forked from Qortal/Brooklyn
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
131 lines
2.9 KiB
C
131 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* linux/arch/m68k/mm/init.c
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*
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* Copyright (C) 1995 Hamish Macdonald
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*
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* Contains common initialization routines, specific init code moved
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* to motorola.c and sun3mmu.c
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*/
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#include <linux/module.h>
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#include <linux/signal.h>
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#include <linux/sched.h>
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#include <linux/mm.h>
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#include <linux/swap.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/memblock.h>
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#include <linux/gfp.h>
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#include <asm/setup.h>
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#include <linux/uaccess.h>
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#include <asm/page.h>
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#include <asm/pgalloc.h>
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#include <asm/traps.h>
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#include <asm/machdep.h>
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#include <asm/io.h>
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#ifdef CONFIG_ATARI
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#include <asm/atari_stram.h>
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#endif
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#include <asm/sections.h>
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#include <asm/tlb.h>
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/*
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* ZERO_PAGE is a special page that is used for zero-initialized
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* data and COW.
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*/
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void *empty_zero_page;
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EXPORT_SYMBOL(empty_zero_page);
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#ifdef CONFIG_MMU
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int m68k_virt_to_node_shift;
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void __init m68k_setup_node(int node)
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{
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node_set_online(node);
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}
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#else /* CONFIG_MMU */
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/*
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* paging_init() continues the virtual memory environment setup which
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* was begun by the code in arch/head.S.
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* The parameters are pointers to where to stick the starting and ending
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* addresses of available kernel virtual memory.
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*/
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void __init paging_init(void)
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{
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/*
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* Make sure start_mem is page aligned, otherwise bootmem and
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* page_alloc get different views of the world.
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*/
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unsigned long end_mem = memory_end & PAGE_MASK;
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unsigned long max_zone_pfn[MAX_NR_ZONES] = { 0, };
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high_memory = (void *) end_mem;
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empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
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if (!empty_zero_page)
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panic("%s: Failed to allocate %lu bytes align=0x%lx\n",
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__func__, PAGE_SIZE, PAGE_SIZE);
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max_zone_pfn[ZONE_DMA] = end_mem >> PAGE_SHIFT;
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free_area_init(max_zone_pfn);
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}
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#endif /* CONFIG_MMU */
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void free_initmem(void)
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{
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#ifndef CONFIG_MMU_SUN3
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free_initmem_default(-1);
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#endif /* CONFIG_MMU_SUN3 */
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}
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#if defined(CONFIG_MMU) && !defined(CONFIG_COLDFIRE)
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#define VECTORS &vectors[0]
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#else
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#define VECTORS _ramvec
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#endif
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static inline void init_pointer_tables(void)
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{
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#if defined(CONFIG_MMU) && !defined(CONFIG_SUN3) && !defined(CONFIG_COLDFIRE)
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int i, j;
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/* insert pointer tables allocated so far into the tablelist */
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init_pointer_table(kernel_pg_dir, TABLE_PGD);
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for (i = 0; i < PTRS_PER_PGD; i++) {
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pud_t *pud = (pud_t *)&kernel_pg_dir[i];
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pmd_t *pmd_dir;
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if (!pud_present(*pud))
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continue;
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pmd_dir = (pmd_t *)pgd_page_vaddr(kernel_pg_dir[i]);
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init_pointer_table(pmd_dir, TABLE_PMD);
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for (j = 0; j < PTRS_PER_PMD; j++) {
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pmd_t *pmd = &pmd_dir[j];
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pte_t *pte_dir;
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if (!pmd_present(*pmd))
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continue;
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pte_dir = (pte_t *)pmd_page_vaddr(*pmd);
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init_pointer_table(pte_dir, TABLE_PTE);
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}
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}
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#endif
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}
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void __init mem_init(void)
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{
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/* this will put all memory onto the freelists */
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memblock_free_all();
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init_pointer_tables();
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}
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