cleaning up the git

arch/.gitignore

@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+/i386/
+/x86_64/

arch/alpha/Kbuild

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+# SPDX-License-Identifier: GPL-2.0-only
+obj-y			+= kernel/ mm/
+obj-$(CONFIG_MATHEMU)	+= math-emu/
+
+# for cleaning
+subdir- += boot

arch/alpha/Kconfig

@@ -0,0 +1,678 @@
+# SPDX-License-Identifier: GPL-2.0
+config ALPHA
+	bool
+	default y
+	select ARCH_32BIT_USTAT_F_TINODE
+	select ARCH_MIGHT_HAVE_PC_PARPORT
+	select ARCH_MIGHT_HAVE_PC_SERIO
+	select ARCH_NO_PREEMPT
+	select ARCH_NO_SG_CHAIN
+	select ARCH_USE_CMPXCHG_LOCKREF
+	select DMA_OPS if PCI
+	select FORCE_PCI if !ALPHA_JENSEN
+	select PCI_DOMAINS if PCI
+	select PCI_SYSCALL if PCI
+	select HAVE_AOUT
+	select HAVE_ASM_MODVERSIONS
+	select HAVE_PCSPKR_PLATFORM
+	select HAVE_PERF_EVENTS
+	select NEED_DMA_MAP_STATE
+	select NEED_SG_DMA_LENGTH
+	select VIRT_TO_BUS
+	select GENERIC_IRQ_PROBE
+	select GENERIC_PCI_IOMAP
+	select AUTO_IRQ_AFFINITY if SMP
+	select GENERIC_IRQ_SHOW
+	select ARCH_WANT_IPC_PARSE_VERSION
+	select ARCH_HAVE_NMI_SAFE_CMPXCHG
+	select AUDIT_ARCH
+	select GENERIC_CPU_VULNERABILITIES
+	select GENERIC_SMP_IDLE_THREAD
+	select HAVE_ARCH_AUDITSYSCALL
+	select HAVE_MOD_ARCH_SPECIFIC
+	select MODULES_USE_ELF_RELA
+	select ODD_RT_SIGACTION
+	select OLD_SIGSUSPEND
+	select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
+	select MMU_GATHER_NO_RANGE
+	select SET_FS
+	select SPARSEMEM_EXTREME if SPARSEMEM
+	select ZONE_DMA
+	help
+	  The Alpha is a 64-bit general-purpose processor designed and
+	  marketed by the Digital Equipment Corporation of blessed memory,
+	  now Hewlett-Packard.  The Alpha Linux project has a home page at
+	  <http://www.alphalinux.org/>.
+
+config 64BIT
+	def_bool y
+
+config MMU
+	bool
+	default y
+
+config ARCH_HAS_ILOG2_U32
+	bool
+	default n
+
+config ARCH_HAS_ILOG2_U64
+	bool
+	default n
+
+config GENERIC_CALIBRATE_DELAY
+	bool
+	default y
+
+config GENERIC_ISA_DMA
+	bool
+	default y
+
+config PGTABLE_LEVELS
+	int
+	default 3
+
+config AUDIT_ARCH
+	bool
+
+menu "System setup"
+
+choice
+	prompt "Alpha system type"
+	default ALPHA_GENERIC
+	help
+	  This is the system type of your hardware.  A "generic" kernel will
+	  run on any supported Alpha system. However, if you configure a
+	  kernel for your specific system, it will be faster and smaller.
+
+	  To find out what type of Alpha system you have, you may want to
+	  check out the Linux/Alpha FAQ, accessible on the WWW from
+	  <http://www.alphalinux.org/>. In summary:
+
+	  Alcor/Alpha-XLT     AS 600, AS 500, XL-300, XL-366
+	  Alpha-XL            XL-233, XL-266
+	  AlphaBook1          Alpha laptop
+	  Avanti              AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
+	  Cabriolet           AlphaPC64, AlphaPCI64
+	  DP264               DP264 / DS20 / ES40 / DS10 / DS10L
+	  EB164               EB164 21164 evaluation board
+	  EB64+               EB64+ 21064 evaluation board
+	  EB66                EB66 21066 evaluation board
+	  EB66+               EB66+ 21066 evaluation board
+	  Jensen              DECpc 150, DEC 2000 models 300, 500
+	  LX164               AlphaPC164-LX
+	  Lynx                AS 2100A
+	  Miata               Personal Workstation 433/500/600 a/au
+	  Marvel              AlphaServer ES47 / ES80 / GS1280
+	  Mikasa              AS 1000
+	  Noname              AXPpci33, UDB (Multia)
+	  Noritake            AS 1000A, AS 600A, AS 800
+	  PC164               AlphaPC164
+	  Rawhide             AS 1200, AS 4000, AS 4100
+	  Ruffian             RPX164-2, AlphaPC164-UX, AlphaPC164-BX
+	  SX164               AlphaPC164-SX
+	  Sable               AS 2000, AS 2100
+	  Shark               DS 20L
+	  Takara              Takara (OEM)
+	  Titan               AlphaServer ES45 / DS25 / DS15
+	  Wildfire            AlphaServer GS 40/80/160/320
+
+	  If you don't know what to do, choose "generic".
+
+config ALPHA_GENERIC
+	bool "Generic"
+	depends on TTY
+	select HAVE_EISA
+	help
+	  A generic kernel will run on all supported Alpha hardware.
+
+config ALPHA_ALCOR
+	bool "Alcor/Alpha-XLT"
+	select HAVE_EISA
+	help
+	  For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
+	  slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
+	  Address, CIA) - a 383 pin plastic PGA).  It provides a DRAM
+	  controller (256-bit memory bus) and a PCI interface.  It also does
+	  all the work required to support an external Bcache and to maintain
+	  memory coherence when a PCI device DMAs into (or out of) memory.
+
+config ALPHA_XL
+	bool "Alpha-XL"
+	help
+	  XL-233 and XL-266-based Alpha systems.
+
+config ALPHA_BOOK1
+	bool "AlphaBook1"
+	help
+	  Dec AlphaBook1/Burns Alpha-based laptops.
+
+config ALPHA_AVANTI_CH
+	bool "Avanti"
+
+config ALPHA_CABRIOLET
+	bool "Cabriolet"
+	help
+	  Cabriolet AlphaPC64, AlphaPCI64 systems.  Derived from EB64+ but now
+	  baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
+	  slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
+	  Bcache SIMMs.  Requires power supply with 3.3V output.
+
+config ALPHA_DP264
+	bool "DP264"
+	help
+	  Various 21264 systems with the tsunami core logic chipset.
+	  API Networks: 264DP, UP2000(+), CS20;
+	  Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
+
+config ALPHA_EB164
+	bool "EB164"
+	help
+	  EB164 21164 evaluation board from DEC.  Uses 21164 and ALCOR.  Has
+	  ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
+	  shared with an ISA slot) and 2 32-bit PCI slots.  Uses plus-in
+	  Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
+	  MOUSE (PS2 style), RTC/NVRAM.  Boot ROM is Flash.  PC-AT-sized
+	  motherboard.  Requires power supply with 3.3V output.
+
+config ALPHA_EB64P_CH
+	bool "EB64+"
+
+config ALPHA_EB66
+	bool "EB66"
+	help
+	  A Digital DS group board.  Uses 21066 or 21066A.  I/O sub-system is
+	  identical to EB64+.  Baby PC-AT size.  Runs from standard PC power
+	  supply.  The EB66 schematic was published as a marketing poster
+	  advertising the 21066 as "the first microprocessor in the world with
+	  embedded PCI".
+
+config ALPHA_EB66P
+	bool "EB66+"
+	help
+	  Later variant of the EB66 board.
+
+config ALPHA_EIGER
+	bool "Eiger"
+	help
+	  Apparently an obscure OEM single-board computer based on the
+	  Typhoon/Tsunami chipset family. Information on it is scanty.
+
+config ALPHA_JENSEN
+	bool "Jensen"
+	select HAVE_EISA
+	help
+	  DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
+	  of the first-generation Alpha systems. A number of these systems
+	  seem to be available on the second- hand market. The Jensen is a
+	  floor-standing tower system which originally used a 150MHz 21064 It
+	  used programmable logic to interface a 486 EISA I/O bridge to the
+	  CPU.
+
+config ALPHA_LX164
+	bool "LX164"
+	help
+	  A technical overview of this board is available at
+	  <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
+
+config ALPHA_LYNX
+	bool "Lynx"
+	select HAVE_EISA
+	help
+	  AlphaServer 2100A-based systems.
+
+config ALPHA_MARVEL
+	bool "Marvel"
+	help
+	  AlphaServer ES47 / ES80 / GS1280 based on EV7.
+
+config ALPHA_MIATA
+	bool "Miata"
+	select HAVE_EISA
+	help
+	  The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
+	  or 600au).
+
+config ALPHA_MIKASA
+	bool "Mikasa"
+	help
+	  AlphaServer 1000-based Alpha systems.
+
+config ALPHA_NAUTILUS
+	bool "Nautilus"
+	help
+	  Alpha systems based on the AMD 751 & ALI 1543C chipsets.
+
+config ALPHA_NONAME_CH
+	bool "Noname"
+
+config ALPHA_NORITAKE
+	bool "Noritake"
+	select HAVE_EISA
+	help
+	  AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
+	  systems.
+
+config ALPHA_PC164
+	bool "PC164"
+
+config ALPHA_P2K
+	bool "Platform2000"
+
+config ALPHA_RAWHIDE
+	bool "Rawhide"
+	select HAVE_EISA
+	help
+	  AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
+	  See HOWTO at
+	  <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
+
+config ALPHA_RUFFIAN
+	bool "Ruffian"
+	help
+	  Samsung APC164UX.  There is a page on known problems and workarounds
+	  at <http://www.alphalinux.org/faq/FAQ-11.html>.
+
+config ALPHA_RX164
+	bool "RX164"
+
+config ALPHA_SX164
+	bool "SX164"
+
+config ALPHA_SABLE
+	bool "Sable"
+	select HAVE_EISA
+	help
+	  Digital AlphaServer 2000 and 2100-based systems.
+
+config ALPHA_SHARK
+	bool "Shark"
+
+config ALPHA_TAKARA
+	bool "Takara"
+	help
+	  Alpha 11164-based OEM single-board computer.
+
+config ALPHA_TITAN
+	bool "Titan"
+	help
+	  AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
+
+config ALPHA_WILDFIRE
+	bool "Wildfire"
+	help
+	  AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
+
+endchoice
+
+# clear all implied options (don't want default values for those):
+# Most of these machines have ISA slots; not exactly sure which don't,
+# and this doesn't activate hordes of code, so do it always.
+config ISA
+	bool
+	default y
+	help
+	  Find out whether you have ISA slots on your motherboard.  ISA is the
+	  name of a bus system, i.e. the way the CPU talks to the other stuff
+	  inside your box.  Other bus systems are PCI, EISA, MicroChannel
+	  (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
+	  newer boards don't support it.  If you have ISA, say Y, otherwise N.
+
+config ISA_DMA_API
+	bool
+	default y
+
+config ALPHA_NONAME
+	bool
+	depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
+	default y
+	help
+	  The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
+	  UDB).  This design was produced by Digital's Technical OEM (TOEM)
+	  group. It uses the 21066 processor running at 166MHz or 233MHz. It
+	  is a baby-AT size, and runs from a standard PC power supply. It has
+	  5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
+	  2 versions, with either PS/2 or large DIN connectors for the
+	  keyboard.
+
+config ALPHA_EV4
+	bool
+	depends on ALPHA_JENSEN || (ALPHA_SABLE && !ALPHA_GAMMA) || ALPHA_LYNX || ALPHA_NORITAKE && !ALPHA_PRIMO || ALPHA_MIKASA && !ALPHA_PRIMO || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL || ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
+	default y if !ALPHA_LYNX
+
+config ALPHA_LCA
+	bool
+	depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
+	default y
+
+config ALPHA_APECS
+	bool
+	depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
+	default y
+
+config ALPHA_EB64P
+	bool
+	depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
+	default y
+	help
+	  Uses 21064 or 21064A and APECs.  Has ISA and PCI expansion (3 ISA,
+	  2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
+	  ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
+	  (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
+	  SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM.  PC-AT size.
+	  Runs from standard PC power supply.
+
+config ALPHA_EV5
+	bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
+	default y if ALPHA_RX164 || ALPHA_RAWHIDE || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_SABLE && ALPHA_GAMMA || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR
+
+config ALPHA_EV4
+	bool
+	default y if ALPHA_LYNX && !ALPHA_EV5
+
+config ALPHA_CIA
+	bool
+	depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR
+	default y
+
+config ALPHA_EV56
+	bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
+	default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
+
+config ALPHA_EV56
+	prompt "EV56 CPU (speed >= 333MHz)?"
+	depends on ALPHA_NORITAKE || ALPHA_PRIMO
+
+config ALPHA_EV56
+	prompt "EV56 CPU (speed >= 400MHz)?"
+	depends on ALPHA_RAWHIDE
+
+config ALPHA_PRIMO
+	bool "EV5 CPU daughtercard (model 5/xxx)?"
+	depends on ALPHA_NORITAKE || ALPHA_MIKASA
+	help
+	  Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
+
+config ALPHA_GAMMA
+	bool "EV5 CPU(s) (model 5/xxx)?"
+	depends on ALPHA_SABLE
+	help
+	  Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
+
+config ALPHA_GAMMA
+	bool
+	depends on ALPHA_LYNX
+	default y
+
+config ALPHA_T2
+	bool
+	depends on ALPHA_SABLE || ALPHA_LYNX
+	default y
+
+config ALPHA_PYXIS
+	bool
+	depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
+	default y
+
+config ALPHA_EV6
+	bool
+	depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
+	default y
+
+config ALPHA_TSUNAMI
+	bool
+	depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
+	default y
+
+config ALPHA_EV67
+	bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
+	default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
+	help
+	  Is this a machine based on the EV67 core?  If in doubt, select N here
+	  and the machine will be treated as an EV6.
+
+config ALPHA_MCPCIA
+	bool
+	depends on ALPHA_RAWHIDE
+	default y
+
+config ALPHA_POLARIS
+	bool
+	depends on ALPHA_RX164
+	default y
+
+config ALPHA_IRONGATE
+	bool
+	depends on ALPHA_NAUTILUS
+	default y
+
+config GENERIC_HWEIGHT
+	bool
+	default y if !ALPHA_EV67
+
+config ALPHA_AVANTI
+	bool
+	depends on ALPHA_XL || ALPHA_AVANTI_CH
+	default y
+	help
+	  Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
+	  Alphas. Info at
+	  <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
+
+config ALPHA_BROKEN_IRQ_MASK
+	bool
+	depends on ALPHA_GENERIC || ALPHA_PC164
+	default y
+
+config VGA_HOSE
+	bool
+	depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
+	default y
+	help
+	  Support VGA on an arbitrary hose; needed for several platforms
+	  which always have multiple hoses, and whose consoles support it.
+
+
+config ALPHA_QEMU
+	bool "Run under QEMU emulation"
+	depends on !ALPHA_GENERIC
+	help
+	  Assume the presence of special features supported by QEMU PALcode
+	  that reduce the overhead of system emulation.
+
+	  Generic kernels will auto-detect QEMU.  But when building a
+	  system-specific kernel, the assumption is that we want to
+	  eliminate as many runtime tests as possible.
+
+	  If unsure, say N.
+
+
+config ALPHA_SRM
+	bool "Use SRM as bootloader" if ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_NAUTILUS || ALPHA_NONAME
+	depends on TTY
+	default y if ALPHA_JENSEN || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_DP264 || ALPHA_RAWHIDE || ALPHA_EIGER || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
+	help
+	  There are two different types of booting firmware on Alphas: SRM,
+	  which is command line driven, and ARC, which uses menus and arrow
+	  keys. Details about the Linux/Alpha booting process are contained in
+	  the Linux/Alpha FAQ, accessible on the WWW from
+	  <http://www.alphalinux.org/>.
+
+	  The usual way to load Linux on an Alpha machine is to use MILO
+	  (a bootloader that lets you pass command line parameters to the
+	  kernel just like lilo does for the x86 architecture) which can be
+	  loaded either from ARC or can be installed directly as a permanent
+	  firmware replacement from floppy (which requires changing a certain
+	  jumper on the motherboard). If you want to do either of these, say N
+	  here. If MILO doesn't work on your system (true for Jensen
+	  motherboards), you can bypass it altogether and boot Linux directly
+	  from an SRM console; say Y here in order to do that. Note that you
+	  won't be able to boot from an IDE disk using SRM.
+
+	  If unsure, say N.
+
+config ARCH_MAY_HAVE_PC_FDC
+	def_bool y
+
+config SMP
+	bool "Symmetric multi-processing support"
+	depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
+	help
+	  This enables support for systems with more than one CPU. If you have
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
+
+	  If you say N here, the kernel will run on uni- and multiprocessor
+	  machines, but will use only one CPU of a multiprocessor machine. If
+	  you say Y here, the kernel will run on many, but not all,
+	  uniprocessor machines. On a uniprocessor machine, the kernel
+	  will run faster if you say N here.
+
+	  See also the SMP-HOWTO available at
+	  <https://www.tldp.org/docs.html#howto>.
+
+	  If you don't know what to do here, say N.
+
+config NR_CPUS
+	int "Maximum number of CPUs (2-32)"
+	range 2 32
+	depends on SMP
+	default "32" if ALPHA_GENERIC || ALPHA_MARVEL
+	default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
+	help
+	  MARVEL support can handle a maximum of 32 CPUs, all the others
+	  with working support have a maximum of 4 CPUs.
+
+config ARCH_SPARSEMEM_ENABLE
+	bool "Sparse Memory Support"
+	help
+	  Say Y to support efficient handling of discontiguous physical memory,
+	  for systems that have huge holes in the physical address space.
+
+config ALPHA_WTINT
+	bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
+	default y if ALPHA_QEMU
+	default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
+	default n if !ALPHA_SRM && !ALPHA_GENERIC
+	default y if SMP
+	help
+	  The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
+	  to sleep until the next interrupt.  This may reduce the power
+	  consumed, and the heat produced by the computer.  However, it has
+	  the side effect of making the cycle counter unreliable as a timing
+	  device across the sleep.
+
+	  For emulation under QEMU, definitely say Y here, as we have other
+	  mechanisms for measuring time than the cycle counter.
+
+	  For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
+	  MILO, sleep mode is not supported so you might as well say N here.
+
+	  For SMP systems we cannot use the cycle counter for timing anyway,
+	  so you might as well say Y here.
+
+	  If unsure, say N.
+
+# LARGE_VMALLOC is racy, if you *really* need it then fix it first
+config ALPHA_LARGE_VMALLOC
+	bool
+	help
+	  Process creation and other aspects of virtual memory management can
+	  be streamlined if we restrict the kernel to one PGD for all vmalloc
+	  allocations.  This equates to about 8GB.
+
+	  Under normal circumstances, this is so far and above what is needed
+	  as to be laughable.  However, there are certain applications (such
+	  as benchmark-grade in-kernel web serving) that can make use of as
+	  much vmalloc space as is available.
+
+	  Say N unless you know you need gobs and gobs of vmalloc space.
+
+config VERBOSE_MCHECK
+	bool "Verbose Machine Checks"
+
+config VERBOSE_MCHECK_ON
+	int "Verbose Printing Mode (0=off, 1=on, 2=all)"
+	depends on VERBOSE_MCHECK
+	default 1
+	help
+	  This option allows the default printing mode to be set, and then
+	  possibly overridden by a boot command argument.
+
+	  For example, if one wanted the option of printing verbose
+	  machine checks, but wanted the default to be as if verbose
+	  machine check printing was turned off, then one would choose
+	  the printing mode to be 0. Then, upon reboot, one could add
+	  the boot command line "verbose_mcheck=1" to get the normal
+	  verbose machine check printing, or "verbose_mcheck=2" to get
+	  the maximum information available.
+
+	  Take the default (1) unless you want more control or more info.
+
+choice
+	prompt "Timer interrupt frequency (HZ)?"
+	default HZ_128 if ALPHA_QEMU
+	default HZ_1200 if ALPHA_RAWHIDE
+	default HZ_1024
+	help
+	  The frequency at which timer interrupts occur.  A high frequency
+	  minimizes latency, whereas a low frequency minimizes overhead of
+	  process accounting.  The later effect is especially significant
+	  when being run under QEMU.
+
+	  Note that some Alpha hardware cannot change the interrupt frequency
+	  of the timer.  If unsure, say 1024 (or 1200 for Rawhide).
+
+	config HZ_32
+		bool "32 Hz"
+	config HZ_64
+		bool "64 Hz"
+	config HZ_128
+		bool "128 Hz"
+	config HZ_256
+		bool "256 Hz"
+	config HZ_1024
+		bool "1024 Hz"
+	config HZ_1200
+		bool "1200 Hz"
+endchoice
+
+config HZ
+	int
+	default 32 if HZ_32
+	default 64 if HZ_64
+	default 128 if HZ_128
+	default 256 if HZ_256
+	default 1200 if HZ_1200
+	default 1024
+
+config SRM_ENV
+	tristate "SRM environment through procfs"
+	depends on PROC_FS
+	help
+	  If you enable this option, a subdirectory inside /proc called
+	  /proc/srm_environment will give you access to the all important
+	  SRM environment variables (those which have a name) and also
+	  to all others (by their internal number).
+
+	  SRM is something like a BIOS for Alpha machines. There are some
+	  other such BIOSes, like AlphaBIOS, which this driver cannot
+	  support (hey, that's not SRM!).
+
+	  Despite the fact that this driver doesn't work on all Alphas (but
+	  only on those which have SRM as their firmware), it's save to
+	  build it even if your particular machine doesn't know about SRM
+	  (or if you intend to compile a generic kernel). It will simply
+	  not create those subdirectory in /proc (and give you some warning,
+	  of course).
+
+	  This driver is also available as a module and will be called
+	  srm_env then.
+
+endmenu
+
+# DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
+# but we also need it if VGA_HOSE is set
+config DUMMY_CONSOLE
+	bool
+	depends on VGA_HOSE
+	default y

arch/alpha/Kconfig.debug

@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: GPL-2.0
+
+config EARLY_PRINTK
+	bool
+	depends on ALPHA_GENERIC || ALPHA_SRM
+	default y
+
+config ALPHA_LEGACY_START_ADDRESS
+	bool "Legacy kernel start address"
+	depends on ALPHA_GENERIC
+	default n
+	help
+	  The 2.4 kernel changed the kernel start address from 0x310000
+	  to 0x810000 to make room for the Wildfire's larger SRM console.
+	  Recent consoles on Titan and Marvel machines also require the
+	  extra room.
+
+	  If you're using aboot 0.7 or later, the bootloader will examine the
+	  ELF headers to determine where to transfer control. Unfortunately,
+	  most older bootloaders -- APB or MILO -- hardcoded the kernel start
+	  address rather than examining the ELF headers, and the result is a
+	  hard lockup.
+
+	  Say Y if you have a broken bootloader.  Say N if you do not, or if
+	  you wish to run on Wildfire, Titan, or Marvel.
+
+config ALPHA_LEGACY_START_ADDRESS
+	bool
+	depends on !ALPHA_GENERIC && !ALPHA_TITAN && !ALPHA_MARVEL && !ALPHA_WILDFIRE
+	default y
+
+config MATHEMU
+	tristate "Kernel FP software completion" if DEBUG_KERNEL && !SMP
+	default y if !DEBUG_KERNEL || SMP
+	help
+	  This option is required for IEEE compliant floating point arithmetic
+	  on the Alpha. The only time you would ever not say Y is to say M in
+	  order to debug the code. Say Y unless you know what you are doing.

arch/alpha/Makefile

@@ -0,0 +1,66 @@
+#
+# alpha/Makefile
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1994 by Linus Torvalds
+#
+
+NM := $(NM) -B
+
+LDFLAGS_vmlinux	:= -static -N #-relax
+CHECKFLAGS	+= -D__alpha__
+cflags-y	:= -pipe -mno-fp-regs -ffixed-8
+cflags-y	+= $(call cc-option, -fno-jump-tables)
+
+cpuflags-$(CONFIG_ALPHA_EV4)		:= -mcpu=ev4
+cpuflags-$(CONFIG_ALPHA_EV5)		:= -mcpu=ev5
+cpuflags-$(CONFIG_ALPHA_EV56)		:= -mcpu=ev56
+cpuflags-$(CONFIG_ALPHA_POLARIS)	:= -mcpu=pca56
+cpuflags-$(CONFIG_ALPHA_SX164)		:= -mcpu=pca56
+cpuflags-$(CONFIG_ALPHA_EV6)		:= -mcpu=ev6
+cpuflags-$(CONFIG_ALPHA_EV67)		:= -mcpu=ev67
+# If GENERIC, make sure to turn off any instruction set extensions that
+# the host compiler might have on by default.  Given that EV4 and EV5
+# have the same instruction set, prefer EV5 because an EV5 schedule is
+# more likely to keep an EV4 processor busy than vice-versa.
+cpuflags-$(CONFIG_ALPHA_GENERIC)	:= -mcpu=ev5
+
+cflags-y				+= $(cpuflags-y)
+
+
+# For TSUNAMI, we must have the assembler not emulate our instructions.
+# The same is true for IRONGATE, POLARIS, PYXIS.
+# BWX is most important, but we don't really want any emulation ever.
+KBUILD_CFLAGS += $(cflags-y) -Wa,-mev6
+
+head-y := arch/alpha/kernel/head.o
+
+libs-y				+= arch/alpha/lib/
+
+# export what is needed by arch/alpha/boot/Makefile
+LIBS_Y := $(patsubst %/, %/lib.a, $(libs-y))
+export LIBS_Y
+
+boot := arch/alpha/boot
+
+#Default target when executing make with no arguments
+all boot: $(boot)/vmlinux.gz
+
+$(boot)/vmlinux.gz: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $@
+
+bootimage bootpfile bootpzfile: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
+
+archheaders:
+	$(Q)$(MAKE) $(build)=arch/alpha/kernel/syscalls all
+
+define archhelp
+  echo '* boot		- Compressed kernel image (arch/alpha/boot/vmlinux.gz)'
+  echo '  bootimage	- SRM bootable image (arch/alpha/boot/bootimage)'
+  echo '  bootpfile	- BOOTP bootable image (arch/alpha/boot/bootpfile)'
+  echo '  bootpzfile	- compressed kernel BOOTP image (arch/alpha/boot/bootpzfile)'
+endef

arch/alpha/boot/Makefile

@@ -0,0 +1,120 @@
+#
+# arch/alpha/boot/Makefile
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1994 by Linus Torvalds
+#
+
+hostprogs	:= tools/mkbb tools/objstrip
+targets		:= vmlinux.gz vmlinux \
+		   vmlinux.nh tools/lxboot tools/bootlx tools/bootph \
+		   tools/bootpzh bootloader bootpheader bootpzheader 
+OBJSTRIP	:= $(obj)/tools/objstrip
+
+KBUILD_HOSTCFLAGS := -Wall -I$(objtree)/usr/include
+BOOTCFLAGS	+= -I$(objtree)/$(obj) -I$(srctree)/$(obj)
+
+# SRM bootable image.  Copy to offset 512 of a partition.
+$(obj)/bootimage: $(addprefix $(obj)/tools/,mkbb lxboot bootlx) $(obj)/vmlinux.nh
+	( cat $(obj)/tools/lxboot $(obj)/tools/bootlx $(obj)/vmlinux.nh ) > $@ 
+	$(obj)/tools/mkbb $@ $(obj)/tools/lxboot
+	@echo '  Bootimage $@ is ready'
+
+# BOOTP bootable image.  Define INITRD during make to append initrd image.
+$(obj)/bootpfile: $(obj)/tools/bootph $(obj)/vmlinux.nh
+	cat $(obj)/tools/bootph $(obj)/vmlinux.nh > $@
+ifdef INITRD
+	cat $(INITRD) >> $@
+endif
+
+# Compressed kernel BOOTP bootable image.
+# Define INITRD during make to append initrd image.
+$(obj)/bootpzfile: $(obj)/tools/bootpzh $(obj)/vmlinux.nh.gz
+	cat $(obj)/tools/bootpzh $(obj)/vmlinux.nh.gz > $@
+ifdef INITRD
+	cat $(INITRD) >> $@
+endif
+
+# Compressed kernel image
+$(obj)/vmlinux.gz: $(obj)/vmlinux FORCE
+	$(call if_changed,gzip)
+	@echo '  Kernel $@ is ready'
+
+$(obj)/main.o: $(obj)/ksize.h
+$(obj)/bootp.o: $(obj)/ksize.h
+$(obj)/bootpz.o: $(obj)/kzsize.h
+
+$(obj)/ksize.h: $(obj)/vmlinux.nh FORCE
+	echo "#define KERNEL_SIZE `ls -l $(obj)/vmlinux.nh | awk '{print $$5}'`" > $@T
+ifdef INITRD
+	[ -f $(INITRD) ] || exit 1
+	echo "#define INITRD_IMAGE_SIZE `ls -l $(INITRD) | awk '{print $$5}'`" >> $@T
+endif
+	cmp -s $@T $@ || mv -f $@T $@
+	rm -f $@T
+
+$(obj)/kzsize.h: $(obj)/vmlinux.nh.gz FORCE
+	echo "#define KERNEL_SIZE `ls -l $(obj)/vmlinux.nh | awk '{print $$5}'`" > $@T
+	echo "#define KERNEL_Z_SIZE `ls -l $(obj)/vmlinux.nh.gz | awk '{print $$5}'`" >> $@T
+ifdef INITRD
+	[ -f $(INITRD) ] || exit 1
+	echo "#define INITRD_IMAGE_SIZE `ls -l $(INITRD) | awk '{print $$5}'`" >> $@T
+endif
+	cmp -s $@T $@ || mv -f $@T $@
+	rm -f $@T
+
+quiet_cmd_strip = STRIP  $@
+      cmd_strip = $(STRIP) -o $@ $<
+
+$(obj)/vmlinux: vmlinux FORCE
+	$(call if_changed,strip)
+
+quiet_cmd_objstrip = OBJSTRIP $@
+      cmd_objstrip = $(OBJSTRIP) $(OSFLAGS_$(@F)) $< $@
+
+OSFLAGS_vmlinux.nh	:= -v
+OSFLAGS_lxboot		:= -p
+OSFLAGS_bootlx		:= -vb
+OSFLAGS_bootph		:= -vb
+OSFLAGS_bootpzh		:= -vb
+
+$(obj)/vmlinux.nh: vmlinux $(OBJSTRIP) FORCE
+	$(call if_changed,objstrip)
+
+$(obj)/vmlinux.nh.gz: $(obj)/vmlinux.nh FORCE
+	$(call if_changed,gzip)
+
+$(obj)/tools/lxboot: $(obj)/bootloader $(OBJSTRIP) FORCE
+	$(call if_changed,objstrip)
+
+$(obj)/tools/bootlx: $(obj)/bootloader $(OBJSTRIP) FORCE
+	$(call if_changed,objstrip)
+
+$(obj)/tools/bootph: $(obj)/bootpheader $(OBJSTRIP) FORCE
+	$(call if_changed,objstrip)
+
+$(obj)/tools/bootpzh: $(obj)/bootpzheader $(OBJSTRIP) FORCE
+	$(call if_changed,objstrip)
+
+LDFLAGS_bootloader   := -static -T # -N -relax
+LDFLAGS_bootloader   := -static -T # -N -relax
+LDFLAGS_bootpheader  := -static -T # -N -relax
+LDFLAGS_bootpzheader := -static -T # -N -relax
+
+OBJ_bootlx   := $(obj)/head.o $(obj)/stdio.o $(obj)/main.o
+OBJ_bootph   := $(obj)/head.o $(obj)/stdio.o $(obj)/bootp.o
+OBJ_bootpzh  := $(obj)/head.o $(obj)/stdio.o $(obj)/bootpz.o $(obj)/misc.o
+
+$(obj)/bootloader: $(obj)/bootloader.lds $(OBJ_bootlx) $(LIBS_Y) FORCE
+	$(call if_changed,ld)
+
+$(obj)/bootpheader: $(obj)/bootloader.lds $(OBJ_bootph) $(LIBS_Y) FORCE
+	$(call if_changed,ld)
+
+$(obj)/bootpzheader: $(obj)/bootloader.lds $(OBJ_bootpzh) $(LIBS_Y) FORCE
+	$(call if_changed,ld)
+
+$(obj)/misc.o: lib/inflate.c

arch/alpha/boot/bootloader.lds

@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+OUTPUT_FORMAT("elf64-alpha")
+ENTRY(__start)
+printk = srm_printk;
+SECTIONS
+{
+  . = 0x20000000;
+  .text : { *(.text) }
+  _etext = .;
+  PROVIDE (etext = .);
+  .rodata : { *(.rodata) *(.rodata.*) }
+  .data : { *(.data) CONSTRUCTORS }
+  .got : { *(.got) }
+  .sdata : { *(.sdata) }
+  _edata = .;
+  PROVIDE (edata = .);
+  .sbss : { *(.sbss) *(.scommon) }
+  .bss : { *(.bss) *(COMMON) }
+  _end = . ;
+  PROVIDE (end = .);
+
+  .mdebug 0 : { *(.mdebug) }
+  .note 0 : { *(.note) }
+  .comment 0 : { *(.comment) }
+}

arch/alpha/boot/bootp.c

@@ -0,0 +1,214 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * arch/alpha/boot/bootp.c
+ *
+ * Copyright (C) 1997 Jay Estabrook
+ *
+ * This file is used for creating a bootp file for the Linux/AXP kernel
+ *
+ * based significantly on the arch/alpha/boot/main.c of Linus Torvalds
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <generated/utsrelease.h>
+#include <linux/mm.h>
+
+#include <asm/console.h>
+#include <asm/hwrpb.h>
+#include <asm/io.h>
+
+#include <stdarg.h>
+
+#include "ksize.h"
+
+extern unsigned long switch_to_osf_pal(unsigned long nr,
+	struct pcb_struct *pcb_va, struct pcb_struct *pcb_pa,
+	unsigned long *vptb);
+
+extern void move_stack(unsigned long new_stack);
+
+struct hwrpb_struct *hwrpb = INIT_HWRPB;
+static struct pcb_struct pcb_va[1];
+
+/*
+ * Find a physical address of a virtual object..
+ *
+ * This is easy using the virtual page table address.
+ */
+
+static inline void *
+find_pa(unsigned long *vptb, void *ptr)
+{
+	unsigned long address = (unsigned long) ptr;
+	unsigned long result;
+
+	result = vptb[address >> 13];
+	result >>= 32;
+	result <<= 13;
+	result |= address & 0x1fff;
+	return (void *) result;
+}	
+
+/*
+ * This function moves into OSF/1 pal-code, and has a temporary
+ * PCB for that. The kernel proper should replace this PCB with
+ * the real one as soon as possible.
+ *
+ * The page table muckery in here depends on the fact that the boot
+ * code has the L1 page table identity-map itself in the second PTE
+ * in the L1 page table. Thus the L1-page is virtually addressable
+ * itself (through three levels) at virtual address 0x200802000.
+ */
+
+#define VPTB	((unsigned long *) 0x200000000)
+#define L1	((unsigned long *) 0x200802000)
+
+void
+pal_init(void)
+{
+	unsigned long i, rev;
+	struct percpu_struct * percpu;
+	struct pcb_struct * pcb_pa;
+
+	/* Create the dummy PCB.  */
+	pcb_va->ksp = 0;
+	pcb_va->usp = 0;
+	pcb_va->ptbr = L1[1] >> 32;
+	pcb_va->asn = 0;
+	pcb_va->pcc = 0;
+	pcb_va->unique = 0;
+	pcb_va->flags = 1;
+	pcb_va->res1 = 0;
+	pcb_va->res2 = 0;
+	pcb_pa = find_pa(VPTB, pcb_va);
+
+	/*
+	 * a0 = 2 (OSF)
+	 * a1 = return address, but we give the asm the vaddr of the PCB
+	 * a2 = physical addr of PCB
+	 * a3 = new virtual page table pointer
+	 * a4 = KSP (but the asm sets it)
+	 */
+	srm_printk("Switching to OSF PAL-code .. ");
+
+	i = switch_to_osf_pal(2, pcb_va, pcb_pa, VPTB);
+	if (i) {
+		srm_printk("failed, code %ld\n", i);
+		__halt();
+	}
+
+	percpu = (struct percpu_struct *)
+		(INIT_HWRPB->processor_offset + (unsigned long) INIT_HWRPB);
+	rev = percpu->pal_revision = percpu->palcode_avail[2];
+
+	srm_printk("Ok (rev %lx)\n", rev);
+
+	tbia(); /* do it directly in case we are SMP */
+}
+
+static inline void
+load(unsigned long dst, unsigned long src, unsigned long count)
+{
+	memcpy((void *)dst, (void *)src, count);
+}
+
+/*
+ * Start the kernel.
+ */
+static inline void
+runkernel(void)
+{
+	__asm__ __volatile__(
+		"bis %0,%0,$27\n\t"
+		"jmp ($27)"
+		: /* no outputs: it doesn't even return */
+		: "r" (START_ADDR));
+}
+
+extern char _end;
+#define KERNEL_ORIGIN \
+	((((unsigned long)&_end) + 511) & ~511)
+
+void
+start_kernel(void)
+{
+	/*
+	 * Note that this crufty stuff with static and envval
+	 * and envbuf is because:
+	 *
+	 * 1. Frequently, the stack is short, and we don't want to overrun;
+	 * 2. Frequently the stack is where we are going to copy the kernel to;
+	 * 3. A certain SRM console required the GET_ENV output to stack.
+	 *    ??? A comment in the aboot sources indicates that the GET_ENV
+	 *    destination must be quadword aligned.  Might this explain the
+	 *    behaviour, rather than requiring output to the stack, which
+	 *    seems rather far-fetched.
+	 */
+	static long nbytes;
+	static char envval[256] __attribute__((aligned(8)));
+	static unsigned long initrd_start;
+
+	srm_printk("Linux/AXP bootp loader for Linux " UTS_RELEASE "\n");
+	if (INIT_HWRPB->pagesize != 8192) {
+		srm_printk("Expected 8kB pages, got %ldkB\n",
+		           INIT_HWRPB->pagesize >> 10);
+		return;
+	}
+	if (INIT_HWRPB->vptb != (unsigned long) VPTB) {
+		srm_printk("Expected vptb at %p, got %p\n",
+			   VPTB, (void *)INIT_HWRPB->vptb);
+		return;
+	}
+	pal_init();
+
+	/* The initrd must be page-aligned.  See below for the 
+	   cause of the magic number 5.  */
+	initrd_start = ((START_ADDR + 5*KERNEL_SIZE + PAGE_SIZE) |
+			(PAGE_SIZE-1)) + 1;
+#ifdef INITRD_IMAGE_SIZE
+	srm_printk("Initrd positioned at %#lx\n", initrd_start);
+#endif
+
+	/*
+	 * Move the stack to a safe place to ensure it won't be
+	 * overwritten by kernel image.
+	 */
+	move_stack(initrd_start - PAGE_SIZE);
+
+	nbytes = callback_getenv(ENV_BOOTED_OSFLAGS, envval, sizeof(envval));
+	if (nbytes < 0 || nbytes >= sizeof(envval)) {
+		nbytes = 0;
+	}
+	envval[nbytes] = '\0';
+	srm_printk("Loading the kernel...'%s'\n", envval);
+
+	/* NOTE: *no* callbacks or printouts from here on out!!! */
+
+	/* This is a hack, as some consoles seem to get virtual 20000000 (ie
+	 * where the SRM console puts the kernel bootp image) memory
+	 * overlapping physical memory where the kernel wants to be put,
+	 * which causes real problems when attempting to copy the former to
+	 * the latter... :-(
+	 *
+	 * So, we first move the kernel virtual-to-physical way above where
+	 * we physically want the kernel to end up, then copy it from there
+	 * to its final resting place... ;-}
+	 *
+	 * Sigh...  */
+
+#ifdef INITRD_IMAGE_SIZE
+	load(initrd_start, KERNEL_ORIGIN+KERNEL_SIZE, INITRD_IMAGE_SIZE);
+#endif
+        load(START_ADDR+(4*KERNEL_SIZE), KERNEL_ORIGIN, KERNEL_SIZE);
+        load(START_ADDR, START_ADDR+(4*KERNEL_SIZE), KERNEL_SIZE);
+
+	memset((char*)ZERO_PGE, 0, PAGE_SIZE);
+	strcpy((char*)ZERO_PGE, envval);
+#ifdef INITRD_IMAGE_SIZE
+	((long *)(ZERO_PGE+256))[0] = initrd_start;
+	((long *)(ZERO_PGE+256))[1] = INITRD_IMAGE_SIZE;
+#endif
+
+	runkernel();
+}

arch/alpha/boot/bootpz.c

@@ -0,0 +1,475 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * arch/alpha/boot/bootpz.c
+ *
+ * Copyright (C) 1997 Jay Estabrook
+ *
+ * This file is used for creating a compressed BOOTP file for the
+ * Linux/AXP kernel
+ *
+ * based significantly on the arch/alpha/boot/main.c of Linus Torvalds
+ * and the decompression code from MILO.
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <generated/utsrelease.h>
+#include <linux/mm.h>
+
+#include <asm/console.h>
+#include <asm/hwrpb.h>
+#include <asm/io.h>
+
+#include <stdarg.h>
+
+#include "kzsize.h"
+
+/* FIXME FIXME FIXME */
+#define MALLOC_AREA_SIZE 0x200000 /* 2MB for now */
+/* FIXME FIXME FIXME */
+
+
+/*
+  WARNING NOTE
+
+  It is very possible that turning on additional messages may cause
+  kernel image corruption due to stack usage to do the printing.
+
+*/
+
+#undef DEBUG_CHECK_RANGE
+#undef DEBUG_ADDRESSES
+#undef DEBUG_LAST_STEPS
+
+extern unsigned long switch_to_osf_pal(unsigned long nr,
+	struct pcb_struct * pcb_va, struct pcb_struct * pcb_pa,
+	unsigned long *vptb);
+
+extern int decompress_kernel(void* destination, void *source,
+			     size_t ksize, size_t kzsize);
+
+extern void move_stack(unsigned long new_stack);
+
+struct hwrpb_struct *hwrpb = INIT_HWRPB;
+static struct pcb_struct pcb_va[1];
+
+/*
+ * Find a physical address of a virtual object..
+ *
+ * This is easy using the virtual page table address.
+ */
+#define VPTB	((unsigned long *) 0x200000000)
+
+static inline unsigned long
+find_pa(unsigned long address)
+{
+	unsigned long result;
+
+	result = VPTB[address >> 13];
+	result >>= 32;
+	result <<= 13;
+	result |= address & 0x1fff;
+	return result;
+}	
+
+int
+check_range(unsigned long vstart, unsigned long vend,
+	    unsigned long kstart, unsigned long kend)
+{
+	unsigned long vaddr, kaddr;
+
+#ifdef DEBUG_CHECK_RANGE
+	srm_printk("check_range: V[0x%lx:0x%lx] K[0x%lx:0x%lx]\n",
+		   vstart, vend, kstart, kend);
+#endif
+	/* do some range checking for detecting an overlap... */
+	for (vaddr = vstart; vaddr <= vend; vaddr += PAGE_SIZE)
+	{
+		kaddr = (find_pa(vaddr) | PAGE_OFFSET);
+		if (kaddr >= kstart && kaddr <= kend)
+		{
+#ifdef DEBUG_CHECK_RANGE
+			srm_printk("OVERLAP: vaddr 0x%lx kaddr 0x%lx"
+				   " [0x%lx:0x%lx]\n",
+				   vaddr, kaddr, kstart, kend);
+#endif
+			return 1;
+		}
+	}
+	return 0;
+}
+
+/*
+ * This function moves into OSF/1 pal-code, and has a temporary
+ * PCB for that. The kernel proper should replace this PCB with
+ * the real one as soon as possible.
+ *
+ * The page table muckery in here depends on the fact that the boot
+ * code has the L1 page table identity-map itself in the second PTE
+ * in the L1 page table. Thus the L1-page is virtually addressable
+ * itself (through three levels) at virtual address 0x200802000.
+ */
+
+#define L1	((unsigned long *) 0x200802000)
+
+void
+pal_init(void)
+{
+	unsigned long i, rev;
+	struct percpu_struct * percpu;
+	struct pcb_struct * pcb_pa;
+
+	/* Create the dummy PCB.  */
+	pcb_va->ksp = 0;
+	pcb_va->usp = 0;
+	pcb_va->ptbr = L1[1] >> 32;
+	pcb_va->asn = 0;
+	pcb_va->pcc = 0;
+	pcb_va->unique = 0;
+	pcb_va->flags = 1;
+	pcb_va->res1 = 0;
+	pcb_va->res2 = 0;
+	pcb_pa = (struct pcb_struct *)find_pa((unsigned long)pcb_va);
+
+	/*
+	 * a0 = 2 (OSF)
+	 * a1 = return address, but we give the asm the vaddr of the PCB
+	 * a2 = physical addr of PCB
+	 * a3 = new virtual page table pointer
+	 * a4 = KSP (but the asm sets it)
+	 */
+	srm_printk("Switching to OSF PAL-code... ");
+
+	i = switch_to_osf_pal(2, pcb_va, pcb_pa, VPTB);
+	if (i) {
+		srm_printk("failed, code %ld\n", i);
+		__halt();
+	}
+
+	percpu = (struct percpu_struct *)
+		(INIT_HWRPB->processor_offset + (unsigned long) INIT_HWRPB);
+	rev = percpu->pal_revision = percpu->palcode_avail[2];
+
+	srm_printk("OK (rev %lx)\n", rev);
+
+	tbia(); /* do it directly in case we are SMP */
+}
+
+/*
+ * Start the kernel.
+ */
+static inline void
+runkernel(void)
+{
+	__asm__ __volatile__(
+		"bis %0,%0,$27\n\t"
+		"jmp ($27)"
+		: /* no outputs: it doesn't even return */
+		: "r" (START_ADDR));
+}
+
+/* Must record the SP (it is virtual) on entry, so we can make sure
+   not to overwrite it during movement or decompression. */
+unsigned long SP_on_entry;
+
+/* Calculate the kernel image address based on the end of the BOOTP
+   bootstrapper (ie this program).
+*/
+extern char _end;
+#define KERNEL_ORIGIN \
+	((((unsigned long)&_end) + 511) & ~511)
+
+/* Round address to next higher page boundary. */
+#define NEXT_PAGE(a)	(((a) | (PAGE_SIZE - 1)) + 1)
+
+#ifdef INITRD_IMAGE_SIZE
+# define REAL_INITRD_SIZE INITRD_IMAGE_SIZE
+#else
+# define REAL_INITRD_SIZE 0
+#endif
+
+/* Defines from include/asm-alpha/system.h
+
+	BOOT_ADDR	Virtual address at which the consoles loads
+			the BOOTP image.
+
+	KERNEL_START    KSEG address at which the kernel is built to run,
+			which includes some initial data pages before the
+			code.
+
+	START_ADDR	KSEG address of the entry point of kernel code.
+
+	ZERO_PGE	KSEG address of page full of zeroes, but 
+			upon entry to kernel, it can be expected
+			to hold the parameter list and possible
+			INTRD information.
+
+   These are used in the local defines below.
+*/
+  
+
+/* Virtual addresses for the BOOTP image. Note that this includes the
+   bootstrapper code as well as the compressed kernel image, and
+   possibly the INITRD image.
+
+   Oh, and do NOT forget the STACK, which appears to be placed virtually
+   beyond the end of the loaded image.
+*/
+#define V_BOOT_IMAGE_START	BOOT_ADDR
+#define V_BOOT_IMAGE_END	SP_on_entry
+
+/* Virtual addresses for just the bootstrapper part of the BOOTP image. */
+#define V_BOOTSTRAPPER_START	BOOT_ADDR
+#define V_BOOTSTRAPPER_END	KERNEL_ORIGIN
+
+/* Virtual addresses for just the data part of the BOOTP
+   image. This may also include the INITRD image, but always
+   includes the STACK.
+*/
+#define V_DATA_START		KERNEL_ORIGIN
+#define V_INITRD_START		(KERNEL_ORIGIN + KERNEL_Z_SIZE)
+#define V_INTRD_END		(V_INITRD_START + REAL_INITRD_SIZE)
+#define V_DATA_END	 	V_BOOT_IMAGE_END
+
+/* KSEG addresses for the uncompressed kernel.
+
+   Note that the end address includes workspace for the decompression.
+   Note also that the DATA_START address is ZERO_PGE, to which we write
+   just before jumping to the kernel image at START_ADDR.
+ */
+#define K_KERNEL_DATA_START	ZERO_PGE
+#define K_KERNEL_IMAGE_START	START_ADDR
+#define K_KERNEL_IMAGE_END	(START_ADDR + KERNEL_SIZE)
+
+/* Define to where we may have to decompress the kernel image, before
+   we move it to the final position, in case of overlap. This will be
+   above the final position of the kernel.
+
+   Regardless of overlap, we move the INITRD image to the end of this
+   copy area, because there needs to be a buffer area after the kernel
+   for "bootmem" anyway.
+*/
+#define K_COPY_IMAGE_START	NEXT_PAGE(K_KERNEL_IMAGE_END)
+/* Reserve one page below INITRD for the new stack. */
+#define K_INITRD_START \
+    NEXT_PAGE(K_COPY_IMAGE_START + KERNEL_SIZE + PAGE_SIZE)
+#define K_COPY_IMAGE_END \
+    (K_INITRD_START + REAL_INITRD_SIZE + MALLOC_AREA_SIZE)
+#define K_COPY_IMAGE_SIZE \
+    NEXT_PAGE(K_COPY_IMAGE_END - K_COPY_IMAGE_START)
+
+void
+start_kernel(void)
+{
+	int must_move = 0;
+
+	/* Initialize these for the decompression-in-place situation,
+	   which is the smallest amount of work and most likely to
+	   occur when using the normal START_ADDR of the kernel
+	   (currently set to 16MB, to clear all console code.
+	*/
+	unsigned long uncompressed_image_start = K_KERNEL_IMAGE_START;
+	unsigned long uncompressed_image_end = K_KERNEL_IMAGE_END;
+
+	unsigned long initrd_image_start = K_INITRD_START;
+
+	/*
+	 * Note that this crufty stuff with static and envval
+	 * and envbuf is because:
+	 *
+	 * 1. Frequently, the stack is short, and we don't want to overrun;
+	 * 2. Frequently the stack is where we are going to copy the kernel to;
+	 * 3. A certain SRM console required the GET_ENV output to stack.
+	 *    ??? A comment in the aboot sources indicates that the GET_ENV
+	 *    destination must be quadword aligned.  Might this explain the
+	 *    behaviour, rather than requiring output to the stack, which
+	 *    seems rather far-fetched.
+	 */
+	static long nbytes;
+	static char envval[256] __attribute__((aligned(8)));
+	register unsigned long asm_sp asm("30");
+
+	SP_on_entry = asm_sp;
+
+	srm_printk("Linux/Alpha BOOTPZ Loader for Linux " UTS_RELEASE "\n");
+
+	/* Validity check the HWRPB. */
+	if (INIT_HWRPB->pagesize != 8192) {
+		srm_printk("Expected 8kB pages, got %ldkB\n",
+		           INIT_HWRPB->pagesize >> 10);
+		return;
+	}
+	if (INIT_HWRPB->vptb != (unsigned long) VPTB) {
+		srm_printk("Expected vptb at %p, got %p\n",
+			   VPTB, (void *)INIT_HWRPB->vptb);
+		return;
+	}
+
+	/* PALcode (re)initialization. */
+	pal_init();
+
+	/* Get the parameter list from the console environment variable. */
+	nbytes = callback_getenv(ENV_BOOTED_OSFLAGS, envval, sizeof(envval));
+	if (nbytes < 0 || nbytes >= sizeof(envval)) {
+		nbytes = 0;
+	}
+	envval[nbytes] = '\0';
+
+#ifdef DEBUG_ADDRESSES
+	srm_printk("START_ADDR 0x%lx\n", START_ADDR);
+	srm_printk("KERNEL_ORIGIN 0x%lx\n", KERNEL_ORIGIN);
+	srm_printk("KERNEL_SIZE 0x%x\n", KERNEL_SIZE);
+	srm_printk("KERNEL_Z_SIZE 0x%x\n", KERNEL_Z_SIZE);
+#endif
+
+	/* Since all the SRM consoles load the BOOTP image at virtual
+	 * 0x20000000, we have to ensure that the physical memory
+	 * pages occupied by that image do NOT overlap the physical
+	 * address range where the kernel wants to be run.  This
+	 * causes real problems when attempting to cdecompress the
+	 * former into the latter... :-(
+	 *
+	 * So, we may have to decompress/move the kernel/INITRD image
+	 * virtual-to-physical someplace else first before moving
+	 * kernel /INITRD to their final resting places... ;-}
+	 *
+	 * Sigh...
+	 */
+
+	/* First, check to see if the range of addresses occupied by
+	   the bootstrapper part of the BOOTP image include any of the
+	   physical pages into which the kernel will be placed for
+	   execution.
+
+	   We only need check on the final kernel image range, since we
+	   will put the INITRD someplace that we can be sure is not
+	   in conflict.
+	 */
+	if (check_range(V_BOOTSTRAPPER_START, V_BOOTSTRAPPER_END,
+			K_KERNEL_DATA_START, K_KERNEL_IMAGE_END))
+	{
+		srm_printk("FATAL ERROR: overlap of bootstrapper code\n");
+		__halt();
+	}
+
+	/* Next, check to see if the range of addresses occupied by
+	   the compressed kernel/INITRD/stack portion of the BOOTP
+	   image include any of the physical pages into which the
+	   decompressed kernel or the INITRD will be placed for
+	   execution.
+	 */
+	if (check_range(V_DATA_START, V_DATA_END,
+			K_KERNEL_IMAGE_START, K_COPY_IMAGE_END))
+	{
+#ifdef DEBUG_ADDRESSES
+		srm_printk("OVERLAP: cannot decompress in place\n");
+#endif
+		uncompressed_image_start = K_COPY_IMAGE_START;
+		uncompressed_image_end = K_COPY_IMAGE_END;
+		must_move = 1;
+
+		/* Finally, check to see if the range of addresses
+		   occupied by the compressed kernel/INITRD part of
+		   the BOOTP image include any of the physical pages
+		   into which that part is to be copied for
+		   decompression.
+		*/
+		while (check_range(V_DATA_START, V_DATA_END,
+				   uncompressed_image_start,
+				   uncompressed_image_end))
+		{
+#if 0
+			uncompressed_image_start += K_COPY_IMAGE_SIZE;
+			uncompressed_image_end += K_COPY_IMAGE_SIZE;
+			initrd_image_start += K_COPY_IMAGE_SIZE;
+#else
+			/* Keep as close as possible to end of BOOTP image. */
+			uncompressed_image_start += PAGE_SIZE;
+			uncompressed_image_end += PAGE_SIZE;
+			initrd_image_start += PAGE_SIZE;
+#endif
+		}
+	}
+
+	srm_printk("Starting to load the kernel with args '%s'\n", envval);
+
+#ifdef DEBUG_ADDRESSES
+	srm_printk("Decompressing the kernel...\n"
+		   "...from 0x%lx to 0x%lx size 0x%x\n",
+		   V_DATA_START,
+		   uncompressed_image_start,
+		   KERNEL_SIZE);
+#endif
+        decompress_kernel((void *)uncompressed_image_start,
+			  (void *)V_DATA_START,
+			  KERNEL_SIZE, KERNEL_Z_SIZE);
+
+	/*
+	 * Now, move things to their final positions, if/as required.
+	 */
+
+#ifdef INITRD_IMAGE_SIZE
+
+	/* First, we always move the INITRD image, if present. */
+#ifdef DEBUG_ADDRESSES
+	srm_printk("Moving the INITRD image...\n"
+		   " from 0x%lx to 0x%lx size 0x%x\n",
+		   V_INITRD_START,
+		   initrd_image_start,
+		   INITRD_IMAGE_SIZE);
+#endif
+	memcpy((void *)initrd_image_start, (void *)V_INITRD_START,
+	       INITRD_IMAGE_SIZE);
+
+#endif /* INITRD_IMAGE_SIZE */
+
+	/* Next, we may have to move the uncompressed kernel to the
+	   final destination.
+	 */
+	if (must_move) {
+#ifdef DEBUG_ADDRESSES
+		srm_printk("Moving the uncompressed kernel...\n"
+			   "...from 0x%lx to 0x%lx size 0x%x\n",
+			   uncompressed_image_start,
+			   K_KERNEL_IMAGE_START,
+			   (unsigned)KERNEL_SIZE);
+#endif
+		/*
+		 * Move the stack to a safe place to ensure it won't be
+		 * overwritten by kernel image.
+		 */
+		move_stack(initrd_image_start - PAGE_SIZE);
+
+		memcpy((void *)K_KERNEL_IMAGE_START,
+		       (void *)uncompressed_image_start, KERNEL_SIZE);
+	}
+	
+	/* Clear the zero page, then move the argument list in. */
+#ifdef DEBUG_LAST_STEPS
+	srm_printk("Preparing ZERO_PGE...\n");
+#endif
+	memset((char*)ZERO_PGE, 0, PAGE_SIZE);
+	strcpy((char*)ZERO_PGE, envval);
+
+#ifdef INITRD_IMAGE_SIZE
+
+#ifdef DEBUG_LAST_STEPS
+	srm_printk("Preparing INITRD info...\n");
+#endif
+	/* Finally, set the INITRD paramenters for the kernel. */
+	((long *)(ZERO_PGE+256))[0] = initrd_image_start;
+	((long *)(ZERO_PGE+256))[1] = INITRD_IMAGE_SIZE;
+
+#endif /* INITRD_IMAGE_SIZE */
+
+#ifdef DEBUG_LAST_STEPS
+	srm_printk("Doing 'runkernel()'...\n");
+#endif
+	runkernel();
+}
+
+ /* dummy function, should never be called. */
+void *__kmalloc(size_t size, gfp_t flags)
+{
+	return (void *)NULL;
+}

arch/alpha/boot/head.S

@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * arch/alpha/boot/head.S
+ *
+ * initial bootloader stuff..
+ */
+
+#include <asm/pal.h>
+
+	.set noreorder
+	.globl	__start
+	.ent	__start
+__start:
+	br	$29,2f
+2:	ldgp	$29,0($29)
+	jsr	$26,start_kernel
+	call_pal PAL_halt
+	.end __start
+
+	.align 5
+	.globl	wrent
+	.ent	wrent
+wrent:
+	.prologue 0
+	call_pal PAL_wrent
+	ret ($26)
+	.end wrent
+
+	.align 5
+	.globl	wrkgp
+	.ent	wrkgp
+wrkgp:
+	.prologue 0
+	call_pal PAL_wrkgp
+	ret ($26)
+	.end wrkgp
+
+	.align 5
+	.globl	switch_to_osf_pal
+	.ent	switch_to_osf_pal
+switch_to_osf_pal:
+	subq	$30,128,$30
+	.frame	$30,128,$26
+	stq	$26,0($30)
+	stq	$1,8($30)
+	stq	$2,16($30)
+	stq	$3,24($30)
+	stq	$4,32($30)
+	stq	$5,40($30)
+	stq	$6,48($30)
+	stq	$7,56($30)
+	stq	$8,64($30)
+	stq	$9,72($30)
+	stq	$10,80($30)
+	stq	$11,88($30)
+	stq	$12,96($30)
+	stq	$13,104($30)
+	stq	$14,112($30)
+	stq	$15,120($30)
+	.prologue 0
+
+	stq	$30,0($17)	/* save KSP in PCB */
+
+	bis	$30,$30,$20	/* a4 = KSP */
+	br	$17,1f
+
+	ldq	$26,0($30)
+	ldq	$1,8($30)
+	ldq	$2,16($30)
+	ldq	$3,24($30)
+	ldq	$4,32($30)
+	ldq	$5,40($30)
+	ldq	$6,48($30)
+	ldq	$7,56($30)
+	ldq	$8,64($30)
+	ldq	$9,72($30)
+	ldq	$10,80($30)
+	ldq	$11,88($30)
+	ldq	$12,96($30)
+	ldq	$13,104($30)
+	ldq	$14,112($30)
+	ldq	$15,120($30)
+	addq	$30,128,$30
+	ret ($26)
+1:	call_pal PAL_swppal
+	.end	switch_to_osf_pal
+
+	.align 3
+	.globl	tbi
+	.ent	tbi
+tbi:
+	.prologue 0
+	call_pal PAL_tbi
+	ret	($26)
+	.end tbi
+
+	.align 3
+	.globl	halt
+	.ent	halt
+halt:
+	.prologue 0
+	call_pal PAL_halt
+	.end halt
+
+/* $16 - new stack page */
+	.align 3
+	.globl	move_stack
+	.ent	move_stack
+move_stack:
+	.prologue 0
+	lda	$0, 0x1fff($31)
+	and	$0, $30, $1			/* Stack offset */
+	or	$1, $16, $16			/* New stack pointer */
+	mov	$30, $1
+	mov	$16, $2
+1:	ldq	$3, 0($1)			/* Move the stack */
+	addq	$1, 8, $1
+	stq	$3, 0($2)
+	and	$0, $1, $4
+	addq	$2, 8, $2
+	bne	$4, 1b
+	mov	$16, $30
+	ret	($26)
+	.end move_stack

