[PATCH 01/10] drm/virtio: log error responses

[PATCH 01/10] drm/virtio: log error responses

[Gerd Hoffmann]

If we got an error response code from the host, print it to the log.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/gpu/drm/virtio/virtgpu_vq.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index e27c4aedb8..6bc2008b0d 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -192,8 +192,16 @@ void virtio_gpu_dequeue_ctrl_func(struct work_struct *work)
 
 	list_for_each_entry_safe(entry, tmp, &reclaim_list, list) {
 		resp = (struct virtio_gpu_ctrl_hdr *)entry->resp_buf;
-		if (resp->type != cpu_to_le32(VIRTIO_GPU_RESP_OK_NODATA))
-			DRM_DEBUG("response 0x%x\n", le32_to_cpu(resp->type));
+		if (resp->type != cpu_to_le32(VIRTIO_GPU_RESP_OK_NODATA)) {
+			if (resp->type >= cpu_to_le32(VIRTIO_GPU_RESP_ERR_UNSPEC)) {
+				struct virtio_gpu_ctrl_hdr *cmd;
+				cmd = (struct virtio_gpu_ctrl_hdr *)entry->buf;
+				DRM_ERROR("response 0x%x (command 0x%x)\n",
+					  le32_to_cpu(resp->type),
+					  le32_to_cpu(cmd->type));
+			} else
+				DRM_DEBUG("response 0x%x\n", le32_to_cpu(resp->type));
+		}
 		if (resp->flags & cpu_to_le32(VIRTIO_GPU_FLAG_FENCE)) {
 			u64 f = le64_to_cpu(resp->fence_id);
 
-- 
2.9.3

[PATCH 02/10] drm/virtio: fix pageflip flush

[Gerd Hoffmann]

Sending the flush command only makes sense if we actually have
a framebuffer attached to the scanout (handle != 0).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/gpu/drm/virtio/virtgpu_plane.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c
index ead5c53d4e..548265b8e8 100644
--- a/drivers/gpu/drm/virtio/virtgpu_plane.c
+++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
@@ -130,11 +130,12 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane,
 				   plane->state->src_h >> 16,
 				   plane->state->src_x >> 16,
 				   plane->state->src_y >> 16);
-	virtio_gpu_cmd_resource_flush(vgdev, handle,
-				      plane->state->src_x >> 16,
-				      plane->state->src_y >> 16,
-				      plane->state->src_w >> 16,
-				      plane->state->src_h >> 16);
+	if (handle)
+		virtio_gpu_cmd_resource_flush(vgdev, handle,
+					      plane->state->src_x >> 16,
+					      plane->state->src_y >> 16,
+					      plane->state->src_w >> 16,
+					      plane->state->src_h >> 16);
 }
 
 static int virtio_gpu_cursor_prepare_fb(struct drm_plane *plane,
-- 
2.9.3

[PATCH 03/10] drm/virtio: drop virtio_gpu_fence_cleanup()

[Gerd Hoffmann]

Just call drm_fence_put directly instead.
Also set vgfb->fence to NULL after dropping the reference.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/gpu/drm/virtio/virtgpu_drv.h   | 1 -
 drivers/gpu/drm/virtio/virtgpu_fence.c | 8 --------
 drivers/gpu/drm/virtio/virtgpu_ioctl.c | 2 +-
 drivers/gpu/drm/virtio/virtgpu_plane.c | 6 ++++--
 4 files changed, 5 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index 63704915f8..bfb31fc3d0 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -337,7 +337,6 @@ int virtio_gpu_mmap(struct file *filp, struct vm_area_struct *vma);
 /* virtio_gpu_fence.c */
 struct virtio_gpu_fence *virtio_gpu_fence_alloc(
 	struct virtio_gpu_device *vgdev);
-void virtio_gpu_fence_cleanup(struct virtio_gpu_fence *fence);
 int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
 			  struct virtio_gpu_ctrl_hdr *cmd_hdr,
 			  struct virtio_gpu_fence *fence);
diff --git a/drivers/gpu/drm/virtio/virtgpu_fence.c b/drivers/gpu/drm/virtio/virtgpu_fence.c
index 4d6826b278..21bd4c4a32 100644
--- a/drivers/gpu/drm/virtio/virtgpu_fence.c
+++ b/drivers/gpu/drm/virtio/virtgpu_fence.c
@@ -81,14 +81,6 @@ struct virtio_gpu_fence *virtio_gpu_fence_alloc(struct virtio_gpu_device *vgdev)
 	return fence;
 }
 
-void virtio_gpu_fence_cleanup(struct virtio_gpu_fence *fence)
-{
-	if (!fence)
-		return;
-
-	dma_fence_put(&fence->f);
-}
-
 int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
 			  struct virtio_gpu_ctrl_hdr *cmd_hdr,
 			  struct virtio_gpu_fence *fence)
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index 161b80fee4..14ce8188c0 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -351,7 +351,7 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 		virtio_gpu_cmd_resource_create_3d(vgdev, qobj, &rc_3d);
 		ret = virtio_gpu_object_attach(vgdev, qobj, fence);
 		if (ret) {
-			virtio_gpu_fence_cleanup(fence);
+			dma_fence_put(&fence->f);
 			goto fail_backoff;
 		}
 		ttm_eu_fence_buffer_objects(&ticket, &validate_list, &fence->f);
diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c
index 548265b8e8..024c2aa0c9 100644
--- a/drivers/gpu/drm/virtio/virtgpu_plane.c
+++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
@@ -169,8 +169,10 @@ static void virtio_gpu_cursor_cleanup_fb(struct drm_plane *plane,
 		return;
 
 	vgfb = to_virtio_gpu_framebuffer(plane->state->fb);
-	if (vgfb->fence)
-		virtio_gpu_fence_cleanup(vgfb->fence);
+	if (vgfb->fence) {
+		dma_fence_put(&vgfb->fence->f);
+		vgfb->fence = NULL;
+	}
 }
 
 static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
-- 
2.9.3

[PATCH 04/10] drm/virtio: move virtio_gpu_object_{attach,detach} calls.

[Gerd Hoffmann]

Drop the dummy ttm backend implementation, add a real one for
TTM_PL_FLAG_TT objects.  The bin/unbind callbacks will call
virtio_gpu_object_{attach,detach}, to update the object state
on the host side, instead of invoking those calls from the
move_notify() callback.

