diff options
| -rw-r--r-- | arch/alpha/include/asm/dma-mapping.h | 3 | ||||
| -rw-r--r-- | arch/arm/include/asm/dma-mapping.h | 21 | ||||
| -rw-r--r-- | arch/arm64/include/asm/dma-mapping.h | 14 | ||||
| -rw-r--r-- | arch/h8300/include/asm/dma-mapping.h | 3 | ||||
| -rw-r--r-- | arch/hexagon/include/asm/dma-mapping.h | 3 | ||||
| -rw-r--r-- | arch/ia64/include/asm/dma-mapping.h | 3 | ||||
| -rw-r--r-- | arch/microblaze/include/asm/dma-mapping.h | 3 | ||||
| -rw-r--r-- | arch/mips/include/asm/dma-mapping.h | 6 | ||||
| -rw-r--r-- | arch/mips/mm/dma-default.c | 20 | ||||
| -rw-r--r-- | arch/openrisc/include/asm/dma-mapping.h | 20 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/dma-mapping.h | 3 | ||||
| -rw-r--r-- | arch/s390/include/asm/dma-mapping.h | 3 | ||||
| -rw-r--r-- | arch/sh/include/asm/dma-mapping.h | 3 | ||||
| -rw-r--r-- | arch/sparc/include/asm/dma-mapping.h | 3 | ||||
| -rw-r--r-- | arch/tile/include/asm/dma-mapping.h | 3 | ||||
| -rw-r--r-- | arch/unicore32/include/asm/dma-mapping.h | 3 | ||||
| -rw-r--r-- | arch/x86/include/asm/dma-mapping.h | 3 | ||||
| -rw-r--r-- | arch/xtensa/include/asm/dma-mapping.h | 3 | ||||
| -rw-r--r-- | include/asm-generic/dma-mapping-common.h | 18 |
19 files changed, 39 insertions, 99 deletions
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h index 9fef5bd59a82..0552bf097245 100644 --- a/arch/alpha/include/asm/dma-mapping.h +++ b/arch/alpha/include/asm/dma-mapping.h @@ -27,9 +27,6 @@ static inline int dma_set_mask(struct device *dev, u64 mask) return get_dma_ops(dev)->set_dma_mask(dev, mask); } -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) - #define dma_cache_sync(dev, va, size, dir) ((void)0) #endif /* _ALPHA_DMA_MAPPING_H */ diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index bc404473f1ca..0b7787167b64 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -38,6 +38,12 @@ static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops) dev->archdata.dma_ops = ops; } +/* + * Note that while the generic code provides dummy dma_{alloc,free}_noncoherent + * implementations, we don't provide a dma_cache_sync function so drivers using + * this API are highlighted with build warnings. + */ + #include <asm-generic/dma-mapping-common.h> static inline int dma_set_mask(struct device *dev, u64 mask) @@ -175,21 +181,6 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) return dma_addr == DMA_ERROR_CODE; } -/* - * Dummy noncoherent implementation. We don't provide a dma_cache_sync - * function so drivers using this API are highlighted with build warnings. - */ -static inline void *dma_alloc_noncoherent(struct device *dev, size_t size, - dma_addr_t *handle, gfp_t gfp) -{ - return NULL; -} - -static inline void dma_free_noncoherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t handle) -{ -} - extern int dma_supported(struct device *dev, u64 mask); extern int arm_dma_set_mask(struct device *dev, u64 dma_mask); diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h index 5e11b3f0fe3a..178e60b80922 100644 --- a/arch/arm64/include/asm/dma-mapping.h +++ b/arch/arm64/include/asm/dma-mapping.h @@ -118,19 +118,5 @@ static inline void dma_mark_clean(void *addr, size_t size) { } -/* - * There is no dma_cache_sync() implementation, so just return NULL here. - */ -static inline void *dma_alloc_noncoherent(struct device *dev, size_t size, - dma_addr_t *handle, gfp_t flags) -{ - return NULL; -} - -static inline void dma_free_noncoherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t handle) -{ -} - #endif /* __KERNEL__ */ #endif /* __ASM_DMA_MAPPING_H */ diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h index 826aa9b519b7..72465ce59453 100644 --- a/arch/h8300/include/asm/dma-mapping.h +++ b/arch/h8300/include/asm/dma-mapping.h @@ -20,9 +20,6 @@ static inline int dma_set_mask(struct device *dev, u64 mask) return 0; } -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) - static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) { return 0; diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h index c20d3caa7dad..58d2d8f1544a 100644 --- a/arch/hexagon/include/asm/dma-mapping.h +++ b/arch/hexagon/include/asm/dma-mapping.h @@ -34,9 +34,6 @@ extern int bad_dma_address; extern struct dma_map_ops *dma_ops; -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) - static inline struct dma_map_ops *get_dma_ops(struct device *dev) { if (unlikely(dev == NULL)) diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h index d36f83cc226a..a925ff03c964 