44 	struct exynos_drm_gem_buf *buffer = exynos_gem_obj->buffer;  in exynos_drm_fb_mmap()  local
52 	if (vm_size > buffer->size)  in exynos_drm_fb_mmap()
55 	ret = dma_mmap_attrs(helper->dev->dev, vma, buffer->pages,  in exynos_drm_fb_mmap()
56 		buffer->dma_addr, buffer->size, &buffer->dma_attrs);  in exynos_drm_fb_mmap()
83 	struct exynos_drm_gem_buf *buffer;  in exynos_drm_fbdev_update()  local
92 	buffer = exynos_drm_fb_buffer(fb, 0);  in exynos_drm_fbdev_update()
93 	if (!buffer) {  in exynos_drm_fbdev_update()
98 	nr_pages = buffer->size >> PAGE_SHIFT;  in exynos_drm_fbdev_update()
100 	buffer->kvaddr = (void __iomem *) vmap(buffer->pages,  in exynos_drm_fbdev_update()
103 	if (!buffer->kvaddr) {  in exynos_drm_fbdev_update()
114 	fbi->screen_base = buffer->kvaddr + offset;  in exynos_drm_fbdev_update()
306 	if (exynos_gem_obj->buffer->kvaddr)  in exynos_drm_fbdev_destroy()
307 		vunmap(exynos_gem_obj->buffer->kvaddr);  in exynos_drm_fbdev_destroy()