ARM: memblock: use memblock to free memory into arm_bootmem_init()
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>
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index f68c93b..8e1edbc 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -148,14 +148,13 @@
}
}
-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 @@
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 @@
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(),