diff options
45 files changed, 354 insertions, 198 deletions
diff --git a/Documentation/DMA-attributes.txt b/Documentation/DMA-attributes.txt index b768cc0e402b..5c72eed89563 100644 --- a/Documentation/DMA-attributes.txt +++ b/Documentation/DMA-attributes.txt @@ -31,3 +31,21 @@ may be weakly ordered, that is that reads and writes may pass each other. Since it is optional for platforms to implement DMA_ATTR_WEAK_ORDERING, those that do not will simply ignore the attribute and exhibit default behavior. + +DMA_ATTR_WRITE_COMBINE +---------------------- + +DMA_ATTR_WRITE_COMBINE specifies that writes to the mapping may be +buffered to improve performance. + +Since it is optional for platforms to implement DMA_ATTR_WRITE_COMBINE, +those that do not will simply ignore the attribute and exhibit default +behavior. + +DMA_ATTR_NON_CONSISTENT +----------------------- + +DMA_ATTR_NON_CONSISTENT lets the platform to choose to return either +consistent or non-consistent memory as it sees fit. By using this API, +you are guaranteeing to the platform that you have all the correct and +necessary sync points for this memory in the driver. diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h index 4567aca6fdd6..dfa32f061320 100644 --- a/arch/alpha/include/asm/dma-mapping.h +++ b/arch/alpha/include/asm/dma-mapping.h @@ -12,16 +12,22 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev) #include <asm-generic/dma-mapping-common.h> -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs) { - return get_dma_ops(dev)->alloc_coherent(dev, size, dma_handle, gfp); + return get_dma_ops(dev)->alloc(dev, size, dma_handle, gfp, attrs); } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { - get_dma_ops(dev)->free_coherent(dev, size, vaddr, dma_handle); + get_dma_ops(dev)->free(dev, size, vaddr, dma_handle, attrs); } static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c index 04eea4894ef3..df24b76f9246 100644 --- a/arch/alpha/kernel/pci-noop.c +++ b/arch/alpha/kernel/pci-noop.c @@ -108,7 +108,8 @@ sys_pciconfig_write(unsigned long bus, unsigned long dfn, } static void *alpha_noop_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs) { void *ret; @@ -123,7 +124,8 @@ static void *alpha_noop_alloc_coherent(struct device *dev, size_t size, } static void alpha_noop_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_addr) + void *cpu_addr, dma_addr_t dma_addr, + struct dma_attrs *attrs) { free_pages((unsigned long)cpu_addr, get_order(size)); } @@ -174,8 +176,8 @@ static int alpha_noop_set_mask(struct device *dev, u64 mask) } struct dma_map_ops alpha_noop_ops = { - .alloc_coherent = alpha_noop_alloc_coherent, - .free_coherent = alpha_noop_free_coherent, + .alloc = alpha_noop_alloc_coherent, + .free = alpha_noop_free_coherent, .map_page = alpha_noop_map_page, .map_sg = alpha_noop_map_sg, .mapping_error = alpha_noop_mapping_error, diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c index 43610804987d..cd634795aa9c 100644 --- a/arch/alpha/kernel/pci_iommu.c +++ b/arch/alpha/kernel/pci_iommu.c @@ -434,7 +434,8 @@ static void alpha_pci_unmap_page(struct device *dev, dma_addr_t dma_addr, else DMA_ADDRP is undefined. */ static void *alpha_pci_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addrp, gfp_t gfp) + dma_addr_t *dma_addrp, gfp_t gfp, + struct dma_attrs *attrs) { struct pci_dev *pdev = alpha_gendev_to_pci(dev); void *cpu_addr; @@ -478,7 +479,8 @@ try_again: DMA_ADDR past this call are illegal. */ static void alpha_pci_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_addr) + void *cpu_addr, dma_addr_t dma_addr, + struct dma_attrs *attrs) { struct pci_dev *pdev = alpha_gendev_to_pci(dev); pci_unmap_single(pdev, dma_addr, size, PCI_DMA_BIDIRECTIONAL); @@ -952,8 +954,8 @@ static int alpha_pci_set_mask(struct device *dev, u64 mask) } struct dma_map_ops alpha_pci_ops = { - .alloc_coherent = alpha_pci_alloc_coherent, - .free_coherent = alpha_pci_free_coherent, + .alloc = alpha_pci_alloc_coherent, + .free = alpha_pci_free_coherent, .map_page = alpha_pci_map_page, .unmap_page = alpha_pci_unmap_page, .map_sg = alpha_pci_map_sg, diff --git a/arch/hexagon/include/asm/dma-mapping.h b/arch/hexagon/include/asm/dma-mapping.h index 448b224ba4ef..233ed3d2d25e 100644 --- a/arch/hexagon/include/asm/dma-mapping.h +++ b/arch/hexagon/include/asm/dma-mapping.h @@ -71,29 +71,35 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) return (dma_addr == bad_dma_address); } -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { void *ret; struct dma_map_ops *ops = get_dma_ops(dev); BUG_ON(!dma_ops); - ret = ops->alloc_coherent(dev, size, dma_handle, flag); + ret = ops->alloc(dev, size, dma_handle, flag, attrs); debug_dma_alloc_coherent(dev, size, *dma_handle, ret); return ret; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { struct dma_map_ops *dma_ops = get_dma_ops(dev); BUG_ON(!dma_ops); - dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); + dma_ops->free(dev, size, cpu_addr, dma_handle, attrs); debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); } diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c index e711ace62fdf..37302218ca4a 100644 --- a/arch/hexagon/kernel/dma.c +++ b/arch/hexagon/kernel/dma.c @@ -54,7 +54,8 @@ static struct gen_pool *coherent_pool; /* Allocates from a pool of uncached memory that was reserved at boot time */ void *hexagon_dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addr, gfp_t flag) + dma_addr_t *dma_addr, gfp_t flag, + struct dma_attrs *attrs) { void *ret; @@ -81,7 +82,7 @@ void *hexagon_dma_alloc_coherent(struct device *dev, size_t size, } static void hexagon_free_coherent(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_addr) + dma_addr_t dma_addr, struct dma_attrs *attrs) { gen_pool_free(coherent_pool, (unsigned long) vaddr, size); } @@ -202,8 +203,8 @@ static void hexagon_sync_single_for_device(struct device *dev, } struct dma_map_ops hexagon_dma_ops = { - .alloc_coherent = hexagon_dma_alloc_coherent, - .free_coherent = hexagon_free_coherent, + .alloc = hexagon_dma_alloc_coherent, + .free = hexagon_free_coherent, .map_sg = hexagon_map_sg, .map_page = hexagon_map_page, .sync_single_for_cpu = hexagon_sync_single_for_cpu, diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index f6ea3a3b4a84..bcda5b2d121a 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c @@ -1129,7 +1129,8 @@ void sba_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size, * See Documentation/DMA-API-HOWTO.txt */ static void * -sba_alloc_coherent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flags) +sba_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, + gfp_t flags, struct dma_attrs *attrs) { struct ioc *ioc; void *addr; @@ -1191,8 +1192,8 @@ sba_alloc_coherent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp * * See Documentation/DMA-API-HOWTO.txt */ -static void sba_free_coherent (struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_handle) +static void sba_free_coherent(struct device *dev, size_t size, void *vaddr, + dma_addr_t dma_handle, struct dma_attrs *attrs) { sba_unmap_single_attrs(dev, dma_handle, size, 0, NULL); free_pages((unsigned long) vaddr, get_order(size)); @@ -2212,8 +2213,8 @@ sba_page_override(char *str) __setup("sbapagesize=",sba_page_override); struct dma_map_ops sba_dma_ops = { - .alloc_coherent = sba_alloc_coherent, - .free_coherent = sba_free_coherent, + .alloc = sba_alloc_coherent, + .free = sba_free_coherent, .map_page = sba_map_page, .unmap_page = sba_unmap_page, .map_sg = sba_map_sg_attrs, diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h index 4336d080b241..4f5e8148440d 100644 --- a/arch/ia64/include/asm/dma-mapping.h +++ b/arch/ia64/include/asm/dma-mapping.h @@ -23,23 +23,29 @@ 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); -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *daddr, gfp_t gfp) +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *daddr, gfp_t gfp, + struct dma_attrs *attrs) { struct dma_map_ops *ops = platform_dma_get_ops(dev); void *caddr; - caddr = ops->alloc_coherent(dev, size, daddr, gfp); + caddr = ops->alloc(dev, size, daddr, gfp, attrs); debug_dma_alloc_coherent(dev, size, *daddr, caddr); return caddr; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *caddr, dma_addr_t daddr) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *caddr, dma_addr_t daddr, + struct dma_attrs *attrs) { struct dma_map_ops *ops = platform_dma_get_ops(dev); debug_dma_free_coherent(dev, size, caddr, daddr); - ops->free_coherent(dev, size, caddr, daddr); + ops->free(dev, size, caddr, daddr, attrs); } #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c index d9485d952ed0..939260aeac98 100644 --- a/arch/ia64/kernel/pci-swiotlb.c +++ b/arch/ia64/kernel/pci-swiotlb.c @@ -15,16 +15,24 @@ int swiotlb __read_mostly; EXPORT_SYMBOL(swiotlb); static void *ia64_swiotlb_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs) { if (dev->coherent_dma_mask != DMA_BIT_MASK(64)) gfp |= GFP_DMA; return swiotlb_alloc_coherent(dev, size, dma_handle, gfp); } +static void ia64_swiotlb_free_coherent(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_addr, + struct dma_attrs *attrs) +{ + swiotlb_free_coherent(dev, size, vaddr, dma_addr); +} + struct dma_map_ops swiotlb_dma_ops = { - .alloc_coherent = ia64_swiotlb_alloc_coherent, - .free_coherent = swiotlb_free_coherent, + .alloc = ia64_swiotlb_alloc_coherent, + .free = ia64_swiotlb_free_coherent, .map_page = swiotlb_map_page, .unmap_page = swiotlb_unmap_page, .map_sg = swiotlb_map_sg_attrs, diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c index a9d310de57da..3290d6e00c31 100644 --- a/arch/ia64/sn/pci/pci_dma.c +++ b/arch/ia64/sn/pci/pci_dma.c @@ -76,7 +76,8 @@ EXPORT_SYMBOL(sn_dma_set_mask); * more information. */ static void *sn_dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t * dma_handle, gfp_t flags) + dma_addr_t * dma_handle, gfp_t flags, + struct dma_attrs *attrs) { void *cpuaddr; unsigned long phys_addr; @@ -137,7 +138,7 @@ static void *sn_dma_alloc_coherent(struct device *dev, size_t size, * any associated IOMMU mappings. */ static void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, - dma_addr_t dma_handle) + dma_addr_t dma_handle, struct dma_attrs *attrs) { struct pci_dev *pdev = to_pci_dev(dev); struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev); @@ -466,8 +467,8 @@ int sn_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size) } static struct dma_map_ops sn_dma_ops = { - .alloc_coherent = sn_dma_alloc_coherent, - .free_coherent = sn_dma_free_coherent, + .alloc = sn_dma_alloc_coherent, + .free = sn_dma_free_coherent, .map_page = sn_dma_map_page, .unmap_page = sn_dma_unmap_page, .map_sg = sn_dma_map_sg, diff --git a/arch/microblaze/include/asm/dma-mapping.h b/arch/microblaze/include/asm/dma-mapping.h index 3a3e5b886854..01d228286cb0 100644 --- a/arch/microblaze/include/asm/dma-mapping.h +++ b/arch/microblaze/include/asm/dma-mapping.h @@ -123,28 +123,34 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) #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_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) +#define dma_alloc_coherent(d, s, h, f) dma_alloc_attrs(d, s, h, f, NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); void *memory; BUG_ON(!ops); - memory = ops->alloc_coherent(dev, size, dma_handle, flag); + memory = ops->alloc(dev, size, dma_handle, flag, attrs); debug_dma_alloc_coherent(dev, size, *dma_handle, memory); return memory; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d, s, c, h, NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); BUG_ON(!ops); debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); - ops->free_coherent(dev, size, cpu_addr, dma_handle); + ops->free(dev, size, cpu_addr, dma_handle, attrs); } static inline void dma_cache_sync(struct device *dev, void *vaddr, size_t size, diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c