[Intel-gfx] [PATCH 1/6] drm/i915: Move psr unlock out from the pipe update critical section

Ville Syrjala ville.syrjala at linux.intel.com
Mon Aug 28 05:41:35 UTC 2023


From: Ville Syrjälä <ville.syrjala at linux.intel.com>

Do the PSR unlock after the vblank evade critcal section is
fully over, not before.

Cc: Manasi Navare <navaremanasi at chromium.org>
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/intel_crtc.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_crtc.c b/drivers/gpu/drm/i915/display/intel_crtc.c
index 182c6dd64f47..5caa928e5ce9 100644
--- a/drivers/gpu/drm/i915/display/intel_crtc.c
+++ b/drivers/gpu/drm/i915/display/intel_crtc.c
@@ -646,10 +646,8 @@ void intel_pipe_update_end(struct intel_crtc_state *new_crtc_state)
 	ktime_t end_vbl_time = ktime_get();
 	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
 
-	intel_psr_unlock(new_crtc_state);
-
 	if (new_crtc_state->do_async_flip)
-		return;
+		goto out;
 
 	trace_intel_pipe_update_end(crtc, end_vbl_count, scanline_end);
 
@@ -709,7 +707,7 @@ void intel_pipe_update_end(struct intel_crtc_state *new_crtc_state)
 	local_irq_enable();
 
 	if (intel_vgpu_active(dev_priv))
-		return;
+		goto out;
 
 	if (crtc->debug.start_vbl_count &&
 	    crtc->debug.start_vbl_count != end_vbl_count) {
@@ -724,4 +722,7 @@ void intel_pipe_update_end(struct intel_crtc_state *new_crtc_state)
 	}
 
 	dbg_vblank_evade(crtc, end_vbl_time);
+
+out:
+	intel_psr_unlock(new_crtc_state);
 }
-- 
2.41.0



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