With that in place the move and move_notify callbacks are not
needed any more, so drop them.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/gpu/drm/virtio/virtgpu_ttm.c | 92 ++++++++++--------------------------
 1 file changed, 24 insertions(+), 68 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_ttm.c b/drivers/gpu/drm/virtio/virtgpu_ttm.c
index 4bfbf25fab..77407976c7 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ttm.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ttm.c
@@ -194,42 +194,45 @@ static void virtio_gpu_ttm_io_mem_free(struct ttm_bo_device *bdev,
  */
 struct virtio_gpu_ttm_tt {
 	struct ttm_dma_tt		ttm;
-	struct virtio_gpu_device	*vgdev;
-	u64				offset;
+	struct virtio_gpu_object        *obj;
 };
 
-static int virtio_gpu_ttm_backend_bind(struct ttm_tt *ttm,
-				       struct ttm_mem_reg *bo_mem)
+static int virtio_gpu_ttm_tt_bind(struct ttm_tt *ttm,
+				  struct ttm_mem_reg *bo_mem)
 {
-	struct virtio_gpu_ttm_tt *gtt = (void *)ttm;
+	struct virtio_gpu_ttm_tt *gtt =
+		container_of(ttm, struct virtio_gpu_ttm_tt, ttm.ttm);
+	struct virtio_gpu_device *vgdev =
+		virtio_gpu_get_vgdev(gtt->obj->tbo.bdev);
 
-	gtt->offset = (unsigned long)(bo_mem->start << PAGE_SHIFT);
-	if (!ttm->num_pages)
-		WARN(1, "nothing to bind %lu pages for mreg %p back %p!\n",
-		     ttm->num_pages, bo_mem, ttm);
-
-	/* Not implemented */
+	virtio_gpu_object_attach(vgdev, gtt->obj, NULL);
 	return 0;
 }
 
-static int virtio_gpu_ttm_backend_unbind(struct ttm_tt *ttm)
+static int virtio_gpu_ttm_tt_unbind(struct ttm_tt *ttm)
 {
-	/* Not implemented */
+	struct virtio_gpu_ttm_tt *gtt =
+		container_of(ttm, struct virtio_gpu_ttm_tt, ttm.ttm);
+	struct virtio_gpu_device *vgdev =
+		virtio_gpu_get_vgdev(gtt->obj->tbo.bdev);
+
+	virtio_gpu_object_detach(vgdev, gtt->obj);
 	return 0;
 }
 
-static void virtio_gpu_ttm_backend_destroy(struct ttm_tt *ttm)
+static void virtio_gpu_ttm_tt_destroy(struct ttm_tt *ttm)
 {
-	struct virtio_gpu_ttm_tt *gtt = (void *)ttm;
+	struct virtio_gpu_ttm_tt *gtt =
+		container_of(ttm, struct virtio_gpu_ttm_tt, ttm.ttm);
 
 	ttm_dma_tt_fini(&gtt->ttm);
 	kfree(gtt);
 }
 
-static struct ttm_backend_func virtio_gpu_backend_func = {
-	.bind = &virtio_gpu_ttm_backend_bind,
-	.unbind = &virtio_gpu_ttm_backend_unbind,
-	.destroy = &virtio_gpu_ttm_backend_destroy,
+static struct ttm_backend_func virtio_gpu_tt_func = {
+	.bind = &virtio_gpu_ttm_tt_bind,
+	.unbind = &virtio_gpu_ttm_tt_unbind,
+	.destroy = &virtio_gpu_ttm_tt_destroy,
 };
 
 static struct ttm_tt *virtio_gpu_ttm_tt_create(struct ttm_buffer_object *bo,
@@ -242,8 +245,8 @@ static struct ttm_tt *virtio_gpu_ttm_tt_create(struct ttm_buffer_object *bo,
 	gtt = kzalloc(sizeof(struct virtio_gpu_ttm_tt), GFP_KERNEL);
 	if (gtt == NULL)
 		return NULL;
-	gtt->ttm.ttm.func = &virtio_gpu_backend_func;
-	gtt->vgdev = vgdev;
+	gtt->ttm.ttm.func = &virtio_gpu_tt_func;
+	gtt->obj = container_of(bo, struct virtio_gpu_object, tbo);
 	if (ttm_dma_tt_init(&gtt->ttm, bo, page_flags)) {
 		kfree(gtt);
 		return NULL;
@@ -251,51 +254,6 @@ static struct ttm_tt *virtio_gpu_ttm_tt_create(struct ttm_buffer_object *bo,
 	return &gtt->ttm.ttm;
 }
 
-static void virtio_gpu_move_null(struct ttm_buffer_object *bo,
-				 struct ttm_mem_reg *new_mem)
-{
-	struct ttm_mem_reg *old_mem = &bo->mem;
-
-	BUG_ON(old_mem->mm_node != NULL);
-	*old_mem = *new_mem;
-	new_mem->mm_node = NULL;
-}
-
-static int virtio_gpu_bo_move(struct ttm_buffer_object *bo, bool evict,
-			      struct ttm_operation_ctx *ctx,
-			      struct ttm_mem_reg *new_mem)
-{
-	int ret;
-
-	ret = ttm_bo_wait(bo, ctx->interruptible, ctx->no_wait_gpu);
-	if (ret)
-		return ret;
-
-	virtio_gpu_move_null(bo, new_mem);
-	return 0;
-}
-
-static void virtio_gpu_bo_move_notify(struct ttm_buffer_object *tbo,
-				      bool evict,
-				      struct ttm_mem_reg *new_mem)
-{
-	struct virtio_gpu_object *bo;
-	struct virtio_gpu_device *vgdev;
-
-	bo = container_of(tbo, struct virtio_gpu_object, tbo);
-	vgdev = (struct virtio_gpu_device *)bo->gem_base.dev->dev_private;
-
-	if (!new_mem || (new_mem->placement & TTM_PL_FLAG_SYSTEM)) {
-		if (bo->hw_res_handle)
-			virtio_gpu_object_detach(vgdev, bo);
-
-	} else if (new_mem->placement & TTM_PL_FLAG_TT) {
-		if (bo->hw_res_handle) {
-			virtio_gpu_object_attach(vgdev, bo, NULL);
-		}
-	}
-}
-
 static void virtio_gpu_bo_swap_notify(struct ttm_buffer_object *tbo)
 {
 	struct virtio_gpu_object *bo;
@@ -314,11 +272,9 @@ static struct ttm_bo_driver virtio_gpu_bo_driver = {
 	.init_mem_type = &virtio_gpu_init_mem_type,
 	.eviction_valuable = ttm_bo_eviction_valuable,
 	.evict_flags = &virtio_gpu_evict_flags,
-	.move = &virtio_gpu_bo_move,
 	.verify_access = &virtio_gpu_verify_access,
 	.io_mem_reserve = &virtio_gpu_ttm_io_mem_reserve,
 	.io_mem_free = &virtio_gpu_ttm_io_mem_free,
-	.move_notify = &virtio_gpu_bo_move_notify,
 	.swap_notify = &virtio_gpu_bo_swap_notify,
 };
 
-- 
2.9.3

[PATCH 05/10] drm/virtio: use struct to pass params to virtio_gpu_object_create()

[Gerd Hoffmann]

Create virtio_gpu_object_params, use that to pass object parameters to
virtio_gpu_object_create.  Also drop unused "kernel" parameter (unused,
always false).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/gpu/drm/virtio/virtgpu_drv.h    | 15 ++++++++++-----
 drivers/gpu/drm/virtio/virtgpu_gem.c    | 18 +++++++++++-------
 drivers/gpu/drm/virtio/virtgpu_ioctl.c  | 12 +++++++-----
 drivers/gpu/drm/virtio/virtgpu_object.c | 22 +++++++++-------------
 4 files changed, 37 insertions(+), 30 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index bfb31fc3d0..8cff8a3f7c 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -53,6 +53,11 @@
 /* virtgpu_drm_bus.c */
 int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev);
 
