21 		unsigned int flags, struct exynos_drm_gem_buf *buf)  in lowlevel_buffer_allocate()  argument
27 	if (buf->dma_addr) {  in lowlevel_buffer_allocate()
32 	init_dma_attrs(&buf->dma_attrs);  in lowlevel_buffer_allocate()
40 		dma_set_attr(DMA_ATTR_FORCE_CONTIGUOUS, &buf->dma_attrs);  in lowlevel_buffer_allocate()
51 	dma_set_attr(attr, &buf->dma_attrs);  in lowlevel_buffer_allocate()
52 	dma_set_attr(DMA_ATTR_NO_KERNEL_MAPPING, &buf->dma_attrs);  in lowlevel_buffer_allocate()
54 	nr_pages = buf->size >> PAGE_SHIFT;  in lowlevel_buffer_allocate()
60 		buf->pages = drm_calloc_large(nr_pages, sizeof(struct page *));  in lowlevel_buffer_allocate()
61 		if (!buf->pages) {  in lowlevel_buffer_allocate()
66 		buf->cookie = dma_alloc_attrs(dev->dev,  in lowlevel_buffer_allocate()
67 					buf->size,  in lowlevel_buffer_allocate()
68 					&buf->dma_addr, GFP_KERNEL,  in lowlevel_buffer_allocate()
69 					&buf->dma_attrs);  in lowlevel_buffer_allocate()
70 		if (!buf->cookie) {  in lowlevel_buffer_allocate()
76 		start_addr = buf->dma_addr;  in lowlevel_buffer_allocate()
78 			buf->pages[i] = phys_to_page(start_addr);  in lowlevel_buffer_allocate()
84 		buf->pages = dma_alloc_attrs(dev->dev, buf->size,  in lowlevel_buffer_allocate()
85 					&buf->dma_addr, GFP_KERNEL,  in lowlevel_buffer_allocate()
86 					&buf->dma_attrs);  in lowlevel_buffer_allocate()
87 		if (!buf->pages) {  in lowlevel_buffer_allocate()
93 	buf->sgt = drm_prime_pages_to_sg(buf->pages, nr_pages);  in lowlevel_buffer_allocate()
94 	if (IS_ERR(buf->sgt)) {  in lowlevel_buffer_allocate()
96 		ret = PTR_ERR(buf->sgt);  in lowlevel_buffer_allocate()
101 			(unsigned long)buf->dma_addr,  in lowlevel_buffer_allocate()
102 			buf->size);  in lowlevel_buffer_allocate()
107 	dma_free_attrs(dev->dev, buf->size, buf->pages,  in lowlevel_buffer_allocate()
108 			(dma_addr_t)buf->dma_addr, &buf->dma_attrs);  in lowlevel_buffer_allocate()
109 	buf->dma_addr = (dma_addr_t)NULL;  in lowlevel_buffer_allocate()
112 		drm_free_large(buf->pages);  in lowlevel_buffer_allocate()
118 		unsigned int flags, struct exynos_drm_gem_buf *buf)  in lowlevel_buffer_deallocate()  argument
120 	if (!buf->dma_addr) {  in lowlevel_buffer_deallocate()
126 			(unsigned long)buf->dma_addr,  in lowlevel_buffer_deallocate()
127 			buf->size);  in lowlevel_buffer_deallocate()
129 	sg_free_table(buf->sgt);  in lowlevel_buffer_deallocate()
131 	kfree(buf->sgt);  in lowlevel_buffer_deallocate()
132 	buf->sgt = NULL;  in lowlevel_buffer_deallocate()
135 		dma_free_attrs(dev->dev, buf->size, buf->cookie,  in lowlevel_buffer_deallocate()
136 				(dma_addr_t)buf->dma_addr, &buf->dma_attrs);  in lowlevel_buffer_deallocate()
137 		drm_free_large(buf->pages);  in lowlevel_buffer_deallocate()
139 		dma_free_attrs(dev->dev, buf->size, buf->pages,  in lowlevel_buffer_deallocate()
140 				(dma_addr_t)buf->dma_addr, &buf->dma_attrs);  in lowlevel_buffer_deallocate()
142 	buf->dma_addr = (dma_addr_t)NULL;  in lowlevel_buffer_deallocate()
168 		struct exynos_drm_gem_buf *buf, unsigned int flags)  in exynos_drm_alloc_buf()  argument
175 	if (lowlevel_buffer_allocate(dev, flags, buf) < 0)  in exynos_drm_alloc_buf()