index 65a4af4cbbbe..a2bfa2ca5730 100644 --- a/arch/microblaze/kernel/dma.c +++ b/arch/microblaze/kernel/dma.c @@ -33,7 +33,8 @@ static unsigned long get_dma_direct_offset(struct device *dev) #define NOT_COHERENT_CACHE static void *dma_direct_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { #ifdef NOT_COHERENT_CACHE return consistent_alloc(flag, size, dma_handle); @@ -57,7 +58,8 @@ static void *dma_direct_alloc_coherent(struct device *dev, size_t size, } static void dma_direct_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { #ifdef NOT_COHERENT_CACHE consistent_free(size, vaddr); @@ -176,8 +178,8 @@ dma_direct_sync_sg_for_device(struct device *dev, } struct dma_map_ops dma_direct_ops = { - .alloc_coherent = dma_direct_alloc_coherent, - .free_coherent = dma_direct_free_coherent, + .alloc = dma_direct_alloc_coherent, + .free = dma_direct_free_coherent, .map_sg = dma_direct_map_sg, .unmap_sg = dma_direct_unmap_sg, .dma_supported = dma_direct_dma_supported, diff --git a/arch/mips/cavium-octeon/dma-octeon.c b/arch/mips/cavium-octeon/dma-octeon.c index b6bb92c16a47..41dd00884975 100644 --- a/arch/mips/cavium-octeon/dma-octeon.c +++ b/arch/mips/cavium-octeon/dma-octeon.c @@ -157,7 +157,7 @@ static void octeon_dma_sync_sg_for_device(struct device *dev, } static void *octeon_dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) + dma_addr_t *dma_handle, gfp_t gfp, struct dma_attrs *attrs) { void *ret; @@ -192,7 +192,7 @@ static void *octeon_dma_alloc_coherent(struct device *dev, size_t size, } static void octeon_dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *vaddr, dma_addr_t dma_handle, struct dma_attrs *attrs) { int order = get_order(size); @@ -240,8 +240,8 @@ EXPORT_SYMBOL(dma_to_phys); static struct octeon_dma_map_ops octeon_linear_dma_map_ops = { .dma_map_ops = { - .alloc_coherent = octeon_dma_alloc_coherent, - .free_coherent = octeon_dma_free_coherent, + .alloc = octeon_dma_alloc_coherent, + .free = octeon_dma_free_coherent, .map_page = octeon_dma_map_page, .unmap_page = swiotlb_unmap_page, .map_sg = octeon_dma_map_sg, @@ -325,8 +325,8 @@ void __init plat_swiotlb_setup(void) #ifdef CONFIG_PCI static struct octeon_dma_map_ops _octeon_pci_dma_map_ops = { .dma_map_ops = { - .alloc_coherent = octeon_dma_alloc_coherent, - .free_coherent = octeon_dma_free_coherent, + .alloc = octeon_dma_alloc_coherent, + .free = octeon_dma_free_coherent, .map_page = octeon_dma_map_page, .unmap_page = swiotlb_unmap_page, .map_sg = octeon_dma_map_sg, diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h index 7aa37ddfca4b..be39a12901c6 100644 --- a/arch/mips/include/asm/dma-mapping.h +++ b/arch/mips/include/asm/dma-mapping.h @@ -57,25 +57,31 @@ 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); -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs) { void *ret; struct dma_map_ops *ops = get_dma_ops(dev); - ret = ops->alloc_coherent(dev, size, dma_handle, gfp); + ret = ops->alloc(dev, size, dma_handle, gfp, attrs); debug_dma_alloc_coherent(dev, size, *dma_handle, ret); return ret; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); - ops->free_coherent(dev, size, vaddr, dma_handle); + ops->free(dev, size, vaddr, dma_handle, attrs); debug_dma_free_coherent(dev, size, vaddr, dma_handle); } diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c index 46084912e588..3fab2046c8a4 100644 --- a/arch/mips/mm/dma-default.c +++ b/arch/mips/mm/dma-default.c @@ -98,7 +98,7 @@ void *dma_alloc_noncoherent(struct device *dev, size_t size, 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) + dma_addr_t * dma_handle, gfp_t gfp, struct dma_attrs *attrs) { void *ret; @@ -132,7 +132,7 @@ void dma_free_noncoherent(struct device *dev, size_t size, void *vaddr, EXPORT_SYMBOL(dma_free_noncoherent); static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_handle) + dma_addr_t dma_handle, struct dma_attrs *attrs) { unsigned long addr = (unsigned long) vaddr; int order = get_order(size); @@ -323,8 +323,8 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size, EXPORT_SYMBOL(dma_cache_sync); static struct dma_map_ops mips_default_dma_map_ops = { - .alloc_coherent = mips_dma_alloc_coherent, - .free_coherent = mips_dma_free_coherent, + .alloc = mips_dma_alloc_coherent, + .free = mips_dma_free_coherent, .map_page = mips_dma_map_page, .unmap_page = mips_dma_unmap_page, .map_sg = mips_dma_map_sg, diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index dd70fac57ec8..62678e365ca0 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -22,9 +22,11 @@ /* 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); + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs); extern void dma_direct_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle); + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs); #ifdef CONFIG_NOT_COHERENT_CACHE @@ -130,23 +132,29 @@ static inline int dma_supported(struct device *dev, u64 mask) extern int dma_set_mask(struct device *dev, u64 dma_mask); -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { struct dma_map_ops *dma_ops = get_dma_ops(dev); void *cpu_addr; BUG_ON(!dma_ops); - cpu_addr = dma_ops->alloc_coherent(dev, size, dma_handle, flag); + cpu_addr = dma_ops->alloc(dev, size, dma_handle, flag, attrs); debug_dma_alloc_coherent(dev, size, *dma_handle, cpu_addr); return cpu_addr; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { struct dma_map_ops *dma_ops = get_dma_ops(dev); @@ -154,7 +162,7 @@ static inline void dma_free_coherent(struct device *dev, size_t size, debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); - dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); + dma_ops->free(dev, size, cpu_addr, dma_handle, attrs); } static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c index 3f6464b4d970..bcfdcd22c766 100644 --- a/arch/powerpc/kernel/dma-iommu.c +++ b/arch/powerpc/kernel/dma-iommu.c @@ -17,7 +17,8 @@ * to the dma address (mapping) of the first page. */ static