diff options
Diffstat (limited to 'arch')
25 files changed, 449 insertions, 740 deletions
diff --git a/arch/ia64/dig/Makefile b/arch/ia64/dig/Makefile index 5c02838..2f7cadd 100644 --- a/arch/ia64/dig/Makefile +++ b/arch/ia64/dig/Makefile @@ -7,8 +7,8 @@ obj-y := setup.o ifeq ($(CONFIG_DMAR), y) -obj-$(CONFIG_IA64_GENERIC) += machvec.o machvec_vtd.o dig_vtd_iommu.o +obj-$(CONFIG_IA64_GENERIC) += machvec.o machvec_vtd.o else obj-$(CONFIG_IA64_GENERIC) += machvec.o endif -obj-$(CONFIG_IA64_DIG_VTD) += dig_vtd_iommu.o + diff --git a/arch/ia64/dig/dig_vtd_iommu.c b/arch/ia64/dig/dig_vtd_iommu.c deleted file mode 100644 index 1c8a079..0000000 --- a/arch/ia64/dig/dig_vtd_iommu.c +++ /dev/null @@ -1,59 +0,0 @@ -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/intel-iommu.h> - -void * -vtd_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, - gfp_t flags) -{ - return intel_alloc_coherent(dev, size, dma_handle, flags); -} -EXPORT_SYMBOL_GPL(vtd_alloc_coherent); - -void -vtd_free_coherent(struct device *dev, size_t size, void *vaddr, - dma_addr_t dma_handle) -{ - intel_free_coherent(dev, size, vaddr, dma_handle); -} -EXPORT_SYMBOL_GPL(vtd_free_coherent); - -dma_addr_t -vtd_map_single_attrs(struct device *dev, void *addr, size_t size, - int dir, struct dma_attrs *attrs) -{ - return intel_map_single(dev, (phys_addr_t)addr, size, dir); -} -EXPORT_SYMBOL_GPL(vtd_map_single_attrs); - -void -vtd_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size, - int dir, struct dma_attrs *attrs) -{ - intel_unmap_single(dev, iova, size, dir); -} -EXPORT_SYMBOL_GPL(vtd_unmap_single_attrs); - -int -vtd_map_sg_attrs(struct device *dev, struct scatterlist *sglist, int nents, - int dir, struct dma_attrs *attrs) -{ - return intel_map_sg(dev, sglist, nents, dir); -} -EXPORT_SYMBOL_GPL(vtd_map_sg_attrs); - -void -vtd_unmap_sg_attrs(struct device *dev, struct scatterlist *sglist, - int nents, int dir, struct dma_attrs *attrs) -{ - intel_unmap_sg(dev, sglist, nents, dir); -} -EXPORT_SYMBOL_GPL(vtd_unmap_sg_attrs); - -int -vtd_dma_mapping_error(struct device *dev, dma_addr_t dma_addr) -{ - return 0; -} -EXPORT_SYMBOL_GPL(vtd_dma_mapping_error); diff --git a/arch/ia64/hp/common/hwsw_iommu.c b/arch/ia64/hp/common/hwsw_iommu.c index 2769dbf..e4a80d8 100644 --- a/arch/ia64/hp/common/hwsw_iommu.c +++ b/arch/ia64/hp/common/hwsw_iommu.c @@ -13,49 +13,34 @@ */ #include <linux/device.h> +#include <linux/dma-mapping.h> #include <linux/swiotlb.h> - #include <asm/machvec.h> +extern struct dma_map_ops sba_dma_ops, swiotlb_dma_ops; + /* swiotlb declarations & definitions: */ extern int swiotlb_late_init_with_default_size (size_t size); -/* hwiommu declarations & definitions: */ - -extern ia64_mv_dma_alloc_coherent sba_alloc_coherent; -extern ia64_mv_dma_free_coherent sba_free_coherent; -extern ia64_mv_dma_map_single_attrs sba_map_single_attrs; -extern ia64_mv_dma_unmap_single_attrs sba_unmap_single_attrs; -extern ia64_mv_dma_map_sg_attrs sba_map_sg_attrs; -extern ia64_mv_dma_unmap_sg_attrs sba_unmap_sg_attrs; -extern ia64_mv_dma_supported sba_dma_supported; -extern ia64_mv_dma_mapping_error sba_dma_mapping_error; - -#define hwiommu_alloc_coherent sba_alloc_coherent -#define hwiommu_free_coherent sba_free_coherent -#define hwiommu_map_single_attrs sba_map_single_attrs -#define hwiommu_unmap_single_attrs sba_unmap_single_attrs -#define hwiommu_map_sg_attrs sba_map_sg_attrs -#define hwiommu_unmap_sg_attrs sba_unmap_sg_attrs -#define hwiommu_dma_supported sba_dma_supported -#define hwiommu_dma_mapping_error sba_dma_mapping_error -#define hwiommu_sync_single_for_cpu machvec_dma_sync_single -#define hwiommu_sync_sg_for_cpu machvec_dma_sync_sg -#define hwiommu_sync_single_for_device machvec_dma_sync_single -#define hwiommu_sync_sg_for_device machvec_dma_sync_sg - - /* * Note: we need to make the determination of whether or not to use * the sw I/O TLB based purely on the device structure. Anything else * would be unreliable or would be too intrusive. */ -static inline int -use_swiotlb (struct device *dev) +static inline int use_swiotlb(struct device *dev) { - return dev && dev->dma_mask && !hwiommu_dma_supported(dev, *dev->dma_mask); + return dev && dev->dma_mask && + !sba_dma_ops.dma_supported(dev, *dev->dma_mask); } +struct dma_map_ops *hwsw_dma_get_ops(struct device *dev) +{ + if (use_swiotlb(dev)) + return &swiotlb_dma_ops; + return &sba_dma_ops; +} +EXPORT_SYMBOL(hwsw_dma_get_ops); + void __init hwsw_init (void) { @@ -71,125 +56,3 @@ hwsw_init (void) #endif } } - -void * -hwsw_alloc_coherent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flags) -{ - if (use_swiotlb(dev)) - return swiotlb_alloc_coherent(dev, size, dma_handle, flags); - else - return hwiommu_alloc_coherent(dev, size, dma_handle, flags); -} - -void -hwsw_free_coherent (struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle) -{ - if (use_swiotlb(dev)) - swiotlb_free_coherent(dev, size, vaddr, dma_handle); - else - hwiommu_free_coherent(dev, size, vaddr, dma_handle); -} - -dma_addr_t -hwsw_map_single_attrs(struct device *dev, void *addr, size_t size, int dir, - struct dma_attrs *attrs) -{ - if (use_swiotlb(dev)) - return swiotlb_map_single_attrs(dev, addr, size, dir, attrs); - else - return hwiommu_map_single_attrs(dev, addr, size, dir, attrs); -} -EXPORT_SYMBOL(hwsw_map_single_attrs); - -void -hwsw_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size, - int dir, struct dma_attrs *attrs) -{ - if (use_swiotlb(dev)) - return swiotlb_unmap_single_attrs(dev, iova, size, dir, attrs); - else - return hwiommu_unmap_single_attrs(dev, iova, size, dir, attrs); -} -EXPORT_SYMBOL(hwsw_unmap_single_attrs); - -int -hwsw_map_sg_attrs(struct device *dev, struct scatterlist *sglist, int nents, - int dir, struct dma_attrs *attrs) -{ - if (use_swiotlb(dev)) - return swiotlb_map_sg_attrs(dev, sglist, nents, dir, attrs); - else - return hwiommu_map_sg_attrs(dev, sglist, nents, dir, attrs); -} -EXPORT_SYMBOL(hwsw_map_sg_attrs); - -void -hwsw_unmap_sg_attrs(struct device *dev, struct scatterlist *sglist, int nents, - int dir, struct dma_attrs *attrs) -{ - if (use_swiotlb(dev)) - return swiotlb_unmap_sg_attrs(dev, sglist, nents, dir, attrs); - else - return hwiommu_unmap_sg_attrs(dev, sglist, nents, dir, attrs); -} -EXPORT_SYMBOL(hwsw_unmap_sg_attrs); - -void -hwsw_sync_single_for_cpu (struct device *dev, dma_addr_t addr, size_t size, int dir) -{ - if (use_swiotlb(dev)) - swiotlb_sync_single_for_cpu(dev, addr, size, dir); - else - hwiommu_sync_single_for_cpu(dev, addr, size, dir); -} - -void -hwsw_sync_sg_for_cpu (struct device *dev, struct scatterlist *sg, int nelems, int dir) -{ - if (use_swiotlb(dev)) - swiotlb_sync_sg_for_cpu(dev, sg, nelems, dir); - else - hwiommu_sync_sg_for_cpu(dev, sg, nelems, dir); -} - -void -hwsw_sync_single_for_device (struct device *dev, dma_addr_t addr, size_t size, int dir) -{ - if (use_swiotlb(dev)) - swiotlb_sync_single_for_device(dev, addr, size, dir); - else - hwiommu_sync_single_for_device(dev, addr, size, dir); -} - -void -hwsw_sync_sg_for_device (struct device *dev, struct scatterlist *sg, int nelems, int dir) -{ - if (use_swiotlb(dev)) - swiotlb_sync_sg_for_device(dev, sg, nelems, dir); - else - hwiommu_sync_sg_for_device(dev, sg, nelems, dir); -} - -int -hwsw_dma_supported (struct device *dev, u64 mask) -{ - if (hwiommu_dma_supported(dev, mask)) - return 1; - return swiotlb_dma_supported(dev, mask); -} - -int -hwsw_dma_mapping_error(struct device *dev, dma_addr_t dma_addr) -{ - return hwiommu_dma_mapping_error(dev, dma_addr) || - swiotlb_dma_mapping_error(dev, dma_addr); -} - -EXPORT_SYMBOL(hwsw_dma_mapping_error); -EXPORT_SYMBOL(hwsw_dma_supported); -EXPORT_SYMBOL(hwsw_alloc_coherent); -EXPORT_SYMBOL(hwsw_free_coherent); -EXPORT_SYMBOL(hwsw_sync_single_for_cpu); -EXPORT_SYMBOL(hwsw_sync_single_for_device); -EXPORT_SYMBOL(hwsw_sync_sg_for_cpu); -EXPORT_SYMBOL(hwsw_sync_sg_for_device); diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index d98f0f4..129b62e 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c @@ -36,6 +36,7 @@ #include <linux/bitops.h> /* hweight64() */ #include <linux/crash_dump.h> #include <linux/iommu-helper.h> +#include <linux/dma-mapping.h> #include <asm/delay.h> /* ia64_get_itc() */ #include <asm/io.h> @@ -908,11 +909,13 @@ sba_mark_invalid(struct ioc *ioc, dma_addr_t iova, size_t byte_cnt) * * See Documentation/DMA-mapping.txt */ -dma_addr_t -sba_map_single_attrs(struct device *dev, void *addr, size_t size, int dir, - struct dma_attrs *attrs) +static dma_addr_t sba_map_page(struct device *dev, struct page *page, + unsigned long poff, size_t size, + enum dma_data_direction dir, + struct dma_attrs *attrs) { struct ioc *ioc; + void *addr = page_address(page) + poff; dma_addr_t iovp; dma_addr_t offset; u64 *pdir_start; @@ -990,7 +993,14 @@ sba_map_single_attrs(struct device *dev, void *addr, size_t size, int dir, #endif return SBA_IOVA(ioc, iovp, offset); } -EXPORT_SYMBOL(sba_map_single_attrs); + +static dma_addr_t sba_map_single_attrs(struct device *dev, void *addr, + size_t size, enum dma_data_direction dir, + struct dma_attrs *attrs) +{ + return sba_map_page(dev, virt_to_page(addr), + (unsigned long)addr & ~PAGE_MASK, size, dir, attrs); +} #ifdef ENABLE_MARK_CLEAN static SBA_INLINE void @@ -1026,8 +1036,8 @@ sba_mark_clean(struct