arch/alpha/boot/main.c

@@ -0,0 +1,190 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * arch/alpha/boot/main.c
+ *
+ * Copyright (C) 1994, 1995 Linus Torvalds
+ *
+ * This file is the bootloader for the Linux/AXP kernel
+ */
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <generated/utsrelease.h>
+#include <linux/mm.h>
+
+#include <asm/console.h>
+#include <asm/hwrpb.h>
+
+#include <stdarg.h>
+
+#include "ksize.h"
+
+extern unsigned long switch_to_osf_pal(unsigned long nr,
+	struct pcb_struct * pcb_va, struct pcb_struct * pcb_pa,
+	unsigned long *vptb);
+struct hwrpb_struct *hwrpb = INIT_HWRPB;
+static struct pcb_struct pcb_va[1];
+
+/*
+ * Find a physical address of a virtual object..
+ *
+ * This is easy using the virtual page table address.
+ */
+
+static inline void *
+find_pa(unsigned long *vptb, void *ptr)
+{
+	unsigned long address = (unsigned long) ptr;
+	unsigned long result;
+
+	result = vptb[address >> 13];
+	result >>= 32;
+	result <<= 13;
+	result |= address & 0x1fff;
+	return (void *) result;
+}	
+
+/*
+ * This function moves into OSF/1 pal-code, and has a temporary
+ * PCB for that. The kernel proper should replace this PCB with
+ * the real one as soon as possible.
+ *
+ * The page table muckery in here depends on the fact that the boot
+ * code has the L1 page table identity-map itself in the second PTE
+ * in the L1 page table. Thus the L1-page is virtually addressable
+ * itself (through three levels) at virtual address 0x200802000.
+ */
+
+#define VPTB	((unsigned long *) 0x200000000)
+#define L1	((unsigned long *) 0x200802000)
+
+void
+pal_init(void)
+{
+	unsigned long i, rev;
+	struct percpu_struct * percpu;
+	struct pcb_struct * pcb_pa;
+
+	/* Create the dummy PCB.  */
+	pcb_va->ksp = 0;
+	pcb_va->usp = 0;
+	pcb_va->ptbr = L1[1] >> 32;
+	pcb_va->asn = 0;
+	pcb_va->pcc = 0;
+	pcb_va->unique = 0;
+	pcb_va->flags = 1;
+	pcb_va->res1 = 0;
+	pcb_va->res2 = 0;
+	pcb_pa = find_pa(VPTB, pcb_va);
+
+	/*
+	 * a0 = 2 (OSF)
+	 * a1 = return address, but we give the asm the vaddr of the PCB
+	 * a2 = physical addr of PCB
+	 * a3 = new virtual page table pointer
+	 * a4 = KSP (but the asm sets it)
+	 */
+	srm_printk("Switching to OSF PAL-code .. ");
+
+	i = switch_to_osf_pal(2, pcb_va, pcb_pa, VPTB);
+	if (i) {
+		srm_printk("failed, code %ld\n", i);
+		__halt();
+	}
+
+	percpu = (struct percpu_struct *)
+		(INIT_HWRPB->processor_offset + (unsigned long) INIT_HWRPB);
+	rev = percpu->pal_revision = percpu->palcode_avail[2];
+
+	srm_printk("Ok (rev %lx)\n", rev);
+
+	tbia(); /* do it directly in case we are SMP */
+}
+
+static inline long openboot(void)
+{
+	char bootdev[256];
+	long result;
+
+	result = callback_getenv(ENV_BOOTED_DEV, bootdev, 255);
+	if (result < 0)
+		return result;
+	return callback_open(bootdev, result & 255);
+}
+
+static inline long close(long dev)
+{
+	return callback_close(dev);
+}
+
+static inline long load(long dev, unsigned long addr, unsigned long count)
+{
+	char bootfile[256];
+	extern char _end;
+	long result, boot_size = &_end - (char *) BOOT_ADDR;
+
+	result = callback_getenv(ENV_BOOTED_FILE, bootfile, 255);
+	if (result < 0)
+		return result;
+	result &= 255;
+	bootfile[result] = '\0';
+	if (result)
+		srm_printk("Boot file specification (%s) not implemented\n",
+		       bootfile);
+	return callback_read(dev, count, (void *)addr, boot_size/512 + 1);
+}
+
+/*
+ * Start the kernel.
+ */
+static void runkernel(void)
+{
+	__asm__ __volatile__(
+		"bis %1,%1,$30\n\t"
+		"bis %0,%0,$26\n\t"
+		"ret ($26)"
+		: /* no outputs: it doesn't even return */
+		: "r" (START_ADDR),
+		  "r" (PAGE_SIZE + INIT_STACK));
+}
+
+void start_kernel(void)
+{
+	long i;
+	long dev;
+	int nbytes;
+	char envval[256];
+
+	srm_printk("Linux/AXP bootloader for Linux " UTS_RELEASE "\n");
+	if (INIT_HWRPB->pagesize != 8192) {
+		srm_printk("Expected 8kB pages, got %ldkB\n", INIT_HWRPB->pagesize >> 10);
+		return;
+	}
+	pal_init();
+	dev = openboot();
+	if (dev < 0) {
+		srm_printk("Unable to open boot device: %016lx\n", dev);
+		return;
+	}
+	dev &= 0xffffffff;
+	srm_printk("Loading vmlinux ...");
+	i = load(dev, START_ADDR, KERNEL_SIZE);
+	close(dev);
+	if (i != KERNEL_SIZE) {
+		srm_printk("Failed (%lx)\n", i);
+		return;
+	}
+
+	nbytes = callback_getenv(ENV_BOOTED_OSFLAGS, envval, sizeof(envval));
+	if (nbytes < 0) {
+		nbytes = 0;
+	}
+	envval[nbytes] = '\0';
+	strcpy((char*)ZERO_PGE, envval);
+
+	srm_printk(" Ok\nNow booting the kernel\n");
+	runkernel();
+	for (i = 0 ; i < 0x100000000 ; i++)
+		/* nothing */;
+	__halt();
+}

arch/alpha/boot/misc.c

@@ -0,0 +1,174 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * misc.c
+ * 
+ * This is a collection of several routines from gzip-1.0.3 
+ * adapted for Linux.
+ *
+ * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
+ *
+ * Modified for ARM Linux by Russell King
+ *
+ * Nicolas Pitre <nico@visuaide.com>  1999/04/14 :
+ *  For this code to run directly from Flash, all constant variables must
+ *  be marked with 'const' and all other variables initialized at run-time 
+ *  only.  This way all non constant variables will end up in the bss segment,
+ *  which should point to addresses in RAM and cleared to 0 on start.
+ *  This allows for a much quicker boot time.
+ *
+ * Modified for Alpha, from the ARM version, by Jay Estabrook 2003.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+
+#include <linux/uaccess.h>
+
+#define memzero(s,n)	memset ((s),0,(n))
+#define puts		srm_printk
+extern long srm_printk(const char *, ...)
+     __attribute__ ((format (printf, 1, 2)));
+
+/*
+ * gzip declarations
+ */
+#define OF(args)  args
+#define STATIC static
+
+typedef unsigned char  uch;
+typedef unsigned short ush;
+typedef unsigned long  ulg;
+
+#define WSIZE 0x8000		/* Window size must be at least 32k, */
+				/* and a power of two */
+
+static uch *inbuf;		/* input buffer */
+static uch *window;		/* Sliding window buffer */
+
+static unsigned insize;		/* valid bytes in inbuf */
+static unsigned inptr;		/* index of next byte to be processed in inbuf */
+static unsigned outcnt;		/* bytes in output buffer */
+
+/* gzip flag byte */
+#define ASCII_FLAG   0x01 /* bit 0 set: file probably ascii text */
+#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
+#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
+#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
+#define COMMENT      0x10 /* bit 4 set: file comment present */
+#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
+#define RESERVED     0xC0 /* bit 6,7:   reserved */
+
+#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
+
+/* Diagnostic functions */
+#ifdef DEBUG
+#  define Assert(cond,msg) {if(!(cond)) error(msg);}
+#  define Trace(x) fprintf x
+#  define Tracev(x) {if (verbose) fprintf x ;}
+#  define Tracevv(x) {if (verbose>1) fprintf x ;}
+#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
+#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
+#else
+#  define Assert(cond,msg)
+#  define Trace(x)
+#  define Tracev(x)
+#  define Tracevv(x)
+#  define Tracec(c,x)
+#  define Tracecv(c,x)
+#endif
+
+static int  fill_inbuf(void);
+static void flush_window(void);
+static void error(char *m);
+
+static char *input_data;
+static int  input_data_size;
+
+static uch *output_data;
+static ulg output_ptr;
+static ulg bytes_out;
+
+static void error(char *m);
+static void gzip_mark(void **);
+static void gzip_release(void **);
+
+extern int end;
+static ulg free_mem_ptr;
+static ulg free_mem_end_ptr;
+
+#define HEAP_SIZE 0x3000
+
+#include "../../../lib/inflate.c"
+
+/* ===========================================================================
+ * Fill the input buffer. This is called only when the buffer is empty
+ * and at least one byte is really needed.
+ */
+int fill_inbuf(void)
+{
+	if (insize != 0)
+		error("ran out of input data");
+
+	inbuf = input_data;
+	insize = input_data_size;
+
+	inptr = 1;
+	return inbuf[0];
+}
+
+/* ===========================================================================
+ * Write the output window window[0..outcnt-1] and update crc and bytes_out.
+ * (Used for the decompressed data only.)
+ */
+void flush_window(void)
+{
+	ulg c = crc;
+	unsigned n;
+	uch *in, *out, ch;
+
+	in = window;
+	out = &output_data[output_ptr];
+	for (n = 0; n < outcnt; n++) {
+		ch = *out++ = *in++;
+		c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
+	}
+	crc = c;
+	bytes_out += (ulg)outcnt;
+	output_ptr += (ulg)outcnt;
+	outcnt = 0;
+/*	puts("."); */
+}
+
+static void error(char *x)
+{
+	puts("\n\n");
+	puts(x);
+	puts("\n\n -- System halted");
+
+	while(1);	/* Halt */
+}
+
+unsigned int
+decompress_kernel(void *output_start,
+		  void *input_start,
+		  size_t ksize,
+		  size_t kzsize)
+{
+	output_data		= (uch *)output_start;
+	input_data		= (uch *)input_start;
+	input_data_size		= kzsize; /* use compressed size */
+
+	/* FIXME FIXME FIXME */
+	free_mem_ptr		= (ulg)output_start + ksize;
+	free_mem_end_ptr	= (ulg)output_start + ksize + 0x200000;
+	/* FIXME FIXME FIXME */
+
+	/* put in temp area to reduce initial footprint */
+	window = malloc(WSIZE);
+
+	makecrc();
+/*	puts("Uncompressing Linux..."); */
+	gunzip();
+/*	puts(" done, booting the kernel.\n"); */
+	return output_ptr;
+}

arch/alpha/boot/stdio.c

@@ -0,0 +1,302 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) Paul Mackerras 1997.
+ */
+#include <stdarg.h>
+#include <stddef.h>
+
+size_t strnlen(const char * s, size_t count)
+{
+	const char *sc;
+
+	for (sc = s; count-- && *sc != '\0'; ++sc)
+		/* nothing */;
+	return sc - s;
+}
+
+# define do_div(n, base) ({						\
+	unsigned int __base = (base);					\
+	unsigned int __rem;						\
+	__rem = ((unsigned long long)(n)) % __base;			\
+	(n) = ((unsigned long long)(n)) / __base;			\
+	__rem;								\
+})
+
+
+static int skip_atoi(const char **s)
+{
+	int i, c;
+
+	for (i = 0; '0' <= (c = **s) && c <= '9'; ++*s)
+		i = i*10 + c - '0';
+	return i;
+}
+
+#define ZEROPAD	1		/* pad with zero */
+#define SIGN	2		/* unsigned/signed long */
+#define PLUS	4		/* show plus */
+#define SPACE	8		/* space if plus */
+#define LEFT	16		/* left justified */
+#define SPECIAL	32		/* 0x */
+#define LARGE	64		/* use 'ABCDEF' instead of 'abcdef' */
+
+static char * number(char * str, unsigned long long num, int base, int size, int precision, int type)
+{
+	char c,sign,tmp[66];
+	const char *digits="0123456789abcdefghijklmnopqrstuvwxyz";
+	int i;
+
+	if (type & LARGE)
+		digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+	if (type & LEFT)
+		type &= ~ZEROPAD;
+	if (base < 2 || base > 36)
+		return 0;
+	c = (type & ZEROPAD) ? '0' : ' ';
+	sign = 0;
+	if (type & SIGN) {
+		if ((signed long long)num < 0) {
+			sign = '-';
+			num = - (signed long long)num;
+			size--;
+		} else if (type & PLUS) {
+			sign = '+';
+			size--;
+		} else if (type & SPACE) {
+			sign = ' ';
+			size--;
+		}
+	}
+	if (type & SPECIAL) {
+		if (base == 16)
+			size -= 2;
+		else if (base == 8)
+			size--;
+	}
+	i = 0;
+	if (num == 0)
+		tmp[i++]='0';
+	else while (num != 0) {
+		tmp[i++] = digits[do_div(num, base)];
+	}
+	if (i > precision)
+		precision = i;
+	size -= precision;
+	if (!(type&(ZEROPAD+LEFT)))
+		while(size-->0)
+			*str++ = ' ';
+	if (sign)
+		*str++ = sign;
+	if (type & SPECIAL) {
+		if (base==8)
+			*str++ = '0';
+		else if (base==16) {
+			*str++ = '0';
+			*str++ = digits[33];
+		}
+	}
+	if (!(type & LEFT))
+		while (size-- > 0)
+			*str++ = c;
+	while (i < precision--)
+		*str++ = '0';
+	while (i-- > 0)
+		*str++ = tmp[i];
+	while (size-- > 0)
+		*str++ = ' ';
+	return str;
+}
+
+int vsprintf(char *buf, const char *fmt, va_list args)
+{
+	int len;
+	unsigned long long num;
+	int i, base;
+	char * str;
+	const char *s;
+
+	int flags;		/* flags to number() */
+
+	int field_width;	/* width of output field */
+	int precision;		/* min. # of digits for integers; max
+				   number of chars for from string */
+	int qualifier;		/* 'h', 'l', or 'L' for integer fields */
+	                        /* 'z' support added 23/7/1999 S.H.    */
+				/* 'z' changed to 'Z' --davidm 1/25/99 */
+
+
+	for (str=buf ; *fmt ; ++fmt) {
+		if (*fmt != '%') {
+			*str++ = *fmt;
+			continue;
+		}
+
+		/* process flags */
+		flags = 0;
+		repeat:
+			++fmt;		/* this also skips first '%' */
+			switch (*fmt) {
+				case '-': flags |= LEFT; goto repeat;
+				case '+': flags |= PLUS; goto repeat;
+				case ' ': flags |= SPACE; goto repeat;
+				case '#': flags |= SPECIAL; goto repeat;
+				case '0': flags |= ZEROPAD; goto repeat;
+				}
+
+		/* get field width */
+		field_width = -1;
+		if ('0' <= *fmt && *fmt <= '9')
+			field_width = skip_atoi(&fmt);
+		else if (*fmt == '*') {
+			++fmt;
+			/* it's the next argument */
+			field_width = va_arg(args, int);
+			if (field_width < 0) {
+				field_width = -field_width;
+				flags |= LEFT;
+			}
+		}
+
+		/* get the precision */
+		precision = -1;
+		if (*fmt == '.') {
+			++fmt;
+			if ('0' <= *fmt && *fmt <= '9')
+				precision = skip_atoi(&fmt);
+			else if (*fmt == '*') {
+				++fmt;
+				/* it's the next argument */
+				precision = va_arg(args, int);
+			}
+			if (precision < 0)
+				precision = 0;
+		}
+
+		/* get the conversion qualifier */
+		qualifier = -1;
+		if (*fmt == 'l' && *(fmt + 1) == 'l') {
+			qualifier = 'q';
+			fmt += 2;
+		} else if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L'
+			|| *fmt == 'Z') {
+			qualifier = *fmt;
+			++fmt;
+		}
+
+		/* default base */
+		base = 10;
+
+		switch (*fmt) {
+		case 'c':
+			if (!(flags & LEFT))
+				while (--field_width > 0)
+					*str++ = ' ';
+			*str++ = (unsigned char) va_arg(args, int);
+			while (--field_width > 0)
+				*str++ = ' ';
+			continue;
+
+		case 's':
+			s = va_arg(args, char *);
+			if (!s)
+				s = "<NULL>";
+
+			len = strnlen(s, precision);
+
+			if (!(flags & LEFT))
+				while (len < field_width--)
+					*str++ = ' ';
+			for (i = 0; i < len; ++i)
+				*str++ = *s++;
+			while (len < field_width--)
+				*str++ = ' ';
+			continue;
+
+		case 'p':
+			if (field_width == -1) {
+				field_width = 2*sizeof(void *);
+				flags |= ZEROPAD;
+			}
+			str = number(str,
+				(unsigned long) va_arg(args, void *), 16,
+				field_width, precision, flags);
+			continue;
+
+
+		case 'n':
+			if (qualifier == 'l') {
+				long * ip = va_arg(args, long *);
+				*ip = (str - buf);
+			} else if (qualifier == 'Z') {
+				size_t * ip = va_arg(args, size_t *);
+				*ip = (str - buf);
+			} else {
+				int * ip = va_arg(args, int *);
+				*ip = (str - buf);
+			}
+			continue;
+
+		case '%':
+			*str++ = '%';
+			continue;
+
+		/* integer number formats - set up the flags and "break" */
+		case 'o':
+			base = 8;
+			break;
+
+		case 'X':
+			flags |= LARGE;
+		case 'x':
+			base = 16;
+			break;
+
+		case 'd':
+		case 'i':
+			flags |= SIGN;
+		case 'u':
+			break;
+
+		default:
+			*str++ = '%';
+			if (*fmt)
+				*str++ = *fmt;
+			else
+				--fmt;
+			continue;
+		}
+		if (qualifier == 'l') {
+			num = va_arg(args, unsigned long);
+			if (flags & SIGN)
+				num = (signed long) num;
+		} else if (qualifier == 'q') {
+			num = va_arg(args, unsigned long long);
+			if (flags & SIGN)
+				num = (signed long long) num;
+		} else if (qualifier == 'Z') {
+			num = va_arg(args, size_t);
+		} else if (qualifier == 'h') {
+			num = (unsigned short) va_arg(args, int);
+			if (flags & SIGN)
+				num = (signed short) num;
+		} else {
+			num = va_arg(args, unsigned int);
+			if (flags & SIGN)
+				num = (signed int) num;
+		}
+		str = number(str, num, base, field_width, precision, flags);
+	}
+	*str = '\0';
+	return str-buf;
+}
+
+int sprintf(char * buf, const char *fmt, ...)
+{
+	va_list args;
+	int i;
+
+	va_start(args, fmt);
+	i=vsprintf(buf,fmt,args);
+	va_end(args);
+	return i;
+}

arch/alpha/boot/tools/mkbb.c

@@ -0,0 +1,153 @@
+// SPDX-License-Identifier: GPL-2.0
+/* This utility makes a bootblock suitable for the SRM console/miniloader */
+
+/* Usage:
+ *	mkbb <device> <lxboot>
+ *
+ * Where <device> is the name of the device to install the bootblock on,
+ * and <lxboot> is the name of a bootblock to merge in.  This bootblock
+ * contains the offset and size of the bootloader.  It must be exactly
+ * 512 bytes long.
+ */
+
+#include <fcntl.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+/* Minimal definition of disklabel, so we don't have to include
+ * asm/disklabel.h (confuses make)
+ */
+#ifndef MAXPARTITIONS
+#define MAXPARTITIONS   8                       /* max. # of partitions */
+#endif
+
+#ifndef u8
+#define u8 unsigned char
+#endif
+
+#ifndef u16
+#define u16 unsigned short
+#endif
+
+#ifndef u32
+#define u32 unsigned int
+#endif
+
+struct disklabel {
+    u32	d_magic;				/* must be DISKLABELMAGIC */
+    u16	d_type, d_subtype;
+    u8	d_typename[16];
+    u8	d_packname[16];
+    u32	d_secsize;
+    u32	d_nsectors;
+    u32	d_ntracks;
+    u32	d_ncylinders;
+    u32	d_secpercyl;
+    u32	d_secprtunit;
+    u16	d_sparespertrack;
+    u16	d_sparespercyl;
+    u32	d_acylinders;
+    u16	d_rpm, d_interleave, d_trackskew, d_cylskew;
+    u32	d_headswitch, d_trkseek, d_flags;
+    u32	d_drivedata[5];
+    u32	d_spare[5];
+    u32	d_magic2;				/* must be DISKLABELMAGIC */
+    u16	d_checksum;
+    u16	d_npartitions;
+    u32	d_bbsize, d_sbsize;
+    struct d_partition {
+	u32	p_size;
+	u32	p_offset;
+	u32	p_fsize;
+	u8	p_fstype;
+	u8	p_frag;
+	u16	p_cpg;
+    } d_partitions[MAXPARTITIONS];
+};
+
+
+typedef union __bootblock {
+    struct {
+        char			__pad1[64];
+        struct disklabel	__label;
+    } __u1;
+    struct {
+	unsigned long		__pad2[63];
+	unsigned long		__checksum;
+    } __u2;
+    char		bootblock_bytes[512];
+    unsigned long	bootblock_quadwords[64];
+} bootblock;
+
+#define	bootblock_label		__u1.__label
+#define bootblock_checksum	__u2.__checksum
+
+int main(int argc, char ** argv)
+{
+    bootblock		bootblock_from_disk;
+    bootblock		bootloader_image;
+    int			dev, fd;
+    int			i;
+    int			nread;
+
+    /* Make sure of the arg count */
+    if(argc != 3) {
+	fprintf(stderr, "Usage: %s device lxboot\n", argv[0]);
+	exit(0);
+    }
+
+    /* First, open the device and make sure it's accessible */
+    dev = open(argv[1], O_RDWR);
+    if(dev < 0) {
+	perror(argv[1]);
+	exit(0);
+    }
+
+    /* Now open the lxboot and make sure it's reasonable */
+    fd = open(argv[2], O_RDONLY);
+    if(fd < 0) {
+	perror(argv[2]);
+	close(dev);
+	exit(0);
+    }
+
+    /* Read in the lxboot */
+    nread = read(fd, &bootloader_image, sizeof(bootblock));
+    if(nread != sizeof(bootblock)) {
+	perror("lxboot read");
+	fprintf(stderr, "expected %zd, got %d\n", sizeof(bootblock), nread);
+	exit(0);
+    }
+
+    /* Read in the bootblock from disk. */
+    nread = read(dev, &bootblock_from_disk, sizeof(bootblock));
+    if(nread != sizeof(bootblock)) {
+	perror("bootblock read");
+	fprintf(stderr, "expected %zd, got %d\n", sizeof(bootblock), nread);
+	exit(0);
+    }
+
+    /* Swap the bootblock's disklabel into the bootloader */
+    bootloader_image.bootblock_label = bootblock_from_disk.bootblock_label;
+
+    /* Calculate the bootblock checksum */
+    bootloader_image.bootblock_checksum = 0;
+    for(i = 0; i < 63; i++) {
+	bootloader_image.bootblock_checksum += 
+			bootloader_image.bootblock_quadwords[i];
+    }
+
+    /* Write the whole thing out! */
+    lseek(dev, 0L, SEEK_SET);
+    if(write(dev, &bootloader_image, sizeof(bootblock)) != sizeof(bootblock)) {
+	perror("bootblock write");
+	exit(0);
+    }
+
+    close(fd);
+    close(dev);
+    exit(0);
+}
+
+

arch/alpha/boot/tools/objstrip.c

@@ -0,0 +1,284 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * arch/alpha/boot/tools/objstrip.c
+ *
+ * Strip the object file headers/trailers from an executable (ELF or ECOFF).
+ *
+ * Copyright (C) 1996 David Mosberger-Tang.
+ */
+/*
+ * Converts an ECOFF or ELF object file into a bootable file.  The
+ * object file must be a OMAGIC file (i.e., data and bss follow immediately
+ * behind the text).  See DEC "Assembly Language Programmer's Guide"
+ * documentation for details.  The SRM boot process is documented in
+ * the Alpha AXP Architecture Reference Manual, Second Edition by
+ * Richard L. Sites and Richard T. Witek.
+ */
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include <sys/fcntl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <linux/a.out.h>
+#include <linux/coff.h>
+#include <linux/param.h>
+#ifdef __ELF__
+# include <linux/elf.h>
+# define elfhdr elf64_hdr
+# define elf_phdr elf64_phdr
+# define elf_check_arch(x) ((x)->e_machine == EM_ALPHA)
+#endif
+
+/* bootfile size must be multiple of BLOCK_SIZE: */
+#define BLOCK_SIZE	512
+
+const char * prog_name;
+
+
+static void
+usage (void)
+{
+    fprintf(stderr,
+	    "usage: %s [-v] -p file primary\n"
+	    "       %s [-vb] file [secondary]\n", prog_name, prog_name);
+    exit(1);
+}
+
+
+int
+main (int argc, char *argv[])
+{
+    size_t nwritten, tocopy, n, mem_size, fil_size, pad = 0;
+    int fd, ofd, i, j, verbose = 0, primary = 0;
+    char buf[8192], *inname;
+    struct exec * aout;		/* includes file & aout header */
+    long offset;
+#ifdef __ELF__
+    struct elfhdr *elf;
+    struct elf_phdr *elf_phdr;	/* program header */
+    unsigned long long e_entry;
+#endif
+
+    prog_name = argv[0];
+
+    for (i = 1; i < argc && argv[i][0] == '-'; ++i) {
+	for (j = 1; argv[i][j]; ++j) {
+	    switch (argv[i][j]) {
+	      case 'v':
+		  verbose = ~verbose;
+		  break;
+
+	      case 'b':
+		  pad = BLOCK_SIZE;
+		  break;
+
+	      case 'p':
+		  primary = 1;		/* make primary bootblock */
+		  break;
+	    }
+	}
+    }
+
+    if (i >= argc) {
+	usage();
+    }
+    inname = argv[i++];
+
+    fd = open(inname, O_RDONLY);
+    if (fd == -1) {
+	perror("open");
+	exit(1);
+    }
+
+    ofd = 1;
+    if (i < argc) {
+	ofd = open(argv[i++], O_WRONLY | O_CREAT | O_TRUNC, 0666);
+	if (ofd == -1) {
+	    perror("open");
+	    exit(1);
+	}
+    }
+
+    if (primary) {
+	/* generate bootblock for primary loader */
+	
+	unsigned long bb[64], sum = 0;
+	struct stat st;
+	off_t size;
+	int i;
+
+	if (ofd == 1) {
+	    usage();
+	}
+
+	if (fstat(fd, &st) == -1) {
+	    perror("fstat");
+	    exit(1);
+	}
+
+	size = (st.st_size + BLOCK_SIZE - 1) & ~(BLOCK_SIZE - 1);
+	memset(bb, 0, sizeof(bb));
+	strcpy((char *) bb, "Linux SRM bootblock");
+	bb[60] = size / BLOCK_SIZE;	/* count */
+	bb[61] = 1;			/* starting sector # */
+	bb[62] = 0;			/* flags---must be 0 */
+	for (i = 0; i < 63; ++i) {
+	    sum += bb[i];
+	}
+	bb[63] = sum;
+	if (write(ofd, bb, sizeof(bb)) != sizeof(bb)) {
+	    perror("boot-block write");
+	    exit(1);
+	}
+	printf("%lu\n", size);
+	return 0;
+    }
+
+    /* read and inspect exec header: */
+
+    if (read(fd, buf, sizeof(buf)) < 0) {
+	perror("read");
+	exit(1);
+    }
+
+#ifdef __ELF__
+    elf = (struct elfhdr *) buf;
+
+    if (elf->e_ident[0] == 0x7f && str_has_prefix((char *)elf->e_ident + 1, "ELF")) {
+	if (elf->e_type != ET_EXEC) {
+	    fprintf(stderr, "%s: %s is not an ELF executable\n",
+		    prog_name, inname);
+	    exit(1);
+	}
+	if (!elf_check_arch(elf)) {
+	    fprintf(stderr, "%s: is not for this processor (e_machine=%d)\n",
+		    prog_name, elf->e_machine);
+	    exit(1);
+	}
+	if (elf->e_phnum != 1) {
+	    fprintf(stderr,
+		    "%s: %d program headers (forgot to link with -N?)\n",
+		    prog_name, elf->e_phnum);
+	}
+
+	e_entry = elf->e_entry;
+
+	lseek(fd, elf->e_phoff, SEEK_SET);
+	if (read(fd, buf, sizeof(*elf_phdr)) != sizeof(*elf_phdr)) {
+	    perror("read");
+	    exit(1);
+	}
+
+	elf_phdr = (struct elf_phdr *) buf;
+	offset	 = elf_phdr->p_offset;
+	mem_size = elf_phdr->p_memsz;
+	fil_size = elf_phdr->p_filesz;
+
+	/* work around ELF bug: */
+	if (elf_phdr->p_vaddr < e_entry) {
+	    unsigned long delta = e_entry - elf_phdr->p_vaddr;
+	    offset   += delta;
+	    mem_size -= delta;
+	    fil_size -= delta;
+	    elf_phdr->p_vaddr += delta;
+	}
+
+	if (verbose) {
+	    fprintf(stderr, "%s: extracting %#016lx-%#016lx (at %lx)\n",
+		    prog_name, (long) elf_phdr->p_vaddr,
+		    elf_phdr->p_vaddr + fil_size, offset);
+	}
+    } else
+#endif
+    {
+	aout = (struct exec *) buf;
+
+	if (!(aout->fh.f_flags & COFF_F_EXEC)) {
+	    fprintf(stderr, "%s: %s is not in executable format\n",
+		    prog_name, inname);
+	    exit(1);
+	}
+
+	if (aout->fh.f_opthdr != sizeof(aout->ah)) {
+	    fprintf(stderr, "%s: %s has unexpected optional header size\n",
+		    prog_name, inname);
+	    exit(1);
+	}
+
+	if (N_MAGIC(*aout) != OMAGIC) {
+	    fprintf(stderr, "%s: %s is not an OMAGIC file\n",
+		    prog_name, inname);
+	    exit(1);
+	}
+	offset = N_TXTOFF(*aout);
+	fil_size = aout->ah.tsize + aout->ah.dsize;
+	mem_size = fil_size + aout->ah.bsize;
+
+	if (verbose) {
+	    fprintf(stderr, "%s: extracting %#016lx-%#016lx (at %lx)\n",
+		    prog_name, aout->ah.text_start,
+		    aout->ah.text_start + fil_size, offset);
+	}
+    }
+
+    if (lseek(fd, offset, SEEK_SET) != offset) {
+	perror("lseek");
+	exit(1);
+    }
+
+    if (verbose) {
+	fprintf(stderr, "%s: copying %lu byte from %s\n",
+		prog_name, (unsigned long) fil_size, inname);
+    }
+
+    tocopy = fil_size;
+    while (tocopy > 0) {
+	n = tocopy;
+	if (n > sizeof(buf)) {
+	    n = sizeof(buf);
+	}
+	tocopy -= n;
+	if ((size_t) read(fd, buf, n) != n) {
+	    perror("read");
+	    exit(1);
+	}
+	do {
+	    nwritten = write(ofd, buf, n);
+	    if ((ssize_t) nwritten == -1) {
+		perror("write");
+		exit(1);
+	    }
+	    n -= nwritten;
+	} while (n > 0);
+    }
+
+    if (pad) {
+	mem_size = ((mem_size + pad - 1) / pad) * pad;
+    }
+
+    tocopy = mem_size - fil_size;
+    if (tocopy > 0) {
+	fprintf(stderr,
+		"%s: zero-filling bss and aligning to %lu with %lu bytes\n",
+		prog_name, pad, (unsigned long) tocopy);
+
+	memset(buf, 0x00, sizeof(buf));
+	do {
+	    n = tocopy;
+	    if (n > sizeof(buf)) {
+		n = sizeof(buf);
+	    }
+	    nwritten = write(ofd, buf, n);
+	    if ((ssize_t) nwritten == -1) {
+		perror("write");
+		exit(1);
+	    }
+	    tocopy -= nwritten;
+	} while (tocopy > 0);
+    }
+    return 0;
+}

arch/alpha/configs/defconfig

@@ -0,0 +1,73 @@
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_KALLSYMS_ALL=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_VERBOSE_MCHECK=y
+CONFIG_SRM_ENV=m
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_XFRM_USER=m
+CONFIG_NET_KEY=m
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
+# CONFIG_IPV6 is not set
+CONFIG_NETFILTER=y
+CONFIG_IP_NF_IPTABLES=m
+CONFIG_IP_NF_FILTER=m
+CONFIG_VLAN_8021Q=m
+CONFIG_PNP=y
+CONFIG_ISAPNP=y
+CONFIG_BLK_DEV_FD=y
+CONFIG_BLK_DEV_LOOP=m
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_BLK_DEV_SR=y
+CONFIG_SCSI_AIC7XXX=m
+CONFIG_AIC7XXX_CMDS_PER_DEVICE=253
+# CONFIG_AIC7XXX_DEBUG_ENABLE is not set
+CONFIG_ATA=y
+# CONFIG_SATA_PMP is not set
+CONFIG_PATA_ALI=y
+CONFIG_PATA_CMD64X=y
+CONFIG_PATA_CYPRESS=y
+CONFIG_ATA_GENERIC=y
+CONFIG_NETDEVICES=y
+CONFIG_DUMMY=m
+CONFIG_NET_ETHERNET=y
+CONFIG_NET_VENDOR_3COM=y
+CONFIG_VORTEX=y
+CONFIG_NET_TULIP=y
+CONFIG_DE2104X=m
+CONFIG_TULIP=y
+CONFIG_TULIP_MMIO=y
+CONFIG_NET_PCI=y
+CONFIG_YELLOWFIN=y
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_CMOS=y
+CONFIG_EXT2_FS=y
+CONFIG_REISERFS_FS=m
+CONFIG_ISO9660_FS=y
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_NFS_FS=m
+CONFIG_NFS_V3=y
+CONFIG_NFSD=m
+CONFIG_NFSD_V3=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_INFO=y
+CONFIG_ALPHA_LEGACY_START_ADDRESS=y
+CONFIG_MATHEMU=y
+CONFIG_CRYPTO_HMAC=y
+CONFIG_DEVTMPFS=y

arch/alpha/include/asm/Kbuild

@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+
+generated-y += syscall_table.h
+generic-y += export.h
+generic-y += kvm_para.h
+generic-y += mcs_spinlock.h

arch/alpha/include/asm/a.out.h

@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_A_OUT_H__
+#define __ALPHA_A_OUT_H__
+
+#include <uapi/asm/a.out.h>
+
+
+/* Assume that start addresses below 4G belong to a TASO application.
+   Unfortunately, there is no proper bit in the exec header to check.
+   Worse, we have to notice the start address before swapping to use
+   /sbin/loader, which of course is _not_ a TASO application.  */
+#define SET_AOUT_PERSONALITY(BFPM, EX) \
+	set_personality (((BFPM->taso || EX.ah.entry < 0x100000000L \
+			   ? ADDR_LIMIT_32BIT : 0) | PER_OSF4))
+
+#endif /* __A_OUT_GNU_H__ */

arch/alpha/include/asm/agp.h

@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef AGP_H
+#define AGP_H 1
+
+#include <asm/io.h>
+
+/* dummy for now */
+
+#define map_page_into_agp(page)		do { } while (0)
+#define unmap_page_from_agp(page)	do { } while (0)
+#define flush_agp_cache() mb()
+
+/* GATT allocation. Returns/accepts GATT kernel virtual address. */
+#define alloc_gatt_pages(order)		\
+	((char *)__get_free_pages(GFP_KERNEL, (order)))
+#define free_gatt_pages(table, order)	\
+	free_pages((unsigned long)(table), (order))
+
+#endif

arch/alpha/include/asm/agp_backend.h

@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_AGP_BACKEND_H
+#define _ALPHA_AGP_BACKEND_H 1
+
+typedef	union _alpha_agp_mode {
+	struct {
+		u32 rate : 3;
+		u32 reserved0 : 1;
+		u32 fw : 1;
+		u32 fourgb : 1;
+		u32 reserved1 : 2;
+		u32 enable : 1;
+		u32 sba : 1;
+		u32 reserved2 : 14;
+		u32 rq : 8;
+	} bits;
+	u32 lw;
+} alpha_agp_mode;
+
+typedef struct _alpha_agp_info {
+	struct pci_controller *hose;
+	struct {
+		dma_addr_t bus_base;
+		unsigned long size;
+		void *sysdata;
+	} aperture;
+	alpha_agp_mode capability;
+	alpha_agp_mode mode;
+	void *private;
+	struct alpha_agp_ops *ops;
+} alpha_agp_info;
+
+struct alpha_agp_ops {
+	int (*setup)(alpha_agp_info *);
+	void (*cleanup)(alpha_agp_info *);
+	int (*configure)(alpha_agp_info *);
+	int (*bind)(alpha_agp_info *, off_t, struct agp_memory *);
+	int (*unbind)(alpha_agp_info *, off_t, struct agp_memory *);
+	unsigned long (*translate)(alpha_agp_info *, dma_addr_t);
+};
+
+
+#endif /* _ALPHA_AGP_BACKEND_H */

arch/alpha/include/asm/asm-offsets.h

@@ -0,0 +1 @@
+#include <generated/asm-offsets.h>

arch/alpha/include/asm/asm-prototypes.h

@@ -0,0 +1,19 @@
+#include <linux/spinlock.h>
+
+#include <asm/checksum.h>
+#include <asm/console.h>
+#include <asm/page.h>
+#include <asm/string.h>
+#include <linux/uaccess.h>
+
+#include <asm-generic/asm-prototypes.h>
+
+extern void __divl(void);
+extern void __reml(void);
+extern void __divq(void);
+extern void __remq(void);
+extern void __divlu(void);
+extern void __remlu(void);
+extern void __divqu(void);
+extern void __remqu(void);
+extern unsigned long __udiv_qrnnd(unsigned long *, unsigned long, unsigned long , unsigned long);

arch/alpha/include/asm/atomic.h

@@ -0,0 +1,306 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_ATOMIC_H
+#define _ALPHA_ATOMIC_H
+
+#include <linux/types.h>
+#include <asm/barrier.h>
+#include <asm/cmpxchg.h>
+
+/*
+ * Atomic operations that C can't guarantee us.  Useful for
+ * resource counting etc...
+ *
+ * But use these as seldom as possible since they are much slower
+ * than regular operations.
+ */
+
+/*
+ * To ensure dependency ordering is preserved for the _relaxed and
+ * _release atomics, an smp_mb() is unconditionally inserted into the
+ * _relaxed variants, which are used to build the barriered versions.
+ * Avoid redundant back-to-back fences in the _acquire and _fence
+ * versions.
+ */
+#define __atomic_acquire_fence()
+#define __atomic_post_full_fence()
+
+#define ATOMIC64_INIT(i)	{ (i) }
+
+#define arch_atomic_read(v)	READ_ONCE((v)->counter)
+#define arch_atomic64_read(v)	READ_ONCE((v)->counter)
+
+#define arch_atomic_set(v,i)	WRITE_ONCE((v)->counter, (i))
+#define arch_atomic64_set(v,i)	WRITE_ONCE((v)->counter, (i))
+
+/*
+ * To get proper branch prediction for the main line, we must branch
+ * forward to code at the end of this object's .text section, then
+ * branch back to restart the operation.
+ */
+
+#define ATOMIC_OP(op, asm_op)						\
+static __inline__ void arch_atomic_##op(int i, atomic_t * v)		\
+{									\
+	unsigned long temp;						\
+	__asm__ __volatile__(						\
+	"1:	ldl_l %0,%1\n"						\
+	"	" #asm_op " %0,%2,%0\n"					\
+	"	stl_c %0,%1\n"						\
+	"	beq %0,2f\n"						\
+	".subsection 2\n"						\
+	"2:	br 1b\n"						\
+	".previous"							\
+	:"=&r" (temp), "=m" (v->counter)				\
+	:"Ir" (i), "m" (v->counter));					\
+}									\
+
+#define ATOMIC_OP_RETURN(op, asm_op)					\
+static inline int arch_atomic_##op##_return_relaxed(int i, atomic_t *v)	\
+{									\
+	long temp, result;						\
+	__asm__ __volatile__(						\
+	"1:	ldl_l %0,%1\n"						\
+	"	" #asm_op " %0,%3,%2\n"					\
+	"	" #asm_op " %0,%3,%0\n"					\
+	"	stl_c %0,%1\n"						\
+	"	beq %0,2f\n"						\
+	".subsection 2\n"						\
+	"2:	br 1b\n"						\
+	".previous"							\
+	:"=&r" (temp), "=m" (v->counter), "=&r" (result)		\
+	:"Ir" (i), "m" (v->counter) : "memory");			\
+	smp_mb();							\
+	return result;							\
+}
+
+#define ATOMIC_FETCH_OP(op, asm_op)					\
+static inline int arch_atomic_fetch_##op##_relaxed(int i, atomic_t *v)	\
+{									\
+	long temp, result;						\
+	__asm__ __volatile__(						\
+	"1:	ldl_l %2,%1\n"						\
+	"	" #asm_op " %2,%3,%0\n"					\
+	"	stl_c %0,%1\n"						\
+	"	beq %0,2f\n"						\
+	".subsection 2\n"						\
+	"2:	br 1b\n"						\
+	".previous"							\
+	:"=&r" (temp), "=m" (v->counter), "=&r" (result)		\
+	:"Ir" (i), "m" (v->counter) : "memory");			\
+	smp_mb();							\
+	return result;							\
+}
+
+#define ATOMIC64_OP(op, asm_op)						\
+static __inline__ void arch_atomic64_##op(s64 i, atomic64_t * v)	\
+{									\
+	s64 temp;							\
+	__asm__ __volatile__(						\
+	"1:	ldq_l %0,%1\n"						\
+	"	" #asm_op " %0,%2,%0\n"					\
+	"	stq_c %0,%1\n"						\
+	"	beq %0,2f\n"						\
+	".subsection 2\n"						\
+	"2:	br 1b\n"						\
+	".previous"							\
+	:"=&r" (temp), "=m" (v->counter)				\
+	:"Ir" (i), "m" (v->counter));					\
+}									\
+
+#define ATOMIC64_OP_RETURN(op, asm_op)					\
+static __inline__ s64							\
+arch_atomic64_##op##_return_relaxed(s64 i, atomic64_t * v)		\
+{									\
+	s64 temp, result;						\
+	__asm__ __volatile__(						\
+	"1:	ldq_l %0,%1\n"						\
+	"	" #asm_op " %0,%3,%2\n"					\
+	"	" #asm_op " %0,%3,%0\n"					\
+	"	stq_c %0,%1\n"						\
+	"	beq %0,2f\n"						\
+	".subsection 2\n"						\
+	"2:	br 1b\n"						\
+	".previous"							\
+	:"=&r" (temp), "=m" (v->counter), "=&r" (result)		\
+	:"Ir" (i), "m" (v->counter) : "memory");			\
+	smp_mb();							\
+	return result;							\
+}
+
+#define ATOMIC64_FETCH_OP(op, asm_op)					\
+static __inline__ s64							\
+arch_atomic64_fetch_##op##_relaxed(s64 i, atomic64_t * v)		\
+{									\
+	s64 temp, result;						\
+	__asm__ __volatile__(						\
+	"1:	ldq_l %2,%1\n"						\
+	"	" #asm_op " %2,%3,%0\n"					\
+	"	stq_c %0,%1\n"						\
+	"	beq %0,2f\n"						\
+	".subsection 2\n"						\
+	"2:	br 1b\n"						\
+	".previous"							\
+	:"=&r" (temp), "=m" (v->counter), "=&r" (result)		\
+	:"Ir" (i), "m" (v->counter) : "memory");			\
+	smp_mb();							\
+	return result;							\
+}
+
+#define ATOMIC_OPS(op)							\
+	ATOMIC_OP(op, op##l)						\
+	ATOMIC_OP_RETURN(op, op##l)					\
+	ATOMIC_FETCH_OP(op, op##l)					\
+	ATOMIC64_OP(op, op##q)						\
+	ATOMIC64_OP_RETURN(op, op##q)					\
+	ATOMIC64_FETCH_OP(op, op##q)
+
+ATOMIC_OPS(add)
+ATOMIC_OPS(sub)
+
+#define arch_atomic_add_return_relaxed		arch_atomic_add_return_relaxed
+#define arch_atomic_sub_return_relaxed		arch_atomic_sub_return_relaxed
+#define arch_atomic_fetch_add_relaxed		arch_atomic_fetch_add_relaxed
+#define arch_atomic_fetch_sub_relaxed		arch_atomic_fetch_sub_relaxed
+
+#define arch_atomic64_add_return_relaxed	arch_atomic64_add_return_relaxed
+#define arch_atomic64_sub_return_relaxed	arch_atomic64_sub_return_relaxed
+#define arch_atomic64_fetch_add_relaxed		arch_atomic64_fetch_add_relaxed
+#define arch_atomic64_fetch_sub_relaxed		arch_atomic64_fetch_sub_relaxed
+
+#define arch_atomic_andnot			arch_atomic_andnot
+#define arch_atomic64_andnot			arch_atomic64_andnot
+
+#undef ATOMIC_OPS
+#define ATOMIC_OPS(op, asm)						\
+	ATOMIC_OP(op, asm)						\
+	ATOMIC_FETCH_OP(op, asm)					\
+	ATOMIC64_OP(op, asm)						\
+	ATOMIC64_FETCH_OP(op, asm)
+
+ATOMIC_OPS(and, and)
+ATOMIC_OPS(andnot, bic)
+ATOMIC_OPS(or, bis)
+ATOMIC_OPS(xor, xor)
+
+#define arch_atomic_fetch_and_relaxed		arch_atomic_fetch_and_relaxed
+#define arch_atomic_fetch_andnot_relaxed	arch_atomic_fetch_andnot_relaxed
+#define arch_atomic_fetch_or_relaxed		arch_atomic_fetch_or_relaxed
+#define arch_atomic_fetch_xor_relaxed		arch_atomic_fetch_xor_relaxed
+
+#define arch_atomic64_fetch_and_relaxed		arch_atomic64_fetch_and_relaxed
+#define arch_atomic64_fetch_andnot_relaxed	arch_atomic64_fetch_andnot_relaxed
+#define arch_atomic64_fetch_or_relaxed		arch_atomic64_fetch_or_relaxed
+#define arch_atomic64_fetch_xor_relaxed		arch_atomic64_fetch_xor_relaxed
+
+#undef ATOMIC_OPS
+#undef ATOMIC64_FETCH_OP
+#undef ATOMIC64_OP_RETURN
+#undef ATOMIC64_OP
+#undef ATOMIC_FETCH_OP
+#undef ATOMIC_OP_RETURN
+#undef ATOMIC_OP
+
+#define arch_atomic64_cmpxchg(v, old, new) \
+	(arch_cmpxchg(&((v)->counter), old, new))
+#define arch_atomic64_xchg(v, new) \
+	(arch_xchg(&((v)->counter), new))
+
+#define arch_atomic_cmpxchg(v, old, new) \
+	(arch_cmpxchg(&((v)->counter), old, new))
+#define arch_atomic_xchg(v, new) \
+	(arch_xchg(&((v)->counter), new))
+
+/**
+ * arch_atomic_fetch_add_unless - add unless the number is a given value
+ * @v: pointer of type atomic_t
+ * @a: the amount to add to v...
+ * @u: ...unless v is equal to u.
+ *
+ * Atomically adds @a to @v, so long as it was not @u.
+ * Returns the old value of @v.
+ */
+static __inline__ int arch_atomic_fetch_add_unless(atomic_t *v, int a, int u)
+{
+	int c, new, old;
+	smp_mb();
+	__asm__ __volatile__(
+	"1:	ldl_l	%[old],%[mem]\n"
+	"	cmpeq	%[old],%[u],%[c]\n"
+	"	addl	%[old],%[a],%[new]\n"
+	"	bne	%[c],2f\n"
+	"	stl_c	%[new],%[mem]\n"
+	"	beq	%[new],3f\n"
+	"2:\n"
+	".subsection 2\n"
+	"3:	br	1b\n"
+	".previous"
+	: [old] "=&r"(old), [new] "=&r"(new), [c] "=&r"(c)
+	: [mem] "m"(*v), [a] "rI"(a), [u] "rI"((long)u)
+	: "memory");
+	smp_mb();
+	return old;
+}
+#define arch_atomic_fetch_add_unless arch_atomic_fetch_add_unless
+
+/**
+ * arch_atomic64_fetch_add_unless - add unless the number is a given value
+ * @v: pointer of type atomic64_t
+ * @a: the amount to add to v...
+ * @u: ...unless v is equal to u.
+ *
+ * Atomically adds @a to @v, so long as it was not @u.
+ * Returns the old value of @v.
+ */
+static __inline__ s64 arch_atomic64_fetch_add_unless(atomic64_t *v, s64 a, s64 u)
+{
+	s64 c, new, old;
+	smp_mb();
+	__asm__ __volatile__(
+	"1:	ldq_l	%[old],%[mem]\n"
+	"	cmpeq	%[old],%[u],%[c]\n"
+	"	addq	%[old],%[a],%[new]\n"
+	"	bne	%[c],2f\n"
+	"	stq_c	%[new],%[mem]\n"
+	"	beq	%[new],3f\n"
+	"2:\n"
+	".subsection 2\n"
+	"3:	br	1b\n"
+	".previous"
+	: [old] "=&r"(old), [new] "=&r"(new), [c] "=&r"(c)
+	: [mem] "m"(*v), [a] "rI"(a), [u] "rI"(u)
+	: "memory");
+	smp_mb();
+	return old;
+}
+#define arch_atomic64_fetch_add_unless arch_atomic64_fetch_add_unless
+
+/*
+ * arch_atomic64_dec_if_positive - decrement by 1 if old value positive
+ * @v: pointer of type atomic_t
+ *
+ * The function returns the old value of *v minus 1, even if
+ * the atomic variable, v, was not decremented.
+ */
+static inline s64 arch_atomic64_dec_if_positive(atomic64_t *v)
+{
+	s64 old, tmp;
+	smp_mb();
+	__asm__ __volatile__(
+	"1:	ldq_l	%[old],%[mem]\n"
+	"	subq	%[old],1,%[tmp]\n"
+	"	ble	%[old],2f\n"
+	"	stq_c	%[tmp],%[mem]\n"
+	"	beq	%[tmp],3f\n"
+	"2:\n"
+	".subsection 2\n"
+	"3:	br	1b\n"
+	".previous"
+	: [old] "=&r"(old), [tmp] "=&r"(tmp)
+	: [mem] "m"(*v)
+	: "memory");
+	smp_mb();
+	return old - 1;
+}
+#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive
+
+#endif /* _ALPHA_ATOMIC_H */

arch/alpha/include/asm/barrier.h

@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __BARRIER_H
+#define __BARRIER_H
+
+#define mb()	__asm__ __volatile__("mb": : :"memory")
+#define rmb()	__asm__ __volatile__("mb": : :"memory")
+#define wmb()	__asm__ __volatile__("wmb": : :"memory")
+
+#define __smp_load_acquire(p)						\
+({									\
+	compiletime_assert_atomic_type(*p);				\
+	__READ_ONCE(*p);						\
+})
+
+#ifdef CONFIG_SMP
+#define __ASM_SMP_MB	"\tmb\n"
+#else
+#define __ASM_SMP_MB
+#endif
+
+#include <asm-generic/barrier.h>
+
+#endif		/* __BARRIER_H */

arch/alpha/include/asm/bitops.h

@@ -0,0 +1,459 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_BITOPS_H
+#define _ALPHA_BITOPS_H
+
+#ifndef _LINUX_BITOPS_H
+#error only <linux/bitops.h> can be included directly
+#endif
+
+#include <asm/compiler.h>
+#include <asm/barrier.h>
+
+/*
+ * Copyright 1994, Linus Torvalds.
+ */
+
+/*
+ * These have to be done with inline assembly: that way the bit-setting
+ * is guaranteed to be atomic. All bit operations return 0 if the bit
+ * was cleared before the operation and != 0 if it was not.
+ *
+ * To get proper branch prediction for the main line, we must branch
+ * forward to code at the end of this object's .text section, then
+ * branch back to restart the operation.
+ *
+ * bit 0 is the LSB of addr; bit 64 is the LSB of (addr+1).
+ */
+
+static inline void
+set_bit(unsigned long nr, volatile void * addr)
+{
+	unsigned long temp;
+	int *m = ((int *) addr) + (nr >> 5);
+
+	__asm__ __volatile__(
+	"1:	ldl_l %0,%3\n"
+	"	bis %0,%2,%0\n"
+	"	stl_c %0,%1\n"
+	"	beq %0,2f\n"
+	".subsection 2\n"
+	"2:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (*m)
+	:"Ir" (1UL << (nr & 31)), "m" (*m));
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static inline void
+__set_bit(unsigned long nr, volatile void * addr)
+{
+	int *m = ((int *) addr) + (nr >> 5);
+
+	*m |= 1 << (nr & 31);
+}
+
+static inline void
+clear_bit(unsigned long nr, volatile void * addr)
+{
+	unsigned long temp;
+	int *m = ((int *) addr) + (nr >> 5);
+
+	__asm__ __volatile__(
+	"1:	ldl_l %0,%3\n"
+	"	bic %0,%2,%0\n"
+	"	stl_c %0,%1\n"
+	"	beq %0,2f\n"
+	".subsection 2\n"
+	"2:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (*m)
+	:"Ir" (1UL << (nr & 31)), "m" (*m));
+}
+
+static inline void
+clear_bit_unlock(unsigned long nr, volatile void * addr)
+{
+	smp_mb();
+	clear_bit(nr, addr);
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static __inline__ void
+__clear_bit(unsigned long nr, volatile void * addr)
+{
+	int *m = ((int *) addr) + (nr >> 5);
+
+	*m &= ~(1 << (nr & 31));
+}
+
+static inline void
+__clear_bit_unlock(unsigned long nr, volatile void * addr)
+{
+	smp_mb();
+	__clear_bit(nr, addr);
+}
+
+static inline void
+change_bit(unsigned long nr, volatile void * addr)
+{
+	unsigned long temp;
+	int *m = ((int *) addr) + (nr >> 5);
+
+	__asm__ __volatile__(
+	"1:	ldl_l %0,%3\n"
+	"	xor %0,%2,%0\n"
+	"	stl_c %0,%1\n"
+	"	beq %0,2f\n"
+	".subsection 2\n"
+	"2:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (*m)
+	:"Ir" (1UL << (nr & 31)), "m" (*m));
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static __inline__ void
+__change_bit(unsigned long nr, volatile void * addr)
+{
+	int *m = ((int *) addr) + (nr >> 5);
+
+	*m ^= 1 << (nr & 31);
+}
+
+static inline int
+test_and_set_bit(unsigned long nr, volatile void *addr)
+{
+	unsigned long oldbit;
+	unsigned long temp;
+	int *m = ((int *) addr) + (nr >> 5);
+
+	__asm__ __volatile__(
+#ifdef CONFIG_SMP
+	"	mb\n"
+#endif
+	"1:	ldl_l %0,%4\n"
+	"	and %0,%3,%2\n"
+	"	bne %2,2f\n"
+	"	xor %0,%3,%0\n"
+	"	stl_c %0,%1\n"
+	"	beq %0,3f\n"
+	"2:\n"
+#ifdef CONFIG_SMP
+	"	mb\n"
+#endif
+	".subsection 2\n"
+	"3:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (*m), "=&r" (oldbit)
+	:"Ir" (1UL << (nr & 31)), "m" (*m) : "memory");
+
+	return oldbit != 0;
+}
+
+static inline int
+test_and_set_bit_lock(unsigned long nr, volatile void *addr)
+{
+	unsigned long oldbit;
+	unsigned long temp;
+	int *m = ((int *) addr) + (nr >> 5);
+
+	__asm__ __volatile__(
+	"1:	ldl_l %0,%4\n"
+	"	and %0,%3,%2\n"
+	"	bne %2,2f\n"
+	"	xor %0,%3,%0\n"
+	"	stl_c %0,%1\n"
+	"	beq %0,3f\n"
+	"2:\n"
+#ifdef CONFIG_SMP
+	"	mb\n"
+#endif
+	".subsection 2\n"
+	"3:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (*m), "=&r" (oldbit)
+	:"Ir" (1UL << (nr & 31)), "m" (*m) : "memory");
+
+	return oldbit != 0;
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static inline int
+__test_and_set_bit(unsigned long nr, volatile void * addr)
+{
+	unsigned long mask = 1 << (nr & 0x1f);
+	int *m = ((int *) addr) + (nr >> 5);
+	int old = *m;
+
+	*m = old | mask;
+	return (old & mask) != 0;
+}
+
+static inline int
+test_and_clear_bit(unsigned long nr, volatile void * addr)
+{
+	unsigned long oldbit;
+	unsigned long temp;
+	int *m = ((int *) addr) + (nr >> 5);
+
+	__asm__ __volatile__(
+#ifdef CONFIG_SMP
+	"	mb\n"
+#endif
+	"1:	ldl_l %0,%4\n"
+	"	and %0,%3,%2\n"
+	"	beq %2,2f\n"
+	"	xor %0,%3,%0\n"
+	"	stl_c %0,%1\n"
+	"	beq %0,3f\n"
+	"2:\n"
+#ifdef CONFIG_SMP
+	"	mb\n"
+#endif
+	".subsection 2\n"
+	"3:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (*m), "=&r" (oldbit)
+	:"Ir" (1UL << (nr & 31)), "m" (*m) : "memory");
+
+	return oldbit != 0;
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static inline int
+__test_and_clear_bit(unsigned long nr, volatile void * addr)
+{
+	unsigned long mask = 1 << (nr & 0x1f);
+	int *m = ((int *) addr) + (nr >> 5);
+	int old = *m;
+
+	*m = old & ~mask;
+	return (old & mask) != 0;
+}
+
+static inline int
+test_and_change_bit(unsigned long nr, volatile void * addr)
+{
+	unsigned long oldbit;
+	unsigned long temp;
+	int *m = ((int *) addr) + (nr >> 5);
+
+	__asm__ __volatile__(
+#ifdef CONFIG_SMP
+	"	mb\n"
+#endif
+	"1:	ldl_l %0,%4\n"
+	"	and %0,%3,%2\n"
+	"	xor %0,%3,%0\n"
+	"	stl_c %0,%1\n"
+	"	beq %0,3f\n"
+#ifdef CONFIG_SMP
+	"	mb\n"
+#endif
+	".subsection 2\n"
+	"3:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (*m), "=&r" (oldbit)
+	:"Ir" (1UL << (nr & 31)), "m" (*m) : "memory");
+
+	return oldbit != 0;
+}
+
+/*
+ * WARNING: non atomic version.
+ */
+static __inline__ int
+__test_and_change_bit(unsigned long nr, volatile void * addr)
+{
+	unsigned long mask = 1 << (nr & 0x1f);
+	int *m = ((int *) addr) + (nr >> 5);
+	int old = *m;
+
+	*m = old ^ mask;
+	return (old & mask) != 0;
+}
+
+static inline int
+test_bit(int nr, const volatile void * addr)
+{
+	return (1UL & (((const int *) addr)[nr >> 5] >> (nr & 31))) != 0UL;
+}
+
+/*
+ * ffz = Find First Zero in word. Undefined if no zero exists,
+ * so code should check against ~0UL first..
+ *
+ * Do a binary search on the bits.  Due to the nature of large
+ * constants on the alpha, it is worthwhile to split the search.
+ */
+static inline unsigned long ffz_b(unsigned long x)
+{
+	unsigned long sum, x1, x2, x4;
+
+	x = ~x & -~x;		/* set first 0 bit, clear others */
+	x1 = x & 0xAA;
+	x2 = x & 0xCC;
+	x4 = x & 0xF0;
+	sum = x2 ? 2 : 0;
+	sum += (x4 != 0) * 4;
+	sum += (x1 != 0);
+
+	return sum;
+}
+
+static inline unsigned long ffz(unsigned long word)
+{
+#if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
+	/* Whee.  EV67 can calculate it directly.  */
+	return __kernel_cttz(~word);
+#else
+	unsigned long bits, qofs, bofs;
+
+	bits = __kernel_cmpbge(word, ~0UL);
+	qofs = ffz_b(bits);
+	bits = __kernel_extbl(word, qofs);
+	bofs = ffz_b(bits);
+
+	return qofs*8 + bofs;
+#endif
+}
+
+/*
+ * __ffs = Find First set bit in word.  Undefined if no set bit exists.
+ */
+static inline unsigned long __ffs(unsigned long word)
+{
+#if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
+	/* Whee.  EV67 can calculate it directly.  */
+	return __kernel_cttz(word);
+#else
+	unsigned long bits, qofs, bofs;
+
+	bits = __kernel_cmpbge(0, word);
+	qofs = ffz_b(bits);
+	bits = __kernel_extbl(word, qofs);
+	bofs = ffz_b(~bits);
+
+	return qofs*8 + bofs;
+#endif
+}
+
+#ifdef __KERNEL__
+
+/*
+ * ffs: find first bit set. This is defined the same way as
+ * the libc and compiler builtin ffs routines, therefore
+ * differs in spirit from the above __ffs.
+ */
+
+static inline int ffs(int word)
+{
+	int result = __ffs(word) + 1;
+	return word ? result : 0;
+}
+
+/*
+ * fls: find last bit set.
+ */
+#if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
+static inline int fls64(unsigned long word)
+{
+	return 64 - __kernel_ctlz(word);
+}
+#else
+extern const unsigned char __flsm1_tab[256];
+
+static inline int fls64(unsigned long x)
+{
+	unsigned long t, a, r;
+
+	t = __kernel_cmpbge (x, 0x0101010101010101UL);
+	a = __flsm1_tab[t];
+	t = __kernel_extbl (x, a);
+	r = a*8 + __flsm1_tab[t] + (x != 0);
+
+	return r;
+}
+#endif
+
+static inline unsigned long __fls(unsigned long x)
+{
+	return fls64(x) - 1;
+}
+
+static inline int fls(unsigned int x)
+{
+	return fls64(x);
+}
+
+/*
+ * hweightN: returns the hamming weight (i.e. the number
+ * of bits set) of a N-bit word
+ */
+
+#if defined(CONFIG_ALPHA_EV6) && defined(CONFIG_ALPHA_EV67)
+/* Whee.  EV67 can calculate it directly.  */
+static inline unsigned long __arch_hweight64(unsigned long w)
+{
+	return __kernel_ctpop(w);
+}
+
+static inline unsigned int __arch_hweight32(unsigned int w)
+{
+	return __arch_hweight64(w);
+}
+
+static inline unsigned int __arch_hweight16(unsigned int w)
+{
+	return __arch_hweight64(w & 0xffff);
+}
+
+static inline unsigned int __arch_hweight8(unsigned int w)
+{
+	return __arch_hweight64(w & 0xff);
+}
+#else
+#include <asm-generic/bitops/arch_hweight.h>
+#endif
+
+#include <asm-generic/bitops/const_hweight.h>
+
+#endif /* __KERNEL__ */
+
+#ifdef __KERNEL__
+
+/*
+ * Every architecture must define this function. It's the fastest
+ * way of searching a 100-bit bitmap.  It's guaranteed that at least
+ * one of the 100 bits is cleared.
+ */
+static inline unsigned long
+sched_find_first_bit(const unsigned long b[2])
+{
+	unsigned long b0, b1, ofs, tmp;
+
+	b0 = b[0];
+	b1 = b[1];
+	ofs = (b0 ? 0 : 64);
+	tmp = (b0 ? b0 : b1);
+
+	return __ffs(tmp) + ofs;
+}
+
+#include <asm-generic/bitops/le.h>
+
+#include <asm-generic/bitops/ext2-atomic-setbit.h>
+
+#endif /* __KERNEL__ */
+
+#endif /* _ALPHA_BITOPS_H */

