diff mbox series

[08/65] drm/amdgpu: add dma-fence annotations to atomic commit path

Message ID 20201023122216.2373294-8-daniel.vetter@ffwll.ch (mailing list archive)
State New, archived
Headers show
Series [1/3] drm/atomic-helpers: remove legacy_cursor_update hacks | expand

Commit Message

Daniel Vetter Oct. 23, 2020, 12:21 p.m. UTC 
I need a canary in a ttm-based atomic driver to make sure the
dma_fence_begin/end_signalling annotations actually work.

Cc: linux-media@vger.kernel.org
Cc: linaro-mm-sig@lists.linaro.org
Cc: linux-rdma@vger.kernel.org
Cc: amd-gfx@lists.freedesktop.org
Cc: intel-gfx@lists.freedesktop.org
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Christian König <christian.koenig@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index bb1bc7f5d149..b05fecf06f25 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -57,6 +57,7 @@ 
 
 #include "ivsrcid/ivsrcid_vislands30.h"
 
+#include <linux/module.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/version.h>
@@ -7492,6 +7493,9 @@  static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
 	struct dm_crtc_state *dm_old_crtc_state, *dm_new_crtc_state;
 	int crtc_disable_count = 0;
 	bool mode_set_reset_required = false;
+	bool fence_cookie;
+
+	fence_cookie = dma_fence_begin_signalling();
 
 	drm_atomic_helper_update_legacy_modeset_state(dev, state);
 	drm_atomic_helper_calc_timestamping_constants(state);
@@ -7816,6 +7820,8 @@  static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
 	/* Signal HW programming completion */
 	drm_atomic_helper_commit_hw_done(state);
 
+	dma_fence_end_signalling(fence_cookie);
+
 	if (wait_for_vblank)
 		drm_atomic_helper_wait_for_flip_done(dev, state);