+struct virtio_gpu_object_params {
+	unsigned long size;
+	bool pinned;
+};
+
 struct virtio_gpu_object {
 	struct drm_gem_object gem_base;
 	uint32_t hw_res_handle;
@@ -220,16 +225,16 @@ int virtio_gpu_gem_init(struct virtio_gpu_device *vgdev);
 void virtio_gpu_gem_fini(struct virtio_gpu_device *vgdev);
 int virtio_gpu_gem_create(struct drm_file *file,
 			  struct drm_device *dev,
-			  uint64_t size,
+			  struct virtio_gpu_object_params *params,
 			  struct drm_gem_object **obj_p,
 			  uint32_t *handle_p);
 int virtio_gpu_gem_object_open(struct drm_gem_object *obj,
 			       struct drm_file *file);
 void virtio_gpu_gem_object_close(struct drm_gem_object *obj,
 				 struct drm_file *file);
-struct virtio_gpu_object *virtio_gpu_alloc_object(struct drm_device *dev,
-						  size_t size, bool kernel,
-						  bool pinned);
+struct virtio_gpu_object*
+virtio_gpu_alloc_object(struct drm_device *dev,
+			struct virtio_gpu_object_params *params);
 int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
 				struct drm_device *dev,
 				struct drm_mode_create_dumb *args);
@@ -345,7 +350,7 @@ void virtio_gpu_fence_event_process(struct virtio_gpu_device *vdev,
 
 /* virtio_gpu_object */
 int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
-			     unsigned long size, bool kernel, bool pinned,
+			     struct virtio_gpu_object_params *params,
 			     struct virtio_gpu_object **bo_ptr);
 void virtio_gpu_object_kunmap(struct virtio_gpu_object *bo);
 int virtio_gpu_object_kmap(struct virtio_gpu_object *bo);
diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c
index f065863939..384cd80bf3 100644
--- a/drivers/gpu/drm/virtio/virtgpu_gem.c
+++ b/drivers/gpu/drm/virtio/virtgpu_gem.c
@@ -34,15 +34,15 @@ void virtio_gpu_gem_free_object(struct drm_gem_object *gem_obj)
 		virtio_gpu_object_unref(&obj);
 }
 
-struct virtio_gpu_object *virtio_gpu_alloc_object(struct drm_device *dev,
-						  size_t size, bool kernel,
-						  bool pinned)
+struct virtio_gpu_object*
+virtio_gpu_alloc_object(struct drm_device *dev,
+			struct virtio_gpu_object_params *params)
 {
 	struct virtio_gpu_device *vgdev = dev->dev_private;
 	struct virtio_gpu_object *obj;
 	int ret;
 
-	ret = virtio_gpu_object_create(vgdev, size, kernel, pinned, &obj);
+	ret = virtio_gpu_object_create(vgdev, params, &obj);
 	if (ret)
 		return ERR_PTR(ret);
 
@@ -51,7 +51,7 @@ struct virtio_gpu_object *virtio_gpu_alloc_object(struct drm_device *dev,
 
 int virtio_gpu_gem_create(struct drm_file *file,
 			  struct drm_device *dev,
-			  uint64_t size,
+			  struct virtio_gpu_object_params *params,
 			  struct drm_gem_object **obj_p,
 			  uint32_t *handle_p)
 {
@@ -59,7 +59,7 @@ int virtio_gpu_gem_create(struct drm_file *file,
 	int ret;
 	u32 handle;
 
-	obj = virtio_gpu_alloc_object(dev, size, false, false);
+	obj = virtio_gpu_alloc_object(dev, params);
 	if (IS_ERR(obj))
 		return PTR_ERR(obj);
 
@@ -85,6 +85,9 @@ int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
 	struct virtio_gpu_device *vgdev = dev->dev_private;
 	struct drm_gem_object *gobj;
 	struct virtio_gpu_object *obj;
+	struct virtio_gpu_object_params params = {
+		.pinned = false,
+	};
 	int ret;
 	uint32_t pitch;
 	uint32_t format;
@@ -96,7 +99,8 @@ int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
 	args->size = pitch * args->height;
 	args->size = ALIGN(args->size, PAGE_SIZE);
 
-	ret = virtio_gpu_gem_create(file_priv, dev, args->size, &gobj,
+	params.size = args->size;
+	ret = virtio_gpu_gem_create(file_priv, dev, &params, &gobj,
 				    &args->handle);
 	if (ret)
 		goto fail;
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index 14ce8188c0..65b4a54f10 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -279,12 +279,14 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 	struct virtio_gpu_object *qobj;
 	struct drm_gem_object *obj;
 	uint32_t handle = 0;
-	uint32_t size;
 	struct list_head validate_list;
 	struct ttm_validate_buffer mainbuf;
 	struct virtio_gpu_fence *fence = NULL;
 	struct ww_acquire_ctx ticket;
 	struct virtio_gpu_resource_create_3d rc_3d;
+	struct virtio_gpu_object_params params = {
+		.pinned = false,
+	};
 
 	if (vgdev->has_virgl_3d == false) {
 		if (rc->depth > 1)
@@ -302,13 +304,13 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 	INIT_LIST_HEAD(&validate_list);
 	memset(&mainbuf, 0, sizeof(struct ttm_validate_buffer));
 
-	size = rc->size;
+	params.size = rc->size;
 
 	/* allocate a single page size object */
-	if (size == 0)
-		size = PAGE_SIZE;
+	if (params.size == 0)
+		params.size = PAGE_SIZE;
 
-	qobj = virtio_gpu_alloc_object(dev, size, false, false);
+	qobj = virtio_gpu_alloc_object(dev, &params);
 	if (IS_ERR(qobj))
 		return PTR_ERR(qobj);
 	obj = &qobj->gem_base;
diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c
index f39a183d59..62367e3f80 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -79,21 +79,16 @@ static void virtio_gpu_init_ttm_placement(struct virtio_gpu_object *vgbo,
 }
 
 int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
-			     unsigned long size, bool kernel, bool pinned,
+			     struct virtio_gpu_object_params *params,
 			     struct virtio_gpu_object **bo_ptr)
 {
 	struct virtio_gpu_object *bo;
-	enum ttm_bo_type type;
 	size_t acc_size;
 	int ret;
 
-	if (kernel)
-		type = ttm_bo_type_kernel;
-	else
-		type = ttm_bo_type_device;
 	*bo_ptr = NULL;
 
-	acc_size = ttm_bo_dma_acc_size(&vgdev->mman.bdev, size,
+	acc_size = ttm_bo_dma_acc_size(&vgdev->mman.bdev, params->size,
 				       sizeof(struct virtio_gpu_object));
 
 	bo = kzalloc(sizeof(struct virtio_gpu_object), GFP_KERNEL);
@@ -104,19 +99,20 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
 		kfree(bo);
 		return ret;
 	}
-	size = roundup(size, PAGE_SIZE);
-	ret = drm_gem_object_init(vgdev->ddev, &bo->gem_base, size);
+	params->size = roundup(params->size, PAGE_SIZE);
+	ret = drm_gem_object_init(vgdev->ddev, &bo->gem_base, params->size);
 	if (ret != 0) {
 		virtio_gpu_resource_id_put(vgdev, bo->hw_res_handle);
 		kfree(bo);
 		return ret;
 	}
 	bo->dumb = false;
-	virtio_gpu_init_ttm_placement(bo, pinned);
+	virtio_gpu_init_ttm_placement(bo, params->pinned);
 
-	ret = ttm_bo_init(&vgdev->mman.bdev, &bo->tbo, size, type,
-			  &bo->placement, 0, !kernel, acc_size,
-			  NULL, NULL, &virtio_gpu_ttm_bo_destroy);
+	ret = ttm_bo_init(&vgdev->mman.bdev, &bo->tbo, params->size,
+			  ttm_bo_type_device, &bo->placement, 0,
+			  true, acc_size, NULL, NULL,
+			  &virtio_gpu_ttm_bo_destroy);
 	/* ttm_bo_init failure will call the destroy */
 	if (ret != 0)
 		return ret;
-- 
2.9.3

[PATCH 06/10] drm/virtio: params struct for virtio_gpu_cmd_create_resource()

[Gerd Hoffmann]

Add format, width and height to the virtio_gpu_object_params struct
and use the struct for virtio_gpu_cmd_create_resource().

