diff mbox series

[19/26] drm/i915: use new cursor in intel_prepare_plane_fb v2

Message ID 20210917123513.1106-20-christian.koenig@amd.com (mailing list archive)
State New, archived
Headers show
Series [01/26] dma-buf: add dma_resv_for_each_fence_unlocked v2 | expand

Commit Message

Christian König Sept. 17, 2021, 12:35 p.m. UTC 
Simplifying the code a bit.

v2: add rcu_read_lock()/unlock()

Signed-off-by: Christian König <christian.koenig@amd.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 134a6acbd8fb..51e3df0de1ce 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -11290,6 +11290,7 @@  intel_prepare_plane_fb(struct drm_plane *_plane,
 	i915_gem_object_flush_frontbuffer(obj, ORIGIN_DIRTYFB);
 
 	if (!new_plane_state->uapi.fence) { /* implicit fencing */
+		struct dma_resv_iter cursor;
 		struct dma_fence *fence;
 
 		ret = i915_sw_fence_await_reservation(&state->commit_ready,
@@ -11300,12 +11301,16 @@  intel_prepare_plane_fb(struct drm_plane *_plane,
 		if (ret < 0)
 			goto unpin_fb;
 
-		fence = dma_resv_get_excl_unlocked(obj->base.resv);
-		if (fence) {
+		rcu_read_lock();
+		dma_resv_iter_begin(&cursor, obj->base.resv, false);
+		dma_resv_for_each_fence_unlocked(&cursor, fence) {
+			rcu_read_unlock();
 			add_rps_boost_after_vblank(new_plane_state->hw.crtc,
 						   fence);
-			dma_fence_put(fence);
+			rcu_read_lock();
 		}
+		dma_resv_iter_end(&cursor);
+		rcu_read_unlock();
 	} else {
 		add_rps_boost_after_vblank(new_plane_state->hw.crtc,
 					   new_plane_state->uapi.fence);