void *dma_iommu_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { return iommu_alloc_coherent(dev, get_iommu_table_base(dev), size, dma_handle, dev->coherent_dma_mask, flag, @@ -25,7 +26,8 @@ static void *dma_iommu_alloc_coherent(struct device *dev, size_t size, } static void dma_iommu_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { iommu_free_coherent(get_iommu_table_base(dev), size, vaddr, dma_handle); } @@ -105,8 +107,8 @@ static u64 dma_iommu_get_required_mask(struct device *dev) } struct dma_map_ops dma_iommu_ops = { - .alloc_coherent = dma_iommu_alloc_coherent, - .free_coherent = dma_iommu_free_coherent, + .alloc = dma_iommu_alloc_coherent, + .free = dma_iommu_free_coherent, .map_sg = dma_iommu_map_sg, .unmap_sg = dma_iommu_unmap_sg, .dma_supported = dma_iommu_dma_supported, diff --git a/arch/powerpc/kernel/dma-swiotlb.c b/arch/powerpc/kernel/dma-swiotlb.c index 1ebc9189aada..4ab88dafb235 100644 --- a/arch/powerpc/kernel/dma-swiotlb.c +++ b/arch/powerpc/kernel/dma-swiotlb.c @@ -47,8 +47,8 @@ static u64 swiotlb_powerpc_get_required(struct device *dev) * for everything else. */ struct dma_map_ops swiotlb_dma_ops = { - .alloc_coherent = dma_direct_alloc_coherent, - .free_coherent = dma_direct_free_coherent, + .alloc = dma_direct_alloc_coherent, + .free = dma_direct_free_coherent, .map_sg = swiotlb_map_sg_attrs, .unmap_sg = swiotlb_unmap_sg_attrs, .dma_supported = swiotlb_dma_supported, diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c index 7d0233c12ee3..b1ec983dcec8 100644 --- a/arch/powerpc/kernel/dma.c +++ b/arch/powerpc/kernel/dma.c @@ -26,7 +26,8 @@ void *dma_direct_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { void *ret; #ifdef CONFIG_NOT_COHERENT_CACHE @@ -54,7 +55,8 @@ void *dma_direct_alloc_coherent(struct device *dev, size_t size, } void dma_direct_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { #ifdef CONFIG_NOT_COHERENT_CACHE __dma_free_coherent(size, vaddr); @@ -150,8 +152,8 @@ static inline void dma_direct_sync_single(struct device *dev, #endif struct dma_map_ops dma_direct_ops = { - .alloc_coherent = dma_direct_alloc_coherent, - .free_coherent = dma_direct_free_coherent, + .alloc = dma_direct_alloc_coherent, + .free = dma_direct_free_coherent, .map_sg = dma_direct_map_sg, .unmap_sg = dma_direct_unmap_sg, .dma_supported = dma_direct_dma_supported, diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c index 79bb282e6501..b01d14eeca8d 100644 --- a/arch/powerpc/kernel/ibmebus.c +++ b/arch/powerpc/kernel/ibmebus.c @@ -65,7 +65,8 @@ static struct of_device_id __initdata ibmebus_matches[] = { static void *ibmebus_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, - gfp_t flag) + gfp_t flag, + struct dma_attrs *attrs) { void *mem; @@ -77,7 +78,8 @@ static void *ibmebus_alloc_coherent(struct device *dev, static void ibmebus_free_coherent(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_handle) + dma_addr_t dma_handle, + struct dma_attrs *attrs) { kfree(vaddr); } @@ -136,8 +138,8 @@ static u64 ibmebus_dma_get_required_mask(struct device *dev) } static struct dma_map_ops ibmebus_dma_ops = { - .alloc_coherent = ibmebus_alloc_coherent, - .free_coherent = ibmebus_free_coherent, + .alloc = ibmebus_alloc_coherent, + .free = ibmebus_free_coherent, .map_sg = ibmebus_map_sg, .unmap_sg = ibmebus_unmap_sg, .dma_supported = ibmebus_dma_supported, diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index b2f7c8480bf6..a3a99901c8ec 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -482,7 +482,8 @@ static void vio_cmo_balance(struct work_struct *work) } static void *vio_dma_iommu_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { struct vio_dev *viodev = to_vio_dev(dev); void *ret; @@ -492,7 +493,7 @@ static void *vio_dma_iommu_alloc_coherent(struct device *dev, size_t size, return NULL; } - ret = dma_iommu_ops.alloc_coherent(dev, size, dma_handle, flag); + ret = dma_iommu_ops.alloc(dev, size, dma_handle, flag, attrs); if (unlikely(ret == NULL)) { vio_cmo_dealloc(viodev, roundup(size, PAGE_SIZE)); atomic_inc(&viodev->cmo.allocs_failed); @@ -502,11 +503,12 @@ static void *vio_dma_iommu_alloc_coherent(struct device *dev, size_t size, } static void vio_dma_iommu_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { struct vio_dev *viodev = to_vio_dev(dev); - dma_iommu_ops.free_coherent(dev, size, vaddr, dma_handle); + dma_iommu_ops.free(dev, size, vaddr, dma_handle, attrs); vio_cmo_dealloc(viodev, roundup(size, PAGE_SIZE)); } @@ -607,8 +609,8 @@ static u64 vio_dma_get_required_mask(struct device *dev) } struct dma_map_ops vio_dma_mapping_ops = { - .alloc_coherent = vio_dma_iommu_alloc_coherent, - .free_coherent = vio_dma_iommu_free_coherent, + .alloc = vio_dma_iommu_alloc_coherent, + .free = vio_dma_iommu_free_coherent, .map_sg = vio_dma_iommu_map_sg, .unmap_sg = vio_dma_iommu_unmap_sg, .map_page = vio_dma_iommu_map_page, diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c index ae9fc7bc17d6..b9f509a34c01 100644 --- a/arch/powerpc/platforms/cell/iommu.c +++ b/arch/powerpc/platforms/cell/iommu.c @@ -564,7 +564,8 @@ static struct iommu_table *cell_get_iommu_table(struct device *dev) /* A coherent allocation implies strong ordering */ static void *dma_fixed_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { if (iommu_fixed_is_weak) return iommu_alloc_coherent(dev, cell_get_iommu_table(dev), @@ -572,18 +573,19 @@ static void *dma_fixed_alloc_coherent(struct device *dev, size_t size, device_to_mask(dev), flag, dev_to_node(dev)); else - return dma_direct_ops.alloc_coherent(dev, size, dma_handle, - flag); + return dma_direct_ops.alloc(dev, size, dma_handle, flag, + attrs); } static void dma_fixed_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { if (iommu_fixed_is_weak) iommu_free_coherent(cell_get_iommu_table(dev), size, vaddr, dma_handle); else - dma_direct_ops.free_coherent(dev, size, vaddr, dma_handle); + dma_direct_ops.free(dev, size, vaddr, dma_handle, attrs); } static