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/gpu/drm/virtio/virtgpu_drv.h   |  7 ++++---
 drivers/gpu/drm/virtio/virtgpu_gem.c   |  8 ++++----
 drivers/gpu/drm/virtio/virtgpu_ioctl.c |  6 ++++--
 drivers/gpu/drm/virtio/virtgpu_vq.c    | 10 ++++------
 4 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index 8cff8a3f7c..8c65deadd0 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -54,6 +54,9 @@
 int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev);
 
 struct virtio_gpu_object_params {
+	uint32_t format;
+	uint32_t width;
+	uint32_t height;
 	unsigned long size;
 	bool pinned;
 };
@@ -251,9 +254,7 @@ int virtio_gpu_alloc_vbufs(struct virtio_gpu_device *vgdev);
 void virtio_gpu_free_vbufs(struct virtio_gpu_device *vgdev);
 void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
 				    struct virtio_gpu_object *bo,
-				    uint32_t format,
-				    uint32_t width,
-				    uint32_t height);
+				    struct virtio_gpu_object_params *params);
 void virtio_gpu_cmd_unref_resource(struct virtio_gpu_device *vgdev,
 				   uint32_t resource_id);
 void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c
index 384cd80bf3..eea6c6e8db 100644
--- a/drivers/gpu/drm/virtio/virtgpu_gem.c
+++ b/drivers/gpu/drm/virtio/virtgpu_gem.c
@@ -90,7 +90,6 @@ int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
 	};
 	int ret;
 	uint32_t pitch;
-	uint32_t format;
 
 	if (args->bpp != 32)
 		return -EINVAL;
@@ -99,16 +98,17 @@ int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
 	args->size = pitch * args->height;
 	args->size = ALIGN(args->size, PAGE_SIZE);
 
+	params.format = virtio_gpu_translate_format(DRM_FORMAT_HOST_XRGB8888);
+	params.width = args->width;
+	params.height = args->height;
 	params.size = args->size;
 	ret = virtio_gpu_gem_create(file_priv, dev, &params, &gobj,
 				    &args->handle);
 	if (ret)
 		goto fail;
 
-	format = virtio_gpu_translate_format(DRM_FORMAT_HOST_XRGB8888);
 	obj = gem_to_virtio_gpu_obj(gobj);
-	virtio_gpu_cmd_create_resource(vgdev, obj, format,
-				       args->width, args->height);
+	virtio_gpu_cmd_create_resource(vgdev, obj, &params);
 
 	/* attach the object to the resource */
 	ret = virtio_gpu_object_attach(vgdev, obj, NULL);
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index 65b4a54f10..33112c8495 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -304,6 +304,9 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 	INIT_LIST_HEAD(&validate_list);
 	memset(&mainbuf, 0, sizeof(struct ttm_validate_buffer));
 
+	params.format = rc->format;
+	params.width = rc->width;
+	params.height = rc->height;
 	params.size = rc->size;
 
 	/* allocate a single page size object */
@@ -316,8 +319,7 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 	obj = &qobj->gem_base;
 
 	if (!vgdev->has_virgl_3d) {
-		virtio_gpu_cmd_create_resource(vgdev, qobj, rc->format,
-					       rc->width, rc->height);
+		virtio_gpu_cmd_create_resource(vgdev, qobj, &params);
 
 		ret = virtio_gpu_object_attach(vgdev, qobj, NULL);
 	} else {
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 6bc2008b0d..363b8b8577 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -376,9 +376,7 @@ static int virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev,
 /* create a basic resource */
 void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
 				    struct virtio_gpu_object *bo,
-				    uint32_t format,
-				    uint32_t width,
-				    uint32_t height)
+				    struct virtio_gpu_object_params *params)
 {
 	struct virtio_gpu_resource_create_2d *cmd_p;
 	struct virtio_gpu_vbuffer *vbuf;
@@ -388,9 +386,9 @@ void virtio_gpu_cmd_create_resource(struct virtio_gpu_device *vgdev,
 
 	cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_RESOURCE_CREATE_2D);
 	cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle);
-	cmd_p->format = cpu_to_le32(format);
-	cmd_p->width = cpu_to_le32(width);
-	cmd_p->height = cpu_to_le32(height);
+	cmd_p->format = cpu_to_le32(params->format);
+	cmd_p->width = cpu_to_le32(params->width);
+	cmd_p->height = cpu_to_le32(params->height);
 
 	virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
 	bo->created = true;
-- 
2.9.3

[PATCH 07/10] drm/virtio: params struct for virtio_gpu_cmd_create_resource_3d()

[Gerd Hoffmann]

Add 3d resource parameters to virtio_gpu_object_params struct
and use it for virtio_gpu_cmd_resource_create_3d() calls.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/gpu/drm/virtio/virtgpu_drv.h   | 10 +++++++++-
 drivers/gpu/drm/virtio/virtgpu_ioctl.c | 25 ++++++++++---------------
 drivers/gpu/drm/virtio/virtgpu_vq.c    | 16 +++++++++++++---
 3 files changed, 32 insertions(+), 19 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index 8c65deadd0..f9959306ae 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -59,6 +59,14 @@ struct virtio_gpu_object_params {
 	uint32_t height;
 	unsigned long size;
 	bool pinned;
+	/* 3d */
+	uint32_t target;
+	uint32_t bind;
+	uint32_t depth;
+	uint32_t array_size;
+	uint32_t last_level;
+	uint32_t nr_samples;
+	uint32_t flags;
 };
 
 struct virtio_gpu_object {
@@ -313,7 +321,7 @@ void virtio_gpu_cmd_transfer_to_host_3d(struct virtio_gpu_device *vgdev,
 void
 virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
 				  struct virtio_gpu_object *bo,
-				  struct virtio_gpu_resource_create_3d *rc_3d);
+				  struct virtio_gpu_object_params *params);
 void virtio_gpu_ctrl_ack(struct virtqueue *vq);
 void virtio_gpu_cursor_ack(struct virtqueue *vq);
 void virtio_gpu_fence_ack(struct virtqueue *vq);
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index 33112c8495..52d6ec2dde 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -283,7 +283,6 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 	struct ttm_validate_buffer mainbuf;
 	struct virtio_gpu_fence *fence = NULL;
 	struct ww_acquire_ctx ticket;
-	struct virtio_gpu_resource_create_3d rc_3d;
 	struct virtio_gpu_object_params params = {
 		.pinned = false,
 	};
@@ -308,7 +307,15 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 	params.width = rc->width;
 	params.height = rc->height;
 	params.size = rc->size;
-
+	if (vgdev->has_virgl_3d) {
+		params.target = rc->target;
+		params.bind = rc->bind;
+		params.depth = rc->depth;
+		params.array_size = rc->array_size;
+		params.last_level = rc->last_level;
+		params.nr_samples = rc->nr_samples;
+		params.flags = rc->flags;
+	}
 	/* allocate a single page size object */
 	if (params.size == 0)
 		params.size = PAGE_SIZE;
@@ -334,25 +341,13 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 			goto fail_unref;
 		}
 
