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Merge branch 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

Browse Source 
* 'core-memblock-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (74 commits)
  x86-64: Only set max_pfn_mapped to 512 MiB if we enter via head_64.S
  xen: Cope with unmapped pages when initializing kernel pagetable
  memblock, bootmem: Round pfn properly for memory and reserved regions
  memblock: Annotate memblock functions with __init_memblock
  memblock: Allow memblock_init to be called early
  memblock/arm: Fix memblock_region_is_memory() typo
  x86, memblock: Remove __memblock_x86_find_in_range_size()
  memblock: Fix wraparound in find_region()
  x86-32, memblock: Make add_highpages honor early reserved ranges
  x86, memblock: Fix crashkernel allocation
  arm, memblock: Fix the sparsemem build
  memblock: Fix section mismatch warnings
  powerpc, memblock: Fix memblock API change fallout
  memblock, microblaze: Fix memblock API change fallout
  x86: Remove old bootmem code
  x86, memblock: Use memblock_memory_size()/memblock_free_memory_size() to get correct dma_reserve
  x86: Remove not used early_res code
  x86, memblock: Replace e820_/_early string with memblock_
  x86: Use memblock to replace early_res
  x86, memblock: Use memblock_debug to control debug message print out
  ...

Fix up trivial conflicts in arch/x86/kernel/setup.c and kernel/Makefile
This commit is contained in:
Linus Torvalds
2010-10-21 18:52:11 -07:00
parent b5153163ed 67e87f0a1c
commit 3044100e58
69 changed files with 1675 additions and 1739 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
arch/arm/mm/init.c
View File

@@ -150,6 +150,7 @@ static void __init find_limits(struct meminfo *mi,
static void __init arm_bootmem_init(struct meminfo *mi,
unsigned long start_pfn, unsigned long end_pfn)
{
struct memblock_region *reg;
unsigned int boot_pages;
phys_addr_t bitmap;
pg_data_t *pgdat;
@@ -180,13 +181,13 @@ static void __init arm_bootmem_init(struct meminfo *mi,
/*
* Reserve the memblock reserved regions in bootmem.
*/
for (i = 0; i < memblock.reserved.cnt; i++) {
phys_addr_t start = memblock_start_pfn(&memblock.reserved, i);
if (start >= start_pfn &&
memblock_end_pfn(&memblock.reserved, i) <= end_pfn)
for_each_memblock(reserved, reg) {
phys_addr_t start = memblock_region_reserved_base_pfn(reg);
phys_addr_t end = memblock_region_reserved_end_pfn(reg);
if (start >= start_pfn && end <= end_pfn)
reserve_bootmem_node(pgdat, __pfn_to_phys(start),
memblock_size_bytes(&memblock.reserved, i),
BOOTMEM_DEFAULT);
(end - start) << PAGE_SHIFT,
BOOTMEM_DEFAULT);
}
}
@@ -237,20 +238,7 @@ static void __init arm_bootmem_free(struct meminfo *mi, unsigned long min,
#ifndef CONFIG_SPARSEMEM
int pfn_valid(unsigned long pfn)
{
struct memblock_region *mem = &memblock.memory;
unsigned int left = 0, right = mem->cnt;
do {
unsigned int mid = (right + left) / 2;
if (pfn < memblock_start_pfn(mem, mid))
right = mid;
else if (pfn >= memblock_end_pfn(mem, mid))
left = mid + 1;
else
return 1;
} while (left < right);
return 0;
return memblock_is_memory(pfn << PAGE_SHIFT);
}
EXPORT_SYMBOL(pfn_valid);
@@ -260,10 +248,11 @@ static void arm_memory_present(void)
#else
static void arm_memory_present(void)
{
int i;
for (i = 0; i < memblock.memory.cnt; i++)
memory_present(0, memblock_start_pfn(&memblock.memory, i),
memblock_end_pfn(&memblock.memory, i));
struct memblock_region *reg;
for_each_memblock(memory, reg)
memory_present(0, memblock_region_memory_base_pfn(reg),
memblock_region_memory_end_pfn(reg));
}
#endif

