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authorYinghai Lu <yinghai@kernel.org>2010-02-10 01:20:20 -0800
committerH. Peter Anvin <hpa@zytor.com>2010-02-12 09:41:59 -0800
commit08677214e318297f228237be0042aac754f48f1d (patch)
tree6d03424f7e287fcf66136b44512328afb1aeee49 /arch/x86/mm/init_64.c
parentc252a5bb1f57afb1e336d68085217727ca7b2134 (diff)
x86: Make 64 bit use early_res instead of bootmem before slab
Finally we can use early_res to replace bootmem for x86_64 now. Still can use CONFIG_NO_BOOTMEM to enable it or not. -v2: fix 32bit compiling about MAX_DMA32_PFN -v3: folded bug fix from LKML message below Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <4B747239.4070907@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/mm/init_64.c')
-rw-r--r--arch/x86/mm/init_64.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index a15abaae5ba..53158b7e5d4 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -572,6 +572,7 @@ kernel_physical_mapping_init(unsigned long start,
void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn,
int acpi, int k8)
{
+#ifndef CONFIG_NO_BOOTMEM
unsigned long bootmap_size, bootmap;
bootmap_size = bootmem_bootmap_pages(end_pfn)<<PAGE_SHIFT;
@@ -585,6 +586,9 @@ void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn,
0, end_pfn);
e820_register_active_regions(0, start_pfn, end_pfn);
free_bootmem_with_active_regions(0, end_pfn);
+#else
+ e820_register_active_regions(0, start_pfn, end_pfn);
+#endif
}
#endif