-		rc_3d.resource_id = cpu_to_le32(qobj->hw_res_handle);
-		rc_3d.target = cpu_to_le32(rc->target);
-		rc_3d.format = cpu_to_le32(rc->format);
-		rc_3d.bind = cpu_to_le32(rc->bind);
-		rc_3d.width = cpu_to_le32(rc->width);
-		rc_3d.height = cpu_to_le32(rc->height);
-		rc_3d.depth = cpu_to_le32(rc->depth);
-		rc_3d.array_size = cpu_to_le32(rc->array_size);
-		rc_3d.last_level = cpu_to_le32(rc->last_level);
-		rc_3d.nr_samples = cpu_to_le32(rc->nr_samples);
-		rc_3d.flags = cpu_to_le32(rc->flags);
-
 		fence = virtio_gpu_fence_alloc(vgdev);
 		if (!fence) {
 			ret = -ENOMEM;
 			goto fail_backoff;
 		}
 
-		virtio_gpu_cmd_resource_create_3d(vgdev, qobj, &rc_3d);
+		virtio_gpu_cmd_resource_create_3d(vgdev, qobj, &params);
 		ret = virtio_gpu_object_attach(vgdev, qobj, fence);
 		if (ret) {
 			dma_fence_put(&fence->f);
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
index 363b8b8577..ca93ec6ca3 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -826,7 +826,7 @@ void virtio_gpu_cmd_context_detach_resource(struct virtio_gpu_device *vgdev,
 void
 virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
 				  struct virtio_gpu_object *bo,
-				  struct virtio_gpu_resource_create_3d *rc_3d)
+				  struct virtio_gpu_object_params *params)
 {
 	struct virtio_gpu_resource_create_3d *cmd_p;
 	struct virtio_gpu_vbuffer *vbuf;
@@ -834,9 +834,19 @@ virtio_gpu_cmd_resource_create_3d(struct virtio_gpu_device *vgdev,
 	cmd_p = virtio_gpu_alloc_cmd(vgdev, &vbuf, sizeof(*cmd_p));
 	memset(cmd_p, 0, sizeof(*cmd_p));
 
-	*cmd_p = *rc_3d;
 	cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_RESOURCE_CREATE_3D);
-	cmd_p->hdr.flags = 0;
+	cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle);
+	cmd_p->format = cpu_to_le32(params->format);
+	cmd_p->width = cpu_to_le32(params->width);
+	cmd_p->height = cpu_to_le32(params->height);
+
+	cmd_p->target = cpu_to_le32(params->target);
+	cmd_p->bind = cpu_to_le32(params->bind);
+	cmd_p->depth = cpu_to_le32(params->depth);
+	cmd_p->array_size = cpu_to_le32(params->array_size);
+	cmd_p->last_level = cpu_to_le32(params->last_level);
+	cmd_p->nr_samples = cpu_to_le32(params->nr_samples);
+	cmd_p->flags = cpu_to_le32(params->flags);
 
 	virtio_gpu_queue_ctrl_buffer(vgdev, vbuf);
 	bo->created = true;
-- 
2.9.3

[PATCH 08/10] drm/virtio: drop fencing in virtio_gpu_resource_create_ioctl

[Gerd Hoffmann]

There is no need to wait for completion here.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/gpu/drm/virtio/virtgpu_ioctl.c | 51 +---------------------------------
 1 file changed, 1 insertion(+), 50 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index 52d6ec2dde..65ac61f86a 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -279,10 +279,6 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 	struct virtio_gpu_object *qobj;
 	struct drm_gem_object *obj;
 	uint32_t handle = 0;
-	struct list_head validate_list;
-	struct ttm_validate_buffer mainbuf;
-	struct virtio_gpu_fence *fence = NULL;
-	struct ww_acquire_ctx ticket;
 	struct virtio_gpu_object_params params = {
 		.pinned = false,
 	};
@@ -300,9 +296,6 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 			return -EINVAL;
 	}
 
-	INIT_LIST_HEAD(&validate_list);
-	memset(&mainbuf, 0, sizeof(struct ttm_validate_buffer));
-
 	params.format = rc->format;
 	params.width = rc->width;
 	params.height = rc->height;
@@ -330,62 +323,20 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 
 		ret = virtio_gpu_object_attach(vgdev, qobj, NULL);
 	} else {
-		/* use a gem reference since unref list undoes them */
-		drm_gem_object_get(&qobj->gem_base);
-		mainbuf.bo = &qobj->tbo;
-		list_add(&mainbuf.head, &validate_list);
-
-		ret = virtio_gpu_object_list_validate(&ticket, &validate_list);
-		if (ret) {
-			DRM_DEBUG("failed to validate\n");
-			goto fail_unref;
-		}
-
-		fence = virtio_gpu_fence_alloc(vgdev);
-		if (!fence) {
-			ret = -ENOMEM;
-			goto fail_backoff;
-		}
-
 		virtio_gpu_cmd_resource_create_3d(vgdev, qobj, &params);
-		ret = virtio_gpu_object_attach(vgdev, qobj, fence);
-		if (ret) {
-			dma_fence_put(&fence->f);
-			goto fail_backoff;
-		}
-		ttm_eu_fence_buffer_objects(&ticket, &validate_list, &fence->f);
+		ret = virtio_gpu_object_attach(vgdev, qobj, NULL);
 	}
 
 	ret = drm_gem_handle_create(file_priv, obj, &handle);
 	if (ret) {
-
 		drm_gem_object_release(obj);
-		if (vgdev->has_virgl_3d) {
-			virtio_gpu_unref_list(&validate_list);
-			dma_fence_put(&fence->f);
-		}
 		return ret;
 	}
 	drm_gem_object_put_unlocked(obj);
 
 	rc->res_handle = qobj->hw_res_handle; /* similiar to a VM address */
 	rc->bo_handle = handle;
-
-	if (vgdev->has_virgl_3d) {
-		virtio_gpu_unref_list(&validate_list);
-		dma_fence_put(&fence->f);
-	}
 	return 0;
-fail_backoff:
-	ttm_eu_backoff_reservation(&ticket, &validate_list);
-fail_unref:
-	if (vgdev->has_virgl_3d) {
-		virtio_gpu_unref_list(&validate_list);
-		dma_fence_put(&fence->f);
-	}
-//fail_obj:
-//	drm_gem_object_handle_unreference_unlocked(obj);
-	return ret;
 }
 
 static int virtio_gpu_resource_info_ioctl(struct drm_device *dev, void *data,
-- 
2.9.3

[PATCH 09/10] drm/virtio: move virtio_gpu_cmd_create_resource call into virtio_gpu_object_create

[Gerd Hoffmann]

Specifically call virtio_gpu_object_create() before ttm_bo_init().