ioc *ioc, dma_addr_t iova, size_t size) * * See Documentation/DMA-mapping.txt */ -void sba_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size, - int dir, struct dma_attrs *attrs) +static void sba_unmap_page(struct device *dev, dma_addr_t iova, size_t size, + enum dma_data_direction dir, struct dma_attrs *attrs) { struct ioc *ioc; #if DELAYED_RESOURCE_CNT > 0 @@ -1094,7 +1104,12 @@ void sba_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size, spin_unlock_irqrestore(&ioc->res_lock, flags); #endif /* DELAYED_RESOURCE_CNT == 0 */ } -EXPORT_SYMBOL(sba_unmap_single_attrs); + +void sba_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size, + enum dma_data_direction dir, struct dma_attrs *attrs) +{ + sba_unmap_page(dev, iova, size, dir, attrs); +} /** * sba_alloc_coherent - allocate/map shared mem for DMA @@ -1104,7 +1119,7 @@ EXPORT_SYMBOL(sba_unmap_single_attrs); * * See Documentation/DMA-mapping.txt */ -void * +static void * sba_alloc_coherent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flags) { struct ioc *ioc; @@ -1167,7 +1182,8 @@ sba_alloc_coherent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp * * See Documentation/DMA-mapping.txt */ -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) { sba_unmap_single_attrs(dev, dma_handle, size, 0, NULL); free_pages((unsigned long) vaddr, get_order(size)); @@ -1422,8 +1438,9 @@ sba_coalesce_chunks(struct ioc *ioc, struct device *dev, * * See Documentation/DMA-mapping.txt */ -int sba_map_sg_attrs(struct device *dev, struct scatterlist *sglist, int nents, - int dir, struct dma_attrs *attrs) +static int sba_map_sg_attrs(struct device *dev, struct scatterlist *sglist, + int nents, enum dma_data_direction dir, + struct dma_attrs *attrs) { struct ioc *ioc; int coalesced, filled = 0; @@ -1502,7 +1519,6 @@ int sba_map_sg_attrs(struct device *dev, struct scatterlist *sglist, int nents, return filled; } -EXPORT_SYMBOL(sba_map_sg_attrs); /** * sba_unmap_sg_attrs - unmap Scatter/Gather list @@ -1514,8 +1530,9 @@ EXPORT_SYMBOL(sba_map_sg_attrs); * * See Documentation/DMA-mapping.txt */ -void sba_unmap_sg_attrs(struct device *dev, struct scatterlist *sglist, - int nents, int dir, struct dma_attrs *attrs) +static void sba_unmap_sg_attrs(struct device *dev, struct scatterlist *sglist, + int nents, enum dma_data_direction dir, + struct dma_attrs *attrs) { #ifdef ASSERT_PDIR_SANITY struct ioc *ioc; @@ -1551,7 +1568,6 @@ void sba_unmap_sg_attrs(struct device *dev, struct scatterlist *sglist, #endif } -EXPORT_SYMBOL(sba_unmap_sg_attrs); /************************************************************** * @@ -2064,6 +2080,8 @@ static struct acpi_driver acpi_sba_ioc_driver = { }, }; +extern struct dma_map_ops swiotlb_dma_ops; + static int __init sba_init(void) { @@ -2077,6 +2095,7 @@ sba_init(void) * a successful kdump kernel boot is to use the swiotlb. */ if (is_kdump_kernel()) { + dma_ops = &swiotlb_dma_ops; if (swiotlb_late_init_with_default_size(64 * (1<<20)) != 0) panic("Unable to initialize software I/O TLB:" " Try machvec=dig boot option"); @@ -2092,6 +2111,7 @@ sba_init(void) * If we didn't find something sba_iommu can claim, we * need to setup the swiotlb and switch to the dig machvec. */ + dma_ops = &swiotlb_dma_ops; if (swiotlb_late_init_with_default_size(64 * (1<<20)) != 0) panic("Unable to find SBA IOMMU or initialize " "software I/O TLB: Try machvec=dig boot option"); @@ -2138,15 +2158,13 @@ nosbagart(char *str) return 1; } -int -sba_dma_supported (struct device *dev, u64 mask) +static int sba_dma_supported (struct device *dev, u64 mask) { /* make sure it's at least 32bit capable */ return ((mask & 0xFFFFFFFFUL) == 0xFFFFFFFFUL); } -int -sba_dma_mapping_error(struct device *dev, dma_addr_t dma_addr) +static int sba_dma_mapping_error(struct device *dev, dma_addr_t dma_addr) { return 0; } @@ -2176,7 +2194,22 @@ sba_page_override(char *str) __setup("sbapagesize=",sba_page_override); -EXPORT_SYMBOL(sba_dma_mapping_error); -EXPORT_SYMBOL(sba_dma_supported); -EXPORT_SYMBOL(sba_alloc_coherent); -EXPORT_SYMBOL(sba_free_coherent); +struct dma_map_ops sba_dma_ops = { + .alloc_coherent = sba_alloc_coherent, + .free_coherent = sba_free_coherent, + .map_page = sba_map_page, + .unmap_page = sba_unmap_page, + .map_sg = sba_map_sg_attrs, + .unmap_sg = sba_unmap_sg_attrs, + .sync_single_for_cpu = machvec_dma_sync_single, + .sync_sg_for_cpu = machvec_dma_sync_sg, + .sync_single_for_device = machvec_dma_sync_single, + .sync_sg_for_device = machvec_dma_sync_sg, + .dma_supported = sba_dma_supported, + .mapping_error = sba_dma_mapping_error, +}; + +void sba_dma_init(void) +{ + dma_ops = &sba_dma_ops; +} diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h index 1f912d9..abe5257 100644 --- a/arch/ia64/include/asm/dma-mapping.h +++ b/arch/ia64/include/asm/dma-mapping.h @@ -11,99 +11,128 @@ #define ARCH_HAS_DMA_GET_REQUIRED_MASK -struct dma_mapping_ops { - int (*mapping_error)(struct device *dev, - dma_addr_t dma_addr); - 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); - dma_addr_t (*map_single)(struct device *hwdev, unsigned long ptr, - size_t size, int direction); - void (*unmap_single)(struct device *dev, dma_addr_t addr, - size_t size, int direction); - void (*sync_single_for_cpu)(struct device *hwdev, - dma_addr_t dma_handle, size_t size, - int direction); - void (*sync_single_for_device)(struct device *hwdev, - dma_addr_t dma_handle, size_t size, - int direction); - void (*sync_single_range_for_cpu)(struct device *hwdev, - dma_addr_t dma_handle, unsigned long offset, - size_t size, int direction); - void (*sync_single_range_for_device)(struct device *hwdev, - dma_addr_t dma_handle, unsigned long offset, - size_t size, int direction); - void (*sync_sg_for_cpu)(struct device *hwdev, - struct scatterlist *sg, int nelems, - int direction); - void (*sync_sg_for_device)(struct device *hwdev, - struct scatterlist *sg, int nelems, - int direction); - int (*map_sg)(struct device *hwdev, struct scatterlist *sg, - int nents, int direction); - void (*unmap_sg)(struct device *hwdev, - struct scatterlist *sg, int nents, - int direction); - int (*dma_supported_op)(struct device *hwdev, u64 mask); - int is_phys; -}; - -extern struct dma_mapping_ops *dma_ops; +extern struct dma_map_ops *dma_ops; extern struct ia64_machine_vector ia64_mv; extern void set_iommu_machvec(void); -#define dma_alloc_coherent(dev, size, handle, gfp) \ - platform_dma_alloc_coherent(dev, size, handle, (gfp) | GFP_DMA) +extern void machvec_dma_sync_single(struct device *, dma_addr_t, size_t, + enum dma_data_direction); +extern void machvec_dma_sync_sg(struct device *, struct scatterlist *, int, + enum dma_data_direction); -/* coherent mem. is cheap */ -static inline void * -dma_alloc_noncoherent(struct device *dev, size_t size, dma_addr_t *dma_handle, - gfp_t flag) +static inline void *dma_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *daddr, gfp_t gfp) { - return dma_alloc_coherent(dev, size, dma_handle, flag); + struct dma_map_ops *ops = platform_dma_get_ops(dev); + return ops->alloc_coherent(dev, size, daddr, gfp | GFP_DMA); } -#define dma_free_coherent platform_dma_free_coherent -static inline void -dma_free_noncoherent(struct device *dev, size_t size, void *cpu_addr, - dma_addr_t dma_handle) + +static inline void dma_free_coherent(struct device *dev, size_t size, + void *caddr, dma_addr_t daddr) +{ + struct dma_map_ops *ops = platform_dma_get_ops(dev); + ops->free_coherent(dev, size, caddr, daddr); +} + +#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 dma_addr_t dma_map_single_attrs(struct device *dev, + void *caddr, size_t size, + enum dma_data_direction dir, + struct dma_attrs *attrs) +{ + struct dma_map_ops *ops = platform_dma_get_ops(dev); + return ops->map_page(dev, virt_to_page(caddr), + (unsigned long)caddr & ~PAGE_MASK, size, + dir, attrs); +} + +static inline void dma_unmap_single_attrs(struct device *dev, dma_addr_t daddr, + size_t size, + enum dma_data_direction dir, + struct dma_attrs *attrs) +{ + struct dma_map_ops *ops = platform_dma_get_ops(dev); + ops->unmap_page(dev, daddr, size, dir, attrs); +} + +#define dma_map_single(d, a, s, r) dma_map_single_attrs(d, a, s, r, NULL) +#define dma_unmap_single(d, a, s, r) dma_unmap_single_attrs(d, a, s, r, NULL) + +static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl, + int nents, enum dma_data_direction dir, + struct dma_attrs *attrs) +{ + struct dma_map_ops *ops = platform_dma_get_ops(dev); + return ops->map_sg(dev, sgl, nents, dir, attrs); +} + +static inline void dma_unmap_sg_attrs(struct device *dev, + struct scatterlist *sgl, int nents, + enum dma_data_direction dir, + struct dma_attrs *attrs) +{ + struct dma_map_ops *ops = platform_dma_get_ops(dev); + ops->unmap_sg(dev, sgl, nents, dir, attrs); +} + +#define dma_map_sg(d, s, n, r) dma_map_sg_attrs(d, s, n, r, NULL) +#define dma_unmap_sg(d, s, n, r) dma_unmap_sg_attrs(d, s, n, r, NULL) + +static inline void dma_sync_single_for_cpu(struct device *dev, dma_addr_t daddr, + size_t size, + enum dma_data_direction dir) { - dma_free_coherent(dev, size, cpu_addr, dma_handle); + struct dma_map_ops *ops = platform_dma_get_ops(dev); + ops->sync_single_for_cpu(dev, daddr, size, dir); } -#define dma_map_single_attrs platform_dma_map_single_attrs -static inline