diff options
| author | Yinghai Lu <yinghai@kernel.org> | 2014-01-27 17:06:49 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-01-27 21:02:38 -0800 |
| commit | ad6492b80f60a2139fa9bf8fd79b182fe5e3647c (patch) | |
| tree | f52530fb2240679a0f88ba5047a3bedc6dacf796 /lib/swiotlb.c | |
| parent | ba635f8cd20ebc7bddf1eb8e1f4eae28a034e916 (diff) | |
| download | lwn-ad6492b80f60a2139fa9bf8fd79b182fe5e3647c.tar.gz lwn-ad6492b80f60a2139fa9bf8fd79b182fe5e3647c.zip | |
memblock, nobootmem: add memblock_virt_alloc_low()
The new memblock_virt APIs are used to replaced old bootmem API.
We need to allocate page below 4G for swiotlb.
That should fix regression on Andrew's system that is using swiotlb.
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/swiotlb.c')
| -rw-r--r-- | lib/swiotlb.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/swiotlb.c b/lib/swiotlb.c index 2e1c102759ce..b604b831f4d1 100644 --- a/lib/swiotlb.c +++ b/lib/swiotlb.c @@ -172,7 +172,7 @@ int __init swiotlb_init_with_tbl(char *tlb, unsigned long nslabs, int verbose) /* * Get the overflow emergency buffer */ - v_overflow_buffer = memblock_virt_alloc_nopanic( + v_overflow_buffer = memblock_virt_alloc_low_nopanic( PAGE_ALIGN(io_tlb_overflow), PAGE_SIZE); if (!v_overflow_buffer) @@ -220,7 +220,7 @@ swiotlb_init(int verbose) bytes = io_tlb_nslabs << IO_TLB_SHIFT; /* Get IO TLB memory from the low pages */ - vstart = memblock_virt_alloc_nopanic(PAGE_ALIGN(bytes), PAGE_SIZE); + vstart = memblock_virt_alloc_low_nopanic(PAGE_ALIGN(bytes), PAGE_SIZE); if (vstart && !swiotlb_init_with_tbl(vstart, io_tlb_nslabs, verbose)) return; |