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authorYinghai Lu <yinghai@kernel.org>2010-02-16 18:40:35 -0800
committerH. Peter Anvin <hpa@zytor.com>2010-02-16 21:43:39 -0800
commit580e0ad21d6d6f932461d24b47041e3dd499c23f (patch)
tree3476c71849c0f9aa54c160b9a994bf4d211bd697 /arch/x86/kernel/e820.c
parentdd645cee7b50b61cb2d05b59eb6027679c437af6 (diff)
core: Move early_res from arch/x86 to kernel/
This makes the range reservation feature available to other architectures. -v2: add get_max_mapped, max_pfn_mapped only defined in x86... to fix PPC compiling -v3: according to hpa, add CONFIG_HAVE_EARLY_RES -v4: fix typo about EARLY_RES in config Signed-off-by: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <4B7B5723.4070009@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/kernel/e820.c')
-rw-r--r--arch/x86/kernel/e820.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 36918d8463a..740b440fbd7 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -17,7 +17,6 @@
#include <linux/firmware-map.h>
#include <asm/e820.h>
-#include <asm/early_res.h>
#include <asm/proto.h>
#include <asm/setup.h>
@@ -752,6 +751,15 @@ u64 __init find_fw_memmap_area(u64 start, u64 end, u64 size, u64 align)
{
return find_e820_area(start, end, size, align);
}
+
+u64 __init get_max_mapped(void)
+{
+ u64 end = max_pfn_mapped;
+
+ end <<= PAGE_SHIFT;
+
+ return end;
+}
/*
* Find next free range after *start
*/