dma_addr_t dma_map_single(struct device *dev, void *cpu_addr, - size_t size, int dir) + +static inline void dma_sync_sg_for_cpu(struct device *dev, + struct scatterlist *sgl, + int nents, enum dma_data_direction dir) { - return dma_map_single_attrs(dev, cpu_addr, size, dir, NULL); + struct dma_map_ops *ops = platform_dma_get_ops(dev); + ops->sync_sg_for_cpu(dev, sgl, nents, dir); } -#define dma_map_sg_attrs platform_dma_map_sg_attrs -static inline int dma_map_sg(struct device *dev, struct scatterlist *sgl, - int nents, int dir) + +static inline void dma_sync_single_for_device(struct device *dev, + dma_addr_t daddr, + size_t size, + enum dma_data_direction dir) { - return dma_map_sg_attrs(dev, sgl, nents, dir, NULL); + struct dma_map_ops *ops = platform_dma_get_ops(dev); + ops->sync_single_for_device(dev, daddr, size, dir); } -#define dma_unmap_single_attrs platform_dma_unmap_single_attrs -static inline void dma_unmap_single(struct device *dev, dma_addr_t cpu_addr, - size_t size, int dir) + +static inline void dma_sync_sg_for_device(struct device *dev, + struct scatterlist *sgl, + int nents, + enum dma_data_direction dir) { - return dma_unmap_single_attrs(dev, cpu_addr, size, dir, NULL); + struct dma_map_ops *ops = platform_dma_get_ops(dev); + ops->sync_sg_for_device(dev, sgl, nents, dir); } -#define dma_unmap_sg_attrs platform_dma_unmap_sg_attrs -static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sgl, - int nents, int dir) + +static inline int dma_mapping_error(struct device *dev, dma_addr_t daddr) +{ + struct dma_map_ops *ops = platform_dma_get_ops(dev); + return ops->mapping_error(dev, daddr); +} + +static inline dma_addr_t dma_map_page(struct device *dev, struct page *page, + size_t offset, size_t size, + enum dma_data_direction dir) { - return dma_unmap_sg_attrs(dev, sgl, nents, dir, NULL); + struct dma_map_ops *ops = platform_dma_get_ops(dev); + return ops->map_page(dev, page, offset, size, dir, NULL); } -#define dma_sync_single_for_cpu platform_dma_sync_single_for_cpu -#define dma_sync_sg_for_cpu platform_dma_sync_sg_for_cpu -#define dma_sync_single_for_device platform_dma_sync_single_for_device -#define dma_sync_sg_for_device platform_dma_sync_sg_for_device -#define dma_mapping_error platform_dma_mapping_error -#define dma_map_page(dev, pg, off, size, dir) \ - dma_map_single(dev, page_address(pg) + (off), (size), (dir)) -#define dma_unmap_page(dev, dma_addr, size, dir) \ - dma_unmap_single(dev, dma_addr, size, dir) +static inline void dma_unmap_page(struct device *dev, dma_addr_t addr, + size_t size, enum dma_data_direction dir) +{ + dma_unmap_single(dev, addr, size, dir); +} /* * Rest of this file is part of the "Advanced DMA API". Use at your own risk. @@ -115,7 +144,11 @@ static inline void dma_unmap_sg(struct device *dev, struct scatterlist *sgl, #define dma_sync_single_range_for_device(dev, dma_handle, offset, size, dir) \ dma_sync_single_for_device(dev, dma_handle, size, dir) -#define dma_supported platform_dma_supported +static inline int dma_supported(struct device *dev, u64 mask) +{ + struct dma_map_ops *ops = platform_dma_get_ops(dev); + return ops->dma_supported(dev, mask); +} static inline int dma_set_mask (struct device *dev, u64 mask) @@ -141,11 +174,4 @@ dma_cache_sync (struct device *dev, void *vaddr, size_t size, #define dma_is_consistent(d, h) (1) /* all we do is coherent memory... */ -static inline struct dma_mapping_ops *get_dma_ops(struct device *dev) -{ - return dma_ops; -} - - - #endif /* _ASM_IA64_DMA_MAPPING_H */ diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h index fe87b21..367d299 100644 --- a/arch/ia64/include/asm/machvec.h +++ b/arch/ia64/include/asm/machvec.h @@ -11,7 +11,6 @@ #define _ASM_IA64_MACHVEC_H #include <linux/types.h> -#include <linux/swiotlb.h> /* forward declarations: */ struct device; @@ -45,24 +44,8 @@ typedef void ia64_mv_kernel_launch_event_t(void); /* DMA-mapping interface: */ typedef void ia64_mv_dma_init (void); -typedef void *ia64_mv_dma_alloc_coherent (struct device *, size_t, dma_addr_t *, gfp_t); -typedef void ia64_mv_dma_free_coherent (struct device *, size_t, void *, dma_addr_t); -typedef dma_addr_t ia64_mv_dma_map_single (struct device *, void *, size_t, int); -typedef void ia64_mv_dma_unmap_single (struct device *, dma_addr_t, size_t, int); -typedef int ia64_mv_dma_map_sg (struct device *, struct scatterlist *, int, int); -typedef void ia64_mv_dma_unmap_sg (struct device *, struct scatterlist *, int, int); -typedef void ia64_mv_dma_sync_single_for_cpu (struct device *, dma_addr_t, size_t, int); -typedef void ia64_mv_dma_sync_sg_for_cpu (struct device *, struct scatterlist *, int, int); -typedef void ia64_mv_dma_sync_single_for_device (struct device *, dma_addr_t, size_t, int); -typedef void ia64_mv_dma_sync_sg_for_device (struct device *, struct scatterlist *, int, int); -typedef int ia64_mv_dma_mapping_error(struct device *, dma_addr_t dma_addr); -typedef int ia64_mv_dma_supported (struct device *, u64); - -typedef dma_addr_t ia64_mv_dma_map_single_attrs (struct device *, void *, size_t, int, struct dma_attrs *); -typedef void ia64_mv_dma_unmap_single_attrs (struct device *, dma_addr_t, size_t, int, struct dma_attrs *); -typedef int ia64_mv_dma_map_sg_attrs (struct device *, struct scatterlist *, int, int, struct dma_attrs *); -typedef void ia64_mv_dma_unmap_sg_attrs (struct device *, struct scatterlist *, int, int, struct dma_attrs *); typedef u64 ia64_mv_dma_get_required_mask (struct device *); +typedef struct dma_map_ops *ia64_mv_dma_get_ops(struct device *); /* * WARNING: The legacy I/O space is _architected_. Platforms are @@ -114,8 +97,6 @@ machvec_noop_bus (struct pci_bus *bus) extern void machvec_setup (char **); extern void machvec_timer_interrupt (int, void *); -extern void machvec_dma_sync_single (struct device *, dma_addr_t, size_t, int); -extern void machvec_dma_sync_sg (struct device *, struct scatterlist *, int, int); extern void machvec_tlb_migrate_finish (struct mm_struct *); # if defined (CONFIG_IA64_HP_SIM) @@ -148,19 +129,8 @@ extern void machvec_tlb_migrate_finish (struct mm_struct *); # define platform_global_tlb_purge ia64_mv.global_tlb_purge # define platform_tlb_migrate_finish ia64_mv.tlb_migrate_finish # define platform_dma_init ia64_mv.dma_init -# define platform_dma_alloc_coherent ia64_mv.dma_alloc_coherent -# define platform_dma_free_coherent ia64_mv.dma_free_coherent -# define platform_dma_map_single_attrs ia64_mv.dma_map_single_attrs -# define platform_dma_unmap_single_attrs ia64_mv.dma_unmap_single_attrs -# define platform_dma_map_sg_attrs ia64_mv.dma_map_sg_attrs -# define platform_dma_unmap_sg_attrs ia64_mv.dma_unmap_sg_attrs -# define platform_dma_sync_single_for_cpu ia64_mv.dma_sync_single_for_cpu -# define platform_dma_sync_sg_for_cpu ia64_mv.dma_sync_sg_for_cpu -# define platform_dma_sync_single_for_device ia64_mv.dma_sync_single_for_device -# define platform_dma_sync_sg_for_device ia64_mv.dma_sync_sg_for_device -# define platform_dma_mapping_error ia64_mv.dma_mapping_error -# define platform_dma_supported ia64_mv.dma_supported # define platform_dma_get_required_mask ia64_mv.dma_get_required_mask +# define platform_dma_get_ops ia64_mv.dma_get_ops # define platform_irq_to_vector ia64_mv.irq_to_vector # define platform_local_vector_to_irq ia64_mv.local_vector_to_irq # define platform_pci_get_legacy_mem ia64_mv.pci_get_legacy_mem @@ -203,19 +173,8 @@ struct ia64_machine_vector { ia64_mv_global_tlb_purge_t *global_tlb_purge; ia64_mv_tlb_migrate_finish_t *tlb_migrate_finish; ia64_mv_dma_init *dma_init; - ia64_mv_dma_alloc_coherent *dma_alloc_coherent; - ia64_mv_dma_free_coherent *dma_free_coherent; - ia64_mv_dma_map_single_attrs *dma_map_single_attrs; - ia64_mv_dma_unmap_single_attrs *dma_unmap_single_attrs; - ia64_mv_dma_map_sg_attrs *dma_map_sg_attrs; - ia64_mv_dma_unmap_sg_attrs *dma_unmap_sg_attrs; - ia64_mv_dma_sync_single_for_cpu *dma_sync_single_for_cpu; - ia64_mv_dma_sync_sg_for_cpu *dma_sync_sg_for_cpu; - ia64_mv_dma_sync_single_for_device *dma_sync_single_for_device; - ia64_mv_dma_sync_sg_for_device *dma_sync_sg_for_device; - ia64_mv_dma_mapping_error *dma_mapping_error; - ia64_mv_dma_supported *dma_supported; ia64_mv_dma_get_required_mask *dma_get_required_mask; + ia64_mv_dma_get_ops *dma_get_ops; ia64_mv_irq_to_vector *irq_to_vector; ia64_mv_local_vector_to_irq *local_vector_to_irq; ia64_mv_pci_get_legacy_mem_t *pci_get_legacy_mem; @@ -254,19 +213,8 @@ struct ia64_machine_vector { platform_global_tlb_purge, \ platform_tlb_migrate_finish, \ platform_dma_init, \ - platform_dma_alloc_coherent, \ - platform_dma_free_coherent, \ - platform_dma_map_single_attrs, \ - platform_dma_unmap_single_attrs, \ - platform_dma_map_sg_attrs, \ - platform_dma_unmap_sg_attrs, \ - platform_dma_sync_single_for_cpu, \ - platform_dma_sync_sg_for_cpu, \ - platform_dma_sync_single_for_device, \ - platform_dma_sync_sg_for_device, \ - platform_dma_mapping_error, \ - platform_dma_supported, \ platform_dma_get_required_mask, \ + platform_dma_get_ops, \ platform_irq_to_vector, \ platform_local_vector_to_irq, \ platform_pci_get_legacy_mem, \ @@ -302,6 +250,9 @@ extern void machvec_init_from_cmdline(const char *cmdline); # error Unknown configuration. Update arch/ia64/include/asm/machvec.h. # endif /* CONFIG_IA64_GENERIC */ +extern void swiotlb_dma_init(void); +extern struct dma_map_ops *dma_get_ops(struct device *); + /* * Define default versions so we can extend machvec for new platforms without having * to update the machvec files for all existing platforms. @@ -332,43 +283,10 @@ extern void machvec_init_from_cmdline(const char *cmdline); # define platform_kernel_launch_event machvec_noop #endif #ifndef platform_dma_init -# define platform_dma_init swiotlb_init -#endif -#ifndef platform_dma_alloc_coherent -# define platform_dma_alloc_coherent swiotlb_alloc_coherent -#endif -#ifndef platform_dma_free_coherent -# define platform_dma_free_coherent swiotlb_free_coherent -#endif -#ifndef platform_dma_map_single_attrs -# define platform_dma_map_single_attrs swiotlb_map_single_attrs -#endif -#ifndef platform_dma_unmap_single_attrs -# define platform_dma_unmap_single_attrs swiotlb_unmap_single_attrs -#endif -#ifndef platform_dma_map_sg_attrs -# define platform_dma_map_sg_attrs swiotlb_map_sg_attrs -#endif -#ifndef platform_dma_unmap_sg_attrs -# define platform_dma_unmap_sg_attrs swiotlb_unmap_sg_attrs -#endif -#ifndef platform_dma_sync_single_for_cpu -# define platform_dma_sync_single_for_cpu swiotlb_sync_single_for_cpu -#endif -#ifndef platform_dma_sync_sg_for_cpu -# define platform_dma_sync_sg_for_cpu swiotlb_sync_sg_for_cpu -#endif -#ifndef platform_dma_sync_single_for_device -# define platform_dma_sync_single_for_device swiotlb_sync_single_for_device -#endif -#ifndef platform_dma_sync_sg_for_device -# define platform_dma_sync_sg_for_device swiotlb_sync_sg_for_device -#endif -#ifndef platform_dma_mapping_error -# define platform_dma_mapping_error swiotlb_dma_mapping_error +# define platform_dma_init swiotlb_dma_init #endif -#ifndef platform_dma_supported -# define platform_dma_supported swiotlb_dma_supported +#ifndef platform_dma_get_ops +# define platform_dma_get_ops dma_get_ops #endif #ifndef platform_dma_get_required_mask # define platform_dma_get_required_mask ia64_dma_get_required_mask diff --git a/arch/ia64/include/asm/machvec_dig_vtd.h b/arch/ia64/include/asm/machvec_dig_vtd.h index 3400b56..6ab1de5 100644 --- a/arch/ia64/include/asm/machvec_dig_vtd.h +++ b/arch/ia64/include/asm/machvec_dig_vtd.h @@ -2,14 +2,6 @@ #define _ASM_IA64_MACHVEC_DIG_VTD_h extern ia64_mv_setup_t dig_setup; -extern ia64_mv_dma_alloc_coherent vtd_alloc_coherent; -extern ia64_mv_dma_free_coherent vtd_free_coherent; -extern ia64_mv_dma_map_single_attrs vtd_map_single_attrs; -extern ia64_mv_dma_unmap_single_attrs vtd_unmap_single_attrs; -extern ia64_mv_dma_map_sg_attrs vtd_map_sg_attrs; -extern ia64_mv_dma_unmap_sg_attrs vtd_unmap_sg_attrs; -extern ia64_mv_dma_supported iommu_dma_supported; -extern ia64_mv_dma_mapping_error vtd_dma_mapping_error; extern ia64_mv_dma_init pci_iommu_alloc; /* @@ -22,17 +14,5 @@ extern ia64_mv_dma_init pci_iommu_alloc; #define platform_name "dig_vtd" #define platform_setup dig_setup #define platform_dma_init pci_iommu_alloc -#define platform_dma_alloc_coherent vtd_alloc_coherent -#define platform_dma_free_coherent vtd_free_coherent -#define platform_dma_map_single_attrs vtd_map_single_attrs -#define platform_dma_unmap_single_attrs vtd_unmap_single_attrs -#define platform_dma_map_sg_attrs vtd_map_sg_attrs -#define platform_dma_unmap_sg_attrs vtd_unmap_sg_attrs -#define platform_dma_sync_single_for_cpu machvec_dma_sync_single -#define platform_dma_sync_sg_for_cpu machvec_dma_sync_sg -#define platform_dma_sync_single_for_device machvec_dma_sync_single -#define platform_dma_sync_sg_for_device machvec_dma_sync_sg -#define platform_dma_supported iommu_dma_supported -#define platform_dma_mapping_error vtd_dma_mapping_error #endif /* _ASM_IA64_MACHVEC_DIG_VTD_h */ diff --git a/arch/ia64/include/asm/machvec_hpzx1.h b/arch/ia64/include/asm/machvec_hpzx1.h index 2f57f51..3bd83d7 100644 --- a/arch/ia64/include/asm/machvec_hpzx1.h +++ b/arch/ia64/include/asm/machvec_hpzx1.h @@ -2,14 +2,7 @@ #define _ASM_IA64_MACHVEC_HPZX1_h extern ia64_mv_setup_t dig_setup; -extern ia64_mv_dma_alloc_coherent sba_alloc_coherent; -extern ia64_mv_dma_free_coherent sba_free_coherent; -extern ia64_mv_dma_map_single_attrs sba_map_single_attrs; -extern ia64_mv_dma_unmap_single_attrs sba_unmap_single_attrs; -extern ia64_mv_dma_map_sg_attrs sba_map_sg_attrs; -extern ia64_mv_dma_unmap_sg_attrs sba_unmap_sg_attrs; -extern ia64_mv_dma_supported sba_dma_supported; -extern ia64_mv_dma_mapping_error sba_dma_mapping_error; +extern ia64_mv_dma_init sba_dma_init; /* * This stuff has dual use! @@ -20,18 +13,6 @@ extern ia64_mv_dma_mapping_error sba_dma_mapping_error; */ #define platform_name "hpzx1" #define platform_setup dig_setup -#define platform_dma_init machvec_noop -#define platform_dma_alloc_coherent sba_alloc_coherent -#define platform_dma_free_coherent sba_free_coherent -#define platform_dma_map_single_attrs sba_map_single_attrs -#define platform_dma_unmap_single_attrs sba_unmap_single_attrs -#define platform_dma_map_sg_attrs sba_map_sg_attrs -#define platform_dma_unmap_sg_attrs sba_unmap_sg_attrs -#define platform_dma_sync_single_for_cpu machvec_dma_sync_single -#define platform_dma_sync_sg_for_cpu machvec_dma_sync_sg -#define platform_dma_sync_single_for_device machvec_dma_sync_single -#define platform_dma_sync_sg_for_device machvec_dma_sync_sg -#define platform_dma_supported sba_dma_supported -#define platform_dma_mapping_error sba_dma_mapping_error +#define platform_dma_init sba_dma_init #endif /* _ASM_IA64_MACHVEC_HPZX1_h */ diff --git a/arch/ia64/include/asm/machvec_hpzx1_swiotlb.h b/arch/ia64/include/asm/machvec_hpzx1_swiotlb.h index a842cdd..1091ac3 100644 --- a/arch/ia64/include/asm/machvec_hpzx1_swiotlb.h +++ b/arch/ia64/include/asm/machvec_hpzx1_swiotlb.h @@ -2,18 +2,7 @@ #define _ASM_IA64_MACHVEC_HPZX1_SWIOTLB_h extern ia64_mv_setup_t dig_setup; -extern ia64_mv_dma_alloc_coherent hwsw_alloc_coherent; -extern ia64_mv_dma_free_coherent hwsw_free_coherent; -extern ia64_mv_dma_map_single_attrs hwsw_map_single_attrs; -extern ia64_mv_dma_unmap_single_attrs hwsw_unmap_single_attrs; -extern ia64_mv_dma_map_sg_attrs hwsw_map_sg_attrs; -extern ia64_mv_dma_unmap_sg_attrs hwsw_unmap_sg_attrs; -extern ia64_mv_dma_supported hwsw_dma_supported; -extern ia64_mv_dma_mapping_error hwsw_dma_mapping_error; -extern ia64_mv_dma_sync_single_for_cpu hwsw_sync_single_for_cpu; -extern ia64_mv_dma_sync_sg_for_cpu hwsw_sync_sg_for_cpu; -extern ia64_mv_dma_sync_single_for_device hwsw_sync_single_for_device; -extern ia64_mv_dma_sync_sg_for_device hwsw_sync_sg_for_device; +extern ia64_mv_dma_get_ops hwsw_dma_get_ops; /* * This stuff has dual use! @@ -23,20 +12,8 @@ extern ia64_mv_dma_sync_sg_for_device hwsw_sync_sg_for_device; * the macros are used directly. */ #define platform_name "hpzx1_swiotlb" - #define platform_setup dig_setup #define platform_dma_init machvec_noop -#define platform_dma_alloc_coherent hwsw_alloc_coherent -#define platform_dma_free_coherent hwsw_free_coherent -#define platform_dma_map_single_attrs hwsw_map_single_attrs -#define platform_dma_unmap_single_attrs hwsw_unmap_single_attrs -#define platform_dma_map_sg_attrs hwsw_map_sg_attrs -#define platform_dma_unmap_sg_attrs hwsw_unmap_sg_attrs -#define platform_dma_supported hwsw_dma_supported -#define platform_dma_mapping_error hwsw_dma_mapping_error -#define platform_dma_sync_single_for_cpu hwsw_sync_single_for_cpu -#define platform_dma_sync_sg_for_cpu hwsw_sync_sg_for_cpu -#define platform_dma_sync_single_for_device hwsw_sync_single_for_device -#define platform_dma_sync_sg_for_device hwsw_sync_sg_for_device +#define platform_dma_get_ops hwsw_dma_get_ops #endif /* _ASM_IA64_MACHVEC_HPZX1_SWIOTLB_h */ diff --git a/arch/ia64/include/asm/machvec_sn2.h b/arch/ia64/include/asm/machvec_sn2.h index f1a6e0d..f061a30 100644 --- a/arch/ia64/include/asm/machvec_sn2.h +++ b/arch/ia64/include/asm/machvec_sn2.h @@ -55,19 +55,8 @@ extern ia64_mv_readb_t __sn_readb_relaxed; extern ia64_mv_readw_t __sn_readw_relaxed; extern ia64_mv_readl_t __sn_readl_relaxed; extern ia64_mv_readq_t __sn_readq_relaxed; -extern ia64_mv_dma_alloc_coherent sn_dma_alloc_coherent; -extern ia64_mv_dma_free_coherent sn_dma_free_coherent; -extern ia64_mv_dma_map_single_attrs sn_dma_map_single_attrs; -extern ia64_mv_dma_unmap_single_attrs sn_dma_unmap_single_attrs; -extern ia64_mv_dma_map_sg_attrs sn_dma_map_sg_attrs; -extern ia64_mv_dma_unmap_sg_attrs sn_dma_unmap_sg_attrs; -extern ia64_mv_dma_sync_single_for_cpu sn_dma_sync_single_for_cpu; -extern ia64_mv_dma_sync_sg_for_cpu sn_dma_sync_sg_for_cpu; -extern ia64_mv_dma_sync_single_for_device sn_dma_sync_single_for_device; -extern ia64_mv_dma_sync_sg_for_device sn_dma_sync_sg_for_device; -extern ia64_mv_dma_mapping_error sn_dma_mapping_error; -extern ia64_mv_dma_supported sn_dma_supported; extern ia64_mv_dma_get_required_mask sn_dma_get_required_mask; +extern ia64_mv_dma_init sn_dma_init; extern ia64_mv_migrate_t sn_migrate; extern ia64_mv_kernel_launch_event_t sn_kernel_launch_event; extern ia64_mv_setup_msi_irq_t sn_setup_msi_irq; @@ -111,20 +100,8 @@ extern ia64_mv_pci_fixup_bus_t sn_pci_fixup_bus; #define platform_pci_get_legacy_mem sn_pci_get_legacy_mem #define platform_pci_legacy_read sn_pci_legacy_read #define platform_pci_legacy_write sn_pci_legacy_write -#define