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Commit 2b507893 authored by Ben Skeggs's avatar Ben Skeggs
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drm/nouveau/kms/nv50: request vblank events for commits that send completion events 



This somehow fixes an issue where sync-to-vblank longer works correctly
after resume from suspend.

From a HW perspective, we don't need the IRQs turned on to be able to
detect flip completion, so it's assumed that this is required for the
voodoo in the core DRM vblank core.

Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 24bf7ae3

drivers/gpu/drm/nouveau/nv50_display.c

+6 −0
Original line number Diff line number Diff line
@@ -4052,6 +4052,11 @@ nv50_disp_atomic_commit_tail(struct drm_atomic_state *state) 
		}

	}



	for_each_crtc_in_state(state, crtc, crtc_state, i) {

		if (crtc->state->event)

			drm_crtc_vblank_get(crtc);

	}



	/* Update plane(s). */

	for_each_plane_in_state(state, plane, plane_state, i) {

		struct nv50_wndw_atom *asyw = nv50_wndw_atom(plane->state);
@@ -4101,6 +4106,7 @@ nv50_disp_atomic_commit_tail(struct drm_atomic_state *state) 
			drm_crtc_send_vblank_event(crtc, crtc->state->event);

			spin_unlock_irqrestore(&crtc->dev->event_lock, flags);

			crtc->state->event = NULL;

			drm_crtc_vblank_put(crtc);

		}

	}