6
arch/arm/plat-omap/fb.c
View File

@@ -173,11 +173,7 @@ static int check_fbmem_region(int region_idx, struct omapfb_mem_region *rg,
static int valid_sdram(unsigned long addr, unsigned long size)
{
struct memblock_property res;
res.base = addr;
res.size = size;
return !memblock_find(&res) && res.base == addr && res.size == size;
return memblock_is_region_memory(addr, size);
}
static int reserve_sdram(unsigned long addr, unsigned long size)

3
arch/microblaze/include/asm/memblock.h
View File

@@ -9,9 +9,6 @@
#ifndef _ASM_MICROBLAZE_MEMBLOCK_H
#define _ASM_MICROBLAZE_MEMBLOCK_H
/* MEMBLOCK limit is OFF */
#define MEMBLOCK_REAL_LIMIT 0xFFFFFFFF
#endif /* _ASM_MICROBLAZE_MEMBLOCK_H */

30
arch/microblaze/mm/init.c
View File

@@ -70,16 +70,16 @@ static void __init paging_init(void)
void __init setup_memory(void)
{
int i;
unsigned long map_size;
struct memblock_region *reg;
#ifndef CONFIG_MMU
u32 kernel_align_start, kernel_align_size;
/* Find main memory where is the kernel */
for (i = 0; i < memblock.memory.cnt; i++) {
memory_start = (u32) memblock.memory.region[i].base;
memory_end = (u32) memblock.memory.region[i].base
+ (u32) memblock.memory.region[i].size;
for_each_memblock(memory, reg) {
memory_start = (u32)reg->base;
memory_end = (u32) reg->base + reg->size;
if ((memory_start <= (u32)_text) &&
((u32)_text <= memory_end)) {
memory_size = memory_end - memory_start;
@@ -142,12 +142,10 @@ void __init setup_memory(void)
free_bootmem(memory_start, memory_size);
/* reserve allocate blocks */
for (i = 0; i < memblock.reserved.cnt; i++) {
pr_debug("reserved %d - 0x%08x-0x%08x\n", i,
(u32) memblock.reserved.region[i].base,
(u32) memblock_size_bytes(&memblock.reserved, i));
reserve_bootmem(memblock.reserved.region[i].base,
memblock_size_bytes(&memblock.reserved, i) - 1, BOOTMEM_DEFAULT);
for_each_memblock(reserved, reg) {
pr_debug("reserved - 0x%08x-0x%08x\n",
(u32) reg->base, (u32) reg->size);
reserve_bootmem(reg->base, reg->size, BOOTMEM_DEFAULT);
}
#ifdef CONFIG_MMU
init_bootmem_done = 1;
@@ -230,7 +228,7 @@ static void mm_cmdline_setup(void)
if (maxmem && memory_size > maxmem) {
memory_size = maxmem;
memory_end = memory_start + memory_size;
memblock.memory.region[0].size = memory_size;
memblock.memory.regions[0].size = memory_size;
}
}
}
@@ -273,14 +271,14 @@ asmlinkage void __init mmu_init(void)
machine_restart(NULL);
}
if ((u32) memblock.memory.region[0].size < 0x1000000) {
if ((u32) memblock.memory.regions[0].size < 0x1000000) {
printk(KERN_EMERG "Memory must be greater than 16MB\n");
machine_restart(NULL);
}
/* Find main memory where the kernel is */
memory_start = (u32) memblock.memory.region[0].base;
memory_end = (u32) memblock.memory.region[0].base +
(u32) memblock.memory.region[0].size;
memory_start = (u32) memblock.memory.regions[0].base;
memory_end = (u32) memblock.memory.regions[0].base +
(u32) memblock.memory.regions[0].size;
memory_size = memory_end - memory_start;
mm_cmdline_setup(); /* FIXME parse args from command line - not used */