arch/alpha/include/asm/bug.h

@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_BUG_H
+#define _ALPHA_BUG_H
+
+#include <linux/linkage.h>
+
+#ifdef CONFIG_BUG
+#include <asm/pal.h>
+
+/* ??? Would be nice to use .gprel32 here, but we can't be sure that the
+   function loaded the GP, so this could fail in modules.  */
+#define BUG()	do {							\
+	__asm__ __volatile__(						\
+		"call_pal %0  # bugchk\n\t"				\
+		".long %1\n\t.8byte %2"					\
+		: : "i"(PAL_bugchk), "i"(__LINE__), "i"(__FILE__));	\
+	unreachable();							\
+  } while (0)
+
+#define HAVE_ARCH_BUG
+#endif
+
+#include <asm-generic/bug.h>
+
+#endif

arch/alpha/include/asm/bugs.h

@@ -0,0 +1,20 @@
+/*
+ *  include/asm-alpha/bugs.h
+ *
+ *  Copyright (C) 1994  Linus Torvalds
+ */
+
+/*
+ * This is included by init/main.c to check for architecture-dependent bugs.
+ *
+ * Needs:
+ *	void check_bugs(void);
+ */
+
+/*
+ * I don't know of any alpha bugs yet.. Nice chip
+ */
+
+static void check_bugs(void)
+{
+}

arch/alpha/include/asm/cache.h

@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * include/asm-alpha/cache.h
+ */
+#ifndef __ARCH_ALPHA_CACHE_H
+#define __ARCH_ALPHA_CACHE_H
+
+
+/* Bytes per L1 (data) cache line. */
+#if defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_EV6)
+# define L1_CACHE_BYTES     64
+# define L1_CACHE_SHIFT     6
+#else
+/* Both EV4 and EV5 are write-through, read-allocate,
+   direct-mapped, physical.
+*/
+# define L1_CACHE_BYTES     32
+# define L1_CACHE_SHIFT     5
+#endif
+
+#define SMP_CACHE_BYTES    L1_CACHE_BYTES
+
+#endif

arch/alpha/include/asm/cacheflush.h

@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_CACHEFLUSH_H
+#define _ALPHA_CACHEFLUSH_H
+
+#include <linux/mm.h>
+
+/* Note that the following two definitions are _highly_ dependent
+   on the contexts in which they are used in the kernel.  I personally
+   think it is criminal how loosely defined these macros are.  */
+
+/* We need to flush the kernel's icache after loading modules.  The
+   only other use of this macro is in load_aout_interp which is not
+   used on Alpha. 
+
+   Note that this definition should *not* be used for userspace
+   icache flushing.  While functional, it is _way_ overkill.  The
+   icache is tagged with ASNs and it suffices to allocate a new ASN
+   for the process.  */
+#ifndef CONFIG_SMP
+#define flush_icache_range(start, end)		imb()
+#else
+#define flush_icache_range(start, end)		smp_imb()
+extern void smp_imb(void);
+#endif
+
+/* We need to flush the userspace icache after setting breakpoints in
+   ptrace.
+
+   Instead of indiscriminately using imb, take advantage of the fact
+   that icache entries are tagged with the ASN and load a new mm context.  */
+/* ??? Ought to use this in arch/alpha/kernel/signal.c too.  */
+
+#ifndef CONFIG_SMP
+#include <linux/sched.h>
+
+extern void __load_new_mm_context(struct mm_struct *);
+static inline void
+flush_icache_user_page(struct vm_area_struct *vma, struct page *page,
+			unsigned long addr, int len)
+{
+	if (vma->vm_flags & VM_EXEC) {
+		struct mm_struct *mm = vma->vm_mm;
+		if (current->active_mm == mm)
+			__load_new_mm_context(mm);
+		else
+			mm->context[smp_processor_id()] = 0;
+	}
+}
+#define flush_icache_user_page flush_icache_user_page
+#else /* CONFIG_SMP */
+extern void flush_icache_user_page(struct vm_area_struct *vma,
+		struct page *page, unsigned long addr, int len);
+#define flush_icache_user_page flush_icache_user_page
+#endif /* CONFIG_SMP */
+
+/* This is used only in __do_fault and do_swap_page.  */
+#define flush_icache_page(vma, page) \
+	flush_icache_user_page((vma), (page), 0, 0)
+
+#include <asm-generic/cacheflush.h>
+
+#endif /* _ALPHA_CACHEFLUSH_H */

arch/alpha/include/asm/checksum.h

@@ -0,0 +1,74 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_CHECKSUM_H
+#define _ALPHA_CHECKSUM_H
+
+#include <linux/in6.h>
+
+/*
+ *	This is a version of ip_compute_csum() optimized for IP headers,
+ *	which always checksum on 4 octet boundaries.
+ */
+extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl);
+
+/*
+ * computes the checksum of the TCP/UDP pseudo-header
+ * returns a 16-bit checksum, already complemented
+ */
+__sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
+			  __u32 len, __u8 proto, __wsum sum);
+
+__wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
+			  __u32 len, __u8 proto, __wsum sum);
+
+/*
+ * computes the checksum of a memory block at buff, length len,
+ * and adds in "sum" (32-bit)
+ *
+ * returns a 32-bit number suitable for feeding into itself
+ * or csum_tcpudp_magic
+ *
+ * this function must be called with even lengths, except
+ * for the last fragment, which may be odd
+ *
+ * it's best to have buff aligned on a 32-bit boundary
+ */
+extern __wsum csum_partial(const void *buff, int len, __wsum sum);
+
+/*
+ * the same as csum_partial, but copies from src while it
+ * checksums
+ *
+ * here even more important to align src and dst on a 32-bit (or even
+ * better 64-bit) boundary
+ */
+#define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER
+#define _HAVE_ARCH_CSUM_AND_COPY
+__wsum csum_and_copy_from_user(const void __user *src, void *dst, int len);
+
+__wsum csum_partial_copy_nocheck(const void *src, void *dst, int len);
+
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+
+extern __sum16 ip_compute_csum(const void *buff, int len);
+
+/*
+ *	Fold a partial checksum without adding pseudo headers
+ */
+
+static inline __sum16 csum_fold(__wsum csum)
+{
+	u32 sum = (__force u32)csum;
+	sum = (sum & 0xffff) + (sum >> 16);
+	sum = (sum & 0xffff) + (sum >> 16);
+	return (__force __sum16)~sum;
+}
+
+#define _HAVE_ARCH_IPV6_CSUM
+extern __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
+			       const struct in6_addr *daddr,
+			       __u32 len, __u8 proto, __wsum sum);
+#endif

arch/alpha/include/asm/cmpxchg.h

@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_CMPXCHG_H
+#define _ALPHA_CMPXCHG_H
+
+/*
+ * Atomic exchange routines.
+ */
+
+#define ____xchg(type, args...)		__xchg ## type ## _local(args)
+#define ____cmpxchg(type, args...)	__cmpxchg ## type ## _local(args)
+#include <asm/xchg.h>
+
+#define xchg_local(ptr, x)						\
+({									\
+	__typeof__(*(ptr)) _x_ = (x);					\
+	(__typeof__(*(ptr))) __xchg_local((ptr), (unsigned long)_x_,	\
+				       sizeof(*(ptr)));			\
+})
+
+#define arch_cmpxchg_local(ptr, o, n)					\
+({									\
+	__typeof__(*(ptr)) _o_ = (o);					\
+	__typeof__(*(ptr)) _n_ = (n);					\
+	(__typeof__(*(ptr))) __cmpxchg_local((ptr), (unsigned long)_o_,	\
+					  (unsigned long)_n_,		\
+					  sizeof(*(ptr)));		\
+})
+
+#define arch_cmpxchg64_local(ptr, o, n)					\
+({									\
+	BUILD_BUG_ON(sizeof(*(ptr)) != 8);				\
+	cmpxchg_local((ptr), (o), (n));					\
+})
+
+#undef ____xchg
+#undef ____cmpxchg
+#define ____xchg(type, args...)		__xchg ##type(args)
+#define ____cmpxchg(type, args...)	__cmpxchg ##type(args)
+#include <asm/xchg.h>
+
+/*
+ * The leading and the trailing memory barriers guarantee that these
+ * operations are fully ordered.
+ */
+#define arch_xchg(ptr, x)						\
+({									\
+	__typeof__(*(ptr)) __ret;					\
+	__typeof__(*(ptr)) _x_ = (x);					\
+	smp_mb();							\
+	__ret = (__typeof__(*(ptr)))					\
+		__xchg((ptr), (unsigned long)_x_, sizeof(*(ptr)));	\
+	smp_mb();							\
+	__ret;								\
+})
+
+#define arch_cmpxchg(ptr, o, n)						\
+({									\
+	__typeof__(*(ptr)) __ret;					\
+	__typeof__(*(ptr)) _o_ = (o);					\
+	__typeof__(*(ptr)) _n_ = (n);					\
+	smp_mb();							\
+	__ret = (__typeof__(*(ptr))) __cmpxchg((ptr),			\
+		(unsigned long)_o_, (unsigned long)_n_, sizeof(*(ptr)));\
+	smp_mb();							\
+	__ret;								\
+})
+
+#define arch_cmpxchg64(ptr, o, n)					\
+({									\
+	BUILD_BUG_ON(sizeof(*(ptr)) != 8);				\
+	arch_cmpxchg((ptr), (o), (n));					\
+})
+
+#undef ____cmpxchg
+
+#endif /* _ALPHA_CMPXCHG_H */

arch/alpha/include/asm/compiler.h

@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_COMPILER_H
+#define __ALPHA_COMPILER_H
+
+#include <uapi/asm/compiler.h>
+
+#endif /* __ALPHA_COMPILER_H */

arch/alpha/include/asm/console.h

@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __AXP_CONSOLE_H
+#define __AXP_CONSOLE_H
+
+#include <uapi/asm/console.h>
+
+#ifndef __ASSEMBLY__
+extern long callback_puts(long unit, const char *s, long length);
+extern long callback_getc(long unit);
+extern long callback_open_console(void);
+extern long callback_close_console(void);
+extern long callback_open(const char *device, long length);
+extern long callback_close(long unit);
+extern long callback_read(long channel, long count, const char *buf, long lbn);
+extern long callback_getenv(long id, const char *buf, unsigned long buf_size);
+extern long callback_setenv(long id, const char *buf, unsigned long buf_size);
+extern long callback_save_env(void);
+
+extern int srm_fixup(unsigned long new_callback_addr,
+		     unsigned long new_hwrpb_addr);
+extern long srm_puts(const char *, long);
+extern long srm_printk(const char *, ...)
+	__attribute__ ((format (printf, 1, 2)));
+
+struct crb_struct;
+struct hwrpb_struct;
+extern int callback_init_done;
+extern void * callback_init(void *);
+#endif /* __ASSEMBLY__ */
+#endif /* __AXP_CONSOLE_H */

arch/alpha/include/asm/core_apecs.h

@@ -0,0 +1,518 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_APECS__H__
+#define __ALPHA_APECS__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * APECS is the internal name for the 2107x chipset which provides
+ * memory controller and PCI access for the 21064 chip based systems.
+ *
+ * This file is based on:
+ *
+ * DECchip 21071-AA and DECchip 21072-AA Core Logic Chipsets
+ * Data Sheet
+ *
+ * EC-N0648-72
+ *
+ *
+ * david.rusling@reo.mts.dec.com Initial Version.
+ *
+ */
+
+/*
+   An AVANTI *might* be an XL, and an XL has only 27 bits of ISA address
+   that get passed through the PCI<->ISA bridge chip. So we've gotta use
+   both windows to max out the physical memory we can DMA to. Sigh...
+
+   If we try a window at 0 for 1GB as a work-around, we run into conflicts
+   with ISA/PCI bus memory which can't be relocated, like VGA aperture and
+   BIOS ROMs. So we must put the windows high enough to avoid these areas.
+
+   We put window 1 at BUS 64Mb for 64Mb, mapping physical 0 to 64Mb-1,
+   and window 2 at BUS 1Gb for 1Gb, mapping physical 0 to 1Gb-1.
+   Yes, this does map 0 to 64Mb-1 twice, but only window 1 will actually
+   be used for that range (via virt_to_bus()).
+
+   Note that we actually fudge the window 1 maximum as 48Mb instead of 64Mb,
+   to keep virt_to_bus() from returning an address in the first window, for
+   a data area that goes beyond the 64Mb first DMA window.  Sigh...
+   The fudge factor MUST match with <asm/dma.h> MAX_DMA_ADDRESS, but
+   we can't just use that here, because of header file looping... :-(
+
+   Window 1 will be used for all DMA from the ISA bus; yes, that does
+   limit what memory an ISA floppy or sound card or Ethernet can touch, but
+   it's also a known limitation on other platforms as well. We use the
+   same technique that is used on INTEL platforms with similar limitation:
+   set MAX_DMA_ADDRESS and clear some pages' DMAable flags during mem_init().
+   We trust that any ISA bus device drivers will *always* ask for DMAable
+   memory explicitly via kmalloc()/get_free_pages() flags arguments.
+
+   Note that most PCI bus devices' drivers do *not* explicitly ask for
+   DMAable memory; they count on being able to DMA to any memory they
+   get from kmalloc()/get_free_pages(). They will also use window 1 for
+   any physical memory accesses below 64Mb; the rest will be handled by
+   window 2, maxing out at 1Gb of memory. I trust this is enough... :-)
+
+   We hope that the area before the first window is large enough so that
+   there will be no overlap at the top end (64Mb). We *must* locate the
+   PCI cards' memory just below window 1, so that there's still the
+   possibility of being able to access it via SPARSE space. This is
+   important for cards such as the Matrox Millennium, whose Xserver
+   wants to access memory-mapped registers in byte and short lengths.
+
+   Note that the XL is treated differently from the AVANTI, even though
+   for most other things they are identical. It didn't seem reasonable to
+   make the AVANTI support pay for the limitations of the XL. It is true,
+   however, that an XL kernel will run on an AVANTI without problems.
+
+   %%% All of this should be obviated by the ability to route
+   everything through the iommu.
+*/
+
+/*
+ * 21071-DA Control and Status registers.
+ * These are used for PCI memory access.
+ */
+#define APECS_IOC_DCSR                  (IDENT_ADDR + 0x1A0000000UL)
+#define APECS_IOC_PEAR                  (IDENT_ADDR + 0x1A0000020UL)
+#define APECS_IOC_SEAR                  (IDENT_ADDR + 0x1A0000040UL)
+#define APECS_IOC_DR1                   (IDENT_ADDR + 0x1A0000060UL)
+#define APECS_IOC_DR2                   (IDENT_ADDR + 0x1A0000080UL)
+#define APECS_IOC_DR3                   (IDENT_ADDR + 0x1A00000A0UL)
+
+#define APECS_IOC_TB1R                  (IDENT_ADDR + 0x1A00000C0UL)
+#define APECS_IOC_TB2R                  (IDENT_ADDR + 0x1A00000E0UL)
+
+#define APECS_IOC_PB1R                  (IDENT_ADDR + 0x1A0000100UL)
+#define APECS_IOC_PB2R                  (IDENT_ADDR + 0x1A0000120UL)
+
+#define APECS_IOC_PM1R                  (IDENT_ADDR + 0x1A0000140UL)
+#define APECS_IOC_PM2R                  (IDENT_ADDR + 0x1A0000160UL)
+
+#define APECS_IOC_HAXR0                 (IDENT_ADDR + 0x1A0000180UL)
+#define APECS_IOC_HAXR1                 (IDENT_ADDR + 0x1A00001A0UL)
+#define APECS_IOC_HAXR2                 (IDENT_ADDR + 0x1A00001C0UL)
+
+#define APECS_IOC_PMLT                  (IDENT_ADDR + 0x1A00001E0UL)
+
+#define APECS_IOC_TLBTAG0               (IDENT_ADDR + 0x1A0000200UL)
+#define APECS_IOC_TLBTAG1               (IDENT_ADDR + 0x1A0000220UL)
+#define APECS_IOC_TLBTAG2               (IDENT_ADDR + 0x1A0000240UL)
+#define APECS_IOC_TLBTAG3               (IDENT_ADDR + 0x1A0000260UL)
+#define APECS_IOC_TLBTAG4               (IDENT_ADDR + 0x1A0000280UL)
+#define APECS_IOC_TLBTAG5               (IDENT_ADDR + 0x1A00002A0UL)
+#define APECS_IOC_TLBTAG6               (IDENT_ADDR + 0x1A00002C0UL)
+#define APECS_IOC_TLBTAG7               (IDENT_ADDR + 0x1A00002E0UL)
+
+#define APECS_IOC_TLBDATA0              (IDENT_ADDR + 0x1A0000300UL)
+#define APECS_IOC_TLBDATA1              (IDENT_ADDR + 0x1A0000320UL)
+#define APECS_IOC_TLBDATA2              (IDENT_ADDR + 0x1A0000340UL)
+#define APECS_IOC_TLBDATA3              (IDENT_ADDR + 0x1A0000360UL)
+#define APECS_IOC_TLBDATA4              (IDENT_ADDR + 0x1A0000380UL)
+#define APECS_IOC_TLBDATA5              (IDENT_ADDR + 0x1A00003A0UL)
+#define APECS_IOC_TLBDATA6              (IDENT_ADDR + 0x1A00003C0UL)
+#define APECS_IOC_TLBDATA7              (IDENT_ADDR + 0x1A00003E0UL)
+
+#define APECS_IOC_TBIA                  (IDENT_ADDR + 0x1A0000400UL)
+
+
+/*
+ * 21071-CA Control and Status registers.
+ * These are used to program memory timing,
+ *  configure memory and initialise the B-Cache.
+ */
+#define APECS_MEM_GCR		        (IDENT_ADDR + 0x180000000UL)
+#define APECS_MEM_EDSR		        (IDENT_ADDR + 0x180000040UL)
+#define APECS_MEM_TAR  		        (IDENT_ADDR + 0x180000060UL)
+#define APECS_MEM_ELAR		        (IDENT_ADDR + 0x180000080UL)
+#define APECS_MEM_EHAR  		(IDENT_ADDR + 0x1800000a0UL)
+#define APECS_MEM_SFT_RST		(IDENT_ADDR + 0x1800000c0UL)
+#define APECS_MEM_LDxLAR 		(IDENT_ADDR + 0x1800000e0UL)
+#define APECS_MEM_LDxHAR 		(IDENT_ADDR + 0x180000100UL)
+#define APECS_MEM_GTR    		(IDENT_ADDR + 0x180000200UL)
+#define APECS_MEM_RTR    		(IDENT_ADDR + 0x180000220UL)
+#define APECS_MEM_VFPR   		(IDENT_ADDR + 0x180000240UL)
+#define APECS_MEM_PDLDR  		(IDENT_ADDR + 0x180000260UL)
+#define APECS_MEM_PDhDR  		(IDENT_ADDR + 0x180000280UL)
+
+/* Bank x Base Address Register */
+#define APECS_MEM_B0BAR  		(IDENT_ADDR + 0x180000800UL)
+#define APECS_MEM_B1BAR  		(IDENT_ADDR + 0x180000820UL)
+#define APECS_MEM_B2BAR  		(IDENT_ADDR + 0x180000840UL)
+#define APECS_MEM_B3BAR  		(IDENT_ADDR + 0x180000860UL)
+#define APECS_MEM_B4BAR  		(IDENT_ADDR + 0x180000880UL)
+#define APECS_MEM_B5BAR  		(IDENT_ADDR + 0x1800008A0UL)
+#define APECS_MEM_B6BAR  		(IDENT_ADDR + 0x1800008C0UL)
+#define APECS_MEM_B7BAR  		(IDENT_ADDR + 0x1800008E0UL)
+#define APECS_MEM_B8BAR  		(IDENT_ADDR + 0x180000900UL)
+
+/* Bank x Configuration Register */
+#define APECS_MEM_B0BCR  		(IDENT_ADDR + 0x180000A00UL)
+#define APECS_MEM_B1BCR  		(IDENT_ADDR + 0x180000A20UL)
+#define APECS_MEM_B2BCR  		(IDENT_ADDR + 0x180000A40UL)
+#define APECS_MEM_B3BCR  		(IDENT_ADDR + 0x180000A60UL)
+#define APECS_MEM_B4BCR  		(IDENT_ADDR + 0x180000A80UL)
+#define APECS_MEM_B5BCR  		(IDENT_ADDR + 0x180000AA0UL)
+#define APECS_MEM_B6BCR  		(IDENT_ADDR + 0x180000AC0UL)
+#define APECS_MEM_B7BCR  		(IDENT_ADDR + 0x180000AE0UL)
+#define APECS_MEM_B8BCR  		(IDENT_ADDR + 0x180000B00UL)
+
+/* Bank x Timing Register A */
+#define APECS_MEM_B0TRA  		(IDENT_ADDR + 0x180000C00UL)
+#define APECS_MEM_B1TRA  		(IDENT_ADDR + 0x180000C20UL)
+#define APECS_MEM_B2TRA  		(IDENT_ADDR + 0x180000C40UL)
+#define APECS_MEM_B3TRA  		(IDENT_ADDR + 0x180000C60UL)
+#define APECS_MEM_B4TRA  		(IDENT_ADDR + 0x180000C80UL)
+#define APECS_MEM_B5TRA  		(IDENT_ADDR + 0x180000CA0UL)
+#define APECS_MEM_B6TRA  		(IDENT_ADDR + 0x180000CC0UL)
+#define APECS_MEM_B7TRA  		(IDENT_ADDR + 0x180000CE0UL)
+#define APECS_MEM_B8TRA  		(IDENT_ADDR + 0x180000D00UL)
+
+/* Bank x Timing Register B */
+#define APECS_MEM_B0TRB                 (IDENT_ADDR + 0x180000E00UL)
+#define APECS_MEM_B1TRB  		(IDENT_ADDR + 0x180000E20UL)
+#define APECS_MEM_B2TRB  		(IDENT_ADDR + 0x180000E40UL)
+#define APECS_MEM_B3TRB  		(IDENT_ADDR + 0x180000E60UL)
+#define APECS_MEM_B4TRB  		(IDENT_ADDR + 0x180000E80UL)
+#define APECS_MEM_B5TRB  		(IDENT_ADDR + 0x180000EA0UL)
+#define APECS_MEM_B6TRB  		(IDENT_ADDR + 0x180000EC0UL)
+#define APECS_MEM_B7TRB  		(IDENT_ADDR + 0x180000EE0UL)
+#define APECS_MEM_B8TRB  		(IDENT_ADDR + 0x180000F00UL)
+
+
+/*
+ * Memory spaces:
+ */
+#define APECS_IACK_SC		        (IDENT_ADDR + 0x1b0000000UL)
+#define APECS_CONF		        (IDENT_ADDR + 0x1e0000000UL)
+#define APECS_IO			(IDENT_ADDR + 0x1c0000000UL)
+#define APECS_SPARSE_MEM		(IDENT_ADDR + 0x200000000UL)
+#define APECS_DENSE_MEM		        (IDENT_ADDR + 0x300000000UL)
+
+
+/*
+ * Bit definitions for I/O Controller status register 0:
+ */
+#define APECS_IOC_STAT0_CMD		0xf
+#define APECS_IOC_STAT0_ERR		(1<<4)
+#define APECS_IOC_STAT0_LOST		(1<<5)
+#define APECS_IOC_STAT0_THIT		(1<<6)
+#define APECS_IOC_STAT0_TREF		(1<<7)
+#define APECS_IOC_STAT0_CODE_SHIFT	8
+#define APECS_IOC_STAT0_CODE_MASK	0x7
+#define APECS_IOC_STAT0_P_NBR_SHIFT	13
+#define APECS_IOC_STAT0_P_NBR_MASK	0x7ffff
+
+#define APECS_HAE_ADDRESS		APECS_IOC_HAXR1
+
+
+/*
+ * Data structure for handling APECS machine checks:
+ */
+
+struct el_apecs_mikasa_sysdata_mcheck
+{
+	unsigned long coma_gcr;
+	unsigned long coma_edsr;
+	unsigned long coma_ter;
+	unsigned long coma_elar;
+	unsigned long coma_ehar;
+	unsigned long coma_ldlr;
+	unsigned long coma_ldhr;
+	unsigned long coma_base0;
+	unsigned long coma_base1;
+	unsigned long coma_base2;
+	unsigned long coma_base3;
+	unsigned long coma_cnfg0;
+	unsigned long coma_cnfg1;
+	unsigned long coma_cnfg2;
+	unsigned long coma_cnfg3;
+	unsigned long epic_dcsr;
+	unsigned long epic_pear;
+	unsigned long epic_sear;
+	unsigned long epic_tbr1;
+	unsigned long epic_tbr2;
+	unsigned long epic_pbr1;
+	unsigned long epic_pbr2;
+	unsigned long epic_pmr1;
+	unsigned long epic_pmr2;
+	unsigned long epic_harx1;
+	unsigned long epic_harx2;
+	unsigned long epic_pmlt;
+	unsigned long epic_tag0;
+	unsigned long epic_tag1;
+	unsigned long epic_tag2;
+	unsigned long epic_tag3;
+	unsigned long epic_tag4;
+	unsigned long epic_tag5;
+	unsigned long epic_tag6;
+	unsigned long epic_tag7;
+	unsigned long epic_data0;
+	unsigned long epic_data1;
+	unsigned long epic_data2;
+	unsigned long epic_data3;
+	unsigned long epic_data4;
+	unsigned long epic_data5;
+	unsigned long epic_data6;
+	unsigned long epic_data7;
+
+	unsigned long pceb_vid;
+	unsigned long pceb_did;
+	unsigned long pceb_revision;
+	unsigned long pceb_command;
+	unsigned long pceb_status;
+	unsigned long pceb_latency;
+	unsigned long pceb_control;
+	unsigned long pceb_arbcon;
+	unsigned long pceb_arbpri;
+
+	unsigned long esc_id;
+	unsigned long esc_revision;
+	unsigned long esc_int0;
+	unsigned long esc_int1;
+	unsigned long esc_elcr0;
+	unsigned long esc_elcr1;
+	unsigned long esc_last_eisa;
+	unsigned long esc_nmi_stat;
+
+	unsigned long pci_ir;
+	unsigned long pci_imr;
+	unsigned long svr_mgr;
+};
+
+/* This for the normal APECS machines.  */
+struct el_apecs_sysdata_mcheck
+{
+	unsigned long coma_gcr;
+	unsigned long coma_edsr;
+	unsigned long coma_ter;
+	unsigned long coma_elar;
+	unsigned long coma_ehar;
+	unsigned long coma_ldlr;
+	unsigned long coma_ldhr;
+	unsigned long coma_base0;
+	unsigned long coma_base1;
+	unsigned long coma_base2;
+	unsigned long coma_cnfg0;
+	unsigned long coma_cnfg1;
+	unsigned long coma_cnfg2;
+	unsigned long epic_dcsr;
+	unsigned long epic_pear;
+	unsigned long epic_sear;
+	unsigned long epic_tbr1;
+	unsigned long epic_tbr2;
+	unsigned long epic_pbr1;
+	unsigned long epic_pbr2;
+	unsigned long epic_pmr1;
+	unsigned long epic_pmr2;
+	unsigned long epic_harx1;
+	unsigned long epic_harx2;
+	unsigned long epic_pmlt;
+	unsigned long epic_tag0;
+	unsigned long epic_tag1;
+	unsigned long epic_tag2;
+	unsigned long epic_tag3;
+	unsigned long epic_tag4;
+	unsigned long epic_tag5;
+	unsigned long epic_tag6;
+	unsigned long epic_tag7;
+	unsigned long epic_data0;
+	unsigned long epic_data1;
+	unsigned long epic_data2;
+	unsigned long epic_data3;
+	unsigned long epic_data4;
+	unsigned long epic_data5;
+	unsigned long epic_data6;
+	unsigned long epic_data7;
+};
+
+struct el_apecs_procdata
+{
+	unsigned long paltemp[32];  /* PAL TEMP REGS. */
+	/* EV4-specific fields */
+	unsigned long exc_addr;     /* Address of excepting instruction. */
+	unsigned long exc_sum;      /* Summary of arithmetic traps. */
+	unsigned long exc_mask;     /* Exception mask (from exc_sum). */
+	unsigned long iccsr;        /* IBox hardware enables. */
+	unsigned long pal_base;     /* Base address for PALcode. */
+	unsigned long hier;         /* Hardware Interrupt Enable. */
+	unsigned long hirr;         /* Hardware Interrupt Request. */
+	unsigned long csr;          /* D-stream fault info. */
+	unsigned long dc_stat;      /* D-cache status (ECC/Parity Err). */
+	unsigned long dc_addr;      /* EV3 Phys Addr for ECC/DPERR. */
+	unsigned long abox_ctl;     /* ABox Control Register. */
+	unsigned long biu_stat;     /* BIU Status. */
+	unsigned long biu_addr;     /* BUI Address. */
+	unsigned long biu_ctl;      /* BIU Control. */
+	unsigned long fill_syndrome;/* For correcting ECC errors. */
+	unsigned long fill_addr;    /* Cache block which was being read */
+	unsigned long va;           /* Effective VA of fault or miss. */
+	unsigned long bc_tag;       /* Backup Cache Tag Probe Results.*/
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * Unlike Jensen, the APECS machines have no concept of local
+ * I/O---everything goes over the PCI bus.
+ *
+ * There is plenty room for optimization here.  In particular,
+ * the Alpha's insb/insw/extb/extw should be useful in moving
+ * data to/from the right byte-lanes.
+ */
+
+#define vip	volatile int __force *
+#define vuip	volatile unsigned int __force *
+#define vulp	volatile unsigned long __force *
+
+#define APECS_SET_HAE						\
+	do {							\
+		if (addr >= (1UL << 24)) {			\
+			unsigned long msb = addr & 0xf8000000;	\
+			addr -= msb;				\
+			set_hae(msb);				\
+		}						\
+	} while (0)
+
+__EXTERN_INLINE unsigned int apecs_ioread8(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long result, base_and_type;
+
+	if (addr >= APECS_DENSE_MEM) {
+		addr -= APECS_DENSE_MEM;
+		APECS_SET_HAE;
+		base_and_type = APECS_SPARSE_MEM + 0x00;
+	} else {
+		addr -= APECS_IO;
+		base_and_type = APECS_IO + 0x00;
+	}
+
+	result = *(vip) ((addr << 5) + base_and_type);
+	return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE void apecs_iowrite8(u8 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long w, base_and_type;
+
+	if (addr >= APECS_DENSE_MEM) {
+		addr -= APECS_DENSE_MEM;
+		APECS_SET_HAE;
+		base_and_type = APECS_SPARSE_MEM + 0x00;
+	} else {
+		addr -= APECS_IO;
+		base_and_type = APECS_IO + 0x00;
+	}
+
+	w = __kernel_insbl(b, addr & 3);
+	*(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE unsigned int apecs_ioread16(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long result, base_and_type;
+
+	if (addr >= APECS_DENSE_MEM) {
+		addr -= APECS_DENSE_MEM;
+		APECS_SET_HAE;
+		base_and_type = APECS_SPARSE_MEM + 0x08;
+	} else {
+		addr -= APECS_IO;
+		base_and_type = APECS_IO + 0x08;
+	}
+
+	result = *(vip) ((addr << 5) + base_and_type);
+	return __kernel_extwl(result, addr & 3);
+}
+
+__EXTERN_INLINE void apecs_iowrite16(u16 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long w, base_and_type;
+
+	if (addr >= APECS_DENSE_MEM) {
+		addr -= APECS_DENSE_MEM;
+		APECS_SET_HAE;
+		base_and_type = APECS_SPARSE_MEM + 0x08;
+	} else {
+		addr -= APECS_IO;
+		base_and_type = APECS_IO + 0x08;
+	}
+
+	w = __kernel_inswl(b, addr & 3);
+	*(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE unsigned int apecs_ioread32(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < APECS_DENSE_MEM)
+		addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
+	return *(vuip)addr;
+}
+
+__EXTERN_INLINE void apecs_iowrite32(u32 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < APECS_DENSE_MEM)
+		addr = ((addr - APECS_IO) << 5) + APECS_IO + 0x18;
+	*(vuip)addr = b;
+}
+
+__EXTERN_INLINE void __iomem *apecs_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + APECS_IO);
+}
+
+__EXTERN_INLINE void __iomem *apecs_ioremap(unsigned long addr,
+					    unsigned long size)
+{
+	return (void __iomem *)(addr + APECS_DENSE_MEM);
+}
+
+__EXTERN_INLINE int apecs_is_ioaddr(unsigned long addr)
+{
+	return addr >= IDENT_ADDR + 0x180000000UL;
+}
+
+__EXTERN_INLINE int apecs_is_mmio(const volatile void __iomem *addr)
+{
+	return (unsigned long)addr >= APECS_DENSE_MEM;
+}
+
+#undef APECS_SET_HAE
+
+#undef vip
+#undef vuip
+#undef vulp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		apecs
+#define apecs_trivial_io_bw	0
+#define apecs_trivial_io_lq	0
+#define apecs_trivial_rw_bw	2
+#define apecs_trivial_rw_lq	1
+#define apecs_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_APECS__H__ */

arch/alpha/include/asm/core_cia.h

@@ -0,0 +1,501 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_CIA__H__
+#define __ALPHA_CIA__H__
+
+/* Define to experiment with fitting everything into one 512MB HAE window.  */
+#define CIA_ONE_HAE_WINDOW 1
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * CIA is the internal name for the 21171 chipset which provides
+ * memory controller and PCI access for the 21164 chip based systems.
+ * Also supported here is the 21172 (CIA-2) and 21174 (PYXIS).
+ *
+ * The lineage is a bit confused, since the 21174 was reportedly started
+ * from the 21171 Pass 1 mask, and so is missing bug fixes that appear
+ * in 21171 Pass 2 and 21172, but it also contains additional features.
+ *
+ * This file is based on:
+ *
+ * DECchip 21171 Core Logic Chipset
+ * Technical Reference Manual
+ *
+ * EC-QE18B-TE
+ *
+ * david.rusling@reo.mts.dec.com Initial Version.
+ *
+ */
+
+/*
+ * CIA ADDRESS BIT DEFINITIONS
+ *
+ *  3333 3333 3322 2222 2222 1111 1111 11
+ *  9876 5432 1098 7654 3210 9876 5432 1098 7654 3210
+ *  ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
+ *  1                                             000
+ *  ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
+ *  |                                             |\|
+ *  |                               Byte Enable --+ |
+ *  |                             Transfer Length --+
+ *  +-- IO space, not cached
+ *
+ *   Byte      Transfer
+ *   Enable    Length    Transfer  Byte    Address
+ *   adr<6:5>  adr<4:3>  Length    Enable  Adder
+ *   ---------------------------------------------
+ *      00        00      Byte      1110   0x000
+ *      01        00      Byte      1101   0x020
+ *      10        00      Byte      1011   0x040
+ *      11        00      Byte      0111   0x060
+ *
+ *      00        01      Word      1100   0x008
+ *      01        01      Word      1001   0x028 <= Not supported in this code.
+ *      10        01      Word      0011   0x048
+ *
+ *      00        10      Tribyte   1000   0x010
+ *      01        10      Tribyte   0001   0x030
+ *
+ *      10        11      Longword  0000   0x058
+ *
+ *      Note that byte enables are asserted low.
+ *
+ */
+
+#define CIA_MEM_R1_MASK 0x1fffffff  /* SPARSE Mem region 1 mask is 29 bits */
+#define CIA_MEM_R2_MASK 0x07ffffff  /* SPARSE Mem region 2 mask is 27 bits */
+#define CIA_MEM_R3_MASK 0x03ffffff  /* SPARSE Mem region 3 mask is 26 bits */
+
+/*
+ * 21171-CA Control and Status Registers
+ */
+#define CIA_IOC_CIA_REV			(IDENT_ADDR + 0x8740000080UL)
+#  define CIA_REV_MASK			0xff
+#define CIA_IOC_PCI_LAT			(IDENT_ADDR + 0x87400000C0UL)
+#define CIA_IOC_CIA_CTRL		(IDENT_ADDR + 0x8740000100UL)
+#  define CIA_CTRL_PCI_EN		(1 << 0)
+#  define CIA_CTRL_PCI_LOCK_EN		(1 << 1)
+#  define CIA_CTRL_PCI_LOOP_EN		(1 << 2)
+#  define CIA_CTRL_FST_BB_EN		(1 << 3)
+#  define CIA_CTRL_PCI_MST_EN		(1 << 4)
+#  define CIA_CTRL_PCI_MEM_EN		(1 << 5)
+#  define CIA_CTRL_PCI_REQ64_EN		(1 << 6)
+#  define CIA_CTRL_PCI_ACK64_EN		(1 << 7)
+#  define CIA_CTRL_ADDR_PE_EN		(1 << 8)
+#  define CIA_CTRL_PERR_EN		(1 << 9)
+#  define CIA_CTRL_FILL_ERR_EN		(1 << 10)
+#  define CIA_CTRL_MCHK_ERR_EN		(1 << 11)
+#  define CIA_CTRL_ECC_CHK_EN		(1 << 12)
+#  define CIA_CTRL_ASSERT_IDLE_BC	(1 << 13)
+#  define CIA_CTRL_COM_IDLE_BC		(1 << 14)
+#  define CIA_CTRL_CSR_IOA_BYPASS	(1 << 15)
+#  define CIA_CTRL_IO_FLUSHREQ_EN	(1 << 16)
+#  define CIA_CTRL_CPU_FLUSHREQ_EN	(1 << 17)
+#  define CIA_CTRL_ARB_CPU_EN		(1 << 18)
+#  define CIA_CTRL_EN_ARB_LINK		(1 << 19)
+#  define CIA_CTRL_RD_TYPE_SHIFT	20
+#  define CIA_CTRL_RL_TYPE_SHIFT	24
+#  define CIA_CTRL_RM_TYPE_SHIFT	28
+#  define CIA_CTRL_EN_DMA_RD_PERF	(1 << 31)
+#define CIA_IOC_CIA_CNFG		(IDENT_ADDR + 0x8740000140UL)
+#  define CIA_CNFG_IOA_BWEN		(1 << 0)
+#  define CIA_CNFG_PCI_MWEN		(1 << 4)
+#  define CIA_CNFG_PCI_DWEN		(1 << 5)
+#  define CIA_CNFG_PCI_WLEN		(1 << 8)
+#define CIA_IOC_FLASH_CTRL		(IDENT_ADDR + 0x8740000200UL)
+#define CIA_IOC_HAE_MEM			(IDENT_ADDR + 0x8740000400UL)
+#define CIA_IOC_HAE_IO			(IDENT_ADDR + 0x8740000440UL)
+#define CIA_IOC_CFG			(IDENT_ADDR + 0x8740000480UL)
+#define CIA_IOC_CACK_EN			(IDENT_ADDR + 0x8740000600UL)
+#  define CIA_CACK_EN_LOCK_EN		(1 << 0)
+#  define CIA_CACK_EN_MB_EN		(1 << 1)
+#  define CIA_CACK_EN_SET_DIRTY_EN	(1 << 2)
+#  define CIA_CACK_EN_BC_VICTIM_EN	(1 << 3)
+
+
+/*
+ * 21171-CA Diagnostic Registers
+ */
+#define CIA_IOC_CIA_DIAG		(IDENT_ADDR + 0x8740002000UL)
+#define CIA_IOC_DIAG_CHECK		(IDENT_ADDR + 0x8740003000UL)
+
+/*
+ * 21171-CA Performance Monitor registers
+ */
+#define CIA_IOC_PERF_MONITOR		(IDENT_ADDR + 0x8740004000UL)
+#define CIA_IOC_PERF_CONTROL		(IDENT_ADDR + 0x8740004040UL)
+
+/*
+ * 21171-CA Error registers
+ */
+#define CIA_IOC_CPU_ERR0		(IDENT_ADDR + 0x8740008000UL)
+#define CIA_IOC_CPU_ERR1		(IDENT_ADDR + 0x8740008040UL)
+#define CIA_IOC_CIA_ERR			(IDENT_ADDR + 0x8740008200UL)
+#  define CIA_ERR_COR_ERR		(1 << 0)
+#  define CIA_ERR_UN_COR_ERR		(1 << 1)
+#  define CIA_ERR_CPU_PE		(1 << 2)
+#  define CIA_ERR_MEM_NEM		(1 << 3)
+#  define CIA_ERR_PCI_SERR		(1 << 4)
+#  define CIA_ERR_PERR			(1 << 5)
+#  define CIA_ERR_PCI_ADDR_PE		(1 << 6)
+#  define CIA_ERR_RCVD_MAS_ABT		(1 << 7)
+#  define CIA_ERR_RCVD_TAR_ABT		(1 << 8)
+#  define CIA_ERR_PA_PTE_INV		(1 << 9)
+#  define CIA_ERR_FROM_WRT_ERR		(1 << 10)
+#  define CIA_ERR_IOA_TIMEOUT		(1 << 11)
+#  define CIA_ERR_LOST_CORR_ERR		(1 << 16)
+#  define CIA_ERR_LOST_UN_CORR_ERR	(1 << 17)
+#  define CIA_ERR_LOST_CPU_PE		(1 << 18)
+#  define CIA_ERR_LOST_MEM_NEM		(1 << 19)
+#  define CIA_ERR_LOST_PERR		(1 << 21)
+#  define CIA_ERR_LOST_PCI_ADDR_PE	(1 << 22)
+#  define CIA_ERR_LOST_RCVD_MAS_ABT	(1 << 23)
+#  define CIA_ERR_LOST_RCVD_TAR_ABT	(1 << 24)
+#  define CIA_ERR_LOST_PA_PTE_INV	(1 << 25)
+#  define CIA_ERR_LOST_FROM_WRT_ERR	(1 << 26)
+#  define CIA_ERR_LOST_IOA_TIMEOUT	(1 << 27)
+#  define CIA_ERR_VALID			(1 << 31)
+#define CIA_IOC_CIA_STAT		(IDENT_ADDR + 0x8740008240UL)
+#define CIA_IOC_ERR_MASK		(IDENT_ADDR + 0x8740008280UL)
+#define CIA_IOC_CIA_SYN			(IDENT_ADDR + 0x8740008300UL)
+#define CIA_IOC_MEM_ERR0		(IDENT_ADDR + 0x8740008400UL)
+#define CIA_IOC_MEM_ERR1		(IDENT_ADDR + 0x8740008440UL)
+#define CIA_IOC_PCI_ERR0		(IDENT_ADDR + 0x8740008800UL)
+#define CIA_IOC_PCI_ERR1		(IDENT_ADDR + 0x8740008840UL)
+#define CIA_IOC_PCI_ERR3		(IDENT_ADDR + 0x8740008880UL)
+
+/*
+ * 21171-CA System configuration registers
+ */
+#define CIA_IOC_MCR			(IDENT_ADDR + 0x8750000000UL)
+#define CIA_IOC_MBA0			(IDENT_ADDR + 0x8750000600UL)
+#define CIA_IOC_MBA2			(IDENT_ADDR + 0x8750000680UL)
+#define CIA_IOC_MBA4			(IDENT_ADDR + 0x8750000700UL)
+#define CIA_IOC_MBA6			(IDENT_ADDR + 0x8750000780UL)
+#define CIA_IOC_MBA8			(IDENT_ADDR + 0x8750000800UL)
+#define CIA_IOC_MBAA			(IDENT_ADDR + 0x8750000880UL)
+#define CIA_IOC_MBAC			(IDENT_ADDR + 0x8750000900UL)
+#define CIA_IOC_MBAE			(IDENT_ADDR + 0x8750000980UL)
+#define CIA_IOC_TMG0			(IDENT_ADDR + 0x8750000B00UL)
+#define CIA_IOC_TMG1			(IDENT_ADDR + 0x8750000B40UL)
+#define CIA_IOC_TMG2			(IDENT_ADDR + 0x8750000B80UL)
+
+/*
+ * 2117A-CA PCI Address and Scatter-Gather Registers.
+ */
+#define CIA_IOC_PCI_TBIA		(IDENT_ADDR + 0x8760000100UL)
+
+#define CIA_IOC_PCI_W0_BASE		(IDENT_ADDR + 0x8760000400UL)
+#define CIA_IOC_PCI_W0_MASK		(IDENT_ADDR + 0x8760000440UL)
+#define CIA_IOC_PCI_T0_BASE		(IDENT_ADDR + 0x8760000480UL)
+
+#define CIA_IOC_PCI_W1_BASE		(IDENT_ADDR + 0x8760000500UL)
+#define CIA_IOC_PCI_W1_MASK		(IDENT_ADDR + 0x8760000540UL)
+#define CIA_IOC_PCI_T1_BASE		(IDENT_ADDR + 0x8760000580UL)
+
+#define CIA_IOC_PCI_W2_BASE		(IDENT_ADDR + 0x8760000600UL)
+#define CIA_IOC_PCI_W2_MASK		(IDENT_ADDR + 0x8760000640UL)
+#define CIA_IOC_PCI_T2_BASE		(IDENT_ADDR + 0x8760000680UL)
+
+#define CIA_IOC_PCI_W3_BASE		(IDENT_ADDR + 0x8760000700UL)
+#define CIA_IOC_PCI_W3_MASK		(IDENT_ADDR + 0x8760000740UL)
+#define CIA_IOC_PCI_T3_BASE		(IDENT_ADDR + 0x8760000780UL)
+
+#define CIA_IOC_PCI_Wn_BASE(N)	(IDENT_ADDR + 0x8760000400UL + (N)*0x100) 
+#define CIA_IOC_PCI_Wn_MASK(N)	(IDENT_ADDR + 0x8760000440UL + (N)*0x100) 
+#define CIA_IOC_PCI_Tn_BASE(N)	(IDENT_ADDR + 0x8760000480UL + (N)*0x100) 
+
+#define CIA_IOC_PCI_W_DAC		(IDENT_ADDR + 0x87600007C0UL)
+
+/*
+ * 2117A-CA Address Translation Registers.
+ */
+
+/* 8 tag registers, the first 4 of which are lockable.  */
+#define CIA_IOC_TB_TAGn(n) \
+	(IDENT_ADDR + 0x8760000800UL + (n)*0x40)
+
+/* 4 page registers per tag register.  */
+#define CIA_IOC_TBn_PAGEm(n,m) \
+	(IDENT_ADDR + 0x8760001000UL + (n)*0x100 + (m)*0x40)
+
+/*
+ * Memory spaces:
+ */
+#define CIA_IACK_SC			(IDENT_ADDR + 0x8720000000UL)
+#define CIA_CONF			(IDENT_ADDR + 0x8700000000UL)
+#define CIA_IO				(IDENT_ADDR + 0x8580000000UL)
+#define CIA_SPARSE_MEM			(IDENT_ADDR + 0x8000000000UL)
+#define CIA_SPARSE_MEM_R2		(IDENT_ADDR + 0x8400000000UL)
+#define CIA_SPARSE_MEM_R3		(IDENT_ADDR + 0x8500000000UL)
+#define CIA_DENSE_MEM		        (IDENT_ADDR + 0x8600000000UL)
+#define CIA_BW_MEM			(IDENT_ADDR + 0x8800000000UL)
+#define CIA_BW_IO			(IDENT_ADDR + 0x8900000000UL)
+#define CIA_BW_CFG_0			(IDENT_ADDR + 0x8a00000000UL)
+#define CIA_BW_CFG_1			(IDENT_ADDR + 0x8b00000000UL)
+
+/*
+ * ALCOR's GRU ASIC registers
+ */
+#define GRU_INT_REQ			(IDENT_ADDR + 0x8780000000UL)
+#define GRU_INT_MASK			(IDENT_ADDR + 0x8780000040UL)
+#define GRU_INT_EDGE			(IDENT_ADDR + 0x8780000080UL)
+#define GRU_INT_HILO			(IDENT_ADDR + 0x87800000C0UL)
+#define GRU_INT_CLEAR			(IDENT_ADDR + 0x8780000100UL)
+
+#define GRU_CACHE_CNFG			(IDENT_ADDR + 0x8780000200UL)
+#define GRU_SCR				(IDENT_ADDR + 0x8780000300UL)
+#define GRU_LED				(IDENT_ADDR + 0x8780000800UL)
+#define GRU_RESET			(IDENT_ADDR + 0x8780000900UL)
+
+#define ALCOR_GRU_INT_REQ_BITS		0x800fffffUL
+#define XLT_GRU_INT_REQ_BITS		0x80003fffUL
+#define GRU_INT_REQ_BITS		(alpha_mv.sys.cia.gru_int_req_bits+0)
+
+/*
+ * PYXIS interrupt control registers
+ */
+#define PYXIS_INT_REQ			(IDENT_ADDR + 0x87A0000000UL)
+#define PYXIS_INT_MASK			(IDENT_ADDR + 0x87A0000040UL)
+#define PYXIS_INT_HILO			(IDENT_ADDR + 0x87A00000C0UL)
+#define PYXIS_INT_ROUTE			(IDENT_ADDR + 0x87A0000140UL)
+#define PYXIS_GPO			(IDENT_ADDR + 0x87A0000180UL)
+#define PYXIS_INT_CNFG			(IDENT_ADDR + 0x87A00001C0UL)
+#define PYXIS_RT_COUNT			(IDENT_ADDR + 0x87A0000200UL)
+#define PYXIS_INT_TIME			(IDENT_ADDR + 0x87A0000240UL)
+#define PYXIS_IIC_CTRL			(IDENT_ADDR + 0x87A00002C0UL)
+#define PYXIS_RESET			(IDENT_ADDR + 0x8780000900UL)
+
+/* Offset between ram physical addresses and pci64 DAC bus addresses.  */
+#define PYXIS_DAC_OFFSET		(1UL << 40)
+
+/*
+ * Data structure for handling CIA machine checks.
+ */
+
+/* System-specific info.  */
+struct el_CIA_sysdata_mcheck {
+	unsigned long	cpu_err0;
+	unsigned long	cpu_err1;
+	unsigned long	cia_err;
+	unsigned long	cia_stat;
+	unsigned long	err_mask;
+	unsigned long	cia_syn;
+	unsigned long	mem_err0;
+	unsigned long	mem_err1;
+	unsigned long	pci_err0;
+	unsigned long	pci_err1;
+	unsigned long	pci_err2;
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+/* Do not touch, this should *NOT* be static inline */
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * CIA (the 2117x PCI/memory support chipset for the EV5 (21164)
+ * series of processors uses a sparse address mapping scheme to
+ * get at PCI memory and I/O.
+ */
+
+/*
+ * Memory functions.  64-bit and 32-bit accesses are done through
+ * dense memory space, everything else through sparse space.
+ *
+ * For reading and writing 8 and 16 bit quantities we need to
+ * go through one of the three sparse address mapping regions
+ * and use the HAE_MEM CSR to provide some bits of the address.
+ * The following few routines use only sparse address region 1
+ * which gives 1Gbyte of accessible space which relates exactly
+ * to the amount of PCI memory mapping *into* system address space.
+ * See p 6-17 of the specification but it looks something like this:
+ *
+ * 21164 Address:
+ *
+ *          3         2         1
+ * 9876543210987654321098765432109876543210
+ * 1ZZZZ0.PCI.QW.Address............BBLL
+ *
+ * ZZ = SBZ
+ * BB = Byte offset
+ * LL = Transfer length
+ *
+ * PCI Address:
+ *
+ * 3         2         1
+ * 10987654321098765432109876543210
+ * HHH....PCI.QW.Address........ 00
+ *
+ * HHH = 31:29 HAE_MEM CSR
+ *
+ */
+
+#define vip	volatile int __force *
+#define vuip	volatile unsigned int __force *
+#define vulp	volatile unsigned long __force *
+
+__EXTERN_INLINE unsigned int cia_ioread8(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long result, base_and_type;
+
+	if (addr >= CIA_DENSE_MEM)
+		base_and_type = CIA_SPARSE_MEM + 0x00;
+	else
+		base_and_type = CIA_IO + 0x00;
+
+	/* We can use CIA_MEM_R1_MASK for io ports too, since it is large
+	   enough to cover all io ports, and smaller than CIA_IO.  */
+	addr &= CIA_MEM_R1_MASK;
+	result = *(vip) ((addr << 5) + base_and_type);
+	return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE void cia_iowrite8(u8 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long w, base_and_type;
+
+	if (addr >= CIA_DENSE_MEM)
+		base_and_type = CIA_SPARSE_MEM + 0x00;
+	else
+		base_and_type = CIA_IO + 0x00;
+
+	addr &= CIA_MEM_R1_MASK;
+	w = __kernel_insbl(b, addr & 3);
+	*(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE unsigned int cia_ioread16(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long result, base_and_type;
+
+	if (addr >= CIA_DENSE_MEM)
+		base_and_type = CIA_SPARSE_MEM + 0x08;
+	else
+		base_and_type = CIA_IO + 0x08;
+
+	addr &= CIA_MEM_R1_MASK;
+	result = *(vip) ((addr << 5) + base_and_type);
+	return __kernel_extwl(result, addr & 3);
+}
+
+__EXTERN_INLINE void cia_iowrite16(u16 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long w, base_and_type;
+
+	if (addr >= CIA_DENSE_MEM)
+		base_and_type = CIA_SPARSE_MEM + 0x08;
+	else
+		base_and_type = CIA_IO + 0x08;
+
+	addr &= CIA_MEM_R1_MASK;
+	w = __kernel_inswl(b, addr & 3);
+	*(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE unsigned int cia_ioread32(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < CIA_DENSE_MEM)
+		addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18;
+	return *(vuip)addr;
+}
+
+__EXTERN_INLINE void cia_iowrite32(u32 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < CIA_DENSE_MEM)
+		addr = ((addr - CIA_IO) << 5) + CIA_IO + 0x18;
+	*(vuip)addr = b;
+}
+
+__EXTERN_INLINE void __iomem *cia_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + CIA_IO);
+}
+
+__EXTERN_INLINE void __iomem *cia_ioremap(unsigned long addr,
+					  unsigned long size)
+{
+	return (void __iomem *)(addr + CIA_DENSE_MEM);
+}
+
+__EXTERN_INLINE int cia_is_ioaddr(unsigned long addr)
+{
+	return addr >= IDENT_ADDR + 0x8000000000UL;
+}
+
+__EXTERN_INLINE int cia_is_mmio(const volatile void __iomem *addr)
+{
+	return (unsigned long)addr >= CIA_DENSE_MEM;
+}
+
+__EXTERN_INLINE void __iomem *cia_bwx_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + CIA_BW_IO);
+}
+
+__EXTERN_INLINE void __iomem *cia_bwx_ioremap(unsigned long addr,
+					      unsigned long size)
+{
+	return (void __iomem *)(addr + CIA_BW_MEM);
+}
+
+__EXTERN_INLINE int cia_bwx_is_ioaddr(unsigned long addr)
+{
+	return addr >= IDENT_ADDR + 0x8000000000UL;
+}
+
+__EXTERN_INLINE int cia_bwx_is_mmio(const volatile void __iomem *addr)
+{
+	return (unsigned long)addr < CIA_BW_IO;
+}
+
+#undef vip
+#undef vuip
+#undef vulp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		cia
+#define cia_trivial_rw_bw	2
+#define cia_trivial_rw_lq	1
+#define cia_trivial_io_bw	0
+#define cia_trivial_io_lq	0
+#define cia_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		cia_bwx
+#define cia_bwx_trivial_rw_bw	1
+#define cia_bwx_trivial_rw_lq	1
+#define cia_bwx_trivial_io_bw	1
+#define cia_bwx_trivial_io_lq	1
+#define cia_bwx_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#undef __IO_PREFIX
+#ifdef CONFIG_ALPHA_PYXIS
+#define __IO_PREFIX		cia_bwx
+#else
+#define __IO_PREFIX		cia
+#endif
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_CIA__H__ */

