From: Suraj Kandpal Date: Mon, 28 Aug 2023 05:42:55 +0000 (+0530) Subject: drm/i915/vdsc: Add a check for dsc split cases X-Git-Tag: v6.7-rc1~145^2~15^2~130 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=611977c3e4048a7cda42a8e87dec1672f15f763b;p=thirdparty%2Fkernel%2Flinux.git drm/i915/vdsc: Add a check for dsc split cases In intel_vdsc_get_config we only read the primary dsc engine register and not take into account if the other dsc engine is in use and if both registers have the same value or not this patche fixes that by adding a check. --v3 -Remove superfluos new line [Jani] -Fix register naming [Jani] --v5 -pps_temp0/pps_temp1 can be assigned where they are used [Ankit] Signed-off-by: Suraj Kandpal Reviewed-by: Ankit Nautiyal Signed-off-by: Animesh Manna Link: https://patchwork.freedesktop.org/patch/msgid/20230828054300.560559-3-suraj.kandpal@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c b/drivers/gpu/drm/i915/display/intel_vdsc.c index e4c395b4dc46a..94af579b63d30 100644 --- a/drivers/gpu/drm/i915/display/intel_vdsc.c +++ b/drivers/gpu/drm/i915/display/intel_vdsc.c @@ -1002,7 +1002,7 @@ void intel_dsc_get_config(struct intel_crtc_state *crtc_state) enum pipe pipe = crtc->pipe; enum intel_display_power_domain power_domain; intel_wakeref_t wakeref; - u32 dss_ctl1, dss_ctl2, pps0 = 0, pps1 = 0; + u32 dss_ctl1, dss_ctl2, pps0 = 0, pps1 = 0, pps_temp0, pps_temp1; if (!intel_dsc_source_support(crtc_state)) return; @@ -1028,11 +1028,23 @@ void intel_dsc_get_config(struct intel_crtc_state *crtc_state) /* PPS0 & PPS1 */ if (!is_pipe_dsc(crtc, cpu_transcoder)) { pps1 = intel_de_read(dev_priv, DSCA_PICTURE_PARAMETER_SET_1); + if (crtc_state->dsc.dsc_split) { + pps_temp1 = intel_de_read(dev_priv, DSCC_PICTURE_PARAMETER_SET_1); + drm_WARN_ON(&dev_priv->drm, pps1 != pps_temp1); + } } else { pps0 = intel_de_read(dev_priv, ICL_DSC0_PICTURE_PARAMETER_SET_0(pipe)); pps1 = intel_de_read(dev_priv, ICL_DSC0_PICTURE_PARAMETER_SET_1(pipe)); + if (crtc_state->dsc.dsc_split) { + pps_temp0 = intel_de_read(dev_priv, + ICL_DSC1_PICTURE_PARAMETER_SET_0(pipe)); + pps_temp1 = intel_de_read(dev_priv, + ICL_DSC1_PICTURE_PARAMETER_SET_1(pipe)); + drm_WARN_ON(&dev_priv->drm, pps0 != pps_temp0); + drm_WARN_ON(&dev_priv->drm, pps1 != pps_temp1); + } } vdsc_cfg->bits_per_pixel = pps1;