![Mike Rapoport](/assets/img/avatar_default.png)
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>
216 lines
5.6 KiB
C
216 lines
5.6 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1998-2003 Hewlett-Packard Co
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* David Mosberger-Tang <davidm@hpl.hp.com>
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* Stephane Eranian <eranian@hpl.hp.com>
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* Copyright (C) 2000, Rohit Seth <rohit.seth@intel.com>
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* Copyright (C) 1999 VA Linux Systems
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* Copyright (C) 1999 Walt Drummond <drummond@valinux.com>
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* Copyright (C) 2003 Silicon Graphics, Inc. All rights reserved.
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*
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* Routines used by ia64 machines with contiguous (or virtually contiguous)
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* memory.
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*/
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#include <linux/efi.h>
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#include <linux/memblock.h>
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#include <linux/mm.h>
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#include <linux/nmi.h>
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#include <linux/swap.h>
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#include <asm/meminit.h>
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#include <asm/pgalloc.h>
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#include <asm/pgtable.h>
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#include <asm/sections.h>
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#include <asm/mca.h>
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#ifdef CONFIG_VIRTUAL_MEM_MAP
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static unsigned long max_gap;
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#endif
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/* physical address where the bootmem map is located */
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unsigned long bootmap_start;
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#ifdef CONFIG_SMP
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static void *cpu_data;
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/**
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* per_cpu_init - setup per-cpu variables
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*
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* Allocate and setup per-cpu data areas.
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*/
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void *per_cpu_init(void)
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{
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static bool first_time = true;
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void *cpu0_data = __cpu0_per_cpu;
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unsigned int cpu;
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if (!first_time)
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goto skip;
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first_time = false;
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/*
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* get_free_pages() cannot be used before cpu_init() done.
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* BSP allocates PERCPU_PAGE_SIZE bytes for all possible CPUs
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* to avoid that AP calls get_zeroed_page().
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*/
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for_each_possible_cpu(cpu) {
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void *src = cpu == 0 ? cpu0_data : __phys_per_cpu_start;
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memcpy(cpu_data, src, __per_cpu_end - __per_cpu_start);
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__per_cpu_offset[cpu] = (char *)cpu_data - __per_cpu_start;
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per_cpu(local_per_cpu_offset, cpu) = __per_cpu_offset[cpu];
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/*
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* percpu area for cpu0 is moved from the __init area
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* which is setup by head.S and used till this point.
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* Update ar.k3. This move is ensures that percpu
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* area for cpu0 is on the correct node and its
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* virtual address isn't insanely far from other
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* percpu areas which is important for congruent
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* percpu allocator.
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*/
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if (cpu == 0)
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ia64_set_kr(IA64_KR_PER_CPU_DATA, __pa(cpu_data) -
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(unsigned long)__per_cpu_start);
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cpu_data += PERCPU_PAGE_SIZE;
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}
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skip:
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return __per_cpu_start + __per_cpu_offset[smp_processor_id()];
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}
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static inline void
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alloc_per_cpu_data(void)
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{
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cpu_data = memblock_alloc_from(PERCPU_PAGE_SIZE * num_possible_cpus(),
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PERCPU_PAGE_SIZE,
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__pa(MAX_DMA_ADDRESS));
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}
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/**
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* setup_per_cpu_areas - setup percpu areas
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*
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* Arch code has already allocated and initialized percpu areas. All
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* this function has to do is to teach the determined layout to the
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* dynamic percpu allocator, which happens to be more complex than
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* creating whole new ones using helpers.
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*/
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void __init
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setup_per_cpu_areas(void)
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{
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struct pcpu_alloc_info *ai;
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struct pcpu_group_info *gi;
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unsigned int cpu;
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ssize_t static_size, reserved_size, dyn_size;
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int rc;
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ai = pcpu_alloc_alloc_info(1, num_possible_cpus());
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if (!ai)
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panic("failed to allocate pcpu_alloc_info");
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gi = &ai->groups[0];
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/* units are assigned consecutively to possible cpus */
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for_each_possible_cpu(cpu)
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gi->cpu_map[gi->nr_units++] = cpu;
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/* set parameters */
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static_size = __per_cpu_end - __per_cpu_start;
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reserved_size = PERCPU_MODULE_RESERVE;
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dyn_size = PERCPU_PAGE_SIZE - static_size - reserved_size;
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if (dyn_size < 0)
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panic("percpu area overflow static=%zd reserved=%zd\n",
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static_size, reserved_size);
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ai->static_size = static_size;
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ai->reserved_size = reserved_size;
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ai->dyn_size = dyn_size;
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ai->unit_size = PERCPU_PAGE_SIZE;
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ai->atom_size = PAGE_SIZE;
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ai->alloc_size = PERCPU_PAGE_SIZE;
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rc = pcpu_setup_first_chunk(ai, __per_cpu_start + __per_cpu_offset[0]);
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if (rc)
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panic("failed to setup percpu area (err=%d)", rc);
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pcpu_free_alloc_info(ai);
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}
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#else
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#define alloc_per_cpu_data() do { } while (0)
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#endif /* CONFIG_SMP */
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/**
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* find_memory - setup memory map
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*
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* Walk the EFI memory map and find usable memory for the system, taking
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* into account reserved areas.
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*/
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void __init
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find_memory (void)
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{
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reserve_memory();
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/* first find highest page frame number */
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min_low_pfn = ~0UL;
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max_low_pfn = 0;
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efi_memmap_walk(find_max_min_low_pfn, NULL);
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max_pfn = max_low_pfn;
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#ifdef CONFIG_VIRTUAL_MEM_MAP
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efi_memmap_walk(filter_memory, register_active_ranges);
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#else
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memblock_add_node(0, PFN_PHYS(max_low_pfn), 0);
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#endif
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find_initrd();
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alloc_per_cpu_data();
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}
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/*
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* Set up the page tables.
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*/
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void __init
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paging_init (void)
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{
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unsigned long max_dma;
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unsigned long max_zone_pfns[MAX_NR_ZONES];
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memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
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#ifdef CONFIG_ZONE_DMA32
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max_dma = virt_to_phys((void *) MAX_DMA_ADDRESS) >> PAGE_SHIFT;
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max_zone_pfns[ZONE_DMA32] = max_dma;
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#endif
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max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
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#ifdef CONFIG_VIRTUAL_MEM_MAP
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efi_memmap_walk(find_largest_hole, (u64 *)&max_gap);
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if (max_gap < LARGE_GAP) {
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vmem_map = (struct page *) 0;
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} else {
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unsigned long map_size;
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/* allocate virtual_mem_map */
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map_size = PAGE_ALIGN(ALIGN(max_low_pfn, MAX_ORDER_NR_PAGES) *
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sizeof(struct page));
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VMALLOC_END -= map_size;
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vmem_map = (struct page *) VMALLOC_END;
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efi_memmap_walk(create_mem_map_page_table, NULL);
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/*
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* alloc_node_mem_map makes an adjustment for mem_map
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* which isn't compatible with vmem_map.
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*/
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NODE_DATA(0)->node_mem_map = vmem_map +
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find_min_pfn_with_active_regions();
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printk("Virtual mem_map starts at 0x%p\n", mem_map);
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}
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#endif /* !CONFIG_VIRTUAL_MEM_MAP */
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free_area_init_nodes(max_zone_pfns);
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zero_page_memmap_ptr = virt_to_page(ia64_imva(empty_zero_page));
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}
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