diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-10-20 00:10:27 -0300 |
---|---|---|
committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2016-10-20 00:10:27 -0300 |
commit | d0b2f91bede3bd5e3d24dd6803e56eee959c1797 (patch) | |
tree | 7fee4ab0509879c373c4f2cbd5b8a5be5b4041ee /arch/arm/mm/dma-mapping.c | |
parent | e914f8eb445e8f74b00303c19c2ffceaedd16a05 (diff) |
Linux-libre 4.8.2-gnupck-4.8.2-gnu
Diffstat (limited to 'arch/arm/mm/dma-mapping.c')
-rw-r--r-- | arch/arm/mm/dma-mapping.c | 199 |
1 files changed, 120 insertions, 79 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index d2485c749..c6834c0cf 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -128,16 +128,16 @@ static void __dma_page_dev_to_cpu(struct page *, unsigned long, */ static dma_addr_t arm_dma_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 attrs) { - if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs)) + if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0) __dma_page_cpu_to_dev(page, offset, size, dir); return pfn_to_dma(dev, page_to_pfn(page)) + offset; } static dma_addr_t arm_coherent_dma_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 attrs) { return pfn_to_dma(dev, page_to_pfn(page)) + offset; } @@ -157,10 +157,9 @@ static dma_addr_t arm_coherent_dma_map_page(struct device *dev, struct page *pag * whatever the device wrote there. */ static void arm_dma_unmap_page(struct device *dev, dma_addr_t handle, - size_t size, enum dma_data_direction dir, - struct dma_attrs *attrs) + size_t size, enum dma_data_direction dir, unsigned long attrs) { - if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs)) + if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0) __dma_page_dev_to_cpu(pfn_to_page(dma_to_pfn(dev, handle)), handle & ~PAGE_MASK, size, dir); } @@ -198,12 +197,12 @@ struct dma_map_ops arm_dma_ops = { EXPORT_SYMBOL(arm_dma_ops); static void *arm_coherent_dma_alloc(struct device *dev, size_t size, - dma_addr_t *handle, gfp_t gfp, struct dma_attrs *attrs); + dma_addr_t *handle, gfp_t gfp, unsigned long attrs); static void arm_coherent_dma_free(struct device *dev, size_t size, void *cpu_addr, - dma_addr_t handle, struct dma_attrs *attrs); + dma_addr_t handle, unsigned long attrs); static int arm_coherent_dma_mmap(struct device *dev, struct vm_area_struct *vma, void *cpu_addr, dma_addr_t dma_addr, size_t size, - struct dma_attrs *attrs); + unsigned long attrs); struct dma_map_ops arm_coherent_dma_ops = { .alloc = arm_coherent_dma_alloc, @@ -639,11 +638,11 @@ static void __free_from_contiguous(struct device *dev, struct page *page, dma_release_from_contiguous(dev, page, size >> PAGE_SHIFT); } -static inline pgprot_t __get_dma_pgprot(struct dma_attrs *attrs, pgprot_t prot) +static inline pgprot_t __get_dma_pgprot(unsigned long attrs, pgprot_t prot) { - prot = dma_get_attr(DMA_ATTR_WRITE_COMBINE, attrs) ? - pgprot_writecombine(prot) : - pgprot_dmacoherent(prot); + prot = (attrs & DMA_ATTR_WRITE_COMBINE) ? + pgprot_writecombine(prot) : + pgprot_dmacoherent(prot); return prot; } @@ -751,7 +750,7 @@ static struct arm_dma_allocator remap_allocator = { static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp, pgprot_t prot, bool is_coherent, - struct dma_attrs *attrs, const void *caller) + unsigned long attrs, const void *caller) { u64 mask = get_coherent_dma_mask(dev); struct page *page = NULL; @@ -764,7 +763,7 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, .gfp = gfp, .prot = prot, .caller = caller, - .want_vaddr = !dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs), + .want_vaddr = ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0), .coherent_flag = is_coherent ? COHERENT : NORMAL, }; @@ -834,7 +833,7 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, * virtual and bus address for that space. */ void *arm_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, - gfp_t gfp, struct dma_attrs *attrs) + gfp_t gfp, unsigned long attrs) { pgprot_t prot = __get_dma_pgprot(attrs, PAGE_KERNEL); @@ -843,7 +842,7 @@ void *arm_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, } static void *arm_coherent_dma_alloc(struct device *dev, size_t size, - dma_addr_t *handle, gfp_t gfp, struct dma_attrs *attrs) + dma_addr_t *handle, gfp_t gfp, unsigned long attrs) { return __dma_alloc(dev, size, handle, gfp, PAGE_KERNEL, true, attrs, __builtin_return_address(0)); @@ -851,7 +850,7 @@ static void *arm_coherent_dma_alloc(struct device *dev, size_t size, static int __arm_dma_mmap(struct device *dev, struct vm_area_struct *vma, void *cpu_addr, dma_addr_t dma_addr, size_t size, - struct dma_attrs *attrs) + unsigned long attrs) { int ret = -ENXIO; #ifdef CONFIG_MMU @@ -879,14 +878,14 @@ static int __arm_dma_mmap(struct device *dev, struct vm_area_struct *vma, */ static int arm_coherent_dma_mmap(struct device *dev, struct vm_area_struct *vma, void *cpu_addr, dma_addr_t dma_addr, size_t size, - struct dma_attrs *attrs) + unsigned long attrs) { return __arm_dma_mmap(dev, vma, cpu_addr, dma_addr, size, attrs); } int arm_dma_mmap(struct device *dev, struct vm_area_struct *vma, void *cpu_addr, dma_addr_t dma_addr, size_t size, - struct dma_attrs *attrs) + unsigned long attrs) { #ifdef CONFIG_MMU vma->vm_page_prot = __get_dma_pgprot(attrs, vma->vm_page_prot); @@ -898,7 +897,7 @@ int arm_dma_mmap(struct device *dev, struct vm_area_struct *vma, * Free a buffer as defined by the above mapping. */ static void __arm_dma_free(struct device *dev, size_t size, void *cpu_addr, - dma_addr_t handle, struct dma_attrs *attrs, + dma_addr_t handle, unsigned long attrs, bool is_coherent) { struct page *page = pfn_to_page(dma_to_pfn(dev, handle)); @@ -908,7 +907,7 @@ static void __arm_dma_free(struct device *dev, size_t size, void *cpu_addr, .size = PAGE_ALIGN(size), .cpu_addr = cpu_addr, .page = page, - .want_vaddr = !dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs), + .want_vaddr = ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0), }; buf = arm_dma_buffer_find(cpu_addr); @@ -920,20 +919,20 @@ static void __arm_dma_free(struct device *dev, size_t size, void *cpu_addr, } void arm_dma_free(struct device *dev, size_t size, void *cpu_addr, - dma_addr_t handle, struct dma_attrs *attrs) + dma_addr_t handle, unsigned long attrs) { __arm_dma_free(dev, size, cpu_addr, handle, attrs, false); } static void arm_coherent_dma_free(struct device *dev, size_t size, void *cpu_addr, - dma_addr_t handle, struct dma_attrs *attrs) + dma_addr_t handle, unsigned long attrs) { __arm_dma_free(dev, size, cpu_addr, handle, attrs, true); } int arm_dma_get_sgtable(struct device *dev, struct sg_table *sgt, void *cpu_addr, dma_addr_t handle, size_t size, - struct dma_attrs *attrs) + unsigned long attrs) { struct page *page = pfn_to_page(dma_to_pfn(dev, handle)); int ret; @@ -1066,7 +1065,7 @@ static void __dma_page_dev_to_cpu(struct page *page, unsigned long off, * here. */ int arm_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction dir, struct