platform_dma_init machvec_noop -#define platform_dma_alloc_coherent sn_dma_alloc_coherent -#define platform_dma_free_coherent sn_dma_free_coherent -#define platform_dma_map_single_attrs sn_dma_map_single_attrs -#define platform_dma_unmap_single_attrs sn_dma_unmap_single_attrs -#define platform_dma_map_sg_attrs sn_dma_map_sg_attrs -#define platform_dma_unmap_sg_attrs sn_dma_unmap_sg_attrs -#define platform_dma_sync_single_for_cpu sn_dma_sync_single_for_cpu -#define platform_dma_sync_sg_for_cpu sn_dma_sync_sg_for_cpu -#define platform_dma_sync_single_for_device sn_dma_sync_single_for_device -#define platform_dma_sync_sg_for_device sn_dma_sync_sg_for_device -#define platform_dma_mapping_error sn_dma_mapping_error -#define platform_dma_supported sn_dma_supported #define platform_dma_get_required_mask sn_dma_get_required_mask +#define platform_dma_init sn_dma_init #define platform_migrate sn_migrate #define platform_kernel_launch_event sn_kernel_launch_event #ifdef CONFIG_PCI_MSI diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile index c381ea9..f2778f2 100644 --- a/arch/ia64/kernel/Makefile +++ b/arch/ia64/kernel/Makefile @@ -7,7 +7,7 @@ extra-y := head.o init_task.o vmlinux.lds obj-y := acpi.o entry.o efi.o efi_stub.o gate-data.o fsys.o ia64_ksyms.o irq.o irq_ia64.o \ irq_lsapic.o ivt.o machvec.o pal.o patch.o process.o perfmon.o ptrace.o sal.o \ salinfo.o setup.o signal.o sys_ia64.o time.o traps.o unaligned.o \ - unwind.o mca.o mca_asm.o topology.o + unwind.o mca.o mca_asm.o topology.o dma-mapping.o obj-$(CONFIG_IA64_BRL_EMU) += brl_emu.o obj-$(CONFIG_IA64_GENERIC) += acpi-ext.o @@ -43,9 +43,7 @@ ifneq ($(CONFIG_IA64_ESI),) obj-y += esi_stub.o # must be in kernel proper endif obj-$(CONFIG_DMAR) += pci-dma.o -ifeq ($(CONFIG_DMAR), y) obj-$(CONFIG_SWIOTLB) += pci-swiotlb.o -endif # The gate DSO image is built using a special linker script. targets += gate.so gate-syms.o diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c new file mode 100644 index 0000000..7060e13 --- /dev/null +++ b/arch/ia64/kernel/dma-mapping.c @@ -0,0 +1,10 @@ +#include <linux/dma-mapping.h> + +struct dma_map_ops *dma_ops; +EXPORT_SYMBOL(dma_ops); + +struct dma_map_ops *dma_get_ops(struct device *dev) +{ + return dma_ops; +} +EXPORT_SYMBOL(dma_get_ops); diff --git a/arch/ia64/kernel/machvec.c b/arch/ia64/kernel/machvec.c index 7ccb228..d41a40e 100644 --- a/arch/ia64/kernel/machvec.c +++ b/arch/ia64/kernel/machvec.c @@ -1,5 +1,5 @@ #include <linux/module.h> - +#include <linux/dma-mapping.h> #include <asm/machvec.h> #include <asm/system.h> @@ -75,14 +75,16 @@ machvec_timer_interrupt (int irq, void *dev_id) EXPORT_SYMBOL(machvec_timer_interrupt); void -machvec_dma_sync_single (struct device *hwdev, dma_addr_t dma_handle, size_t size, int dir) +machvec_dma_sync_single(struct device *hwdev, dma_addr_t dma_handle, size_t size, + enum dma_data_direction dir) { mb(); } EXPORT_SYMBOL(machvec_dma_sync_single); void -machvec_dma_sync_sg (struct device *hwdev, struct scatterlist *sg, int n, int dir) +machvec_dma_sync_sg(struct device *hwdev, struct scatterlist *sg, int n, + enum dma_data_direction dir) { mb(); } diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c index d0ada06..a647f11 100644 --- a/arch/ia64/kernel/pci-dma.c +++ b/arch/ia64/kernel/pci-dma.c @@ -32,9 +32,6 @@ int force_iommu __read_mostly = 1; int force_iommu __read_mostly; #endif -/* Set this to 1 if there is a HW IOMMU in the system */ -int iommu_detected __read_mostly; - /* Dummy device used for NULL arguments (normally ISA). Better would be probably a smaller DMA mask, but this is bug-to-bug compatible to i386. */ @@ -44,18 +41,7 @@ struct device fallback_dev = { .dma_mask = &fallback_dev.coherent_dma_mask, }; -void __init pci_iommu_alloc(void) -{ - /* - * The order of these functions is important for - * fall-back/fail-over reasons - */ - detect_intel_iommu(); - -#ifdef CONFIG_SWIOTLB - pci_swiotlb_init(); -#endif -} +extern struct dma_map_ops intel_dma_ops; static int __init pci_iommu_init(void) { @@ -79,15 +65,12 @@ iommu_dma_init(void) return; } -struct dma_mapping_ops *dma_ops; -EXPORT_SYMBOL(dma_ops); - int iommu_dma_supported(struct device *dev, u64 mask) { - struct dma_mapping_ops *ops = get_dma_ops(dev); + struct dma_map_ops *ops = platform_dma_get_ops(dev); - if (ops->dma_supported_op) - return ops->dma_supported_op(dev, mask); + if (ops->dma_supported) + return ops->dma_supported(dev, mask); /* Copied from i386. Doesn't make much sense, because it will only work for pci_alloc_coherent. @@ -116,4 +99,31 @@ int iommu_dma_supported(struct device *dev, u64 mask) } EXPORT_SYMBOL(iommu_dma_supported); +static int vtd_dma_mapping_error(struct device *dev, dma_addr_t dma_addr) +{ + return 0; +} + +void __init pci_iommu_alloc(void) +{ + dma_ops = &intel_dma_ops; + + dma_ops->sync_single_for_cpu = machvec_dma_sync_single; + dma_ops->sync_sg_for_cpu = machvec_dma_sync_sg; + dma_ops->sync_single_for_device = machvec_dma_sync_single; + dma_ops->sync_sg_for_device = machvec_dma_sync_sg; + dma_ops->dma_supported = iommu_dma_supported; + dma_ops->mapping_error = vtd_dma_mapping_error; + + /* + * The order of these functions is important for + * fall-back/fail-over reasons + */ + detect_intel_iommu(); + +#ifdef CONFIG_SWIOTLB + pci_swiotlb_init(); +#endif +} + #endif diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c index 16c5051..d21dea4 100644 --- a/arch/ia64/kernel/pci-swiotlb.c +++ b/arch/ia64/kernel/pci-swiotlb.c @@ -13,23 +13,32 @@ int swiotlb __read_mostly; EXPORT_SYMBOL(swiotlb); -struct dma_mapping_ops swiotlb_dma_ops = { - .mapping_error = swiotlb_dma_mapping_error, +/* Set this to 1 if there is a HW IOMMU in the system */ +int iommu_detected __read_mostly; + +struct dma_map_ops swiotlb_dma_ops = { .alloc_coherent = swiotlb_alloc_coherent, .free_coherent = swiotlb_free_coherent, - .map_single = swiotlb_map_single, - .unmap_single = swiotlb_unmap_single, + .map_page = swiotlb_map_page, + .unmap_page = swiotlb_unmap_page, + .map_sg = swiotlb_map_sg_attrs, + .unmap_sg = swiotlb_unmap_sg_attrs, .sync_single_for_cpu = swiotlb_sync_single_for_cpu, .sync_single_for_device = swiotlb_sync_single_for_device, .sync_single_range_for_cpu = swiotlb_sync_single_range_for_cpu, .sync_single_range_for_device = swiotlb_sync_single_range_for_device, .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu, .sync_sg_for_device = swiotlb_sync_sg_for_device, - .map_sg = swiotlb_map_sg, - .unmap_sg = swiotlb_unmap_sg, - .dma_supported_op = swiotlb_dma_supported, + .dma_supported = swiotlb_dma_supported, + .mapping_error = swiotlb_dma_mapping_error, }; +void __init swiotlb_dma_init(void) +{ + dma_ops = &swiotlb_dma_ops; + swiotlb_init(); +} + void __init pci_swiotlb_init(void) { if (!iommu_detected) { diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c index 863f501..8c130e8 100644 --- a/arch/ia64/sn/pci/pci_dma.c +++ b/arch/ia64/sn/pci/pci_dma.c @@ -10,7 +10,7 @@ */ #include <linux/module.h> -#include <linux/dma-attrs.h> +#include <linux/dma-mapping.h> #include <asm/dma.h> #include <asm/sn/intr.h> #include <asm/sn/pcibus_provider_defs.h> @@ -31,7 +31,7 @@ * this function. Of course, SN only supports devices that have 32 or more * address bits when using the PMU. */ -int sn_dma_supported(struct device *dev, u64 mask) +static int sn_dma_supported(struct device *dev, u64 mask) { BUG_ON(dev->bus != &pci_bus_type); @@ -39,7 +39,6 @@ int sn_dma_supported(struct device *dev, u64 mask) return 0; return 1; } -EXPORT_SYMBOL(sn_dma_supported); /** * sn_dma_set_mask - set the DMA mask @@ -75,8 +74,8 @@ EXPORT_SYMBOL(sn_dma_set_mask); * queue for a SCSI controller). See Documentation/DMA-API.txt for * more information. */ -void *sn_dma_alloc_coherent(struct device *dev, size_t size, - dma_addr_t * dma_handle, gfp_t flags) +static void *sn_dma_alloc_coherent(struct device *dev, size_t size, + dma_addr_t * dma_handle, gfp_t flags) { void *cpuaddr; unsigned long phys_addr; @@ -124,7 +123,6 @@ void *sn_dma_alloc_coherent(struct device *dev, size_t size, return cpuaddr; } -EXPORT_SYMBOL(sn_dma_alloc_coherent); /** * sn_pci_free_coherent - free memory associated with coherent DMAable region @@ -136,8 +134,8 @@ EXPORT_SYMBOL(sn_dma_alloc_coherent); * Frees the memory allocated by dma_alloc_coherent(), potentially unmapping * any associated IOMMU mappings. */ -void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, - dma_addr_t dma_handle) +static void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, + dma_addr_t dma_handle) { struct pci_dev *pdev = to_pci_dev(dev); struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev); @@ -147,7 +145,6 @@ void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, provider->dma_unmap(pdev, dma_handle, 0); free_pages((unsigned long)cpu_addr, get_order(size)); } -EXPORT_SYMBOL(sn_dma_free_coherent); /** * sn_dma_map_single_attrs - map a single page for DMA @@ -173,10 +170,12 @@ EXPORT_SYMBOL(sn_dma_free_coherent); * TODO: simplify our interface; * figure out how to save dmamap handle so can use two step. */ -dma_addr_t sn_dma_map_single_attrs(struct device *dev, void *cpu_addr, - size_t size, int direction, - struct dma_attrs *attrs) +static dma_addr_t sn_dma_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction dir, + struct dma_attrs *attrs) { + void *cpu_addr = page_address(page) + offset; dma_addr_t dma_addr; unsigned long phys_addr; struct pci_dev *pdev = to_pci_dev(dev); @@ -201,7 +200,6 @@ dma_addr_t sn_dma_map_single_attrs(struct device *dev, void *cpu_addr, } return dma_addr; } -EXPORT_SYMBOL(sn_dma_map_single_attrs); /** * sn_dma_unmap_single_attrs - unamp a DMA mapped page @@ -215,21 +213,20 @@ EXPORT_SYMBOL(sn_dma_map_single_attrs); * by @dma_handle into the coherence domain. On SN, we're always cache * coherent, so we just need to free any ATEs associated with this mapping. */ -void sn_dma_unmap_single_attrs(struct device *dev, dma_addr_t dma_addr, - size_t size, int direction, - struct dma_attrs *attrs) +static void sn_dma_unmap_page(struct device *dev, dma_addr_t dma_addr, + size_t size, enum dma_data_direction dir, + struct dma_attrs *attrs) { struct pci_dev *pdev = to_pci_dev(dev); struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev); BUG_ON(dev->bus != &pci_bus_type); - provider->dma_unmap(pdev, dma_addr, direction); + provider->dma_unmap(pdev, dma_addr, dir); } -EXPORT_SYMBOL(sn_dma_unmap_single_attrs); /** - * sn_dma_unmap_sg_attrs - unmap a DMA scatterlist + * sn_dma_unmap_sg - unmap a DMA scatterlist * @dev: device to unmap * @sg: scatterlist to unmap * @nhwentries: number of scatterlist entries @@ -238,9 +235,9 @@ EXPORT_SYMBOL(sn_dma_unmap_single_attrs); * * Unmap a set of streaming mode DMA translations. */ -void sn_dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl, - int nhwentries, int direction, - struct dma_attrs *attrs) +static void sn_dma_unmap_sg(struct device *dev, struct scatterlist *sgl, + int nhwentries, enum dma_data_direction dir, + struct dma_attrs *attrs) { int i; struct pci_dev *pdev = to_pci_dev(dev); @@ -250,15 +247,14 @@ void sn_dma_unmap_sg_attrs(struct device *dev, struct scatterlist *sgl, BUG_ON(dev->bus != &pci_bus_type); for_each_sg(sgl, sg, nhwentries, i) { - provider->dma_unmap(pdev, sg->dma_address, direction); + provider->dma_unmap(pdev, sg->dma_address, dir); sg->dma_address = (dma_addr_t) NULL; sg->dma_length = 0; } } -EXPORT_SYMBOL(sn_dma_unmap_sg_attrs); /** - * sn_dma_map_sg_attrs - map a scatterlist for DMA + * sn_dma_map_sg - map a scatterlist for DMA * @dev: device to map for * @sg: scatterlist to map * @nhwentries: number of entries @@ -272,8 +268,9 @@ EXPORT_SYMBOL(sn_dma_unmap_sg_attrs); * * Maps each entry of @sg for DMA. */ -int sn_dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl, - int nhwentries, int direction, struct dma_attrs *attrs) +static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl, + int nhwentries, enum dma_data_direction dir, + struct dma_attrs *attrs) { unsigned long phys_addr; struct scatterlist *saved_sg = sgl, *sg; @@ -310,8 +307,7 @@ int sn_dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl, * Free any successfully allocated entries. */ if (i > 0) - sn_dma_unmap_sg_attrs(dev, saved_sg, i, - direction, attrs); + sn_dma_unmap_sg(dev, saved_sg, i, dir, attrs); return 0; } @@ -320,41 +316,36 @@ int sn_dma_map_sg_attrs(struct device *dev, struct scatterlist *sgl, return nhwentries; } -EXPORT_SYMBOL(sn_dma_map_sg_attrs); -void sn_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, - size_t size, int direction) +static void sn_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, + size_t size, enum dma_data_direction dir) { BUG_ON(dev->bus != &pci_bus_type); } -EXPORT_SYMBOL(sn_dma_sync_single_for_cpu); -void sn_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, - size_t size, int direction) +static void sn_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, + size_t size, + enum dma_data_direction dir) { BUG_ON(dev->bus != &pci_bus_type); } -EXPORT_SYMBOL(sn_dma_sync_single_for_device); -void sn_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, - int nelems, int direction) +static void sn_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, + int nelems, enum dma_data_direction dir) { BUG_ON(dev->bus != &pci_bus_type); } -EXPORT_SYMBOL(sn_dma_sync_sg_for_cpu); -void sn_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, - int nelems, int direction) +static void sn_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, + int nelems, enum dma_data_direction dir) { BUG_ON(dev->bus != &pci_bus_type); } -EXPORT_SYMBOL(sn_dma_sync_sg_for_device); -int sn_dma_mapping_error(struct device *dev, dma_addr_t dma_addr) +static int sn_dma_mapping_error(struct device *dev, dma_addr_t dma_addr) { return 0; } -EXPORT_SYMBOL(sn_dma_mapping_error); u64 sn_dma_get_required_mask(struct device *dev) { @@ -471,3 +462,23 @@ int sn_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size) out: return ret; } + +static struct dma_map_ops sn_dma_ops = { + .alloc_coherent = sn_dma_alloc_coherent, + .free_coherent = sn_dma_free_coherent, + .map_page = sn_dma_map_page, + .unmap_page = sn_dma_unmap_page, + .map_sg = sn_dma_map_sg, + .unmap_sg = sn_dma_unmap_sg, + .sync_single_for_cpu = sn_dma_sync_single_for_cpu, + .sync_sg_for_cpu = sn_dma_sync_sg_for_cpu, + .sync_single_for_device = sn_dma_sync_single_for_device, + .sync_sg_for_device = sn_dma_sync_sg_for_device, + .mapping_error = sn_dma_mapping_error, + .dma_supported = sn_dma_supported, +}; + +void sn_dma_init(void) +{ + dma_ops = &sn_dma_ops; +} diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h index 3c034f4..4994a20 100644 --- a/arch/x86/include/asm/device.h +++ b/arch/x86/include/asm/device.h @@ -6,7 +6,7 @@ struct dev_archdata { void *acpi_handle; #endif #ifdef CONFIG_X86_64 -struct dma_mapping_ops *dma_ops; +struct dma_map_ops *dma_ops; #endif #ifdef CONFIG_DMAR void *iommu; /* hook for IOMMU specific extension */ diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h index 4035357..5a34780 100644 --- a/arch/x86/include/asm/dma-mapping.h +++ b/arch/x86/include/asm/dma-mapping.h @@ -7,6 +7,7 @@ */ #include <linux/scatterlist.h> +#include <linux/dma-attrs.h> #include <asm/io.h> #include <asm/swiotlb.h> #include <asm-generic/dma-coherent.h> @@ -16,47 +17,9 @@ extern int iommu_merge; extern struct device x86_dma_fallback_dev; extern int panic_on_overflow; -struct dma_mapping_ops { - int (*mapping_error)(struct device *dev, - dma_addr_t dma_addr); - 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); - dma_addr_t (*map_single)(struct device *hwdev, phys_addr_t ptr, - size_t size, int direction); - void (*unmap_single)(struct device *dev, dma_addr_t addr, - size_t size, int direction); - void (*sync_single_for_cpu)(struct device *hwdev, - dma_addr_t dma_handle, size_t size, - int direction); - void (*sync_single_for_device)(struct device *hwdev, - dma_addr_t dma_handle, size_t size, - int direction); - void (*sync_single_range_for_cpu)(struct device *hwdev, - dma_addr_t dma_handle, unsigned long offset, - size_t size, int direction); - void (*sync_single_range_for_device)(struct device *hwdev, - dma_addr_t dma_handle, unsigned long offset, - size_t size, int direction); - void (*sync_sg_for_cpu)(struct device *hwdev, - struct scatterlist *sg, int nelems, - int direction); - void (*sync_sg_for_device)(struct device *hwdev, - struct scatterlist *sg, int nelems, - int direction); - int (*map_sg)(struct device *hwdev, struct scatterlist *sg, - int nents, int direction); - void (*unmap_sg)(struct device *hwdev, - struct scatterlist *sg, int nents, - int direction); - int (*dma_supported)(struct device *hwdev, u64 mask); - int is_phys; -}; - -extern struct dma_mapping_ops *dma_ops; - -static inline struct dma_mapping_ops *get_dma_ops(struct device *dev) +extern struct dma_map_ops *dma_ops; + +static inline struct dma_map_ops *get_dma_ops(struct device *dev) { #ifdef CONFIG_X86_32 return dma_ops; @@ -71,7 +34,7 @@ static inline struct dma_mapping_ops *get_dma_ops(struct device *dev) /* Make sure we keep the same behaviour */ static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) { - struct dma_mapping_ops *ops = get_dma_ops(dev); + struct dma_map_ops *ops = get_dma_ops(dev); if (ops->mapping_error) return ops->mapping_error(dev, dma_addr); @@ -90,137 +53,139 @@ extern void *dma_generic_alloc_coherent(struct device *dev, size_t size, static inline dma_addr_t dma_map_single(struct device *hwdev, void *ptr, size_t size, - int direction) + enum dma_data_direction dir) { - struct dma_mapping_ops *ops = get_dma_ops(hwdev); + struct dma_map_ops *ops = get_dma_ops(hwdev); - BUG_ON(!valid_dma_direction(direction)); - return ops->map_single(hwdev, virt_to_phys(ptr), size, direction); + BUG_ON(!valid_dma_direction(dir)); + return ops->map_page(hwdev, virt_to_page(ptr), + (unsigned long)ptr & ~PAGE_MASK, size, + dir, NULL); } static inline void dma_unmap_single(struct device *dev, dma_addr_t addr, size_t size, - int direction) + enum dma_data_direction dir) { - struct dma_mapping_ops *ops = get_dma_ops(dev); + struct dma_map_ops *ops = get_dma_ops(dev); - BUG_ON(!valid_dma_direction(direction)); - if (ops->unmap_single) - ops->unmap_single(dev, addr, size, direction); + BUG_ON(!valid_dma_direction(dir)); + if (ops->unmap_page) + ops->unmap_page(dev, addr, size, dir, NULL); } static inline int dma_map_sg(struct device *hwdev, struct scatterlist *sg, - int nents, int direction) + int nents, enum dma_data_direction dir) { - struct dma_mapping_ops *ops = get_dma_ops(hwdev); + struct