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| author | Yinghai Lu <yinghai@kernel.org> | 2010-08-25 13:39:18 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-08-27 11:13:54 -0700 |
| commit | 6f2a75369e7561e800d86927ecd83c970996b21f (patch) | |
| tree | 558e90d291a6dfc17cd950805bf5f56cb2b690e1 /arch/x86/include/asm/e820.h | |
| parent | a587d2daebcd2bc159d4348b6a7b028950a6d803 (diff) | |
| download | lwn-6f2a75369e7561e800d86927ecd83c970996b21f.tar.gz lwn-6f2a75369e7561e800d86927ecd83c970996b21f.zip | |
x86, memblock: Use memblock_memory_size()/memblock_free_memory_size() to get correct dma_reserve
memblock_memory_size() will return memory size in memblock.memory.region.
memblock_free_memory_size() will return free memory size in memblock.memory.region.
So We can get exact reseved size in specified range.
Set the size right after initmem_init(), because later bootmem API will
get area above 16M. (except some fallback).
Later after we remove the bootmem, We could call that just before paging_init().
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/include/asm/e820.h')
| -rw-r--r-- | arch/x86/include/asm/e820.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h index 718646384e03..5be1542fbfaf 100644 --- a/arch/x86/include/asm/e820.h +++ b/arch/x86/include/asm/e820.h @@ -117,6 +117,8 @@ extern unsigned long e820_end_of_low_ram_pfn(void); extern u64 early_reserve_e820(u64 startt, u64 sizet, u64 align); void memblock_x86_fill(void); +void memblock_find_dma_reserve(void); + extern void finish_e820_parsing(void); extern void e820_reserve_resources(void); extern void e820_reserve_resources_late(void); |