diff options
| author |   Milton Miller <miltonm@bga.com> | 2011-06-24 09:05:24 +0000 |
|---|---|---|
| committer |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-09-20 09:19:35 +1000 |
| commit | d24f9c6999eacd3a7bc2b289e49fcb2bf2fafef2 (patch) | |
| tree | 66276ee7149e5eab4b7ec9785bad7bdf0564ea3d /arch/powerpc/include | |
| parent | dma-mapping: Add get_required_mask if arch overrides default (diff) | |
| download | linux-dev-d24f9c6999eacd3a7bc2b289e49fcb2bf2fafef2.tar.xz linux-dev-d24f9c6999eacd3a7bc2b289e49fcb2bf2fafef2.zip | |
powerpc: Use the newly added get_required_mask dma_map_ops hook
Now that the generic code has dma_map_ops set, instead of having a
messy ifdef & if block in the base dma_get_required_mask hook push
the computation into the dma ops.
If the ops fails to set the get_required_mask hook default to the
width of dma_addr_t.
This also corrects ibmbus ibmebus_dma_supported to require a 64
bit mask. I doubt anything is checking or setting the dma mask on
that bus.
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org
Cc: benh@kernel.crashing.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/device.h | 2 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/dma-mapping.h | 3 |
2 files changed, 2 insertions, 3 deletions
diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h index 16d25c0974be..d57c08acedfc 100644 --- a/arch/powerpc/include/asm/device.h +++ b/arch/powerpc/include/asm/device.h @@ -37,4 +37,6 @@ struct pdev_archdata { u64 dma_mask; }; +#define ARCH_HAS_DMA_GET_REQUIRED_MASK + #endif /* _ASM_POWERPC_DEVICE_H */ diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index 8135e66a4bb9..dd70fac57ec8 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -20,8 +20,6 @@ #define DMA_ERROR_CODE (~(dma_addr_t)0x0) -#define ARCH_HAS_DMA_GET_REQUIRED_MASK - /* Some dma direct funcs must be visible for use in other dma_ops */ extern void *dma_direct_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flag); @@ -71,7 +69,6 @@ static inline unsigned long device_to_mask(struct device *dev) */ #ifdef CONFIG_PPC64 extern struct dma_map_ops dma_iommu_ops; -extern u64 dma_iommu_get_required_mask(struct device *dev); #endif extern struct dma_map_ops dma_direct_ops; |