dma_attrs *attrs) + enum dma_data_direction dir, unsigned long attrs) { struct dma_map_ops *ops = get_dma_ops(dev); struct scatterlist *s; @@ -1100,7 +1099,7 @@ int arm_dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, * rules concerning calls here are the same as for dma_unmap_single(). */ void arm_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction dir, struct dma_attrs *attrs) + enum dma_data_direction dir, unsigned long attrs) { struct dma_map_ops *ops = get_dma_ops(dev); struct scatterlist *s; @@ -1273,7 +1272,7 @@ static inline void __free_iova(struct dma_iommu_mapping *mapping, static const int iommu_order_array[] = { 9, 8, 4, 0 }; static struct page **__iommu_alloc_buffer(struct device *dev, size_t size, - gfp_t gfp, struct dma_attrs *attrs, + gfp_t gfp, unsigned long attrs, int coherent_flag) { struct page **pages; @@ -1289,7 +1288,7 @@ static struct page **__iommu_alloc_buffer(struct device *dev, size_t size, if (!pages) return NULL; - if (dma_get_attr(DMA_ATTR_FORCE_CONTIGUOUS, attrs)) + if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) { unsigned long order = get_order(size); struct page *page; @@ -1307,7 +1306,7 @@ static struct page **__iommu_alloc_buffer(struct device *dev, size_t size, } /* Go straight to 4K chunks if caller says it's OK. */ - if (dma_get_attr(DMA_ATTR_ALLOC_SINGLE_PAGES, attrs)) + if (attrs & DMA_ATTR_ALLOC_SINGLE_PAGES) order_idx = ARRAY_SIZE(iommu_order_array) - 1; /* @@ -1363,12 +1362,12 @@ error: } static int __iommu_free_buffer(struct device *dev, struct page **pages, - size_t size, struct dma_attrs *attrs) + size_t size, unsigned long attrs) { int count = size >> PAGE_SHIFT; int i; - if (dma_get_attr(DMA_ATTR_FORCE_CONTIGUOUS, attrs)) { + if (attrs & DMA_ATTR_FORCE_CONTIGUOUS) { dma_release_from_contiguous(dev, pages[0], count); } else { for (i = 0; i < count; i++) @@ -1460,14 +1459,14 @@ static struct page **__atomic_get_pages(void *addr) return (struct page **)page; } -static struct page **__iommu_get_pages(void *cpu_addr, struct dma_attrs *attrs) +static struct page **__iommu_get_pages(void *cpu_addr, unsigned long attrs) { struct vm_struct *area; if (__in_atomic_pool(cpu_addr, PAGE_SIZE)) return __atomic_get_pages(cpu_addr); - if (dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs)) + if (attrs & DMA_ATTR_NO_KERNEL_MAPPING) return cpu_addr; area = find_vm_area(cpu_addr); @@ -1476,13 +1475,16 @@ static struct page **__iommu_get_pages(void *cpu_addr, struct dma_attrs *attrs) return NULL; } -static void *__iommu_alloc_atomic(struct device *dev, size_t size, - dma_addr_t *handle) +static void *__iommu_alloc_simple(struct device *dev, size_t size, gfp_t gfp, + dma_addr_t *handle, int coherent_flag) { struct page *page; void *addr; - addr = __alloc_from_pool(size, &page); + if (coherent_flag == COHERENT) + addr = __alloc_simple_buffer(dev, size, gfp, &page); + else + addr = __alloc_from_pool(size, &page); if (!addr) return NULL; @@ -1498,14 +1500,18 @@ err_mapping: } static void __iommu_free_atomic(struct device *dev, void *cpu_addr, - dma_addr_t handle, size_t size) + dma_addr_t handle, size_t size, int coherent_flag) { __iommu_remove_mapping(dev, handle, size); - __free_from_pool(cpu_addr, size); + if (coherent_flag == COHERENT) + __dma_free_buffer(virt_to_page(cpu_addr), size); + else + __free_from_pool(cpu_addr, size); } -static void *arm_iommu_alloc_attrs(struct device *dev, size_t size, - dma_addr_t *handle, gfp_t gfp, struct dma_attrs *attrs) +static void *__arm_iommu_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *handle, gfp_t gfp, unsigned long attrs, + int coherent_flag) { pgprot_t prot = __get_dma_pgprot(attrs, PAGE_KERNEL); struct page **pages; @@ -1514,8 +1520,9 @@ static void *arm_iommu_alloc_attrs(struct device *dev, size_t size, *handle = DMA_ERROR_CODE; size = PAGE_ALIGN(size); - if (!gfpflags_allow_blocking(gfp)) - return __iommu_alloc_atomic(dev, size, handle); + if (coherent_flag == COHERENT || !gfpflags_allow_blocking(gfp)) + return __iommu_alloc_simple(dev, size, gfp, handle, + coherent_flag); /* * Following is a work-around (a.k.a. hack) to prevent pages @@ -1526,8 +1533,7 @@ static void *arm_iommu_alloc_attrs(struct device *dev, size_t size, */ gfp &= ~(__GFP_COMP); - /* For now always consider we are in a non-coherent case */ - pages = __iommu_alloc_buffer(dev, size, gfp, attrs, NORMAL); + pages = __iommu_alloc_buffer(dev, size, gfp, attrs, coherent_flag); if (!pages) return NULL; @@ -1535,7 +1541,7 @@ static void *arm_iommu_alloc_attrs(struct device *dev, size_t size, if (*handle == DMA_ERROR_CODE) goto err_buffer; - if (dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs)) + if (attrs & DMA_ATTR_NO_KERNEL_MAPPING) return pages; addr = __iommu_alloc_remap(pages, size, gfp, prot, @@ -1552,9 +1558,21 @@ err_buffer: return NULL; } -static int arm_iommu_mmap_attrs(struct device *dev, struct vm_area_struct *vma, +static void *arm_iommu_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *handle, gfp_t gfp, unsigned long attrs) +{ + return __arm_iommu_alloc_attrs(dev, size, handle, gfp, attrs, NORMAL); +} + +static void *arm_coherent_iommu_alloc_attrs(struct device *dev, size_t size, + dma_addr_t *handle, gfp_t gfp, unsigned long attrs) +{ + return __arm_iommu_alloc_attrs(dev, size, handle, gfp, attrs, COHERENT); +} + +static int __arm_iommu_mmap_attrs(struct device *dev, struct vm_area_struct *vma, void *cpu_addr, dma_addr_t dma_addr, size_t size, - struct dma_attrs *attrs) + unsigned long attrs) { unsigned long uaddr = vma->vm_start; unsigned long usize = vma->vm_end - vma->vm_start; @@ -1562,8 +1580,6 @@ static int arm_iommu_mmap_attrs(struct device *dev, struct vm_area_struct *vma, unsigned long nr_pages = PAGE_ALIGN(size) >> PAGE_SHIFT; unsigned long off = vma->vm_pgoff; - vma->vm_page_prot = __get_dma_pgprot(attrs, vma->vm_page_prot); - if (!pages) return -ENXIO; @@ -1584,19 +1600,34 @@ static int arm_iommu_mmap_attrs(struct device *dev, struct vm_area_struct *vma, return 0; } +static int arm_iommu_mmap_attrs(struct device *dev, + struct vm_area_struct *vma, void *cpu_addr, + dma_addr_t dma_addr, size_t size, unsigned long attrs) +{ + vma->vm_page_prot = __get_dma_pgprot(attrs, vma->vm_page_prot); + + return __arm_iommu_mmap_attrs(dev, vma, cpu_addr, dma_addr, size, attrs); +} + +static int arm_coherent_iommu_mmap_attrs(struct device *dev, + struct vm_area_struct *vma, void *cpu_addr, + dma_addr_t dma_addr, size_t size, unsigned long attrs) +{ + return __arm_iommu_mmap_attrs(dev, vma, cpu_addr, dma_addr, size, attrs); +} /* * free a page as defined by the above mapping. * Must not be called with IRQs disabled. */ -void arm_iommu_free_attrs(struct device *dev, size_t size, void *cpu_addr, - dma_addr_t handle, struct dma_attrs *attrs) +void __arm_iommu_free_attrs(struct device *dev, size_t size, void *cpu_addr, + dma_addr_t handle, unsigned long attrs, int coherent_flag) { struct page **pages; size = PAGE_ALIGN(size); - if (__in_atomic_pool(cpu_addr, size)) { - __iommu_free_atomic(dev, cpu_addr, handle, size); + if (coherent_flag == COHERENT || __in_atomic_pool(cpu_addr, size)) { + __iommu_free_atomic(dev, cpu_addr, handle, size, coherent_flag); return; } @@ -1606,7 +1637,7 @@ void arm_iommu_free_attrs(struct device *dev, size_t size, void *cpu_addr, return; } - if (!dma_get_attr(DMA_ATTR_NO_KERNEL_MAPPING, attrs)) { + if ((attrs & DMA_ATTR_NO_KERNEL_MAPPING) == 0) { dma_common_free_remap(cpu_addr, size, VM_ARM_DMA_CONSISTENT | VM_USERMAP); } @@ -1615,9 +1646,21 @@ void arm_iommu_free_attrs(struct device *dev, size_t size, void *cpu_addr, __iommu_free_buffer(dev, pages, size, attrs); } +void arm_iommu_free_attrs(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t handle, unsigned long attrs) +{ + __arm_iommu_free_attrs(dev, size, cpu_addr, handle, attrs, NORMAL); +} + +void arm_coherent_iommu_free_attrs(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t handle, unsigned long attrs) +{ + __arm_iommu_free_attrs(dev, size, cpu_addr, handle, attrs, COHERENT); +} + static int arm_iommu_get_sgtable(struct device *dev, struct sg_table *sgt, void *cpu_addr, dma_addr_t dma_addr, - size_t size, struct dma_attrs *attrs) + size_t size, unsigned long attrs) { unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT; struct page **pages = __iommu_get_pages(cpu_addr, attrs); @@ -1655,7 +1698,7 @@ static int __dma_direction_to_prot(enum dma_data_direction dir) */ static int __map_sg_chunk(struct device *dev, struct scatterlist *sg, size_t size, dma_addr_t *handle, - enum dma_data_direction dir, struct dma_attrs *attrs, + enum dma_data_direction dir, unsigned long attrs, bool is_coherent) { struct dma_iommu_mapping *mapping = to_dma_iommu_mapping(dev); @@ -1676,8 +1719,7 @@ static int __map_sg_chunk(struct device *dev, struct scatterlist *sg, phys_addr_t phys = page_to_phys(sg_page(s)); unsigned int len = PAGE_ALIGN(s->offset + s->length); - if (!is_coherent && - !dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs)) + if (!is_coherent && (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0) __dma_page_cpu_to_dev(sg_page(s), s->offset, s->length, dir); prot = __dma_direction_to_prot(dir); @@ -1698,7 +1740,7 @@ fail: } static int __iommu_map_sg(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction dir, struct dma_attrs *attrs, + enum dma_data_direction dir, unsigned long attrs, bool is_coherent) { struct scatterlist *s = sg, *dma = sg, *start = sg; @@ -1756,7 +1798,7 @@ bad_mapping: * obtained via sg_dma_{address,length}. */ int arm_coherent_iommu_map_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction dir, struct dma_attrs *attrs) + int nents, enum dma_data_direction dir, unsigned long attrs) { return __iommu_map_sg(dev, sg, nents, dir, attrs, true); } @@ -1774,14 +1816,14 @@ int arm_coherent_iommu_map_sg(struct device *dev, struct scatterlist *sg, * sg_dma_{address,length}. */ int arm_iommu_map_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction dir, struct dma_attrs *attrs) + int nents, enum dma_data_direction dir, unsigned long attrs) { return __iommu_map_sg(dev, sg, nents, dir, attrs, false); } static void __iommu_unmap_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction dir, struct dma_attrs *attrs, - bool is_coherent) + int nents, enum dma_data_direction dir, + unsigned long attrs, bool is_coherent) { struct scatterlist *s; int i; @@ -1790,8 +1832,7 @@ static void __iommu_unmap_sg(struct device *dev, struct