drm/msm: drop cache sync hack

Now that it isn't causing problems to use dma_map/unmap, we can drop the
hack of using dma_sync in certain cases.

Signed-off-by: Rob Clark <robdclark@chromium.org>

diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index b2f49152b4d4c268ac47fc9634bb1c5d20dcf908..3cb7aeb93fd3b78ddd5e1c1de4ba8189012343e2 100644 (file)
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -52,26 +52,16 @@ static void sync_for_device(struct msm_gem_object *msm_obj)
 {
        struct device *dev = msm_obj->base.dev->dev;
 
-       if (get_dma_ops(dev) && IS_ENABLED(CONFIG_ARM64)) {
-               dma_sync_sg_for_device(dev, msm_obj->sgt->sgl,
-                       msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
-       } else {
-               dma_map_sg(dev, msm_obj->sgt->sgl,
-                       msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
-       }
+       dma_map_sg(dev, msm_obj->sgt->sgl,
+               msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
 }
 
 static void sync_for_cpu(struct msm_gem_object *msm_obj)
 {
        struct device *dev = msm_obj->base.dev->dev;
 
-       if (get_dma_ops(dev) && IS_ENABLED(CONFIG_ARM64)) {
-               dma_sync_sg_for_cpu(dev, msm_obj->sgt->sgl,
-                       msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
-       } else {
-               dma_unmap_sg(dev, msm_obj->sgt->sgl,
-                       msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
-       }
+       dma_unmap_sg(dev, msm_obj->sgt->sgl,
+               msm_obj->sgt->nents, DMA_BIDIRECTIONAL);
 }
 
 /* allocate pages from VRAM carveout, used when no IOMMU: */