From d24f9c6999eacd3a7bc2b289e49fcb2bf2fafef2 Mon Sep 17 00:00:00 2001 From: Milton Miller Date: Fri, 24 Jun 2011 09:05:24 +0000 Subject: 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 Signed-off-by: Nishanth Aravamudan Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org Cc: benh@kernel.crashing.org Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/device.h | 2 ++ arch/powerpc/include/asm/dma-mapping.h | 3 --- 2 files changed, 2 insertions(+), 3 deletions(-) (limited to 'arch/powerpc/include') 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; -- cgit v1.2.3-59-g8ed1b