7
arch/powerpc/include/asm/memblock.h
View File

@@ -5,11 +5,4 @@
#define MEMBLOCK_DBG(fmt...) udbg_printf(fmt)
#ifdef CONFIG_PPC32
extern phys_addr_t lowmem_end_addr;
#define MEMBLOCK_REAL_LIMIT lowmem_end_addr
#else
#define MEMBLOCK_REAL_LIMIT 0
#endif
#endif /* _ASM_POWERPC_MEMBLOCK_H */

12
arch/powerpc/include/asm/mmu.h
View File

@@ -2,6 +2,8 @@
#define _ASM_POWERPC_MMU_H_
#ifdef __KERNEL__
#include <linux/types.h>
#include <asm/asm-compat.h>
#include <asm/feature-fixups.h>
@@ -82,6 +84,16 @@ extern unsigned int __start___mmu_ftr_fixup, __stop___mmu_ftr_fixup;
extern void early_init_mmu(void);
extern void early_init_mmu_secondary(void);
extern void setup_initial_memory_limit(phys_addr_t first_memblock_base,
phys_addr_t first_memblock_size);
#ifdef CONFIG_PPC64
/* This is our real memory area size on ppc64 server, on embedded, we
* make it match the size our of bolted TLB area
*/
extern u64 ppc64_rma_size;
#endif /* CONFIG_PPC64 */
#endif /* !__ASSEMBLY__ */
/* The kernel use the constants below to index in the page sizes array.

6
arch/powerpc/kernel/head_40x.S
View File

@@ -923,11 +923,7 @@ initial_mmu:
mtspr SPRN_PID,r0
sync
/* Configure and load two entries into TLB slots 62 and 63.
* In case we are pinning TLBs, these are reserved in by the
* other TLB functions. If not reserving, then it doesn't
* matter where they are loaded.
*/
/* Configure and load one entry into TLB slots 63 */
clrrwi r4,r4,10 /* Mask off the real page number */
ori r4,r4,(TLB_WR | TLB_EX) /* Set the write and execute bits */

2
arch/powerpc/kernel/paca.c
View File

@@ -127,7 +127,7 @@ void __init allocate_pacas(void)
* the first segment. On iSeries they must be within the area mapped
* by the HV, which is HvPagesToMap * HVPAGESIZE bytes.
*/
limit = min(0x10000000ULL, memblock.rmo_size);
limit = min(0x10000000ULL, ppc64_rma_size);
if (firmware_has_feature(FW_FEATURE_ISERIES))
limit = min(limit, HvPagesToMap * HVPAGESIZE);

15
arch/powerpc/kernel/prom.c
View File

@@ -66,6 +66,7 @@
int __initdata iommu_is_off;
int __initdata iommu_force_on;
unsigned long tce_alloc_start, tce_alloc_end;
u64 ppc64_rma_size;
#endif
static int __init early_parse_mem(char *p)
@@ -98,7 +99,7 @@ static void __init move_device_tree(void)
if ((memory_limit && (start + size) > memory_limit) ||
overlaps_crashkernel(start, size)) {
p = __va(memblock_alloc_base(size, PAGE_SIZE, memblock.rmo_size));
p = __va(memblock_alloc(size, PAGE_SIZE));
memcpy(p, initial_boot_params, size);
initial_boot_params = (struct boot_param_header *)p;
DBG("Moved device tree to 0x%p\n", p);
@@ -492,7 +493,7 @@ static int __init early_init_dt_scan_memory_ppc(unsigned long node,
void __init early_init_dt_add_memory_arch(u64 base, u64 size)
{
#if defined(CONFIG_PPC64)
#ifdef CONFIG_PPC64
if (iommu_is_off) {
if (base >= 0x80000000ul)
return;
@@ -501,9 +502,13 @@ void __init early_init_dt_add_memory_arch(u64 base, u64 size)
}
#endif
memblock_add(base, size);
/* First MEMBLOCK added, do some special initializations */
if (memstart_addr == ~(phys_addr_t)0)
setup_initial_memory_limit(base, size);
memstart_addr = min((u64)memstart_addr, base);
/* Add the chunk to the MEMBLOCK list */
memblock_add(base, size);
}
u64 __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
@@ -655,7 +660,6 @@ static void __init phyp_dump_reserve_mem(void)
static inline void __init phyp_dump_reserve_mem(void) {}
#endif /* CONFIG_PHYP_DUMP && CONFIG_PPC_RTAS */
void __init early_init_devtree(void *params)
{
phys_addr_t limit;
@@ -683,6 +687,7 @@ void __init early_init_devtree(void *params)
/* Scan memory nodes and rebuild MEMBLOCKs */
memblock_init();
of_scan_flat_dt(early_init_dt_scan_root, NULL);
of_scan_flat_dt(early_init_dt_scan_memory_ppc, NULL);