dma_map_ops *ops = get_dma_ops(hwdev); - BUG_ON(!valid_dma_direction(direction)); - return ops->map_sg(hwdev, sg, nents, direction); + BUG_ON(!valid_dma_direction(dir)); + return ops->map_sg(hwdev, sg, nents, dir, NULL); } static inline void dma_unmap_sg(struct device *hwdev, struct scatterlist *sg, int nents, - int direction) + enum dma_data_direction dir) { - struct dma_mapping_ops *ops = get_dma_ops(hwdev); + struct dma_map_ops *ops = get_dma_ops(hwdev); - BUG_ON(!valid_dma_direction(direction)); + BUG_ON(!valid_dma_direction(dir)); if (ops->unmap_sg) - ops->unmap_sg(hwdev, sg, nents, direction); + ops->unmap_sg(hwdev, sg, nents, dir, NULL); } static inline void dma_sync_single_for_cpu(struct device *hwdev, dma_addr_t dma_handle, - size_t size, int direction) + size_t size, enum dma_data_direction dir) { - struct dma_mapping_ops *ops = get_dma_ops(hwdev); + struct dma_map_ops *ops = get_dma_ops(hwdev); - BUG_ON(!valid_dma_direction(direction)); + BUG_ON(!valid_dma_direction(dir)); if (ops->sync_single_for_cpu) - ops->sync_single_for_cpu(hwdev, dma_handle, size, direction); + ops->sync_single_for_cpu(hwdev, dma_handle, size, dir); flush_write_buffers(); } static inline void dma_sync_single_for_device(struct device *hwdev, dma_addr_t dma_handle, - size_t size, int direction) + size_t size, enum dma_data_direction dir) { - struct dma_mapping_ops *ops = get_dma_ops(hwdev); + struct dma_map_ops *ops = get_dma_ops(hwdev); - BUG_ON(!valid_dma_direction(direction)); + BUG_ON(!valid_dma_direction(dir)); if (ops->sync_single_for_device) - ops->sync_single_for_device(hwdev, dma_handle, size, direction); + ops->sync_single_for_device(hwdev, dma_handle, size, dir); flush_write_buffers(); } static inline void dma_sync_single_range_for_cpu(struct device *hwdev, dma_addr_t dma_handle, - unsigned long offset, size_t size, int direction) + unsigned long offset, size_t size, + enum dma_data_direction dir) { - struct dma_mapping_ops *ops = get_dma_ops(hwdev); + struct dma_map_ops *ops = get_dma_ops(hwdev); - BUG_ON(!valid_dma_direction(direction)); + BUG_ON(!valid_dma_direction(dir)); if (ops->sync_single_range_for_cpu) ops->sync_single_range_for_cpu(hwdev, dma_handle, offset, - size, direction); + size, dir); flush_write_buffers(); } static inline void dma_sync_single_range_for_device(struct device *hwdev, dma_addr_t dma_handle, unsigned long offset, size_t size, - int direction) + enum dma_data_direction dir) { - struct dma_mapping_ops *ops = get_dma_ops(hwdev); + struct dma_map_ops *ops = get_dma_ops(hwdev); - BUG_ON(!valid_dma_direction(direction)); + BUG_ON(!valid_dma_direction(dir)); if (ops->sync_single_range_for_device) ops->sync_single_range_for_device(hwdev, dma_handle, - offset, size, direction); + offset, size, dir); flush_write_buffers(); } static inline void dma_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg, - int nelems, int direction) + int nelems, enum dma_data_direction dir) { - struct dma_mapping_ops *ops = get_dma_ops(hwdev); + struct dma_map_ops *ops = get_dma_ops(hwdev); - BUG_ON(!valid_dma_direction(direction)); + BUG_ON(!valid_dma_direction(dir)); if (ops->sync_sg_for_cpu) - ops->sync_sg_for_cpu(hwdev, sg, nelems, direction); + ops->sync_sg_for_cpu(hwdev, sg, nelems, dir); flush_write_buffers(); } static inline void dma_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg, - int nelems, int direction) + int nelems, enum dma_data_direction dir) { - struct dma_mapping_ops *ops = get_dma_ops(hwdev); + struct dma_map_ops *ops = get_dma_ops(hwdev); - BUG_ON(!valid_dma_direction(direction)); + BUG_ON(!valid_dma_direction(dir)); if (ops->sync_sg_for_device) - ops->sync_sg_for_device(hwdev, sg, nelems, direction); + ops->sync_sg_for_device(hwdev, sg, nelems, dir); flush_write_buffers(); } static inline dma_addr_t dma_map_page(struct device *dev, struct page *page, size_t offset, size_t size, - int direction) + enum dma_data_direction dir) { - struct dma_mapping_ops *ops = get_dma_ops(dev); + struct dma_map_ops *ops = get_dma_ops(dev); - BUG_ON(!valid_dma_direction(direction)); - return ops->map_single(dev, page_to_phys(page) + offset, - size, direction); + BUG_ON(!valid_dma_direction(dir)); + return ops->map_page(dev, page, offset, size, dir, NULL); } static inline void dma_unmap_page(struct device *dev, dma_addr_t addr, - size_t size, int direction) + size_t size, enum dma_data_direction dir) { - dma_unmap_single(dev, addr, size, direction); + dma_unmap_single(dev, addr, size, dir); } static inline void @@ -266,7 +231,7 @@ static inline void * dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t gfp) { - struct dma_mapping_ops *ops = get_dma_ops(dev); + struct dma_map_ops *ops = get_dma_ops(dev); void *memory; gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32); @@ -292,7 +257,7 @@ dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, static inline void dma_free_coherent(struct device *dev, size_t size, void *vaddr, dma_addr_t bus) { - struct dma_mapping_ops *ops = get_dma_ops(dev); + struct dma_map_ops *ops = get_dma_ops(dev); WARN_ON(irqs_disabled()); /* for portability */ diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h index a6ee9e6..af326a2 100644 --- a/arch/x86/include/asm/iommu.h +++ b/arch/x86/include/asm/iommu.h @@ -3,7 +3,7 @@ extern void pci_iommu_shutdown(void); extern void no_iommu_init(void); -extern struct dma_mapping_ops nommu_dma_ops; +extern struct dma_map_ops nommu_dma_ops; extern int force_iommu, no_iommu; extern int iommu_detected; diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 5113c08..008e522 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -22,6 +22,7 @@ #include <linux/bitops.h> #include <linux/debugfs.h> #include <linux/scatterlist.h> +#include <linux/dma-mapping.h> #include <linux/iommu-helper.h> #ifdef CONFIG_IOMMU_API #include <linux/iommu.h> @@ -1297,8 +1298,10 @@ static void __unmap_single(struct amd_iommu *iommu, /* * The exported map_single function for dma_ops. */ -static dma_addr_t map_single(struct device *dev, phys_addr_t paddr, - size_t size, int dir) +static dma_addr_t map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction dir, + struct dma_attrs *attrs) { unsigned long flags; struct amd_iommu *iommu; @@ -1306,6 +1309,7 @@ static dma_addr_t map_single(struct device *dev, phys_addr_t paddr, u16 devid; dma_addr_t addr; u64 dma_mask; + phys_addr_t paddr = page_to_phys(page) + offset; INC_STATS_COUNTER(cnt_map_single); @@ -1340,8 +1344,8 @@ out: /* * The exported unmap_single function for dma_ops. */ -static void unmap_single(struct device *dev, dma_addr_t dma_addr, - size_t size, int dir) +static void unmap_page(struct device *dev, dma_addr_t dma_addr, size_t size, + enum dma_data_direction dir, struct dma_attrs *attrs) { unsigned long flags; struct amd_iommu *iommu; @@ -1390,7 +1394,8 @@ static int map_sg_no_iommu(struct device *dev, struct scatterlist *sglist, * lists). */ static int map_sg(struct device *dev, struct scatterlist *sglist, - int nelems, int dir) + int nelems, enum dma_data_direction dir, + struct dma_attrs *attrs) { unsigned long flags; struct amd_iommu *iommu; @@ -1457,7 +1462,8 @@ unmap: * lists). */ static void unmap_sg(struct device *dev, struct scatterlist *sglist, - int nelems, int dir) + int nelems, enum dma_data_direction dir, + struct dma_attrs *attrs) { unsigned long flags; struct amd_iommu *iommu; @@ -1644,11 +1650,11 @@ static void prealloc_protection_domains(void) } } -static struct dma_mapping_ops amd_iommu_dma_ops = { +static struct dma_map_ops amd_iommu_dma_ops = { .alloc_coherent = alloc_coherent, .free_coherent = free_coherent, - .map_single = map_single, - .unmap_single = unmap_single, + .map_page = map_page, + .unmap_page = unmap_page, .map_sg = map_sg, .unmap_sg = unmap_sg, .dma_supported = amd_iommu_dma_supported, diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c index d28bbdc..755c21e 100644 --- a/arch/x86/kernel/pci-calgary_64.c +++ b/arch/x86/kernel/pci-calgary_64.c @@ -380,8 +380,9 @@ static inline struct iommu_table *find_iommu_table(struct device *dev) return tbl; } -static void calgary_unmap_sg(struct device *dev, - struct scatterlist *sglist, int nelems, int direction) +static void calgary_unmap_sg(struct device *dev, struct scatterlist *sglist, + int nelems,enum dma_data_direction dir, + struct dma_attrs *attrs) { struct iommu_table *tbl = find_iommu_table(dev); struct scatterlist *s; @@ -404,7 +405,8 @@ static void calgary_unmap_sg(struct device *dev, } static int calgary_map_sg(struct device *dev, struct scatterlist *sg, - int nelems, int direction) + int nelems, enum dma_data_direction dir, + struct dma_attrs *attrs) { struct iommu_table *tbl = find_iommu_table(dev); struct scatterlist *s; @@ -429,15 +431,14 @@ static int calgary_map_sg(struct device *dev, struct scatterlist *sg, s->dma_address = (entry << PAGE_SHIFT) | s->offset; /* insert into HW table */ - tce_build(tbl, entry, npages, vaddr & PAGE_MASK, - direction); + tce_build(tbl, entry, npages, vaddr & PAGE_MASK, dir); s->dma_length = s->length; } return nelems; error: - calgary_unmap_sg(dev, sg, nelems, direction); + calgary_unmap_sg(dev, sg, nelems, dir, NULL); for_each_sg(sg, s, nelems, i) { sg->dma_address = bad_dma_address; sg->dma_length = 0; @@ -445,10 +446,12 @@ error: return 0; } -static dma_addr_t