From 529d64d22e00f20642b875e4ddb717ca480ded08 Mon Sep 17 00:00:00 2001
From: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Date: Mon, 3 Feb 2020 01:06:27 +0200
Subject: drm/i915: Update dbuf slices only with full modeset
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Git-commit: 85487cf4a1670bc2ba95238aaf9f8bf28dc9e7ac
Patch-mainline: v5.7-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
During full modeset, global state(i.e dev_priv) is protected
by locking the crtcs in state, otherwise global state is not
serialized. Also if it is not a full modeset, we anyway
don't need to change DBuf slice configuration as Pipe configuration
doesn't change.
Reviewed-by: Ville Syrj채l채 <ville.syrjala@linux.intel.com>
Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Ville Syrj채l채 <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200202230630.8975-4-stanislav.lisovskiy@intel.com
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/display/intel_display.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index fb4e461b4328..16b64105ce1a 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -15720,7 +15720,8 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state)
intel_encoders_update_prepare(state);
/* Enable all new slices, we might need */
- icl_dbuf_slice_pre_update(state);
+ if (state->modeset)
+ icl_dbuf_slice_pre_update(state);
/* Now enable the clocks, plane, pipe, and connectors that we set up. */
dev_priv->display.commit_modeset_enables(state);
@@ -15776,7 +15777,8 @@ static void intel_atomic_commit_tail(struct intel_atomic_state *state)
}
/* Disable all slices, we don't need */
- icl_dbuf_slice_post_update(state);
+ if (state->modeset)
+ icl_dbuf_slice_post_update(state);
for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) {
intel_post_plane_update(state, crtc);
--
2.28.0