dma_addr_t dma_fixed_map_page(struct device *dev, struct page *page, @@ -642,8 +644,8 @@ static int dma_fixed_dma_supported(struct device *dev, u64 mask) static int dma_set_mask_and_switch(struct device *dev, u64 dma_mask); struct dma_map_ops dma_iommu_fixed_ops = { - .alloc_coherent = dma_fixed_alloc_coherent, - .free_coherent = dma_fixed_free_coherent, + .alloc = dma_fixed_alloc_coherent, + .free = dma_fixed_free_coherent, .map_sg = dma_fixed_map_sg, .unmap_sg = dma_fixed_unmap_sg, .dma_supported = dma_fixed_dma_supported, diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c index 880eb9ce22c5..5606fe36faf2 100644 --- a/arch/powerpc/platforms/ps3/system-bus.c +++ b/arch/powerpc/platforms/ps3/system-bus.c @@ -515,7 +515,8 @@ core_initcall(ps3_system_bus_init); * to the dma address (mapping) of the first page. */ static void * ps3_alloc_coherent(struct device *_dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { int result; struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); @@ -552,7 +553,7 @@ clean_none: } static void ps3_free_coherent(struct device *_dev, size_t size, void *vaddr, - dma_addr_t dma_handle) + dma_addr_t dma_handle, struct dma_attrs *attrs) { struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); @@ -701,8 +702,8 @@ static u64 ps3_dma_get_required_mask(struct device *_dev) } static struct dma_map_ops ps3_sb_dma_ops = { - .alloc_coherent = ps3_alloc_coherent, - .free_coherent = ps3_free_coherent, + .alloc = ps3_alloc_coherent, + .free = ps3_free_coherent, .map_sg = ps3_sb_map_sg, .unmap_sg = ps3_sb_unmap_sg, .dma_supported = ps3_dma_supported, @@ -712,8 +713,8 @@ static struct dma_map_ops ps3_sb_dma_ops = { }; static struct dma_map_ops ps3_ioc0_dma_ops = { - .alloc_coherent = ps3_alloc_coherent, - .free_coherent = ps3_free_coherent, + .alloc = ps3_alloc_coherent, + .free = ps3_free_coherent, .map_sg = ps3_ioc0_map_sg, .unmap_sg = ps3_ioc0_unmap_sg, .dma_supported = ps3_dma_supported, diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h index 1a73c3e759a7..8bd965e00a15 100644 --- a/arch/sh/include/asm/dma-mapping.h +++ b/arch/sh/include/asm/dma-mapping.h @@ -52,25 +52,31 @@ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) return dma_addr == 0; } -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); void *memory; if (dma_alloc_from_coherent(dev, size, dma_handle, &memory)) return memory; - if (!ops->alloc_coherent) + if (!ops->alloc) return NULL; - memory = ops->alloc_coherent(dev, size, dma_handle, gfp); + memory = ops->alloc(dev, size, dma_handle, gfp, attrs); debug_dma_alloc_coherent(dev, size, *dma_handle, memory); return memory; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); @@ -78,14 +84,16 @@ static inline void dma_free_coherent(struct device *dev, size_t size, return; debug_dma_free_coherent(dev, size, vaddr, dma_handle); - if (ops->free_coherent) - ops->free_coherent(dev, size, vaddr, dma_handle); + if (ops->free) + ops->free(dev, size, vaddr, dma_handle, attrs); } /* arch/sh/mm/consistent.c */ extern void *dma_generic_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addr, gfp_t flag); + dma_addr_t *dma_addr, gfp_t flag, + struct dma_attrs *attrs); extern void dma_generic_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle); + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs); #endif /* __ASM_SH_DMA_MAPPING_H */ diff --git a/arch/sh/kernel/dma-nommu.c b/arch/sh/kernel/dma-nommu.c index 3c55b87f8b63..5b0bfcda6d0b 100644 --- a/arch/sh/kernel/dma-nommu.c +++ b/arch/sh/kernel/dma-nommu.c @@ -63,8 +63,8 @@ static void nommu_sync_sg(struct device *dev, struct scatterlist *sg, #endif struct dma_map_ops nommu_dma_ops = { - .alloc_coherent = dma_generic_alloc_coherent, - .free_coherent = dma_generic_free_coherent, + .alloc = dma_generic_alloc_coherent, + .free = dma_generic_free_coherent, .map_page = nommu_map_page, .map_sg = nommu_map_sg, #ifdef CONFIG_DMA_NONCOHERENT diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c index f251b5f27652..b81d9dbf9fef 100644 --- a/arch/sh/mm/consistent.c +++ b/arch/sh/mm/consistent.c @@ -33,7 +33,8 @@ static int __init dma_init(void) fs_initcall(dma_init); void *dma_generic_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp) + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs) { void *ret, *ret_nocache; int order = get_order(size); @@ -64,7 +65,8 @@ void *dma_generic_alloc_coherent(struct device *dev, size_t size, } void dma_generic_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { int order = get_order(size); unsigned long pfn = dma_handle >> PAGE_SHIFT; diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h index 8c0e4f7bb204..48a7c65731d2 100644 --- a/arch/sparc/include/asm/dma-mapping.h +++ b/arch/sparc/include/asm/dma-mapping.h @@ -26,24 +26,30 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev) #include <asm-generic/dma-mapping-common.h> -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); void *cpu_addr; - cpu_addr = ops->alloc_coherent(dev, size, dma_handle, flag); + cpu_addr = ops->alloc(dev, size, dma_handle, flag, attrs); debug_dma_alloc_coherent(dev, size, *dma_handle, cpu_addr); return cpu_addr; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); - ops->free_coherent(dev, size, cpu_addr, dma_handle); + ops->free(dev, size, cpu_addr, dma_handle, attrs); } static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c index 4643d68713fa..070ed141aac7 100644 --- a/arch/sparc/kernel/iommu.c +++ b/arch/sparc/kernel/iommu.c @@ -280,7 +280,8 @@ static inline void iommu_free_ctx(struct iommu *iommu, int ctx) } static void *dma_4u_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addrp, gfp_t gfp) + dma_addr_t *dma_addrp, gfp_t gfp, + struct dma_attrs *attrs) { unsigned long flags, order, first_page; struct iommu *iommu; @@ -330,7 +331,8 @@ static void *dma_4u_alloc_coherent(struct device *dev, size_t size, } static void dma_4u_free_coherent(struct device *dev, size_t