From 4740b0f2b80cc7810bf5fa871189c318b08dbc46 Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date: Wed, 5 Aug 2015 12:37:10 +0200
Subject: [PATCH] drm/i915: Only update mode related state if a modeset
happened.
The rest will be a noop anyway, since without modeset there will be
no updated dplls and no modeset state to update.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
drivers/gpu/drm/i915/intel_display.c | 30 +++++++---------------------
1 file changed, 7 insertions(+), 23 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 06be517c247e5..dc4812a493f55 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12183,33 +12183,15 @@ fail:
return ret;
}
-static bool intel_crtc_in_use(struct drm_crtc *crtc)
-{
- struct drm_encoder *encoder;
- struct drm_device *dev = crtc->dev;
-
- list_for_each_entry(encoder, &dev->mode_config.encoder_list, head)
- if (encoder->crtc == crtc)
- return true;
-
- return false;
-}
-
static void
-intel_modeset_update_state(struct drm_atomic_state *state)
+intel_modeset_update_crtc_state(struct drm_atomic_state *state)
{
struct drm_crtc *crtc;
struct drm_crtc_state *crtc_state;
int i;
- intel_shared_dpll_commit(state);
-
- drm_atomic_helper_update_legacy_modeset_state(state->dev, state);
-
/* Double check state. */
for_each_crtc_in_state(state, crtc, crtc_state, i) {
- WARN_ON(crtc->state->enable != intel_crtc_in_use(crtc));
-
to_intel_crtc(crtc)->config = to_intel_crtc_state(crtc->state);
/* Update hwmode for vblank functions */
@@ -13112,12 +13094,14 @@ static int intel_atomic_commit(struct drm_device *dev,
/* Only after disabling all output pipelines that will be changed can we
* update the the output configuration. */
- intel_modeset_update_state(state);
+ intel_modeset_update_crtc_state(state);
- /* The state has been swaped above, so state actually contains the
- * old state now. */
- if (any_ms)
+ if (any_ms) {
+ intel_shared_dpll_commit(state);
+
+ drm_atomic_helper_update_legacy_modeset_state(state->dev, state);
modeset_update_crtc_power_domains(state);
+ }
/* Now enable the clocks, plane, pipe, and connectors that we set up. */
for_each_crtc_in_state(state, crtc, crtc_state, i) {
--
2.30.2