arch/alpha/include/asm/core_irongate.h

@@ -0,0 +1,233 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_IRONGATE__H__
+#define __ALPHA_IRONGATE__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * IRONGATE is the internal name for the AMD-751 K7 core logic chipset
+ * which provides memory controller and PCI access for NAUTILUS-based
+ * EV6 (21264) systems.
+ *
+ * This file is based on:
+ *
+ * IronGate management library, (c) 1999 Alpha Processor, Inc.
+ * Copyright (C) 1999 Alpha Processor, Inc.,
+ *	(David Daniel, Stig Telfer, Soohoon Lee)
+ */
+
+/*
+ * The 21264 supports, and internally recognizes, a 44-bit physical
+ * address space that is divided equally between memory address space
+ * and I/O address space. Memory address space resides in the lower
+ * half of the physical address space (PA[43]=0) and I/O address space
+ * resides in the upper half of the physical address space (PA[43]=1).
+ */
+
+/*
+ * Irongate CSR map.  Some of the CSRs are 8 or 16 bits, but all access
+ * through the routines given is 32-bit.
+ *
+ * The first 0x40 bytes are standard as per the PCI spec.
+ */
+
+typedef volatile __u32	igcsr32;
+
+typedef struct {
+	igcsr32 dev_vendor;		/* 0x00 - device ID, vendor ID */
+	igcsr32 stat_cmd;		/* 0x04 - status, command */
+	igcsr32 class;			/* 0x08 - class code, rev ID */
+	igcsr32 latency;		/* 0x0C - header type, PCI latency */
+	igcsr32 bar0;			/* 0x10 - BAR0 - AGP */
+	igcsr32 bar1;			/* 0x14 - BAR1 - GART */
+	igcsr32 bar2;			/* 0x18 - Power Management reg block */
+
+	igcsr32 rsrvd0[6];		/* 0x1C-0x33 reserved */
+
+	igcsr32 capptr;			/* 0x34 - Capabilities pointer */
+
+	igcsr32 rsrvd1[2];		/* 0x38-0x3F reserved */
+
+	igcsr32 bacsr10;		/* 0x40 - base address chip selects */
+	igcsr32 bacsr32;		/* 0x44 - base address chip selects */
+	igcsr32 bacsr54_eccms761;	/* 0x48 - 751: base addr. chip selects
+						  761: ECC, mode/status */
+
+	igcsr32 rsrvd2[1];		/* 0x4C-0x4F reserved */
+
+	igcsr32 drammap;		/* 0x50 - address mapping control */
+	igcsr32 dramtm;			/* 0x54 - timing, driver strength */
+	igcsr32 dramms;			/* 0x58 - DRAM mode/status */
+
+	igcsr32 rsrvd3[1];		/* 0x5C-0x5F reserved */
+
+	igcsr32 biu0;			/* 0x60 - bus interface unit */
+	igcsr32 biusip;			/* 0x64 - Serial initialisation pkt */
+
+	igcsr32 rsrvd4[2];		/* 0x68-0x6F reserved */
+
+	igcsr32 mro;			/* 0x70 - memory request optimiser */
+
+	igcsr32 rsrvd5[3];		/* 0x74-0x7F reserved */
+
+	igcsr32 whami;			/* 0x80 - who am I */
+	igcsr32 pciarb;			/* 0x84 - PCI arbitration control */
+	igcsr32 pcicfg;			/* 0x88 - PCI config status */
+
+	igcsr32 rsrvd6[4];		/* 0x8C-0x9B reserved */
+
+	igcsr32 pci_mem;		/* 0x9C - PCI top of memory,
+						  761 only */
+
+	/* AGP (bus 1) control registers */
+	igcsr32 agpcap;			/* 0xA0 - AGP Capability Identifier */
+	igcsr32 agpstat;		/* 0xA4 - AGP status register */
+	igcsr32 agpcmd;			/* 0xA8 - AGP control register */
+	igcsr32 agpva;			/* 0xAC - AGP Virtual Address Space */
+	igcsr32 agpmode;		/* 0xB0 - AGP/GART mode control */
+} Irongate0;
+
+
+typedef struct {
+
+	igcsr32 dev_vendor;		/* 0x00 - Device and Vendor IDs */
+	igcsr32 stat_cmd;		/* 0x04 - Status and Command regs */
+	igcsr32 class;			/* 0x08 - subclass, baseclass etc */
+	igcsr32 htype;			/* 0x0C - header type (at 0x0E) */
+	igcsr32 rsrvd0[2];		/* 0x10-0x17 reserved */
+	igcsr32 busnos;			/* 0x18 - Primary, secondary bus nos */
+	igcsr32 io_baselim_regs;	/* 0x1C - IO base, IO lim, AGP status */
+	igcsr32	mem_baselim;		/* 0x20 - memory base, memory lim */
+	igcsr32 pfmem_baselim;		/* 0x24 - prefetchable base, lim */
+	igcsr32 rsrvd1[2];		/* 0x28-0x2F reserved */
+	igcsr32 io_baselim;		/* 0x30 - IO base, IO limit */
+	igcsr32 rsrvd2[2];		/* 0x34-0x3B - reserved */
+	igcsr32 interrupt;		/* 0x3C - interrupt, PCI bridge ctrl */
+
+} Irongate1;
+
+extern igcsr32 *IronECC;
+
+/*
+ * Memory spaces:
+ */
+
+/* Irongate is consistent with a subset of the Tsunami memory map */
+#ifdef USE_48_BIT_KSEG
+#define IRONGATE_BIAS 0x80000000000UL
+#else
+#define IRONGATE_BIAS 0x10000000000UL
+#endif
+
+
+#define IRONGATE_MEM		(IDENT_ADDR | IRONGATE_BIAS | 0x000000000UL)
+#define IRONGATE_IACK_SC	(IDENT_ADDR | IRONGATE_BIAS | 0x1F8000000UL)
+#define IRONGATE_IO		(IDENT_ADDR | IRONGATE_BIAS | 0x1FC000000UL)
+#define IRONGATE_CONF		(IDENT_ADDR | IRONGATE_BIAS | 0x1FE000000UL)
+
+/*
+ * PCI Configuration space accesses are formed like so:
+ *
+ * 0x1FE << 24 |  : 2 2 2 2 1 1 1 1 : 1 1 1 1 1 1 0 0 : 0 0 0 0 0 0 0 0 :
+ *                : 3 2 1 0 9 8 7 6 : 5 4 3 2 1 0 9 8 : 7 6 5 4 3 2 1 0 :
+ *                  ---bus numer---   -device-- -fun-   ---register----
+ */
+
+#define IGCSR(dev,fun,reg)	( IRONGATE_CONF | \
+				((dev)<<11) | \
+				((fun)<<8) | \
+				(reg) )
+
+#define IRONGATE0		((Irongate0 *) IGCSR(0, 0, 0))
+#define IRONGATE1		((Irongate1 *) IGCSR(1, 0, 0))
+
+/*
+ * Data structure for handling IRONGATE machine checks:
+ * This is the standard OSF logout frame
+ */
+
+#define SCB_Q_SYSERR	0x620			/* OSF definitions */
+#define SCB_Q_PROCERR	0x630
+#define SCB_Q_SYSMCHK	0x660
+#define SCB_Q_PROCMCHK	0x670
+
+struct el_IRONGATE_sysdata_mcheck {
+	__u32 FrameSize;                 /* Bytes, including this field */
+	__u32 FrameFlags;                /* <31> = Retry, <30> = Second Error */
+	__u32 CpuOffset;                 /* Offset to CPU-specific into */
+	__u32 SystemOffset;              /* Offset to system-specific info */
+	__u32 MCHK_Code;
+	__u32 MCHK_Frame_Rev;
+	__u64 I_STAT;
+	__u64 DC_STAT;
+	__u64 C_ADDR;
+	__u64 DC1_SYNDROME;
+	__u64 DC0_SYNDROME;
+	__u64 C_STAT;
+	__u64 C_STS;
+	__u64 RESERVED0;
+	__u64 EXC_ADDR;
+	__u64 IER_CM;
+	__u64 ISUM;
+	__u64 MM_STAT;
+	__u64 PAL_BASE;
+	__u64 I_CTL;
+	__u64 PCTX;
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * IRONGATE (AMD-751) PCI/memory support chip for the EV6 (21264) and
+ * K7 can only use linear accesses to get at PCI memory and I/O spaces.
+ */
+
+/*
+ * Memory functions.  All accesses are done through linear space.
+ */
+
+__EXTERN_INLINE void __iomem *irongate_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + IRONGATE_IO);
+}
+
+extern void __iomem *irongate_ioremap(unsigned long addr, unsigned long size);
+extern void irongate_iounmap(volatile void __iomem *addr);
+
+__EXTERN_INLINE int irongate_is_ioaddr(unsigned long addr)
+{
+	return addr >= IRONGATE_MEM;
+}
+
+__EXTERN_INLINE int irongate_is_mmio(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr;
+	return addr < IRONGATE_IO || addr >= IRONGATE_CONF;
+}
+
+#undef __IO_PREFIX
+#define __IO_PREFIX			irongate
+#define irongate_trivial_rw_bw		1
+#define irongate_trivial_rw_lq		1
+#define irongate_trivial_io_bw		1
+#define irongate_trivial_io_lq		1
+#define irongate_trivial_iounmap	0
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_IRONGATE__H__ */

arch/alpha/include/asm/core_lca.h

@@ -0,0 +1,362 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_LCA__H__
+#define __ALPHA_LCA__H__
+
+#include <asm/compiler.h>
+#include <asm/mce.h>
+
+/*
+ * Low Cost Alpha (LCA) definitions (these apply to 21066 and 21068,
+ * for example).
+ *
+ * This file is based on:
+ *
+ *	DECchip 21066 and DECchip 21068 Alpha AXP Microprocessors
+ *	Hardware Reference Manual; Digital Equipment Corp.; May 1994;
+ *	Maynard, MA; Order Number: EC-N2681-71.
+ */
+
+/*
+ * NOTE: The LCA uses a Host Address Extension (HAE) register to access
+ *	 PCI addresses that are beyond the first 27 bits of address
+ *	 space.  Updating the HAE requires an external cycle (and
+ *	 a memory barrier), which tends to be slow.  Instead of updating
+ *	 it on each sparse memory access, we keep the current HAE value
+ *	 cached in variable cache_hae.  Only if the cached HAE differs
+ *	 from the desired HAE value do we actually updated HAE register.
+ *	 The HAE register is preserved by the interrupt handler entry/exit
+ *	 code, so this scheme works even in the presence of interrupts.
+ *
+ * Dense memory space doesn't require the HAE, but is restricted to
+ * aligned 32 and 64 bit accesses.  Special Cycle and Interrupt
+ * Acknowledge cycles may also require the use of the HAE.  The LCA
+ * limits I/O address space to the bottom 24 bits of address space,
+ * but this easily covers the 16 bit ISA I/O address space.
+ */
+
+/*
+ * NOTE 2! The memory operations do not set any memory barriers, as
+ * it's not needed for cases like a frame buffer that is essentially
+ * memory-like.  You need to do them by hand if the operations depend
+ * on ordering.
+ *
+ * Similarly, the port I/O operations do a "mb" only after a write
+ * operation: if an mb is needed before (as in the case of doing
+ * memory mapped I/O first, and then a port I/O operation to the same
+ * device), it needs to be done by hand.
+ *
+ * After the above has bitten me 100 times, I'll give up and just do
+ * the mb all the time, but right now I'm hoping this will work out.
+ * Avoiding mb's may potentially be a noticeable speed improvement,
+ * but I can't honestly say I've tested it.
+ *
+ * Handling interrupts that need to do mb's to synchronize to
+ * non-interrupts is another fun race area.  Don't do it (because if
+ * you do, I'll have to do *everything* with interrupts disabled,
+ * ugh).
+ */
+
+/*
+ * Memory Controller registers:
+ */
+#define LCA_MEM_BCR0		(IDENT_ADDR + 0x120000000UL)
+#define LCA_MEM_BCR1		(IDENT_ADDR + 0x120000008UL)
+#define LCA_MEM_BCR2		(IDENT_ADDR + 0x120000010UL)
+#define LCA_MEM_BCR3		(IDENT_ADDR + 0x120000018UL)
+#define LCA_MEM_BMR0		(IDENT_ADDR + 0x120000020UL)
+#define LCA_MEM_BMR1		(IDENT_ADDR + 0x120000028UL)
+#define LCA_MEM_BMR2		(IDENT_ADDR + 0x120000030UL)
+#define LCA_MEM_BMR3		(IDENT_ADDR + 0x120000038UL)
+#define LCA_MEM_BTR0		(IDENT_ADDR + 0x120000040UL)
+#define LCA_MEM_BTR1		(IDENT_ADDR + 0x120000048UL)
+#define LCA_MEM_BTR2		(IDENT_ADDR + 0x120000050UL)
+#define LCA_MEM_BTR3		(IDENT_ADDR + 0x120000058UL)
+#define LCA_MEM_GTR		(IDENT_ADDR + 0x120000060UL)
+#define LCA_MEM_ESR		(IDENT_ADDR + 0x120000068UL)
+#define LCA_MEM_EAR		(IDENT_ADDR + 0x120000070UL)
+#define LCA_MEM_CAR		(IDENT_ADDR + 0x120000078UL)
+#define LCA_MEM_VGR		(IDENT_ADDR + 0x120000080UL)
+#define LCA_MEM_PLM		(IDENT_ADDR + 0x120000088UL)
+#define LCA_MEM_FOR		(IDENT_ADDR + 0x120000090UL)
+
+/*
+ * I/O Controller registers:
+ */
+#define LCA_IOC_HAE		(IDENT_ADDR + 0x180000000UL)
+#define LCA_IOC_CONF		(IDENT_ADDR + 0x180000020UL)
+#define LCA_IOC_STAT0		(IDENT_ADDR + 0x180000040UL)
+#define LCA_IOC_STAT1		(IDENT_ADDR + 0x180000060UL)
+#define LCA_IOC_TBIA		(IDENT_ADDR + 0x180000080UL)
+#define LCA_IOC_TB_ENA		(IDENT_ADDR + 0x1800000a0UL)
+#define LCA_IOC_SFT_RST		(IDENT_ADDR + 0x1800000c0UL)
+#define LCA_IOC_PAR_DIS		(IDENT_ADDR + 0x1800000e0UL)
+#define LCA_IOC_W_BASE0		(IDENT_ADDR + 0x180000100UL)
+#define LCA_IOC_W_BASE1		(IDENT_ADDR + 0x180000120UL)
+#define LCA_IOC_W_MASK0		(IDENT_ADDR + 0x180000140UL)
+#define LCA_IOC_W_MASK1		(IDENT_ADDR + 0x180000160UL)
+#define LCA_IOC_T_BASE0		(IDENT_ADDR + 0x180000180UL)
+#define LCA_IOC_T_BASE1		(IDENT_ADDR + 0x1800001a0UL)
+#define LCA_IOC_TB_TAG0		(IDENT_ADDR + 0x188000000UL)
+#define LCA_IOC_TB_TAG1		(IDENT_ADDR + 0x188000020UL)
+#define LCA_IOC_TB_TAG2		(IDENT_ADDR + 0x188000040UL)
+#define LCA_IOC_TB_TAG3		(IDENT_ADDR + 0x188000060UL)
+#define LCA_IOC_TB_TAG4		(IDENT_ADDR + 0x188000070UL)
+#define LCA_IOC_TB_TAG5		(IDENT_ADDR + 0x1880000a0UL)
+#define LCA_IOC_TB_TAG6		(IDENT_ADDR + 0x1880000c0UL)
+#define LCA_IOC_TB_TAG7		(IDENT_ADDR + 0x1880000e0UL)
+
+/*
+ * Memory spaces:
+ */
+#define LCA_IACK_SC		(IDENT_ADDR + 0x1a0000000UL)
+#define LCA_CONF		(IDENT_ADDR + 0x1e0000000UL)
+#define LCA_IO			(IDENT_ADDR + 0x1c0000000UL)
+#define LCA_SPARSE_MEM		(IDENT_ADDR + 0x200000000UL)
+#define LCA_DENSE_MEM		(IDENT_ADDR + 0x300000000UL)
+
+/*
+ * Bit definitions for I/O Controller status register 0:
+ */
+#define LCA_IOC_STAT0_CMD		0xf
+#define LCA_IOC_STAT0_ERR		(1<<4)
+#define LCA_IOC_STAT0_LOST		(1<<5)
+#define LCA_IOC_STAT0_THIT		(1<<6)
+#define LCA_IOC_STAT0_TREF		(1<<7)
+#define LCA_IOC_STAT0_CODE_SHIFT	8
+#define LCA_IOC_STAT0_CODE_MASK		0x7
+#define LCA_IOC_STAT0_P_NBR_SHIFT	13
+#define LCA_IOC_STAT0_P_NBR_MASK	0x7ffff
+
+#define LCA_HAE_ADDRESS		LCA_IOC_HAE
+
+/* LCA PMR Power Management register defines */
+#define LCA_PMR_ADDR	(IDENT_ADDR + 0x120000098UL)
+#define LCA_PMR_PDIV    0x7                     /* Primary clock divisor */
+#define LCA_PMR_ODIV    0x38                    /* Override clock divisor */
+#define LCA_PMR_INTO    0x40                    /* Interrupt override */
+#define LCA_PMR_DMAO    0x80                    /* DMA override */
+#define LCA_PMR_OCCEB   0xffff0000L             /* Override cycle counter - even bits */
+#define LCA_PMR_OCCOB   0xffff000000000000L     /* Override cycle counter - even bits */
+#define LCA_PMR_PRIMARY_MASK    0xfffffffffffffff8L
+
+/* LCA PMR Macros */
+
+#define LCA_READ_PMR        (*(volatile unsigned long *)LCA_PMR_ADDR)
+#define LCA_WRITE_PMR(d)    (*((volatile unsigned long *)LCA_PMR_ADDR) = (d))
+
+#define LCA_GET_PRIMARY(r)  ((r) & LCA_PMR_PDIV)
+#define LCA_GET_OVERRIDE(r) (((r) >> 3) & LCA_PMR_PDIV)
+#define LCA_SET_PRIMARY_CLOCK(r, c) ((r) = (((r) & LCA_PMR_PRIMARY_MASK)|(c)))
+
+/* LCA PMR Divisor values */
+#define LCA_PMR_DIV_1   0x0
+#define LCA_PMR_DIV_1_5 0x1
+#define LCA_PMR_DIV_2   0x2
+#define LCA_PMR_DIV_4   0x3
+#define LCA_PMR_DIV_8   0x4
+#define LCA_PMR_DIV_16  0x5
+#define LCA_PMR_DIV_MIN DIV_1
+#define LCA_PMR_DIV_MAX DIV_16
+
+
+/*
+ * Data structure for handling LCA machine checks.  Correctable errors
+ * result in a short logout frame, uncorrectable ones in a long one.
+ */
+struct el_lca_mcheck_short {
+	struct el_common	h;		/* common logout header */
+	unsigned long		esr;		/* error-status register */
+	unsigned long		ear;		/* error-address register */
+	unsigned long		dc_stat;	/* dcache status register */
+	unsigned long		ioc_stat0;	/* I/O controller status register 0 */
+	unsigned long		ioc_stat1;	/* I/O controller status register 1 */
+};
+
+struct el_lca_mcheck_long {
+	struct el_common	h;		/* common logout header */
+	unsigned long		pt[31];		/* PAL temps */
+	unsigned long		exc_addr;	/* exception address */
+	unsigned long		pad1[3];
+	unsigned long		pal_base;	/* PALcode base address */
+	unsigned long		hier;		/* hw interrupt enable */
+	unsigned long		hirr;		/* hw interrupt request */
+	unsigned long		mm_csr;		/* MMU control & status */
+	unsigned long		dc_stat;	/* data cache status */
+	unsigned long		dc_addr;	/* data cache addr register */
+	unsigned long		abox_ctl;	/* address box control register */
+	unsigned long		esr;		/* error status register */
+	unsigned long		ear;		/* error address register */
+	unsigned long		car;		/* cache control register */
+	unsigned long		ioc_stat0;	/* I/O controller status register 0 */
+	unsigned long		ioc_stat1;	/* I/O controller status register 1 */
+	unsigned long		va;		/* virtual address register */
+};
+
+union el_lca {
+	struct el_common *		c;
+	struct el_lca_mcheck_long *	l;
+	struct el_lca_mcheck_short *	s;
+};
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * Unlike Jensen, the Noname machines have no concept of local
+ * I/O---everything goes over the PCI bus.
+ *
+ * There is plenty room for optimization here.  In particular,
+ * the Alpha's insb/insw/extb/extw should be useful in moving
+ * data to/from the right byte-lanes.
+ */
+
+#define vip	volatile int __force *
+#define vuip	volatile unsigned int __force *
+#define vulp	volatile unsigned long __force *
+
+#define LCA_SET_HAE						\
+	do {							\
+		if (addr >= (1UL << 24)) {			\
+			unsigned long msb = addr & 0xf8000000;	\
+			addr -= msb;				\
+			set_hae(msb);				\
+		}						\
+	} while (0)
+
+
+__EXTERN_INLINE unsigned int lca_ioread8(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long result, base_and_type;
+
+	if (addr >= LCA_DENSE_MEM) {
+		addr -= LCA_DENSE_MEM;
+		LCA_SET_HAE;
+		base_and_type = LCA_SPARSE_MEM + 0x00;
+	} else {
+		addr -= LCA_IO;
+		base_and_type = LCA_IO + 0x00;
+	}
+
+	result = *(vip) ((addr << 5) + base_and_type);
+	return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE void lca_iowrite8(u8 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long w, base_and_type;
+
+	if (addr >= LCA_DENSE_MEM) {
+		addr -= LCA_DENSE_MEM;
+		LCA_SET_HAE;
+		base_and_type = LCA_SPARSE_MEM + 0x00;
+	} else {
+		addr -= LCA_IO;
+		base_and_type = LCA_IO + 0x00;
+	}
+
+	w = __kernel_insbl(b, addr & 3);
+	*(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE unsigned int lca_ioread16(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long result, base_and_type;
+
+	if (addr >= LCA_DENSE_MEM) {
+		addr -= LCA_DENSE_MEM;
+		LCA_SET_HAE;
+		base_and_type = LCA_SPARSE_MEM + 0x08;
+	} else {
+		addr -= LCA_IO;
+		base_and_type = LCA_IO + 0x08;
+	}
+
+	result = *(vip) ((addr << 5) + base_and_type);
+	return __kernel_extwl(result, addr & 3);
+}
+
+__EXTERN_INLINE void lca_iowrite16(u16 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long w, base_and_type;
+
+	if (addr >= LCA_DENSE_MEM) {
+		addr -= LCA_DENSE_MEM;
+		LCA_SET_HAE;
+		base_and_type = LCA_SPARSE_MEM + 0x08;
+	} else {
+		addr -= LCA_IO;
+		base_and_type = LCA_IO + 0x08;
+	}
+
+	w = __kernel_inswl(b, addr & 3);
+	*(vuip) ((addr << 5) + base_and_type) = w;
+}
+
+__EXTERN_INLINE unsigned int lca_ioread32(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < LCA_DENSE_MEM)
+		addr = ((addr - LCA_IO) << 5) + LCA_IO + 0x18;
+	return *(vuip)addr;
+}
+
+__EXTERN_INLINE void lca_iowrite32(u32 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	if (addr < LCA_DENSE_MEM)
+		addr = ((addr - LCA_IO) << 5) + LCA_IO + 0x18;
+	*(vuip)addr = b;
+}
+
+__EXTERN_INLINE void __iomem *lca_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + LCA_IO);
+}
+
+__EXTERN_INLINE void __iomem *lca_ioremap(unsigned long addr,
+					  unsigned long size)
+{
+	return (void __iomem *)(addr + LCA_DENSE_MEM);
+}
+
+__EXTERN_INLINE int lca_is_ioaddr(unsigned long addr)
+{
+	return addr >= IDENT_ADDR + 0x120000000UL;
+}
+
+__EXTERN_INLINE int lca_is_mmio(const volatile void __iomem *addr)
+{
+	return (unsigned long)addr >= LCA_DENSE_MEM;
+}
+
+#undef vip
+#undef vuip
+#undef vulp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		lca
+#define lca_trivial_rw_bw	2
+#define lca_trivial_rw_lq	1
+#define lca_trivial_io_bw	0
+#define lca_trivial_io_lq	0
+#define lca_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_LCA__H__ */

arch/alpha/include/asm/core_marvel.h

@@ -0,0 +1,378 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Marvel systems use the IO7 I/O chip provides PCI/PCIX/AGP access
+ *
+ * This file is based on:
+ *
+ * Marvel / EV7 System Programmer's Manual
+ * Revision 1.00
+ * 14 May 2001
+ */
+
+#ifndef __ALPHA_MARVEL__H__
+#define __ALPHA_MARVEL__H__
+
+#include <linux/types.h>
+#include <linux/spinlock.h>
+
+#include <asm/compiler.h>
+
+#define MARVEL_MAX_PIDS		 32 /* as long as we rely on 43-bit superpage */
+#define MARVEL_IRQ_VEC_PE_SHIFT	(10)
+#define MARVEL_IRQ_VEC_IRQ_MASK	((1 << MARVEL_IRQ_VEC_PE_SHIFT) - 1)
+#define MARVEL_NR_IRQS		\
+	(16 + (MARVEL_MAX_PIDS * (1 << MARVEL_IRQ_VEC_PE_SHIFT)))
+
+/*
+ * EV7 RBOX Registers
+ */
+typedef struct {
+	volatile unsigned long csr __attribute__((aligned(16)));
+} ev7_csr;
+
+typedef struct {
+	ev7_csr	RBOX_CFG;		/* 0x0000 */
+	ev7_csr	RBOX_NSVC;
+	ev7_csr	RBOX_EWVC;
+	ev7_csr	RBOX_WHAMI;
+	ev7_csr	RBOX_TCTL;		/* 0x0040 */
+	ev7_csr	RBOX_INT;
+	ev7_csr	RBOX_IMASK;
+	ev7_csr	RBOX_IREQ;
+	ev7_csr	RBOX_INTQ;		/* 0x0080 */
+	ev7_csr	RBOX_INTA;
+	ev7_csr	RBOX_IT;
+	ev7_csr	RBOX_SCRATCH1;
+	ev7_csr	RBOX_SCRATCH2;		/* 0x00c0 */
+	ev7_csr	RBOX_L_ERR;
+} ev7_csrs;
+
+/*
+ * EV7 CSR addressing macros
+ */
+#define EV7_MASK40(addr)        ((addr) & ((1UL << 41) - 1))
+#define EV7_KERN_ADDR(addr)	((void *)(IDENT_ADDR | EV7_MASK40(addr)))
+
+#define EV7_PE_MASK		0x1ffUL /* 9 bits ( 256 + mem/io ) */
+#define EV7_IPE(pe)		((~((long)(pe)) & EV7_PE_MASK) << 35)
+
+#define EV7_CSR_PHYS(pe, off)	(EV7_IPE(pe) | (0x7FFCUL << 20) | (off))
+#define EV7_CSRS_PHYS(pe)	(EV7_CSR_PHYS(pe, 0UL))
+
+#define EV7_CSR_KERN(pe, off)	(EV7_KERN_ADDR(EV7_CSR_PHYS(pe, off)))
+#define EV7_CSRS_KERN(pe)	(EV7_KERN_ADDR(EV7_CSRS_PHYS(pe)))
+
+#define EV7_CSR_OFFSET(name)	((unsigned long)&((ev7_csrs *)NULL)->name.csr)
+
+/*
+ * IO7 registers
+ */
+typedef struct {
+	volatile unsigned long csr __attribute__((aligned(64)));
+} io7_csr;
+
+typedef struct {
+	/* I/O Port Control Registers */
+	io7_csr	POx_CTRL;	       	/* 0x0000 */
+	io7_csr	POx_CACHE_CTL;
+	io7_csr POx_TIMER;
+	io7_csr POx_IO_ADR_EXT;
+	io7_csr	POx_MEM_ADR_EXT;	/* 0x0100 */
+	io7_csr POx_XCAL_CTRL;
+	io7_csr rsvd1[2];	/* ?? spec doesn't show 0x180 */
+	io7_csr POx_DM_SOURCE;		/* 0x0200 */
+	io7_csr POx_DM_DEST;
+	io7_csr POx_DM_SIZE;
+	io7_csr POx_DM_CTRL;
+	io7_csr rsvd2[4];		/* 0x0300 */
+
+	/* AGP Control Registers -- port 3 only */
+	io7_csr AGP_CAP_ID;		/* 0x0400 */
+	io7_csr AGP_STAT;
+	io7_csr	AGP_CMD;
+	io7_csr	rsvd3;
+
+	/* I/O Port Monitor Registers */
+	io7_csr	POx_MONCTL;		/* 0x0500 */
+	io7_csr POx_CTRA;
+	io7_csr POx_CTRB;
+	io7_csr POx_CTR56;
+	io7_csr POx_SCRATCH;		/* 0x0600 */
+	io7_csr POx_XTRA_A;
+	io7_csr POx_XTRA_TS;
+	io7_csr POx_XTRA_Z;
+	io7_csr rsvd4;			/* 0x0700 */
+	io7_csr POx_THRESHA;
+	io7_csr POx_THRESHB;
+	io7_csr rsvd5[33];
+
+	/* System Address Space Window Control Registers */
+
+	io7_csr POx_WBASE[4];		/* 0x1000 */
+	io7_csr POx_WMASK[4];
+	io7_csr POx_TBASE[4];
+	io7_csr POx_SG_TBIA;
+	io7_csr POx_MSI_WBASE;
+	io7_csr rsvd6[50];
+
+	/* I/O Port Error Registers */
+	io7_csr POx_ERR_SUM;
+	io7_csr POx_FIRST_ERR;
+	io7_csr POx_MSK_HEI;
+	io7_csr POx_TLB_ERR;
+	io7_csr POx_SPL_COMPLT;
+	io7_csr POx_TRANS_SUM;
+	io7_csr POx_FRC_PCI_ERR;
+	io7_csr POx_MULT_ERR;
+	io7_csr rsvd7[8];
+
+	/* I/O Port End of Interrupt Registers */
+	io7_csr EOI_DAT;
+	io7_csr rsvd8[7];
+	io7_csr POx_IACK_SPECIAL;
+	io7_csr rsvd9[103];
+} io7_ioport_csrs;
+
+typedef struct {
+	io7_csr IO_ASIC_REV;		/* 0x30.0000 */
+	io7_csr IO_SYS_REV;
+	io7_csr SER_CHAIN3;
+	io7_csr PO7_RST1;
+	io7_csr PO7_RST2;		/* 0x30.0100 */
+	io7_csr POx_RST[4];
+	io7_csr IO7_DWNH;
+	io7_csr IO7_MAF;
+	io7_csr IO7_MAF_TO;
+	io7_csr IO7_ACC_CLUMP;		/* 0x30.0300 */
+	io7_csr IO7_PMASK;
+	io7_csr IO7_IOMASK;
+	io7_csr IO7_UPH;
+	io7_csr IO7_UPH_TO;		/* 0x30.0400 */
+	io7_csr RBX_IREQ_OFF;
+	io7_csr RBX_INTA_OFF;
+	io7_csr INT_RTY;
+	io7_csr PO7_MONCTL;		/* 0x30.0500 */
+	io7_csr PO7_CTRA;
+	io7_csr PO7_CTRB;
+	io7_csr PO7_CTR56;
+	io7_csr PO7_SCRATCH;		/* 0x30.0600 */
+	io7_csr PO7_XTRA_A;
+	io7_csr PO7_XTRA_TS;
+	io7_csr PO7_XTRA_Z;
+	io7_csr PO7_PMASK;		/* 0x30.0700 */
+	io7_csr PO7_THRESHA;
+	io7_csr PO7_THRESHB;
+	io7_csr rsvd1[97];
+	io7_csr PO7_ERROR_SUM;		/* 0x30.2000 */
+	io7_csr PO7_BHOLE_MASK;
+	io7_csr PO7_HEI_MSK;
+	io7_csr PO7_CRD_MSK;
+	io7_csr PO7_UNCRR_SYM;		/* 0x30.2100 */
+	io7_csr PO7_CRRCT_SYM;
+	io7_csr PO7_ERR_PKT[2];
+	io7_csr PO7_UGBGE_SYM;		/* 0x30.2200 */
+	io7_csr rsbv2[887];
+	io7_csr PO7_LSI_CTL[128];	/* 0x31.0000 */
+	io7_csr rsvd3[123];
+	io7_csr HLT_CTL;		/* 0x31.3ec0 */
+	io7_csr HPI_CTL;		/* 0x31.3f00 */
+	io7_csr CRD_CTL;
+	io7_csr STV_CTL;
+	io7_csr HEI_CTL;
+	io7_csr PO7_MSI_CTL[16];	/* 0x31.4000 */
+	io7_csr rsvd4[240];
+
+	/*
+	 * Interrupt Diagnostic / Test
+	 */
+	struct {
+		io7_csr INT_PND;
+		io7_csr INT_CLR;
+		io7_csr INT_EOI;
+		io7_csr rsvd[29];
+	} INT_DIAG[4];
+	io7_csr rsvd5[125];	    	/* 0x31.a000 */
+	io7_csr MISC_PND;		/* 0x31.b800 */
+	io7_csr rsvd6[31];
+	io7_csr MSI_PND[16];		/* 0x31.c000 */
+	io7_csr rsvd7[16];
+	io7_csr MSI_CLR[16];		/* 0x31.c800 */
+} io7_port7_csrs;
+
+/* 
+ * IO7 DMA Window Base register (POx_WBASEx)
+ */
+#define wbase_m_ena  0x1
+#define wbase_m_sg   0x2
+#define wbase_m_dac  0x4
+#define wbase_m_addr 0xFFF00000
+union IO7_POx_WBASE {
+	struct {
+		unsigned ena : 1;	/* <0>			*/
+		unsigned sg : 1;	/* <1>			*/
+		unsigned dac : 1;	/* <2> -- window 3 only */
+		unsigned rsvd1 : 17; 
+		unsigned addr : 12;	/* <31:20>		*/
+		unsigned rsvd2 : 32;
+	} bits;
+	unsigned as_long[2];
+	unsigned as_quad;
+};
+
+/*
+ * IO7 IID (Interrupt IDentifier) format
+ *
+ * For level-sensative interrupts, int_num is encoded as:
+ *
+ *	bus/port	slot/device	INTx
+ *	<7:5>		<4:2>		<1:0>
+ */
+union IO7_IID {
+	struct {
+		unsigned int_num : 9;		/* <8:0>    	*/
+		unsigned tpu_mask : 4;		/* <12:9> rsvd	*/
+		unsigned msi : 1;		/* 13		*/
+		unsigned ipe : 10;		/* <23:14>	*/
+		unsigned long rsvd : 40;		
+	} bits;
+	unsigned int as_long[2];
+	unsigned long as_quad;
+};
+
+/*
+ * IO7 addressing macros
+ */
+#define IO7_KERN_ADDR(addr)	(EV7_KERN_ADDR(addr))
+
+#define IO7_PORT_MASK	   	0x07UL	/* 3 bits of port 	   */
+
+#define IO7_IPE(pe)		(EV7_IPE(pe))
+#define IO7_IPORT(port)		((~((long)(port)) & IO7_PORT_MASK) << 32)
+
+#define IO7_HOSE(pe, port)	(IO7_IPE(pe) | IO7_IPORT(port))
+
+#define IO7_MEM_PHYS(pe, port)	(IO7_HOSE(pe, port) | 0x00000000UL)
+#define IO7_CONF_PHYS(pe, port)	(IO7_HOSE(pe, port) | 0xFE000000UL)
+#define IO7_IO_PHYS(pe, port)	(IO7_HOSE(pe, port) | 0xFF000000UL)
+#define IO7_CSR_PHYS(pe, port, off) \
+                                (IO7_HOSE(pe, port) | 0xFF800000UL | (off))
+#define IO7_CSRS_PHYS(pe, port)	(IO7_CSR_PHYS(pe, port, 0UL))
+#define IO7_PORT7_CSRS_PHYS(pe) (IO7_CSR_PHYS(pe, 7, 0x300000UL))
+
+#define IO7_MEM_KERN(pe, port)      (IO7_KERN_ADDR(IO7_MEM_PHYS(pe, port)))
+#define IO7_CONF_KERN(pe, port)     (IO7_KERN_ADDR(IO7_CONF_PHYS(pe, port)))
+#define IO7_IO_KERN(pe, port)       (IO7_KERN_ADDR(IO7_IO_PHYS(pe, port)))
+#define IO7_CSR_KERN(pe, port, off) (IO7_KERN_ADDR(IO7_CSR_PHYS(pe,port,off)))
+#define IO7_CSRS_KERN(pe, port)     (IO7_KERN_ADDR(IO7_CSRS_PHYS(pe, port)))
+#define IO7_PORT7_CSRS_KERN(pe)	    (IO7_KERN_ADDR(IO7_PORT7_CSRS_PHYS(pe)))
+
+#define IO7_PLL_RNGA(pll)	(((pll) >> 3) & 0x7)
+#define IO7_PLL_RNGB(pll)	(((pll) >> 6) & 0x7)
+
+#define IO7_MEM_SPACE		(2UL * 1024 * 1024 * 1024)	/* 2GB MEM */
+#define IO7_IO_SPACE		(8UL * 1024 * 1024)		/* 8MB I/O */
+
+ 
+/* 
+ * Offset between ram physical addresses and pci64 DAC addresses
+ */
+#define IO7_DAC_OFFSET		(1UL << 49)
+
+/*
+ * This is needed to satisify the IO() macro used in initializing the machvec
+ */
+#define MARVEL_IACK_SC 							\
+        ((unsigned long)						\
+	 (&(((io7_ioport_csrs *)IO7_CSRS_KERN(0, 0))->POx_IACK_SPECIAL)))
+
+#ifdef __KERNEL__
+
+/*
+ * IO7 structs
+ */
+#define IO7_NUM_PORTS 4
+#define IO7_AGP_PORT  3
+
+struct io7_port {
+	struct io7 *io7;
+	struct pci_controller *hose;
+
+	int enabled;
+	unsigned int port;
+	io7_ioport_csrs *csrs;
+
+	unsigned long saved_wbase[4];
+	unsigned long saved_wmask[4];
+	unsigned long saved_tbase[4];
+};
+
+struct io7 {
+	struct io7 *next;
+
+	unsigned int pe;
+	io7_port7_csrs *csrs;
+	struct io7_port ports[IO7_NUM_PORTS];
+
+	raw_spinlock_t irq_lock;
+};
+
+#ifndef __EXTERN_INLINE
+# define __EXTERN_INLINE extern inline
+# define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions. All access through linear space.
+ */
+
+/*
+ * Memory functions.  All accesses through linear space.
+ */
+
+#define vucp	volatile unsigned char __force *
+#define vusp	volatile unsigned short __force *
+
+extern unsigned int marvel_ioread8(const void __iomem *);
+extern void marvel_iowrite8(u8 b, void __iomem *);
+
+__EXTERN_INLINE unsigned int marvel_ioread16(const void __iomem *addr)
+{
+	return __kernel_ldwu(*(vusp)addr);
+}
+
+__EXTERN_INLINE void marvel_iowrite16(u16 b, void __iomem *addr)
+{
+	__kernel_stw(b, *(vusp)addr);
+}
+
+extern void __iomem *marvel_ioremap(unsigned long addr, unsigned long size);
+extern void marvel_iounmap(volatile void __iomem *addr);
+extern void __iomem *marvel_ioportmap (unsigned long addr);
+
+__EXTERN_INLINE int marvel_is_ioaddr(unsigned long addr)
+{
+	return (addr >> 40) & 1;
+}
+
+extern int marvel_is_mmio(const volatile void __iomem *);
+
+#undef vucp
+#undef vusp
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		marvel
+#define marvel_trivial_rw_bw	1
+#define marvel_trivial_rw_lq	1
+#define marvel_trivial_io_bw	0
+#define marvel_trivial_io_lq	1
+#define marvel_trivial_iounmap	0
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+# undef __EXTERN_INLINE
+# undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_MARVEL__H__ */

arch/alpha/include/asm/core_mcpcia.h

@@ -0,0 +1,382 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_MCPCIA__H__
+#define __ALPHA_MCPCIA__H__
+
+/* Define to experiment with fitting everything into one 128MB HAE window.
+   One window per bus, that is.  */
+#define MCPCIA_ONE_HAE_WINDOW 1
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+#include <asm/mce.h>
+
+/*
+ * MCPCIA is the internal name for a core logic chipset which provides
+ * PCI access for the RAWHIDE family of systems.
+ *
+ * This file is based on:
+ *
+ * RAWHIDE System Programmer's Manual
+ * 16-May-96
+ * Rev. 1.4
+ *
+ */
+
+/*------------------------------------------------------------------------**
+**                                                                        **
+**  I/O procedures                                                        **
+**                                                                        **
+**      inport[b|w|t|l], outport[b|w|t|l] 8:16:24:32 IO xfers             **
+**	inportbxt: 8 bits only                                            **
+**      inport:    alias of inportw                                       **
+**      outport:   alias of outportw                                      **
+**                                                                        **
+**      inmem[b|w|t|l], outmem[b|w|t|l] 8:16:24:32 ISA memory xfers       **
+**	inmembxt: 8 bits only                                             **
+**      inmem:    alias of inmemw                                         **
+**      outmem:   alias of outmemw                                        **
+**                                                                        **
+**------------------------------------------------------------------------*/
+
+
+/* MCPCIA ADDRESS BIT DEFINITIONS
+ *
+ *  3333 3333 3322 2222 2222 1111 1111 11
+ *  9876 5432 1098 7654 3210 9876 5432 1098 7654 3210
+ *  ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
+ *  1                                             000
+ *  ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
+ *  |                                             |\|
+ *  |                               Byte Enable --+ |
+ *  |                             Transfer Length --+
+ *  +-- IO space, not cached
+ *
+ *   Byte      Transfer
+ *   Enable    Length    Transfer  Byte    Address
+ *   adr<6:5>  adr<4:3>  Length    Enable  Adder
+ *   ---------------------------------------------
+ *      00        00      Byte      1110   0x000
+ *      01        00      Byte      1101   0x020
+ *      10        00      Byte      1011   0x040
+ *      11        00      Byte      0111   0x060
+ *
+ *      00        01      Word      1100   0x008
+ *      01        01      Word      1001   0x028 <= Not supported in this code.
+ *      10        01      Word      0011   0x048
+ *
+ *      00        10      Tribyte   1000   0x010
+ *      01        10      Tribyte   0001   0x030
+ *
+ *      10        11      Longword  0000   0x058
+ *
+ *      Note that byte enables are asserted low.
+ *
+ */
+
+#define MCPCIA_MAX_HOSES 4
+
+#define MCPCIA_MID(m)		((unsigned long)(m) << 33)
+
+/* Dodge has PCI0 and PCI1 at MID 4 and 5 respectively. 
+   Durango adds PCI2 and PCI3 at MID 6 and 7 respectively.  */
+#define MCPCIA_HOSE2MID(h)	((h) + 4)
+
+#define MCPCIA_MEM_MASK 0x07ffffff /* SPARSE Mem region mask is 27 bits */
+
+/*
+ * Memory spaces:
+ */
+#define MCPCIA_SPARSE(m)	(IDENT_ADDR + 0xf000000000UL + MCPCIA_MID(m))
+#define MCPCIA_DENSE(m)		(IDENT_ADDR + 0xf100000000UL + MCPCIA_MID(m))
+#define MCPCIA_IO(m)		(IDENT_ADDR + 0xf180000000UL + MCPCIA_MID(m))
+#define MCPCIA_CONF(m)		(IDENT_ADDR + 0xf1c0000000UL + MCPCIA_MID(m))
+#define MCPCIA_CSR(m)		(IDENT_ADDR + 0xf1e0000000UL + MCPCIA_MID(m))
+#define MCPCIA_IO_IACK(m)	(IDENT_ADDR + 0xf1f0000000UL + MCPCIA_MID(m))
+#define MCPCIA_DENSE_IO(m)	(IDENT_ADDR + 0xe1fc000000UL + MCPCIA_MID(m))
+#define MCPCIA_DENSE_CONF(m)	(IDENT_ADDR + 0xe1fe000000UL + MCPCIA_MID(m))
+
+/*
+ *  General Registers
+ */
+#define MCPCIA_REV(m)		(MCPCIA_CSR(m) + 0x000)
+#define MCPCIA_WHOAMI(m)	(MCPCIA_CSR(m) + 0x040)
+#define MCPCIA_PCI_LAT(m)	(MCPCIA_CSR(m) + 0x080)
+#define MCPCIA_CAP_CTRL(m)	(MCPCIA_CSR(m) + 0x100)
+#define MCPCIA_HAE_MEM(m)	(MCPCIA_CSR(m) + 0x400)
+#define MCPCIA_HAE_IO(m)	(MCPCIA_CSR(m) + 0x440)
+#define _MCPCIA_IACK_SC(m)	(MCPCIA_CSR(m) + 0x480)
+#define MCPCIA_HAE_DENSE(m)	(MCPCIA_CSR(m) + 0x4C0)
+
+/*
+ * Interrupt Control registers
+ */
+#define MCPCIA_INT_CTL(m)	(MCPCIA_CSR(m) + 0x500)
+#define MCPCIA_INT_REQ(m)	(MCPCIA_CSR(m) + 0x540)
+#define MCPCIA_INT_TARG(m)	(MCPCIA_CSR(m) + 0x580)
+#define MCPCIA_INT_ADR(m)	(MCPCIA_CSR(m) + 0x5C0)
+#define MCPCIA_INT_ADR_EXT(m)	(MCPCIA_CSR(m) + 0x600)
+#define MCPCIA_INT_MASK0(m)	(MCPCIA_CSR(m) + 0x640)
+#define MCPCIA_INT_MASK1(m)	(MCPCIA_CSR(m) + 0x680)
+#define MCPCIA_INT_ACK0(m)	(MCPCIA_CSR(m) + 0x10003f00)
+#define MCPCIA_INT_ACK1(m)	(MCPCIA_CSR(m) + 0x10003f40)
+
+/*
+ * Performance Monitor registers
+ */
+#define MCPCIA_PERF_MON(m)	(MCPCIA_CSR(m) + 0x300)
+#define MCPCIA_PERF_CONT(m)	(MCPCIA_CSR(m) + 0x340)
+
+/*
+ * Diagnostic Registers
+ */
+#define MCPCIA_CAP_DIAG(m)	(MCPCIA_CSR(m) + 0x700)
+#define MCPCIA_TOP_OF_MEM(m)	(MCPCIA_CSR(m) + 0x7C0)
+
+/*
+ * Error registers
+ */
+#define MCPCIA_MC_ERR0(m)	(MCPCIA_CSR(m) + 0x800)
+#define MCPCIA_MC_ERR1(m)	(MCPCIA_CSR(m) + 0x840)
+#define MCPCIA_CAP_ERR(m)	(MCPCIA_CSR(m) + 0x880)
+#define MCPCIA_PCI_ERR1(m)	(MCPCIA_CSR(m) + 0x1040)
+#define MCPCIA_MDPA_STAT(m)	(MCPCIA_CSR(m) + 0x4000)
+#define MCPCIA_MDPA_SYN(m)	(MCPCIA_CSR(m) + 0x4040)
+#define MCPCIA_MDPA_DIAG(m)	(MCPCIA_CSR(m) + 0x4080)
+#define MCPCIA_MDPB_STAT(m)	(MCPCIA_CSR(m) + 0x8000)
+#define MCPCIA_MDPB_SYN(m)	(MCPCIA_CSR(m) + 0x8040)
+#define MCPCIA_MDPB_DIAG(m)	(MCPCIA_CSR(m) + 0x8080)
+
+/*
+ * PCI Address Translation Registers.
+ */
+#define MCPCIA_SG_TBIA(m)	(MCPCIA_CSR(m) + 0x1300)
+#define MCPCIA_HBASE(m)		(MCPCIA_CSR(m) + 0x1340)
+
+#define MCPCIA_W0_BASE(m)	(MCPCIA_CSR(m) + 0x1400)
+#define MCPCIA_W0_MASK(m)	(MCPCIA_CSR(m) + 0x1440)
+#define MCPCIA_T0_BASE(m)	(MCPCIA_CSR(m) + 0x1480)
+
+#define MCPCIA_W1_BASE(m)	(MCPCIA_CSR(m) + 0x1500)
+#define MCPCIA_W1_MASK(m)	(MCPCIA_CSR(m) + 0x1540)
+#define MCPCIA_T1_BASE(m)	(MCPCIA_CSR(m) + 0x1580)
+
+#define MCPCIA_W2_BASE(m)	(MCPCIA_CSR(m) + 0x1600)
+#define MCPCIA_W2_MASK(m)	(MCPCIA_CSR(m) + 0x1640)
+#define MCPCIA_T2_BASE(m)	(MCPCIA_CSR(m) + 0x1680)
+
+#define MCPCIA_W3_BASE(m)	(MCPCIA_CSR(m) + 0x1700)
+#define MCPCIA_W3_MASK(m)	(MCPCIA_CSR(m) + 0x1740)
+#define MCPCIA_T3_BASE(m)	(MCPCIA_CSR(m) + 0x1780)
+
+/* Hack!  Only words for bus 0.  */
+
+#ifndef MCPCIA_ONE_HAE_WINDOW
+#define MCPCIA_HAE_ADDRESS	MCPCIA_HAE_MEM(4)
+#endif
+#define MCPCIA_IACK_SC		_MCPCIA_IACK_SC(4)
+
+/* 
+ * The canonical non-remaped I/O and MEM addresses have these values
+ * subtracted out.  This is arranged so that folks manipulating ISA
+ * devices can use their familiar numbers and have them map to bus 0.
+ */
+
+#define MCPCIA_IO_BIAS		MCPCIA_IO(4)
+#define MCPCIA_MEM_BIAS		MCPCIA_DENSE(4)
+
+/* Offset between ram physical addresses and pci64 DAC bus addresses.  */
+#define MCPCIA_DAC_OFFSET	(1UL << 40)
+
+/*
+ * Data structure for handling MCPCIA machine checks:
+ */
+struct el_MCPCIA_uncorrected_frame_mcheck {
+	struct el_common header;
+	struct el_common_EV5_uncorrectable_mcheck procdata;
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * MCPCIA, the RAWHIDE family PCI/memory support chipset for the EV5 (21164)
+ * and EV56 (21164a) processors, can use either a sparse address mapping
+ * scheme, or the so-called byte-word PCI address space, to get at PCI memory
+ * and I/O.
+ *
+ * Unfortunately, we can't use BWIO with EV5, so for now, we always use SPARSE.
+ */
+
+/*
+ * Memory functions.  64-bit and 32-bit accesses are done through
+ * dense memory space, everything else through sparse space.
+ *
+ * For reading and writing 8 and 16 bit quantities we need to
+ * go through one of the three sparse address mapping regions
+ * and use the HAE_MEM CSR to provide some bits of the address.
+ * The following few routines use only sparse address region 1
+ * which gives 1Gbyte of accessible space which relates exactly
+ * to the amount of PCI memory mapping *into* system address space.
+ * See p 6-17 of the specification but it looks something like this:
+ *
+ * 21164 Address:
+ *
+ *          3         2         1
+ * 9876543210987654321098765432109876543210
+ * 1ZZZZ0.PCI.QW.Address............BBLL
+ *
+ * ZZ = SBZ
+ * BB = Byte offset
+ * LL = Transfer length
+ *
+ * PCI Address:
+ *
+ * 3         2         1
+ * 10987654321098765432109876543210
+ * HHH....PCI.QW.Address........ 00
+ *
+ * HHH = 31:29 HAE_MEM CSR
+ *
+ */
+
+#define vip	volatile int __force *
+#define vuip	volatile unsigned int __force *
+
+#ifndef MCPCIA_ONE_HAE_WINDOW
+#define MCPCIA_FROB_MMIO						\
+	if (__mcpcia_is_mmio(hose)) {					\
+		set_hae(hose & 0xffffffff);				\
+		hose = hose - MCPCIA_DENSE(4) + MCPCIA_SPARSE(4);	\
+	}
+#else
+#define MCPCIA_FROB_MMIO						\
+	if (__mcpcia_is_mmio(hose)) {					\
+		hose = hose - MCPCIA_DENSE(4) + MCPCIA_SPARSE(4);	\
+	}
+#endif
+
+extern inline int __mcpcia_is_mmio(unsigned long addr)
+{
+	return (addr & 0x80000000UL) == 0;
+}
+
+__EXTERN_INLINE unsigned int mcpcia_ioread8(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK;
+	unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK;
+	unsigned long result;
+
+	MCPCIA_FROB_MMIO;
+
+	result = *(vip) ((addr << 5) + hose + 0x00);
+	return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE void mcpcia_iowrite8(u8 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK;
+	unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK;
+	unsigned long w;
+
+	MCPCIA_FROB_MMIO;
+
+	w = __kernel_insbl(b, addr & 3);
+	*(vuip) ((addr << 5) + hose + 0x00) = w;
+}
+
+__EXTERN_INLINE unsigned int mcpcia_ioread16(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK;
+	unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK;
+	unsigned long result;
+
+	MCPCIA_FROB_MMIO;
+
+	result = *(vip) ((addr << 5) + hose + 0x08);
+	return __kernel_extwl(result, addr & 3);
+}
+
+__EXTERN_INLINE void mcpcia_iowrite16(u16 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr & MCPCIA_MEM_MASK;
+	unsigned long hose = (unsigned long)xaddr & ~MCPCIA_MEM_MASK;
+	unsigned long w;
+
+	MCPCIA_FROB_MMIO;
+
+	w = __kernel_inswl(b, addr & 3);
+	*(vuip) ((addr << 5) + hose + 0x08) = w;
+}
+
+__EXTERN_INLINE unsigned int mcpcia_ioread32(const void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr;
+
+	if (!__mcpcia_is_mmio(addr))
+		addr = ((addr & 0xffff) << 5) + (addr & ~0xfffful) + 0x18;
+
+	return *(vuip)addr;
+}
+
+__EXTERN_INLINE void mcpcia_iowrite32(u32 b, void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr;
+
+	if (!__mcpcia_is_mmio(addr))
+		addr = ((addr & 0xffff) << 5) + (addr & ~0xfffful) + 0x18;
+
+	*(vuip)addr = b;
+}
+
+
+__EXTERN_INLINE void __iomem *mcpcia_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + MCPCIA_IO_BIAS);
+}
+
+__EXTERN_INLINE void __iomem *mcpcia_ioremap(unsigned long addr,
+					     unsigned long size)
+{
+	return (void __iomem *)(addr + MCPCIA_MEM_BIAS);
+}
+
+__EXTERN_INLINE int mcpcia_is_ioaddr(unsigned long addr)
+{
+	return addr >= MCPCIA_SPARSE(0);
+}
+
+__EXTERN_INLINE int mcpcia_is_mmio(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	return __mcpcia_is_mmio(addr);
+}
+
+#undef MCPCIA_FROB_MMIO
+
+#undef vip
+#undef vuip
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		mcpcia
+#define mcpcia_trivial_rw_bw	2
+#define mcpcia_trivial_rw_lq	1
+#define mcpcia_trivial_io_bw	0
+#define mcpcia_trivial_io_lq	0
+#define mcpcia_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_MCPCIA__H__ */

arch/alpha/include/asm/core_polaris.h

@@ -0,0 +1,111 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_POLARIS__H__
+#define __ALPHA_POLARIS__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * POLARIS is the internal name for a core logic chipset which provides
+ * memory controller and PCI access for the 21164PC chip based systems.
+ *
+ * This file is based on:
+ *
+ * Polaris System Controller
+ * Device Functional Specification
+ * 22-Jan-98
+ * Rev. 4.2
+ *
+ */
+
+/* Polaris memory regions */
+#define POLARIS_SPARSE_MEM_BASE		(IDENT_ADDR + 0xf800000000UL)
+#define POLARIS_DENSE_MEM_BASE		(IDENT_ADDR + 0xf900000000UL)
+#define POLARIS_SPARSE_IO_BASE		(IDENT_ADDR + 0xf980000000UL)
+#define POLARIS_SPARSE_CONFIG_BASE	(IDENT_ADDR + 0xf9c0000000UL)
+#define POLARIS_IACK_BASE		(IDENT_ADDR + 0xf9f8000000UL)
+#define POLARIS_DENSE_IO_BASE		(IDENT_ADDR + 0xf9fc000000UL)
+#define POLARIS_DENSE_CONFIG_BASE	(IDENT_ADDR + 0xf9fe000000UL)
+
+#define POLARIS_IACK_SC			POLARIS_IACK_BASE
+
+/* The Polaris command/status registers live in PCI Config space for
+ * bus 0/device 0.  As such, they may be bytes, words, or doublewords.
+ */
+#define POLARIS_W_VENID		(POLARIS_DENSE_CONFIG_BASE)
+#define POLARIS_W_DEVID		(POLARIS_DENSE_CONFIG_BASE+2)
+#define POLARIS_W_CMD		(POLARIS_DENSE_CONFIG_BASE+4)
+#define POLARIS_W_STATUS	(POLARIS_DENSE_CONFIG_BASE+6)
+
+/*
+ * Data structure for handling POLARIS machine checks:
+ */
+struct el_POLARIS_sysdata_mcheck {
+    u_long      psc_status;
+    u_long	psc_pcictl0;
+    u_long	psc_pcictl1;
+    u_long	psc_pcictl2;
+};
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * POLARIS, the PCI/memory support chipset for the PCA56 (21164PC)
+ * processors, can use either a sparse address  mapping scheme, or the 
+ * so-called byte-word PCI address space, to get at PCI memory and I/O.
+ *
+ * However, we will support only the BWX form.
+ */
+
+/*
+ * Memory functions.  Polaris allows all accesses (byte/word
+ * as well as long/quad) to be done through dense space.
+ *
+ * We will only support DENSE access via BWX insns.
+ */
+
+__EXTERN_INLINE void __iomem *polaris_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + POLARIS_DENSE_IO_BASE);
+}
+
+__EXTERN_INLINE void __iomem *polaris_ioremap(unsigned long addr,
+					      unsigned long size)
+{
+	return (void __iomem *)(addr + POLARIS_DENSE_MEM_BASE);
+}
+
+__EXTERN_INLINE int polaris_is_ioaddr(unsigned long addr)
+{
+	return addr >= POLARIS_SPARSE_MEM_BASE;
+}
+
+__EXTERN_INLINE int polaris_is_mmio(const volatile void __iomem *addr)
+{
+	return (unsigned long)addr < POLARIS_SPARSE_IO_BASE;
+}
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		polaris
+#define polaris_trivial_rw_bw	1
+#define polaris_trivial_rw_lq	1
+#define polaris_trivial_io_bw	1
+#define polaris_trivial_io_lq	1
+#define polaris_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_POLARIS__H__ */

