[PATCH v2 2/2] drm/virtio: add case for shmem objects in virtio_gpu_cleanup_object(..)

[Gurchetan Singh]

This function can be reused for hostmem objects.

v2: move virtio_gpu_is_shmem() check to virtio_gpu_cleanup_object()

Signed-off-by: Gurchetan Singh <gurchetansingh at chromium.org>
---
 drivers/gpu/drm/virtio/virtgpu_drv.h    |  2 +-
 drivers/gpu/drm/virtio/virtgpu_object.c | 32 +++++++++++++++----------
 2 files changed, 20 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index 8e2027da6cce..c1824bdf2418 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -371,7 +371,7 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
 			     struct virtio_gpu_object **bo_ptr,
 			     struct virtio_gpu_fence *fence);
 
-bool virtio_gpu_is_shmem(struct drm_gem_object *obj);
+bool virtio_gpu_is_shmem(struct virtio_gpu_object *bo);
 
 /* virtgpu_prime.c */
 struct drm_gem_object *virtgpu_gem_prime_import_sg_table(
diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c
index 1f8b062bb9eb..0610a2effa40 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -65,21 +65,27 @@ static void virtio_gpu_resource_id_put(struct virtio_gpu_device *vgdev, uint32_t
 void virtio_gpu_cleanup_object(struct virtio_gpu_object *bo)
 {
 	struct virtio_gpu_device *vgdev = bo->base.base.dev->dev_private;
-	struct virtio_gpu_object_shmem *shmem = to_virtio_gpu_shmem(bo);
 
-	if (shmem->pages) {
-		if (shmem->mapped) {
-			dma_unmap_sg(vgdev->vdev->dev.parent,
-				     shmem->pages->sgl, shmem->mapped,
-				     DMA_TO_DEVICE);
-			shmem->mapped = 0;
+	if (virtio_gpu_is_shmem(bo)) {
+		struct virtio_gpu_object_shmem *shmem = to_virtio_gpu_shmem(bo);
+
+		if (shmem->pages) {
+			if (shmem->mapped) {
+				dma_unmap_sg(vgdev->vdev->dev.parent,
+					     shmem->pages->sgl, shmem->mapped,
+					     DMA_TO_DEVICE);
+				shmem->mapped = 0;
+			}
+
+			sg_free_table(shmem->pages);
+			shmem->pages = NULL;
+			drm_gem_shmem_unpin(&bo->base.base);
 		}
-		sg_free_table(shmem->pages);
-		shmem->pages = NULL;
-		drm_gem_shmem_unpin(&bo->base.base);
+
+		drm_gem_shmem_free_object(&bo->base.base);
 	}
+
 	virtio_gpu_resource_id_put(vgdev, bo->hw_res_handle);
-	drm_gem_shmem_free_object(&bo->base.base);
 }
 
 static void virtio_gpu_free_object(struct drm_gem_object *obj)
@@ -110,9 +116,9 @@ static const struct drm_gem_object_funcs virtio_gpu_shmem_funcs = {
 	.mmap = drm_gem_shmem_mmap,
 };
 
-bool virtio_gpu_is_shmem(struct drm_gem_object *obj)
+bool virtio_gpu_is_shmem(struct virtio_gpu_object *bo)
 {
-	return obj->funcs == &virtio_gpu_shmem_funcs;
+	return bo->base.base.funcs == &virtio_gpu_shmem_funcs;
 }
 
 struct drm_gem_object *virtio_gpu_create_object(struct drm_device *dev,
-- 
2.25.1.481.gfbce0eb801-goog