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Commit 6070e9fa authored by Jakob Bornecrantz's avatar Jakob Bornecrantz Committed by Dave Airlie
Browse files

vmwgfx: Some comments and BUG_ON 



Signed-off-by: default avatarJakob Bornecrantz <jakob@vmware.com>
Signed-off-by: default avatarThomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 5f898d99

drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c

+5 −0
Original line number Diff line number Diff line
@@ -681,6 +681,9 @@ static int vmw_resize_cmd_bounce(struct vmw_sw_context *sw_context, 
 * Creates a fence object and submits a command stream marker.

 * If this fails for some reason, We sync the fifo and return NULL.

 * It is then safe to fence buffers with a NULL pointer.

 *

 * If @p_handle is not NULL @file_priv must also not be NULL. Creates

 * a userspace handle if @p_handle is not NULL, otherwise not.

 */



int vmw_execbuf_fence_commands(struct drm_file *file_priv,
@@ -692,6 +695,8 @@ int vmw_execbuf_fence_commands(struct drm_file *file_priv, 
	int ret;

	bool synced = false;



	/* p_handle implies file_priv. */

	BUG_ON(p_handle != NULL && file_priv == NULL);



	ret = vmw_fifo_send_fence(dev_priv, &sequence);

	if (unlikely(ret != 0)) {