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| author | Yinghai Lu <yinghai@kernel.org> | 2010-08-25 20:39:18 (GMT) |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-08-27 18:13:54 (GMT) |
| commit | 6f2a75369e7561e800d86927ecd83c970996b21f (patch) | |
| tree | 558e90d291a6dfc17cd950805bf5f56cb2b690e1 /arch/x86/mm | |
| parent | a587d2daebcd2bc159d4348b6a7b028950a6d803 (diff) | |
| download | linux-6f2a75369e7561e800d86927ecd83c970996b21f.tar.xz | |
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/mm')
| -rw-r--r-- | arch/x86/mm/init_64.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 592b236..d6d4084 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -53,8 +53,6 @@ #include <asm/init.h> #include <linux/bootmem.h> -static unsigned long dma_reserve __initdata; - static int __init parse_direct_gbpages_off(char *arg) { direct_gbpages = 0; @@ -821,11 +819,6 @@ int __init reserve_bootmem_generic(unsigned long phys, unsigned long len, reserve_bootmem(phys, len, flags); - if (phys+len <= MAX_DMA_PFN*PAGE_SIZE) { - dma_reserve += len / PAGE_SIZE; - set_dma_reserve(dma_reserve); - } - return 0; } #endif |