scatterlist *sg, if (sg_dma_len(s)) __iommu_remove_mapping(dev, sg_dma_address(s), sg_dma_len(s)); - if (!is_coherent && - !dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs)) + if (!is_coherent && (attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0) __dma_page_dev_to_cpu(sg_page(s), s->offset, s->length, dir); } @@ -1808,7 +1849,8 @@ static void __iommu_unmap_sg(struct device *dev, struct scatterlist *sg, * rules concerning calls here are the same as for dma_unmap_single(). */ void arm_coherent_iommu_unmap_sg(struct device *dev, struct scatterlist *sg, - int nents, enum dma_data_direction dir, struct dma_attrs *attrs) + int nents, enum dma_data_direction dir, + unsigned long attrs) { __iommu_unmap_sg(dev, sg, nents, dir, attrs, true); } @@ -1824,7 +1866,8 @@ void arm_coherent_iommu_unmap_sg(struct device *dev, struct scatterlist *sg, * rules concerning calls here are the same as for dma_unmap_single(). */ void arm_iommu_unmap_sg(struct device *dev, struct scatterlist *sg, int nents, - enum dma_data_direction dir, struct dma_attrs *attrs) + enum dma_data_direction dir, + unsigned long attrs) { __iommu_unmap_sg(dev, sg, nents, dir, attrs, false); } @@ -1877,7 +1920,7 @@ void arm_iommu_sync_sg_for_device(struct device *dev, struct scatterlist *sg, */ static dma_addr_t arm_coherent_iommu_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 attrs) { struct dma_iommu_mapping *mapping = to_dma_iommu_mapping(dev); dma_addr_t dma_addr; @@ -1911,9 +1954,9 @@ fail: */ static dma_addr_t arm_iommu_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 attrs) { - if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs)) + if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0) __dma_page_cpu_to_dev(page, offset, size, dir); return arm_coherent_iommu_map_page(dev, page, offset, size, dir, attrs); @@ -1929,8 +1972,7 @@ static dma_addr_t arm_iommu_map_page(struct device *dev, struct page *page, * Coherent IOMMU aware version of arm_dma_unmap_page() */ static void arm_coherent_iommu_unmap_page(struct device *dev, dma_addr_t handle, - size_t size, enum dma_data_direction dir, - struct dma_attrs *attrs) + size_t size, enum dma_data_direction dir, unsigned long attrs) { struct dma_iommu_mapping *mapping = to_dma_iommu_mapping(dev); dma_addr_t iova = handle & PAGE_MASK; @@ -1954,8 +1996,7 @@ static void arm_coherent_iommu_unmap_page(struct device *dev, dma_addr_t handle, * IOMMU aware version of arm_dma_unmap_page() */ static void arm_iommu_unmap_page(struct device *dev, dma_addr_t handle, - size_t size, enum dma_data_direction dir, - struct dma_attrs *attrs) + size_t size, enum dma_data_direction dir, unsigned long attrs) { struct dma_iommu_mapping *mapping = to_dma_iommu_mapping(dev); dma_addr_t iova = handle & PAGE_MASK; @@ -1966,7 +2007,7 @@ static void arm_iommu_unmap_page(struct device *dev, dma_addr_t handle, if (!iova) return; - if (!dma_get_attr(DMA_ATTR_SKIP_CPU_SYNC, attrs)) + if ((attrs & DMA_ATTR_SKIP_CPU_SYNC) == 0) __dma_page_dev_to_cpu(page, offset, size, dir); iommu_unmap(mapping->domain, iova, len); @@ -2019,9 +2060,9 @@ struct dma_map_ops iommu_ops = { }; struct dma_map_ops iommu_coherent_ops = { - .alloc = arm_iommu_alloc_attrs, - .free = arm_iommu_free_attrs, - .mmap = arm_iommu_mmap_attrs, + .alloc = arm_coherent_iommu_alloc_attrs, + .free = arm_coherent_iommu_free_attrs, + .mmap = arm_coherent_iommu_mmap_attrs, .get_sgtable = arm_iommu_get_sgtable, .map_page = arm_coherent_iommu_map_page, |