2
arch/powerpc/kernel/rtas.c
View File

@@ -969,7 +969,7 @@ void __init rtas_initialize(void)
*/
#ifdef CONFIG_PPC64
if (machine_is(pseries) && firmware_has_feature(FW_FEATURE_LPAR)) {
rtas_region = min(memblock.rmo_size, RTAS_INSTANTIATE_MAX);
rtas_region = min(ppc64_rma_size, RTAS_INSTANTIATE_MAX);
ibm_suspend_me_token = rtas_token("ibm,suspend-me");
}
#endif

2
arch/powerpc/kernel/setup_32.c
View File

@@ -246,7 +246,7 @@ static void __init irqstack_early_init(void)
unsigned int i;
/* interrupt stacks must be in lowmem, we get that for free on ppc32
* as the memblock is limited to lowmem by MEMBLOCK_REAL_LIMIT */
* as the memblock is limited to lowmem by default */
for_each_possible_cpu(i) {
softirq_ctx[i] = (struct thread_info *)
__va(memblock_alloc(THREAD_SIZE, THREAD_SIZE));

2
arch/powerpc/kernel/setup_64.c
View File

@@ -486,7 +486,7 @@ static void __init emergency_stack_init(void)
* bringup, we need to get at them in real mode. This means they
* must also be within the RMO region.
*/
limit = min(slb0_limit(), memblock.rmo_size);
limit = min(slb0_limit(), ppc64_rma_size);
for_each_possible_cpu(i) {
unsigned long sp;

17
arch/powerpc/mm/40x_mmu.c
View File

@@ -35,6 +35,7 @@
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/highmem.h>
#include <linux/memblock.h>
#include <asm/pgalloc.h>
#include <asm/prom.h>
@@ -47,6 +48,7 @@
#include <asm/bootx.h>
#include <asm/machdep.h>
#include <asm/setup.h>
#include "mmu_decl.h"
extern int __map_without_ltlbs;
@@ -139,8 +141,19 @@ unsigned long __init mmu_mapin_ram(unsigned long top)
* coverage with normal-sized pages (or other reasons) do not
* attempt to allocate outside the allowed range.
*/
__initial_memory_limit_addr = memstart_addr + mapped;
memblock_set_current_limit(mapped);
return mapped;
}
void setup_initial_memory_limit(phys_addr_t first_memblock_base,
phys_addr_t first_memblock_size)
{
/* We don't currently support the first MEMBLOCK not mapping 0
* physical on those processors
*/
BUG_ON(first_memblock_base != 0);
/* 40x can only access 16MB at the moment (see head_40x.S) */
memblock_set_current_limit(min_t(u64, first_memblock_size, 0x00800000));
}

