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![Kefeng Wang](/assets/img/avatar_default.png)
mem_init_print_info() is called in mem_init() on each architecture, and pass NULL argument, so using void argument and move it into mm_init(). Link: https://lkml.kernel.org/r/20210317015210.33641-1-wangkefeng.wang@huawei.com Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Acked-by: Dave Hansen <dave.hansen@linux.intel.com> [x86] Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr> [powerpc] Acked-by: David Hildenbrand <david@redhat.com> Tested-by: Anatoly Pugachev <matorola@gmail.com> [sparc64] Acked-by: Russell King <rmk+kernel@armlinux.org.uk> [arm] Acked-by: Mike Rapoport <rppt@linux.ibm.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Richard Henderson <rth@twiddle.net> Cc: Guo Ren <guoren@kernel.org> Cc: Yoshinori Sato <ysato@users.osdn.me> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Jonas Bonn <jonas@southpole.se> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: "Peter Zijlstra" <peterz@infradead.org> Cc: Ingo Molnar <mingo@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
156 lines
3.5 KiB
C
156 lines
3.5 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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#ifdef CONFIG_DISCONTIGMEM
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pg_data_t pg_data_map[MAX_NUMNODES];
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EXPORT_SYMBOL(pg_data_map);
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pg_data_t *pg_data_table[65];
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EXPORT_SYMBOL(pg_data_table);
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#endif
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void __init m68k_setup_node(int node)
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{
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#ifdef CONFIG_DISCONTIGMEM
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struct m68k_mem_info *info = m68k_memory + node;
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int i, end;
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i = (unsigned long)phys_to_virt(info->addr) >> __virt_to_node_shift();
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end = (unsigned long)phys_to_virt(info->addr + info->size - 1) >> __virt_to_node_shift();
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for (; i <= end; i++) {
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if (pg_data_table[i])
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pr_warn("overlap at %u for chunk %u\n", i, node);
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pg_data_table[i] = pg_data_map + node;
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}
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#endif
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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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/*
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* Set up SFC/DFC registers (user data space).
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*/
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set_fs (USER_DS);
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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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