69 bool dma_coherent_ok(struct device *dev, phys_addr_t phys, size_t size)  in dma_coherent_ok()  argument
75 	return dma_addr + size - 1 <=  in dma_coherent_ok()
79 static int dma_set_decrypted(struct device *dev, void *vaddr, size_t size)  in dma_set_decrypted()  argument
83 	return set_memory_decrypted((unsigned long)vaddr, PFN_UP(size));  in dma_set_decrypted()
86 static int dma_set_encrypted(struct device *dev, void *vaddr, size_t size)  in dma_set_encrypted()  argument
92 	ret = set_memory_encrypted((unsigned long)vaddr, PFN_UP(size));  in dma_set_encrypted()
99 				    size_t size)  in __dma_direct_free_pages()  argument
101 	if (swiotlb_free(dev, page, size))  in __dma_direct_free_pages()
103 	dma_free_contiguous(dev, page, size);  in __dma_direct_free_pages()
106 static struct page *dma_direct_alloc_swiotlb(struct device *dev, size_t size)  in dma_direct_alloc_swiotlb()  argument
108 	struct page *page = swiotlb_alloc(dev, size);  in dma_direct_alloc_swiotlb()
110 	if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) {  in dma_direct_alloc_swiotlb()
111 		swiotlb_free(dev, page, size);  in dma_direct_alloc_swiotlb()
118 static struct page *__dma_direct_alloc_pages(struct device *dev, size_t size,  in __dma_direct_alloc_pages()  argument
125 	WARN_ON_ONCE(!PAGE_ALIGNED(size));  in __dma_direct_alloc_pages()
128 		return dma_direct_alloc_swiotlb(dev, size);  in __dma_direct_alloc_pages()
131 	page = dma_alloc_contiguous(dev, size, gfp);  in __dma_direct_alloc_pages()
133 		if (!dma_coherent_ok(dev, page_to_phys(page), size) ||  in __dma_direct_alloc_pages()
135 			dma_free_contiguous(dev, page, size);  in __dma_direct_alloc_pages()
141 		page = alloc_pages_node(node, gfp, get_order(size));  in __dma_direct_alloc_pages()
142 	if (page && !dma_coherent_ok(dev, page_to_phys(page), size)) {  in __dma_direct_alloc_pages()
143 		dma_free_contiguous(dev, page, size);  in __dma_direct_alloc_pages()
171 static void *dma_direct_alloc_from_pool(struct device *dev, size_t size,  in dma_direct_alloc_from_pool()  argument
182 	page = dma_alloc_from_pool(dev, size, &ret, gfp, dma_coherent_ok);  in dma_direct_alloc_from_pool()
189 static void *dma_direct_alloc_no_mapping(struct device *dev, size_t size,  in dma_direct_alloc_no_mapping()  argument
194 	page = __dma_direct_alloc_pages(dev, size, gfp & ~__GFP_ZERO, true);  in dma_direct_alloc_no_mapping()
200 		arch_dma_prep_coherent(page, size);  in dma_direct_alloc_no_mapping()
207 void *dma_direct_alloc(struct device *dev, size_t size,  in dma_direct_alloc()  argument
214 	size = PAGE_ALIGN(size);  in dma_direct_alloc()
220 		return dma_direct_alloc_no_mapping(dev, size, dma_handle, gfp);  in dma_direct_alloc()
231 			return arch_dma_alloc(dev, size, dma_handle, gfp,  in dma_direct_alloc()
239 			return dma_alloc_from_global_coherent(dev, size,  in dma_direct_alloc()
250 				return dma_direct_alloc_from_pool(dev, size,  in dma_direct_alloc()
264 		return dma_direct_alloc_from_pool(dev, size, dma_handle, gfp);  in dma_direct_alloc()
267 	page = __dma_direct_alloc_pages(dev, size, gfp & ~__GFP_ZERO, true);  in dma_direct_alloc()
288 		arch_dma_prep_coherent(page, size);  in dma_direct_alloc()
291 		ret = dma_common_contiguous_remap(page, size, prot,  in dma_direct_alloc()
297 		if (dma_set_decrypted(dev, ret, size))  in dma_direct_alloc()
301 	memset(ret, 0, size);  in dma_direct_alloc()
304 		arch_dma_prep_coherent(page, size);  in dma_direct_alloc()
305 		ret = arch_dma_set_uncached(ret, size);  in dma_direct_alloc()
314 	if (dma_set_encrypted(dev, page_address(page), size))  in dma_direct_alloc()
317 	__dma_direct_free_pages(dev, page, size);  in dma_direct_alloc()
323 void dma_direct_free(struct device *dev, size_t size,  in dma_direct_free()  argument
326 	unsigned int page_order = get_order(size);  in dma_direct_free()
331 		dma_free_contiguous(dev, cpu_addr, size);  in dma_direct_free()
340 		arch_dma_free(dev, size, cpu_addr, dma_addr, attrs);  in dma_direct_free()
353 	    dma_free_from_pool(dev, cpu_addr, PAGE_ALIGN(size)))  in dma_direct_free()
360 			arch_dma_clear_uncached(cpu_addr, size);  in dma_direct_free()
361 		if (dma_set_encrypted(dev, cpu_addr, size))  in dma_direct_free()
365 	__dma_direct_free_pages(dev, dma_direct_to_page(dev, dma_addr), size);  in dma_direct_free()
368 struct page *dma_direct_alloc_pages(struct device *dev, size_t size,  in dma_direct_alloc_pages()  argument
375 		return dma_direct_alloc_from_pool(dev, size, dma_handle, gfp);  in dma_direct_alloc_pages()
377 	page = __dma_direct_alloc_pages(dev, size, gfp, false);  in dma_direct_alloc_pages()
382 	if (dma_set_decrypted(dev, ret, size))  in dma_direct_alloc_pages()
384 	memset(ret, 0, size);  in dma_direct_alloc_pages()
391 void dma_direct_free_pages(struct device *dev, size_t size,  in dma_direct_free_pages()  argument
399 	    dma_free_from_pool(dev, vaddr, size))  in dma_direct_free_pages()
402 	if (dma_set_encrypted(dev, vaddr, size))  in dma_direct_free_pages()
404 	__dma_direct_free_pages(dev, page, size);  in dma_direct_free_pages()
521 		size_t size, enum dma_data_direction dir, unsigned long attrs)  in dma_direct_map_resource()  argument
525 	if (unlikely(!dma_capable(dev, dma_addr, size, false))) {  in dma_direct_map_resource()
528 			     &dma_addr, size, *dev->dma_mask, dev->bus_dma_limit);  in dma_direct_map_resource()
537 		void *cpu_addr, dma_addr_t dma_addr, size_t size,  in dma_direct_get_sgtable()  argument
545 		sg_set_page(sgt->sgl, page, PAGE_ALIGN(size), 0);  in dma_direct_get_sgtable()
556 		void *cpu_addr, dma_addr_t dma_addr, size_t size,  in dma_direct_mmap()  argument
560 	unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;  in dma_direct_mmap()
568 	if (dma_mmap_from_dev_coherent(dev, vma, cpu_addr, size, &ret))  in dma_direct_mmap()
570 	if (dma_mmap_from_global_coherent(vma, cpu_addr, size, &ret))  in dma_direct_mmap()
634 			 dma_addr_t dma_start, u64 size)  in dma_direct_set_offset()  argument
653 	map[0].size = size;  in dma_direct_set_offset()