14
arch/powerpc/mm/44x_mmu.c
View File

@@ -24,6 +24,8 @@
*/
#include <linux/init.h>
#include <linux/memblock.h>
#include <asm/mmu.h>
#include <asm/system.h>
#include <asm/page.h>
@@ -213,6 +215,18 @@ unsigned long __init mmu_mapin_ram(unsigned long top)
return total_lowmem;
}
void setup_initial_memory_limit(phys_addr_t first_memblock_base,
phys_addr_t first_memblock_size)
{
/* We don't currently support the first MEMBLOCK not mapping 0
* physical on those processors
*/
BUG_ON(first_memblock_base != 0);
/* 44x has a 256M TLB entry pinned at boot */
memblock_set_current_limit(min_t(u64, first_memblock_size, PPC_PIN_SIZE));
}
#ifdef CONFIG_SMP
void __cpuinit mmu_init_secondary(int cpu)
{

12
arch/powerpc/mm/fsl_booke_mmu.c
View File

@@ -40,6 +40,7 @@
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/highmem.h>
#include <linux/memblock.h>
#include <asm/pgalloc.h>
#include <asm/prom.h>
@@ -213,5 +214,14 @@ void __init adjust_total_lowmem(void)
pr_cont("%lu Mb, residual: %dMb\n", tlbcam_sz(tlbcam_index - 1) >> 20,
(unsigned int)((total_lowmem - __max_low_memory) >> 20));
__initial_memory_limit_addr = memstart_addr + __max_low_memory;
memblock_set_current_limit(memstart_addr + __max_low_memory);
}
void setup_initial_memory_limit(phys_addr_t first_memblock_base,
phys_addr_t first_memblock_size)
{
phys_addr_t limit = first_memblock_base + first_memblock_size;
/* 64M mapped initially according to head_fsl_booke.S */
memblock_set_current_limit(min_t(u64, limit, 0x04000000));
}

35
arch/powerpc/mm/hash_utils_64.c
View File

@@ -588,7 +588,7 @@ static void __init htab_initialize(void)
unsigned long pteg_count;
unsigned long prot;
unsigned long base = 0, size = 0, limit;
int i;
struct memblock_region *reg;
DBG(" -> htab_initialize()\n");
@@ -625,7 +625,7 @@ static void __init htab_initialize(void)
if (machine_is(cell))
limit = 0x80000000;
else
limit = 0;
limit = MEMBLOCK_ALLOC_ANYWHERE;
table = memblock_alloc_base(htab_size_bytes, htab_size_bytes, limit);
@@ -649,7 +649,7 @@ static void __init htab_initialize(void)
#ifdef CONFIG_DEBUG_PAGEALLOC
linear_map_hash_count = memblock_end_of_DRAM() >> PAGE_SHIFT;
linear_map_hash_slots = __va(memblock_alloc_base(linear_map_hash_count,
1, memblock.rmo_size));
1, ppc64_rma_size));
memset(linear_map_hash_slots, 0, linear_map_hash_count);
#endif /* CONFIG_DEBUG_PAGEALLOC */
@@ -659,9 +659,9 @@ static void __init htab_initialize(void)
*/
/* create bolted the linear mapping in the hash table */
for (i=0; i < memblock.memory.cnt; i++) {
base = (unsigned long)__va(memblock.memory.region[i].base);
size = memblock.memory.region[i].size;
for_each_memblock(memory, reg) {
base = (unsigned long)__va(reg->base);
size = reg->size;
DBG("creating mapping for region: %lx..%lx (prot: %lx)\n",
base, size, prot);
@@ -696,7 +696,8 @@ static void __init htab_initialize(void)
#endif /* CONFIG_U3_DART */
BUG_ON(htab_bolt_mapping(base, base + size, __pa(base),
prot, mmu_linear_psize, mmu_kernel_ssize));
}
}
memblock_set_current_limit(MEMBLOCK_ALLOC_ANYWHERE);
/*
* If we have a memory_limit and we've allocated TCEs then we need to
@@ -1247,3 +1248,23 @@ void kernel_map_pages(struct page *page, int numpages, int enable)
local_irq_restore(flags);
}
#endif /* CONFIG_DEBUG_PAGEALLOC */
void setup_initial_memory_limit(phys_addr_t first_memblock_base,
phys_addr_t first_memblock_size)
{
/* We don't currently support the first MEMBLOCK not mapping 0
* physical on those processors
*/
BUG_ON(first_memblock_base != 0);
/* On LPAR systems, the first entry is our RMA region,
* non-LPAR 64-bit hash MMU systems don't have a limitation
* on real mode access, but using the first entry works well
* enough. We also clamp it to 1G to avoid some funky things
* such as RTAS bugs etc...
*/
ppc64_rma_size = min_t(u64, first_memblock_size, 0x40000000);
/* Finally limit subsequent allocations */
memblock_set_current_limit(ppc64_rma_size);
}