size, - void *cpu, dma_addr_t dvma) + void *cpu, dma_addr_t dvma, + struct dma_attrs *attrs) { struct iommu *iommu; unsigned long flags, order, npages; @@ -825,8 +827,8 @@ static void dma_4u_sync_sg_for_cpu(struct device *dev, } static struct dma_map_ops sun4u_dma_ops = { - .alloc_coherent = dma_4u_alloc_coherent, - .free_coherent = dma_4u_free_coherent, + .alloc = dma_4u_alloc_coherent, + .free = dma_4u_free_coherent, .map_page = dma_4u_map_page, .unmap_page = dma_4u_unmap_page, .map_sg = dma_4u_map_sg, diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index d0479e2163fa..21bd73943f7f 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -261,7 +261,8 @@ EXPORT_SYMBOL(sbus_set_sbus64); * CPU may access them without any explicit flushing. */ static void *sbus_alloc_coherent(struct device *dev, size_t len, - dma_addr_t *dma_addrp, gfp_t gfp) + dma_addr_t *dma_addrp, gfp_t gfp, + struct dma_attrs *attrs) { struct platform_device *op = to_platform_device(dev); unsigned long len_total = PAGE_ALIGN(len); @@ -315,7 +316,7 @@ err_nopages: } static void sbus_free_coherent(struct device *dev, size_t n, void *p, - dma_addr_t ba) + dma_addr_t ba, struct dma_attrs *attrs) { struct resource *res; struct page *pgv; @@ -407,8 +408,8 @@ static void sbus_sync_sg_for_device(struct device *dev, struct scatterlist *sg, } struct dma_map_ops sbus_dma_ops = { - .alloc_coherent = sbus_alloc_coherent, - .free_coherent = sbus_free_coherent, + .alloc = sbus_alloc_coherent, + .free = sbus_free_coherent, .map_page = sbus_map_page, .unmap_page = sbus_unmap_page, .map_sg = sbus_map_sg, @@ -436,7 +437,8 @@ arch_initcall(sparc_register_ioport); * hwdev should be valid struct pci_dev pointer for PCI devices. */ static void *pci32_alloc_coherent(struct device *dev, size_t len, - dma_addr_t *pba, gfp_t gfp) + dma_addr_t *pba, gfp_t gfp, + struct dma_attrs *attrs) { unsigned long len_total = PAGE_ALIGN(len); void *va; @@ -489,7 +491,7 @@ err_nopages: * past this call are illegal. */ static void pci32_free_coherent(struct device *dev, size_t n, void *p, - dma_addr_t ba) + dma_addr_t ba, struct dma_attrs *attrs) { struct resource *res; @@ -645,8 +647,8 @@ static void pci32_sync_sg_for_device(struct device *device, struct scatterlist * } struct dma_map_ops pci32_dma_ops = { - .alloc_coherent = pci32_alloc_coherent, - .free_coherent = pci32_free_coherent, + .alloc = pci32_alloc_coherent, + .free = pci32_free_coherent, .map_page = pci32_map_page, .unmap_page = pci32_unmap_page, .map_sg = pci32_map_sg, diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c index af5755d20fbe..7661e84a05a0 100644 --- a/arch/sparc/kernel/pci_sun4v.c +++ b/arch/sparc/kernel/pci_sun4v.c @@ -128,7 +128,8 @@ static inline long iommu_batch_end(void) } static void *dma_4v_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addrp, gfp_t gfp) + dma_addr_t *dma_addrp, gfp_t gfp, + struct dma_attrs *attrs) { unsigned long flags, order, first_page, npages, n; struct iommu *iommu; @@ -198,7 +199,7 @@ range_alloc_fail: } static void dma_4v_free_coherent(struct device *dev, size_t size, void *cpu, - dma_addr_t dvma) + dma_addr_t dvma, struct dma_attrs *attrs) { struct pci_pbm_info *pbm; struct iommu *iommu; @@ -527,8 +528,8 @@ static void dma_4v_unmap_sg(struct device *dev, struct scatterlist *sglist, } static struct dma_map_ops sun4v_dma_ops = { - .alloc_coherent = dma_4v_alloc_coherent, - .free_coherent = dma_4v_free_coherent, + .alloc = dma_4v_alloc_coherent, + .free = dma_4v_free_coherent, .map_page = dma_4v_map_page, .unmap_page = dma_4v_unmap_page, .map_sg = dma_4v_map_sg, diff --git a/arch/unicore32/include/asm/dma-mapping.h b/arch/unicore32/include/asm/dma-mapping.h index 9258e592f414..366460a81796 100644 --- a/arch/unicore32/include/asm/dma-mapping.h +++ b/arch/unicore32/include/asm/dma-mapping.h @@ -82,20 +82,26 @@ static inline int dma_set_mask(struct device *dev, u64 dma_mask) return 0; } -static inline void *dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + +static inline void *dma_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) { struct dma_map_ops *dma_ops = get_dma_ops(dev); - return dma_ops->alloc_coherent(dev, size, dma_handle, flag); + return dma_ops->alloc(dev, size, dma_handle, flag, attrs); } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *cpu_addr, dma_addr_t dma_handle) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { struct dma_map_ops *dma_ops = get_dma_ops(dev); - dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); + dma_ops->free(dev, size, cpu_addr, dma_handle, attrs); } #define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) diff --git a/arch/unicore32/mm/dma-swiotlb.c b/arch/unicore32/mm/dma-swiotlb.c index bfa9fbb2bbb1..16c08b2143a7 100644 --- a/arch/unicore32/mm/dma-swiotlb.c +++ b/arch/unicore32/mm/dma-swiotlb.c @@ -17,9 +17,23 @@ #include <asm/dma.h> +static void *unicore_swiotlb_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flags, + struct dma_attrs *attrs) +{ + return swiotlb_alloc_coherent(dev, size, dma_handle, flags); +} + +static void unicore_swiotlb_free_coherent(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_addr, + struct dma_attrs *attrs) +{ + swiotlb_free_coherent(dev, size, vaddr, dma_addr); +} + struct dma_map_ops swiotlb_dma_map_ops = { - .alloc_coherent = swiotlb_alloc_coherent, - .free_coherent = swiotlb_free_coherent, + .alloc = unicore_swiotlb_alloc_coherent, + .free = unicore_swiotlb_free_coherent, .map_sg = swiotlb_map_sg_attrs, .unmap_sg = swiotlb_unmap_sg_attrs, .dma_supported = swiotlb_dma_supported, diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h index ed3065fd6314..4b4331d71935 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h @@ -59,7 +59,8 @@ extern int dma_supported(struct device *hwdev, u64 mask); extern int dma_set_mask(struct device *dev, u64 mask); extern void *dma_generic_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addr, gfp_t flag); + dma_addr_t *dma_addr, gfp_t