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/gpu/drm/virtio/virtgpu_drv.h    |  2 ++
 drivers/gpu/drm/virtio/virtgpu_gem.c    |  3 +--
 drivers/gpu/drm/virtio/virtgpu_ioctl.c  | 10 ++--------
 drivers/gpu/drm/virtio/virtgpu_object.c | 10 ++++++++--
 4 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index f9959306ae..f50ca81132 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -59,7 +59,9 @@ struct virtio_gpu_object_params {
 	uint32_t height;
 	unsigned long size;
 	bool pinned;
+	bool dumb;
 	/* 3d */
+	bool virgl;
 	uint32_t target;
 	uint32_t bind;
 	uint32_t depth;
diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c
index eea6c6e8db..ca84990382 100644
--- a/drivers/gpu/drm/virtio/virtgpu_gem.c
+++ b/drivers/gpu/drm/virtio/virtgpu_gem.c
@@ -102,20 +102,19 @@ int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
 	params.width = args->width;
 	params.height = args->height;
 	params.size = args->size;
+	params.dumb = true;
 	ret = virtio_gpu_gem_create(file_priv, dev, &params, &gobj,
 				    &args->handle);
 	if (ret)
 		goto fail;
 
 	obj = gem_to_virtio_gpu_obj(gobj);
-	virtio_gpu_cmd_create_resource(vgdev, obj, &params);
 
 	/* attach the object to the resource */
 	ret = virtio_gpu_object_attach(vgdev, obj, NULL);
 	if (ret)
 		goto fail;
 
-	obj->dumb = true;
 	args->pitch = pitch;
 	return ret;
 
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index 65ac61f86a..e5bd1fed56 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -301,6 +301,7 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 	params.height = rc->height;
 	params.size = rc->size;
 	if (vgdev->has_virgl_3d) {
+		params.virgl = true;
 		params.target = rc->target;
 		params.bind = rc->bind;
 		params.depth = rc->depth;
@@ -318,14 +319,7 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 		return PTR_ERR(qobj);
 	obj = &qobj->gem_base;
 
-	if (!vgdev->has_virgl_3d) {
-		virtio_gpu_cmd_create_resource(vgdev, qobj, &params);
-
-		ret = virtio_gpu_object_attach(vgdev, qobj, NULL);
-	} else {
-		virtio_gpu_cmd_resource_create_3d(vgdev, qobj, &params);
-		ret = virtio_gpu_object_attach(vgdev, qobj, NULL);
-	}
+	ret = virtio_gpu_object_attach(vgdev, qobj, NULL);
 
 	ret = drm_gem_handle_create(file_priv, obj, &handle);
 	if (ret) {
diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c
index 62367e3f80..94da9e68d2 100644
--- a/drivers/gpu/drm/virtio/virtgpu_object.c
+++ b/drivers/gpu/drm/virtio/virtgpu_object.c
@@ -106,9 +106,15 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
 		kfree(bo);
 		return ret;
 	}
-	bo->dumb = false;
+	bo->dumb = params->dumb;
+
+	if (params->virgl) {
+		virtio_gpu_cmd_resource_create_3d(vgdev, bo, params);
+	} else {
+		virtio_gpu_cmd_create_resource(vgdev, bo, params);
+	}
+
 	virtio_gpu_init_ttm_placement(bo, params->pinned);
-
 	ret = ttm_bo_init(&vgdev->mman.bdev, &bo->tbo, params->size,
 			  ttm_bo_type_device, &bo->placement, 0,
 			  true, acc_size, NULL, NULL,
-- 
2.9.3

[PATCH 10/10] drm/virtio: ditch virtio_gpu_object_attach() calls

[Gerd Hoffmann]

With virtio_gpu_object_create() being called earlier ttm_bo_init() will
handle the virtio_gpu_object_attach() (via backend binding), so we can
drop the extra calls now.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 drivers/gpu/drm/virtio/virtgpu_gem.c   | 9 ---------
 drivers/gpu/drm/virtio/virtgpu_ioctl.c | 2 --
 2 files changed, 11 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c
index ca84990382..4b01e5655c 100644
--- a/drivers/gpu/drm/virtio/virtgpu_gem.c
+++ b/drivers/gpu/drm/virtio/virtgpu_gem.c
@@ -82,9 +82,7 @@ int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
 				struct drm_device *dev,
 				struct drm_mode_create_dumb *args)
 {
-	struct virtio_gpu_device *vgdev = dev->dev_private;
 	struct drm_gem_object *gobj;
-	struct virtio_gpu_object *obj;
 	struct virtio_gpu_object_params params = {
 		.pinned = false,
 	};
@@ -108,13 +106,6 @@ int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
 	if (ret)
 		goto fail;
 
-	obj = gem_to_virtio_gpu_obj(gobj);
-
-	/* attach the object to the resource */
-	ret = virtio_gpu_object_attach(vgdev, obj, NULL);
-	if (ret)
-		goto fail;
-
 	args->pitch = pitch;
 	return ret;
 
diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
index e5bd1fed56..90b3955b6f 100644
--- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
+++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
@@ -319,8 +319,6 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
 		return PTR_ERR(qobj);
 	obj = &qobj->gem_base;
 
-	ret = virtio_gpu_object_attach(vgdev, qobj, NULL);
-
 	ret = drm_gem_handle_create(file_priv, obj, &handle);
 	if (ret) {
 		drm_gem_object_release(obj);
-- 
2.9.3

Re: [PATCH 01/10] drm/virtio: log error responses

[Oleksandr Andrushchenko]

On 12/19/18 2:26 PM, Gerd Hoffmann wrote:
> If we got an error response code from the host, print it to the log.
>
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
> ---
>   drivers/gpu/drm/virtio/virtgpu_vq.c | 12 ++++++++++--
>   1 file changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
> index e27c4aedb8..6bc2008b0d 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_vq.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
> @@ -192,8 +192,16 @@ void virtio_gpu_dequeue_ctrl_func(struct work_struct *work)
>   
>   	list_for_each_entry_safe(entry, tmp, &reclaim_list, list) {
>   		resp = (struct virtio_gpu_ctrl_hdr *)entry->resp_buf;
> -		if (resp->type != cpu_to_le32(VIRTIO_GPU_RESP_OK_NODATA))
> -			DRM_DEBUG("response 0x%x\n", le32_to_cpu(resp->type));
> +		if (resp->type != cpu_to_le32(VIRTIO_GPU_RESP_OK_NODATA)) {
> +			if (resp->type >= cpu_to_le32(VIRTIO_GPU_RESP_ERR_UNSPEC)) {
> +				struct virtio_gpu_ctrl_hdr *cmd;
> +				cmd = (struct virtio_gpu_ctrl_hdr *)entry->buf;
> +				DRM_ERROR("response 0x%x (command 0x%x)\n",
> +					  le32_to_cpu(resp->type),
> +					  le32_to_cpu(cmd->type));
> +			} else
> +				DRM_DEBUG("response 0x%x\n", le32_to_cpu(resp->type));
> +		}
>   		if (resp->flags & cpu_to_le32(VIRTIO_GPU_FLAG_FENCE)) {
>   			u64 f = le64_to_cpu(resp->fence_id);
>   

Re: [PATCH 02/10] drm/virtio: fix pageflip flush

[Ezequiel Garcia]

