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(parent: 38ddf41) | patch
AMD IOMMU: avoid unnecessary low zone allocation in alloc_coherent
authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Wed, 10 Sep 2008 11:19:40 +0000 (20:19 +0900)
committerIngo Molnar <mingo@elte.hu>
Fri, 19 Sep 2008 10:59:24 +0000 (12:59 +0200)
commit13d9fead3daa0efa1b8bb6ae59650e4453b39128
treeefbfb74d7f5f11f50ca103686a726dad8398e9e0tree | snapshot
parent38ddf41b198e21d3ecbe5752e875857b7ce7589ecommit | diff
AMD IOMMU: avoid unnecessary low zone allocation in alloc_coherent

x86's common alloc_coherent (dma_alloc_coherent in dma-mapping.h) sets
up the gfp flag according to the device dma_mask but AMD IOMMU doesn't
need it for devices that the IOMMU can do virtual mappings for. This
patch avoids unnecessary low zone allocation.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/kernel/amd_iommu.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git