drm/i915: Do not run most checks when there's no modeset.
All the checks in intel_modeset_checks are only useful when a modeset
occurs, because there is nothing to update otherwise.
Same for power/cdclk changes, if there is no modeset they are noops.
Unfortunately intel_modeset_pipe_config still gets called without
modeset, because atomic hw readout isn't done yet.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Tested-by(IVB): Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 118c8ac..57bc490 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -13169,18 +13169,18 @@
struct drm_crtc *crtc;
struct drm_crtc_state *crtc_state;
int ret, i;
+ bool any_ms = false;
ret = drm_atomic_helper_check_modeset(state->dev, state);
if (ret)
return ret;
for_each_crtc_in_state(state, crtc, crtc_state, i) {
- if (!crtc_state->enable &&
- WARN_ON(crtc_state->active))
- crtc_state->active = false;
-
- if (!crtc_state->enable)
+ if (!crtc_state->enable) {
+ if (needs_modeset(crtc_state))
+ any_ms = true;
continue;
+ }
if (!needs_modeset(crtc_state)) {
ret = drm_atomic_add_affected_connectors(state, crtc);
@@ -13193,14 +13193,20 @@
if (ret)
return ret;
+ if (needs_modeset(crtc_state))
+ any_ms = true;
+
intel_dump_pipe_config(to_intel_crtc(crtc),
to_intel_crtc_state(crtc_state),
"[modeset]");
}
- ret = intel_modeset_checks(state);
- if (ret)
- return ret;
+ if (any_ms) {
+ ret = intel_modeset_checks(state);
+
+ if (ret)
+ return ret;
+ }
return drm_atomic_helper_check_planes(state->dev, state);
}
@@ -13213,6 +13219,7 @@
struct drm_crtc_state *crtc_state;
int ret = 0;
int i;
+ bool any_ms = false;
ret = drm_atomic_helper_prepare_planes(dev, state);
if (ret)
@@ -13221,7 +13228,11 @@
drm_atomic_helper_swap_state(dev, state);
for_each_crtc_in_state(state, crtc, crtc_state, i) {
- if (!needs_modeset(crtc->state) || !crtc_state->active)
+ if (!needs_modeset(crtc->state))
+ continue;
+
+ any_ms = true;
+ if (!crtc_state->active)
continue;
intel_crtc_disable_planes(crtc);
@@ -13234,8 +13245,8 @@
/* The state has been swaped above, so state actually contains the
* old state now. */
-
- modeset_update_crtc_power_domains(state);
+ if (any_ms)
+ 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) {