mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-20 02:07:40 +07:00
20b4fb4852
Pull VFS updates from Al Viro,
Misc cleanups all over the place, mainly wrt /proc interfaces (switch
create_proc_entry to proc_create(), get rid of the deprecated
create_proc_read_entry() in favor of using proc_create_data() and
seq_file etc).
7kloc removed.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits)
don't bother with deferred freeing of fdtables
proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h
proc: Make the PROC_I() and PDE() macros internal to procfs
proc: Supply a function to remove a proc entry by PDE
take cgroup_open() and cpuset_open() to fs/proc/base.c
ppc: Clean up scanlog
ppc: Clean up rtas_flash driver somewhat
hostap: proc: Use remove_proc_subtree()
drm: proc: Use remove_proc_subtree()
drm: proc: Use minor->index to label things, not PDE->name
drm: Constify drm_proc_list[]
zoran: Don't print proc_dir_entry data in debug
reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show()
proc: Supply an accessor for getting the data from a PDE's parent
airo: Use remove_proc_subtree()
rtl8192u: Don't need to save device proc dir PDE
rtl8187se: Use a dir under /proc/net/r8180/
proc: Add proc_mkdir_data()
proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h}
proc: Move PDE_NET() to fs/proc/proc_net.c
...
133 lines
3.7 KiB
C
133 lines
3.7 KiB
C
/*
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* arch/score/mm/init.c
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*
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* Score Processor version.
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*
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* Copyright (C) 2009 Sunplus Core Technology Co., Ltd.
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* Lennox Wu <lennox.wu@sunplusct.com>
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* Chen Liqin <liqin.chen@sunplusct.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see the file COPYING, or write
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* to the Free Software Foundation, Inc.,
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* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/errno.h>
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#include <linux/bootmem.h>
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#include <linux/kernel.h>
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#include <linux/gfp.h>
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#include <linux/init.h>
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#include <linux/mm.h>
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#include <linux/mman.h>
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#include <linux/pagemap.h>
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#include <linux/kcore.h>
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#include <linux/sched.h>
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#include <linux/initrd.h>
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#include <asm/sections.h>
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#include <asm/tlb.h>
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unsigned long empty_zero_page;
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EXPORT_SYMBOL_GPL(empty_zero_page);
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static struct kcore_list kcore_mem, kcore_vmalloc;
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static void setup_zero_page(void)
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{
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struct page *page;
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empty_zero_page = __get_free_pages(GFP_KERNEL | __GFP_ZERO, 0);
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if (!empty_zero_page)
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panic("Oh boy, that early out of memory?");
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page = virt_to_page((void *) empty_zero_page);
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mark_page_reserved(page);
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}
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#ifndef CONFIG_NEED_MULTIPLE_NODES
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int page_is_ram(unsigned long pagenr)
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{
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if (pagenr >= min_low_pfn && pagenr < max_low_pfn)
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return 1;
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else
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return 0;
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}
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void __init paging_init(void)
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{
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unsigned long max_zone_pfns[MAX_NR_ZONES];
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unsigned long lastpfn;
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pagetable_init();
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max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
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lastpfn = max_low_pfn;
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free_area_init_nodes(max_zone_pfns);
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}
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void __init mem_init(void)
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{
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unsigned long codesize, reservedpages, datasize, initsize;
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unsigned long tmp, ram = 0;
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high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
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totalram_pages += free_all_bootmem();
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setup_zero_page(); /* Setup zeroed pages. */
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reservedpages = 0;
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for (tmp = 0; tmp < max_low_pfn; tmp++)
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if (page_is_ram(tmp)) {
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ram++;
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if (PageReserved(pfn_to_page(tmp)))
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reservedpages++;
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}
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num_physpages = ram;
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codesize = (unsigned long) &_etext - (unsigned long) &_text;
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datasize = (unsigned long) &_edata - (unsigned long) &_etext;
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initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
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printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, "
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"%ldk reserved, %ldk data, %ldk init, %ldk highmem)\n",
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(unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
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ram << (PAGE_SHIFT-10), codesize >> 10,
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reservedpages << (PAGE_SHIFT-10), datasize >> 10,
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initsize >> 10,
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totalhigh_pages << (PAGE_SHIFT-10));
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}
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#endif /* !CONFIG_NEED_MULTIPLE_NODES */
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#ifdef CONFIG_BLK_DEV_INITRD
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void free_initrd_mem(unsigned long start, unsigned long end)
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{
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free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd");
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}
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#endif
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void __init_refok free_initmem(void)
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{
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free_initmem_default(POISON_FREE_INITMEM);
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}
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unsigned long pgd_current;
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#define __page_aligned(order) __attribute__((__aligned__(PAGE_SIZE<<order)))
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/*
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* gcc 3.3 and older have trouble determining that PTRS_PER_PGD and PGD_ORDER
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* are constants. So we use the variants from asm-offset.h until that gcc
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* will officially be retired.
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*/
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pgd_t swapper_pg_dir[PTRS_PER_PGD] __page_aligned(PTE_ORDER);
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pte_t invalid_pte_table[PTRS_PER_PTE] __page_aligned(PTE_ORDER);
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