arch/alpha/include/asm/core_t2.h

@@ -0,0 +1,615 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_T2__H__
+#define __ALPHA_T2__H__
+
+/* Fit everything into one 128MB HAE window. */
+#define T2_ONE_HAE_WINDOW 1
+
+#include <linux/types.h>
+#include <linux/spinlock.h>
+#include <asm/compiler.h>
+
+/*
+ * T2 is the internal name for the core logic chipset which provides
+ * memory controller and PCI access for the SABLE-based systems.
+ *
+ * This file is based on:
+ *
+ * SABLE I/O Specification
+ * Revision/Update Information: 1.3
+ *
+ * jestabro@amt.tay1.dec.com Initial Version.
+ *
+ */
+
+#define T2_MEM_R1_MASK 0x07ffffff  /* Mem sparse region 1 mask is 27 bits */
+
+/* GAMMA-SABLE is a SABLE with EV5-based CPUs */
+/* All LYNX machines, EV4 or EV5, use the GAMMA bias also */
+#define _GAMMA_BIAS		0x8000000000UL
+
+#if defined(CONFIG_ALPHA_GENERIC)
+#define GAMMA_BIAS		alpha_mv.sys.t2.gamma_bias
+#elif defined(CONFIG_ALPHA_GAMMA)
+#define GAMMA_BIAS		_GAMMA_BIAS
+#else
+#define GAMMA_BIAS		0
+#endif
+
+/*
+ * Memory spaces:
+ */
+#define T2_CONF		        (IDENT_ADDR + GAMMA_BIAS + 0x390000000UL)
+#define T2_IO			(IDENT_ADDR + GAMMA_BIAS + 0x3a0000000UL)
+#define T2_SPARSE_MEM		(IDENT_ADDR + GAMMA_BIAS + 0x200000000UL)
+#define T2_DENSE_MEM	        (IDENT_ADDR + GAMMA_BIAS + 0x3c0000000UL)
+
+#define T2_IOCSR		(IDENT_ADDR + GAMMA_BIAS + 0x38e000000UL)
+#define T2_CERR1		(IDENT_ADDR + GAMMA_BIAS + 0x38e000020UL)
+#define T2_CERR2		(IDENT_ADDR + GAMMA_BIAS + 0x38e000040UL)
+#define T2_CERR3		(IDENT_ADDR + GAMMA_BIAS + 0x38e000060UL)
+#define T2_PERR1		(IDENT_ADDR + GAMMA_BIAS + 0x38e000080UL)
+#define T2_PERR2		(IDENT_ADDR + GAMMA_BIAS + 0x38e0000a0UL)
+#define T2_PSCR			(IDENT_ADDR + GAMMA_BIAS + 0x38e0000c0UL)
+#define T2_HAE_1		(IDENT_ADDR + GAMMA_BIAS + 0x38e0000e0UL)
+#define T2_HAE_2		(IDENT_ADDR + GAMMA_BIAS + 0x38e000100UL)
+#define T2_HBASE		(IDENT_ADDR + GAMMA_BIAS + 0x38e000120UL)
+#define T2_WBASE1		(IDENT_ADDR + GAMMA_BIAS + 0x38e000140UL)
+#define T2_WMASK1		(IDENT_ADDR + GAMMA_BIAS + 0x38e000160UL)
+#define T2_TBASE1		(IDENT_ADDR + GAMMA_BIAS + 0x38e000180UL)
+#define T2_WBASE2		(IDENT_ADDR + GAMMA_BIAS + 0x38e0001a0UL)
+#define T2_WMASK2		(IDENT_ADDR + GAMMA_BIAS + 0x38e0001c0UL)
+#define T2_TBASE2		(IDENT_ADDR + GAMMA_BIAS + 0x38e0001e0UL)
+#define T2_TLBBR		(IDENT_ADDR + GAMMA_BIAS + 0x38e000200UL)
+#define T2_IVR			(IDENT_ADDR + GAMMA_BIAS + 0x38e000220UL)
+#define T2_HAE_3		(IDENT_ADDR + GAMMA_BIAS + 0x38e000240UL)
+#define T2_HAE_4		(IDENT_ADDR + GAMMA_BIAS + 0x38e000260UL)
+
+/* The CSRs below are T3/T4 only */
+#define T2_WBASE3		(IDENT_ADDR + GAMMA_BIAS + 0x38e000280UL)
+#define T2_WMASK3		(IDENT_ADDR + GAMMA_BIAS + 0x38e0002a0UL)
+#define T2_TBASE3		(IDENT_ADDR + GAMMA_BIAS + 0x38e0002c0UL)
+
+#define T2_TDR0			(IDENT_ADDR + GAMMA_BIAS + 0x38e000300UL)
+#define T2_TDR1			(IDENT_ADDR + GAMMA_BIAS + 0x38e000320UL)
+#define T2_TDR2			(IDENT_ADDR + GAMMA_BIAS + 0x38e000340UL)
+#define T2_TDR3			(IDENT_ADDR + GAMMA_BIAS + 0x38e000360UL)
+#define T2_TDR4			(IDENT_ADDR + GAMMA_BIAS + 0x38e000380UL)
+#define T2_TDR5			(IDENT_ADDR + GAMMA_BIAS + 0x38e0003a0UL)
+#define T2_TDR6			(IDENT_ADDR + GAMMA_BIAS + 0x38e0003c0UL)
+#define T2_TDR7			(IDENT_ADDR + GAMMA_BIAS + 0x38e0003e0UL)
+
+#define T2_WBASE4		(IDENT_ADDR + GAMMA_BIAS + 0x38e000400UL)
+#define T2_WMASK4		(IDENT_ADDR + GAMMA_BIAS + 0x38e000420UL)
+#define T2_TBASE4		(IDENT_ADDR + GAMMA_BIAS + 0x38e000440UL)
+
+#define T2_AIR			(IDENT_ADDR + GAMMA_BIAS + 0x38e000460UL)
+#define T2_VAR			(IDENT_ADDR + GAMMA_BIAS + 0x38e000480UL)
+#define T2_DIR			(IDENT_ADDR + GAMMA_BIAS + 0x38e0004a0UL)
+#define T2_ICE			(IDENT_ADDR + GAMMA_BIAS + 0x38e0004c0UL)
+
+#ifndef T2_ONE_HAE_WINDOW
+#define T2_HAE_ADDRESS		T2_HAE_1
+#endif
+
+/*  T2 CSRs are in the non-cachable primary IO space from 3.8000.0000 to
+ 3.8fff.ffff
+ *
+ *  +--------------+ 3 8000 0000
+ *  | CPU 0 CSRs   |
+ *  +--------------+ 3 8100 0000
+ *  | CPU 1 CSRs   |
+ *  +--------------+ 3 8200 0000
+ *  | CPU 2 CSRs   |
+ *  +--------------+ 3 8300 0000
+ *  | CPU 3 CSRs   |
+ *  +--------------+ 3 8400 0000
+ *  | CPU Reserved |
+ *  +--------------+ 3 8700 0000
+ *  | Mem Reserved |
+ *  +--------------+ 3 8800 0000
+ *  | Mem 0 CSRs   |
+ *  +--------------+ 3 8900 0000
+ *  | Mem 1 CSRs   |
+ *  +--------------+ 3 8a00 0000
+ *  | Mem 2 CSRs   |
+ *  +--------------+ 3 8b00 0000
+ *  | Mem 3 CSRs   |
+ *  +--------------+ 3 8c00 0000
+ *  | Mem Reserved |
+ *  +--------------+ 3 8e00 0000
+ *  | PCI Bridge   |
+ *  +--------------+ 3 8f00 0000
+ *  | Expansion IO |
+ *  +--------------+ 3 9000 0000
+ *
+ *
+ */
+#define T2_CPU0_BASE            (IDENT_ADDR + GAMMA_BIAS + 0x380000000L)
+#define T2_CPU1_BASE            (IDENT_ADDR + GAMMA_BIAS + 0x381000000L)
+#define T2_CPU2_BASE            (IDENT_ADDR + GAMMA_BIAS + 0x382000000L)
+#define T2_CPU3_BASE            (IDENT_ADDR + GAMMA_BIAS + 0x383000000L)
+
+#define T2_CPUn_BASE(n)		(T2_CPU0_BASE + (((n)&3) * 0x001000000L))
+
+#define T2_MEM0_BASE            (IDENT_ADDR + GAMMA_BIAS + 0x388000000L)
+#define T2_MEM1_BASE            (IDENT_ADDR + GAMMA_BIAS + 0x389000000L)
+#define T2_MEM2_BASE            (IDENT_ADDR + GAMMA_BIAS + 0x38a000000L)
+#define T2_MEM3_BASE            (IDENT_ADDR + GAMMA_BIAS + 0x38b000000L)
+
+
+/*
+ * Sable CPU Module CSRS
+ *
+ * These are CSRs for hardware other than the CPU chip on the CPU module.
+ * The CPU module has Backup Cache control logic, Cbus control logic, and
+ * interrupt control logic on it.  There is a duplicate tag store to speed
+ * up maintaining cache coherency.
+ */
+
+struct sable_cpu_csr {
+  unsigned long bcc;     long fill_00[3]; /* Backup Cache Control */
+  unsigned long bcce;    long fill_01[3]; /* Backup Cache Correctable Error */
+  unsigned long bccea;   long fill_02[3]; /* B-Cache Corr Err Address Latch */
+  unsigned long bcue;    long fill_03[3]; /* B-Cache Uncorrectable Error */
+  unsigned long bcuea;   long fill_04[3]; /* B-Cache Uncorr Err Addr Latch */
+  unsigned long dter;    long fill_05[3]; /* Duplicate Tag Error */
+  unsigned long cbctl;   long fill_06[3]; /* CBus Control */
+  unsigned long cbe;     long fill_07[3]; /* CBus Error */
+  unsigned long cbeal;   long fill_08[3]; /* CBus Error Addr Latch low */
+  unsigned long cbeah;   long fill_09[3]; /* CBus Error Addr Latch high */
+  unsigned long pmbx;    long fill_10[3]; /* Processor Mailbox */
+  unsigned long ipir;    long fill_11[3]; /* Inter-Processor Int Request */
+  unsigned long sic;     long fill_12[3]; /* System Interrupt Clear */
+  unsigned long adlk;    long fill_13[3]; /* Address Lock (LDxL/STxC) */
+  unsigned long madrl;   long fill_14[3]; /* CBus Miss Address */
+  unsigned long rev;     long fill_15[3]; /* CMIC Revision */
+};
+
+/*
+ * Data structure for handling T2 machine checks:
+ */
+struct el_t2_frame_header {
+	unsigned int	elcf_fid;	/* Frame ID (from above) */
+	unsigned int	elcf_size;	/* Size of frame in bytes */
+};
+
+struct el_t2_procdata_mcheck {
+	unsigned long	elfmc_paltemp[32];	/* PAL TEMP REGS. */
+	/* EV4-specific fields */
+	unsigned long	elfmc_exc_addr;	/* Addr of excepting insn. */
+	unsigned long	elfmc_exc_sum;	/* Summary of arith traps. */
+	unsigned long	elfmc_exc_mask;	/* Exception mask (from exc_sum). */
+	unsigned long	elfmc_iccsr;	/* IBox hardware enables. */
+	unsigned long	elfmc_pal_base;	/* Base address for PALcode. */
+	unsigned long	elfmc_hier;	/* Hardware Interrupt Enable. */
+	unsigned long	elfmc_hirr;	/* Hardware Interrupt Request. */
+	unsigned long	elfmc_mm_csr;	/* D-stream fault info. */
+	unsigned long	elfmc_dc_stat;	/* D-cache status (ECC/Parity Err). */
+	unsigned long	elfmc_dc_addr;	/* EV3 Phys Addr for ECC/DPERR. */
+	unsigned long	elfmc_abox_ctl;	/* ABox Control Register. */
+	unsigned long	elfmc_biu_stat;	/* BIU Status. */
+	unsigned long	elfmc_biu_addr;	/* BUI Address. */
+	unsigned long	elfmc_biu_ctl;	/* BIU Control. */
+	unsigned long	elfmc_fill_syndrome; /* For correcting ECC errors. */
+	unsigned long	elfmc_fill_addr;/* Cache block which was being read. */
+	unsigned long	elfmc_va;	/* Effective VA of fault or miss. */
+	unsigned long	elfmc_bc_tag;	/* Backup Cache Tag Probe Results. */
+};
+
+/*
+ * Sable processor specific Machine Check Data segment.
+ */
+
+struct el_t2_logout_header {
+	unsigned int	elfl_size;	/* size in bytes of logout area. */
+	unsigned int	elfl_sbz1:31;	/* Should be zero. */
+	unsigned int	elfl_retry:1;	/* Retry flag. */
+	unsigned int	elfl_procoffset; /* Processor-specific offset. */
+	unsigned int	elfl_sysoffset;	 /* Offset of system-specific. */
+	unsigned int	elfl_error_type;	/* PAL error type code. */
+	unsigned int	elfl_frame_rev;		/* PAL Frame revision. */
+};
+struct el_t2_sysdata_mcheck {
+	unsigned long    elcmc_bcc;	      /* CSR 0 */
+	unsigned long    elcmc_bcce;	      /* CSR 1 */
+	unsigned long    elcmc_bccea;      /* CSR 2 */
+	unsigned long    elcmc_bcue;	      /* CSR 3 */
+	unsigned long    elcmc_bcuea;      /* CSR 4 */
+	unsigned long    elcmc_dter;	      /* CSR 5 */
+	unsigned long    elcmc_cbctl;      /* CSR 6 */
+	unsigned long    elcmc_cbe;	      /* CSR 7 */
+	unsigned long    elcmc_cbeal;      /* CSR 8 */
+	unsigned long    elcmc_cbeah;      /* CSR 9 */
+	unsigned long    elcmc_pmbx;	      /* CSR 10 */
+	unsigned long    elcmc_ipir;	      /* CSR 11 */
+	unsigned long    elcmc_sic;	      /* CSR 12 */
+	unsigned long    elcmc_adlk;	      /* CSR 13 */
+	unsigned long    elcmc_madrl;      /* CSR 14 */
+	unsigned long    elcmc_crrev4;     /* CSR 15 */
+};
+
+/*
+ * Sable memory error frame - sable pfms section 3.42
+ */
+struct el_t2_data_memory {
+	struct	el_t2_frame_header elcm_hdr;	/* ID$MEM-FERR = 0x08 */
+	unsigned int  elcm_module;	/* Module id. */
+	unsigned int  elcm_res04;	/* Reserved. */
+	unsigned long elcm_merr;	/* CSR0: Error Reg 1. */
+	unsigned long elcm_mcmd1;	/* CSR1: Command Trap 1. */
+	unsigned long elcm_mcmd2;	/* CSR2: Command Trap 2. */
+	unsigned long elcm_mconf;	/* CSR3: Configuration. */
+	unsigned long elcm_medc1;	/* CSR4: EDC Status 1. */
+	unsigned long elcm_medc2;	/* CSR5: EDC Status 2. */
+	unsigned long elcm_medcc;	/* CSR6: EDC Control. */
+	unsigned long elcm_msctl;	/* CSR7: Stream Buffer Control. */
+	unsigned long elcm_mref;	/* CSR8: Refresh Control. */
+	unsigned long elcm_filter;	/* CSR9: CRD Filter Control. */
+};
+
+
+/*
+ * Sable other CPU error frame - sable pfms section 3.43
+ */
+struct el_t2_data_other_cpu {
+	short	      elco_cpuid;	/* CPU ID */
+	short	      elco_res02[3];
+	unsigned long elco_bcc;	/* CSR 0 */
+	unsigned long elco_bcce;	/* CSR 1 */
+	unsigned long elco_bccea;	/* CSR 2 */
+	unsigned long elco_bcue;	/* CSR 3 */
+	unsigned long elco_bcuea;	/* CSR 4 */
+	unsigned long elco_dter;	/* CSR 5 */
+	unsigned long elco_cbctl;	/* CSR 6 */
+	unsigned long elco_cbe;	/* CSR 7 */
+	unsigned long elco_cbeal;	/* CSR 8 */
+	unsigned long elco_cbeah;	/* CSR 9 */
+	unsigned long elco_pmbx;	/* CSR 10 */
+	unsigned long elco_ipir;	/* CSR 11 */
+	unsigned long elco_sic;	/* CSR 12 */
+	unsigned long elco_adlk;	/* CSR 13 */
+	unsigned long elco_madrl;	/* CSR 14 */
+	unsigned long elco_crrev4;	/* CSR 15 */
+};
+
+/*
+ * Sable other CPU error frame - sable pfms section 3.44
+ */
+struct el_t2_data_t2{
+	struct el_t2_frame_header elct_hdr;	/* ID$T2-FRAME */
+	unsigned long elct_iocsr;	/* IO Control and Status Register */
+	unsigned long elct_cerr1;	/* Cbus Error Register 1 */
+	unsigned long elct_cerr2;	/* Cbus Error Register 2 */
+	unsigned long elct_cerr3;	/* Cbus Error Register 3 */
+	unsigned long elct_perr1;	/* PCI Error Register 1 */
+	unsigned long elct_perr2;	/* PCI Error Register 2 */
+	unsigned long elct_hae0_1;	/* High Address Extension Register 1 */
+	unsigned long elct_hae0_2;	/* High Address Extension Register 2 */
+	unsigned long elct_hbase;	/* High Base Register */
+	unsigned long elct_wbase1;	/* Window Base Register 1 */
+	unsigned long elct_wmask1;	/* Window Mask Register 1 */
+	unsigned long elct_tbase1;	/* Translated Base Register 1 */
+	unsigned long elct_wbase2;	/* Window Base Register 2 */
+	unsigned long elct_wmask2;	/* Window Mask Register 2 */
+	unsigned long elct_tbase2;	/* Translated Base Register 2 */
+	unsigned long elct_tdr0;	/* TLB Data Register 0 */
+	unsigned long elct_tdr1;	/* TLB Data Register 1 */
+	unsigned long elct_tdr2;	/* TLB Data Register 2 */
+	unsigned long elct_tdr3;	/* TLB Data Register 3 */
+	unsigned long elct_tdr4;	/* TLB Data Register 4 */
+	unsigned long elct_tdr5;	/* TLB Data Register 5 */
+	unsigned long elct_tdr6;	/* TLB Data Register 6 */
+	unsigned long elct_tdr7;	/* TLB Data Register 7 */
+};
+
+/*
+ * Sable error log data structure - sable pfms section 3.40
+ */
+struct el_t2_data_corrected {
+	unsigned long elcpb_biu_stat;
+	unsigned long elcpb_biu_addr;
+	unsigned long elcpb_biu_ctl;
+	unsigned long elcpb_fill_syndrome;
+	unsigned long elcpb_fill_addr;
+	unsigned long elcpb_bc_tag;
+};
+
+/*
+ * Sable error log data structure
+ * Note there are 4 memory slots on sable (see t2.h)
+ */
+struct el_t2_frame_mcheck {
+	struct el_t2_frame_header elfmc_header;	/* ID$P-FRAME_MCHECK */
+	struct el_t2_logout_header elfmc_hdr;
+	struct el_t2_procdata_mcheck elfmc_procdata;
+	struct el_t2_sysdata_mcheck elfmc_sysdata;
+	struct el_t2_data_t2 elfmc_t2data;
+	struct el_t2_data_memory elfmc_memdata[4];
+	struct el_t2_frame_header elfmc_footer;	/* empty */
+};
+
+
+/*
+ * Sable error log data structures on memory errors
+ */
+struct el_t2_frame_corrected {
+	struct el_t2_frame_header elfcc_header;	/* ID$P-BC-COR */
+	struct el_t2_logout_header elfcc_hdr;
+	struct el_t2_data_corrected elfcc_procdata;
+/*	struct el_t2_data_t2 elfcc_t2data;		*/
+/*	struct el_t2_data_memory elfcc_memdata[4];	*/
+	struct el_t2_frame_header elfcc_footer;	/* empty */
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * T2 (the core logic PCI/memory support chipset for the SABLE
+ * series of processors uses a sparse address mapping scheme to
+ * get at PCI memory and I/O.
+ */
+
+#define vip	volatile int *
+#define vuip	volatile unsigned int *
+
+extern inline u8 t2_inb(unsigned long addr)
+{
+	long result = *(vip) ((addr << 5) + T2_IO + 0x00);
+	return __kernel_extbl(result, addr & 3);
+}
+
+extern inline void t2_outb(u8 b, unsigned long addr)
+{
+	unsigned long w;
+
+	w = __kernel_insbl(b, addr & 3);
+	*(vuip) ((addr << 5) + T2_IO + 0x00) = w;
+	mb();
+}
+
+extern inline u16 t2_inw(unsigned long addr)
+{
+	long result = *(vip) ((addr << 5) + T2_IO + 0x08);
+	return __kernel_extwl(result, addr & 3);
+}
+
+extern inline void t2_outw(u16 b, unsigned long addr)
+{
+	unsigned long w;
+
+	w = __kernel_inswl(b, addr & 3);
+	*(vuip) ((addr << 5) + T2_IO + 0x08) = w;
+	mb();
+}
+
+extern inline u32 t2_inl(unsigned long addr)
+{
+	return *(vuip) ((addr << 5) + T2_IO + 0x18);
+}
+
+extern inline void t2_outl(u32 b, unsigned long addr)
+{
+	*(vuip) ((addr << 5) + T2_IO + 0x18) = b;
+	mb();
+}
+
+
+/*
+ * Memory functions.
+ *
+ * For reading and writing 8 and 16 bit quantities we need to
+ * go through one of the three sparse address mapping regions
+ * and use the HAE_MEM CSR to provide some bits of the address.
+ * The following few routines use only sparse address region 1
+ * which gives 1Gbyte of accessible space which relates exactly
+ * to the amount of PCI memory mapping *into* system address space.
+ * See p 6-17 of the specification but it looks something like this:
+ *
+ * 21164 Address:
+ *
+ *          3         2         1
+ * 9876543210987654321098765432109876543210
+ * 1ZZZZ0.PCI.QW.Address............BBLL
+ *
+ * ZZ = SBZ
+ * BB = Byte offset
+ * LL = Transfer length
+ *
+ * PCI Address:
+ *
+ * 3         2         1
+ * 10987654321098765432109876543210
+ * HHH....PCI.QW.Address........ 00
+ *
+ * HHH = 31:29 HAE_MEM CSR
+ *
+ */
+
+#ifdef T2_ONE_HAE_WINDOW
+#define t2_set_hae
+#else
+#define t2_set_hae { \
+	unsigned long msb = addr >> 27; \
+	addr &= T2_MEM_R1_MASK; \
+	set_hae(msb); \
+}
+#endif
+
+/*
+ * NOTE: take T2_DENSE_MEM off in each readX/writeX routine, since
+ *       they may be called directly, rather than through the
+ *       ioreadNN/iowriteNN routines.
+ */
+
+__EXTERN_INLINE u8 t2_readb(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+	unsigned long result;
+
+	t2_set_hae;
+
+	result = *(vip) ((addr << 5) + T2_SPARSE_MEM + 0x00);
+	return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE u16 t2_readw(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+	unsigned long result;
+
+	t2_set_hae;
+
+	result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08);
+	return __kernel_extwl(result, addr & 3);
+}
+
+/*
+ * On SABLE with T2, we must use SPARSE memory even for 32-bit access,
+ * because we cannot access all of DENSE without changing its HAE.
+ */
+__EXTERN_INLINE u32 t2_readl(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+	unsigned long result;
+
+	t2_set_hae;
+
+	result = *(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18);
+	return result & 0xffffffffUL;
+}
+
+__EXTERN_INLINE u64 t2_readq(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+	unsigned long r0, r1, work;
+
+	t2_set_hae;
+
+	work = (addr << 5) + T2_SPARSE_MEM + 0x18;
+	r0 = *(vuip)(work);
+	r1 = *(vuip)(work + (4 << 5));
+	return r1 << 32 | r0;
+}
+
+__EXTERN_INLINE void t2_writeb(u8 b, volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+	unsigned long w;
+
+	t2_set_hae;
+
+	w = __kernel_insbl(b, addr & 3);
+	*(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x00) = w;
+}
+
+__EXTERN_INLINE void t2_writew(u16 b, volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+	unsigned long w;
+
+	t2_set_hae;
+
+	w = __kernel_inswl(b, addr & 3);
+	*(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x08) = w;
+}
+
+/*
+ * On SABLE with T2, we must use SPARSE memory even for 32-bit access,
+ * because we cannot access all of DENSE without changing its HAE.
+ */
+__EXTERN_INLINE void t2_writel(u32 b, volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+
+	t2_set_hae;
+
+	*(vuip) ((addr << 5) + T2_SPARSE_MEM + 0x18) = b;
+}
+
+__EXTERN_INLINE void t2_writeq(u64 b, volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr - T2_DENSE_MEM;
+	unsigned long work;
+
+	t2_set_hae;
+
+	work = (addr << 5) + T2_SPARSE_MEM + 0x18;
+	*(vuip)work = b;
+	*(vuip)(work + (4 << 5)) = b >> 32;
+}
+
+__EXTERN_INLINE void __iomem *t2_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + T2_IO);
+}
+
+__EXTERN_INLINE void __iomem *t2_ioremap(unsigned long addr, 
+					 unsigned long size)
+{
+	return (void __iomem *)(addr + T2_DENSE_MEM);
+}
+
+__EXTERN_INLINE int t2_is_ioaddr(unsigned long addr)
+{
+	return (long)addr >= 0;
+}
+
+__EXTERN_INLINE int t2_is_mmio(const volatile void __iomem *addr)
+{
+	return (unsigned long)addr >= T2_DENSE_MEM;
+}
+
+/* New-style ioread interface.  The mmio routines are so ugly for T2 that
+   it doesn't make sense to merge the pio and mmio routines.  */
+
+#define IOPORT(OS, NS)							\
+__EXTERN_INLINE unsigned int t2_ioread##NS(const void __iomem *xaddr)		\
+{									\
+	if (t2_is_mmio(xaddr))						\
+		return t2_read##OS(xaddr);				\
+	else								\
+		return t2_in##OS((unsigned long)xaddr - T2_IO);		\
+}									\
+__EXTERN_INLINE void t2_iowrite##NS(u##NS b, void __iomem *xaddr)	\
+{									\
+	if (t2_is_mmio(xaddr))						\
+		t2_write##OS(b, xaddr);					\
+	else								\
+		t2_out##OS(b, (unsigned long)xaddr - T2_IO);		\
+}
+
+IOPORT(b, 8)
+IOPORT(w, 16)
+IOPORT(l, 32)
+
+#undef IOPORT
+
+#undef vip
+#undef vuip
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		t2
+#define t2_trivial_rw_bw	0
+#define t2_trivial_rw_lq	0
+#define t2_trivial_io_bw	0
+#define t2_trivial_io_lq	0
+#define t2_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_T2__H__ */

arch/alpha/include/asm/core_titan.h

@@ -0,0 +1,410 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_TITAN__H__
+#define __ALPHA_TITAN__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * TITAN is the internal names for a core logic chipset which provides
+ * memory controller and PCI/AGP access for 21264 based systems.
+ *
+ * This file is based on:
+ *
+ * Titan Chipset Engineering Specification
+ * Revision 0.12
+ * 13 July 1999
+ *
+ */
+
+/* XXX: Do we need to conditionalize on this?  */
+#ifdef USE_48_BIT_KSEG
+#define TI_BIAS 0x80000000000UL
+#else
+#define TI_BIAS 0x10000000000UL
+#endif
+
+/*
+ * CChip, DChip, and PChip registers
+ */
+
+typedef struct {
+	volatile unsigned long csr __attribute__((aligned(64)));
+} titan_64;
+
+typedef struct {
+	titan_64	csc;
+	titan_64	mtr;
+	titan_64	misc;
+	titan_64	mpd;
+	titan_64	aar0;
+	titan_64	aar1;
+	titan_64	aar2;
+	titan_64	aar3;
+	titan_64	dim0;
+	titan_64	dim1;
+	titan_64	dir0;
+	titan_64	dir1;
+	titan_64	drir;
+	titan_64	prben;
+	titan_64	iic0;
+	titan_64	iic1;
+	titan_64	mpr0;
+	titan_64	mpr1;
+	titan_64	mpr2;
+	titan_64	mpr3;
+	titan_64	rsvd[2];
+	titan_64	ttr;
+	titan_64	tdr;
+	titan_64	dim2;
+	titan_64	dim3;
+	titan_64	dir2;
+	titan_64	dir3;
+	titan_64	iic2;
+	titan_64	iic3;
+	titan_64	pwr;
+	titan_64	reserved[17];
+	titan_64	cmonctla;
+	titan_64	cmonctlb;
+	titan_64	cmoncnt01;
+	titan_64	cmoncnt23;
+	titan_64	cpen;
+} titan_cchip;
+
+typedef struct {
+	titan_64	dsc;
+	titan_64	str;
+	titan_64	drev;
+	titan_64	dsc2;
+} titan_dchip;
+
+typedef struct {
+	titan_64	wsba[4];
+	titan_64	wsm[4];
+	titan_64	tba[4];
+	titan_64	pctl;
+	titan_64	plat;
+	titan_64	reserved0[2];
+	union {
+		struct {
+			titan_64	serror;
+			titan_64	serren;
+			titan_64	serrset;
+			titan_64	reserved0;
+			titan_64	gperror;
+			titan_64	gperren;
+			titan_64	gperrset;
+			titan_64	reserved1;
+			titan_64	gtlbiv;
+			titan_64	gtlbia;
+			titan_64	reserved2[2];
+			titan_64	sctl;
+			titan_64	reserved3[3];
+		} g;
+		struct {
+			titan_64	agperror;
+			titan_64	agperren;
+			titan_64	agperrset;
+			titan_64	agplastwr;
+			titan_64	aperror;
+			titan_64	aperren;
+			titan_64	aperrset;
+			titan_64	reserved0;
+			titan_64	atlbiv;
+			titan_64	atlbia;
+			titan_64	reserved1[6];
+		} a;
+	} port_specific;
+	titan_64	sprst;
+	titan_64	reserved1[31];
+} titan_pachip_port;
+
+typedef struct {
+	titan_pachip_port	g_port;
+	titan_pachip_port	a_port;
+} titan_pachip;
+
+#define TITAN_cchip	((titan_cchip  *)(IDENT_ADDR+TI_BIAS+0x1A0000000UL))
+#define TITAN_dchip    	((titan_dchip  *)(IDENT_ADDR+TI_BIAS+0x1B0000800UL))
+#define TITAN_pachip0 	((titan_pachip *)(IDENT_ADDR+TI_BIAS+0x180000000UL))
+#define TITAN_pachip1 	((titan_pachip *)(IDENT_ADDR+TI_BIAS+0x380000000UL))
+extern unsigned TITAN_agp;
+extern int TITAN_bootcpu;
+
+/*
+ * TITAN PA-chip Window Space Base Address register.
+ * (WSBA[0-2])
+ */
+#define wsba_m_ena 0x1                
+#define wsba_m_sg 0x2
+#define wsba_m_addr 0xFFF00000  
+#define wmask_k_sz1gb 0x3FF00000                   
+union TPAchipWSBA {
+	struct  {
+		unsigned wsba_v_ena : 1;
+		unsigned wsba_v_sg : 1;
+		unsigned wsba_v_rsvd1 : 18;
+		unsigned wsba_v_addr : 12;
+		unsigned wsba_v_rsvd2 : 32;
+        } wsba_r_bits;
+	int wsba_q_whole [2];
+};
+
+/*
+ * TITAN PA-chip Control Register
+ * This definition covers both the G-Port GPCTL and the A-PORT APCTL.
+ * Bits <51:0> are the same in both cases. APCTL<63:52> are only 
+ * applicable to AGP.
+ */
+#define pctl_m_fbtb 			0x00000001
+#define pctl_m_thdis 			0x00000002
+#define pctl_m_chaindis 		0x00000004
+#define pctl_m_tgtlat 			0x00000018
+#define pctl_m_hole  	  		0x00000020
+#define pctl_m_mwin 	  		0x00000040
+#define pctl_m_arbena 	  		0x00000080
+#define pctl_m_prigrp 	  		0x0000FF00
+#define pctl_m_ppri 	  		0x00010000
+#define pctl_m_pcispd66  		0x00020000
+#define pctl_m_cngstlt	  		0x003C0000
+#define pctl_m_ptpdesten 		0x3FC00000
+#define pctl_m_dpcen			0x40000000
+#define pctl_m_apcen		0x0000000080000000UL
+#define pctl_m_dcrtv		0x0000000300000000UL
+#define pctl_m_en_stepping	0x0000000400000000UL
+#define apctl_m_rsvd1		0x000FFFF800000000UL
+#define apctl_m_agp_rate	0x0030000000000000UL
+#define apctl_m_agp_sba_en	0x0040000000000000UL
+#define apctl_m_agp_en		0x0080000000000000UL
+#define apctl_m_rsvd2		0x0100000000000000UL
+#define apctl_m_agp_present	0x0200000000000000UL
+#define apctl_agp_hp_rd		0x1C00000000000000UL
+#define apctl_agp_lp_rd		0xE000000000000000UL
+#define gpctl_m_rsvd		0xFFFFFFF800000000UL
+union TPAchipPCTL {
+	struct {
+		unsigned pctl_v_fbtb : 1;		/* A/G [0]     */
+		unsigned pctl_v_thdis : 1;		/* A/G [1]     */
+		unsigned pctl_v_chaindis : 1;		/* A/G [2]     */
+		unsigned pctl_v_tgtlat : 2;		/* A/G [4:3]   */
+		unsigned pctl_v_hole : 1;		/* A/G [5]     */
+		unsigned pctl_v_mwin : 1;		/* A/G [6]     */
+		unsigned pctl_v_arbena : 1;		/* A/G [7]     */
+		unsigned pctl_v_prigrp : 8;		/* A/G [15:8]  */
+		unsigned pctl_v_ppri : 1;		/* A/G [16]    */
+		unsigned pctl_v_pcispd66 : 1;		/* A/G [17]    */
+		unsigned pctl_v_cngstlt : 4;		/* A/G [21:18] */
+		unsigned pctl_v_ptpdesten : 8;		/* A/G [29:22] */
+		unsigned pctl_v_dpcen : 1;		/* A/G [30]    */
+		unsigned pctl_v_apcen : 1;		/* A/G [31]    */
+		unsigned pctl_v_dcrtv : 2;		/* A/G [33:32] */
+		unsigned pctl_v_en_stepping :1;		/* A/G [34]    */
+		unsigned apctl_v_rsvd1 : 17;		/* A   [51:35] */
+		unsigned apctl_v_agp_rate : 2;		/* A   [53:52] */
+		unsigned apctl_v_agp_sba_en : 1;	/* A   [54]    */
+		unsigned apctl_v_agp_en : 1;		/* A   [55]    */
+		unsigned apctl_v_rsvd2 : 1;		/* A   [56]    */
+		unsigned apctl_v_agp_present : 1;	/* A   [57]    */
+		unsigned apctl_v_agp_hp_rd : 3;		/* A   [60:58] */
+		unsigned apctl_v_agp_lp_rd : 3;		/* A   [63:61] */
+	} pctl_r_bits;
+	unsigned int pctl_l_whole [2];
+	unsigned long pctl_q_whole;
+};
+
+/*
+ * SERROR / SERREN / SERRSET
+ */
+union TPAchipSERR {
+	struct {
+		unsigned serr_v_lost_uecc : 1;		/* [0]		*/
+		unsigned serr_v_uecc : 1;		/* [1]  	*/
+		unsigned serr_v_cre : 1;		/* [2]		*/
+		unsigned serr_v_nxio : 1;		/* [3]		*/
+		unsigned serr_v_lost_cre : 1;		/* [4]		*/
+		unsigned serr_v_rsvd0 : 10;		/* [14:5]	*/
+		unsigned serr_v_addr : 32;		/* [46:15]	*/
+		unsigned serr_v_rsvd1 : 5;		/* [51:47]	*/
+		unsigned serr_v_source : 2;		/* [53:52]	*/
+		unsigned serr_v_cmd : 2;		/* [55:54]	*/
+		unsigned serr_v_syn : 8;		/* [63:56]	*/
+	} serr_r_bits;
+	unsigned int serr_l_whole[2];
+	unsigned long serr_q_whole;
+};
+
+/*
+ * GPERROR / APERROR / GPERREN / APERREN / GPERRSET / APERRSET
+ */
+union TPAchipPERR {
+	struct {
+		unsigned long perr_v_lost : 1;	     	/* [0]		*/
+		unsigned long perr_v_serr : 1;		/* [1]		*/
+		unsigned long perr_v_perr : 1;		/* [2]		*/
+		unsigned long perr_v_dcrto : 1;		/* [3]		*/
+		unsigned long perr_v_sge : 1;		/* [4]		*/
+		unsigned long perr_v_ape : 1;		/* [5]		*/
+		unsigned long perr_v_ta : 1;		/* [6]		*/
+		unsigned long perr_v_dpe : 1;		/* [7]		*/
+		unsigned long perr_v_nds : 1;		/* [8]		*/
+		unsigned long perr_v_iptpr : 1;		/* [9]		*/
+		unsigned long perr_v_iptpw : 1;		/* [10] 	*/
+		unsigned long perr_v_rsvd0 : 3;		/* [13:11]	*/
+		unsigned long perr_v_addr : 33;		/* [46:14]	*/
+		unsigned long perr_v_dac : 1;		/* [47]		*/
+		unsigned long perr_v_mwin : 1;		/* [48]		*/
+		unsigned long perr_v_rsvd1 : 3;		/* [51:49]	*/
+		unsigned long perr_v_cmd : 4;		/* [55:52]	*/
+		unsigned long perr_v_rsvd2 : 8;		/* [63:56]	*/
+	} perr_r_bits;
+	unsigned int perr_l_whole[2];
+	unsigned long perr_q_whole;
+};
+
+/*
+ * AGPERROR / AGPERREN / AGPERRSET
+ */
+union TPAchipAGPERR {
+	struct {
+		unsigned agperr_v_lost : 1;		/* [0]		*/
+		unsigned agperr_v_lpqfull : 1;		/* [1]		*/
+		unsigned apgerr_v_hpqfull : 1;		/* [2]		*/
+		unsigned agperr_v_rescmd : 1;		/* [3]		*/
+		unsigned agperr_v_ipte : 1;		/* [4]		*/
+		unsigned agperr_v_ptp :	1;      	/* [5]		*/
+		unsigned agperr_v_nowindow : 1;		/* [6]		*/
+		unsigned agperr_v_rsvd0 : 8;		/* [14:7]	*/
+		unsigned agperr_v_addr : 32;		/* [46:15]	*/
+		unsigned agperr_v_rsvd1 : 1;		/* [47]		*/
+		unsigned agperr_v_dac : 1;		/* [48]		*/
+		unsigned agperr_v_mwin : 1;		/* [49]		*/
+		unsigned agperr_v_cmd : 3;		/* [52:50]	*/
+		unsigned agperr_v_length : 6;		/* [58:53]	*/
+		unsigned agperr_v_fence : 1;		/* [59]		*/
+		unsigned agperr_v_rsvd2 : 4;		/* [63:60]	*/
+	} agperr_r_bits;
+	unsigned int agperr_l_whole[2];
+	unsigned long agperr_q_whole;
+};
+/*
+ * Memory spaces:
+ * Hose numbers are assigned as follows:
+ *		0 - pachip 0 / G Port
+ *		1 - pachip 1 / G Port
+ * 		2 - pachip 0 / A Port
+ *      	3 - pachip 1 / A Port
+ */
+#define TITAN_HOSE_SHIFT       (33) 
+#define TITAN_HOSE(h)		(((unsigned long)(h)) << TITAN_HOSE_SHIFT)
+#define TITAN_BASE		(IDENT_ADDR + TI_BIAS)
+#define TITAN_MEM(h)	     	(TITAN_BASE+TITAN_HOSE(h)+0x000000000UL)
+#define _TITAN_IACK_SC(h)    	(TITAN_BASE+TITAN_HOSE(h)+0x1F8000000UL)
+#define TITAN_IO(h)	     	(TITAN_BASE+TITAN_HOSE(h)+0x1FC000000UL)
+#define TITAN_CONF(h)	     	(TITAN_BASE+TITAN_HOSE(h)+0x1FE000000UL)
+
+#define TITAN_HOSE_MASK		TITAN_HOSE(3)
+#define TITAN_IACK_SC	     	_TITAN_IACK_SC(0) /* hack! */
+
+/* 
+ * The canonical non-remaped I/O and MEM addresses have these values
+ * subtracted out.  This is arranged so that folks manipulating ISA
+ * devices can use their familiar numbers and have them map to bus 0.
+ */
+
+#define TITAN_IO_BIAS		TITAN_IO(0)
+#define TITAN_MEM_BIAS		TITAN_MEM(0)
+
+/* The IO address space is larger than 0xffff */
+#define TITAN_IO_SPACE		(TITAN_CONF(0) - TITAN_IO(0))
+
+/* TIG Space */
+#define TITAN_TIG_SPACE		(TITAN_BASE + 0x100000000UL)
+
+/* Offset between ram physical addresses and pci64 DAC bus addresses.  */
+/* ??? Just a guess.  Ought to confirm it hasn't been moved.  */
+#define TITAN_DAC_OFFSET	(1UL << 40)
+
+/*
+ * Data structure for handling TITAN machine checks:
+ */
+#define SCB_Q_SYSERR	0x620
+#define SCB_Q_PROCERR	0x630
+#define SCB_Q_SYSMCHK	0x660
+#define SCB_Q_PROCMCHK	0x670
+#define SCB_Q_SYSEVENT	0x680	/* environmental / system management */
+struct el_TITAN_sysdata_mcheck {
+	u64 summary;	/* 0x00 */
+	u64 c_dirx;	/* 0x08 */
+	u64 c_misc;	/* 0x10 */
+	u64 p0_serror;	/* 0x18 */
+	u64 p0_gperror; /* 0x20 */
+	u64 p0_aperror; /* 0x28 */
+	u64 p0_agperror;/* 0x30 */
+	u64 p1_serror;	/* 0x38 */
+	u64 p1_gperror; /* 0x40 */
+	u64 p1_aperror; /* 0x48 */
+	u64 p1_agperror;/* 0x50 */
+};
+
+/*
+ * System area for a privateer 680 environmental/system management mcheck 
+ */
+struct el_PRIVATEER_envdata_mcheck {
+	u64 summary;	/* 0x00 */
+	u64 c_dirx;	/* 0x08 */
+	u64 smir;	/* 0x10 */
+	u64 cpuir;	/* 0x18 */
+	u64 psir;	/* 0x20 */
+	u64 fault;	/* 0x28 */
+	u64 sys_doors;	/* 0x30 */
+	u64 temp_warn;	/* 0x38 */
+	u64 fan_ctrl;	/* 0x40 */
+	u64 code;	/* 0x48 */
+	u64 reserved;	/* 0x50 */
+};
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * TITAN, a 21??? PCI/memory support chipset for the EV6 (21264)
+ * can only use linear accesses to get at PCI/AGP memory and I/O spaces.
+ */
+
+/*
+ * Memory functions.  all accesses are done through linear space.
+ */
+extern void __iomem *titan_ioportmap(unsigned long addr);
+extern void __iomem *titan_ioremap(unsigned long addr, unsigned long size);
+extern void titan_iounmap(volatile void __iomem *addr);
+
+__EXTERN_INLINE int titan_is_ioaddr(unsigned long addr)
+{
+	return addr >= TITAN_BASE;
+}
+
+extern int titan_is_mmio(const volatile void __iomem *addr);
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		titan
+#define titan_trivial_rw_bw	1
+#define titan_trivial_rw_lq	1
+#define titan_trivial_io_bw	1
+#define titan_trivial_io_lq	1
+#define titan_trivial_iounmap	0
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_TITAN__H__ */

arch/alpha/include/asm/core_tsunami.h

@@ -0,0 +1,335 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_TSUNAMI__H__
+#define __ALPHA_TSUNAMI__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+/*
+ * TSUNAMI/TYPHOON are the internal names for the core logic chipset which
+ * provides memory controller and PCI access for the 21264 based systems.
+ *
+ * This file is based on:
+ *
+ * Tsunami System Programmers Manual
+ * Preliminary, Chapters 2-5
+ *
+ */
+
+/* XXX: Do we need to conditionalize on this?  */
+#ifdef USE_48_BIT_KSEG
+#define TS_BIAS 0x80000000000UL
+#else
+#define TS_BIAS 0x10000000000UL
+#endif
+
+/*
+ * CChip, DChip, and PChip registers
+ */
+
+typedef struct {
+	volatile unsigned long csr __attribute__((aligned(64)));
+} tsunami_64;
+
+typedef struct {
+	tsunami_64	csc;
+	tsunami_64	mtr;
+	tsunami_64	misc;
+	tsunami_64	mpd;
+	tsunami_64	aar0;
+	tsunami_64	aar1;
+	tsunami_64	aar2;
+	tsunami_64	aar3;
+	tsunami_64	dim0;
+	tsunami_64	dim1;
+	tsunami_64	dir0;
+	tsunami_64	dir1;
+	tsunami_64	drir;
+	tsunami_64	prben;
+	tsunami_64	iic;	/* a.k.a. iic0 */
+	tsunami_64	wdr;	/* a.k.a. iic1 */
+	tsunami_64	mpr0;
+	tsunami_64	mpr1;
+	tsunami_64	mpr2;
+	tsunami_64	mpr3;
+	tsunami_64	mctl;
+	tsunami_64	__pad1;
+	tsunami_64	ttr;
+	tsunami_64	tdr;
+	tsunami_64	dim2;
+	tsunami_64	dim3;
+	tsunami_64	dir2;
+	tsunami_64	dir3;
+	tsunami_64	iic2;
+	tsunami_64	iic3;
+} tsunami_cchip;
+
+typedef struct {
+	tsunami_64	dsc;
+	tsunami_64	str;
+	tsunami_64	drev;
+} tsunami_dchip;
+
+typedef struct {
+	tsunami_64	wsba[4];
+	tsunami_64	wsm[4];
+	tsunami_64	tba[4];
+	tsunami_64	pctl;
+	tsunami_64	plat;
+	tsunami_64	reserved;
+	tsunami_64	perror;
+	tsunami_64	perrmask;
+	tsunami_64	perrset;
+	tsunami_64	tlbiv;
+	tsunami_64	tlbia;
+	tsunami_64	pmonctl;
+	tsunami_64	pmoncnt;
+} tsunami_pchip;
+
+#define TSUNAMI_cchip  ((tsunami_cchip *)(IDENT_ADDR+TS_BIAS+0x1A0000000UL))
+#define TSUNAMI_dchip  ((tsunami_dchip *)(IDENT_ADDR+TS_BIAS+0x1B0000800UL))
+#define TSUNAMI_pchip0 ((tsunami_pchip *)(IDENT_ADDR+TS_BIAS+0x180000000UL))
+#define TSUNAMI_pchip1 ((tsunami_pchip *)(IDENT_ADDR+TS_BIAS+0x380000000UL))
+extern int TSUNAMI_bootcpu;
+
+/*
+ * TSUNAMI Pchip Error register.
+ */
+
+#define perror_m_lost 0x1
+#define perror_m_serr 0x2
+#define perror_m_perr 0x4
+#define perror_m_dcrto 0x8
+#define perror_m_sge 0x10
+#define perror_m_ape 0x20
+#define perror_m_ta 0x40
+#define perror_m_rdpe 0x80
+#define perror_m_nds 0x100
+#define perror_m_rto 0x200
+#define perror_m_uecc 0x400
+#define perror_m_cre 0x800
+#define perror_m_addrl 0xFFFFFFFF0000UL
+#define perror_m_addrh 0x7000000000000UL
+#define perror_m_cmd 0xF0000000000000UL
+#define perror_m_syn 0xFF00000000000000UL
+union TPchipPERROR {   
+	struct  {
+		unsigned int perror_v_lost : 1;
+		unsigned perror_v_serr : 1;
+		unsigned perror_v_perr : 1;
+		unsigned perror_v_dcrto : 1;
+		unsigned perror_v_sge : 1;
+		unsigned perror_v_ape : 1;
+		unsigned perror_v_ta : 1;
+		unsigned perror_v_rdpe : 1;
+		unsigned perror_v_nds : 1;
+		unsigned perror_v_rto : 1;
+		unsigned perror_v_uecc : 1;
+		unsigned perror_v_cre : 1;                 
+		unsigned perror_v_rsvd1 : 4;
+		unsigned perror_v_addrl : 32;
+		unsigned perror_v_addrh : 3;
+		unsigned perror_v_rsvd2 : 1;
+		unsigned perror_v_cmd : 4;
+		unsigned perror_v_syn : 8;
+	} perror_r_bits;
+	int perror_q_whole [2];
+};                       
+
+/*
+ * TSUNAMI Pchip Window Space Base Address register.
+ */
+#define wsba_m_ena 0x1                
+#define wsba_m_sg 0x2
+#define wsba_m_ptp 0x4
+#define wsba_m_addr 0xFFF00000  
+#define wmask_k_sz1gb 0x3FF00000                   
+union TPchipWSBA {
+	struct  {
+		unsigned wsba_v_ena : 1;
+		unsigned wsba_v_sg : 1;
+		unsigned wsba_v_ptp : 1;
+		unsigned wsba_v_rsvd1 : 17;
+		unsigned wsba_v_addr : 12;
+		unsigned wsba_v_rsvd2 : 32;
+	} wsba_r_bits;
+	int wsba_q_whole [2];
+};
+
+/*
+ * TSUNAMI Pchip Control Register
+ */
+#define pctl_m_fdsc 0x1
+#define pctl_m_fbtb 0x2
+#define pctl_m_thdis 0x4
+#define pctl_m_chaindis 0x8
+#define pctl_m_tgtlat 0x10
+#define pctl_m_hole 0x20
+#define pctl_m_mwin 0x40
+#define pctl_m_arbena 0x80
+#define pctl_m_prigrp 0x7F00
+#define pctl_m_ppri 0x8000
+#define pctl_m_rsvd1 0x30000
+#define pctl_m_eccen 0x40000
+#define pctl_m_padm 0x80000
+#define pctl_m_cdqmax 0xF00000
+#define pctl_m_rev 0xFF000000
+#define pctl_m_crqmax 0xF00000000UL
+#define pctl_m_ptpmax 0xF000000000UL
+#define pctl_m_pclkx 0x30000000000UL
+#define pctl_m_fdsdis 0x40000000000UL
+#define pctl_m_fdwdis 0x80000000000UL
+#define pctl_m_ptevrfy 0x100000000000UL
+#define pctl_m_rpp 0x200000000000UL
+#define pctl_m_pid 0xC00000000000UL
+#define pctl_m_rsvd2 0xFFFF000000000000UL
+
+union TPchipPCTL {
+	struct {
+		unsigned pctl_v_fdsc : 1;
+		unsigned pctl_v_fbtb : 1;
+		unsigned pctl_v_thdis : 1;
+		unsigned pctl_v_chaindis : 1;
+		unsigned pctl_v_tgtlat : 1;
+		unsigned pctl_v_hole : 1;
+		unsigned pctl_v_mwin : 1;
+		unsigned pctl_v_arbena : 1;
+		unsigned pctl_v_prigrp : 7;
+		unsigned pctl_v_ppri : 1;
+		unsigned pctl_v_rsvd1 : 2;
+		unsigned pctl_v_eccen : 1;
+		unsigned pctl_v_padm : 1;
+		unsigned pctl_v_cdqmax : 4;
+		unsigned pctl_v_rev : 8;
+		unsigned pctl_v_crqmax : 4;
+		unsigned pctl_v_ptpmax : 4;
+		unsigned pctl_v_pclkx : 2;
+		unsigned pctl_v_fdsdis : 1;
+		unsigned pctl_v_fdwdis : 1;
+		unsigned pctl_v_ptevrfy : 1;
+		unsigned pctl_v_rpp : 1;
+		unsigned pctl_v_pid : 2;
+		unsigned pctl_v_rsvd2 : 16;
+	} pctl_r_bits;
+	int pctl_q_whole [2];
+};
+
+/*
+ * TSUNAMI Pchip Error Mask Register.
+ */
+#define perrmask_m_lost 0x1
+#define perrmask_m_serr 0x2
+#define perrmask_m_perr 0x4
+#define perrmask_m_dcrto 0x8
+#define perrmask_m_sge 0x10
+#define perrmask_m_ape 0x20
+#define perrmask_m_ta 0x40
+#define perrmask_m_rdpe 0x80
+#define perrmask_m_nds 0x100
+#define perrmask_m_rto 0x200
+#define perrmask_m_uecc 0x400
+#define perrmask_m_cre 0x800
+#define perrmask_m_rsvd 0xFFFFFFFFFFFFF000UL
+union TPchipPERRMASK {   
+	struct  {
+		unsigned int perrmask_v_lost : 1;
+		unsigned perrmask_v_serr : 1;
+		unsigned perrmask_v_perr : 1;
+		unsigned perrmask_v_dcrto : 1;
+		unsigned perrmask_v_sge : 1;
+		unsigned perrmask_v_ape : 1;
+		unsigned perrmask_v_ta : 1;
+		unsigned perrmask_v_rdpe : 1;
+		unsigned perrmask_v_nds : 1;
+		unsigned perrmask_v_rto : 1;
+		unsigned perrmask_v_uecc : 1;
+		unsigned perrmask_v_cre : 1;                 
+		unsigned perrmask_v_rsvd1 : 20;
+		unsigned perrmask_v_rsvd2 : 32;
+	} perrmask_r_bits;
+	int perrmask_q_whole [2];
+};                       
+
+/*
+ * Memory spaces:
+ */
+#define TSUNAMI_HOSE(h)		(((unsigned long)(h)) << 33)
+#define TSUNAMI_BASE		(IDENT_ADDR + TS_BIAS)
+
+#define TSUNAMI_MEM(h)		(TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x000000000UL)
+#define _TSUNAMI_IACK_SC(h)	(TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x1F8000000UL)
+#define TSUNAMI_IO(h)		(TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x1FC000000UL)
+#define TSUNAMI_CONF(h)		(TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x1FE000000UL)
+
+#define TSUNAMI_IACK_SC		_TSUNAMI_IACK_SC(0) /* hack! */
+
+
+/* 
+ * The canonical non-remaped I/O and MEM addresses have these values
+ * subtracted out.  This is arranged so that folks manipulating ISA
+ * devices can use their familiar numbers and have them map to bus 0.
+ */
+
+#define TSUNAMI_IO_BIAS          TSUNAMI_IO(0)
+#define TSUNAMI_MEM_BIAS         TSUNAMI_MEM(0)
+
+/* The IO address space is larger than 0xffff */
+#define TSUNAMI_IO_SPACE	(TSUNAMI_CONF(0) - TSUNAMI_IO(0))
+
+/* Offset between ram physical addresses and pci64 DAC bus addresses.  */
+#define TSUNAMI_DAC_OFFSET	(1UL << 40)
+
+/*
+ * Data structure for handling TSUNAMI machine checks:
+ */
+struct el_TSUNAMI_sysdata_mcheck {
+};
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * I/O functions:
+ *
+ * TSUNAMI, the 21??? PCI/memory support chipset for the EV6 (21264)
+ * can only use linear accesses to get at PCI memory and I/O spaces.
+ */
+
+/*
+ * Memory functions.  all accesses are done through linear space.
+ */
+extern void __iomem *tsunami_ioportmap(unsigned long addr);
+extern void __iomem *tsunami_ioremap(unsigned long addr, unsigned long size);
+__EXTERN_INLINE int tsunami_is_ioaddr(unsigned long addr)
+{
+	return addr >= TSUNAMI_BASE;
+}
+
+__EXTERN_INLINE int tsunami_is_mmio(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	return (addr & 0x100000000UL) == 0;
+}
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		tsunami
+#define tsunami_trivial_rw_bw	1
+#define tsunami_trivial_rw_lq	1
+#define tsunami_trivial_io_bw	1
+#define tsunami_trivial_io_lq	1
+#define tsunami_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_TSUNAMI__H__ */

arch/alpha/include/asm/core_wildfire.h

@@ -0,0 +1,319 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_WILDFIRE__H__
+#define __ALPHA_WILDFIRE__H__
+
+#include <linux/types.h>
+#include <asm/compiler.h>
+
+#define WILDFIRE_MAX_QBB	8	/* more than 8 requires other mods */
+#define WILDFIRE_PCA_PER_QBB	4
+#define WILDFIRE_IRQ_PER_PCA	64
+
+#define WILDFIRE_NR_IRQS \
+  (WILDFIRE_MAX_QBB * WILDFIRE_PCA_PER_QBB * WILDFIRE_IRQ_PER_PCA)
+
+extern unsigned char wildfire_hard_qbb_map[WILDFIRE_MAX_QBB];
+extern unsigned char wildfire_soft_qbb_map[WILDFIRE_MAX_QBB];
+#define QBB_MAP_EMPTY	0xff
+
+extern unsigned long wildfire_hard_qbb_mask;
+extern unsigned long wildfire_soft_qbb_mask;
+extern unsigned long wildfire_gp_mask;
+extern unsigned long wildfire_hs_mask;
+extern unsigned long wildfire_iop_mask;
+extern unsigned long wildfire_ior_mask;
+extern unsigned long wildfire_pca_mask;
+extern unsigned long wildfire_cpu_mask;
+extern unsigned long wildfire_mem_mask;
+
+#define WILDFIRE_QBB_EXISTS(qbbno) (wildfire_soft_qbb_mask & (1 << (qbbno)))
+
+#define WILDFIRE_MEM_EXISTS(qbbno) (wildfire_mem_mask & (0xf << ((qbbno) << 2)))
+
+#define WILDFIRE_PCA_EXISTS(qbbno, pcano) \
+		(wildfire_pca_mask & (1 << (((qbbno) << 2) + (pcano))))
+
+typedef struct {
+	volatile unsigned long csr __attribute__((aligned(64)));
+} wildfire_64;
+
+typedef struct {
+	volatile unsigned long csr __attribute__((aligned(256)));
+} wildfire_256;
+
+typedef struct {
+	volatile unsigned long csr __attribute__((aligned(2048)));
+} wildfire_2k;
+
+typedef struct {
+	wildfire_64	qsd_whami;
+	wildfire_64	qsd_rev;
+	wildfire_64	qsd_port_present;
+	wildfire_64	qsd_port_active;
+	wildfire_64	qsd_fault_ena;
+	wildfire_64	qsd_cpu_int_ena;
+	wildfire_64	qsd_mem_config;
+	wildfire_64	qsd_err_sum;
+	wildfire_64	ce_sum[4];
+	wildfire_64	dev_init[4];
+	wildfire_64	it_int[4];
+	wildfire_64	ip_int[4];
+	wildfire_64	uce_sum[4];
+	wildfire_64	se_sum__non_dev_int[4];
+	wildfire_64	scratch[4];
+	wildfire_64	qsd_timer;
+	wildfire_64	qsd_diag;
+} wildfire_qsd;
+
+typedef struct {
+	wildfire_256	qsd_whami;
+	wildfire_256	__pad1;
+	wildfire_256	ce_sum;
+	wildfire_256	dev_init;
+	wildfire_256	it_int;
+	wildfire_256	ip_int;
+	wildfire_256	uce_sum;
+	wildfire_256	se_sum;
+} wildfire_fast_qsd;
+
+typedef struct {
+	wildfire_2k	qsa_qbb_id;
+	wildfire_2k	__pad1;
+	wildfire_2k	qsa_port_ena;
+	wildfire_2k	qsa_scratch;
+	wildfire_2k	qsa_config[5];
+	wildfire_2k	qsa_ref_int;
+	wildfire_2k	qsa_qbb_pop[2];
+	wildfire_2k	qsa_dtag_fc;
+	wildfire_2k	__pad2[3];
+	wildfire_2k	qsa_diag;
+	wildfire_2k	qsa_diag_lock[4];
+	wildfire_2k	__pad3[11];
+	wildfire_2k	qsa_cpu_err_sum;
+	wildfire_2k	qsa_misc_err_sum;
+	wildfire_2k	qsa_tmo_err_sum;
+	wildfire_2k	qsa_err_ena;
+	wildfire_2k	qsa_tmo_config;
+	wildfire_2k	qsa_ill_cmd_err_sum;
+	wildfire_2k	__pad4[26];
+	wildfire_2k	qsa_busy_mask;
+	wildfire_2k	qsa_arr_valid;
+	wildfire_2k	__pad5[2];
+	wildfire_2k	qsa_port_map[4];
+	wildfire_2k	qsa_arr_addr[8];
+	wildfire_2k	qsa_arr_mask[8];
+} wildfire_qsa;
+
+typedef struct {
+	wildfire_64	ioa_config;
+	wildfire_64	iod_config;
+	wildfire_64	iop_switch_credits;
+	wildfire_64	__pad1;
+	wildfire_64	iop_hose_credits;
+	wildfire_64	__pad2[11];
+	struct {
+		wildfire_64	__pad3;
+		wildfire_64	init;
+	} iop_hose[4];
+	wildfire_64	ioa_hose_0_ctrl;
+	wildfire_64	iod_hose_0_ctrl;
+	wildfire_64	ioa_hose_1_ctrl;
+	wildfire_64	iod_hose_1_ctrl;
+	wildfire_64	ioa_hose_2_ctrl;
+	wildfire_64	iod_hose_2_ctrl;
+	wildfire_64	ioa_hose_3_ctrl;
+	wildfire_64	iod_hose_3_ctrl;
+	struct {
+		wildfire_64	target;
+		wildfire_64	__pad4;
+	} iop_dev_int[4];
+
+	wildfire_64	iop_err_int_target;
+	wildfire_64	__pad5[7];
+	wildfire_64	iop_qbb_err_sum;
+	wildfire_64	__pad6;
+	wildfire_64	iop_qbb_se_sum;
+	wildfire_64	__pad7;
+	wildfire_64	ioa_err_sum;
+	wildfire_64	iod_err_sum;
+	wildfire_64	__pad8[4];
+	wildfire_64	ioa_diag_force_err;
+	wildfire_64	iod_diag_force_err;
+	wildfire_64	__pad9[4];
+	wildfire_64	iop_diag_send_err_int;
+	wildfire_64	__pad10[15];
+	wildfire_64	ioa_scratch;
+	wildfire_64	iod_scratch;
+} wildfire_iop;
+
+typedef struct {
+	wildfire_2k	gpa_qbb_map[4];
+	wildfire_2k	gpa_mem_pop_map;
+	wildfire_2k	gpa_scratch;
+	wildfire_2k	gpa_diag;
+	wildfire_2k	gpa_config_0;
+	wildfire_2k	__pad1;
+	wildfire_2k	gpa_init_id;
+	wildfire_2k	gpa_config_2;
+	/* not complete */
+} wildfire_gp;
+
+typedef struct {
+	wildfire_64	pca_what_am_i;
+	wildfire_64	pca_err_sum;
+	wildfire_64	pca_diag_force_err;
+	wildfire_64	pca_diag_send_err_int;
+	wildfire_64	pca_hose_credits;
+	wildfire_64	pca_scratch;
+	wildfire_64	pca_micro_addr;
+	wildfire_64	pca_micro_data;
+	wildfire_64	pca_pend_int;
+	wildfire_64	pca_sent_int;
+	wildfire_64	__pad1;
+	wildfire_64	pca_stdio_edge_level;
+	wildfire_64	__pad2[52];
+	struct {
+		wildfire_64	target;
+		wildfire_64	enable;
+	} pca_int[4];
+	wildfire_64	__pad3[56];
+	wildfire_64	pca_alt_sent_int[32];
+} wildfire_pca;
+
+typedef struct {
+	wildfire_64	ne_what_am_i;
+	/* not complete */
+} wildfire_ne;
+
+typedef struct {
+	wildfire_64	fe_what_am_i;
+	/* not complete */
+} wildfire_fe;
+
+typedef struct {
+	wildfire_64	pci_io_addr_ext;
+	wildfire_64	pci_ctrl;
+	wildfire_64	pci_err_sum;
+	wildfire_64	pci_err_addr;
+	wildfire_64	pci_stall_cnt;
+	wildfire_64	pci_iack_special;
+	wildfire_64	__pad1[2];
+	wildfire_64	pci_pend_int;
+	wildfire_64	pci_sent_int;
+	wildfire_64	__pad2[54];
+	struct {
+		wildfire_64	wbase;
+		wildfire_64	wmask;
+		wildfire_64	tbase;
+	} pci_window[4];
+	wildfire_64	pci_flush_tlb;
+	wildfire_64	pci_perf_mon;
+} wildfire_pci;
+
+#define WILDFIRE_ENTITY_SHIFT		18
+
+#define WILDFIRE_GP_ENTITY		(0x10UL << WILDFIRE_ENTITY_SHIFT)
+#define WILDFIRE_IOP_ENTITY		(0x08UL << WILDFIRE_ENTITY_SHIFT)
+#define WILDFIRE_QSA_ENTITY		(0x04UL << WILDFIRE_ENTITY_SHIFT)
+#define WILDFIRE_QSD_ENTITY_SLOW	(0x05UL << WILDFIRE_ENTITY_SHIFT)
+#define WILDFIRE_QSD_ENTITY_FAST	(0x01UL << WILDFIRE_ENTITY_SHIFT)
+
+#define WILDFIRE_PCA_ENTITY(pca)	((0xc|(pca))<<WILDFIRE_ENTITY_SHIFT)
+
+#define WILDFIRE_BASE		(IDENT_ADDR | (1UL << 40))
+
+#define WILDFIRE_QBB_MASK	0x0fUL	/* for now, only 4 bits/16 QBBs */
+
+#define WILDFIRE_QBB(q)		((~((long)(q)) & WILDFIRE_QBB_MASK) << 36)
+#define WILDFIRE_HOSE(h)	((long)(h) << 33)
+
+#define WILDFIRE_QBB_IO(q)	(WILDFIRE_BASE | WILDFIRE_QBB(q))
+#define WILDFIRE_QBB_HOSE(q,h)	(WILDFIRE_QBB_IO(q) | WILDFIRE_HOSE(h))
+
+#define WILDFIRE_MEM(q,h)	(WILDFIRE_QBB_HOSE(q,h) | 0x000000000UL)
+#define WILDFIRE_CONF(q,h)	(WILDFIRE_QBB_HOSE(q,h) | 0x1FE000000UL)
+#define WILDFIRE_IO(q,h)	(WILDFIRE_QBB_HOSE(q,h) | 0x1FF000000UL)
+
+#define WILDFIRE_qsd(q) \
+ ((wildfire_qsd *)(WILDFIRE_QBB_IO(q)|WILDFIRE_QSD_ENTITY_SLOW|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_fast_qsd() \
+ ((wildfire_fast_qsd *)(WILDFIRE_QBB_IO(0)|WILDFIRE_QSD_ENTITY_FAST|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_qsa(q) \
+ ((wildfire_qsa *)(WILDFIRE_QBB_IO(q)|WILDFIRE_QSA_ENTITY|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_iop(q) \
+ ((wildfire_iop *)(WILDFIRE_QBB_IO(q)|WILDFIRE_IOP_ENTITY|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_gp(q) \
+ ((wildfire_gp *)(WILDFIRE_QBB_IO(q)|WILDFIRE_GP_ENTITY|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_pca(q,pca) \
+ ((wildfire_pca *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(pca)|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_ne(q,pca) \
+ ((wildfire_ne *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(pca)|(((1UL<<13)-1)<<23)|(1UL<<16)))
+
+#define WILDFIRE_fe(q,pca) \
+ ((wildfire_fe *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(pca)|(((1UL<<13)-1)<<23)|(3UL<<15)))
+
+#define WILDFIRE_pci(q,h) \
+ ((wildfire_pci *)(WILDFIRE_QBB_IO(q)|WILDFIRE_PCA_ENTITY(((h)&6)>>1)|((((h)&1)|2)<<16)|(((1UL<<13)-1)<<23)))
+
+#define WILDFIRE_IO_BIAS        WILDFIRE_IO(0,0)
+#define WILDFIRE_MEM_BIAS       WILDFIRE_MEM(0,0) /* ??? */
+
+/* The IO address space is larger than 0xffff */
+#define WILDFIRE_IO_SPACE	(8UL*1024*1024)
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * Memory functions.  all accesses are done through linear space.
+ */
+
+__EXTERN_INLINE void __iomem *wildfire_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)(addr + WILDFIRE_IO_BIAS);
+}
+
+__EXTERN_INLINE void __iomem *wildfire_ioremap(unsigned long addr, 
+					       unsigned long size)
+{
+	return (void __iomem *)(addr + WILDFIRE_MEM_BIAS);
+}
+
+__EXTERN_INLINE int wildfire_is_ioaddr(unsigned long addr)
+{
+	return addr >= WILDFIRE_BASE;
+}
+
+__EXTERN_INLINE int wildfire_is_mmio(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long)xaddr;
+	return (addr & 0x100000000UL) == 0;
+}
+
+#undef __IO_PREFIX
+#define __IO_PREFIX			wildfire
+#define wildfire_trivial_rw_bw		1
+#define wildfire_trivial_rw_lq		1
+#define wildfire_trivial_io_bw		1
+#define wildfire_trivial_io_lq		1
+#define wildfire_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_WILDFIRE__H__ */

