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Diffstat (limited to 'arch/powerpc/mm/mem.c')
-rw-r--r--arch/powerpc/mm/mem.c38
1 files changed, 4 insertions, 34 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index f1f7409a4183..0988a26e0413 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -66,10 +66,9 @@ unsigned long long memory_limit;
#ifdef CONFIG_HIGHMEM
pte_t *kmap_pte;
+EXPORT_SYMBOL(kmap_pte);
pgprot_t kmap_prot;
-
EXPORT_SYMBOL(kmap_prot);
-EXPORT_SYMBOL(kmap_pte);
static inline pte_t *virt_to_kpte(unsigned long vaddr)
{
@@ -352,13 +351,9 @@ void __init mem_init(void)
struct page *page = pfn_to_page(pfn);
if (memblock_is_reserved(paddr))
continue;
- ClearPageReserved(page);
- init_page_count(page);
- __free_page(page);
- totalhigh_pages++;
+ free_highmem_page(page);
reservedpages--;
}
- totalram_pages += totalhigh_pages;
printk(KERN_DEBUG "High memory: %luk\n",
totalhigh_pages << (PAGE_SHIFT-10));
}
@@ -405,39 +400,14 @@ void __init mem_init(void)
void free_initmem(void)
{
- unsigned long addr;
-
ppc_md.progress = ppc_printk_progress;
-
- addr = (unsigned long)__init_begin;
- for (; addr < (unsigned long)__init_end; addr += PAGE_SIZE) {
- memset((void *)addr, POISON_FREE_INITMEM, PAGE_SIZE);
- ClearPageReserved(virt_to_page(addr));
- init_page_count(virt_to_page(addr));
- free_page(addr);
- totalram_pages++;
- }
- pr_info("Freeing unused kernel memory: %luk freed\n",
- ((unsigned long)__init_end -
- (unsigned long)__init_begin) >> 10);
+ free_initmem_default(POISON_FREE_INITMEM);
}
#ifdef CONFIG_BLK_DEV_INITRD
void __init free_initrd_mem(unsigned long start, unsigned long end)
{
- if (start >= end)
- return;
-
- start = _ALIGN_DOWN(start, PAGE_SIZE);
- end = _ALIGN_UP(end, PAGE_SIZE);
- pr_info("Freeing initrd memory: %ldk freed\n", (end - start) >> 10);
-
- for (; start < end; start += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(start));
- init_page_count(virt_to_page(start));
- free_page(start);
- totalram_pages++;
- }
+ free_reserved_area(start, end, 0, "initrd");
}
#endif