100644 --- a/arch/ia64/include/asm/dma-mapping.h +++ b/arch/ia64/include/asm/dma-mapping.h @@ -23,9 +23,6 @@ extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t, extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int, enum dma_data_direction); -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) - #define get_dma_ops(dev) platform_dma_get_ops(dev) #include <asm-generic/dma-mapping-common.h> diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h index 801dbe215a8c..bc81625d486f 100644 --- a/arch/microblaze/include/asm/dma-mapping.h +++ b/arch/microblaze/include/asm/dma-mapping.h @@ -98,9 +98,6 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) return (dma_addr == DMA_ERROR_CODE); } -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) - static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction) { diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h index b197595134ba..709b2ba79cc3 100644 --- a/arch/mips/include/asm/dma-mapping.h +++ b/arch/mips/include/asm/dma-mapping.h @@ -64,10 +64,4 @@ dma_set_mask(struct device *dev, u64 mask) extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction); -void *dma_alloc_noncoherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag); - -void dma_free_noncoherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle); - #endif /* _ASM_DMA_MAPPING_H */ diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c index 6c0fd13fa8e8..a914dc1cb6d1 100644 --- a/arch/mips/mm/dma-default.c +++ b/arch/mips/mm/dma-default.c @@ -112,7 +112,7 @@ static gfp_t massage_gfp_flags(const struct device *dev, gfp_t gfp) return gfp | dma_flag; } -void *dma_alloc_noncoherent(struct device *dev, size_t size, +static void *mips_dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t * dma_handle, gfp_t gfp) { void *ret; @@ -128,7 +128,6 @@ void *dma_alloc_noncoherent(struct device *dev, size_t size, return ret; } -EXPORT_SYMBOL(dma_alloc_noncoherent); static void *mips_dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t * dma_handle, gfp_t gfp, struct dma_attrs *attrs) @@ -137,6 +136,13 @@ static void *mips_dma_alloc_coherent(struct device *dev, size_t size, struct page *page = NULL; unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT; + /* + * XXX: seems like the coherent and non-coherent implementations could + * be consolidated. + */ + if (dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs)) + return mips_dma_alloc_noncoherent(dev, size, dma_handle, gfp); + gfp = massage_gfp_flags(dev, gfp); if (IS_ENABLED(CONFIG_DMA_CMA) && !(gfp & GFP_ATOMIC)) @@ -161,13 +167,12 @@ static void *mips_dma_alloc_coherent(struct device *dev, size_t size, } -void dma_free_noncoherent(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_handle) +static void mips_dma_free_noncoherent(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle) { plat_unmap_dma_mem(dev, dma_handle, size, DMA_BIDIRECTIONAL); free_pages((unsigned long) vaddr, get_order(size)); } -EXPORT_SYMBOL(dma_free_noncoherent); static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle, struct dma_attrs *attrs) @@ -176,6 +181,11 @@ static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr, unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT; struct page *page = NULL; + if (dma_get_attr(DMA_ATTR_NON_CONSISTENT, attrs)) { + mips_dma_free_noncoherent(dev, size, vaddr, dma_handle); + return; + } + plat_unmap_dma_mem(dev, dma_handle, size, DMA_BIDIRECTIONAL); if (!plat_device_is_coherent(dev) && !hw_coherentio) diff --git a/arch/openrisc/include/asm/dma-mapping.h b/arch/openrisc/include/asm/dma-mapping.h index a81d6f68e9c8..57722528ea4d 100644 --- a/arch/openrisc/include/asm/dma-mapping.h +++ b/arch/openrisc/include/asm/dma-mapping.h @@ -37,26 +37,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev) #include <asm-generic/dma-mapping-common.h> -static inline void *dma_alloc_noncoherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) -{ - struct dma_attrs attrs; - - dma_set_attr(DMA_ATTR_NON_CONSISTENT, &attrs); - - return dma_alloc_attrs(dev, size, dma_handle, gfp, &attrs); -} - -static inline void dma_free_noncoherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) -{ - struct dma_attrs attrs; - - dma_set_attr(DMA_ATTR_NON_CONSISTENT, &attrs); - - dma_free_attrs(dev, size, cpu_addr, dma_handle, &attrs); -} - static inline int dma_supported(struct device *dev, u64 dma_mask) { /* Support 32 bit DMA mask exclusively */ diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index