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x86: add free_coherent dma_ops callback to GART driver

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Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Joerg Roedel
2008-08-19 16:32:40 +02:00
committed by Ingo Molnar
parent 94581094e7
commit 43a5a5a09b
1 changed files with 10 additions and 0 deletions
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10
arch/x86/kernel/pci-gart_64.c
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@@ -519,6 +519,15 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr,
return NULL; 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 int no_agp;
static __init unsigned long check_iommu_size(unsigned long aper, u64 aper_size) 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, .map_sg = gart_map_sg,
.unmap_sg = gart_unmap_sg, .unmap_sg = gart_unmap_sg,
.alloc_coherent = gart_alloc_coherent, .alloc_coherent = gart_alloc_coherent,
.free_coherent = gart_free_coherent,
}; };
void gart_iommu_shutdown(void) void gart_iommu_shutdown(void)