drm/exynos: remove 'pages' and 'page_size' elements in exynos gem buffer

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / exynos / exynos_drm_buf.c

diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.c b/drivers/gpu/drm/exynos/exynos_drm_buf.c
index 48c589661cbe8815f99ac7589c99bfca1963a074..72bf97b96ba0a676ceeea99dc0e72cfb472afbc6 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_buf.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_buf.c
@@ -34,8 +34,6 @@ static int lowlevel_buffer_allocate(struct drm_device *dev,
                unsigned int flags, struct exynos_drm_gem_buf *buf)
 {
        int ret = 0;
-       unsigned int npages, i = 0;
-       struct scatterlist *sgl;
        enum dma_attr attr = DMA_ATTR_FORCE_CONTIGUOUS;
 
        DRM_DEBUG_KMS("%s\n", __FILE__);
@@ -73,22 +71,6 @@ static int lowlevel_buffer_allocate(struct drm_device *dev,
                goto err_free_sgt;
        }
 
-       npages = buf->sgt->nents;
-
-       buf->pages = kzalloc(sizeof(struct page) * npages, GFP_KERNEL);
-       if (!buf->pages) {
-               DRM_ERROR("failed to allocate pages.\n");
-               ret = -ENOMEM;
-               goto err_free_table;
-       }
-
-       sgl = buf->sgt->sgl;
-       while (i < npages) {
-               buf->pages[i] = sg_page(sgl);
-               sgl = sg_next(sgl);
-               i++;
-       }
-
        DRM_DEBUG_KMS("vaddr(0x%lx), dma_addr(0x%lx), size(0x%lx)\n",
                        (unsigned long)buf->kvaddr,
                        (unsigned long)buf->dma_addr,
@@ -96,8 +78,6 @@ static int lowlevel_buffer_allocate(struct drm_device *dev,
 
        return ret;
 
-err_free_table:
-       sg_free_table(buf->sgt);
 err_free_sgt:
        kfree(buf->sgt);
        buf->sgt = NULL;