57c8a661d9
Move remaining definitions and declarations from include/linux/bootmem.h into include/linux/memblock.h and remove the redundant header. The includes were replaced with the semantic patch below and then semi-automated removal of duplicated '#include <linux/memblock.h> @@ @@ - #include <linux/bootmem.h> + #include <linux/memblock.h> [sfr@canb.auug.org.au: dma-direct: fix up for the removal of linux/bootmem.h] Link: http://lkml.kernel.org/r/20181002185342.133d1680@canb.auug.org.au [sfr@canb.auug.org.au: powerpc: fix up for removal of linux/bootmem.h] Link: http://lkml.kernel.org/r/20181005161406.73ef8727@canb.auug.org.au [sfr@canb.auug.org.au: x86/kaslr, ACPI/NUMA: fix for linux/bootmem.h removal] Link: http://lkml.kernel.org/r/20181008190341.5e396491@canb.auug.org.au Link: http://lkml.kernel.org/r/1536927045-23536-30-git-send-email-rppt@linux.vnet.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.vnet.ibm.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Ingo Molnar <mingo@redhat.com> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Jonas Bonn <jonas@southpole.se> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Ley Foon Tan <lftan@altera.com> Cc: Mark Salter <msalter@redhat.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Paul Burton <paul.burton@mips.com> Cc: Richard Kuo <rkuo@codeaurora.org> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Serge Semin <fancer.lancer@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
97 lines
2.6 KiB
C
97 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* linux/arch/m68k/mm/sun3mmu.c
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*
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* Implementations of mm routines specific to the sun3 MMU.
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*
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* Moved here 8/20/1999 Sam Creasey
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*
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*/
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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 <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/pgtable.h>
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#include <asm/machdep.h>
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#include <asm/io.h>
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extern void mmu_emu_init (unsigned long bootmem_end);
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const char bad_pmd_string[] = "Bad pmd in pte_alloc: %08lx\n";
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extern unsigned long num_pages;
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/* For the sun3 we try to follow the i386 paging_init() more closely */
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/* start_mem and end_mem have PAGE_OFFSET added already */
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/* now sets up tables using sun3 PTEs rather than i386 as before. --m */
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void __init paging_init(void)
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{
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pgd_t * pg_dir;
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pte_t * pg_table;
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int i;
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unsigned long address;
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unsigned long next_pgtable;
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unsigned long bootmem_end;
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unsigned long zones_size[MAX_NR_ZONES] = { 0, };
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unsigned long size;
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empty_zero_page = memblock_alloc(PAGE_SIZE, PAGE_SIZE);
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address = PAGE_OFFSET;
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pg_dir = swapper_pg_dir;
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memset (swapper_pg_dir, 0, sizeof (swapper_pg_dir));
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memset (kernel_pg_dir, 0, sizeof (kernel_pg_dir));
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size = num_pages * sizeof(pte_t);
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size = (size + PAGE_SIZE) & ~(PAGE_SIZE-1);
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next_pgtable = (unsigned long)memblock_alloc(size, PAGE_SIZE);
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bootmem_end = (next_pgtable + size + PAGE_SIZE) & PAGE_MASK;
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/* Map whole memory from PAGE_OFFSET (0x0E000000) */
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pg_dir += PAGE_OFFSET >> PGDIR_SHIFT;
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while (address < (unsigned long)high_memory) {
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pg_table = (pte_t *) __pa (next_pgtable);
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next_pgtable += PTRS_PER_PTE * sizeof (pte_t);
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pgd_val(*pg_dir) = (unsigned long) pg_table;
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pg_dir++;
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/* now change pg_table to kernel virtual addresses */
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pg_table = (pte_t *) __va ((unsigned long) pg_table);
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for (i=0; i<PTRS_PER_PTE; ++i, ++pg_table) {
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pte_t pte = pfn_pte(virt_to_pfn(address), PAGE_INIT);
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if (address >= (unsigned long)high_memory)
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pte_val (pte) = 0;
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set_pte (pg_table, pte);
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address += PAGE_SIZE;
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}
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}
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mmu_emu_init(bootmem_end);
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current->mm = NULL;
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/* memory sizing is a hack stolen from motorola.c.. hope it works for us */
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zones_size[ZONE_DMA] = ((unsigned long)high_memory - PAGE_OFFSET) >> PAGE_SHIFT;
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/* I really wish I knew why the following change made things better... -- Sam */
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/* free_area_init(zones_size); */
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free_area_init_node(0, zones_size,
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(__pa(PAGE_OFFSET) >> PAGE_SHIFT) + 1, NULL);
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}
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