arch/alpha/include/asm/delay.h

@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_DELAY_H
+#define __ALPHA_DELAY_H
+
+extern void __delay(int loops);
+extern void udelay(unsigned long usecs);
+
+extern void ndelay(unsigned long nsecs);
+#define ndelay ndelay
+
+#endif /* defined(__ALPHA_DELAY_H) */

arch/alpha/include/asm/device.h

@@ -0,0 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Arch specific extensions to struct device
+ */
+#include <asm-generic/device.h>
+

arch/alpha/include/asm/div64.h

@@ -0,0 +1 @@
+#include <asm-generic/div64.h>

arch/alpha/include/asm/dma-mapping.h

@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_DMA_MAPPING_H
+#define _ALPHA_DMA_MAPPING_H
+
+extern const struct dma_map_ops alpha_pci_ops;
+
+static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)
+{
+#ifdef CONFIG_ALPHA_JENSEN
+	return NULL;
+#else
+	return &alpha_pci_ops;
+#endif
+}
+
+#endif	/* _ALPHA_DMA_MAPPING_H */

arch/alpha/include/asm/dma.h

@@ -0,0 +1,377 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * include/asm-alpha/dma.h
+ *
+ * This is essentially the same as the i386 DMA stuff, as the AlphaPCs
+ * use ISA-compatible dma.  The only extension is support for high-page
+ * registers that allow to set the top 8 bits of a 32-bit DMA address.
+ * This register should be written last when setting up a DMA address
+ * as this will also enable DMA across 64 KB boundaries.
+ */
+
+/* $Id: dma.h,v 1.7 1992/12/14 00:29:34 root Exp root $
+ * linux/include/asm/dma.h: Defines for using and allocating dma channels.
+ * Written by Hennus Bergman, 1992.
+ * High DMA channel support & info by Hannu Savolainen
+ * and John Boyd, Nov. 1992.
+ */
+
+#ifndef _ASM_DMA_H
+#define _ASM_DMA_H
+
+#include <linux/spinlock.h>
+#include <asm/io.h>
+
+#define dma_outb	outb
+#define dma_inb		inb
+
+/*
+ * NOTES about DMA transfers:
+ *
+ *  controller 1: channels 0-3, byte operations, ports 00-1F
+ *  controller 2: channels 4-7, word operations, ports C0-DF
+ *
+ *  - ALL registers are 8 bits only, regardless of transfer size
+ *  - channel 4 is not used - cascades 1 into 2.
+ *  - channels 0-3 are byte - addresses/counts are for physical bytes
+ *  - channels 5-7 are word - addresses/counts are for physical words
+ *  - transfers must not cross physical 64K (0-3) or 128K (5-7) boundaries
+ *  - transfer count loaded to registers is 1 less than actual count
+ *  - controller 2 offsets are all even (2x offsets for controller 1)
+ *  - page registers for 5-7 don't use data bit 0, represent 128K pages
+ *  - page registers for 0-3 use bit 0, represent 64K pages
+ *
+ * DMA transfers are limited to the lower 16MB of _physical_ memory.  
+ * Note that addresses loaded into registers must be _physical_ addresses,
+ * not logical addresses (which may differ if paging is active).
+ *
+ *  Address mapping for channels 0-3:
+ *
+ *   A23 ... A16 A15 ... A8  A7 ... A0    (Physical addresses)
+ *    |  ...  |   |  ... |   |  ... |
+ *    |  ...  |   |  ... |   |  ... |
+ *    |  ...  |   |  ... |   |  ... |
+ *   P7  ...  P0  A7 ... A0  A7 ... A0   
+ * |    Page    | Addr MSB | Addr LSB |   (DMA registers)
+ *
+ *  Address mapping for channels 5-7:
+ *
+ *   A23 ... A17 A16 A15 ... A9 A8 A7 ... A1 A0    (Physical addresses)
+ *    |  ...  |   \   \   ... \  \  \  ... \  \
+ *    |  ...  |    \   \   ... \  \  \  ... \  (not used)
+ *    |  ...  |     \   \   ... \  \  \  ... \
+ *   P7  ...  P1 (0) A7 A6  ... A0 A7 A6 ... A0   
+ * |      Page      |  Addr MSB   |  Addr LSB  |   (DMA registers)
+ *
+ * Again, channels 5-7 transfer _physical_ words (16 bits), so addresses
+ * and counts _must_ be word-aligned (the lowest address bit is _ignored_ at
+ * the hardware level, so odd-byte transfers aren't possible).
+ *
+ * Transfer count (_not # bytes_) is limited to 64K, represented as actual
+ * count - 1 : 64K => 0xFFFF, 1 => 0x0000.  Thus, count is always 1 or more,
+ * and up to 128K bytes may be transferred on channels 5-7 in one operation. 
+ *
+ */
+
+#define MAX_DMA_CHANNELS	8
+
+/*
+  ISA DMA limitations on Alpha platforms,
+
+  These may be due to SIO (PCI<->ISA bridge) chipset limitation, or
+  just a wiring limit.
+*/
+
+/* The maximum address for ISA DMA transfer on Alpha XL, due to an
+   hardware SIO limitation, is 64MB.
+*/
+#define ALPHA_XL_MAX_ISA_DMA_ADDRESS		0x04000000UL
+
+/* The maximum address for ISA DMA transfer on RUFFIAN,
+   due to an hardware SIO limitation, is 16MB.
+*/
+#define ALPHA_RUFFIAN_MAX_ISA_DMA_ADDRESS	0x01000000UL
+
+/* The maximum address for ISA DMA transfer on SABLE, and some ALCORs,
+   due to an hardware SIO chip limitation, is 2GB.
+*/
+#define ALPHA_SABLE_MAX_ISA_DMA_ADDRESS		0x80000000UL
+#define ALPHA_ALCOR_MAX_ISA_DMA_ADDRESS		0x80000000UL
+
+/*
+  Maximum address for all the others is the complete 32-bit bus
+  address space.
+*/
+#define ALPHA_MAX_ISA_DMA_ADDRESS		0x100000000UL
+
+#ifdef CONFIG_ALPHA_GENERIC
+# define MAX_ISA_DMA_ADDRESS		(alpha_mv.max_isa_dma_address)
+#else
+# if defined(CONFIG_ALPHA_XL)
+#  define MAX_ISA_DMA_ADDRESS		ALPHA_XL_MAX_ISA_DMA_ADDRESS
+# elif defined(CONFIG_ALPHA_RUFFIAN)
+#  define MAX_ISA_DMA_ADDRESS		ALPHA_RUFFIAN_MAX_ISA_DMA_ADDRESS
+# elif defined(CONFIG_ALPHA_SABLE)
+#  define MAX_ISA_DMA_ADDRESS		ALPHA_SABLE_MAX_ISA_DMA_ADDRESS
+# elif defined(CONFIG_ALPHA_ALCOR)
+#  define MAX_ISA_DMA_ADDRESS		ALPHA_ALCOR_MAX_ISA_DMA_ADDRESS
+# else
+#  define MAX_ISA_DMA_ADDRESS		ALPHA_MAX_ISA_DMA_ADDRESS
+# endif
+#endif
+
+/* If we have the iommu, we don't have any address limitations on DMA.
+   Otherwise (Nautilus, RX164), we have to have 0-16 Mb DMA zone
+   like i386. */
+#define MAX_DMA_ADDRESS		(alpha_mv.mv_pci_tbi ?	\
+				 ~0UL : IDENT_ADDR + 0x01000000)
+
+/* 8237 DMA controllers */
+#define IO_DMA1_BASE	0x00	/* 8 bit slave DMA, channels 0..3 */
+#define IO_DMA2_BASE	0xC0	/* 16 bit master DMA, ch 4(=slave input)..7 */
+
+/* DMA controller registers */
+#define DMA1_CMD_REG		0x08	/* command register (w) */
+#define DMA1_STAT_REG		0x08	/* status register (r) */
+#define DMA1_REQ_REG            0x09    /* request register (w) */
+#define DMA1_MASK_REG		0x0A	/* single-channel mask (w) */
+#define DMA1_MODE_REG		0x0B	/* mode register (w) */
+#define DMA1_CLEAR_FF_REG	0x0C	/* clear pointer flip-flop (w) */
+#define DMA1_TEMP_REG           0x0D    /* Temporary Register (r) */
+#define DMA1_RESET_REG		0x0D	/* Master Clear (w) */
+#define DMA1_CLR_MASK_REG       0x0E    /* Clear Mask */
+#define DMA1_MASK_ALL_REG       0x0F    /* all-channels mask (w) */
+#define DMA1_EXT_MODE_REG	(0x400 | DMA1_MODE_REG)
+
+#define DMA2_CMD_REG		0xD0	/* command register (w) */
+#define DMA2_STAT_REG		0xD0	/* status register (r) */
+#define DMA2_REQ_REG            0xD2    /* request register (w) */
+#define DMA2_MASK_REG		0xD4	/* single-channel mask (w) */
+#define DMA2_MODE_REG		0xD6	/* mode register (w) */
+#define DMA2_CLEAR_FF_REG	0xD8	/* clear pointer flip-flop (w) */
+#define DMA2_TEMP_REG           0xDA    /* Temporary Register (r) */
+#define DMA2_RESET_REG		0xDA	/* Master Clear (w) */
+#define DMA2_CLR_MASK_REG       0xDC    /* Clear Mask */
+#define DMA2_MASK_ALL_REG       0xDE    /* all-channels mask (w) */
+#define DMA2_EXT_MODE_REG	(0x400 | DMA2_MODE_REG)
+
+#define DMA_ADDR_0              0x00    /* DMA address registers */
+#define DMA_ADDR_1              0x02
+#define DMA_ADDR_2              0x04
+#define DMA_ADDR_3              0x06
+#define DMA_ADDR_4              0xC0
+#define DMA_ADDR_5              0xC4
+#define DMA_ADDR_6              0xC8
+#define DMA_ADDR_7              0xCC
+
+#define DMA_CNT_0               0x01    /* DMA count registers */
+#define DMA_CNT_1               0x03
+#define DMA_CNT_2               0x05
+#define DMA_CNT_3               0x07
+#define DMA_CNT_4               0xC2
+#define DMA_CNT_5               0xC6
+#define DMA_CNT_6               0xCA
+#define DMA_CNT_7               0xCE
+
+#define DMA_PAGE_0              0x87    /* DMA page registers */
+#define DMA_PAGE_1              0x83
+#define DMA_PAGE_2              0x81
+#define DMA_PAGE_3              0x82
+#define DMA_PAGE_5              0x8B
+#define DMA_PAGE_6              0x89
+#define DMA_PAGE_7              0x8A
+
+#define DMA_HIPAGE_0		(0x400 | DMA_PAGE_0)
+#define DMA_HIPAGE_1		(0x400 | DMA_PAGE_1)
+#define DMA_HIPAGE_2		(0x400 | DMA_PAGE_2)
+#define DMA_HIPAGE_3		(0x400 | DMA_PAGE_3)
+#define DMA_HIPAGE_4		(0x400 | DMA_PAGE_4)
+#define DMA_HIPAGE_5		(0x400 | DMA_PAGE_5)
+#define DMA_HIPAGE_6		(0x400 | DMA_PAGE_6)
+#define DMA_HIPAGE_7		(0x400 | DMA_PAGE_7)
+
+#define DMA_MODE_READ	0x44	/* I/O to memory, no autoinit, increment, single mode */
+#define DMA_MODE_WRITE	0x48	/* memory to I/O, no autoinit, increment, single mode */
+#define DMA_MODE_CASCADE 0xC0   /* pass thru DREQ->HRQ, DACK<-HLDA only */
+
+#define DMA_AUTOINIT	0x10
+
+extern spinlock_t  dma_spin_lock;
+
+static __inline__ unsigned long claim_dma_lock(void)
+{
+	unsigned long flags;
+	spin_lock_irqsave(&dma_spin_lock, flags);
+	return flags;
+}
+
+static __inline__ void release_dma_lock(unsigned long flags)
+{
+	spin_unlock_irqrestore(&dma_spin_lock, flags);
+}
+
+/* enable/disable a specific DMA channel */
+static __inline__ void enable_dma(unsigned int dmanr)
+{
+	if (dmanr<=3)
+		dma_outb(dmanr,  DMA1_MASK_REG);
+	else
+		dma_outb(dmanr & 3,  DMA2_MASK_REG);
+}
+
+static __inline__ void disable_dma(unsigned int dmanr)
+{
+	if (dmanr<=3)
+		dma_outb(dmanr | 4,  DMA1_MASK_REG);
+	else
+		dma_outb((dmanr & 3) | 4,  DMA2_MASK_REG);
+}
+
+/* Clear the 'DMA Pointer Flip Flop'.
+ * Write 0 for LSB/MSB, 1 for MSB/LSB access.
+ * Use this once to initialize the FF to a known state.
+ * After that, keep track of it. :-)
+ * --- In order to do that, the DMA routines below should ---
+ * --- only be used while interrupts are disabled! ---
+ */
+static __inline__ void clear_dma_ff(unsigned int dmanr)
+{
+	if (dmanr<=3)
+		dma_outb(0,  DMA1_CLEAR_FF_REG);
+	else
+		dma_outb(0,  DMA2_CLEAR_FF_REG);
+}
+
+/* set mode (above) for a specific DMA channel */
+static __inline__ void set_dma_mode(unsigned int dmanr, char mode)
+{
+	if (dmanr<=3)
+		dma_outb(mode | dmanr,  DMA1_MODE_REG);
+	else
+		dma_outb(mode | (dmanr&3),  DMA2_MODE_REG);
+}
+
+/* set extended mode for a specific DMA channel */
+static __inline__ void set_dma_ext_mode(unsigned int dmanr, char ext_mode)
+{
+	if (dmanr<=3)
+		dma_outb(ext_mode | dmanr,  DMA1_EXT_MODE_REG);
+	else
+		dma_outb(ext_mode | (dmanr&3),  DMA2_EXT_MODE_REG);
+}
+
+/* Set only the page register bits of the transfer address.
+ * This is used for successive transfers when we know the contents of
+ * the lower 16 bits of the DMA current address register.
+ */
+static __inline__ void set_dma_page(unsigned int dmanr, unsigned int pagenr)
+{
+	switch(dmanr) {
+		case 0:
+			dma_outb(pagenr, DMA_PAGE_0);
+			dma_outb((pagenr >> 8), DMA_HIPAGE_0);
+			break;
+		case 1:
+			dma_outb(pagenr, DMA_PAGE_1);
+			dma_outb((pagenr >> 8), DMA_HIPAGE_1);
+			break;
+		case 2:
+			dma_outb(pagenr, DMA_PAGE_2);
+			dma_outb((pagenr >> 8), DMA_HIPAGE_2);
+			break;
+		case 3:
+			dma_outb(pagenr, DMA_PAGE_3);
+			dma_outb((pagenr >> 8), DMA_HIPAGE_3);
+			break;
+		case 5:
+			dma_outb(pagenr & 0xfe, DMA_PAGE_5);
+			dma_outb((pagenr >> 8), DMA_HIPAGE_5);
+			break;
+		case 6:
+			dma_outb(pagenr & 0xfe, DMA_PAGE_6);
+			dma_outb((pagenr >> 8), DMA_HIPAGE_6);
+			break;
+		case 7:
+			dma_outb(pagenr & 0xfe, DMA_PAGE_7);
+			dma_outb((pagenr >> 8), DMA_HIPAGE_7);
+			break;
+	}
+}
+
+
+/* Set transfer address & page bits for specific DMA channel.
+ * Assumes dma flipflop is clear.
+ */
+static __inline__ void set_dma_addr(unsigned int dmanr, unsigned int a)
+{
+	if (dmanr <= 3)  {
+	    dma_outb( a & 0xff, ((dmanr&3)<<1) + IO_DMA1_BASE );
+            dma_outb( (a>>8) & 0xff, ((dmanr&3)<<1) + IO_DMA1_BASE );
+	}  else  {
+	    dma_outb( (a>>1) & 0xff, ((dmanr&3)<<2) + IO_DMA2_BASE );
+	    dma_outb( (a>>9) & 0xff, ((dmanr&3)<<2) + IO_DMA2_BASE );
+	}
+	set_dma_page(dmanr, a>>16);	/* set hipage last to enable 32-bit mode */
+}
+
+
+/* Set transfer size (max 64k for DMA1..3, 128k for DMA5..7) for
+ * a specific DMA channel.
+ * You must ensure the parameters are valid.
+ * NOTE: from a manual: "the number of transfers is one more
+ * than the initial word count"! This is taken into account.
+ * Assumes dma flip-flop is clear.
+ * NOTE 2: "count" represents _bytes_ and must be even for channels 5-7.
+ */
+static __inline__ void set_dma_count(unsigned int dmanr, unsigned int count)
+{
+        count--;
+	if (dmanr <= 3)  {
+	    dma_outb( count & 0xff, ((dmanr&3)<<1) + 1 + IO_DMA1_BASE );
+	    dma_outb( (count>>8) & 0xff, ((dmanr&3)<<1) + 1 + IO_DMA1_BASE );
+        } else {
+	    dma_outb( (count>>1) & 0xff, ((dmanr&3)<<2) + 2 + IO_DMA2_BASE );
+	    dma_outb( (count>>9) & 0xff, ((dmanr&3)<<2) + 2 + IO_DMA2_BASE );
+        }
+}
+
+
+/* Get DMA residue count. After a DMA transfer, this
+ * should return zero. Reading this while a DMA transfer is
+ * still in progress will return unpredictable results.
+ * If called before the channel has been used, it may return 1.
+ * Otherwise, it returns the number of _bytes_ left to transfer.
+ *
+ * Assumes DMA flip-flop is clear.
+ */
+static __inline__ int get_dma_residue(unsigned int dmanr)
+{
+	unsigned int io_port = (dmanr<=3)? ((dmanr&3)<<1) + 1 + IO_DMA1_BASE
+					 : ((dmanr&3)<<2) + 2 + IO_DMA2_BASE;
+
+	/* using short to get 16-bit wrap around */
+	unsigned short count;
+
+	count = 1 + dma_inb(io_port);
+	count += dma_inb(io_port) << 8;
+	
+	return (dmanr<=3)? count : (count<<1);
+}
+
+
+/* These are in kernel/dma.c: */
+extern int request_dma(unsigned int dmanr, const char * device_id);	/* reserve a DMA channel */
+extern void free_dma(unsigned int dmanr);	/* release it again */
+#define KERNEL_HAVE_CHECK_DMA
+extern int check_dma(unsigned int dmanr);
+
+/* From PCI */
+
+#ifdef CONFIG_PCI
+extern int isa_dma_bridge_buggy;
+#else
+#define isa_dma_bridge_buggy 	(0)
+#endif
+
+
+#endif /* _ASM_DMA_H */

arch/alpha/include/asm/elf.h

@@ -0,0 +1,166 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_ALPHA_ELF_H
+#define __ASM_ALPHA_ELF_H
+
+#include <asm/auxvec.h>
+#include <asm/special_insns.h>
+
+/* Special values for the st_other field in the symbol table.  */
+
+#define STO_ALPHA_NOPV		0x80
+#define STO_ALPHA_STD_GPLOAD	0x88
+
+/*
+ * Alpha ELF relocation types
+ */
+#define R_ALPHA_NONE            0       /* No reloc */
+#define R_ALPHA_REFLONG         1       /* Direct 32 bit */
+#define R_ALPHA_REFQUAD         2       /* Direct 64 bit */
+#define R_ALPHA_GPREL32         3       /* GP relative 32 bit */
+#define R_ALPHA_LITERAL         4       /* GP relative 16 bit w/optimization */
+#define R_ALPHA_LITUSE          5       /* Optimization hint for LITERAL */
+#define R_ALPHA_GPDISP          6       /* Add displacement to GP */
+#define R_ALPHA_BRADDR          7       /* PC+4 relative 23 bit shifted */
+#define R_ALPHA_HINT            8       /* PC+4 relative 16 bit shifted */
+#define R_ALPHA_SREL16          9       /* PC relative 16 bit */
+#define R_ALPHA_SREL32          10      /* PC relative 32 bit */
+#define R_ALPHA_SREL64          11      /* PC relative 64 bit */
+#define R_ALPHA_GPRELHIGH       17      /* GP relative 32 bit, high 16 bits */
+#define R_ALPHA_GPRELLOW        18      /* GP relative 32 bit, low 16 bits */
+#define R_ALPHA_GPREL16         19      /* GP relative 16 bit */
+#define R_ALPHA_COPY            24      /* Copy symbol at runtime */
+#define R_ALPHA_GLOB_DAT        25      /* Create GOT entry */
+#define R_ALPHA_JMP_SLOT        26      /* Create PLT entry */
+#define R_ALPHA_RELATIVE        27      /* Adjust by program base */
+#define R_ALPHA_BRSGP		28
+#define R_ALPHA_TLSGD           29
+#define R_ALPHA_TLS_LDM         30
+#define R_ALPHA_DTPMOD64        31
+#define R_ALPHA_GOTDTPREL       32
+#define R_ALPHA_DTPREL64        33
+#define R_ALPHA_DTPRELHI        34
+#define R_ALPHA_DTPRELLO        35
+#define R_ALPHA_DTPREL16        36
+#define R_ALPHA_GOTTPREL        37
+#define R_ALPHA_TPREL64         38
+#define R_ALPHA_TPRELHI         39
+#define R_ALPHA_TPRELLO         40
+#define R_ALPHA_TPREL16         41
+
+#define SHF_ALPHA_GPREL		0x10000000
+
+/* Legal values for e_flags field of Elf64_Ehdr.  */
+
+#define EF_ALPHA_32BIT		1	/* All addresses are below 2GB */
+
+/*
+ * ELF register definitions..
+ */
+
+/*
+ * The OSF/1 version of <sys/procfs.h> makes gregset_t 46 entries long.
+ * I have no idea why that is so.  For now, we just leave it at 33
+ * (32 general regs + processor status word). 
+ */
+#define ELF_NGREG	33
+#define ELF_NFPREG	32
+
+typedef unsigned long elf_greg_t;
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+typedef double elf_fpreg_t;
+typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) ((x)->e_machine == EM_ALPHA)
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS	ELFCLASS64
+#define ELF_DATA	ELFDATA2LSB
+#define ELF_ARCH	EM_ALPHA
+
+#define ELF_EXEC_PAGESIZE	8192
+
+/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
+   use of this is to invoke "./ld.so someprog" to test out a new version of
+   the loader.  We need to make sure that it is out of the way of the program
+   that it will "exec", and that there is sufficient room for the brk.  */
+
+#define ELF_ET_DYN_BASE		(TASK_UNMAPPED_BASE + 0x1000000)
+
+/* $0 is set by ld.so to a pointer to a function which might be 
+   registered using atexit.  This provides a mean for the dynamic
+   linker to call DT_FINI functions for shared libraries that have
+   been loaded before the code runs.
+
+   So that we can use the same startup file with static executables,
+   we start programs with a value of 0 to indicate that there is no
+   such function.  */
+
+#define ELF_PLAT_INIT(_r, load_addr)	_r->r0 = 0
+
+/* The registers are laid out in pt_regs for PAL and syscall
+   convenience.  Re-order them for the linear elf_gregset_t.  */
+
+struct pt_regs;
+struct thread_info;
+struct task_struct;
+extern void dump_elf_thread(elf_greg_t *dest, struct pt_regs *pt,
+			    struct thread_info *ti);
+#define ELF_CORE_COPY_REGS(DEST, REGS) \
+	dump_elf_thread(DEST, REGS, current_thread_info());
+
+/* Similar, but for a thread other than current.  */
+
+extern int dump_elf_task(elf_greg_t *dest, struct task_struct *task);
+#define ELF_CORE_COPY_TASK_REGS(TASK, DEST) \
+	dump_elf_task(*(DEST), TASK)
+
+/* Similar, but for the FP registers.  */
+
+extern int dump_elf_task_fp(elf_fpreg_t *dest, struct task_struct *task);
+#define ELF_CORE_COPY_FPREGS(TASK, DEST) \
+	dump_elf_task_fp(*(DEST), TASK)
+
+/* This yields a mask that user programs can use to figure out what
+   instruction set this CPU supports.  This is trivial on Alpha, 
+   but not so on other machines. */
+
+#define ELF_HWCAP  (~amask(-1))
+
+/* This yields a string that ld.so will use to load implementation
+   specific libraries for optimization.  This is more specific in
+   intent than poking at uname or /proc/cpuinfo.  */
+
+#define ELF_PLATFORM				\
+({						\
+	enum implver_enum i_ = implver();	\
+	( i_ == IMPLVER_EV4 ? "ev4"		\
+	: i_ == IMPLVER_EV5			\
+	  ? (amask(AMASK_BWX) ? "ev5" : "ev56")	\
+	: amask (AMASK_CIX) ? "ev6" : "ev67");	\
+})
+
+#define SET_PERSONALITY(EX)					\
+	set_personality(((EX).e_flags & EF_ALPHA_32BIT)		\
+	   ? PER_LINUX_32BIT : PER_LINUX)
+
+extern int alpha_l1i_cacheshape;
+extern int alpha_l1d_cacheshape;
+extern int alpha_l2_cacheshape;
+extern int alpha_l3_cacheshape;
+
+/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
+#define ARCH_DLINFO						\
+  do {								\
+    NEW_AUX_ENT(AT_L1I_CACHESHAPE, alpha_l1i_cacheshape);	\
+    NEW_AUX_ENT(AT_L1D_CACHESHAPE, alpha_l1d_cacheshape);	\
+    NEW_AUX_ENT(AT_L2_CACHESHAPE, alpha_l2_cacheshape);		\
+    NEW_AUX_ENT(AT_L3_CACHESHAPE, alpha_l3_cacheshape);		\
+  } while (0)
+
+#endif /* __ASM_ALPHA_ELF_H */

arch/alpha/include/asm/emergency-restart.h

@@ -0,0 +1,6 @@
+#ifndef _ASM_EMERGENCY_RESTART_H
+#define _ASM_EMERGENCY_RESTART_H
+
+#include <asm-generic/emergency-restart.h>
+
+#endif /* _ASM_EMERGENCY_RESTART_H */

arch/alpha/include/asm/err_common.h

@@ -0,0 +1,119 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ *	linux/include/asm-alpha/err_common.h
+ *
+ *	Copyright (C) 2000 Jeff Wiedemeier (Compaq Computer Corporation)
+ *
+ *	Contains declarations and macros to support Alpha error handling
+ * 	implementations.
+ */
+
+#ifndef __ALPHA_ERR_COMMON_H
+#define __ALPHA_ERR_COMMON_H 1
+
+/*
+ * SCB Vector definitions
+ */
+#define SCB_Q_SYSERR	0x620
+#define SCB_Q_PROCERR	0x630
+#define SCB_Q_SYSMCHK	0x660
+#define SCB_Q_PROCMCHK	0x670
+#define SCB_Q_SYSEVENT	0x680
+
+/*
+ * Disposition definitions for logout frame parser
+ */
+#define MCHK_DISPOSITION_UNKNOWN_ERROR		0x00
+#define MCHK_DISPOSITION_REPORT			0x01
+#define MCHK_DISPOSITION_DISMISS		0x02
+
+/*
+ * Error Log definitions
+ */
+/*
+ * Types
+ */
+
+#define EL_CLASS__TERMINATION		(0)
+#  define EL_TYPE__TERMINATION__TERMINATION		(0)
+#define EL_CLASS__HEADER		(5)
+#  define EL_TYPE__HEADER__SYSTEM_ERROR_FRAME		(1)
+#  define EL_TYPE__HEADER__SYSTEM_EVENT_FRAME		(2)
+#  define EL_TYPE__HEADER__HALT_FRAME			(3)
+#  define EL_TYPE__HEADER__LOGOUT_FRAME			(19)
+#define EL_CLASS__GENERAL_NOTIFICATION	(9)
+#define EL_CLASS__PCI_ERROR_FRAME	(11)
+#define EL_CLASS__REGATTA_FAMILY	(12)
+#  define EL_TYPE__REGATTA__PROCESSOR_ERROR_FRAME	(1)
+#  define EL_TYPE__REGATTA__SYSTEM_ERROR_FRAME		(2)
+#  define EL_TYPE__REGATTA__ENVIRONMENTAL_FRAME		(3)
+#  define EL_TYPE__REGATTA__TITAN_PCHIP0_EXTENDED	(8)
+#  define EL_TYPE__REGATTA__TITAN_PCHIP1_EXTENDED	(9)
+#  define EL_TYPE__REGATTA__TITAN_MEMORY_EXTENDED	(10)
+#  define EL_TYPE__REGATTA__PROCESSOR_DBL_ERROR_HALT	(11)
+#  define EL_TYPE__REGATTA__SYSTEM_DBL_ERROR_HALT	(12)
+#define EL_CLASS__PAL                   (14)
+#  define EL_TYPE__PAL__LOGOUT_FRAME                    (1)
+#  define EL_TYPE__PAL__EV7_PROCESSOR			(4)
+#  define EL_TYPE__PAL__EV7_ZBOX			(5)
+#  define EL_TYPE__PAL__EV7_RBOX			(6)
+#  define EL_TYPE__PAL__EV7_IO				(7)
+#  define EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE	(10)
+#  define EL_TYPE__PAL__ENV__AIRMOVER_FAN		(11)
+#  define EL_TYPE__PAL__ENV__VOLTAGE			(12)
+#  define EL_TYPE__PAL__ENV__INTRUSION			(13)
+#  define EL_TYPE__PAL__ENV__POWER_SUPPLY		(14)
+#  define EL_TYPE__PAL__ENV__LAN			(15)
+#  define EL_TYPE__PAL__ENV__HOT_PLUG			(16)
+
+union el_timestamp {
+	struct {
+		u8 second;
+		u8 minute;
+		u8 hour;
+		u8 day;
+		u8 month;
+		u8 year;
+	} b;
+	u64 as_int;
+};
+
+struct el_subpacket {
+	u16 length;		/* length of header (in bytes)	*/
+	u16 class;		/* header class and type...   	*/
+	u16 type;		/* ...determine content     	*/
+	u16 revision;		/* header revision 		*/
+	union {
+		struct {	/* Class 5, Type 1 - System Error	*/
+			u32 frame_length;
+			u32 frame_packet_count;			
+		} sys_err;			
+		struct {	/* Class 5, Type 2 - System Event 	*/
+			union el_timestamp timestamp;
+			u32 frame_length;
+			u32 frame_packet_count;			
+		} sys_event;
+		struct {	/* Class 5, Type 3 - Double Error Halt	*/
+			u16 halt_code;
+			u16 reserved;
+			union el_timestamp timestamp;
+			u32 frame_length;
+			u32 frame_packet_count;
+		} err_halt;
+		struct {	/* Clasee 5, Type 19 - Logout Frame Header */
+			u32 frame_length;
+			u32 frame_flags;
+			u32 cpu_offset;	
+			u32 system_offset;
+		} logout_header;
+		struct {	/* Class 12 - Regatta			*/
+			u64 cpuid;
+			u64 data_start[1];
+		} regatta_frame;
+		struct {	/* Raw 				        */
+			u64 data_start[1];
+		} raw;
+	} by_type;
+};
+
+#endif /* __ALPHA_ERR_COMMON_H */

arch/alpha/include/asm/err_ev6.h

@@ -0,0 +1,6 @@
+#ifndef __ALPHA_ERR_EV6_H
+#define __ALPHA_ERR_EV6_H 1
+
+/* Dummy include for now. */
+
+#endif /* __ALPHA_ERR_EV6_H */

arch/alpha/include/asm/err_ev7.h

@@ -0,0 +1,203 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_ERR_EV7_H
+#define __ALPHA_ERR_EV7_H 1
+
+/*
+ * Data for el packet class PAL (14), type LOGOUT_FRAME (1)
+ */
+struct ev7_pal_logout_subpacket {
+	u32 mchk_code;
+	u32 subpacket_count;
+	u64 whami;
+	u64 rbox_whami;
+	u64 rbox_int;
+	u64 exc_addr;
+	union el_timestamp timestamp;
+	u64 halt_code;
+	u64 reserved;
+};
+
+/*
+ * Data for el packet class PAL (14), type EV7_PROCESSOR (4)
+ */
+struct ev7_pal_processor_subpacket {
+	u64 i_stat;
+	u64 dc_stat;
+	u64 c_addr;
+	u64 c_syndrome_1;
+	u64 c_syndrome_0;
+	u64 c_stat;
+	u64 c_sts;
+	u64 mm_stat;
+	u64 exc_addr;
+	u64 ier_cm;
+	u64 isum;
+	u64 pal_base;
+	u64 i_ctl;
+	u64 process_context;
+	u64 cbox_ctl;
+	u64 cbox_stp_ctl;
+	u64 cbox_acc_ctl;
+	u64 cbox_lcl_set;
+	u64 cbox_gbl_set;
+	u64 bbox_ctl;
+	u64 bbox_err_sts;
+	u64 bbox_err_idx;
+	u64 cbox_ddp_err_sts;
+	u64 bbox_dat_rmp;
+	u64 reserved[2];
+};
+
+/*
+ * Data for el packet class PAL (14), type EV7_ZBOX (5)
+ */
+struct ev7_pal_zbox_subpacket {
+	u32 zbox0_dram_err_status_1;
+	u32 zbox0_dram_err_status_2;
+	u32 zbox0_dram_err_status_3;
+	u32 zbox0_dram_err_ctl;
+	u32 zbox0_dram_err_adr;
+	u32 zbox0_dift_timeout;
+	u32 zbox0_dram_mapper_ctl;
+	u32 zbox0_frc_err_adr;
+	u32 zbox0_dift_err_status;
+	u32 reserved1;
+	u32 zbox1_dram_err_status_1;
+	u32 zbox1_dram_err_status_2;
+	u32 zbox1_dram_err_status_3;
+	u32 zbox1_dram_err_ctl;
+	u32 zbox1_dram_err_adr;
+	u32 zbox1_dift_timeout;
+	u32 zbox1_dram_mapper_ctl;
+	u32 zbox1_frc_err_adr;
+	u32 zbox1_dift_err_status;
+	u32 reserved2;
+	u64 cbox_ctl;
+	u64 cbox_stp_ctl;
+	u64 zbox0_error_pa;
+	u64 zbox1_error_pa;
+	u64 zbox0_ored_syndrome;
+	u64 zbox1_ored_syndrome;
+	u64 reserved3[2];
+};
+
+/*
+ * Data for el packet class PAL (14), type EV7_RBOX (6)
+ */
+struct ev7_pal_rbox_subpacket {
+	u64 rbox_cfg;
+	u64 rbox_n_cfg;
+	u64 rbox_s_cfg;
+	u64 rbox_e_cfg;
+	u64 rbox_w_cfg;
+	u64 rbox_n_err;
+	u64 rbox_s_err;
+	u64 rbox_e_err;
+	u64 rbox_w_err;
+	u64 rbox_io_cfg;
+	u64 rbox_io_err;
+	u64 rbox_l_err;
+	u64 rbox_whoami;
+	u64 rbox_imask;
+	u64 rbox_intq;
+	u64 rbox_int;
+	u64 reserved[2];
+};
+
+/*
+ * Data for el packet class PAL (14), type EV7_IO (7)
+ */
+struct ev7_pal_io_one_port {
+	u64 pox_err_sum;
+	u64 pox_tlb_err;
+	u64 pox_spl_cmplt;
+	u64 pox_trans_sum;
+	u64 pox_first_err;
+	u64 pox_mult_err;
+	u64 pox_dm_source;
+	u64 pox_dm_dest;
+	u64 pox_dm_size;
+	u64 pox_dm_ctrl;
+	u64 reserved;
+};
+
+struct ev7_pal_io_subpacket {
+	u64 io_asic_rev;
+	u64 io_sys_rev;
+	u64 io7_uph;
+	u64 hpi_ctl;
+	u64 crd_ctl;
+	u64 hei_ctl;
+	u64 po7_error_sum;
+	u64 po7_uncrr_sym;
+	u64 po7_crrct_sym;
+	u64 po7_ugbge_sym;
+	u64 po7_err_pkt0;
+	u64 po7_err_pkt1;
+	u64 reserved[2];
+	struct ev7_pal_io_one_port ports[4];
+};
+
+/*
+ * Environmental subpacket. Data used for el packets:
+ * 	   class PAL (14), type AMBIENT_TEMPERATURE (10)
+ * 	   class PAL (14), type AIRMOVER_FAN (11)
+ * 	   class PAL (14), type VOLTAGE (12)
+ * 	   class PAL (14), type INTRUSION (13)
+ *	   class PAL (14), type POWER_SUPPLY (14)
+ *	   class PAL (14), type LAN (15)
+ *	   class PAL (14), type HOT_PLUG (16)
+ */
+struct ev7_pal_environmental_subpacket {
+	u16 cabinet;
+	u16 drawer;
+	u16 reserved1[2];
+	u8 module_type;
+	u8 unit_id;		/* unit reporting condition */
+	u8 reserved2;
+	u8 condition;		/* condition reported       */
+};
+
+/*
+ * Convert environmental type to index
+ */
+static inline int ev7_lf_env_index(int type)
+{
+	BUG_ON((type < EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE) 
+	       || (type > EL_TYPE__PAL__ENV__HOT_PLUG));
+
+	return type - EL_TYPE__PAL__ENV__AMBIENT_TEMPERATURE;
+}
+
+/*
+ * Data for generic el packet class PAL.
+ */
+struct ev7_pal_subpacket {
+	union {
+		struct ev7_pal_logout_subpacket logout;	     /* Type     1 */
+		struct ev7_pal_processor_subpacket ev7;	     /* Type     4 */
+		struct ev7_pal_zbox_subpacket zbox;	     /* Type     5 */
+		struct ev7_pal_rbox_subpacket rbox;	     /* Type     6 */
+		struct ev7_pal_io_subpacket io;		     /* Type     7 */
+		struct ev7_pal_environmental_subpacket env;  /* Type 10-16 */
+		u64 as_quad[1];				     /* Raw u64    */
+	} by_type;
+};
+
+/*
+ * Struct to contain collected logout from subpackets.
+ */
+struct ev7_lf_subpackets {
+	struct ev7_pal_logout_subpacket *logout;		/* Type  1 */
+	struct ev7_pal_processor_subpacket *ev7;		/* Type  4 */
+	struct ev7_pal_zbox_subpacket *zbox;			/* Type  5 */
+	struct ev7_pal_rbox_subpacket *rbox;			/* Type  6 */
+	struct ev7_pal_io_subpacket *io;			/* Type  7 */
+	struct ev7_pal_environmental_subpacket *env[7];	     /* Type 10-16 */
+
+	unsigned int io_pid;
+};
+
+#endif /* __ALPHA_ERR_EV7_H */
+
+

arch/alpha/include/asm/extable.h

@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_EXTABLE_H
+#define _ASM_EXTABLE_H
+
+/*
+ * About the exception table:
+ *
+ * - insn is a 32-bit pc-relative offset from the faulting insn.
+ * - nextinsn is a 16-bit offset off of the faulting instruction
+ *   (not off of the *next* instruction as branches are).
+ * - errreg is the register in which to place -EFAULT.
+ * - valreg is the final target register for the load sequence
+ *   and will be zeroed.
+ *
+ * Either errreg or valreg may be $31, in which case nothing happens.
+ *
+ * The exception fixup information "just so happens" to be arranged
+ * as in a MEM format instruction.  This lets us emit our three
+ * values like so:
+ *
+ *      lda valreg, nextinsn(errreg)
+ *
+ */
+
+struct exception_table_entry
+{
+	signed int insn;
+	union exception_fixup {
+		unsigned unit;
+		struct {
+			signed int nextinsn : 16;
+			unsigned int errreg : 5;
+			unsigned int valreg : 5;
+		} bits;
+	} fixup;
+};
+
+/* Returns the new pc */
+#define fixup_exception(map_reg, _fixup, pc)			\
+({								\
+	if ((_fixup)->fixup.bits.valreg != 31)			\
+		map_reg((_fixup)->fixup.bits.valreg) = 0;	\
+	if ((_fixup)->fixup.bits.errreg != 31)			\
+		map_reg((_fixup)->fixup.bits.errreg) = -EFAULT;	\
+	(pc) + (_fixup)->fixup.bits.nextinsn;			\
+})
+
+#define ARCH_HAS_RELATIVE_EXTABLE
+
+#define swap_ex_entry_fixup(a, b, tmp, delta)			\
+	do {							\
+		(a)->fixup.unit = (b)->fixup.unit;		\
+		(b)->fixup.unit = (tmp).fixup.unit;		\
+	} while (0)
+
+#endif

arch/alpha/include/asm/floppy.h

@@ -0,0 +1,113 @@
+/*
+ * Architecture specific parts of the Floppy driver
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995
+ */
+#ifndef __ASM_ALPHA_FLOPPY_H
+#define __ASM_ALPHA_FLOPPY_H
+
+
+#define fd_inb(base, reg)		inb_p((base) + (reg))
+#define fd_outb(value, base, reg)	outb_p(value, (base) + (reg))
+
+#define fd_enable_dma()         enable_dma(FLOPPY_DMA)
+#define fd_disable_dma()        disable_dma(FLOPPY_DMA)
+#define fd_request_dma()        request_dma(FLOPPY_DMA,"floppy")
+#define fd_free_dma()           free_dma(FLOPPY_DMA)
+#define fd_clear_dma_ff()       clear_dma_ff(FLOPPY_DMA)
+#define fd_set_dma_mode(mode)   set_dma_mode(FLOPPY_DMA,mode)
+#define fd_set_dma_addr(addr)   set_dma_addr(FLOPPY_DMA,virt_to_bus(addr))
+#define fd_set_dma_count(count) set_dma_count(FLOPPY_DMA,count)
+#define fd_enable_irq()         enable_irq(FLOPPY_IRQ)
+#define fd_disable_irq()        disable_irq(FLOPPY_IRQ)
+#define fd_request_irq()        request_irq(FLOPPY_IRQ, floppy_interrupt,\
+					    0, "floppy", NULL)
+#define fd_free_irq()           free_irq(FLOPPY_IRQ, NULL)
+
+#ifdef CONFIG_PCI
+
+#include <linux/pci.h>
+
+#define fd_dma_setup(addr,size,mode,io) alpha_fd_dma_setup(addr,size,mode,io)
+
+static __inline__ int 
+alpha_fd_dma_setup(char *addr, unsigned long size, int mode, int io)
+{
+	static unsigned long prev_size;
+	static dma_addr_t bus_addr = 0;
+	static char *prev_addr;
+	static int prev_dir;
+	int dir;
+
+	dir = (mode != DMA_MODE_READ) ? PCI_DMA_FROMDEVICE : PCI_DMA_TODEVICE;
+
+	if (bus_addr 
+	    && (addr != prev_addr || size != prev_size || dir != prev_dir)) {
+		/* different from last time -- unmap prev */
+		pci_unmap_single(isa_bridge, bus_addr, prev_size, prev_dir);
+		bus_addr = 0;
+	}
+
+	if (!bus_addr)	/* need to map it */
+		bus_addr = pci_map_single(isa_bridge, addr, size, dir);
+
+	/* remember this one as prev */
+	prev_addr = addr;
+	prev_size = size;
+	prev_dir = dir;
+
+	fd_clear_dma_ff();
+	fd_set_dma_mode(mode);
+	set_dma_addr(FLOPPY_DMA, bus_addr);
+	fd_set_dma_count(size);
+	virtual_dma_port = io;
+	fd_enable_dma();
+
+	return 0;
+}
+
+#endif /* CONFIG_PCI */
+
+__inline__ void virtual_dma_init(void)
+{
+	/* Nothing to do on an Alpha */
+}
+
+static int FDC1 = 0x3f0;
+static int FDC2 = -1;
+
+/*
+ * Again, the CMOS information doesn't work on the alpha..
+ */
+#define FLOPPY0_TYPE 6
+#define FLOPPY1_TYPE 0
+
+#define N_FDC 2
+#define N_DRIVE 8
+
+/*
+ * Most Alphas have no problems with floppy DMA crossing 64k borders,
+ * except for certain ones, like XL and RUFFIAN.
+ *
+ * However, the test is simple and fast, and this *is* floppy, after all,
+ * so we do it for all platforms, just to make sure.
+ *
+ * This is advantageous in other circumstances as well, as in moving
+ * about the PCI DMA windows and forcing the floppy to start doing
+ * scatter-gather when it never had before, and there *is* a problem
+ * on that platform... ;-}
+ */
+
+static inline unsigned long CROSS_64KB(void *a, unsigned long s)
+{
+	unsigned long p = (unsigned long)a;
+	return ((p + s - 1) ^ p) & ~0xffffUL;
+}
+
+#define EXTRA_FLOPPY_PARAMS
+
+#endif /* __ASM_ALPHA_FLOPPY_H */

arch/alpha/include/asm/fpu.h

@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_ALPHA_FPU_H
+#define __ASM_ALPHA_FPU_H
+
+#include <asm/special_insns.h>
+#include <uapi/asm/fpu.h>
+
+/* The following two functions don't need trapb/excb instructions
+   around the mf_fpcr/mt_fpcr instructions because (a) the kernel
+   never generates arithmetic faults and (b) call_pal instructions
+   are implied trap barriers.  */
+
+static inline unsigned long
+rdfpcr(void)
+{
+	unsigned long tmp, ret;
+
+#if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67)
+	__asm__ __volatile__ (
+		"ftoit $f0,%0\n\t"
+		"mf_fpcr $f0\n\t"
+		"ftoit $f0,%1\n\t"
+		"itoft %0,$f0"
+		: "=r"(tmp), "=r"(ret));
+#else
+	__asm__ __volatile__ (
+		"stt $f0,%0\n\t"
+		"mf_fpcr $f0\n\t"
+		"stt $f0,%1\n\t"
+		"ldt $f0,%0"
+		: "=m"(tmp), "=m"(ret));
+#endif
+
+	return ret;
+}
+
+static inline void
+wrfpcr(unsigned long val)
+{
+	unsigned long tmp;
+
+#if defined(CONFIG_ALPHA_EV6) || defined(CONFIG_ALPHA_EV67)
+	__asm__ __volatile__ (
+		"ftoit $f0,%0\n\t"
+		"itoft %1,$f0\n\t"
+		"mt_fpcr $f0\n\t"
+		"itoft %0,$f0"
+		: "=&r"(tmp) : "r"(val));
+#else
+	__asm__ __volatile__ (
+		"stt $f0,%0\n\t"
+		"ldt $f0,%1\n\t"
+		"mt_fpcr $f0\n\t"
+		"ldt $f0,%0"
+		: "=m"(tmp) : "m"(val));
+#endif
+}
+
+static inline unsigned long
+swcr_update_status(unsigned long swcr, unsigned long fpcr)
+{
+	/* EV6 implements most of the bits in hardware.  Collect
+	   the acrued exception bits from the real fpcr.  */
+	if (implver() == IMPLVER_EV6) {
+		swcr &= ~IEEE_STATUS_MASK;
+		swcr |= (fpcr >> 35) & IEEE_STATUS_MASK;
+	}
+	return swcr;
+}
+
+extern unsigned long alpha_read_fp_reg (unsigned long reg);
+extern void alpha_write_fp_reg (unsigned long reg, unsigned long val);
+extern unsigned long alpha_read_fp_reg_s (unsigned long reg);
+extern void alpha_write_fp_reg_s (unsigned long reg, unsigned long val);
+
+#endif /* __ASM_ALPHA_FPU_H */

arch/alpha/include/asm/ftrace.h

@@ -0,0 +1 @@
+/* empty */

arch/alpha/include/asm/futex.h

@@ -0,0 +1,95 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ALPHA_FUTEX_H
+#define _ASM_ALPHA_FUTEX_H
+
+#ifdef __KERNEL__
+
+#include <linux/futex.h>
+#include <linux/uaccess.h>
+#include <asm/errno.h>
+#include <asm/barrier.h>
+
+#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg)	\
+	__asm__ __volatile__(					\
+		__ASM_SMP_MB					\
+	"1:	ldl_l	%0,0(%2)\n"				\
+		insn						\
+	"2:	stl_c	%1,0(%2)\n"				\
+	"	beq	%1,4f\n"				\
+	"	mov	$31,%1\n"				\
+	"3:	.subsection 2\n"				\
+	"4:	br	1b\n"					\
+	"	.previous\n"					\
+	EXC(1b,3b,$31,%1)					\
+	EXC(2b,3b,$31,%1)					\
+	:	"=&r" (oldval), "=&r"(ret)			\
+	:	"r" (uaddr), "r"(oparg)				\
+	:	"memory")
+
+static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+		u32 __user *uaddr)
+{
+	int oldval = 0, ret;
+
+	if (!access_ok(uaddr, sizeof(u32)))
+		return -EFAULT;
+
+	switch (op) {
+	case FUTEX_OP_SET:
+		__futex_atomic_op("mov %3,%1\n", ret, oldval, uaddr, oparg);
+		break;
+	case FUTEX_OP_ADD:
+		__futex_atomic_op("addl %0,%3,%1\n", ret, oldval, uaddr, oparg);
+		break;
+	case FUTEX_OP_OR:
+		__futex_atomic_op("or %0,%3,%1\n", ret, oldval, uaddr, oparg);
+		break;
+	case FUTEX_OP_ANDN:
+		__futex_atomic_op("andnot %0,%3,%1\n", ret, oldval, uaddr, oparg);
+		break;
+	case FUTEX_OP_XOR:
+		__futex_atomic_op("xor %0,%3,%1\n", ret, oldval, uaddr, oparg);
+		break;
+	default:
+		ret = -ENOSYS;
+	}
+
+	if (!ret)
+		*oval = oldval;
+
+	return ret;
+}
+
+static inline int
+futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
+			      u32 oldval, u32 newval)
+{
+	int ret = 0, cmp;
+	u32 prev;
+
+	if (!access_ok(uaddr, sizeof(u32)))
+		return -EFAULT;
+
+	__asm__ __volatile__ (
+		__ASM_SMP_MB
+	"1:	ldl_l	%1,0(%3)\n"
+	"	cmpeq	%1,%4,%2\n"
+	"	beq	%2,3f\n"
+	"	mov	%5,%2\n"
+	"2:	stl_c	%2,0(%3)\n"
+	"	beq	%2,4f\n"
+	"3:	.subsection 2\n"
+	"4:	br	1b\n"
+	"	.previous\n"
+	EXC(1b,3b,$31,%0)
+	EXC(2b,3b,$31,%0)
+	:	"+r"(ret), "=&r"(prev), "=&r"(cmp)
+	:	"r"(uaddr), "r"((long)(int)oldval), "r"(newval)
+	:	"memory");
+
+	*uval = prev;
+	return ret;
+}
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_ALPHA_FUTEX_H */

arch/alpha/include/asm/gct.h

@@ -0,0 +1,59 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_GCT_H
+#define __ALPHA_GCT_H
+
+typedef u64 gct_id;
+typedef u64 gct6_handle;
+
+typedef struct __gct6_node {
+	u8 type;	
+	u8 subtype;
+	u16 size;
+	u32 hd_extension;
+	gct6_handle owner;
+	gct6_handle active_user;
+	gct_id id;
+	u64 flags;
+	u16 rev;
+	u16 change_counter;
+	u16 max_child;
+	u16 reserved1;
+	gct6_handle saved_owner;
+	gct6_handle affinity;
+	gct6_handle parent;
+	gct6_handle next;
+	gct6_handle prev;
+	gct6_handle child;
+	u64 fw_flags;
+	u64 os_usage;
+	u64 fru_id;
+	u32 checksum;
+	u32 magic;	/* 'GLXY' */
+} gct6_node;
+
+typedef struct {
+	u8 type;	
+	u8 subtype;
+	void (*callout)(gct6_node *);
+} gct6_search_struct;
+
+#define GCT_NODE_MAGIC	  0x59584c47	/* 'GLXY' */
+
+/* 
+ * node types 
+ */
+#define GCT_TYPE_HOSE			0x0E
+
+/*
+ * node subtypes
+ */
+#define GCT_SUBTYPE_IO_PORT_MODULE	0x2C
+
+#define GCT_NODE_PTR(off) ((gct6_node *)((char *)hwrpb + 		\
+					 hwrpb->frut_offset + 		\
+					 (gct6_handle)(off)))		\
+
+int gct6_find_nodes(gct6_node *, gct6_search_struct *);
+
+#endif /* __ALPHA_GCT_H */
+

arch/alpha/include/asm/hardirq.h

@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_HARDIRQ_H
+#define _ALPHA_HARDIRQ_H
+
+void ack_bad_irq(unsigned int irq);
+#define ack_bad_irq ack_bad_irq
+
+#include <asm-generic/hardirq.h>
+
+#endif /* _ALPHA_HARDIRQ_H */

arch/alpha/include/asm/hw_irq.h

@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_HW_IRQ_H
+#define _ALPHA_HW_IRQ_H
+
+
+extern volatile unsigned long irq_err_count;
+DECLARE_PER_CPU(unsigned long, irq_pmi_count);
+
+#ifdef CONFIG_ALPHA_GENERIC
+#define ACTUAL_NR_IRQS	alpha_mv.nr_irqs
+#else
+#define ACTUAL_NR_IRQS	NR_IRQS
+#endif
+
+#endif

