Messages in this thread Patch in this message | | | From | FUJITA Tomonori <> | Subject | [PATCH 2/4] x86: convert gart to use is_buffer_dma_capable helper function | Date | Wed, 10 Sep 2008 01:06:47 +0900 |
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Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Joerg Roedel <joerg.roedel@amd.com> --- arch/x86/kernel/pci-gart_64.c | 16 +++------------- 1 files changed, 3 insertions(+), 13 deletions(-)
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c index 0b99d4a..1b0c412 100644 --- a/arch/x86/kernel/pci-gart_64.c +++ b/arch/x86/kernel/pci-gart_64.c @@ -214,24 +214,14 @@ static void iommu_full(struct device *dev, size_t size, int dir) static inline int need_iommu(struct device *dev, unsigned long addr, size_t size) { - u64 mask = *dev->dma_mask; - int high = addr + size > mask; - int mmu = high; - - if (force_iommu) - mmu = 1; - - return mmu; + return force_iommu || + !is_buffer_dma_capable(*dev->dma_mask, addr, size); } static inline int nonforced_iommu(struct device *dev, unsigned long addr, size_t size) { - u64 mask = *dev->dma_mask; - int high = addr + size > mask; - int mmu = high; - - return mmu; + return !is_buffer_dma_capable(*dev->dma_mask, addr, size); } /* Map a single continuous physical area into the IOMMU. -- 1.5.4.2
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