23 	struct page **pages;  member
50 	 * Ensure that the allocated pages are zeroed, and that any data  in __dma_clear_buffer()
64 	struct page **pages;  in __dma_alloc_buffer()  local
67 	pages = kvzalloc(array_size, GFP_KERNEL);  in __dma_alloc_buffer()
68 	if (!pages)  in __dma_alloc_buffer()
76 		pages[i] = alloc_pages(gfp, order);  in __dma_alloc_buffer()
77 		while (!pages[i] && order)  in __dma_alloc_buffer()
78 			pages[i] = alloc_pages(gfp, --order);  in __dma_alloc_buffer()
79 		if (!pages[i])  in __dma_alloc_buffer()
83 			split_page(pages[i], order);  in __dma_alloc_buffer()
86 				pages[i + j] = pages[i] + j;  in __dma_alloc_buffer()
89 		__dma_clear_buffer(pages[i], PAGE_SIZE << order, attrs);  in __dma_alloc_buffer()
94 	return pages;  in __dma_alloc_buffer()
97 		if (pages[i])  in __dma_alloc_buffer()
98 			__free_pages(pages[i], 0);  in __dma_alloc_buffer()
99 	kvfree(pages);  in __dma_alloc_buffer()
103 static void __dma_free_buffer(struct device *dev, struct page **pages,  in __dma_free_buffer()  argument
109 	for (i = 0; i < count && pages[i]; i++) {  in __dma_free_buffer()
110 		__dma_clear_buffer(pages[i], PAGE_SIZE, attrs);  in __dma_free_buffer()
111 		__free_pages(pages[i], 0);  in __dma_free_buffer()
114 	kvfree(pages);  in __dma_free_buffer()
159 	struct page **pages;  in ipu6_dma_alloc()  local
176 	pages = __dma_alloc_buffer(dev, size, gfp, attrs);  in ipu6_dma_alloc()
177 	if (!pages)  in ipu6_dma_alloc()
183 		pci_dma_addr = dma_map_page_attrs(&pdev->dev, pages[i], 0,  in ipu6_dma_alloc()
206 	info->vaddr = vmap(pages, count, VM_USERMAP, PAGE_KERNEL);  in ipu6_dma_alloc()
212 	info->pages = pages;  in ipu6_dma_alloc()
230 	__dma_free_buffer(dev, pages, size, attrs);  in ipu6_dma_alloc()
249 	struct page **pages;  in ipu6_dma_free()  local
262 	if (WARN_ON(!info->pages))  in ipu6_dma_free()
269 	pages = info->pages;  in ipu6_dma_free()
284 	__dma_free_buffer(dev, pages, size, attrs);  in ipu6_dma_free()
318 				     info->pages[i]);  in ipu6_dma_mmap()
478 	if (WARN_ON(!info->pages))  in ipu6_dma_get_sgtable()
483 	ret = sg_alloc_table_from_pages(sgt, info->pages, n_pages, 0, size,  in ipu6_dma_get_sgtable()