diff options
Diffstat (limited to 'arch/tile')
| -rw-r--r-- | arch/tile/include/asm/device.h | 3 | ||||
| -rw-r--r-- | arch/tile/include/asm/dma-mapping.h | 20 | ||||
| -rw-r--r-- | arch/tile/kernel/pci-dma.c | 24 |
3 files changed, 18 insertions, 29 deletions
diff --git a/arch/tile/include/asm/device.h b/arch/tile/include/asm/device.h index 6ab8bf146d4c..1cf45422a0df 100644 --- a/arch/tile/include/asm/device.h +++ b/arch/tile/include/asm/device.h @@ -17,9 +17,6 @@ #define _ASM_TILE_DEVICE_H struct dev_archdata { - /* DMA operations on that device */ - struct dma_map_ops *dma_ops; - /* Offset of the DMA address from the PA. */ dma_addr_t dma_offset; diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h index 01ceb4a895b0..bbc71a29b2c6 100644 --- a/arch/tile/include/asm/dma-mapping.h +++ b/arch/tile/include/asm/dma-mapping.h @@ -24,17 +24,14 @@ #define ARCH_HAS_DMA_GET_REQUIRED_MASK #endif -extern struct dma_map_ops *tile_dma_map_ops; -extern struct dma_map_ops *gx_pci_dma_map_ops; -extern struct dma_map_ops *gx_legacy_pci_dma_map_ops; -extern struct dma_map_ops *gx_hybrid_pci_dma_map_ops; +extern const struct dma_map_ops *tile_dma_map_ops; +extern const struct dma_map_ops *gx_pci_dma_map_ops; +extern const struct dma_map_ops *gx_legacy_pci_dma_map_ops; +extern const struct dma_map_ops *gx_hybrid_pci_dma_map_ops; -static inline struct dma_map_ops *get_dma_ops(struct device *dev) +static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) { - if (dev && dev->archdata.dma_ops) - return dev->archdata.dma_ops; - else - return tile_dma_map_ops; + return tile_dma_map_ops; } static inline dma_addr_t get_dma_offset(struct device *dev) @@ -59,11 +56,6 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) static inline void dma_mark_clean(void *addr, size_t size) {} -static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops) -{ - dev->archdata.dma_ops = ops; -} - static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) { if (!dev->dma_mask) diff --git a/arch/tile/kernel/pci-dma.c b/arch/tile/kernel/pci-dma.c index 24e0f8c21f2f..569bb6dd154a 100644 --- a/arch/tile/kernel/pci-dma.c +++ b/arch/tile/kernel/pci-dma.c @@ -329,7 +329,7 @@ tile_dma_supported(struct device *dev, u64 mask) return 1; } -static struct dma_map_ops tile_default_dma_map_ops = { +static const struct dma_map_ops tile_default_dma_map_ops = { .alloc = tile_dma_alloc_coherent, .free = tile_dma_free_coherent, .map_page = tile_dma_map_page, @@ -344,7 +344,7 @@ static struct dma_map_ops tile_default_dma_map_ops = { .dma_supported = tile_dma_supported }; -struct dma_map_ops *tile_dma_map_ops = &tile_default_dma_map_ops; +const struct dma_map_ops *tile_dma_map_ops = &tile_default_dma_map_ops; EXPORT_SYMBOL(tile_dma_map_ops); /* Generic PCI DMA mapping functions */ @@ -516,7 +516,7 @@ tile_pci_dma_supported(struct device *dev, u64 mask) return 1; } -static struct dma_map_ops tile_pci_default_dma_map_ops = { +static const struct dma_map_ops tile_pci_default_dma_map_ops = { .alloc = tile_pci_dma_alloc_coherent, .free = tile_pci_dma_free_coherent, .map_page = tile_pci_dma_map_page, @@ -531,7 +531,7 @@ static struct dma_map_ops tile_pci_default_dma_map_ops = { .dma_supported = tile_pci_dma_supported }; -struct dma_map_ops *gx_pci_dma_map_ops = &tile_pci_default_dma_map_ops; +const struct dma_map_ops *gx_pci_dma_map_ops = &tile_pci_default_dma_map_ops; EXPORT_SYMBOL(gx_pci_dma_map_ops); /* PCI DMA mapping functions for legacy PCI devices */ @@ -552,7 +552,7 @@ static void tile_swiotlb_free_coherent(struct device *dev, size_t size, swiotlb_free_coherent(dev, size, vaddr, dma_addr); } -static struct dma_map_ops pci_swiotlb_dma_ops = { +static const struct dma_map_ops pci_swiotlb_dma_ops = { .alloc = tile_swiotlb_alloc_coherent, .free = tile_swiotlb_free_coherent, .map_page = swiotlb_map_page, @@ -567,7 +567,7 @@ static struct dma_map_ops pci_swiotlb_dma_ops = { .mapping_error = swiotlb_dma_mapping_error, }; -static struct dma_map_ops pci_hybrid_dma_ops = { +static const struct dma_map_ops pci_hybrid_dma_ops = { .alloc = tile_swiotlb_alloc_coherent, .free = tile_swiotlb_free_coherent, .map_page = tile_pci_dma_map_page, @@ -582,18 +582,18 @@ static struct dma_map_ops pci_hybrid_dma_ops = { .dma_supported = tile_pci_dma_supported }; -struct dma_map_ops *gx_legacy_pci_dma_map_ops = &pci_swiotlb_dma_ops; -struct dma_map_ops *gx_hybrid_pci_dma_map_ops = &pci_hybrid_dma_ops; +const struct dma_map_ops *gx_legacy_pci_dma_map_ops = &pci_swiotlb_dma_ops; +const struct dma_map_ops *gx_hybrid_pci_dma_map_ops = &pci_hybrid_dma_ops; #else -struct dma_map_ops *gx_legacy_pci_dma_map_ops; -struct dma_map_ops *gx_hybrid_pci_dma_map_ops; +const struct dma_map_ops *gx_legacy_pci_dma_map_ops; +const struct dma_map_ops *gx_hybrid_pci_dma_map_ops; #endif EXPORT_SYMBOL(gx_legacy_pci_dma_map_ops); EXPORT_SYMBOL(gx_hybrid_pci_dma_map_ops); int dma_set_mask(struct device *dev, u64 mask) { - struct dma_map_ops *dma_ops = get_dma_ops(dev); + const struct dma_map_ops *dma_ops = get_dma_ops(dev); /* * For PCI devices with 64-bit DMA addressing capability, promote @@ -623,7 +623,7 @@ EXPORT_SYMBOL(dma_set_mask); #ifdef CONFIG_ARCH_HAS_DMA_SET_COHERENT_MASK int dma_set_coherent_mask(struct device *dev, u64 mask) { - struct dma_map_ops *dma_ops = get_dma_ops(dev); + const struct dma_map_ops *dma_ops = get_dma_ops(dev); /* * For PCI devices with 64-bit DMA addressing capability, promote |