Cross Reference: /drivers/gpu/drm/exynos/exynos_drm

Lines Matching refs:buf
35 		unsigned int flags, struct exynos_drm_gem_buf *buf)
49 	if (buf->dma_addr) {
54 	if (buf->size >= SZ_1M) {
55 		npages = buf->size >> SECTION_SHIFT;
57 	} else if (buf->size >= SZ_64K) {
58 		npages = buf->size >> 16;
61 		npages = buf->size >> PAGE_SHIFT;
65 	buf->sgt = kzalloc(sizeof(struct sg_table), GFP_KERNEL);
66 	if (!buf->sgt) {
71 	ret = sg_alloc_table(buf->sgt, npages, GFP_KERNEL);
74 		kfree(buf->sgt);
75 		buf->sgt = NULL;
79 	buf->kvaddr = dma_alloc_writecombine(dev->dev, buf->size,
80 			&buf->dma_addr, GFP_KERNEL);
81 	if (!buf->kvaddr) {
87 	buf->pages = kzalloc(sizeof(struct page) * npages, GFP_KERNEL);
88 	if (!buf->pages) {
94 	sgl = buf->sgt->sgl;
95 	start_addr = buf->dma_addr;
98 		buf->pages[i] = phys_to_page(start_addr);
99 		sg_set_page(sgl, buf->pages[i], page_size, 0);
107 			(unsigned long)buf->kvaddr,
108 			(unsigned long)buf->dma_addr,
109 			buf->size);
113 	dma_free_writecombine(dev->dev, buf->size, buf->kvaddr,
114 			(dma_addr_t)buf->dma_addr);
115 	buf->dma_addr = (dma_addr_t)NULL;
117 	sg_free_table(buf->sgt);
118 	kfree(buf->sgt);
119 	buf->sgt = NULL;
125 		unsigned int flags, struct exynos_drm_gem_buf *buf)
139 	if (!buf->dma_addr) {
145 			(unsigned long)buf->kvaddr,
146 			(unsigned long)buf->dma_addr,
147 			buf->size);
149 	sg_free_table(buf->sgt);
151 	kfree(buf->sgt);
152 	buf->sgt = NULL;
154 	kfree(buf->pages);
155 	buf->pages = NULL;
157 	dma_free_writecombine(dev->dev, buf->size, buf->kvaddr,
158 				(dma_addr_t)buf->dma_addr);
159 	buf->dma_addr = (dma_addr_t)NULL;
195 		struct exynos_drm_gem_buf *buf, unsigned int flags)
202 	if (lowlevel_buffer_allocate(dev, flags, buf) < 0)