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| author | Yinghai Lu <yinghai@kernel.org> | 2010-02-17 05:40:35 +0300 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-02-17 08:43:39 +0300 |
| commit | 580e0ad21d6d6f932461d24b47041e3dd499c23f (patch) | |
| tree | 3476c71849c0f9aa54c160b9a994bf4d211bd697 /arch/x86/kernel/e820.c | |
| parent | dd645cee7b50b61cb2d05b59eb6027679c437af6 (diff) | |
| download | linux-580e0ad21d6d6f932461d24b47041e3dd499c23f.tar.xz | |
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.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index 36918d8463ab..740b440fbd73 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 */ |