flag, + struct dma_attrs *attrs); static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) { @@ -111,9 +112,11 @@ static inline gfp_t dma_alloc_coherent_gfp_flags(struct device *dev, gfp_t gfp) return gfp; } +#define dma_alloc_coherent(d,s,h,f) dma_alloc_attrs(d,s,h,f,NULL) + static inline void * -dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, - gfp_t gfp) +dma_alloc_attrs(struct device *dev, size_t size, dma_addr_t *dma_handle, + gfp_t gfp, struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); void *memory; @@ -129,18 +132,21 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, if (!is_device_dma_capable(dev)) return NULL; - if (!ops->alloc_coherent) + if (!ops->alloc) return NULL; - memory = ops->alloc_coherent(dev, size, dma_handle, - dma_alloc_coherent_gfp_flags(dev, gfp)); + memory = ops->alloc(dev, size, dma_handle, + dma_alloc_coherent_gfp_flags(dev, gfp), attrs); debug_dma_alloc_coherent(dev, size, *dma_handle, memory); return memory; } -static inline void dma_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t bus) +#define dma_free_coherent(d,s,c,h) dma_free_attrs(d,s,c,h,NULL) + +static inline void dma_free_attrs(struct device *dev, size_t size, + void *vaddr, dma_addr_t bus, + struct dma_attrs *attrs) { struct dma_map_ops *ops = get_dma_ops(dev); @@ -150,8 +156,8 @@ static inline void dma_free_coherent(struct device *dev, size_t size, return; debug_dma_free_coherent(dev, size, vaddr, bus); - if (ops->free_coherent) - ops->free_coherent(dev, size, vaddr, bus); + if (ops->free) + ops->free(dev, size, vaddr, bus, attrs); } #endif diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c index b1e7c7f7a0af..e66311200cbd 100644 --- a/arch/x86/kernel/amd_gart_64.c +++ b/arch/x86/kernel/amd_gart_64.c @@ -477,7 +477,7 @@ error: /* allocate and map a coherent mapping */ static void * gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr, - gfp_t flag) + gfp_t flag, struct dma_attrs *attrs) { dma_addr_t paddr; unsigned long align_mask; @@ -500,7 +500,8 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr, } __free_pages(page, get_order(size)); } else - return dma_generic_alloc_coherent(dev, size, dma_addr, flag); + return dma_generic_alloc_coherent(dev, size, dma_addr, flag, + attrs); return NULL; } @@ -508,7 +509,7 @@ gart_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_addr, /* free a coherent mapping */ static void gart_free_coherent(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_addr) + dma_addr_t dma_addr, struct dma_attrs *attrs) { gart_unmap_page(dev, dma_addr, size, DMA_BIDIRECTIONAL, NULL); free_pages((unsigned long)vaddr, get_order(size)); @@ -700,8 +701,8 @@ static struct dma_map_ops gart_dma_ops = { .unmap_sg = gart_unmap_sg, .map_page = gart_map_page, .unmap_page = gart_unmap_page, - .alloc_coherent = gart_alloc_coherent, - .free_coherent = gart_free_coherent, + .alloc = gart_alloc_coherent, + .free = gart_free_coherent, .mapping_error = gart_mapping_error, }; diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c index 6ac5782f4d6b..d0b2fb9ccbb1 100644 --- a/arch/x86/kernel/pci-calgary_64.c +++ b/arch/x86/kernel/pci-calgary_64.c @@ -430,7 +430,7 @@ static void calgary_unmap_page(struct device *dev, dma_addr_t dma_addr, } static void* calgary_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t flag) + dma_addr_t *dma_handle, gfp_t flag, struct dma_attrs *attrs) { void *ret = NULL; dma_addr_t mapping; @@ -463,7 +463,8 @@ error: } static void calgary_free_coherent(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle) + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs) { unsigned int npages; struct iommu_table *tbl = find_iommu_table(dev); @@ -476,8 +477,8 @@ static void calgary_free_coherent(struct device *dev, size_t size, } static struct dma_map_ops calgary_dma_ops = { - .alloc_coherent = calgary_alloc_coherent, - .free_coherent = calgary_free_coherent, + .alloc = calgary_alloc_coherent, + .free = calgary_free_coherent, .map_sg = calgary_map_sg, .unmap_sg = calgary_unmap_sg, .map_page = calgary_map_page, diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index 28e5e06fcba4..3003250ac51d 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -96,7 +96,8 @@ void __init pci_iommu_alloc(void) } } void *dma_generic_alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addr, gfp_t flag) + dma_addr_t *dma_addr, gfp_t flag, + struct dma_attrs *attrs) { unsigned long dma_mask; struct page *page; diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c index 3af4af810c07..f96050685b46 100644 --- a/arch/x86/kernel/pci-nommu.c +++ b/arch/x86/kernel/pci-nommu.c @@ -75,7 +75,7 @@ static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg, } static void nommu_free_coherent(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_addr) + dma_addr_t dma_addr, struct dma_attrs *attrs) { free_pages((unsigned long)vaddr, get_order(size)); } @@ -96,8 +96,8 @@ static void nommu_sync_sg_for_device(struct device *dev, } struct dma_map_ops nommu_dma_ops = { - .alloc_coherent = dma_generic_alloc_coherent, - .free_coherent = nommu_free_coherent, + .alloc = dma_generic_alloc_coherent, + .free = nommu_free_coherent, .map_sg = nommu_map_sg, .map_page = nommu_map_page, .sync_single_for_device = nommu_sync_single_for_device, diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c index 8f972cbddef0..6c483ba98b9c 100644 --- a/arch/x86/kernel/pci-swiotlb.c +++ b/arch/x86/kernel/pci-swiotlb.c @@ -15,21 +15,30 @@ int swiotlb __read_mostly; static void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size, - dma_addr_t *dma_handle, gfp_t flags) + dma_addr_t *dma_handle, gfp_t flags, + struct dma_attrs *attrs) { void *vaddr; - vaddr = dma_generic_alloc_coherent(hwdev, size, dma_handle, flags); + vaddr = dma_generic_alloc_coherent(hwdev, size, dma_handle, flags, + attrs); if (vaddr) return vaddr; return swiotlb_alloc_coherent(hwdev, size, dma_handle, flags); } +static void x86_swiotlb_free_coherent(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_addr, + struct dma_attrs *attrs) +{ + swiotlb_free_coherent(dev, size, vaddr, dma_addr); +} + static struct dma_map_ops swiotlb_dma_ops = { .mapping_error = swiotlb_dma_mapping_error, - .alloc_coherent = x86_swiotlb_alloc_coherent, - .free_coherent = swiotlb_free_coherent, + .alloc = x86_swiotlb_alloc_coherent, + .free = x86_swiotlb_free_coherent, .sync_single_for_cpu = swiotlb_sync_single_for_cpu, .sync_single_for_device = swiotlb_sync_single_for_device, .