e6ca63ac4c6c..7971b421c677 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -177,9 +177,6 @@ static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr) return daddr - get_dma_offset(dev); } -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) - #define ARCH_HAS_DMA_MMAP_COHERENT static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h index c29c9c7d81e8..b729efeb9ad8 100644 --- a/arch/s390/include/asm/dma-mapping.h +++ b/arch/s390/include/asm/dma-mapping.h @@ -25,9 +25,6 @@ static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, { } -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) - #include <asm-generic/dma-mapping-common.h> static inline int dma_supported(struct device *dev, u64 mask) diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h index 3c78059e66ff..2c3fa2ccbe9b 100644 --- a/arch/sh/include/asm/dma-mapping.h +++ b/arch/sh/include/asm/dma-mapping.h @@ -38,9 +38,6 @@ static inline int dma_set_mask(struct device *dev, u64 mask) void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction dir); -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) - static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) { struct dma_map_ops *ops = get_dma_ops(dev); diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h index a8c678494ce7..2564edcb9728 100644 --- a/arch/sparc/include/asm/dma-mapping.h +++ b/arch/sparc/include/asm/dma-mapping.h @@ -9,9 +9,6 @@ int dma_supported(struct device *dev, u64 mask); -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) - static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction dir) { diff --git a/arch/tile/include/asm/dma-mapping.h b/arch/tile/include/asm/dma-mapping.h index 4aba10e49310..e982dfa5d2f4 100644 --- a/arch/tile/include/asm/dma-mapping.h +++ b/arch/tile/include/asm/dma-mapping.h @@ -116,9 +116,6 @@ dma_set_mask(struct device *dev, u64 mask) return 0; } -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_attrs(d, s, h, f, NULL) -#define dma_free_noncoherent(d, s, v, h) dma_free_attrs(d, s, v, h, NULL) - /* * dma_alloc_noncoherent() is #defined to return coherent memory, * so there's no need to do any flushing here. diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h index 5294d03e59de..636e942940a0 100644 --- a/arch/unicore32/include/asm/dma-mapping.h +++ b/arch/unicore32/include/asm/dma-mapping.h @@ -80,9 +80,6 @@ static inline int dma_set_mask(struct device *dev, u64 dma_mask) return 0; } -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) - static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, enum dma_data_direction direction) { diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h index f9b1b6cc48b6..7e47e4d6e69c 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h @@ -56,9 +56,6 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) return (dma_addr == DMA_ERROR_CODE); } -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) -#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) - extern int dma_supported(struct device *hwdev, u64 mask); extern int dma_set_mask(struct device *dev, u64 mask); diff --git a/arch/xtensa/include/asm/dma-mapping.h b/arch/xtensa/include/asm/dma-mapping.h index bf24c908e5ff..0a19581375da 100644 --- a/arch/xtensa/include/asm/dma-mapping.h +++ b/arch/xtensa/include/asm/dma-mapping.h @@ -32,9 +32,6 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev) #include <asm-generic/dma-mapping-common.h> -#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_attrs(d, s, h, f, NULL) -#define dma_free_noncoherent(d, s, v, h) dma_free_attrs(d, s, v, h, NULL) - static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) { diff --git a/include/asm-generic/dma-mapping-common.h b/include/asm-generic/dma-mapping-common.h index 56dd9ea2bc8c..ec321dd98f93 100644 --- a/include/asm-generic/dma-mapping-common.h +++ b/include/asm-generic/dma-mapping-common.h @@ -295,4 +295,22 @@ static inline void dma_free_coherent(struct device *dev, size_t size, return dma_free_attrs(dev, size, cpu_addr, dma_handle, NULL); } +static inline void *dma_alloc_noncoherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp) +{ + DEFINE_DMA_ATTRS(attrs); + + dma_set_attr(DMA_ATTR_NON_CONSISTENT, &attrs); + return dma_alloc_attrs(dev, size, dma_handle, gfp, &attrs); +} + +static inline void dma_free_noncoherent(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle) +{ + DEFINE_DMA_ATTRS(attrs); + + dma_set_attr(DMA_ATTR_NON_CONSISTENT, &attrs); + dma_free_attrs(dev, size, cpu_addr, dma_handle, &attrs); +} + #endif |