43
arch/powerpc/mm/init_32.c
View File

@@ -91,12 +91,6 @@ int __allow_ioremap_reserved;
/* max amount of low RAM to map in */
unsigned long __max_low_memory = MAX_LOW_MEM;
/*
* address of the limit of what is accessible with initial MMU setup -
* 256MB usually, but only 16MB on 601.
*/
phys_addr_t __initial_memory_limit_addr = (phys_addr_t)0x10000000;
/*
* Check for command-line options that affect what MMU_init will do.
*/
@@ -126,13 +120,6 @@ void __init MMU_init(void)
if (ppc_md.progress)
ppc_md.progress("MMU:enter", 0x111);
/* 601 can only access 16MB at the moment */
if (PVR_VER(mfspr(SPRN_PVR)) == 1)
__initial_memory_limit_addr = 0x01000000;
/* 8xx can only access 8MB at the moment */
if (PVR_VER(mfspr(SPRN_PVR)) == 0x50)
__initial_memory_limit_addr = 0x00800000;
/* parse args from command line */
MMU_setup();
@@ -190,20 +177,18 @@ void __init MMU_init(void)
#ifdef CONFIG_BOOTX_TEXT
btext_unmap();
#endif
/* Shortly after that, the entire linear mapping will be available */
memblock_set_current_limit(lowmem_end_addr);
}
/* This is only called until mem_init is done. */
void __init *early_get_page(void)
{
void *p;
if (init_bootmem_done) {
p = alloc_bootmem_pages(PAGE_SIZE);
} else {
p = __va(memblock_alloc_base(PAGE_SIZE, PAGE_SIZE,
__initial_memory_limit_addr));
}
return p;
if (init_bootmem_done)
return alloc_bootmem_pages(PAGE_SIZE);
else
return __va(memblock_alloc(PAGE_SIZE, PAGE_SIZE));
}
/* Free up now-unused memory */
@@ -252,3 +237,17 @@ void free_initrd_mem(unsigned long start, unsigned long end)
}
#endif
#ifdef CONFIG_8xx /* No 8xx specific .c file to put that in ... */
void setup_initial_memory_limit(phys_addr_t first_memblock_base,
phys_addr_t first_memblock_size)
{
/* We don't currently support the first MEMBLOCK not mapping 0
* physical on those processors
*/
BUG_ON(first_memblock_base != 0);
/* 8xx can only access 8MB at the moment */
memblock_set_current_limit(min_t(u64, first_memblock_size, 0x00800000));
}
#endif /* CONFIG_8xx */

1
arch/powerpc/mm/init_64.c
View File

@@ -330,3 +330,4 @@ int __meminit vmemmap_populate(struct page *start_page,
return 0;
}
#endif /* CONFIG_SPARSEMEM_VMEMMAP */

