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ARM: memblock: use memblock to free memory into arm_bootmem_init()

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Switch arm_bootmem_init() to use memblock instead of membank to
free memory into bootmem.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2010-10-27 19:27:44 +01:00
parent a2c54d2af8
commit a801d27640
1 changed files with 25 additions and 17 deletions
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42
arch/arm/mm/init.c
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@ -148,14 +148,13 @@ 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)
static void __init arm_bootmem_init(unsigned long start_pfn,
unsigned long end_pfn)
{
struct memblock_region *reg;
unsigned int boot_pages;
phys_addr_t bitmap;
pg_data_t *pgdat;
int i;
/*
* Allocate the bootmem bitmap page. This must be in a region
@ -173,22 +172,31 @@ static void __init arm_bootmem_init(struct meminfo *mi,
pgdat = NODE_DATA(0);
init_bootmem_node(pgdat, __phys_to_pfn(bitmap), start_pfn, end_pfn);
for_each_bank(i, mi) {
struct membank *bank = &mi->bank[i];
if (!bank->highmem)
free_bootmem(bank_phys_start(bank), bank_phys_size(bank));
/* Free the lowmem regions from memblock into bootmem. */
for_each_memblock(memory, reg) {
unsigned long start = memblock_region_memory_base_pfn(reg);
unsigned long end = memblock_region_memory_end_pfn(reg);
if (end >= end_pfn)
end = end_pfn;
if (start >= end)
break;
free_bootmem(__pfn_to_phys(start), (end - start) << PAGE_SHIFT);
}
/*
* Reserve the memblock reserved regions in bootmem.
*/
/* Reserve the lowmem memblock reserved regions in bootmem. */
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),
(end - start) << PAGE_SHIFT,
BOOTMEM_DEFAULT);
unsigned long start = memblock_region_reserved_base_pfn(reg);
unsigned long end = memblock_region_reserved_end_pfn(reg);
if (end >= end_pfn)
end = end_pfn;
if (start >= end)
break;
reserve_bootmem(__pfn_to_phys(start),
(end - start) << PAGE_SHIFT, BOOTMEM_DEFAULT);
}
}
@ -316,7 +324,7 @@ void __init bootmem_init(void)
find_limits(mi, &min, &max_low, &max_high);
arm_bootmem_init(mi, min, max_low);
arm_bootmem_init(min, max_low);
/*
* Sparsemem tries to allocate bootmem in memory_present(),