arch/alpha/include/asm/hwrpb.h

@@ -0,0 +1,221 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_HWRPB_H
+#define __ALPHA_HWRPB_H
+
+#define INIT_HWRPB ((struct hwrpb_struct *) 0x10000000)
+
+/*
+ * DEC processor types for Alpha systems.  Found in HWRPB.
+ * These values are architected.
+ */
+
+#define EV3_CPU                 1       /* EV3                  */
+#define EV4_CPU                 2       /* EV4 (21064)          */
+#define LCA4_CPU                4       /* LCA4 (21066/21068)   */
+#define EV5_CPU                 5       /* EV5 (21164)          */
+#define EV45_CPU                6       /* EV4.5 (21064/xxx)    */
+#define EV56_CPU		7	/* EV5.6 (21164)	*/
+#define EV6_CPU			8	/* EV6 (21264)		*/
+#define PCA56_CPU		9	/* PCA56 (21164PC)	*/
+#define PCA57_CPU		10	/* PCA57 (notyet)	*/
+#define EV67_CPU		11	/* EV67 (21264A)	*/
+#define EV68CB_CPU		12	/* EV68CB (21264C)	*/
+#define EV68AL_CPU		13	/* EV68AL (21264B)	*/
+#define EV68CX_CPU		14	/* EV68CX (21264D)	*/
+#define EV7_CPU			15	/* EV7 (21364)		*/
+#define EV79_CPU		16	/* EV79 (21364??)	*/
+#define EV69_CPU		17	/* EV69 (21264/EV69A)	*/
+
+/*
+ * DEC system types for Alpha systems.  Found in HWRPB.
+ * These values are architected.
+ */
+
+#define ST_ADU			  1	/* Alpha ADU systype	*/
+#define ST_DEC_4000		  2	/* Cobra systype	*/
+#define ST_DEC_7000		  3	/* Ruby systype		*/
+#define ST_DEC_3000_500		  4	/* Flamingo systype	*/
+#define ST_DEC_2000_300		  6	/* Jensen systype	*/
+#define ST_DEC_3000_300		  7	/* Pelican systype	*/
+#define ST_DEC_2100_A500	  9	/* Sable systype	*/
+#define ST_DEC_AXPVME_64	 10	/* AXPvme system type	*/
+#define ST_DEC_AXPPCI_33	 11	/* NoName system type	*/
+#define ST_DEC_TLASER		 12	/* Turbolaser systype	*/
+#define ST_DEC_2100_A50		 13	/* Avanti systype	*/
+#define ST_DEC_MUSTANG		 14	/* Mustang systype	*/
+#define ST_DEC_ALCOR		 15	/* Alcor (EV5) systype	*/
+#define ST_DEC_1000		 17	/* Mikasa systype	*/
+#define ST_DEC_EB64		 18	/* EB64 systype		*/
+#define ST_DEC_EB66		 19	/* EB66 systype		*/
+#define ST_DEC_EB64P		 20	/* EB64+ systype	*/
+#define ST_DEC_BURNS		 21	/* laptop systype	*/
+#define ST_DEC_RAWHIDE		 22	/* Rawhide systype	*/
+#define ST_DEC_K2		 23	/* K2 systype		*/
+#define ST_DEC_LYNX		 24	/* Lynx systype		*/
+#define ST_DEC_XL		 25	/* Alpha XL systype	*/
+#define ST_DEC_EB164		 26	/* EB164 systype	*/
+#define ST_DEC_NORITAKE		 27	/* Noritake systype	*/
+#define ST_DEC_CORTEX		 28	/* Cortex systype	*/
+#define ST_DEC_MIATA		 30	/* Miata systype        */
+#define ST_DEC_XXM		 31	/* XXM systype		*/
+#define ST_DEC_TAKARA		 32	/* Takara systype	*/
+#define ST_DEC_YUKON		 33	/* Yukon systype	*/
+#define ST_DEC_TSUNAMI		 34	/* Tsunami systype	*/
+#define ST_DEC_WILDFIRE		 35	/* Wildfire systype	*/
+#define ST_DEC_CUSCO		 36	/* CUSCO systype	*/
+#define ST_DEC_EIGER		 37	/* Eiger systype	*/
+#define ST_DEC_TITAN		 38	/* Titan systype	*/
+#define ST_DEC_MARVEL		 39	/* Marvel systype	*/
+
+/* UNOFFICIAL!!! */
+#define ST_UNOFFICIAL_BIAS	100
+#define ST_DTI_RUFFIAN		101	/* RUFFIAN systype	*/
+
+/* Alpha Processor, Inc. systems */
+#define ST_API_BIAS		200
+#define ST_API_NAUTILUS		201	/* UP1000 systype	*/
+
+struct pcb_struct {
+	unsigned long ksp;
+	unsigned long usp;
+	unsigned long ptbr;
+	unsigned int pcc;
+	unsigned int asn;
+	unsigned long unique;
+	unsigned long flags;
+	unsigned long res1, res2;
+};
+
+struct percpu_struct {
+	unsigned long hwpcb[16];
+	unsigned long flags;
+	unsigned long pal_mem_size;
+	unsigned long pal_scratch_size;
+	unsigned long pal_mem_pa;
+	unsigned long pal_scratch_pa;
+	unsigned long pal_revision;
+	unsigned long type;
+	unsigned long variation;
+	unsigned long revision;
+	unsigned long serial_no[2];
+	unsigned long logout_area_pa;
+	unsigned long logout_area_len;
+	unsigned long halt_PCBB;
+	unsigned long halt_PC;
+	unsigned long halt_PS;
+	unsigned long halt_arg;
+	unsigned long halt_ra;
+	unsigned long halt_pv;
+	unsigned long halt_reason;
+	unsigned long res;
+	unsigned long ipc_buffer[21];
+	unsigned long palcode_avail[16];
+	unsigned long compatibility;
+	unsigned long console_data_log_pa;
+	unsigned long console_data_log_length;
+	unsigned long bcache_info;
+};
+
+struct procdesc_struct {
+	unsigned long weird_vms_stuff;
+	unsigned long address;
+};
+
+struct vf_map_struct {
+	unsigned long va;
+	unsigned long pa;
+	unsigned long count;
+};
+
+struct crb_struct {
+	struct procdesc_struct * dispatch_va;
+	struct procdesc_struct * dispatch_pa;
+	struct procdesc_struct * fixup_va;
+	struct procdesc_struct * fixup_pa;
+	/* virtual->physical map */
+	unsigned long map_entries;
+	unsigned long map_pages;
+	struct vf_map_struct map[1];
+};
+
+struct memclust_struct {
+	unsigned long start_pfn;
+	unsigned long numpages;
+	unsigned long numtested;
+	unsigned long bitmap_va;
+	unsigned long bitmap_pa;
+	unsigned long bitmap_chksum;
+	unsigned long usage;
+};
+
+struct memdesc_struct {
+	unsigned long chksum;
+	unsigned long optional_pa;
+	unsigned long numclusters;
+	struct memclust_struct cluster[0];
+};
+
+struct dsr_struct {
+	long smm;			/* SMM nubber used by LMF       */
+	unsigned long  lurt_off;	/* offset to LURT table         */
+	unsigned long  sysname_off;	/* offset to sysname char count */
+};
+
+struct hwrpb_struct {
+	unsigned long phys_addr;	/* check: physical address of the hwrpb */
+	unsigned long id;		/* check: "HWRPB\0\0\0" */
+	unsigned long revision;	
+	unsigned long size;		/* size of hwrpb */
+	unsigned long cpuid;
+	unsigned long pagesize;		/* 8192, I hope */
+	unsigned long pa_bits;		/* number of physical address bits */
+	unsigned long max_asn;
+	unsigned char ssn[16];		/* system serial number: big bother is watching */
+	unsigned long sys_type;
+	unsigned long sys_variation;
+	unsigned long sys_revision;
+	unsigned long intr_freq;	/* interval clock frequency * 4096 */
+	unsigned long cycle_freq;	/* cycle counter frequency */
+	unsigned long vptb;		/* Virtual Page Table Base address */
+	unsigned long res1;
+	unsigned long tbhb_offset;	/* Translation Buffer Hint Block */
+	unsigned long nr_processors;
+	unsigned long processor_size;
+	unsigned long processor_offset;
+	unsigned long ctb_nr;
+	unsigned long ctb_size;		/* console terminal block size */
+	unsigned long ctbt_offset;	/* console terminal block table offset */
+	unsigned long crb_offset;	/* console callback routine block */
+	unsigned long mddt_offset;	/* memory data descriptor table */
+	unsigned long cdb_offset;	/* configuration data block (or NULL) */
+	unsigned long frut_offset;	/* FRU table (or NULL) */
+	void (*save_terminal)(unsigned long);
+	unsigned long save_terminal_data;
+	void (*restore_terminal)(unsigned long);
+	unsigned long restore_terminal_data;
+	void (*CPU_restart)(unsigned long);
+	unsigned long CPU_restart_data;
+	unsigned long res2;
+	unsigned long res3;
+	unsigned long chksum;
+	unsigned long rxrdy;
+	unsigned long txrdy;
+	unsigned long dsr_offset;	/* "Dynamic System Recognition Data Block Table" */
+};
+
+#ifdef __KERNEL__
+
+extern struct hwrpb_struct *hwrpb;
+
+static inline void
+hwrpb_update_checksum(struct hwrpb_struct *h)
+{
+	unsigned long sum = 0, *l;
+        for (l = (unsigned long *) h; l < (unsigned long *) &h->chksum; ++l)
+                sum += *l;
+        h->chksum = sum;
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_HWRPB_H */

arch/alpha/include/asm/io.h

@@ -0,0 +1,607 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_IO_H
+#define __ALPHA_IO_H
+
+#ifdef __KERNEL__
+
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <asm/compiler.h>
+#include <asm/machvec.h>
+#include <asm/hwrpb.h>
+
+/* The generic header contains only prototypes.  Including it ensures that
+   the implementation we have here matches that interface.  */
+#include <asm-generic/iomap.h>
+
+/* We don't use IO slowdowns on the Alpha, but.. */
+#define __SLOW_DOWN_IO	do { } while (0)
+#define SLOW_DOWN_IO	do { } while (0)
+
+/*
+ * Virtual -> physical identity mapping starts at this offset
+ */
+#ifdef USE_48_BIT_KSEG
+#define IDENT_ADDR     0xffff800000000000UL
+#else
+#define IDENT_ADDR     0xfffffc0000000000UL
+#endif
+
+/*
+ * We try to avoid hae updates (thus the cache), but when we
+ * do need to update the hae, we need to do it atomically, so
+ * that any interrupts wouldn't get confused with the hae
+ * register not being up-to-date with respect to the hardware
+ * value.
+ */
+extern inline void __set_hae(unsigned long new_hae)
+{
+	unsigned long flags = swpipl(IPL_MAX);
+
+	barrier();
+
+	alpha_mv.hae_cache = new_hae;
+	*alpha_mv.hae_register = new_hae;
+	mb();
+	/* Re-read to make sure it was written.  */
+	new_hae = *alpha_mv.hae_register;
+
+	setipl(flags);
+	barrier();
+}
+
+extern inline void set_hae(unsigned long new_hae)
+{
+	if (new_hae != alpha_mv.hae_cache)
+		__set_hae(new_hae);
+}
+
+/*
+ * Change virtual addresses to physical addresses and vv.
+ */
+#ifdef USE_48_BIT_KSEG
+static inline unsigned long virt_to_phys(volatile void *address)
+{
+	return (unsigned long)address - IDENT_ADDR;
+}
+
+static inline void * phys_to_virt(unsigned long address)
+{
+	return (void *) (address + IDENT_ADDR);
+}
+#else
+static inline unsigned long virt_to_phys(volatile void *address)
+{
+        unsigned long phys = (unsigned long)address;
+
+	/* Sign-extend from bit 41.  */
+	phys <<= (64 - 41);
+	phys = (long)phys >> (64 - 41);
+
+	/* Crop to the physical address width of the processor.  */
+        phys &= (1ul << hwrpb->pa_bits) - 1;
+
+        return phys;
+}
+
+static inline void * phys_to_virt(unsigned long address)
+{
+        return (void *)(IDENT_ADDR + (address & ((1ul << 41) - 1)));
+}
+#endif
+
+#define page_to_phys(page)	page_to_pa(page)
+
+/* Maximum PIO space address supported?  */
+#define IO_SPACE_LIMIT 0xffff
+
+/*
+ * Change addresses as seen by the kernel (virtual) to addresses as
+ * seen by a device (bus), and vice versa.
+ *
+ * Note that this only works for a limited range of kernel addresses,
+ * and very well may not span all memory.  Consider this interface 
+ * deprecated in favour of the DMA-mapping API.
+ */
+extern unsigned long __direct_map_base;
+extern unsigned long __direct_map_size;
+
+static inline unsigned long __deprecated virt_to_bus(volatile void *address)
+{
+	unsigned long phys = virt_to_phys(address);
+	unsigned long bus = phys + __direct_map_base;
+	return phys <= __direct_map_size ? bus : 0;
+}
+#define isa_virt_to_bus virt_to_bus
+
+static inline void * __deprecated bus_to_virt(unsigned long address)
+{
+	void *virt;
+
+	/* This check is a sanity check but also ensures that bus address 0
+	   maps to virtual address 0 which is useful to detect null pointers
+	   (the NCR driver is much simpler if NULL pointers are preserved).  */
+	address -= __direct_map_base;
+	virt = phys_to_virt(address);
+	return (long)address <= 0 ? NULL : virt;
+}
+#define isa_bus_to_virt bus_to_virt
+
+/*
+ * There are different chipsets to interface the Alpha CPUs to the world.
+ */
+
+#define IO_CONCAT(a,b)	_IO_CONCAT(a,b)
+#define _IO_CONCAT(a,b)	a ## _ ## b
+
+#ifdef CONFIG_ALPHA_GENERIC
+
+/* In a generic kernel, we always go through the machine vector.  */
+
+#define REMAP1(TYPE, NAME, QUAL)					\
+static inline TYPE generic_##NAME(QUAL void __iomem *addr)		\
+{									\
+	return alpha_mv.mv_##NAME(addr);				\
+}
+
+#define REMAP2(TYPE, NAME, QUAL)					\
+static inline void generic_##NAME(TYPE b, QUAL void __iomem *addr)	\
+{									\
+	alpha_mv.mv_##NAME(b, addr);					\
+}
+
+REMAP1(unsigned int, ioread8, const)
+REMAP1(unsigned int, ioread16, const)
+REMAP1(unsigned int, ioread32, const)
+REMAP1(u8, readb, const volatile)
+REMAP1(u16, readw, const volatile)
+REMAP1(u32, readl, const volatile)
+REMAP1(u64, readq, const volatile)
+
+REMAP2(u8, iowrite8, /**/)
+REMAP2(u16, iowrite16, /**/)
+REMAP2(u32, iowrite32, /**/)
+REMAP2(u8, writeb, volatile)
+REMAP2(u16, writew, volatile)
+REMAP2(u32, writel, volatile)
+REMAP2(u64, writeq, volatile)
+
+#undef REMAP1
+#undef REMAP2
+
+extern inline void __iomem *generic_ioportmap(unsigned long a)
+{
+	return alpha_mv.mv_ioportmap(a);
+}
+
+static inline void __iomem *generic_ioremap(unsigned long a, unsigned long s)
+{
+	return alpha_mv.mv_ioremap(a, s);
+}
+
+static inline void generic_iounmap(volatile void __iomem *a)
+{
+	return alpha_mv.mv_iounmap(a);
+}
+
+static inline int generic_is_ioaddr(unsigned long a)
+{
+	return alpha_mv.mv_is_ioaddr(a);
+}
+
+static inline int generic_is_mmio(const volatile void __iomem *a)
+{
+	return alpha_mv.mv_is_mmio(a);
+}
+
+#define __IO_PREFIX		generic
+#define generic_trivial_rw_bw	0
+#define generic_trivial_rw_lq	0
+#define generic_trivial_io_bw	0
+#define generic_trivial_io_lq	0
+#define generic_trivial_iounmap	0
+
+#else
+
+#if defined(CONFIG_ALPHA_APECS)
+# include <asm/core_apecs.h>
+#elif defined(CONFIG_ALPHA_CIA)
+# include <asm/core_cia.h>
+#elif defined(CONFIG_ALPHA_IRONGATE)
+# include <asm/core_irongate.h>
+#elif defined(CONFIG_ALPHA_JENSEN)
+# include <asm/jensen.h>
+#elif defined(CONFIG_ALPHA_LCA)
+# include <asm/core_lca.h>
+#elif defined(CONFIG_ALPHA_MARVEL)
+# include <asm/core_marvel.h>
+#elif defined(CONFIG_ALPHA_MCPCIA)
+# include <asm/core_mcpcia.h>
+#elif defined(CONFIG_ALPHA_POLARIS)
+# include <asm/core_polaris.h>
+#elif defined(CONFIG_ALPHA_T2)
+# include <asm/core_t2.h>
+#elif defined(CONFIG_ALPHA_TSUNAMI)
+# include <asm/core_tsunami.h>
+#elif defined(CONFIG_ALPHA_TITAN)
+# include <asm/core_titan.h>
+#elif defined(CONFIG_ALPHA_WILDFIRE)
+# include <asm/core_wildfire.h>
+#else
+#error "What system is this?"
+#endif
+
+#endif /* GENERIC */
+
+/*
+ * We always have external versions of these routines.
+ */
+extern u8		inb(unsigned long port);
+extern u16		inw(unsigned long port);
+extern u32		inl(unsigned long port);
+extern void		outb(u8 b, unsigned long port);
+extern void		outw(u16 b, unsigned long port);
+extern void		outl(u32 b, unsigned long port);
+
+extern u8		readb(const volatile void __iomem *addr);
+extern u16		readw(const volatile void __iomem *addr);
+extern u32		readl(const volatile void __iomem *addr);
+extern u64		readq(const volatile void __iomem *addr);
+extern void		writeb(u8 b, volatile void __iomem *addr);
+extern void		writew(u16 b, volatile void __iomem *addr);
+extern void		writel(u32 b, volatile void __iomem *addr);
+extern void		writeq(u64 b, volatile void __iomem *addr);
+
+extern u8		__raw_readb(const volatile void __iomem *addr);
+extern u16		__raw_readw(const volatile void __iomem *addr);
+extern u32		__raw_readl(const volatile void __iomem *addr);
+extern u64		__raw_readq(const volatile void __iomem *addr);
+extern void		__raw_writeb(u8 b, volatile void __iomem *addr);
+extern void		__raw_writew(u16 b, volatile void __iomem *addr);
+extern void		__raw_writel(u32 b, volatile void __iomem *addr);
+extern void		__raw_writeq(u64 b, volatile void __iomem *addr);
+
+/*
+ * Mapping from port numbers to __iomem space is pretty easy.
+ */
+
+/* These two have to be extern inline because of the extern prototype from
+   <asm-generic/iomap.h>.  It is not legal to mix "extern" and "static" for
+   the same declaration.  */
+extern inline void __iomem *ioport_map(unsigned long port, unsigned int size)
+{
+	return IO_CONCAT(__IO_PREFIX,ioportmap) (port);
+}
+
+extern inline void ioport_unmap(void __iomem *addr)
+{
+}
+
+static inline void __iomem *ioremap(unsigned long port, unsigned long size)
+{
+	return IO_CONCAT(__IO_PREFIX,ioremap) (port, size);
+}
+
+#define ioremap_wc ioremap
+#define ioremap_uc ioremap
+
+static inline void iounmap(volatile void __iomem *addr)
+{
+	IO_CONCAT(__IO_PREFIX,iounmap)(addr);
+}
+
+static inline int __is_ioaddr(unsigned long addr)
+{
+	return IO_CONCAT(__IO_PREFIX,is_ioaddr)(addr);
+}
+#define __is_ioaddr(a)		__is_ioaddr((unsigned long)(a))
+
+static inline int __is_mmio(const volatile void __iomem *addr)
+{
+	return IO_CONCAT(__IO_PREFIX,is_mmio)(addr);
+}
+
+
+/*
+ * If the actual I/O bits are sufficiently trivial, then expand inline.
+ */
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_bw)
+extern inline unsigned int ioread8(const void __iomem *addr)
+{
+	unsigned int ret;
+	mb();
+	ret = IO_CONCAT(__IO_PREFIX,ioread8)(addr);
+	mb();
+	return ret;
+}
+
+extern inline unsigned int ioread16(const void __iomem *addr)
+{
+	unsigned int ret;
+	mb();
+	ret = IO_CONCAT(__IO_PREFIX,ioread16)(addr);
+	mb();
+	return ret;
+}
+
+extern inline void iowrite8(u8 b, void __iomem *addr)
+{
+	mb();
+	IO_CONCAT(__IO_PREFIX, iowrite8)(b, addr);
+}
+
+extern inline void iowrite16(u16 b, void __iomem *addr)
+{
+	mb();
+	IO_CONCAT(__IO_PREFIX, iowrite16)(b, addr);
+}
+
+extern inline u8 inb(unsigned long port)
+{
+	return ioread8(ioport_map(port, 1));
+}
+
+extern inline u16 inw(unsigned long port)
+{
+	return ioread16(ioport_map(port, 2));
+}
+
+extern inline void outb(u8 b, unsigned long port)
+{
+	iowrite8(b, ioport_map(port, 1));
+}
+
+extern inline void outw(u16 b, unsigned long port)
+{
+	iowrite16(b, ioport_map(port, 2));
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_lq)
+extern inline unsigned int ioread32(const void __iomem *addr)
+{
+	unsigned int ret;
+	mb();
+	ret = IO_CONCAT(__IO_PREFIX,ioread32)(addr);
+	mb();
+	return ret;
+}
+
+extern inline void iowrite32(u32 b, void __iomem *addr)
+{
+	mb();
+	IO_CONCAT(__IO_PREFIX, iowrite32)(b, addr);
+}
+
+extern inline u32 inl(unsigned long port)
+{
+	return ioread32(ioport_map(port, 4));
+}
+
+extern inline void outl(u32 b, unsigned long port)
+{
+	iowrite32(b, ioport_map(port, 4));
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_rw_bw) == 1
+extern inline u8 __raw_readb(const volatile void __iomem *addr)
+{
+	return IO_CONCAT(__IO_PREFIX,readb)(addr);
+}
+
+extern inline u16 __raw_readw(const volatile void __iomem *addr)
+{
+	return IO_CONCAT(__IO_PREFIX,readw)(addr);
+}
+
+extern inline void __raw_writeb(u8 b, volatile void __iomem *addr)
+{
+	IO_CONCAT(__IO_PREFIX,writeb)(b, addr);
+}
+
+extern inline void __raw_writew(u16 b, volatile void __iomem *addr)
+{
+	IO_CONCAT(__IO_PREFIX,writew)(b, addr);
+}
+
+extern inline u8 readb(const volatile void __iomem *addr)
+{
+	u8 ret;
+	mb();
+	ret = __raw_readb(addr);
+	mb();
+	return ret;
+}
+
+extern inline u16 readw(const volatile void __iomem *addr)
+{
+	u16 ret;
+	mb();
+	ret = __raw_readw(addr);
+	mb();
+	return ret;
+}
+
+extern inline void writeb(u8 b, volatile void __iomem *addr)
+{
+	mb();
+	__raw_writeb(b, addr);
+}
+
+extern inline void writew(u16 b, volatile void __iomem *addr)
+{
+	mb();
+	__raw_writew(b, addr);
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_rw_lq) == 1
+extern inline u32 __raw_readl(const volatile void __iomem *addr)
+{
+	return IO_CONCAT(__IO_PREFIX,readl)(addr);
+}
+
+extern inline u64 __raw_readq(const volatile void __iomem *addr)
+{
+	return IO_CONCAT(__IO_PREFIX,readq)(addr);
+}
+
+extern inline void __raw_writel(u32 b, volatile void __iomem *addr)
+{
+	IO_CONCAT(__IO_PREFIX,writel)(b, addr);
+}
+
+extern inline void __raw_writeq(u64 b, volatile void __iomem *addr)
+{
+	IO_CONCAT(__IO_PREFIX,writeq)(b, addr);
+}
+
+extern inline u32 readl(const volatile void __iomem *addr)
+{
+	u32 ret;
+	mb();
+	ret = __raw_readl(addr);
+	mb();
+	return ret;
+}
+
+extern inline u64 readq(const volatile void __iomem *addr)
+{
+	u64 ret;
+	mb();
+	ret = __raw_readq(addr);
+	mb();
+	return ret;
+}
+
+extern inline void writel(u32 b, volatile void __iomem *addr)
+{
+	mb();
+	__raw_writel(b, addr);
+}
+
+extern inline void writeq(u64 b, volatile void __iomem *addr)
+{
+	mb();
+	__raw_writeq(b, addr);
+}
+#endif
+
+#define ioread16be(p) swab16(ioread16(p))
+#define ioread32be(p) swab32(ioread32(p))
+#define iowrite16be(v,p) iowrite16(swab16(v), (p))
+#define iowrite32be(v,p) iowrite32(swab32(v), (p))
+
+#define inb_p		inb
+#define inw_p		inw
+#define inl_p		inl
+#define outb_p		outb
+#define outw_p		outw
+#define outl_p		outl
+
+extern u8 readb_relaxed(const volatile void __iomem *addr);
+extern u16 readw_relaxed(const volatile void __iomem *addr);
+extern u32 readl_relaxed(const volatile void __iomem *addr);
+extern u64 readq_relaxed(const volatile void __iomem *addr);
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_bw)
+extern inline u8 readb_relaxed(const volatile void __iomem *addr)
+{
+	mb();
+	return __raw_readb(addr);
+}
+
+extern inline u16 readw_relaxed(const volatile void __iomem *addr)
+{
+	mb();
+	return __raw_readw(addr);
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_lq)
+extern inline u32 readl_relaxed(const volatile void __iomem *addr)
+{
+	mb();
+	return __raw_readl(addr);
+}
+
+extern inline u64 readq_relaxed(const volatile void __iomem *addr)
+{
+	mb();
+	return __raw_readq(addr);
+}
+#endif
+
+#define writeb_relaxed	writeb
+#define writew_relaxed	writew
+#define writel_relaxed	writel
+#define writeq_relaxed	writeq
+
+/*
+ * String version of IO memory access ops:
+ */
+extern void memcpy_fromio(void *, const volatile void __iomem *, long);
+extern void memcpy_toio(volatile void __iomem *, const void *, long);
+extern void _memset_c_io(volatile void __iomem *, unsigned long, long);
+
+static inline void memset_io(volatile void __iomem *addr, u8 c, long len)
+{
+	_memset_c_io(addr, 0x0101010101010101UL * c, len);
+}
+
+#define __HAVE_ARCH_MEMSETW_IO
+static inline void memsetw_io(volatile void __iomem *addr, u16 c, long len)
+{
+	_memset_c_io(addr, 0x0001000100010001UL * c, len);
+}
+
+/*
+ * String versions of in/out ops:
+ */
+extern void insb (unsigned long port, void *dst, unsigned long count);
+extern void insw (unsigned long port, void *dst, unsigned long count);
+extern void insl (unsigned long port, void *dst, unsigned long count);
+extern void outsb (unsigned long port, const void *src, unsigned long count);
+extern void outsw (unsigned long port, const void *src, unsigned long count);
+extern void outsl (unsigned long port, const void *src, unsigned long count);
+
+/*
+ * The Alpha Jensen hardware for some rather strange reason puts
+ * the RTC clock at 0x170 instead of 0x70. Probably due to some
+ * misguided idea about using 0x70 for NMI stuff.
+ *
+ * These defines will override the defaults when doing RTC queries
+ */
+
+#ifdef CONFIG_ALPHA_GENERIC
+# define RTC_PORT(x)	((x) + alpha_mv.rtc_port)
+#else
+# ifdef CONFIG_ALPHA_JENSEN
+#  define RTC_PORT(x)	(0x170+(x))
+# else
+#  define RTC_PORT(x)	(0x70 + (x))
+# endif
+#endif
+#define RTC_ALWAYS_BCD	0
+
+/*
+ * Some mucking forons use if[n]def writeq to check if platform has it.
+ * It's a bloody bad idea and we probably want ARCH_HAS_WRITEQ for them
+ * to play with; for now just use cpp anti-recursion logics and make sure
+ * that damn thing is defined and expands to itself.
+ */
+
+#define writeq writeq
+#define readq readq
+
+/*
+ * Convert a physical pointer to a virtual kernel pointer for /dev/mem
+ * access
+ */
+#define xlate_dev_mem_ptr(p)	__va(p)
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_IO_H */

arch/alpha/include/asm/io_trivial.h

@@ -0,0 +1,132 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Trivial implementations of basic i/o routines.  Assumes that all
+   of the hard work has been done by ioremap and ioportmap, and that
+   access to i/o space is linear.  */
+
+/* This file may be included multiple times.  */
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_bw)
+__EXTERN_INLINE unsigned int
+IO_CONCAT(__IO_PREFIX,ioread8)(const void __iomem *a)
+{
+	return __kernel_ldbu(*(const volatile u8 __force *)a);
+}
+
+__EXTERN_INLINE unsigned int
+IO_CONCAT(__IO_PREFIX,ioread16)(const void __iomem *a)
+{
+	return __kernel_ldwu(*(const volatile u16 __force *)a);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,iowrite8)(u8 b, void __iomem *a)
+{
+	__kernel_stb(b, *(volatile u8 __force *)a);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,iowrite16)(u16 b, void __iomem *a)
+{
+	__kernel_stw(b, *(volatile u16 __force *)a);
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_io_lq)
+__EXTERN_INLINE unsigned int
+IO_CONCAT(__IO_PREFIX,ioread32)(const void __iomem *a)
+{
+	return *(const volatile u32 __force *)a;
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,iowrite32)(u32 b, void __iomem *a)
+{
+	*(volatile u32 __force *)a = b;
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_rw_bw) == 1
+__EXTERN_INLINE u8
+IO_CONCAT(__IO_PREFIX,readb)(const volatile void __iomem *a)
+{
+	return __kernel_ldbu(*(const volatile u8 __force *)a);
+}
+
+__EXTERN_INLINE u16
+IO_CONCAT(__IO_PREFIX,readw)(const volatile void __iomem *a)
+{
+	return __kernel_ldwu(*(const volatile u16 __force *)a);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writeb)(u8 b, volatile void __iomem *a)
+{
+	__kernel_stb(b, *(volatile u8 __force *)a);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writew)(u16 b, volatile void __iomem *a)
+{
+	__kernel_stw(b, *(volatile u16 __force *)a);
+}
+#elif IO_CONCAT(__IO_PREFIX,trivial_rw_bw) == 2
+__EXTERN_INLINE u8
+IO_CONCAT(__IO_PREFIX,readb)(const volatile void __iomem *a)
+{
+	const void __iomem *addr = (const void __iomem *)a;
+	return IO_CONCAT(__IO_PREFIX,ioread8)(addr);
+}
+
+__EXTERN_INLINE u16
+IO_CONCAT(__IO_PREFIX,readw)(const volatile void __iomem *a)
+{
+	const void __iomem *addr = (const void __iomem *)a;
+	return IO_CONCAT(__IO_PREFIX,ioread16)(addr);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writeb)(u8 b, volatile void __iomem *a)
+{
+	void __iomem *addr = (void __iomem *)a;
+	IO_CONCAT(__IO_PREFIX,iowrite8)(b, addr);
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writew)(u16 b, volatile void __iomem *a)
+{
+	void __iomem *addr = (void __iomem *)a;
+	IO_CONCAT(__IO_PREFIX,iowrite16)(b, addr);
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_rw_lq) == 1
+__EXTERN_INLINE u32
+IO_CONCAT(__IO_PREFIX,readl)(const volatile void __iomem *a)
+{
+	return *(const volatile u32 __force *)a;
+}
+
+__EXTERN_INLINE u64
+IO_CONCAT(__IO_PREFIX,readq)(const volatile void __iomem *a)
+{
+	return *(const volatile u64 __force *)a;
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writel)(u32 b, volatile void __iomem *a)
+{
+	*(volatile u32 __force *)a = b;
+}
+
+__EXTERN_INLINE void
+IO_CONCAT(__IO_PREFIX,writeq)(u64 b, volatile void __iomem *a)
+{
+	*(volatile u64 __force *)a = b;
+}
+#endif
+
+#if IO_CONCAT(__IO_PREFIX,trivial_iounmap)
+__EXTERN_INLINE void IO_CONCAT(__IO_PREFIX,iounmap)(volatile void __iomem *a)
+{
+}
+#endif

arch/alpha/include/asm/irq.h

@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_IRQ_H
+#define _ALPHA_IRQ_H
+
+/*
+ *	linux/include/alpha/irq.h
+ *
+ *	(C) 1994 Linus Torvalds
+ */
+
+#include <linux/linkage.h>
+
+#if   defined(CONFIG_ALPHA_GENERIC)
+
+/* Here NR_IRQS is not exact, but rather an upper bound.  This is used
+   many places throughout the kernel to size static arrays.  That's ok,
+   we'll use alpha_mv.nr_irqs when we want the real thing.  */
+
+/* When LEGACY_START_ADDRESS is selected, we leave out:
+     TITAN
+     WILDFIRE
+     MARVEL
+
+   This helps keep the kernel object size reasonable for the majority
+   of machines.
+*/
+
+# if defined(CONFIG_ALPHA_LEGACY_START_ADDRESS)
+#  define NR_IRQS      (128)           /* max is RAWHIDE/TAKARA */
+# else
+#  define NR_IRQS      (32768 + 16)    /* marvel - 32 pids */
+# endif
+
+#elif defined(CONFIG_ALPHA_CABRIOLET) || \
+      defined(CONFIG_ALPHA_EB66P)     || \
+      defined(CONFIG_ALPHA_EB164)     || \
+      defined(CONFIG_ALPHA_PC164)     || \
+      defined(CONFIG_ALPHA_LX164)
+# define NR_IRQS	35
+
+#elif defined(CONFIG_ALPHA_EB66)      || \
+      defined(CONFIG_ALPHA_EB64P)     || \
+      defined(CONFIG_ALPHA_MIKASA)
+# define NR_IRQS	32
+
+#elif defined(CONFIG_ALPHA_ALCOR)     || \
+      defined(CONFIG_ALPHA_MIATA)     || \
+      defined(CONFIG_ALPHA_RUFFIAN)   || \
+      defined(CONFIG_ALPHA_RX164)     || \
+      defined(CONFIG_ALPHA_NORITAKE)
+# define NR_IRQS	48
+
+#elif defined(CONFIG_ALPHA_SABLE)     || \
+      defined(CONFIG_ALPHA_SX164)
+# define NR_IRQS	40
+
+#elif defined(CONFIG_ALPHA_DP264) || \
+      defined(CONFIG_ALPHA_LYNX)  || \
+      defined(CONFIG_ALPHA_SHARK)
+# define NR_IRQS	64
+
+#elif defined(CONFIG_ALPHA_TITAN)
+#define NR_IRQS		80
+
+#elif defined(CONFIG_ALPHA_RAWHIDE) || \
+      defined(CONFIG_ALPHA_TAKARA) || \
+      defined(CONFIG_ALPHA_EIGER)
+# define NR_IRQS	128
+
+#elif defined(CONFIG_ALPHA_WILDFIRE)
+# define NR_IRQS	2048 /* enuff for 8 QBBs */
+
+#elif defined(CONFIG_ALPHA_MARVEL)
+# define NR_IRQS	(32768 + 16) 	/* marvel - 32 pids*/
+
+#else /* everyone else */
+# define NR_IRQS	16
+#endif
+
+static __inline__ int irq_canonicalize(int irq)
+{
+	/*
+	 * XXX is this true for all Alpha's?  The old serial driver
+	 * did it this way for years without any complaints, so....
+	 */
+	return ((irq == 2) ? 9 : irq);
+}
+
+struct pt_regs;
+extern void (*perf_irq)(unsigned long, struct pt_regs *);
+
+#endif /* _ALPHA_IRQ_H */

arch/alpha/include/asm/irq_regs.h

@@ -0,0 +1 @@
+#include <asm-generic/irq_regs.h>

arch/alpha/include/asm/irqflags.h

@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_IRQFLAGS_H
+#define __ALPHA_IRQFLAGS_H
+
+#include <asm/pal.h>
+
+#define IPL_MIN		0
+#define IPL_SW0		1
+#define IPL_SW1		2
+#define IPL_DEV0	3
+#define IPL_DEV1	4
+#define IPL_TIMER	5
+#define IPL_PERF	6
+#define IPL_POWERFAIL	6
+#define IPL_MCHECK	7
+#define IPL_MAX		7
+
+#ifdef CONFIG_ALPHA_BROKEN_IRQ_MASK
+#undef IPL_MIN
+#define IPL_MIN		__min_ipl
+extern int __min_ipl;
+#endif
+
+#define getipl()		(rdps() & 7)
+#define setipl(ipl)		((void) swpipl(ipl))
+
+static inline unsigned long arch_local_save_flags(void)
+{
+	return rdps();
+}
+
+static inline void arch_local_irq_disable(void)
+{
+	setipl(IPL_MAX);
+	barrier();
+}
+
+static inline unsigned long arch_local_irq_save(void)
+{
+	unsigned long flags = swpipl(IPL_MAX);
+	barrier();
+	return flags;
+}
+
+static inline void arch_local_irq_enable(void)
+{
+	barrier();
+	setipl(IPL_MIN);
+}
+
+static inline void arch_local_irq_restore(unsigned long flags)
+{
+	barrier();
+	setipl(flags);
+	barrier();
+}
+
+static inline bool arch_irqs_disabled_flags(unsigned long flags)
+{
+	return flags == IPL_MAX;
+}
+
+static inline bool arch_irqs_disabled(void)
+{
+	return arch_irqs_disabled_flags(getipl());
+}
+
+#endif /* __ALPHA_IRQFLAGS_H */

arch/alpha/include/asm/jensen.h

@@ -0,0 +1,347 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_JENSEN_H
+#define __ALPHA_JENSEN_H
+
+#include <asm/compiler.h>
+
+/*
+ * Defines for the AlphaPC EISA IO and memory address space.
+ */
+
+/*
+ * NOTE! The memory operations do not set any memory barriers, as it's
+ * not needed for cases like a frame buffer that is essentially memory-like.
+ * You need to do them by hand if the operations depend on ordering.
+ *
+ * Similarly, the port IO operations do a "mb" only after a write operation:
+ * if an mb is needed before (as in the case of doing memory mapped IO
+ * first, and then a port IO operation to the same device), it needs to be
+ * done by hand.
+ *
+ * After the above has bitten me 100 times, I'll give up and just do the
+ * mb all the time, but right now I'm hoping this will work out.  Avoiding
+ * mb's may potentially be a noticeable speed improvement, but I can't
+ * honestly say I've tested it.
+ *
+ * Handling interrupts that need to do mb's to synchronize to non-interrupts
+ * is another fun race area.  Don't do it (because if you do, I'll have to
+ * do *everything* with interrupts disabled, ugh).
+ */
+
+/*
+ * EISA Interrupt Acknowledge address
+ */
+#define EISA_INTA		(IDENT_ADDR + 0x100000000UL)
+
+/*
+ * FEPROM addresses
+ */
+#define EISA_FEPROM0		(IDENT_ADDR + 0x180000000UL)
+#define EISA_FEPROM1		(IDENT_ADDR + 0x1A0000000UL)
+
+/*
+ * VL82C106 base address
+ */
+#define EISA_VL82C106		(IDENT_ADDR + 0x1C0000000UL)
+
+/*
+ * EISA "Host Address Extension" address (bits 25-31 of the EISA address)
+ */
+#define EISA_HAE		(IDENT_ADDR + 0x1D0000000UL)
+
+/*
+ * "SYSCTL" register address
+ */
+#define EISA_SYSCTL		(IDENT_ADDR + 0x1E0000000UL)
+
+/*
+ * "spare" register address
+ */
+#define EISA_SPARE		(IDENT_ADDR + 0x1F0000000UL)
+
+/*
+ * EISA memory address offset
+ */
+#define EISA_MEM		(IDENT_ADDR + 0x200000000UL)
+
+/*
+ * EISA IO address offset
+ */
+#define EISA_IO			(IDENT_ADDR + 0x300000000UL)
+
+
+#ifdef __KERNEL__
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __IO_EXTERN_INLINE
+#endif
+
+/*
+ * Handle the "host address register". This needs to be set
+ * to the high 7 bits of the EISA address.  This is also needed
+ * for EISA IO addresses, which are only 16 bits wide (the
+ * hae needs to be set to 0).
+ *
+ * HAE isn't needed for the local IO operations, though.
+ */
+
+#define JENSEN_HAE_ADDRESS	EISA_HAE
+#define JENSEN_HAE_MASK		0x1ffffff
+
+__EXTERN_INLINE void jensen_set_hae(unsigned long addr)
+{
+	/* hae on the Jensen is bits 31:25 shifted right */
+	addr >>= 25;
+	if (addr != alpha_mv.hae_cache)
+		set_hae(addr);
+}
+
+#define vuip	volatile unsigned int *
+
+/*
+ * IO functions
+ *
+ * The "local" functions are those that don't go out to the EISA bus,
+ * but instead act on the VL82C106 chip directly.. This is mainly the
+ * keyboard, RTC,  printer and first two serial lines..
+ *
+ * The local stuff makes for some complications, but it seems to be
+ * gone in the PCI version. I hope I can get DEC suckered^H^H^H^H^H^H^H^H
+ * convinced that I need one of the newer machines.
+ */
+
+__EXTERN_INLINE unsigned int jensen_local_inb(unsigned long addr)
+{
+	return 0xff & *(vuip)((addr << 9) + EISA_VL82C106);
+}
+
+__EXTERN_INLINE void jensen_local_outb(u8 b, unsigned long addr)
+{
+	*(vuip)((addr << 9) + EISA_VL82C106) = b;
+	mb();
+}
+
+__EXTERN_INLINE unsigned int jensen_bus_inb(unsigned long addr)
+{
+	long result;
+
+	jensen_set_hae(0);
+	result = *(volatile int *)((addr << 7) + EISA_IO + 0x00);
+	return __kernel_extbl(result, addr & 3);
+}
+
+__EXTERN_INLINE void jensen_bus_outb(u8 b, unsigned long addr)
+{
+	jensen_set_hae(0);
+	*(vuip)((addr << 7) + EISA_IO + 0x00) = b * 0x01010101;
+	mb();
+}
+
+/*
+ * It seems gcc is not very good at optimizing away logical
+ * operations that result in operations across inline functions.
+ * Which is why this is a macro.
+ */
+
+#define jensen_is_local(addr) ( \
+/* keyboard */	(addr == 0x60 || addr == 0x64) || \
+/* RTC */	(addr == 0x170 || addr == 0x171) || \
+/* mb COM2 */	(addr >= 0x2f8 && addr <= 0x2ff) || \
+/* mb LPT1 */	(addr >= 0x3bc && addr <= 0x3be) || \
+/* mb COM2 */	(addr >= 0x3f8 && addr <= 0x3ff))
+
+__EXTERN_INLINE u8 jensen_inb(unsigned long addr)
+{
+	if (jensen_is_local(addr))
+		return jensen_local_inb(addr);
+	else
+		return jensen_bus_inb(addr);
+}
+
+__EXTERN_INLINE void jensen_outb(u8 b, unsigned long addr)
+{
+	if (jensen_is_local(addr))
+		jensen_local_outb(b, addr);
+	else
+		jensen_bus_outb(b, addr);
+}
+
+__EXTERN_INLINE u16 jensen_inw(unsigned long addr)
+{
+	long result;
+
+	jensen_set_hae(0);
+	result = *(volatile int *) ((addr << 7) + EISA_IO + 0x20);
+	result >>= (addr & 3) * 8;
+	return 0xffffUL & result;
+}
+
+__EXTERN_INLINE u32 jensen_inl(unsigned long addr)
+{
+	jensen_set_hae(0);
+	return *(vuip) ((addr << 7) + EISA_IO + 0x60);
+}
+
+__EXTERN_INLINE void jensen_outw(u16 b, unsigned long addr)
+{
+	jensen_set_hae(0);
+	*(vuip) ((addr << 7) + EISA_IO + 0x20) = b * 0x00010001;
+	mb();
+}
+
+__EXTERN_INLINE void jensen_outl(u32 b, unsigned long addr)
+{
+	jensen_set_hae(0);
+	*(vuip) ((addr << 7) + EISA_IO + 0x60) = b;
+	mb();
+}
+
+/*
+ * Memory functions.
+ */
+
+__EXTERN_INLINE u8 jensen_readb(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	long result;
+
+	jensen_set_hae(addr);
+	addr &= JENSEN_HAE_MASK;
+	result = *(volatile int *) ((addr << 7) + EISA_MEM + 0x00);
+	result >>= (addr & 3) * 8;
+	return 0xffUL & result;
+}
+
+__EXTERN_INLINE u16 jensen_readw(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	long result;
+
+	jensen_set_hae(addr);
+	addr &= JENSEN_HAE_MASK;
+	result = *(volatile int *) ((addr << 7) + EISA_MEM + 0x20);
+	result >>= (addr & 3) * 8;
+	return 0xffffUL & result;
+}
+
+__EXTERN_INLINE u32 jensen_readl(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	jensen_set_hae(addr);
+	addr &= JENSEN_HAE_MASK;
+	return *(vuip) ((addr << 7) + EISA_MEM + 0x60);
+}
+
+__EXTERN_INLINE u64 jensen_readq(const volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	unsigned long r0, r1;
+
+	jensen_set_hae(addr);
+	addr &= JENSEN_HAE_MASK;
+	addr = (addr << 7) + EISA_MEM + 0x60;
+	r0 = *(vuip) (addr);
+	r1 = *(vuip) (addr + (4 << 7));
+	return r1 << 32 | r0;
+}
+
+__EXTERN_INLINE void jensen_writeb(u8 b, volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	jensen_set_hae(addr);
+	addr &= JENSEN_HAE_MASK;
+	*(vuip) ((addr << 7) + EISA_MEM + 0x00) = b * 0x01010101;
+}
+
+__EXTERN_INLINE void jensen_writew(u16 b, volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	jensen_set_hae(addr);
+	addr &= JENSEN_HAE_MASK;
+	*(vuip) ((addr << 7) + EISA_MEM + 0x20) = b * 0x00010001;
+}
+
+__EXTERN_INLINE void jensen_writel(u32 b, volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	jensen_set_hae(addr);
+	addr &= JENSEN_HAE_MASK;
+	*(vuip) ((addr << 7) + EISA_MEM + 0x60) = b;
+}
+
+__EXTERN_INLINE void jensen_writeq(u64 b, volatile void __iomem *xaddr)
+{
+	unsigned long addr = (unsigned long) xaddr;
+	jensen_set_hae(addr);
+	addr &= JENSEN_HAE_MASK;
+	addr = (addr << 7) + EISA_MEM + 0x60;
+	*(vuip) (addr) = b;
+	*(vuip) (addr + (4 << 7)) = b >> 32;
+}
+
+__EXTERN_INLINE void __iomem *jensen_ioportmap(unsigned long addr)
+{
+	return (void __iomem *)addr;
+}
+
+__EXTERN_INLINE void __iomem *jensen_ioremap(unsigned long addr,
+					     unsigned long size)
+{
+	return (void __iomem *)(addr + 0x100000000ul);
+}
+
+__EXTERN_INLINE int jensen_is_ioaddr(unsigned long addr)
+{
+	return (long)addr >= 0;
+}
+
+__EXTERN_INLINE int jensen_is_mmio(const volatile void __iomem *addr)
+{
+	return (unsigned long)addr >= 0x100000000ul;
+}
+
+/* New-style ioread interface.  All the routines are so ugly for Jensen
+   that it doesn't make sense to merge them.  */
+
+#define IOPORT(OS, NS)							\
+__EXTERN_INLINE unsigned int jensen_ioread##NS(const void __iomem *xaddr)	\
+{									\
+	if (jensen_is_mmio(xaddr))					\
+		return jensen_read##OS(xaddr - 0x100000000ul);		\
+	else								\
+		return jensen_in##OS((unsigned long)xaddr);		\
+}									\
+__EXTERN_INLINE void jensen_iowrite##NS(u##NS b, void __iomem *xaddr)	\
+{									\
+	if (jensen_is_mmio(xaddr))					\
+		jensen_write##OS(b, xaddr - 0x100000000ul);		\
+	else								\
+		jensen_out##OS(b, (unsigned long)xaddr);		\
+}
+
+IOPORT(b, 8)
+IOPORT(w, 16)
+IOPORT(l, 32)
+
+#undef IOPORT
+
+#undef vuip
+
+#undef __IO_PREFIX
+#define __IO_PREFIX		jensen
+#define jensen_trivial_rw_bw	0
+#define jensen_trivial_rw_lq	0
+#define jensen_trivial_io_bw	0
+#define jensen_trivial_io_lq	0
+#define jensen_trivial_iounmap	1
+#include <asm/io_trivial.h>
+
+#ifdef __IO_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __IO_EXTERN_INLINE
+#endif
+
+#endif /* __KERNEL__ */
+
+#endif /* __ALPHA_JENSEN_H */

arch/alpha/include/asm/kdebug.h

@@ -0,0 +1 @@
+#include <asm-generic/kdebug.h>

arch/alpha/include/asm/kmap_types.h

@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_KMAP_TYPES_H
+#define _ASM_KMAP_TYPES_H
+
+/* Dummy header just to define km_type. */
+
+#ifdef CONFIG_DEBUG_HIGHMEM
+#define  __WITH_KM_FENCE
+#endif
+
+#include <asm-generic/kmap_types.h>
+
+#undef __WITH_KM_FENCE
+
+#endif

arch/alpha/include/asm/linkage.h

@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_LINKAGE_H
+#define __ASM_LINKAGE_H
+
+#define cond_syscall(x)  asm(".weak\t" #x "\n" #x " = sys_ni_syscall")
+#define SYSCALL_ALIAS(alias, name)					\
+	asm ( #alias " = " #name "\n\t.globl " #alias)
+
+#endif

arch/alpha/include/asm/local.h

@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_LOCAL_H
+#define _ALPHA_LOCAL_H
+
+#include <linux/percpu.h>
+#include <linux/atomic.h>
+
+typedef struct
+{
+	atomic_long_t a;
+} local_t;
+
+#define LOCAL_INIT(i)	{ ATOMIC_LONG_INIT(i) }
+#define local_read(l)	atomic_long_read(&(l)->a)
+#define local_set(l,i)	atomic_long_set(&(l)->a, (i))
+#define local_inc(l)	atomic_long_inc(&(l)->a)
+#define local_dec(l)	atomic_long_dec(&(l)->a)
+#define local_add(i,l)	atomic_long_add((i),(&(l)->a))
+#define local_sub(i,l)	atomic_long_sub((i),(&(l)->a))
+
+static __inline__ long local_add_return(long i, local_t * l)
+{
+	long temp, result;
+	__asm__ __volatile__(
+	"1:	ldq_l %0,%1\n"
+	"	addq %0,%3,%2\n"
+	"	addq %0,%3,%0\n"
+	"	stq_c %0,%1\n"
+	"	beq %0,2f\n"
+	".subsection 2\n"
+	"2:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (l->a.counter), "=&r" (result)
+	:"Ir" (i), "m" (l->a.counter) : "memory");
+	return result;
+}
+
+static __inline__ long local_sub_return(long i, local_t * l)
+{
+	long temp, result;
+	__asm__ __volatile__(
+	"1:	ldq_l %0,%1\n"
+	"	subq %0,%3,%2\n"
+	"	subq %0,%3,%0\n"
+	"	stq_c %0,%1\n"
+	"	beq %0,2f\n"
+	".subsection 2\n"
+	"2:	br 1b\n"
+	".previous"
+	:"=&r" (temp), "=m" (l->a.counter), "=&r" (result)
+	:"Ir" (i), "m" (l->a.counter) : "memory");
+	return result;
+}
+
+#define local_cmpxchg(l, o, n) \
+	(cmpxchg_local(&((l)->a.counter), (o), (n)))
+#define local_xchg(l, n) (xchg_local(&((l)->a.counter), (n)))
+
+/**
+ * local_add_unless - add unless the number is a given value
+ * @l: pointer of type local_t
+ * @a: the amount to add to l...
+ * @u: ...unless l is equal to u.
+ *
+ * Atomically adds @a to @l, so long as it was not @u.
+ * Returns non-zero if @l was not @u, and zero otherwise.
+ */
+#define local_add_unless(l, a, u)				\
+({								\
+	long c, old;						\
+	c = local_read(l);					\
+	for (;;) {						\
+		if (unlikely(c == (u)))				\
+			break;					\
+		old = local_cmpxchg((l), c, c + (a));	\
+		if (likely(old == c))				\
+			break;					\
+		c = old;					\
+	}							\
+	c != (u);						\
+})
+#define local_inc_not_zero(l) local_add_unless((l), 1, 0)
+
+#define local_add_negative(a, l) (local_add_return((a), (l)) < 0)
+
+#define local_dec_return(l) local_sub_return(1,(l))
+
+#define local_inc_return(l) local_add_return(1,(l))
+
+#define local_sub_and_test(i,l) (local_sub_return((i), (l)) == 0)
+
+#define local_inc_and_test(l) (local_add_return(1, (l)) == 0)
+
+#define local_dec_and_test(l) (local_sub_return(1, (l)) == 0)
+
+/* Verify if faster than atomic ops */
+#define __local_inc(l)		((l)->a.counter++)
+#define __local_dec(l)		((l)->a.counter++)
+#define __local_add(i,l)	((l)->a.counter+=(i))
+#define __local_sub(i,l)	((l)->a.counter-=(i))
+
+#endif /* _ALPHA_LOCAL_H */

arch/alpha/include/asm/machvec.h

@@ -0,0 +1,137 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_MACHVEC_H
+#define __ALPHA_MACHVEC_H 1
+
+#include <linux/types.h>
+
+/*
+ *	This file gets pulled in by asm/io.h from user space. We don't
+ *	want most of this escaping.
+ */
+ 
+#ifdef __KERNEL__
+
+/* The following structure vectors all of the I/O and IRQ manipulation
+   from the generic kernel to the hardware specific backend.  */
+
+struct task_struct;
+struct mm_struct;
+struct vm_area_struct;
+struct linux_hose_info;
+struct pci_dev;
+struct pci_ops;
+struct pci_controller;
+struct _alpha_agp_info;
+struct rtc_time;
+
+struct alpha_machine_vector
+{
+	/* This "belongs" down below with the rest of the runtime
+	   variables, but it is convenient for entry.S if these 
+	   two slots are at the beginning of the struct.  */
+	unsigned long hae_cache;
+	unsigned long *hae_register;
+
+	int nr_irqs;
+	int rtc_port;
+	int rtc_boot_cpu_only;
+	unsigned int max_asn;
+	unsigned long max_isa_dma_address;
+	unsigned long irq_probe_mask;
+	unsigned long iack_sc;
+	unsigned long min_io_address;
+	unsigned long min_mem_address;
+	unsigned long pci_dac_offset;
+
+	void (*mv_pci_tbi)(struct pci_controller *hose,
+			   dma_addr_t start, dma_addr_t end);
+
+	unsigned int (*mv_ioread8)(const void __iomem *);
+	unsigned int (*mv_ioread16)(const void __iomem *);
+	unsigned int (*mv_ioread32)(const void __iomem *);
+
+	void (*mv_iowrite8)(u8, void __iomem *);
+	void (*mv_iowrite16)(u16, void __iomem *);
+	void (*mv_iowrite32)(u32, void __iomem *);
+
+	u8 (*mv_readb)(const volatile void __iomem *);
+	u16 (*mv_readw)(const volatile void __iomem *);
+	u32 (*mv_readl)(const volatile void __iomem *);
+	u64 (*mv_readq)(const volatile void __iomem *);
+
+	void (*mv_writeb)(u8, volatile void __iomem *);
+	void (*mv_writew)(u16, volatile void __iomem *);
+	void (*mv_writel)(u32, volatile void __iomem *);
+	void (*mv_writeq)(u64, volatile void __iomem *);
+
+	void __iomem *(*mv_ioportmap)(unsigned long);
+	void __iomem *(*mv_ioremap)(unsigned long, unsigned long);
+	void (*mv_iounmap)(volatile void __iomem *);
+	int (*mv_is_ioaddr)(unsigned long);
+	int (*mv_is_mmio)(const volatile void __iomem *);
+
+	void (*mv_switch_mm)(struct mm_struct *, struct mm_struct *,
+			     struct task_struct *);
+	void (*mv_activate_mm)(struct mm_struct *, struct mm_struct *);
+
+	void (*mv_flush_tlb_current)(struct mm_struct *);
+	void (*mv_flush_tlb_current_page)(struct mm_struct * mm,
+					  struct vm_area_struct *vma,
+					  unsigned long addr);
+
+	void (*update_irq_hw)(unsigned long, unsigned long, int);
+	void (*ack_irq)(unsigned long);
+	void (*device_interrupt)(unsigned long vector);
+	void (*machine_check)(unsigned long vector, unsigned long la);
+
+	void (*smp_callin)(void);
+	void (*init_arch)(void);
+	void (*init_irq)(void);
+	void (*init_rtc)(void);
+	void (*init_pci)(void);
+	void (*kill_arch)(int);
+
+	u8 (*pci_swizzle)(struct pci_dev *, u8 *);
+	int (*pci_map_irq)(const struct pci_dev *, u8, u8);
+	struct pci_ops *pci_ops;
+
+	struct _alpha_agp_info *(*agp_info)(void);
+
+	const char *vector_name;
+
+	/* System specific parameters.  */
+	union {
+	    struct {
+		unsigned long gru_int_req_bits;
+	    } cia;
+
+	    struct {
+		unsigned long gamma_bias;
+	    } t2;
+
+	    struct {
+		unsigned int route_tab;
+	    } sio;
+	} sys;
+};
+
+extern struct alpha_machine_vector alpha_mv;
+
+#ifdef CONFIG_ALPHA_GENERIC
+extern int alpha_using_srm;
+extern int alpha_using_qemu;
+#else
+# ifdef CONFIG_ALPHA_SRM
+#  define alpha_using_srm 1
+# else
+#  define alpha_using_srm 0
+# endif
+# ifdef CONFIG_ALPHA_QEMU
+#  define alpha_using_qemu 1
+# else
+#  define alpha_using_qemu 0
+# endif
+#endif /* GENERIC */
+
+#endif /* __KERNEL__ */
+#endif /* __ALPHA_MACHVEC_H */

arch/alpha/include/asm/mc146818rtc.h

@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Machine dependent access functions for RTC registers.
+ */
+#ifndef __ASM_ALPHA_MC146818RTC_H
+#define __ASM_ALPHA_MC146818RTC_H
+
+#include <asm/io.h>
+
+#ifndef RTC_PORT
+#define RTC_PORT(x)	(0x70 + (x))
+#define RTC_ALWAYS_BCD	1	/* RTC operates in binary mode */
+#endif
+
+/*
+ * The yet supported machines all access the RTC index register via
+ * an ISA port access but the way to access the date register differs ...
+ */
+#define CMOS_READ(addr) ({ \
+outb_p((addr),RTC_PORT(0)); \
+inb_p(RTC_PORT(1)); \
+})
+#define CMOS_WRITE(val, addr) ({ \
+outb_p((addr),RTC_PORT(0)); \
+outb_p((val),RTC_PORT(1)); \
+})
+
+#endif /* __ASM_ALPHA_MC146818RTC_H */

arch/alpha/include/asm/mce.h

@@ -0,0 +1,84 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_MCE_H
+#define __ALPHA_MCE_H
+
+/*
+ * This is the logout header that should be common to all platforms
+ * (assuming they are running OSF/1 PALcode, I guess).
+ */
+struct el_common {
+	unsigned int	size;		/* size in bytes of logout area */
+	unsigned int	sbz1	: 30;	/* should be zero */
+	unsigned int	err2	:  1;	/* second error */
+	unsigned int	retry	:  1;	/* retry flag */
+	unsigned int	proc_offset;	/* processor-specific offset */
+	unsigned int	sys_offset;	/* system-specific offset */
+	unsigned int	code;		/* machine check code */
+	unsigned int	frame_rev;	/* frame revision */
+};
+
+/* Machine Check Frame for uncorrectable errors (Large format)
+ *      --- This is used to log uncorrectable errors such as
+ *          double bit ECC errors.
+ *      --- These errors are detected by both processor and systems.
+ */
+struct el_common_EV5_uncorrectable_mcheck {
+        unsigned long   shadow[8];        /* Shadow reg. 8-14, 25           */
+        unsigned long   paltemp[24];      /* PAL TEMP REGS.                 */
+        unsigned long   exc_addr;         /* Address of excepting instruction*/
+        unsigned long   exc_sum;          /* Summary of arithmetic traps.   */
+        unsigned long   exc_mask;         /* Exception mask (from exc_sum). */
+        unsigned long   pal_base;         /* Base address for PALcode.      */
+        unsigned long   isr;              /* Interrupt Status Reg.          */
+        unsigned long   icsr;             /* CURRENT SETUP OF EV5 IBOX      */
+        unsigned long   ic_perr_stat;     /* I-CACHE Reg. <11> set Data parity
+                                                         <12> set TAG parity*/
+        unsigned long   dc_perr_stat;     /* D-CACHE error Reg. Bits set to 1:
+                                                     <2> Data error in bank 0
+                                                     <3> Data error in bank 1
+                                                     <4> Tag error in bank 0
+                                                     <5> Tag error in bank 1 */
+        unsigned long   va;               /* Effective VA of fault or miss. */
+        unsigned long   mm_stat;          /* Holds the reason for D-stream 
+                                             fault or D-cache parity errors */
+        unsigned long   sc_addr;          /* Address that was being accessed
+                                             when EV5 detected Secondary cache
+                                             failure.                 */
+        unsigned long   sc_stat;          /* Helps determine if the error was
+                                             TAG/Data parity(Secondary Cache)*/
+        unsigned long   bc_tag_addr;      /* Contents of EV5 BC_TAG_ADDR    */
+        unsigned long   ei_addr;          /* Physical address of any transfer
+                                             that is logged in EV5 EI_STAT */
+        unsigned long   fill_syndrome;    /* For correcting ECC errors.     */
+        unsigned long   ei_stat;          /* Helps identify reason of any 
+                                             processor uncorrectable error
+                                             at its external interface.     */
+        unsigned long   ld_lock;          /* Contents of EV5 LD_LOCK register*/
+};
+
+struct el_common_EV6_mcheck {
+	unsigned int FrameSize;		/* Bytes, including this field */
+	unsigned int FrameFlags;	/* <31> = Retry, <30> = Second Error */
+	unsigned int CpuOffset;		/* Offset to CPU-specific info */
+	unsigned int SystemOffset;	/* Offset to system-specific info */
+	unsigned int MCHK_Code;
+	unsigned int MCHK_Frame_Rev;
+	unsigned long I_STAT;		/* EV6 Internal Processor Registers */
+	unsigned long DC_STAT;		/* (See the 21264 Spec) */
+	unsigned long C_ADDR;
+	unsigned long DC1_SYNDROME;
+	unsigned long DC0_SYNDROME;
+	unsigned long C_STAT;
+	unsigned long C_STS;
+	unsigned long MM_STAT;
+	unsigned long EXC_ADDR;
+	unsigned long IER_CM;
+	unsigned long ISUM;
+	unsigned long RESERVED0;
+	unsigned long PAL_BASE;
+	unsigned long I_CTL;
+	unsigned long PCTX;
+};
+
+
+#endif /* __ALPHA_MCE_H */

arch/alpha/include/asm/mmu.h

@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_MMU_H
+#define __ALPHA_MMU_H
+
+/* The alpha MMU context is one "unsigned long" bitmap per CPU */
+typedef unsigned long mm_context_t[NR_CPUS];
+
+#endif