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu, diff --git a/arch/x86/xen/pci-swiotlb-xen.c b/arch/x86/xen/pci-swiotlb-xen.c index b480d4207a4c..967633ad98c4 100644 --- a/arch/x86/xen/pci-swiotlb-xen.c +++ b/arch/x86/xen/pci-swiotlb-xen.c @@ -12,8 +12,8 @@ int xen_swiotlb __read_mostly; static struct dma_map_ops xen_swiotlb_dma_ops = { .mapping_error = xen_swiotlb_dma_mapping_error, - .alloc_coherent = xen_swiotlb_alloc_coherent, - .free_coherent = xen_swiotlb_free_coherent, + .alloc = xen_swiotlb_alloc_coherent, + .free = xen_swiotlb_free_coherent, .sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu, .sync_single_for_device = xen_swiotlb_sync_single_for_device, .sync_sg_for_cpu = xen_swiotlb_sync_sg_for_cpu, diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index ae2ec929e52f..a5bee8e2dfce 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -2707,7 +2707,8 @@ static void unmap_sg(struct device *dev, struct scatterlist *sglist, * The exported alloc_coherent function for dma_ops. */ static void *alloc_coherent(struct device *dev, size_t size, - dma_addr_t *dma_addr, gfp_t flag) + dma_addr_t *dma_addr, gfp_t flag, + struct dma_attrs *attrs) { unsigned long flags; void *virt_addr; @@ -2765,7 +2766,8 @@ out_free: * The exported free_coherent function for dma_ops. */ static void free_coherent(struct device *dev, size_t size, - void *virt_addr, dma_addr_t dma_addr) + void *virt_addr, dma_addr_t dma_addr, + struct dma_attrs *attrs) { unsigned long flags; struct protection_domain *domain; @@ -2846,8 +2848,8 @@ static void __init prealloc_protection_domains(void) } static struct dma_map_ops amd_iommu_dma_ops = { - .alloc_coherent = alloc_coherent, - .free_coherent = free_coherent, + .alloc = alloc_coherent, + .free = free_coherent, .map_page = map_page, .unmap_page = unmap_page, .map_sg = map_sg, diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 132f93b05154..f93d5ac8f81c 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -2949,7 +2949,8 @@ static void intel_unmap_page(struct device *dev, dma_addr_t dev_addr, } static void *intel_alloc_coherent(struct device *hwdev, size_t size, - dma_addr_t *dma_handle, gfp_t flags) + dma_addr_t *dma_handle, gfp_t flags, + struct dma_attrs *attrs) { void *vaddr; int order; @@ -2981,7 +2982,7 @@ static void *intel_alloc_coherent(struct device *hwdev, size_t size, } static void intel_free_coherent(struct device *hwdev, size_t size, void *vaddr, - dma_addr_t dma_handle) + dma_addr_t dma_handle, struct dma_attrs *attrs) { int order; @@ -3126,8 +3127,8 @@ static int intel_mapping_error(struct device *dev, dma_addr_t dma_addr) } struct dma_map_ops intel_dma_ops = { - .alloc_coherent = intel_alloc_coherent, - .free_coherent = intel_free_coherent, + .alloc = intel_alloc_coherent, + .free = intel_free_coherent, .map_sg = intel_map_sg, .unmap_sg = intel_unmap_sg, .map_page = intel_map_page, diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index 19e6a2041371..1afb4fba11b4 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -204,7 +204,8 @@ error: void * xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size, - dma_addr_t *dma_handle, gfp_t flags) + dma_addr_t *dma_handle, gfp_t flags, + struct dma_attrs *attrs) { void *ret; int order = get_order(size); @@ -253,7 +254,7 @@ EXPORT_SYMBOL_GPL(xen_swiotlb_alloc_coherent); void xen_swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr, - dma_addr_t dev_addr) + dma_addr_t dev_addr, struct dma_attrs *attrs) { int order = get_order(size); phys_addr_t phys; diff --git a/include/linux/dma-attrs.h b/include/linux/dma-attrs.h index 71ad34eca6e3..547ab568d3ae 100644 --- a/include/linux/dma-attrs.h +++ b/include/linux/dma-attrs.h @@ -13,6 +13,8 @@ enum dma_attr { DMA_ATTR_WRITE_BARRIER, DMA_ATTR_WEAK_ORDERING, + DMA_ATTR_WRITE_COMBINE, + DMA_ATTR_NON_CONSISTENT, DMA_ATTR_MAX, }; diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h index 5a736af3cc7a..dfc099e56a66 100644 --- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -9,10 +9,15 @@ #include <linux/scatterlist.h> struct dma_map_ops { - void* (*alloc_coherent)(struct device *dev, size_t size, - dma_addr_t *dma_handle, gfp_t gfp); - void (*free_coherent)(struct device *dev, size_t size, - void *vaddr, dma_addr_t dma_handle); + void* (*alloc)(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t gfp, + struct dma_attrs *attrs); + void (*free)(struct device *dev, size_t size, + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs); + int (*mmap)(struct device *, struct vm_area_struct *, + void *, dma_addr_t, size_t, struct dma_attrs *attrs); + dma_addr_t (*map_page)(struct device *dev, struct page *page, unsigned long offset, size_t size, enum dma_data_direction dir, diff --git a/include/xen/swiotlb-xen.h b/include/xen/swiotlb-xen.h index 2ea2fdc79c16..4f4d449f00f6 100644 --- a/include/xen/swiotlb-xen.h +++ b/include/xen/swiotlb-xen.h @@ -7,11 +7,13 @@ extern void xen_swiotlb_init(int verbose); extern void *xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size, - dma_addr_t *dma_handle, gfp_t flags); + dma_addr_t *dma_handle, gfp_t flags, + struct dma_attrs *attrs); extern void xen_swiotlb_free_coherent(struct device *hwdev, size_t size, - void *vaddr, dma_addr_t dma_handle); + void *vaddr, dma_addr_t dma_handle, + struct dma_attrs *attrs); extern dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page, unsigned long offset, size_t size, |