92
arch/powerpc/mm/mem.c
View File

@@ -82,18 +82,11 @@ int page_is_ram(unsigned long pfn)
return pfn < max_pfn;
#else
unsigned long paddr = (pfn << PAGE_SHIFT);
int i;
for (i=0; i < memblock.memory.cnt; i++) {
unsigned long base;
struct memblock_region *reg;
base = memblock.memory.region[i].base;
if ((paddr >= base) &&
(paddr < (base + memblock.memory.region[i].size))) {
for_each_memblock(memory, reg)
if (paddr >= reg->base && paddr < (reg->base + reg->size))
return 1;
}
}
return 0;
#endif
}
@@ -149,23 +142,19 @@ int
walk_system_ram_range(unsigned long start_pfn, unsigned long nr_pages,
void *arg, int (*func)(unsigned long, unsigned long, void *))
{
struct memblock_property res;
unsigned long pfn, len;
u64 end;
struct memblock_region *reg;
unsigned long end_pfn = start_pfn + nr_pages;
unsigned long tstart, tend;
int ret = -1;
res.base = (u64) start_pfn << PAGE_SHIFT;
res.size = (u64) nr_pages << PAGE_SHIFT;
end = res.base + res.size - 1;
while ((res.base < end) && (memblock_find(&res) >= 0)) {
pfn = (unsigned long)(res.base >> PAGE_SHIFT);
len = (unsigned long)(res.size >> PAGE_SHIFT);
ret = (*func)(pfn, len, arg);
for_each_memblock(memory, reg) {
tstart = max(start_pfn, memblock_region_memory_base_pfn(reg));
tend = min(end_pfn, memblock_region_memory_end_pfn(reg));
if (tstart >= tend)
continue;
ret = (*func)(tstart, tend - tstart, arg);
if (ret)
break;
res.base += (res.size + 1);
res.size = (end - res.base + 1);
}
return ret;
}
@@ -179,9 +168,9 @@ EXPORT_SYMBOL_GPL(walk_system_ram_range);
#ifndef CONFIG_NEED_MULTIPLE_NODES
void __init do_init_bootmem(void)
{
unsigned long i;
unsigned long start, bootmap_pages;
unsigned long total_pages;
struct memblock_region *reg;
int boot_mapsize;
max_low_pfn = max_pfn = memblock_end_of_DRAM() >> PAGE_SHIFT;
@@ -204,10 +193,10 @@ void __init do_init_bootmem(void)
boot_mapsize = init_bootmem_node(NODE_DATA(0), start >> PAGE_SHIFT, min_low_pfn, max_low_pfn);
/* Add active regions with valid PFNs */
for (i = 0; i < memblock.memory.cnt; i++) {
for_each_memblock(memory, reg) {
unsigned long start_pfn, end_pfn;
start_pfn = memblock.memory.region[i].base >> PAGE_SHIFT;
end_pfn = start_pfn + memblock_size_pages(&memblock.memory, i);
start_pfn = memblock_region_memory_base_pfn(reg);
end_pfn = memblock_region_memory_end_pfn(reg);
add_active_range(0, start_pfn, end_pfn);
}
@@ -218,29 +207,21 @@ void __init do_init_bootmem(void)
free_bootmem_with_active_regions(0, lowmem_end_addr >> PAGE_SHIFT);
/* reserve the sections we're already using */
for (i = 0; i < memblock.reserved.cnt; i++) {
unsigned long addr = memblock.reserved.region[i].base +
memblock_size_bytes(&memblock.reserved, i) - 1;
if (addr < lowmem_end_addr)
reserve_bootmem(memblock.reserved.region[i].base,
memblock_size_bytes(&memblock.reserved, i),
BOOTMEM_DEFAULT);
else if (memblock.reserved.region[i].base < lowmem_end_addr) {
unsigned long adjusted_size = lowmem_end_addr -
memblock.reserved.region[i].base;
reserve_bootmem(memblock.reserved.region[i].base,
adjusted_size, BOOTMEM_DEFAULT);
for_each_memblock(reserved, reg) {
unsigned long top = reg->base + reg->size - 1;
if (top < lowmem_end_addr)
reserve_bootmem(reg->base, reg->size, BOOTMEM_DEFAULT);
else if (reg->base < lowmem_end_addr) {
unsigned long trunc_size = lowmem_end_addr - reg->base;
reserve_bootmem(reg->base, trunc_size, BOOTMEM_DEFAULT);
}
}
#else
free_bootmem_with_active_regions(0, max_pfn);
/* reserve the sections we're already using */
for (i = 0; i < memblock.reserved.cnt; i++)
reserve_bootmem(memblock.reserved.region[i].base,
memblock_size_bytes(&memblock.reserved, i),
BOOTMEM_DEFAULT);
for_each_memblock(reserved, reg)
reserve_bootmem(reg->base, reg->size, BOOTMEM_DEFAULT);
#endif
/* XXX need to clip this if using highmem? */
sparse_memory_present_with_active_regions(0);
@@ -251,22 +232,15 @@ void __init do_init_bootmem(void)
/* mark pages that don't exist as nosave */
static int __init mark_nonram_nosave(void)
{
unsigned long memblock_next_region_start_pfn,
memblock_region_max_pfn;
int i;
struct memblock_region *reg, *prev = NULL;
for (i = 0; i < memblock.memory.cnt - 1; i++) {
memblock_region_max_pfn =
(memblock.memory.region[i].base >> PAGE_SHIFT) +
(memblock.memory.region[i].size >> PAGE_SHIFT);
memblock_next_region_start_pfn =
memblock.memory.region[i+1].base >> PAGE_SHIFT;
if (memblock_region_max_pfn < memblock_next_region_start_pfn)
register_nosave_region(memblock_region_max_pfn,
memblock_next_region_start_pfn);
for_each_memblock(memory, reg) {
if (prev &&
memblock_region_memory_end_pfn(prev) < memblock_region_memory_base_pfn(reg))
register_nosave_region(memblock_region_memory_end_pfn(prev),
memblock_region_memory_base_pfn(reg));
prev = reg;
}
return 0;
}
@@ -327,7 +301,7 @@ void __init mem_init(void)
swiotlb_init(1);
#endif
num_physpages = memblock.memory.size >> PAGE_SHIFT;
num_physpages = memblock_phys_mem_size() >> PAGE_SHIFT;
high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
#ifdef CONFIG_NEED_MULTIPLE_NODES

