drm/exynos: use directly DMA mapping APIs on g2d
There is no reason to be wapper functions to use DMA mapping APIs. Use
directly DMA mapping APIs and remove the wapper functions.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index 193d360..4935523 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -383,8 +383,8 @@
return;
out:
- exynos_gem_unmap_sgt_from_dma(drm_dev, g2d_userptr->sgt,
- DMA_BIDIRECTIONAL);
+ dma_unmap_sg(to_dma_dev(drm_dev), g2d_userptr->sgt->sgl,
+ g2d_userptr->sgt->nents, DMA_BIDIRECTIONAL);
pages = frame_vector_pages(g2d_userptr->vec);
if (!IS_ERR(pages)) {
@@ -501,10 +501,10 @@
g2d_userptr->sgt = sgt;
- ret = exynos_gem_map_sgt_with_dma(drm_dev, g2d_userptr->sgt,
- DMA_BIDIRECTIONAL);
- if (ret < 0) {
+ if (!dma_map_sg(to_dma_dev(drm_dev), sgt->sgl, sgt->nents,
+ DMA_BIDIRECTIONAL)) {
DRM_ERROR("failed to map sgt with dma region.\n");
+ ret = -ENOMEM;
goto err_sg_free_table;
}
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index 6c83884..72d9414 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -378,28 +378,6 @@
return 0;
}
-int exynos_gem_map_sgt_with_dma(struct drm_device *drm_dev,
- struct sg_table *sgt,
- enum dma_data_direction dir)
-{
- int nents;
-
- nents = dma_map_sg(to_dma_dev(drm_dev), sgt->sgl, sgt->nents, dir);
- if (!nents) {
- DRM_ERROR("failed to map sgl with dma.\n");
- return nents;
- }
-
- return 0;
-}
-
-void exynos_gem_unmap_sgt_from_dma(struct drm_device *drm_dev,
- struct sg_table *sgt,
- enum dma_data_direction dir)
-{
- dma_unmap_sg(to_dma_dev(drm_dev), sgt->sgl, sgt->nents, dir);
-}
-
void exynos_drm_gem_free_object(struct drm_gem_object *obj)
{
exynos_drm_gem_destroy(to_exynos_gem(obj));
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h
index 8951254..7810074 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h
@@ -121,16 +121,6 @@
/* set vm_flags and we can change the vm attribute to other one at here. */
int exynos_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
-/* map sgt with dma region. */
-int exynos_gem_map_sgt_with_dma(struct drm_device *drm_dev,
- struct sg_table *sgt,
- enum dma_data_direction dir);
-
-/* unmap sgt from dma region. */
-void exynos_gem_unmap_sgt_from_dma(struct drm_device *drm_dev,
- struct sg_table *sgt,
- enum dma_data_direction dir);
-
/* low-level interface prime helpers */
struct sg_table *exynos_drm_gem_prime_get_sg_table(struct drm_gem_object *obj);
struct drm_gem_object *