On Wed, 2018-12-19 at 13:27 +0100, Gerd Hoffmann wrote:
> Sending the flush command only makes sense if we actually have
> a framebuffer attached to the scanout (handle != 0).
> 
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>  drivers/gpu/drm/virtio/virtgpu_plane.c | 11 ++++++-----
>  1 file changed, 6 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c
> index ead5c53d4e..548265b8e8 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_plane.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
> @@ -130,11 +130,12 @@ static void virtio_gpu_primary_plane_update(struct drm_plane *plane,
>  				   plane->state->src_h >> 16,
>  				   plane->state->src_x >> 16,
>  				   plane->state->src_y >> 16);
> -	virtio_gpu_cmd_resource_flush(vgdev, handle,
> -				      plane->state->src_x >> 16,
> -				      plane->state->src_y >> 16,
> -				      plane->state->src_w >> 16,
> -				      plane->state->src_h >> 16);
> +	if (handle)
> +		virtio_gpu_cmd_resource_flush(vgdev, handle,
> +					      plane->state->src_x >> 16,
> +					      plane->state->src_y >> 16,
> +					      plane->state->src_w >> 16,
> +					      plane->state->src_h >> 16);
>  }
>  
>  static int virtio_gpu_cursor_prepare_fb(struct drm_plane *plane,

Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>

Regards,
Ezequiel

Re: [PATCH 03/10] drm/virtio: drop virtio_gpu_fence_cleanup()

[Ezequiel Garcia]

On Wed, 2018-12-19 at 13:27 +0100, Gerd Hoffmann wrote:
> Just call drm_fence_put directly instead.
> Also set vgfb->fence to NULL after dropping the reference.
> 
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>  drivers/gpu/drm/virtio/virtgpu_drv.h   | 1 -
>  drivers/gpu/drm/virtio/virtgpu_fence.c | 8 --------
>  drivers/gpu/drm/virtio/virtgpu_ioctl.c | 2 +-
>  drivers/gpu/drm/virtio/virtgpu_plane.c | 6 ++++--
>  4 files changed, 5 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
> index 63704915f8..bfb31fc3d0 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_drv.h
> +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
> @@ -337,7 +337,6 @@ int virtio_gpu_mmap(struct file *filp, struct vm_area_struct *vma);
>  /* virtio_gpu_fence.c */
>  struct virtio_gpu_fence *virtio_gpu_fence_alloc(
>  	struct virtio_gpu_device *vgdev);
> -void virtio_gpu_fence_cleanup(struct virtio_gpu_fence *fence);
>  int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
>  			  struct virtio_gpu_ctrl_hdr *cmd_hdr,
>  			  struct virtio_gpu_fence *fence);
> diff --git a/drivers/gpu/drm/virtio/virtgpu_fence.c b/drivers/gpu/drm/virtio/virtgpu_fence.c
> index 4d6826b278..21bd4c4a32 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_fence.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_fence.c
> @@ -81,14 +81,6 @@ struct virtio_gpu_fence *virtio_gpu_fence_alloc(struct virtio_gpu_device *vgdev)
>  	return fence;
>  }
>  
> -void virtio_gpu_fence_cleanup(struct virtio_gpu_fence *fence)
> -{
> -	if (!fence)
> -		return;
> -
> -	dma_fence_put(&fence->f);
> -}
> -
>  int virtio_gpu_fence_emit(struct virtio_gpu_device *vgdev,
>  			  struct virtio_gpu_ctrl_hdr *cmd_hdr,
>  			  struct virtio_gpu_fence *fence)
> diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> index 161b80fee4..14ce8188c0 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> @@ -351,7 +351,7 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
>  		virtio_gpu_cmd_resource_create_3d(vgdev, qobj, &rc_3d);
>  		ret = virtio_gpu_object_attach(vgdev, qobj, fence);
>  		if (ret) {
> -			virtio_gpu_fence_cleanup(fence);
> +			dma_fence_put(&fence->f);
>  			goto fail_backoff;
>  		}
>  		ttm_eu_fence_buffer_objects(&ticket, &validate_list, &fence->f);
> diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c
> index 548265b8e8..024c2aa0c9 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_plane.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
> @@ -169,8 +169,10 @@ static void virtio_gpu_cursor_cleanup_fb(struct drm_plane *plane,
>  		return;
>  
>  	vgfb = to_virtio_gpu_framebuffer(plane->state->fb);
> -	if (vgfb->fence)
> -		virtio_gpu_fence_cleanup(vgfb->fence);
> +	if (vgfb->fence) {
> +		dma_fence_put(&vgfb->fence->f);
> +		vgfb->fence = NULL;
> +	}
>  }
>  
>  static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,

Reviewed-by: Ezequiel Garcia <ezequiel@collabora.com>

Regards,
Ezequiel

Re: [PATCH 05/10] drm/virtio: use struct to pass params to virtio_gpu_object_create()

[Ezequiel Garcia]

On Wed, 2018-12-19 at 13:27 +0100, Gerd Hoffmann wrote:
> Create virtio_gpu_object_params, use that to pass object parameters to
> virtio_gpu_object_create.  Also drop unused "kernel" parameter (unused,
> always false).
> 
> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
> ---
>  drivers/gpu/drm/virtio/virtgpu_drv.h    | 15 ++++++++++-----
>  drivers/gpu/drm/virtio/virtgpu_gem.c    | 18 +++++++++++-------
>  drivers/gpu/drm/virtio/virtgpu_ioctl.c  | 12 +++++++-----
>  drivers/gpu/drm/virtio/virtgpu_object.c | 22 +++++++++-------------
>  4 files changed, 37 insertions(+), 30 deletions(-)
> 
> diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
> index bfb31fc3d0..8cff8a3f7c 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_drv.h
> +++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
> @@ -53,6 +53,11 @@
>  /* virtgpu_drm_bus.c */
>  int drm_virtio_init(struct drm_driver *driver, struct virtio_device *vdev);
>  
> +struct virtio_gpu_object_params {
> +	unsigned long size;
> +	bool pinned;
> +};
> +
>  struct virtio_gpu_object {
>  	struct drm_gem_object gem_base;
>  	uint32_t hw_res_handle;
> @@ -220,16 +225,16 @@ int virtio_gpu_gem_init(struct virtio_gpu_device *vgdev);
>  void virtio_gpu_gem_fini(struct virtio_gpu_device *vgdev);
>  int virtio_gpu_gem_create(struct drm_file *file,
>  			  struct drm_device *dev,
> -			  uint64_t size,
> +			  struct virtio_gpu_object_params *params,
>  			  struct drm_gem_object **obj_p,
>  			  uint32_t *handle_p);
>  int virtio_gpu_gem_object_open(struct drm_gem_object *obj,
>  			       struct drm_file *file);
>  void virtio_gpu_gem_object_close(struct drm_gem_object *obj,
>  				 struct drm_file *file);
> -struct virtio_gpu_object *virtio_gpu_alloc_object(struct drm_device *dev,
> -						  size_t size, bool kernel,
> -						  bool pinned);
> +struct virtio_gpu_object*
> +virtio_gpu_alloc_object(struct drm_device *dev,
> +			struct virtio_gpu_object_params *params);
>  int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
>  				struct drm_device *dev,
>  				struct drm_mode_create_dumb *args);
> @@ -345,7 +350,7 @@ void virtio_gpu_fence_event_process(struct virtio_gpu_device *vdev,
>  
>  /* virtio_gpu_object */
>  int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
> -			     unsigned long size, bool kernel, bool pinned,
> +			     struct virtio_gpu_object_params *params,
>  			     struct virtio_gpu_object **bo_ptr);
>  void virtio_gpu_object_kunmap(struct virtio_gpu_object *bo);
>  int virtio_gpu_object_kmap(struct virtio_gpu_object *bo);
> diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c
> index f065863939..384cd80bf3 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_gem.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_gem.c
> @@ -34,15 +34,15 @@ void virtio_gpu_gem_free_object(struct drm_gem_object *gem_obj)
>  		virtio_gpu_object_unref(&obj);
>  }
>  
> -struct virtio_gpu_object *virtio_gpu_alloc_object(struct drm_device *dev,
> -						  size_t size, bool kernel,
> -						  bool pinned)
> +struct virtio_gpu_object*
> +virtio_gpu_alloc_object(struct drm_device *dev,
> +			struct virtio_gpu_object_params *params)
>  {
>  	struct virtio_gpu_device *vgdev = dev->dev_private;
>  	struct virtio_gpu_object *obj;
>  	int ret;
>  
> -	ret = virtio_gpu_object_create(vgdev, size, kernel, pinned, &obj);
> +	ret = virtio_gpu_object_create(vgdev, params, &obj);
>  	if (ret)
>  		return ERR_PTR(ret);
>  
> @@ -51,7 +51,7 @@ struct virtio_gpu_object *virtio_gpu_alloc_object(struct drm_device *dev,
>  
>  int virtio_gpu_gem_create(struct drm_file *file,
>  			  struct drm_device *dev,
> -			  uint64_t size,
> +			  struct virtio_gpu_object_params *params,
>  			  struct drm_gem_object **obj_p,
>  			  uint32_t *handle_p)
>  {
> @@ -59,7 +59,7 @@ int virtio_gpu_gem_create(struct drm_file *file,
>  	int ret;
>  	u32 handle;
>  
> -	obj = virtio_gpu_alloc_object(dev, size, false, false);
> +	obj = virtio_gpu_alloc_object(dev, params);
>  	if (IS_ERR(obj))
>  		return PTR_ERR(obj);
>  
> @@ -85,6 +85,9 @@ int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
>  	struct virtio_gpu_device *vgdev = dev->dev_private;
>  	struct drm_gem_object *gobj;
>  	struct virtio_gpu_object *obj;
> +	struct virtio_gpu_object_params params = {
> +		.pinned = false,
> +	};

