linux-kernel - [PATCH] drm/i915/skl: Set dirty_pipes to active

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Date:   Mon, 22 Aug 2016 12:52:32 -0400
From:   Lyude <cpaul@...hat.com>
To:     Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        intel-gfx@...ts.freedesktop.org
Cc:     Lyude <cpaul@...hat.com>, Daniel Vetter <daniel.vetter@...el.com>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        David Airlie <airlied@...ux.ie>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: [PATCH] drm/i915/skl: Set dirty_pipes to active_crtcs, not ~0

Using intel_state->active_crtcs allows us to more easily check whether
or not we've updated all of the CRTCs that needed ddb updates since we
can just do:

	mask_of_crtcs_we_updated == intel_state->wm_results.dirty_pipes

Signed-off-by: Lyude <cpaul@...hat.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 2f4438d..f4fe942 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4117,7 +4117,7 @@ skl_compute_ddb(struct drm_atomic_state *state)
 	 */
 	if (intel_state->active_pipe_changes) {
 		realloc_pipes = ~0;
-		intel_state->wm_results.dirty_pipes = ~0;
+		intel_state->wm_results.dirty_pipes = intel_state->active_crtcs;
 	}
 
 	for_each_intel_crtc_mask(dev, intel_crtc, realloc_pipes) {
-- 
2.7.4