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drm/i915: Move updating color management to before vblank evasion

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This cannot be done reliably during vblank evasasion
since the color management registers are not double buffered.

The original commit that moved it always during vblank evasion was
wrong, so revert it to before vblank evasion again.

Signed-off-by: Maarten Lankhorst <[email protected]>
Fixes: 20a34e78f0 ("drm/i915: Update color management during vblank evasion.")
Cc: [email protected] # v4.7+
Link: http://patchwork.freedesktop.org/patch/msgid/1488292128-14540-1-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Ville Syrjälä <[email protected]>
(cherry picked from commit 567f0792a6)
Signed-off-by: Jani Nikula <[email protected]>
This commit is contained in:
Maarten Lankhorst 2017-02-28 15:28:47 +01:00 • committed by Jani Nikula
commit 38230243ef
1 changed files with 7 additions and 5 deletions
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12
drivers/gpu/drm/i915/intel_display.c
View file

@ -14946,17 +14946,19 @@ static void intel_begin_crtc_commit(struct drm_crtc *crtc,
to_intel_atomic_state(old_crtc_state->state);
bool modeset = needs_modeset(crtc->state);
if (!modeset &&
(intel_cstate->base.color_mgmt_changed ||
intel_cstate->update_pipe)) {
intel_color_set_csc(crtc->state);
intel_color_load_luts(crtc->state);
}
/* Perform vblank evasion around commit operation */
intel_pipe_update_start(intel_crtc);
if (modeset)
goto out;
if (crtc->state->color_mgmt_changed || to_intel_crtc_state(crtc->state)->update_pipe) {
intel_color_set_csc(crtc->state);
intel_color_load_luts(crtc->state);
}
if (intel_cstate->update_pipe)
intel_update_pipe_config(intel_crtc, old_intel_cstate);
else if (INTEL_GEN(dev_priv) >= 9)