Nit: I think it's more readable to set all the fields
of the params struct in the same place...

>  	int ret;
>  	uint32_t pitch;
>  	uint32_t format;
> @@ -96,7 +99,8 @@ int virtio_gpu_mode_dumb_create(struct drm_file *file_priv,
>  	args->size = pitch * args->height;
>  	args->size = ALIGN(args->size, PAGE_SIZE);
>  
> -	ret = virtio_gpu_gem_create(file_priv, dev, args->size, &gobj,

... i.e. here.

> +	params.size = args->size;
> +	ret = virtio_gpu_gem_create(file_priv, dev, &params, &gobj,
>  				    &args->handle);
>  	if (ret)
>  		goto fail;
> diff --git a/drivers/gpu/drm/virtio/virtgpu_ioctl.c b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> index 14ce8188c0..65b4a54f10 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_ioctl.c
> @@ -279,12 +279,14 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
>  	struct virtio_gpu_object *qobj;
>  	struct drm_gem_object *obj;
>  	uint32_t handle = 0;
> -	uint32_t size;
>  	struct list_head validate_list;
>  	struct ttm_validate_buffer mainbuf;
>  	struct virtio_gpu_fence *fence = NULL;
>  	struct ww_acquire_ctx ticket;
>  	struct virtio_gpu_resource_create_3d rc_3d;
> +	struct virtio_gpu_object_params params = {
> +		.pinned = false,
> +	};
>  
>  	if (vgdev->has_virgl_3d == false) {
>  		if (rc->depth > 1)
> @@ -302,13 +304,13 @@ static int virtio_gpu_resource_create_ioctl(struct drm_device *dev, void *data,
>  	INIT_LIST_HEAD(&validate_list);
>  	memset(&mainbuf, 0, sizeof(struct ttm_validate_buffer));
>  
> -	size = rc->size;
> +	params.size = rc->size;
>  
>  	/* allocate a single page size object */
> -	if (size == 0)
> -		size = PAGE_SIZE;
> +	if (params.size == 0)
> +		params.size = PAGE_SIZE;
>  
> -	qobj = virtio_gpu_alloc_object(dev, size, false, false);
> +	qobj = virtio_gpu_alloc_object(dev, &params);
>  	if (IS_ERR(qobj))
>  		return PTR_ERR(qobj);
>  	obj = &qobj->gem_base;
> diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c
> index f39a183d59..62367e3f80 100644
> --- a/drivers/gpu/drm/virtio/virtgpu_object.c
> +++ b/drivers/gpu/drm/virtio/virtgpu_object.c
> @@ -79,21 +79,16 @@ static void virtio_gpu_init_ttm_placement(struct virtio_gpu_object *vgbo,
>  }
>  
>  int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
> -			     unsigned long size, bool kernel, bool pinned,
> +			     struct virtio_gpu_object_params *params,
>  			     struct virtio_gpu_object **bo_ptr)
>  {
>  	struct virtio_gpu_object *bo;
> -	enum ttm_bo_type type;
>  	size_t acc_size;
>  	int ret;
>  
> -	if (kernel)
> -		type = ttm_bo_type_kernel;
> -	else
> -		type = ttm_bo_type_device;
>  	*bo_ptr = NULL;
>  
> -	acc_size = ttm_bo_dma_acc_size(&vgdev->mman.bdev, size,
> +	acc_size = ttm_bo_dma_acc_size(&vgdev->mman.bdev, params->size,
>  				       sizeof(struct virtio_gpu_object));
>  
>  	bo = kzalloc(sizeof(struct virtio_gpu_object), GFP_KERNEL);
> @@ -104,19 +99,20 @@ int virtio_gpu_object_create(struct virtio_gpu_device *vgdev,
>  		kfree(bo);
>  		return ret;
>  	}
> -	size = roundup(size, PAGE_SIZE);
> -	ret = drm_gem_object_init(vgdev->ddev, &bo->gem_base, size);
> +	params->size = roundup(params->size, PAGE_SIZE);
> +	ret = drm_gem_object_init(vgdev->ddev, &bo->gem_base, params->size);
>  	if (ret != 0) {
>  		virtio_gpu_resource_id_put(vgdev, bo->hw_res_handle);
>  		kfree(bo);
>  		return ret;
>  	}
>  	bo->dumb = false;
> -	virtio_gpu_init_ttm_placement(bo, pinned);
> +	virtio_gpu_init_ttm_placement(bo, params->pinned);
>  
> -	ret = ttm_bo_init(&vgdev->mman.bdev, &bo->tbo, size, type,
> -			  &bo->placement, 0, !kernel, acc_size,
> -			  NULL, NULL, &virtio_gpu_ttm_bo_destroy);
> +	ret = ttm_bo_init(&vgdev->mman.bdev, &bo->tbo, params->size,
> +			  ttm_bo_type_device, &bo->placement, 0,
> +			  true, acc_size, NULL, NULL,
> +			  &virtio_gpu_ttm_bo_destroy);
>  	/* ttm_bo_init failure will call the destroy */
>  	if (ret != 0)
>  		return ret;