17
arch/powerpc/mm/numa.c
View File

@@ -802,16 +802,17 @@ static void __init setup_nonnuma(void)
unsigned long top_of_ram = memblock_end_of_DRAM();
unsigned long total_ram = memblock_phys_mem_size();
unsigned long start_pfn, end_pfn;
unsigned int i, nid = 0;
unsigned int nid = 0;
struct memblock_region *reg;
printk(KERN_DEBUG "Top of RAM: 0x%lx, Total RAM: 0x%lx\n",
top_of_ram, total_ram);
printk(KERN_DEBUG "Memory hole size: %ldMB\n",
(top_of_ram - total_ram) >> 20);
for (i = 0; i < memblock.memory.cnt; ++i) {
start_pfn = memblock.memory.region[i].base >> PAGE_SHIFT;
end_pfn = start_pfn + memblock_size_pages(&memblock.memory, i);
for_each_memblock(memory, reg) {
start_pfn = memblock_region_memory_base_pfn(reg);
end_pfn = memblock_region_memory_end_pfn(reg);
fake_numa_create_new_node(end_pfn, &nid);
add_active_range(nid, start_pfn, end_pfn);
@@ -947,11 +948,11 @@ static struct notifier_block __cpuinitdata ppc64_numa_nb = {
static void mark_reserved_regions_for_nid(int nid)
{
struct pglist_data *node = NODE_DATA(nid);
int i;
struct memblock_region *reg;
for (i = 0; i < memblock.reserved.cnt; i++) {
unsigned long physbase = memblock.reserved.region[i].base;
unsigned long size = memblock.reserved.region[i].size;
for_each_memblock(reserved, reg) {
unsigned long physbase = reg->base;
unsigned long size = reg->size;
unsigned long start_pfn = physbase >> PAGE_SHIFT;
unsigned long end_pfn = PFN_UP(physbase + size);
struct node_active_region node_ar;

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