calgary_map_single(struct device *dev, phys_addr_t paddr, - size_t size, int direction) +static dma_addr_t calgary_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction dir, + struct dma_attrs *attrs) { - void *vaddr = phys_to_virt(paddr); + void *vaddr = page_address(page) + offset; unsigned long uaddr; unsigned int npages; struct iommu_table *tbl = find_iommu_table(dev); @@ -456,17 +459,18 @@ static dma_addr_t calgary_map_single(struct device *dev, phys_addr_t paddr, uaddr = (unsigned long)vaddr; npages = iommu_num_pages(uaddr, size, PAGE_SIZE); - return iommu_alloc(dev, tbl, vaddr, npages, direction); + return iommu_alloc(dev, tbl, vaddr, npages, dir); } -static void calgary_unmap_single(struct device *dev, dma_addr_t dma_handle, - size_t size, int direction) +static void calgary_unmap_page(struct device *dev, dma_addr_t dma_addr, + size_t size, enum dma_data_direction dir, + struct dma_attrs *attrs) { struct iommu_table *tbl = find_iommu_table(dev); unsigned int npages; - npages = iommu_num_pages(dma_handle, size, PAGE_SIZE); - iommu_free(tbl, dma_handle, npages); + npages = iommu_num_pages(dma_addr, size, PAGE_SIZE); + iommu_free(tbl, dma_addr, npages); } static void* calgary_alloc_coherent(struct device *dev, size_t size, @@ -515,13 +519,13 @@ static void calgary_free_coherent(struct device *dev, size_t size, free_pages((unsigned long)vaddr, get_order(size)); } -static struct dma_mapping_ops calgary_dma_ops = { +static struct dma_map_ops calgary_dma_ops = { .alloc_coherent = calgary_alloc_coherent, .free_coherent = calgary_free_coherent, - .map_single = calgary_map_single, - .unmap_single = calgary_unmap_single, .map_sg = calgary_map_sg, .unmap_sg = calgary_unmap_sg, + .map_page = calgary_map_page, + .unmap_page = calgary_unmap_page, }; static inline void __iomem * busno_to_bbar(unsigned char num) diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index b254285..f293a8d 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -12,7 +12,7 @@ static int forbid_dac __read_mostly; -struct dma_mapping_ops *dma_ops; +struct dma_map_ops *dma_ops; EXPORT_SYMBOL(dma_ops); static int iommu_sac_force __read_mostly; @@ -224,7 +224,7 @@ early_param("iommu", iommu_setup); int dma_supported(struct device *dev, u64 mask) { - struct dma_mapping_ops *ops = get_dma_ops(dev); + struct dma_map_ops *ops = get_dma_ops(dev); #ifdef CONFIG_PCI if (mask > 0xffffffff && forbid_dac > 0) { diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c index 00c2bcd..8cb3e45 100644 --- a/arch/x86/kernel/pci-gart_64.c +++ b/arch/x86/kernel/pci-gart_64.c @@ -255,10 +255,13 @@ static dma_addr_t dma_map_area(struct device *dev, dma_addr_t phys_mem, } /* Map a single area into the IOMMU */ -static dma_addr_t -gart_map_single(struct device *dev, phys_addr_t paddr, size_t size, int dir) +static dma_addr_t gart_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction dir, + struct dma_attrs *attrs) { unsigned long bus; + phys_addr_t paddr = page_to_phys(page) + offset; if (!dev) dev = &x86_dma_fallback_dev; @@ -275,8 +278,9 @@ gart_map_single(struct device *dev, phys_addr_t paddr, size_t size, int dir) /* * Free a DMA mapping. */ -static void gart_unmap_single(struct device *dev, dma_addr_t dma_addr, - size_t size, int direction) +static void gart_unmap_page(struct device *dev, dma_addr_t dma_addr, + size_t size, enum dma_data_direction dir, + struct dma_attrs *attrs) { unsigned long iommu_page; int npages; @@ -298,8 +302,8 @@ static void gart_unmap_single(struct device *dev, dma_addr_t dma_addr, /* * Wrapper for pci_unmap_single working with scatterlists. */ -static void -gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, int dir) +static void gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, + enum dma_data_direction dir, struct dma_attrs *attrs) { struct scatterlist *s; int i; @@ -307,7 +311,7 @@ gart_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, int dir) for_each_sg(sg, s, nents, i) { if (!s->dma_length || !s->length) break; - gart_unmap_single(dev, s->dma_address, s->dma_length, dir); + gart_unmap_page(dev, s->dma_address, s->dma_length, dir, NULL); } } @@ -329,7 +333,7 @@ static int dma_map_sg_nonforce(struct device *dev, struct scatterlist *sg, addr = dma_map_area(dev, addr, s->length, dir, 0); if (addr == bad_dma_address) { if (i > 0) - gart_unmap_sg(dev, sg, i, dir); + gart_unmap_sg(dev, sg, i, dir, NULL); nents = 0; sg[0].dma_length = 0; break; @@ -400,8 +404,8 @@ dma_map_cont(struct device *dev, struct scatterlist *start, int nelems, * DMA map all entries in a scatterlist. * Merge chunks that have page aligned sizes into a continuous mapping. */ -static int -gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir) +static int gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, + enum dma_data_direction dir, struct dma_attrs *attrs) { struct scatterlist *s, *ps, *start_sg, *sgmap; int need = 0, nextneed, i, out, start; @@ -468,7 +472,7 @@ gart_map_sg(struct device *dev, struct scatterlist *sg, int nents, int dir) error: flush_gart(); - gart_unmap_sg(dev, sg, out, dir); + gart_unmap_sg(dev, sg, out, dir, NULL); /* When it was forced or merged try again in a dumb way */ if (force_iommu || iommu_merge) { @@ -521,7 +525,7 @@ static void gart_free_coherent(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_addr) { - gart_unmap_single(dev, dma_addr, size, DMA_BIDIRECTIONAL); + gart_unmap_page(dev, dma_addr, size, DMA_BIDIRECTIONAL, NULL); free_pages((unsigned long)vaddr, get_order(size)); } @@ -707,11 +711,11 @@ static __init int init_k8_gatt(struct agp_kern_info *info) return -1; } -static struct dma_mapping_ops gart_dma_ops = { - .map_single = gart_map_single, - .unmap_single = gart_unmap_single, +static struct dma_map_ops gart_dma_ops = { .map_sg = gart_map_sg, .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, }; diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c index c70ab5a..fe50214 100644 --- a/arch/x86/kernel/pci-nommu.c +++ b/arch/x86/kernel/pci-nommu.c @@ -25,19 +25,19 @@ check_addr(char *name, struct device *hwdev, dma_addr_t bus, size_t size) return 1; } -static dma_addr_t -nommu_map_single(struct device *hwdev, phys_addr_t paddr, size_t size, - int direction) +static dma_addr_t nommu_map_page(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction dir, + struct dma_attrs *attrs) { - dma_addr_t bus = paddr; + dma_addr_t bus = page_to_phys(page) + offset; WARN_ON(size == 0); - if (!check_addr("map_single", hwdev, bus, size)) - return bad_dma_address; + if (!check_addr("map_single", dev, bus, size)) + return bad_dma_address; flush_write_buffers(); return bus; } - /* Map a set of buffers described by scatterlist in streaming * mode for DMA. This is the scatter-gather version of the * above pci_map_single interface. Here the scatter gather list @@ -54,7 +54,8 @@ nommu_map_single(struct device *hwdev, phys_addr_t paddr, size_t size, * the same here. */ static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg, - int nents, int direction) + int nents, enum dma_data_direction dir, + struct dma_attrs *attrs) { struct scatterlist *s; int i; @@ -78,11 +79,11 @@ static void nommu_free_coherent(struct device *dev, size_t size, void *vaddr, free_pages((unsigned long)vaddr, get_order(size)); } -struct dma_mapping_ops nommu_dma_ops = { +struct dma_map_ops nommu_dma_ops = { .alloc_coherent = dma_generic_alloc_coherent, .free_coherent = nommu_free_coherent, - .map_single = nommu_map_single, .map_sg = nommu_map_sg, + .map_page = nommu_map_page, .is_phys = 1, }; diff --git a/arch/x86/kernel/pci-swiotlb_64.c b/arch/x86/kernel/pci-swiotlb_64.c index d59c917..34f12e9 100644 --- a/arch/x86/kernel/pci-swiotlb_64.c +++ b/arch/x86/kernel/pci-swiotlb_64.c @@ -33,18 +33,11 @@ phys_addr_t swiotlb_bus_to_phys(dma_addr_t baddr) return baddr; } -int __weak swiotlb_arch_range_needs_mapping(void *ptr, size_t size) +int __weak swiotlb_arch_range_needs_mapping(phys_addr_t paddr, size_t size) { return 0; } -static dma_addr_t -swiotlb_map_single_phys(struct device *hwdev, phys_addr_t paddr, size_t size, - int direction) -{ - return swiotlb_map_single(hwdev, phys_to_virt(paddr), size, direction); -} - static void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size, dma_addr_t *dma_handle, gfp_t flags) { @@ -57,20 +50,20 @@ static void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size, return swiotlb_alloc_coherent(hwdev, size, dma_handle, flags); } -struct dma_mapping_ops swiotlb_dma_ops = { +struct dma_map_ops swiotlb_dma_ops = { .mapping_error = swiotlb_dma_mapping_error, .alloc_coherent = x86_swiotlb_alloc_coherent, .free_coherent = swiotlb_free_coherent, - .map_single = swiotlb_map_single_phys, - .unmap_single = swiotlb_unmap_single, .sync_single_for_cpu = swiotlb_sync_single_for_cpu, .sync_single_for_device = swiotlb_sync_single_for_device, .sync_single_range_for_cpu = swiotlb_sync_single_range_for_cpu, .sync_single_range_for_device = swiotlb_sync_single_range_for_device, .sync_sg_for_cpu = swiotlb_sync_sg_for_cpu, .sync_sg_for_device = swiotlb_sync_sg_for_device, - .map_sg = swiotlb_map_sg, - .unmap_sg = swiotlb_unmap_sg, + .map_sg = swiotlb_map_sg_attrs, + .unmap_sg = swiotlb_unmap_sg_attrs, + .map_page = swiotlb_map_page, + .unmap_page = swiotlb_unmap_page, .dma_supported = NULL, }; |