arch/alpha/include/asm/mmu_context.h

@@ -0,0 +1,259 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_MMU_CONTEXT_H
+#define __ALPHA_MMU_CONTEXT_H
+
+/*
+ * get a new mmu context..
+ *
+ * Copyright (C) 1996, Linus Torvalds
+ */
+
+#include <linux/mm_types.h>
+#include <linux/sched.h>
+
+#include <asm/machvec.h>
+#include <asm/compiler.h>
+#include <asm-generic/mm_hooks.h>
+
+/*
+ * Force a context reload. This is needed when we change the page
+ * table pointer or when we update the ASN of the current process.
+ */
+
+/* Don't get into trouble with dueling __EXTERN_INLINEs.  */
+#ifndef __EXTERN_INLINE
+#include <asm/io.h>
+#endif
+
+
+static inline unsigned long
+__reload_thread(struct pcb_struct *pcb)
+{
+	register unsigned long a0 __asm__("$16");
+	register unsigned long v0 __asm__("$0");
+
+	a0 = virt_to_phys(pcb);
+	__asm__ __volatile__(
+		"call_pal %2 #__reload_thread"
+		: "=r"(v0), "=r"(a0)
+		: "i"(PAL_swpctx), "r"(a0)
+		: "$1", "$22", "$23", "$24", "$25");
+
+	return v0;
+}
+
+
+/*
+ * The maximum ASN's the processor supports.  On the EV4 this is 63
+ * but the PAL-code doesn't actually use this information.  On the
+ * EV5 this is 127, and EV6 has 255.
+ *
+ * On the EV4, the ASNs are more-or-less useless anyway, as they are
+ * only used as an icache tag, not for TB entries.  On the EV5 and EV6,
+ * ASN's also validate the TB entries, and thus make a lot more sense.
+ *
+ * The EV4 ASN's don't even match the architecture manual, ugh.  And
+ * I quote: "If a processor implements address space numbers (ASNs),
+ * and the old PTE has the Address Space Match (ASM) bit clear (ASNs
+ * in use) and the Valid bit set, then entries can also effectively be
+ * made coherent by assigning a new, unused ASN to the currently
+ * running process and not reusing the previous ASN before calling the
+ * appropriate PALcode routine to invalidate the translation buffer (TB)". 
+ *
+ * In short, the EV4 has a "kind of" ASN capability, but it doesn't actually
+ * work correctly and can thus not be used (explaining the lack of PAL-code
+ * support).
+ */
+#define EV4_MAX_ASN 63
+#define EV5_MAX_ASN 127
+#define EV6_MAX_ASN 255
+
+#ifdef CONFIG_ALPHA_GENERIC
+# define MAX_ASN	(alpha_mv.max_asn)
+#else
+# ifdef CONFIG_ALPHA_EV4
+#  define MAX_ASN	EV4_MAX_ASN
+# elif defined(CONFIG_ALPHA_EV5)
+#  define MAX_ASN	EV5_MAX_ASN
+# else
+#  define MAX_ASN	EV6_MAX_ASN
+# endif
+#endif
+
+/*
+ * cpu_last_asn(processor):
+ * 63                                            0
+ * +-------------+----------------+--------------+
+ * | asn version | this processor | hardware asn |
+ * +-------------+----------------+--------------+
+ */
+
+#include <asm/smp.h>
+#ifdef CONFIG_SMP
+#define cpu_last_asn(cpuid)	(cpu_data[cpuid].last_asn)
+#else
+extern unsigned long last_asn;
+#define cpu_last_asn(cpuid)	last_asn
+#endif /* CONFIG_SMP */
+
+#define WIDTH_HARDWARE_ASN	8
+#define ASN_FIRST_VERSION (1UL << WIDTH_HARDWARE_ASN)
+#define HARDWARE_ASN_MASK ((1UL << WIDTH_HARDWARE_ASN) - 1)
+
+/*
+ * NOTE! The way this is set up, the high bits of the "asn_cache" (and
+ * the "mm->context") are the ASN _version_ code. A version of 0 is
+ * always considered invalid, so to invalidate another process you only
+ * need to do "p->mm->context = 0".
+ *
+ * If we need more ASN's than the processor has, we invalidate the old
+ * user TLB's (tbiap()) and start a new ASN version. That will automatically
+ * force a new asn for any other processes the next time they want to
+ * run.
+ */
+
+#ifndef __EXTERN_INLINE
+#define __EXTERN_INLINE extern inline
+#define __MMU_EXTERN_INLINE
+#endif
+
+extern inline unsigned long
+__get_new_mm_context(struct mm_struct *mm, long cpu)
+{
+	unsigned long asn = cpu_last_asn(cpu);
+	unsigned long next = asn + 1;
+
+	if ((asn & HARDWARE_ASN_MASK) >= MAX_ASN) {
+		tbiap();
+		imb();
+		next = (asn & ~HARDWARE_ASN_MASK) + ASN_FIRST_VERSION;
+	}
+	cpu_last_asn(cpu) = next;
+	return next;
+}
+
+__EXTERN_INLINE void
+ev5_switch_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm,
+	      struct task_struct *next)
+{
+	/* Check if our ASN is of an older version, and thus invalid. */
+	unsigned long asn;
+	unsigned long mmc;
+	long cpu = smp_processor_id();
+
+#ifdef CONFIG_SMP
+	cpu_data[cpu].asn_lock = 1;
+	barrier();
+#endif
+	asn = cpu_last_asn(cpu);
+	mmc = next_mm->context[cpu];
+	if ((mmc ^ asn) & ~HARDWARE_ASN_MASK) {
+		mmc = __get_new_mm_context(next_mm, cpu);
+		next_mm->context[cpu] = mmc;
+	}
+#ifdef CONFIG_SMP
+	else
+		cpu_data[cpu].need_new_asn = 1;
+#endif
+
+	/* Always update the PCB ASN.  Another thread may have allocated
+	   a new mm->context (via flush_tlb_mm) without the ASN serial
+	   number wrapping.  We have no way to detect when this is needed.  */
+	task_thread_info(next)->pcb.asn = mmc & HARDWARE_ASN_MASK;
+}
+
+__EXTERN_INLINE void
+ev4_switch_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm,
+	      struct task_struct *next)
+{
+	/* As described, ASN's are broken for TLB usage.  But we can
+	   optimize for switching between threads -- if the mm is
+	   unchanged from current we needn't flush.  */
+	/* ??? May not be needed because EV4 PALcode recognizes that
+	   ASN's are broken and does a tbiap itself on swpctx, under
+	   the "Must set ASN or flush" rule.  At least this is true
+	   for a 1992 SRM, reports Joseph Martin (jmartin@hlo.dec.com).
+	   I'm going to leave this here anyway, just to Be Sure.  -- r~  */
+	if (prev_mm != next_mm)
+		tbiap();
+
+	/* Do continue to allocate ASNs, because we can still use them
+	   to avoid flushing the icache.  */
+	ev5_switch_mm(prev_mm, next_mm, next);
+}
+
+extern void __load_new_mm_context(struct mm_struct *);
+
+#ifdef CONFIG_SMP
+#define check_mmu_context()					\
+do {								\
+	int cpu = smp_processor_id();				\
+	cpu_data[cpu].asn_lock = 0;				\
+	barrier();						\
+	if (cpu_data[cpu].need_new_asn) {			\
+		struct mm_struct * mm = current->active_mm;	\
+		cpu_data[cpu].need_new_asn = 0;			\
+		if (!mm->context[cpu])			\
+			__load_new_mm_context(mm);		\
+	}							\
+} while(0)
+#else
+#define check_mmu_context()  do { } while(0)
+#endif
+
+__EXTERN_INLINE void
+ev5_activate_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm)
+{
+	__load_new_mm_context(next_mm);
+}
+
+__EXTERN_INLINE void
+ev4_activate_mm(struct mm_struct *prev_mm, struct mm_struct *next_mm)
+{
+	__load_new_mm_context(next_mm);
+	tbiap();
+}
+
+#ifdef CONFIG_ALPHA_GENERIC
+# define switch_mm(a,b,c)	alpha_mv.mv_switch_mm((a),(b),(c))
+# define activate_mm(x,y)	alpha_mv.mv_activate_mm((x),(y))
+#else
+# ifdef CONFIG_ALPHA_EV4
+#  define switch_mm(a,b,c)	ev4_switch_mm((a),(b),(c))
+#  define activate_mm(x,y)	ev4_activate_mm((x),(y))
+# else
+#  define switch_mm(a,b,c)	ev5_switch_mm((a),(b),(c))
+#  define activate_mm(x,y)	ev5_activate_mm((x),(y))
+# endif
+#endif
+
+#define init_new_context init_new_context
+static inline int
+init_new_context(struct task_struct *tsk, struct mm_struct *mm)
+{
+	int i;
+
+	for_each_online_cpu(i)
+		mm->context[i] = 0;
+	if (tsk != current)
+		task_thread_info(tsk)->pcb.ptbr
+		  = ((unsigned long)mm->pgd - IDENT_ADDR) >> PAGE_SHIFT;
+	return 0;
+}
+
+#define enter_lazy_tlb enter_lazy_tlb
+static inline void
+enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
+{
+	task_thread_info(tsk)->pcb.ptbr
+	  = ((unsigned long)mm->pgd - IDENT_ADDR) >> PAGE_SHIFT;
+}
+
+#include <asm-generic/mmu_context.h>
+
+#ifdef __MMU_EXTERN_INLINE
+#undef __EXTERN_INLINE
+#undef __MMU_EXTERN_INLINE
+#endif
+
+#endif /* __ALPHA_MMU_CONTEXT_H */

arch/alpha/include/asm/mmzone.h

@@ -0,0 +1,110 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99
+ * Adapted for the alpha wildfire architecture Jan 2001.
+ */
+#ifndef _ASM_MMZONE_H_
+#define _ASM_MMZONE_H_
+
+#include <asm/smp.h>
+
+/*
+ * Following are macros that are specific to this numa platform.
+ */
+
+extern pg_data_t node_data[];
+
+#define alpha_pa_to_nid(pa)		\
+        (alpha_mv.pa_to_nid 		\
+	 ? alpha_mv.pa_to_nid(pa)	\
+	 : (0))
+#define node_mem_start(nid)		\
+        (alpha_mv.node_mem_start 	\
+	 ? alpha_mv.node_mem_start(nid) \
+	 : (0UL))
+#define node_mem_size(nid)		\
+        (alpha_mv.node_mem_size 	\
+	 ? alpha_mv.node_mem_size(nid) 	\
+	 : ((nid) ? (0UL) : (~0UL)))
+
+#define pa_to_nid(pa)		alpha_pa_to_nid(pa)
+#define NODE_DATA(nid)		(&node_data[(nid)])
+
+#define node_localnr(pfn, nid)	((pfn) - NODE_DATA(nid)->node_start_pfn)
+
+#if 1
+#define PLAT_NODE_DATA_LOCALNR(p, n)	\
+	(((p) >> PAGE_SHIFT) - PLAT_NODE_DATA(n)->gendata.node_start_pfn)
+#else
+static inline unsigned long
+PLAT_NODE_DATA_LOCALNR(unsigned long p, int n)
+{
+	unsigned long temp;
+	temp = p >> PAGE_SHIFT;
+	return temp - PLAT_NODE_DATA(n)->gendata.node_start_pfn;
+}
+#endif
+
+#ifdef CONFIG_DISCONTIGMEM
+
+/*
+ * Following are macros that each numa implementation must define.
+ */
+
+/*
+ * Given a kernel address, find the home node of the underlying memory.
+ */
+#define kvaddr_to_nid(kaddr)	pa_to_nid(__pa(kaddr))
+
+/*
+ * Given a kaddr, LOCAL_BASE_ADDR finds the owning node of the memory
+ * and returns the kaddr corresponding to first physical page in the
+ * node's mem_map.
+ */
+#define LOCAL_BASE_ADDR(kaddr)						  \
+    ((unsigned long)__va(NODE_DATA(kvaddr_to_nid(kaddr))->node_start_pfn  \
+			 << PAGE_SHIFT))
+
+/* XXX: FIXME -- nyc */
+#define kern_addr_valid(kaddr)	(0)
+
+#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+
+#define pmd_page(pmd)		(pfn_to_page(pmd_val(pmd) >> 32))
+#define pte_pfn(pte)		(pte_val(pte) >> 32)
+
+#define mk_pte(page, pgprot)						     \
+({								 	     \
+	pte_t pte;                                                           \
+	unsigned long pfn;                                                   \
+									     \
+	pfn = page_to_pfn(page) << 32; \
+	pte_val(pte) = pfn | pgprot_val(pgprot);			     \
+									     \
+	pte;								     \
+})
+
+#define pte_page(x)							\
+({									\
+       	unsigned long kvirt;						\
+	struct page * __xx;						\
+									\
+	kvirt = (unsigned long)__va(pte_val(x) >> (32-PAGE_SHIFT));	\
+	__xx = virt_to_page(kvirt);					\
+									\
+	__xx;                                                           \
+})
+
+#define page_to_pa(page)						\
+	(page_to_pfn(page) << PAGE_SHIFT)
+
+#define pfn_to_nid(pfn)		pa_to_nid(((u64)(pfn) << PAGE_SHIFT))
+#define pfn_valid(pfn)							\
+	(((pfn) - node_start_pfn(pfn_to_nid(pfn))) <			\
+	 node_spanned_pages(pfn_to_nid(pfn)))					\
+
+#define virt_addr_valid(kaddr)	pfn_valid((__pa(kaddr) >> PAGE_SHIFT))
+
+#endif /* CONFIG_DISCONTIGMEM */
+
+#endif /* _ASM_MMZONE_H_ */

arch/alpha/include/asm/module.h

@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_MODULE_H
+#define _ALPHA_MODULE_H
+
+#include <asm-generic/module.h>
+
+struct mod_arch_specific
+{
+	unsigned int gotsecindex;
+};
+
+#define ARCH_SHF_SMALL SHF_ALPHA_GPREL
+
+#ifdef MODULE
+asm(".section .got,\"aws\",@progbits; .align 3; .previous");
+#endif
+
+#endif /*_ALPHA_MODULE_H*/

arch/alpha/include/asm/page.h

@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_PAGE_H
+#define _ALPHA_PAGE_H
+
+#include <linux/const.h>
+#include <asm/pal.h>
+
+/* PAGE_SHIFT determines the page size */
+#define PAGE_SHIFT	13
+#define PAGE_SIZE	(_AC(1,UL) << PAGE_SHIFT)
+#define PAGE_MASK	(~(PAGE_SIZE-1))
+
+#ifndef __ASSEMBLY__
+
+#define STRICT_MM_TYPECHECKS
+
+extern void clear_page(void *page);
+#define clear_user_page(page, vaddr, pg)	clear_page(page)
+
+#define alloc_zeroed_user_highpage_movable(vma, vaddr) \
+	alloc_page_vma(GFP_HIGHUSER_MOVABLE | __GFP_ZERO, vma, vmaddr)
+#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE_MOVABLE
+
+extern void copy_page(void * _to, void * _from);
+#define copy_user_page(to, from, vaddr, pg)	copy_page(to, from)
+
+#ifdef STRICT_MM_TYPECHECKS
+/*
+ * These are used to make use of C type-checking..
+ */
+typedef struct { unsigned long pte; } pte_t;
+typedef struct { unsigned long pmd; } pmd_t;
+typedef struct { unsigned long pgd; } pgd_t;
+typedef struct { unsigned long pgprot; } pgprot_t;
+
+#define pte_val(x)	((x).pte)
+#define pmd_val(x)	((x).pmd)
+#define pgd_val(x)	((x).pgd)
+#define pgprot_val(x)	((x).pgprot)
+
+#define __pte(x)	((pte_t) { (x) } )
+#define __pmd(x)	((pmd_t) { (x) } )
+#define __pgd(x)	((pgd_t) { (x) } )
+#define __pgprot(x)	((pgprot_t) { (x) } )
+
+#else
+/*
+ * .. while these make it easier on the compiler
+ */
+typedef unsigned long pte_t;
+typedef unsigned long pmd_t;
+typedef unsigned long pgd_t;
+typedef unsigned long pgprot_t;
+
+#define pte_val(x)	(x)
+#define pmd_val(x)	(x)
+#define pgd_val(x)	(x)
+#define pgprot_val(x)	(x)
+
+#define __pte(x)	(x)
+#define __pgd(x)	(x)
+#define __pgprot(x)	(x)
+
+#endif /* STRICT_MM_TYPECHECKS */
+
+typedef struct page *pgtable_t;
+
+#ifdef USE_48_BIT_KSEG
+#define PAGE_OFFSET		0xffff800000000000UL
+#else
+#define PAGE_OFFSET		0xfffffc0000000000UL
+#endif
+
+#else
+
+#ifdef USE_48_BIT_KSEG
+#define PAGE_OFFSET		0xffff800000000000
+#else
+#define PAGE_OFFSET		0xfffffc0000000000
+#endif
+
+#endif /* !__ASSEMBLY__ */
+
+#define __pa(x)			((unsigned long) (x) - PAGE_OFFSET)
+#define __va(x)			((void *)((unsigned long) (x) + PAGE_OFFSET))
+
+#define virt_to_page(kaddr)	pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
+#define virt_addr_valid(kaddr)	pfn_valid((__pa(kaddr) >> PAGE_SHIFT))
+
+#ifdef CONFIG_FLATMEM
+#define pfn_valid(pfn)		((pfn) < max_mapnr)
+#endif /* CONFIG_FLATMEM */
+
+#include <asm-generic/memory_model.h>
+#include <asm-generic/getorder.h>
+
+#endif /* _ALPHA_PAGE_H */

arch/alpha/include/asm/pal.h

@@ -0,0 +1,187 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_PAL_H
+#define __ALPHA_PAL_H
+
+#include <uapi/asm/pal.h>
+
+#ifndef __ASSEMBLY__
+
+extern void halt(void) __attribute__((noreturn));
+#define __halt() __asm__ __volatile__ ("call_pal %0 #halt" : : "i" (PAL_halt))
+
+#define imb() \
+__asm__ __volatile__ ("call_pal %0 #imb" : : "i" (PAL_imb) : "memory")
+
+#define draina() \
+__asm__ __volatile__ ("call_pal %0 #draina" : : "i" (PAL_draina) : "memory")
+
+#define __CALL_PAL_R0(NAME, TYPE)				\
+extern inline TYPE NAME(void)					\
+{								\
+	register TYPE __r0 __asm__("$0");			\
+	__asm__ __volatile__(					\
+		"call_pal %1 # " #NAME				\
+		:"=r" (__r0)					\
+		:"i" (PAL_ ## NAME)				\
+		:"$1", "$16", "$22", "$23", "$24", "$25");	\
+	return __r0;						\
+}
+
+#define __CALL_PAL_W1(NAME, TYPE0)				\
+extern inline void NAME(TYPE0 arg0)				\
+{								\
+	register TYPE0 __r16 __asm__("$16") = arg0;		\
+	__asm__ __volatile__(					\
+		"call_pal %1 # "#NAME				\
+		: "=r"(__r16)					\
+		: "i"(PAL_ ## NAME), "0"(__r16)			\
+		: "$1", "$22", "$23", "$24", "$25");		\
+}
+
+#define __CALL_PAL_W2(NAME, TYPE0, TYPE1)			\
+extern inline void NAME(TYPE0 arg0, TYPE1 arg1)			\
+{								\
+	register TYPE0 __r16 __asm__("$16") = arg0;		\
+	register TYPE1 __r17 __asm__("$17") = arg1;		\
+	__asm__ __volatile__(					\
+		"call_pal %2 # "#NAME				\
+		: "=r"(__r16), "=r"(__r17)			\
+		: "i"(PAL_ ## NAME), "0"(__r16), "1"(__r17)	\
+		: "$1", "$22", "$23", "$24", "$25");		\
+}
+
+#define __CALL_PAL_RW1(NAME, RTYPE, TYPE0)			\
+extern inline RTYPE NAME(TYPE0 arg0)				\
+{								\
+	register RTYPE __r0 __asm__("$0");			\
+	register TYPE0 __r16 __asm__("$16") = arg0;		\
+	__asm__ __volatile__(					\
+		"call_pal %2 # "#NAME				\
+		: "=r"(__r16), "=r"(__r0)			\
+		: "i"(PAL_ ## NAME), "0"(__r16)			\
+		: "$1", "$22", "$23", "$24", "$25");		\
+	return __r0;						\
+}
+
+#define __CALL_PAL_RW2(NAME, RTYPE, TYPE0, TYPE1)		\
+extern inline RTYPE NAME(TYPE0 arg0, TYPE1 arg1)		\
+{								\
+	register RTYPE __r0 __asm__("$0");			\
+	register TYPE0 __r16 __asm__("$16") = arg0;		\
+	register TYPE1 __r17 __asm__("$17") = arg1;		\
+	__asm__ __volatile__(					\
+		"call_pal %3 # "#NAME				\
+		: "=r"(__r16), "=r"(__r17), "=r"(__r0)		\
+		: "i"(PAL_ ## NAME), "0"(__r16), "1"(__r17)	\
+		: "$1", "$22", "$23", "$24", "$25");		\
+	return __r0;						\
+}
+
+__CALL_PAL_W1(cflush, unsigned long);
+__CALL_PAL_R0(rdmces, unsigned long);
+__CALL_PAL_R0(rdps, unsigned long);
+__CALL_PAL_R0(rdusp, unsigned long);
+__CALL_PAL_RW1(swpipl, unsigned long, unsigned long);
+__CALL_PAL_R0(whami, unsigned long);
+__CALL_PAL_W2(wrent, void*, unsigned long);
+__CALL_PAL_W1(wripir, unsigned long);
+__CALL_PAL_W1(wrkgp, unsigned long);
+__CALL_PAL_W1(wrmces, unsigned long);
+__CALL_PAL_RW2(wrperfmon, unsigned long, unsigned long, unsigned long);
+__CALL_PAL_W1(wrusp, unsigned long);
+__CALL_PAL_W1(wrvptptr, unsigned long);
+__CALL_PAL_RW1(wtint, unsigned long, unsigned long);
+
+/*
+ * TB routines..
+ */
+#define __tbi(nr,arg,arg1...)					\
+({								\
+	register unsigned long __r16 __asm__("$16") = (nr);	\
+	register unsigned long __r17 __asm__("$17"); arg;	\
+	__asm__ __volatile__(					\
+		"call_pal %3 #__tbi"				\
+		:"=r" (__r16),"=r" (__r17)			\
+		:"0" (__r16),"i" (PAL_tbi) ,##arg1		\
+		:"$0", "$1", "$22", "$23", "$24", "$25");	\
+})
+
+#define tbi(x,y)	__tbi(x,__r17=(y),"1" (__r17))
+#define tbisi(x)	__tbi(1,__r17=(x),"1" (__r17))
+#define tbisd(x)	__tbi(2,__r17=(x),"1" (__r17))
+#define tbis(x)		__tbi(3,__r17=(x),"1" (__r17))
+#define tbiap()		__tbi(-1, /* no second argument */)
+#define tbia()		__tbi(-2, /* no second argument */)
+
+/*
+ * QEMU Cserv routines..
+ */
+
+static inline unsigned long
+qemu_get_walltime(void)
+{
+	register unsigned long v0 __asm__("$0");
+	register unsigned long a0 __asm__("$16") = 3;
+
+	asm("call_pal %2 # cserve get_time"
+	    : "=r"(v0), "+r"(a0)
+	    : "i"(PAL_cserve)
+	    : "$17", "$18", "$19", "$20", "$21");
+
+	return v0;
+}
+
+static inline unsigned long
+qemu_get_alarm(void)
+{
+	register unsigned long v0 __asm__("$0");
+	register unsigned long a0 __asm__("$16") = 4;
+
+	asm("call_pal %2 # cserve get_alarm"
+	    : "=r"(v0), "+r"(a0)
+	    : "i"(PAL_cserve)
+	    : "$17", "$18", "$19", "$20", "$21");
+
+	return v0;
+}
+
+static inline void
+qemu_set_alarm_rel(unsigned long expire)
+{
+	register unsigned long a0 __asm__("$16") = 5;
+	register unsigned long a1 __asm__("$17") = expire;
+
+	asm volatile("call_pal %2 # cserve set_alarm_rel"
+		     : "+r"(a0), "+r"(a1)
+		     : "i"(PAL_cserve)
+		     : "$0", "$18", "$19", "$20", "$21");
+}
+
+static inline void
+qemu_set_alarm_abs(unsigned long expire)
+{
+	register unsigned long a0 __asm__("$16") = 6;
+	register unsigned long a1 __asm__("$17") = expire;
+
+	asm volatile("call_pal %2 # cserve set_alarm_abs"
+		     : "+r"(a0), "+r"(a1)
+		     : "i"(PAL_cserve)
+		     : "$0", "$18", "$19", "$20", "$21");
+}
+
+static inline unsigned long
+qemu_get_vmtime(void)
+{
+	register unsigned long v0 __asm__("$0");
+	register unsigned long a0 __asm__("$16") = 7;
+
+	asm("call_pal %2 # cserve get_time"
+	    : "=r"(v0), "+r"(a0)
+	    : "i"(PAL_cserve)
+	    : "$17", "$18", "$19", "$20", "$21");
+
+	return v0;
+}
+
+#endif /* !__ASSEMBLY__ */
+#endif /* __ALPHA_PAL_H */

arch/alpha/include/asm/param.h

@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_ALPHA_PARAM_H
+#define _ASM_ALPHA_PARAM_H
+
+#include <uapi/asm/param.h>
+
+# undef HZ
+# define HZ		CONFIG_HZ
+# define USER_HZ	1024
+# define CLOCKS_PER_SEC	USER_HZ	/* frequency at which times() counts */
+
+#endif /* _ASM_ALPHA_PARAM_H */

arch/alpha/include/asm/parport.h

@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * parport.h: platform-specific PC-style parport initialisation
+ *
+ * Copyright (C) 1999, 2000  Tim Waugh <tim@cyberelk.demon.co.uk>
+ *
+ * This file should only be included by drivers/parport/parport_pc.c.
+ */
+
+#ifndef _ASM_AXP_PARPORT_H
+#define _ASM_AXP_PARPORT_H 1
+
+static int parport_pc_find_isa_ports (int autoirq, int autodma);
+static int parport_pc_find_nonpci_ports (int autoirq, int autodma)
+{
+	return parport_pc_find_isa_ports (autoirq, autodma);
+}
+
+#endif /* !(_ASM_AXP_PARPORT_H) */

arch/alpha/include/asm/pci.h

@@ -0,0 +1,100 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_PCI_H
+#define __ALPHA_PCI_H
+
+#ifdef __KERNEL__
+
+#include <linux/spinlock.h>
+#include <linux/dma-mapping.h>
+#include <linux/scatterlist.h>
+#include <asm/machvec.h>
+
+/*
+ * The following structure is used to manage multiple PCI busses.
+ */
+
+struct pci_iommu_arena;
+struct page;
+
+/* A controller.  Used to manage multiple PCI busses.  */
+
+struct pci_controller {
+	struct pci_controller *next;
+        struct pci_bus *bus;
+	struct resource *io_space;
+	struct resource *mem_space;
+
+	/* The following are for reporting to userland.  The invariant is
+	   that if we report a BWX-capable dense memory, we do not report
+	   a sparse memory at all, even if it exists.  */
+	unsigned long sparse_mem_base;
+	unsigned long dense_mem_base;
+	unsigned long sparse_io_base;
+	unsigned long dense_io_base;
+
+	/* This one's for the kernel only.  It's in KSEG somewhere.  */
+	unsigned long config_space_base;
+
+	unsigned int index;
+	/* For compatibility with current (as of July 2003) pciutils
+	   and XFree86. Eventually will be removed. */
+	unsigned int need_domain_info;
+
+	struct pci_iommu_arena *sg_pci;
+	struct pci_iommu_arena *sg_isa;
+
+	void *sysdata;
+};
+
+/* Override the logic in pci_scan_bus for skipping already-configured
+   bus numbers.  */
+
+#define pcibios_assign_all_busses()	1
+
+#define PCIBIOS_MIN_IO		alpha_mv.min_io_address
+#define PCIBIOS_MIN_MEM		alpha_mv.min_mem_address
+
+/* IOMMU controls.  */
+
+/* TODO: integrate with include/asm-generic/pci.h ? */
+static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
+{
+	return channel ? 15 : 14;
+}
+
+#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
+
+static inline int pci_proc_domain(struct pci_bus *bus)
+{
+	struct pci_controller *hose = bus->sysdata;
+	return hose->need_domain_info;
+}
+
+#endif /* __KERNEL__ */
+
+/* Values for the `which' argument to sys_pciconfig_iobase.  */
+#define IOBASE_HOSE		0
+#define IOBASE_SPARSE_MEM	1
+#define IOBASE_DENSE_MEM	2
+#define IOBASE_SPARSE_IO	3
+#define IOBASE_DENSE_IO		4
+#define IOBASE_ROOT_BUS		5
+#define IOBASE_FROM_HOSE	0x10000
+
+extern struct pci_dev *isa_bridge;
+
+extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
+			   size_t count);
+extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
+			    size_t count);
+extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
+				      struct vm_area_struct *vma,
+				      enum pci_mmap_state mmap_state);
+extern void pci_adjust_legacy_attr(struct pci_bus *bus,
+				   enum pci_mmap_state mmap_type);
+#define HAVE_PCI_LEGACY	1
+
+extern int pci_create_resource_files(struct pci_dev *dev);
+extern void pci_remove_resource_files(struct pci_dev *dev);
+
+#endif /* __ALPHA_PCI_H */

arch/alpha/include/asm/percpu.h

@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ALPHA_PERCPU_H
+#define __ALPHA_PERCPU_H
+
+/*
+ * To calculate addresses of locally defined variables, GCC uses
+ * 32-bit displacement from the GP. Which doesn't work for per cpu
+ * variables in modules, as an offset to the kernel per cpu area is
+ * way above 4G.
+ *
+ * Always use weak definitions for percpu variables in modules.
+ */
+#if defined(MODULE) && defined(CONFIG_SMP)
+#define ARCH_NEEDS_WEAK_PER_CPU
+#endif
+
+#include <asm-generic/percpu.h>
+
+#endif /* __ALPHA_PERCPU_H */

arch/alpha/include/asm/perf_event.h

@@ -0,0 +1,4 @@
+#ifndef __ASM_ALPHA_PERF_EVENT_H
+#define __ASM_ALPHA_PERF_EVENT_H
+
+#endif /* __ASM_ALPHA_PERF_EVENT_H */

arch/alpha/include/asm/pgalloc.h

@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_PGALLOC_H
+#define _ALPHA_PGALLOC_H
+
+#include <linux/mm.h>
+#include <linux/mmzone.h>
+
+#include <asm-generic/pgalloc.h>
+
+/*      
+ * Allocate and free page tables. The xxx_kernel() versions are
+ * used to allocate a kernel page table - this turns on ASN bits
+ * if any.
+ */
+
+static inline void
+pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t pte)
+{
+	pmd_set(pmd, (pte_t *)(page_to_pa(pte) + PAGE_OFFSET));
+}
+
+static inline void
+pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte)
+{
+	pmd_set(pmd, pte);
+}
+
+static inline void
+pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
+{
+	pud_set(pud, pmd);
+}
+
+extern pgd_t *pgd_alloc(struct mm_struct *mm);
+
+#endif /* _ALPHA_PGALLOC_H */

arch/alpha/include/asm/pgtable.h

@@ -0,0 +1,346 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ALPHA_PGTABLE_H
+#define _ALPHA_PGTABLE_H
+
+#include <asm-generic/pgtable-nopud.h>
+
+/*
+ * This file contains the functions and defines necessary to modify and use
+ * the Alpha page table tree.
+ *
+ * This hopefully works with any standard Alpha page-size, as defined
+ * in <asm/page.h> (currently 8192).
+ */
+#include <linux/mmzone.h>
+
+#include <asm/page.h>
+#include <asm/processor.h>	/* For TASK_SIZE */
+#include <asm/machvec.h>
+#include <asm/setup.h>
+
+struct mm_struct;
+struct vm_area_struct;
+
+/* Certain architectures need to do special things when PTEs
+ * within a page table are directly modified.  Thus, the following
+ * hook is made available.
+ */
+#define set_pte(pteptr, pteval) ((*(pteptr)) = (pteval))
+#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
+
+/* PMD_SHIFT determines the size of the area a second-level page table can map */
+#define PMD_SHIFT	(PAGE_SHIFT + (PAGE_SHIFT-3))
+#define PMD_SIZE	(1UL << PMD_SHIFT)
+#define PMD_MASK	(~(PMD_SIZE-1))
+
+/* PGDIR_SHIFT determines what a third-level page table entry can map */
+#define PGDIR_SHIFT	(PAGE_SHIFT + 2*(PAGE_SHIFT-3))
+#define PGDIR_SIZE	(1UL << PGDIR_SHIFT)
+#define PGDIR_MASK	(~(PGDIR_SIZE-1))
+
+/*
+ * Entries per page directory level:  the Alpha is three-level, with
+ * all levels having a one-page page table.
+ */
+#define PTRS_PER_PTE	(1UL << (PAGE_SHIFT-3))
+#define PTRS_PER_PMD	(1UL << (PAGE_SHIFT-3))
+#define PTRS_PER_PGD	(1UL << (PAGE_SHIFT-3))
+#define USER_PTRS_PER_PGD	(TASK_SIZE / PGDIR_SIZE)
+
+/* Number of pointers that fit on a page:  this will go away. */
+#define PTRS_PER_PAGE	(1UL << (PAGE_SHIFT-3))
+
+#ifdef CONFIG_ALPHA_LARGE_VMALLOC
+#define VMALLOC_START		0xfffffe0000000000
+#else
+#define VMALLOC_START		(-2*PGDIR_SIZE)
+#endif
+#define VMALLOC_END		(-PGDIR_SIZE)
+
+/*
+ * OSF/1 PAL-code-imposed page table bits
+ */
+#define _PAGE_VALID	0x0001
+#define _PAGE_FOR	0x0002	/* used for page protection (fault on read) */
+#define _PAGE_FOW	0x0004	/* used for page protection (fault on write) */
+#define _PAGE_FOE	0x0008	/* used for page protection (fault on exec) */
+#define _PAGE_ASM	0x0010
+#define _PAGE_KRE	0x0100	/* xxx - see below on the "accessed" bit */
+#define _PAGE_URE	0x0200	/* xxx */
+#define _PAGE_KWE	0x1000	/* used to do the dirty bit in software */
+#define _PAGE_UWE	0x2000	/* used to do the dirty bit in software */
+
+/* .. and these are ours ... */
+#define _PAGE_DIRTY	0x20000
+#define _PAGE_ACCESSED	0x40000
+
+/*
+ * NOTE! The "accessed" bit isn't necessarily exact:  it can be kept exactly
+ * by software (use the KRE/URE/KWE/UWE bits appropriately), but I'll fake it.
+ * Under Linux/AXP, the "accessed" bit just means "read", and I'll just use
+ * the KRE/URE bits to watch for it. That way we don't need to overload the
+ * KWE/UWE bits with both handling dirty and accessed.
+ *
+ * Note that the kernel uses the accessed bit just to check whether to page
+ * out a page or not, so it doesn't have to be exact anyway.
+ */
+
+#define __DIRTY_BITS	(_PAGE_DIRTY | _PAGE_KWE | _PAGE_UWE)
+#define __ACCESS_BITS	(_PAGE_ACCESSED | _PAGE_KRE | _PAGE_URE)
+
+#define _PFN_MASK	0xFFFFFFFF00000000UL
+
+#define _PAGE_TABLE	(_PAGE_VALID | __DIRTY_BITS | __ACCESS_BITS)
+#define _PAGE_CHG_MASK	(_PFN_MASK | __DIRTY_BITS | __ACCESS_BITS)
+
+/*
+ * All the normal masks have the "page accessed" bits on, as any time they are used,
+ * the page is accessed. They are cleared only by the page-out routines
+ */
+#define PAGE_NONE	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOR | _PAGE_FOW | _PAGE_FOE)
+#define PAGE_SHARED	__pgprot(_PAGE_VALID | __ACCESS_BITS)
+#define PAGE_COPY	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
+#define PAGE_READONLY	__pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW)
+#define PAGE_KERNEL	__pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE | _PAGE_KWE)
+
+#define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x))
+
+#define _PAGE_P(x) _PAGE_NORMAL((x) | (((x) & _PAGE_FOW)?0:_PAGE_FOW))
+#define _PAGE_S(x) _PAGE_NORMAL(x)
+
+/*
+ * The hardware can handle write-only mappings, but as the Alpha
+ * architecture does byte-wide writes with a read-modify-write
+ * sequence, it's not practical to have write-without-read privs.
+ * Thus the "-w- -> rw-" and "-wx -> rwx" mapping here (and in
+ * arch/alpha/mm/fault.c)
+ */
+	/* xwr */
+#define __P000	_PAGE_P(_PAGE_FOE | _PAGE_FOW | _PAGE_FOR)
+#define __P001	_PAGE_P(_PAGE_FOE | _PAGE_FOW)
+#define __P010	_PAGE_P(_PAGE_FOE)
+#define __P011	_PAGE_P(_PAGE_FOE)
+#define __P100	_PAGE_P(_PAGE_FOW | _PAGE_FOR)
+#define __P101	_PAGE_P(_PAGE_FOW)
+#define __P110	_PAGE_P(0)
+#define __P111	_PAGE_P(0)
+
+#define __S000	_PAGE_S(_PAGE_FOE | _PAGE_FOW | _PAGE_FOR)
+#define __S001	_PAGE_S(_PAGE_FOE | _PAGE_FOW)
+#define __S010	_PAGE_S(_PAGE_FOE)
+#define __S011	_PAGE_S(_PAGE_FOE)
+#define __S100	_PAGE_S(_PAGE_FOW | _PAGE_FOR)
+#define __S101	_PAGE_S(_PAGE_FOW)
+#define __S110	_PAGE_S(0)
+#define __S111	_PAGE_S(0)
+
+/*
+ * pgprot_noncached() is only for infiniband pci support, and a real
+ * implementation for RAM would be more complicated.
+ */
+#define pgprot_noncached(prot)	(prot)
+
+/*
+ * BAD_PAGETABLE is used when we need a bogus page-table, while
+ * BAD_PAGE is used for a bogus page.
+ *
+ * ZERO_PAGE is a global shared page that is always zero:  used
+ * for zero-mapped memory areas etc..
+ */
+extern pte_t __bad_page(void);
+extern pmd_t * __bad_pagetable(void);
+
+extern unsigned long __zero_page(void);
+
+#define BAD_PAGETABLE	__bad_pagetable()
+#define BAD_PAGE	__bad_page()
+#define ZERO_PAGE(vaddr)	(virt_to_page(ZERO_PGE))
+
+/* number of bits that fit into a memory pointer */
+#define BITS_PER_PTR			(8*sizeof(unsigned long))
+
+/* to align the pointer to a pointer address */
+#define PTR_MASK			(~(sizeof(void*)-1))
+
+/* sizeof(void*)==1<<SIZEOF_PTR_LOG2 */
+#define SIZEOF_PTR_LOG2			3
+
+/* to find an entry in a page-table */
+#define PAGE_PTR(address)		\
+  ((unsigned long)(address)>>(PAGE_SHIFT-SIZEOF_PTR_LOG2)&PTR_MASK&~PAGE_MASK)
+
+/*
+ * On certain platforms whose physical address space can overlap KSEG,
+ * namely EV6 and above, we must re-twiddle the physaddr to restore the
+ * correct high-order bits.
+ *
+ * This is extremely confusing until you realize that this is actually
+ * just working around a userspace bug.  The X server was intending to
+ * provide the physical address but instead provided the KSEG address.
+ * Or tried to, except it's not representable.
+ * 
+ * On Tsunami there's nothing meaningful at 0x40000000000, so this is
+ * a safe thing to do.  Come the first core logic that does put something
+ * in this area -- memory or whathaveyou -- then this hack will have
+ * to go away.  So be prepared!
+ */
+
+#if defined(CONFIG_ALPHA_GENERIC) && defined(USE_48_BIT_KSEG)
+#error "EV6-only feature in a generic kernel"
+#endif
+#if defined(CONFIG_ALPHA_GENERIC) || \
+    (defined(CONFIG_ALPHA_EV6) && !defined(USE_48_BIT_KSEG))
+#define KSEG_PFN	(0xc0000000000UL >> PAGE_SHIFT)
+#define PHYS_TWIDDLE(pfn) \
+  ((((pfn) & KSEG_PFN) == (0x40000000000UL >> PAGE_SHIFT)) \
+  ? ((pfn) ^= KSEG_PFN) : (pfn))
+#else
+#define PHYS_TWIDDLE(pfn) (pfn)
+#endif
+
+/*
+ * Conversion functions:  convert a page and protection to a page entry,
+ * and a page entry and page directory to the page they refer to.
+ */
+#define page_to_pa(page)	(page_to_pfn(page) << PAGE_SHIFT)
+#define pte_pfn(pte)	(pte_val(pte) >> 32)
+
+#define pte_page(pte)	pfn_to_page(pte_pfn(pte))
+#define mk_pte(page, pgprot)						\
+({									\
+	pte_t pte;							\
+									\
+	pte_val(pte) = (page_to_pfn(page) << 32) | pgprot_val(pgprot);	\
+	pte;								\
+})
+
+extern inline pte_t pfn_pte(unsigned long physpfn, pgprot_t pgprot)
+{ pte_t pte; pte_val(pte) = (PHYS_TWIDDLE(physpfn) << 32) | pgprot_val(pgprot); return pte; }
+
+extern inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
+{ pte_val(pte) = (pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot); return pte; }
+
+extern inline void pmd_set(pmd_t * pmdp, pte_t * ptep)
+{ pmd_val(*pmdp) = _PAGE_TABLE | ((((unsigned long) ptep) - PAGE_OFFSET) << (32-PAGE_SHIFT)); }
+
+extern inline void pud_set(pud_t * pudp, pmd_t * pmdp)
+{ pud_val(*pudp) = _PAGE_TABLE | ((((unsigned long) pmdp) - PAGE_OFFSET) << (32-PAGE_SHIFT)); }
+
+
+extern inline unsigned long
+pmd_page_vaddr(pmd_t pmd)
+{
+	return ((pmd_val(pmd) & _PFN_MASK) >> (32-PAGE_SHIFT)) + PAGE_OFFSET;
+}
+
+#define pmd_page(pmd)	(pfn_to_page(pmd_val(pmd) >> 32))
+#define pud_page(pud)	(pfn_to_page(pud_val(pud) >> 32))
+
+extern inline pmd_t *pud_pgtable(pud_t pgd)
+{
+	return (pmd_t *)(PAGE_OFFSET + ((pud_val(pgd) & _PFN_MASK) >> (32-PAGE_SHIFT)));
+}
+
+extern inline int pte_none(pte_t pte)		{ return !pte_val(pte); }
+extern inline int pte_present(pte_t pte)	{ return pte_val(pte) & _PAGE_VALID; }
+extern inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
+{
+	pte_val(*ptep) = 0;
+}
+
+extern inline int pmd_none(pmd_t pmd)		{ return !pmd_val(pmd); }
+extern inline int pmd_bad(pmd_t pmd)		{ return (pmd_val(pmd) & ~_PFN_MASK) != _PAGE_TABLE; }
+extern inline int pmd_present(pmd_t pmd)	{ return pmd_val(pmd) & _PAGE_VALID; }
+extern inline void pmd_clear(pmd_t * pmdp)	{ pmd_val(*pmdp) = 0; }
+
+extern inline int pud_none(pud_t pud)		{ return !pud_val(pud); }
+extern inline int pud_bad(pud_t pud)		{ return (pud_val(pud) & ~_PFN_MASK) != _PAGE_TABLE; }
+extern inline int pud_present(pud_t pud)	{ return pud_val(pud) & _PAGE_VALID; }
+extern inline void pud_clear(pud_t * pudp)	{ pud_val(*pudp) = 0; }
+
+/*
+ * The following only work if pte_present() is true.
+ * Undefined behaviour if not..
+ */
+extern inline int pte_write(pte_t pte)		{ return !(pte_val(pte) & _PAGE_FOW); }
+extern inline int pte_dirty(pte_t pte)		{ return pte_val(pte) & _PAGE_DIRTY; }
+extern inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED; }
+
+extern inline pte_t pte_wrprotect(pte_t pte)	{ pte_val(pte) |= _PAGE_FOW; return pte; }
+extern inline pte_t pte_mkclean(pte_t pte)	{ pte_val(pte) &= ~(__DIRTY_BITS); return pte; }
+extern inline pte_t pte_mkold(pte_t pte)	{ pte_val(pte) &= ~(__ACCESS_BITS); return pte; }
+extern inline pte_t pte_mkwrite(pte_t pte)	{ pte_val(pte) &= ~_PAGE_FOW; return pte; }
+extern inline pte_t pte_mkdirty(pte_t pte)	{ pte_val(pte) |= __DIRTY_BITS; return pte; }
+extern inline pte_t pte_mkyoung(pte_t pte)	{ pte_val(pte) |= __ACCESS_BITS; return pte; }
+
+/*
+ * The smp_rmb() in the following functions are required to order the load of
+ * *dir (the pointer in the top level page table) with any subsequent load of
+ * the returned pmd_t *ret (ret is data dependent on *dir).
+ *
+ * If this ordering is not enforced, the CPU might load an older value of
+ * *ret, which may be uninitialized data. See mm/memory.c:__pte_alloc for
+ * more details.
+ *
+ * Note that we never change the mm->pgd pointer after the task is running, so
+ * pgd_offset does not require such a barrier.
+ */
+
+/* Find an entry in the second-level page table.. */
+extern inline pmd_t * pmd_offset(pud_t * dir, unsigned long address)
+{
+	pmd_t *ret = pud_pgtable(*dir) + ((address >> PMD_SHIFT) & (PTRS_PER_PAGE - 1));
+	smp_rmb(); /* see above */
+	return ret;
+}
+#define pmd_offset pmd_offset
+
+/* Find an entry in the third-level page table.. */
+extern inline pte_t * pte_offset_kernel(pmd_t * dir, unsigned long address)
+{
+	pte_t *ret = (pte_t *) pmd_page_vaddr(*dir)
+		+ ((address >> PAGE_SHIFT) & (PTRS_PER_PAGE - 1));
+	smp_rmb(); /* see above */
+	return ret;
+}
+#define pte_offset_kernel pte_offset_kernel
+
+extern pgd_t swapper_pg_dir[1024];
+
+/*
+ * The Alpha doesn't have any external MMU info:  the kernel page
+ * tables contain all the necessary information.
+ */
+extern inline void update_mmu_cache(struct vm_area_struct * vma,
+	unsigned long address, pte_t *ptep)
+{
+}
+
+/*
+ * Non-present pages:  high 24 bits are offset, next 8 bits type,
+ * low 32 bits zero.
+ */
+extern inline pte_t mk_swap_pte(unsigned long type, unsigned long offset)
+{ pte_t pte; pte_val(pte) = (type << 32) | (offset << 40); return pte; }
+
+#define __swp_type(x)		(((x).val >> 32) & 0xff)
+#define __swp_offset(x)		((x).val >> 40)
+#define __swp_entry(type, off)	((swp_entry_t) { pte_val(mk_swap_pte((type), (off))) })
+#define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) })
+#define __swp_entry_to_pte(x)	((pte_t) { (x).val })
+
+#define kern_addr_valid(addr)	(1)
+
+#define pte_ERROR(e) \
+	printk("%s:%d: bad pte %016lx.\n", __FILE__, __LINE__, pte_val(e))
+#define pmd_ERROR(e) \
+	printk("%s:%d: bad pmd %016lx.\n", __FILE__, __LINE__, pmd_val(e))
+#define pgd_ERROR(e) \
+	printk("%s:%d: bad pgd %016lx.\n", __FILE__, __LINE__, pgd_val(e))
+
+extern void paging_init(void);
+
+/* We have our own get_unmapped_area to cope with ADDR_LIMIT_32BIT.  */
+#define HAVE_ARCH_UNMAPPED_AREA
+
+#endif /* _ALPHA_PGTABLE_H */

arch/alpha/include/asm/processor.h

@@ -0,0 +1,80 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * include/asm-alpha/processor.h
+ *
+ * Copyright (C) 1994 Linus Torvalds
+ */
+
+#ifndef __ASM_ALPHA_PROCESSOR_H
+#define __ASM_ALPHA_PROCESSOR_H
+
+#include <linux/personality.h>	/* for ADDR_LIMIT_32BIT */
+
+/*
+ * We have a 42-bit user address space: 4TB user VM...
+ */
+#define TASK_SIZE (0x40000000000UL)
+
+#define STACK_TOP \
+  (current->personality & ADDR_LIMIT_32BIT ? 0x80000000 : 0x00120000000UL)
+
+#define STACK_TOP_MAX	0x00120000000UL
+
+/* This decides where the kernel will search for a free chunk of vm
+ * space during mmap's.
+ */
+#define TASK_UNMAPPED_BASE \
+  ((current->personality & ADDR_LIMIT_32BIT) ? 0x40000000 : TASK_SIZE / 2)
+
+typedef struct {
+	unsigned long seg;
+} mm_segment_t;
+
+/* This is dead.  Everything has been moved to thread_info.  */
+struct thread_struct { };
+#define INIT_THREAD  { }
+
+/* Do necessary setup to start up a newly executed thread.  */
+struct pt_regs;
+extern void start_thread(struct pt_regs *, unsigned long, unsigned long);
+
+/* Free all resources held by a thread. */
+struct task_struct;
+extern void release_thread(struct task_struct *);
+
+unsigned long __get_wchan(struct task_struct *p);
+
+#define KSTK_EIP(tsk) (task_pt_regs(tsk)->pc)
+
+#define KSTK_ESP(tsk) \
+  ((tsk) == current ? rdusp() : task_thread_info(tsk)->pcb.usp)
+
+#define cpu_relax()	barrier()
+
+#define ARCH_HAS_PREFETCH
+#define ARCH_HAS_PREFETCHW
+#define ARCH_HAS_SPINLOCK_PREFETCH
+
+#ifndef CONFIG_SMP
+/* Nothing to prefetch. */
+#define spin_lock_prefetch(lock)  	do { } while (0)
+#endif
+
+extern inline void prefetch(const void *ptr)  
+{ 
+	__builtin_prefetch(ptr, 0, 3);
+}
+
+extern inline void prefetchw(const void *ptr)  
+{
+	__builtin_prefetch(ptr, 1, 3);
+}
+
+#ifdef CONFIG_SMP
+extern inline void spin_lock_prefetch(const void *ptr)  
+{
+	__builtin_prefetch(ptr, 1, 3);
+}
+#endif
+
+#endif /* __ASM_ALPHA_PROCESSOR_H */

arch/alpha/include/asm/ptrace.h

@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASMAXP_PTRACE_H
+#define _ASMAXP_PTRACE_H
+
+#include <uapi/asm/ptrace.h>
+
+
+#define arch_has_single_step()		(1)
+#define user_mode(regs) (((regs)->ps & 8) != 0)
+#define instruction_pointer(regs) ((regs)->pc)
+#define profile_pc(regs) instruction_pointer(regs)
+#define current_user_stack_pointer() rdusp()
+
+#define task_pt_regs(task) \
+  ((struct pt_regs *) (task_stack_page(task) + 2*PAGE_SIZE) - 1)
+
+#define current_pt_regs() \
+  ((struct pt_regs *) ((char *)current_thread_info() + 2*PAGE_SIZE) - 1)
+#define signal_pt_regs current_pt_regs
+
+#define force_successful_syscall_return() (current_pt_regs()->r0 = 0)
+
+static inline unsigned long regs_return_value(struct pt_regs *regs)
+{
+	return regs->r0;
+}
+
+#endif

arch/alpha/include/asm/rwonce.h

@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019 Google LLC.
+ */
+#ifndef __ASM_RWONCE_H
+#define __ASM_RWONCE_H
+
+#ifdef CONFIG_SMP
+
+#include <asm/barrier.h>
+
+/*
+ * Alpha is apparently daft enough to reorder address-dependent loads
+ * on some CPU implementations. Knock some common sense into it with
+ * a memory barrier in READ_ONCE().
+ *
+ * For the curious, more information about this unusual reordering is
+ * available in chapter 15 of the "perfbook":
+ *
+ *  https://kernel.org/pub/linux/kernel/people/paulmck/perfbook/perfbook.html
+ *
+ */
+#define __READ_ONCE(x)							\
+({									\
+	__unqual_scalar_typeof(x) __x =					\
+		(*(volatile typeof(__x) *)(&(x)));			\
+	mb();								\
+	(typeof(x))__x;							\
+})
+
+#endif /* CONFIG_SMP */
+
+#include <asm-generic/rwonce.h>
+
+#endif /* __ASM_RWONCE_H */

arch/alpha/include/asm/serial.h

@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * include/asm-alpha/serial.h
+ */
+
+
+/*
+ * This assumes you have a 1.8432 MHz clock for your UART.
+ *
+ * It'd be nice if someone built a serial card with a 24.576 MHz
+ * clock, since the 16550A is capable of handling a top speed of 1.5
+ * megabits/second; but this requires the faster clock.
+ */
+#define BASE_BAUD ( 1843200 / 16 )
+
+/* Standard COM flags (except for COM4, because of the 8514 problem) */
+#ifdef CONFIG_SERIAL_8250_DETECT_IRQ
+#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ)
+#define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF | UPF_AUTO_IRQ)
+#else
+#define STD_COM_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST)
+#define STD_COM4_FLAGS UPF_BOOT_AUTOCONF
+#endif
+
+#define SERIAL_PORT_DFNS			\
+	/* UART CLK   PORT IRQ     FLAGS        */			\
+	{ 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS },	/* ttyS0 */	\
+	{ 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS },	/* ttyS1 */	\
+	{ 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS },	/* ttyS2 */	\
+	{ 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS },	/* ttyS3 */

arch/alpha/include/asm/setup.h

@@ -0,0 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef __ALPHA_SETUP_H
+#define __ALPHA_SETUP_H
+
+#include <uapi/asm/setup.h>
+
+/*
+ * We leave one page for the initial stack page, and one page for
+ * the initial process structure. Also, the console eats 3 MB for
+ * the initial bootloader (one of which we can reclaim later).
+ */
+#define BOOT_PCB	0x20000000
+#define BOOT_ADDR	0x20000000
+/* Remove when official MILO sources have ELF support: */
+#define BOOT_SIZE	(16*1024)
+
+#ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS
+#define KERNEL_START_PHYS	0x300000 /* Old bootloaders hardcoded this.  */
+#else
+#define KERNEL_START_PHYS	0x1000000 /* required: Wildfire/Titan/Marvel */
+#endif
+
+#define KERNEL_START	(PAGE_OFFSET+KERNEL_START_PHYS)
+#define SWAPPER_PGD	KERNEL_START
+#define INIT_STACK	(PAGE_OFFSET+KERNEL_START_PHYS+0x02000)
+#define EMPTY_PGT	(PAGE_OFFSET+KERNEL_START_PHYS+0x04000)
+#define EMPTY_PGE	(PAGE_OFFSET+KERNEL_START_PHYS+0x08000)
+#define ZERO_PGE	(PAGE_OFFSET+KERNEL_START_PHYS+0x0A000)
+
+#define START_ADDR	(PAGE_OFFSET+KERNEL_START_PHYS+0x10000)
+
+/*
+ * This is setup by the secondary bootstrap loader.  Because
+ * the zero page is zeroed out as soon as the vm system is
+ * initialized, we need to copy things out into a more permanent
+ * place.
+ */
+#define PARAM			ZERO_PGE
+#define COMMAND_LINE		((char *)(absolute_pointer(PARAM + 0x0000)))
+#define INITRD_START		(*(unsigned long *) (PARAM+0x100))
+#define INITRD_SIZE		(*(unsigned long *) (PARAM+0x108))
+
+#endif

arch/alpha/include/asm/sfp-machine.h

@@ -0,0 +1,82 @@
+/* Machine-dependent software floating-point definitions.
+   Alpha kernel version.
+   Copyright (C) 1997,1998,1999 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Richard Henderson (rth@cygnus.com),
+		  Jakub Jelinek (jakub@redhat.com) and
+		  David S. Miller (davem@redhat.com).
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If
+   not, write to the Free Software Foundation, Inc.,
+   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifndef _SFP_MACHINE_H
+#define _SFP_MACHINE_H
+   
+#define _FP_W_TYPE_SIZE		64
+#define _FP_W_TYPE		unsigned long
+#define _FP_WS_TYPE		signed long
+#define _FP_I_TYPE		long
+
+#define _FP_MUL_MEAT_S(R,X,Y)					\
+  _FP_MUL_MEAT_1_imm(_FP_WFRACBITS_S,R,X,Y)
+#define _FP_MUL_MEAT_D(R,X,Y)					\
+  _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_Q(R,X,Y)					\
+  _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+#define _FP_DIV_MEAT_S(R,X,Y)	_FP_DIV_MEAT_1_imm(S,R,X,Y,_FP_DIV_HELP_imm)
+#define _FP_DIV_MEAT_D(R,X,Y)	_FP_DIV_MEAT_1_udiv(D,R,X,Y)
+#define _FP_DIV_MEAT_Q(R,X,Y)	_FP_DIV_MEAT_2_udiv(Q,R,X,Y)
+
+#define _FP_NANFRAC_S		_FP_QNANBIT_S
+#define _FP_NANFRAC_D		_FP_QNANBIT_D
+#define _FP_NANFRAC_Q		_FP_QNANBIT_Q
+#define _FP_NANSIGN_S		1
+#define _FP_NANSIGN_D		1
+#define _FP_NANSIGN_Q		1
+
+#define _FP_KEEPNANFRACP 1
+
+/* Alpha Architecture Handbook, 4.7.10.4 sais that
+ * we should prefer any type of NaN in Fb, then Fa.
+ */
+#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP)			\
+  do {								\
+    R##_s = Y##_s;						\
+    _FP_FRAC_COPY_##wc(R,X);					\
+    R##_c = FP_CLS_NAN;						\
+  } while (0)
+
+/* Obtain the current rounding mode. */
+#define FP_ROUNDMODE	mode
+#define FP_RND_NEAREST	(FPCR_DYN_NORMAL >> FPCR_DYN_SHIFT)
+#define FP_RND_ZERO	(FPCR_DYN_CHOPPED >> FPCR_DYN_SHIFT)
+#define FP_RND_PINF	(FPCR_DYN_PLUS >> FPCR_DYN_SHIFT)
+#define FP_RND_MINF	(FPCR_DYN_MINUS >> FPCR_DYN_SHIFT)
+
+/* Exception flags. */
+#define FP_EX_INVALID		IEEE_TRAP_ENABLE_INV
+#define FP_EX_OVERFLOW		IEEE_TRAP_ENABLE_OVF
+#define FP_EX_UNDERFLOW		IEEE_TRAP_ENABLE_UNF
+#define FP_EX_DIVZERO		IEEE_TRAP_ENABLE_DZE
+#define FP_EX_INEXACT		IEEE_TRAP_ENABLE_INE
+#define FP_EX_DENORM		IEEE_TRAP_ENABLE_DNO
+
+#define FP_DENORM_ZERO		(swcr & IEEE_MAP_DMZ)
+
+/* We write the results always */
+#define FP_INHIBIT_RESULTS 0
+
+#endif

arch/alpha/include/asm/shmparam.h

@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASMAXP_SHMPARAM_H
+#define _ASMAXP_SHMPARAM_H
+
+#define	SHMLBA PAGE_SIZE		 /* attach addr a multiple of this */
+
+#endif /* _ASMAXP_SHMPARAM_H */

arch/alpha/include/asm/signal.h

@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASMAXP_SIGNAL_H
+#define _ASMAXP_SIGNAL_H
+
+#include <uapi/asm/signal.h>
+
+/* Digital Unix defines 64 signals.  Most things should be clean enough
+   to redefine this at will, if care is taken to make libc match.  */
+
+#define _NSIG		64
+#define _NSIG_BPW	64
+#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
+
+typedef unsigned long old_sigset_t;		/* at least 32 bits */
+
+typedef struct {
+	unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
+struct osf_sigaction {
+	__sighandler_t	sa_handler;
+	old_sigset_t	sa_mask;
+	int		sa_flags;
+};
+
+#define __ARCH_HAS_KA_RESTORER
+#include <asm/sigcontext.h>
+#endif

arch/alpha/include/asm/smp.h

@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_SMP_H
+#define __ASM_SMP_H
+
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <linux/bitops.h>
+#include <asm/pal.h>
+
+/* HACK: Cabrio WHAMI return value is bogus if more than 8 bits used.. :-( */
+
+static __inline__ unsigned char
+__hard_smp_processor_id(void)
+{
+	register unsigned char __r0 __asm__("$0");
+	__asm__ __volatile__(
+		"call_pal %1 #whami"
+		: "=r"(__r0)
+		:"i" (PAL_whami)
+		: "$1", "$22", "$23", "$24", "$25");
+	return __r0;
+}
+
+#ifdef CONFIG_SMP
+
+#include <asm/irq.h>
+
+struct cpuinfo_alpha {
+	unsigned long loops_per_jiffy;
+	unsigned long last_asn;
+	int need_new_asn;
+	int asn_lock;
+	unsigned long ipi_count;
+	unsigned long prof_multiplier;
+	unsigned long prof_counter;
+	unsigned char mcheck_expected;
+	unsigned char mcheck_taken;
+	unsigned char mcheck_extra;
+} __attribute__((aligned(64)));
+
+extern struct cpuinfo_alpha cpu_data[NR_CPUS];
+
+#define hard_smp_processor_id()	__hard_smp_processor_id()
+#define raw_smp_processor_id()	(current_thread_info()->cpu)
+
+extern int smp_num_cpus;
+
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
+
+#else /* CONFIG_SMP */
+
+#define hard_smp_processor_id()		0
+#define smp_call_function_on_cpu(func,info,wait,cpu)    ({ 0; })
+
+#endif /* CONFIG_SMP */
+
+#define NO_PROC_ID	(-1)
+
+#endif

arch/alpha/include/asm/socket.h

@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_SOCKET_H
+#define _ASM_SOCKET_H
+
+#include <uapi/asm/socket.h>
+
+/* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
+ * have to define SOCK_NONBLOCK to a different value here.
+ */
+#define SOCK_NONBLOCK	0x40000000
+#endif /* _ASM_SOCKET_H */