mirror of
https://github.com/Qortal/Brooklyn.git
synced 2025-02-15 19:55:53 +00:00
7d3018da4c
* NVME, SATA NAND Security added * Qortal Core exception fetcher is now redone. * Update DT overlays for firmware * Fix for bvb clockj settings * Fix for no audio for sissy desktop porn watchers -_- ( thanks crowetic for watching gay porn and reporting me that bug asshat ) * Normalize the fetch() stream while doing a peer to peer handshake for nodes * Fix for RNG token editing error while performing a SHA256 encryption * Now under voltage errors will blink red led constantly for 5 minutes then go solid. * Improve kernel thread scaling for Qortal 2.0 core * HDMI circuit is now enabled at power up instead. * Added KMS * Added line replication instead of interpolation for VC4 GPU resulting in slightly better frame rates * Fix for long and doubles * Backplane clock is now set at standard rate * Capped HVEC clocks * Add support for Creative Cinema webcam for donkers who like sharing dick pics. *looks at crowetic* * More scanline XGA modes for people who have weird ass monitors of all sorts. * TX/RX flow control support is now 100% stable. No lags over 1Gbps ethernet. ( Hello Qortal 3.0 ) * Using flush cache instead of fetch for QC 2.0 resulting in performance gains * VC4 clock is now enforced for desktop oriented images. * Ondemand governor now waits for 2 seconds instead of 0.5ms to scale down to the lowest safest clock freq preventing lags to the core. * Timeout of OC set at 35ms from 90ms resulting in way better clocks and sync for Qortal 2.0 core
169 lines
4.1 KiB
C
169 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* include/asm-m68k/processor.h
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*
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* Copyright (C) 1995 Hamish Macdonald
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*/
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#ifndef __ASM_M68K_PROCESSOR_H
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#define __ASM_M68K_PROCESSOR_H
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#include <linux/thread_info.h>
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#include <asm/fpu.h>
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#include <asm/ptrace.h>
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static inline unsigned long rdusp(void)
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{
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#ifdef CONFIG_COLDFIRE_SW_A7
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extern unsigned int sw_usp;
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return sw_usp;
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#else
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register unsigned long usp __asm__("a0");
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/* move %usp,%a0 */
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__asm__ __volatile__(".word 0x4e68" : "=a" (usp));
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return usp;
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#endif
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}
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static inline void wrusp(unsigned long usp)
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{
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#ifdef CONFIG_COLDFIRE_SW_A7
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extern unsigned int sw_usp;
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sw_usp = usp;
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#else
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register unsigned long a0 __asm__("a0") = usp;
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/* move %a0,%usp */
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__asm__ __volatile__(".word 0x4e60" : : "a" (a0) );
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#endif
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}
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/*
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* User space process size: 3.75GB. This is hardcoded into a few places,
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* so don't change it unless you know what you are doing.
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*/
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#ifdef CONFIG_MMU
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#if defined(CONFIG_COLDFIRE)
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#define TASK_SIZE (0xC0000000UL)
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#elif defined(CONFIG_SUN3)
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#define TASK_SIZE (0x0E000000UL)
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#else
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#define TASK_SIZE (0xF0000000UL)
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#endif
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#else
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#define TASK_SIZE (0xFFFFFFFFUL)
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#endif
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#ifdef __KERNEL__
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#define STACK_TOP TASK_SIZE
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#define STACK_TOP_MAX STACK_TOP
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#endif
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/* This decides where the kernel will search for a free chunk of vm
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* space during mmap's.
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*/
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#ifdef CONFIG_MMU
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#if defined(CONFIG_COLDFIRE)
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#define TASK_UNMAPPED_BASE 0x60000000UL
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#elif defined(CONFIG_SUN3)
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#define TASK_UNMAPPED_BASE 0x0A000000UL
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#else
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#define TASK_UNMAPPED_BASE 0xC0000000UL
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#endif
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#define TASK_UNMAPPED_ALIGN(addr, off) PAGE_ALIGN(addr)
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#else
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#define TASK_UNMAPPED_BASE 0
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#endif
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/* Address spaces (or Function Codes in Motorola lingo) */
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#define USER_DATA 1
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#define USER_PROGRAM 2
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#define SUPER_DATA 5
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#define SUPER_PROGRAM 6
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#define CPU_SPACE 7
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#ifdef CONFIG_CPU_HAS_ADDRESS_SPACES
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/*
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* Set the SFC/DFC registers for special MM operations. For most normal
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* operation these remain set to USER_DATA for the uaccess routines.
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*/
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static inline void set_fc(unsigned long val)
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{
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WARN_ON_ONCE(in_interrupt());
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__asm__ __volatile__ ("movec %0,%/sfc\n\t"
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"movec %0,%/dfc\n\t"
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: /* no outputs */ : "r" (val) : "memory");
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}
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#else
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static inline void set_fc(unsigned long val)
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{
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}
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#endif /* CONFIG_CPU_HAS_ADDRESS_SPACES */
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struct thread_struct {
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unsigned long ksp; /* kernel stack pointer */
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unsigned long usp; /* user stack pointer */
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unsigned short sr; /* saved status register */
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unsigned short fc; /* saved fc (sfc, dfc) */
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unsigned long crp[2]; /* cpu root pointer */
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unsigned long esp0; /* points to SR of stack frame */
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unsigned long faddr; /* info about last fault */
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int signo, code;
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unsigned long fp[8*3];
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unsigned long fpcntl[3]; /* fp control regs */
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unsigned char fpstate[FPSTATESIZE]; /* floating point state */
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};
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#define INIT_THREAD { \
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.ksp = sizeof(init_stack) + (unsigned long) init_stack, \
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.sr = PS_S, \
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.fc = USER_DATA, \
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}
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/*
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* ColdFire stack format sbould be 0x4 for an aligned usp (will always be
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* true on thread creation). We need to set this explicitly.
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*/
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#ifdef CONFIG_COLDFIRE
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#define setframeformat(_regs) do { (_regs)->format = 0x4; } while(0)
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#else
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#define setframeformat(_regs) do { } while (0)
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#endif
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/*
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* Do necessary setup to start up a newly executed thread.
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*/
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static inline void start_thread(struct pt_regs * regs, unsigned long pc,
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unsigned long usp)
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{
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regs->pc = pc;
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regs->sr &= ~0x2000;
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setframeformat(regs);
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wrusp(usp);
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}
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/* Forward declaration, a strange C thing */
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struct task_struct;
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/* Free all resources held by a thread. */
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static inline void release_thread(struct task_struct *dead_task)
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{
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}
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unsigned long get_wchan(struct task_struct *p);
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#define KSTK_EIP(tsk) \
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({ \
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unsigned long eip = 0; \
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if ((tsk)->thread.esp0 > PAGE_SIZE && \
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(virt_addr_valid((tsk)->thread.esp0))) \
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eip = ((struct pt_regs *) (tsk)->thread.esp0)->pc; \
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eip; })
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#define KSTK_ESP(tsk) ((tsk) == current ? rdusp() : (tsk)->thread.usp)
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#define task_pt_regs(tsk) ((struct pt_regs *) ((tsk)->thread.esp0))
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#define cpu_relax() barrier()
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#endif
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