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| author | Joerg Roedel <joerg.roedel@amd.com> | 2008-08-19 16:32:40 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-22 08:34:46 +0200 |
| commit | 43a5a5a09b8cfd56047706cf904718d073ccfd33 (patch) | |
| tree | 5f537fa359fae2f58a0d590968f4555c97c8a634 /arch/x86/kernel/pci-gart_64.c | |
| parent | x86: add alloc_coherent dma_ops callback to GART driver (diff) | |
| download | linux-43a5a5a09b8cfd56047706cf904718d073ccfd33.tar.xz linux-43a5a5a09b8cfd56047706cf904718d073ccfd33.zip | |
x86: add free_coherent dma_ops callback to GART driver
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/pci-gart_64.c')
| -rw-r--r-- | arch/x86/kernel/pci-gart_64.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c index 076e64b2d4f3..ef753e233580 100644 --- a/arch/x86/kernel/pci-gart_64.c +++ b/arch/x86/kernel/pci-gart_64.c @@ -519,6 +519,15 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr, return NULL; } +/* free a coherent mapping */ +static void +gart_free_coherent(struct device *dev, size_t size, void *vaddr, + dma_addr_t dma_addr) +{ + gart_unmap_single(dev, dma_addr, size, DMA_BIDIRECTIONAL); + free_pages((unsigned long)vaddr, get_order(size)); +} + static int no_agp; static __init unsigned long check_iommu_size(unsigned long aper, u64 aper_size) @@ -722,6 +731,7 @@ static struct dma_mapping_ops gart_dma_ops = { .map_sg = gart_map_sg, .unmap_sg = gart_unmap_sg, .alloc_coherent = gart_alloc_coherent, + .free_coherent = gart_free_coherent, }; void gart_iommu_shutdown(void) |