From: Maarten Lankhorst Date: Tue, 28 Feb 2017 14:28:47 +0000 (+0100) Subject: drm/i915: Move updating color management to before vblank evasion X-Git-Tag: Ubuntu-4.11.0-0.5~404^2~1^2~7 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=38230243ef316ac696956d75dc78a22e3aa789b9;p=mirror_ubuntu-artful-kernel.git drm/i915: Move updating color management to before vblank evasion 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 Fixes: 20a34e78f0d7 ("drm/i915: Update color management during vblank evasion.") Cc: stable@vger.kernel.org # v4.7+ Link: http://patchwork.freedesktop.org/patch/msgid/1488292128-14540-1-git-send-email-maarten.lankhorst@linux.intel.com Reviewed-by: Ville Syrjälä (cherry picked from commit 567f0792a6ad11c0c2620944b8eeb777359fb85a) Signed-off-by: Jani Nikula --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 01341670738f..9a8b6a13233d 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -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)