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[POWERPC] cleanup dma_mapping_ops 

For pseries IOMMU bypass I want to be able to fall back to the regular
IOMMU ops. Do this by creating a dma_mapping_ops struct, and convert
the others while at it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Anton Blanchard 2006-06-10 23:04:39 +10:00 committed by Paul Mackerras
parent ca1588e71b
commit df310656c7
3 changed files with 33 additions and 21 deletions
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18
arch/powerpc/kernel/pci_direct_iommu.c
View File

@ -82,13 +82,17 @@ static int pci_direct_dma_supported(struct device *dev, u64 mask)
return mask < 0x100000000ull; return mask < 0x100000000ull;
} }
static struct dma_mapping_ops pci_direct_ops = {
.alloc_coherent = pci_direct_alloc_coherent,
.free_coherent = pci_direct_free_coherent,
.map_single = pci_direct_map_single,
.unmap_single = pci_direct_unmap_single,
.map_sg = pci_direct_map_sg,
.unmap_sg = pci_direct_unmap_sg,
.dma_supported = pci_direct_dma_supported,
};
void __init pci_direct_iommu_init(void) void __init pci_direct_iommu_init(void)
{ {
pci_dma_ops.alloc_coherent = pci_direct_alloc_coherent; pci_dma_ops = pci_direct_ops;
pci_dma_ops.free_coherent = pci_direct_free_coherent;
pci_dma_ops.map_single = pci_direct_map_single;
pci_dma_ops.unmap_single = pci_direct_unmap_single;
pci_dma_ops.map_sg = pci_direct_map_sg;
pci_dma_ops.unmap_sg = pci_direct_unmap_sg;
pci_dma_ops.dma_supported = pci_direct_dma_supported;
} }

18
arch/powerpc/kernel/pci_iommu.c
View File

@ -148,13 +148,17 @@ static int pci_iommu_dma_supported(struct device *dev, u64 mask)
return 1; return 1;
} }
struct dma_mapping_ops pci_iommu_ops = {
.alloc_coherent = pci_iommu_alloc_coherent,
.free_coherent = pci_iommu_free_coherent,
.map_single = pci_iommu_map_single,
.unmap_single = pci_iommu_unmap_single,
.map_sg = pci_iommu_map_sg,
.unmap_sg = pci_iommu_unmap_sg,
.dma_supported = pci_iommu_dma_supported,
};
void pci_iommu_init(void) void pci_iommu_init(void)
{ {
pci_dma_ops.alloc_coherent = pci_iommu_alloc_coherent; pci_dma_ops = pci_iommu_ops;
pci_dma_ops.free_coherent = pci_iommu_free_coherent;
pci_dma_ops.map_single = pci_iommu_map_single;
pci_dma_ops.unmap_single = pci_iommu_unmap_single;
pci_dma_ops.map_sg = pci_iommu_map_sg;
pci_dma_ops.unmap_sg = pci_iommu_unmap_sg;
pci_dma_ops.dma_supported = pci_iommu_dma_supported;
} }

18
arch/powerpc/platforms/cell/iommu.c
View File

@ -473,6 +473,16 @@ static int cell_dma_supported(struct device *dev, u64 mask)
return mask < 0x100000000ull; return mask < 0x100000000ull;
} }
static struct dma_mapping_ops cell_iommu_ops = {
.alloc_coherent = cell_alloc_coherent,
.free_coherent = cell_free_coherent,
.map_single = cell_map_single,
.unmap_single = cell_unmap_single,
.map_sg = cell_map_sg,
.unmap_sg = cell_unmap_sg,
.dma_supported = cell_dma_supported,
};
void cell_init_iommu(void) void cell_init_iommu(void)
{ {
int setup_bus = 0; int setup_bus = 0;
@ -498,11 +508,5 @@ void cell_init_iommu(void)
} }
} }
pci_dma_ops.alloc_coherent = cell_alloc_coherent; pci_dma_ops = cell_iommu_ops;
pci_dma_ops.free_coherent = cell_free_coherent;
pci_dma_ops.map_single = cell_map_single;
pci_dma_ops.unmap_single = cell_unmap_single;
pci_dma_ops.map_sg = cell_map_sg;
pci_dma_ops.unmap_sg = cell_unmap_sg;
pci_dma_ops.dma_supported = cell_dma_supported;
} }