From: Anusha Srivatsa anusha.srivatsa@intel.com
Set compress BPP in kernel while connector DP or eDP
Cc: Vandita Kulkarni vandita.kulkarni@intel.com Cc: Navare Manasi D manasi.d.navare@intel.com Signed-off-by: Anusha Srivatsa anusha.srivatsa@intel.com Signed-off-by: Patnana Venkata Sai venkata.sai.patnana@intel.com Signed-off-by: Matt Roper matthew.d.roper@intel.com --- drivers/gpu/drm/i915/display/intel_dp.c | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 5b52beaddada..57aadee69d8b 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -1241,9 +1241,15 @@ static int intel_dp_dsc_compute_config(struct intel_dp *intel_dp, pipe_config->lane_count = limits->max_lane_count;
if (intel_dp_is_edp(intel_dp)) { - pipe_config->dsc.compressed_bpp = - min_t(u16, drm_edp_dsc_sink_output_bpp(intel_dp->dsc_dpcd) >> 4, - pipe_config->pipe_bpp); + if (intel_dp->force_dsc_bpp) { + drm_dbg_kms(&dev_priv->drm, + "DSC BPC forced to %d", intel_dp->force_dsc_bpp); + pipe_config->dsc.compressed_bpp = intel_dp->force_dsc_bpp; + } else { + pipe_config->dsc.compressed_bpp = + min_t(u16, drm_edp_dsc_sink_output_bpp(intel_dp->dsc_dpcd) >> 4, + pipe_config->pipe_bpp); + } pipe_config->dsc.slice_count = drm_dp_dsc_sink_max_slice_count(intel_dp->dsc_dpcd, true); @@ -1269,9 +1275,15 @@ static int intel_dp_dsc_compute_config(struct intel_dp *intel_dp, "Compressed BPP/Slice Count not supported\n"); return -EINVAL; } - pipe_config->dsc.compressed_bpp = min_t(u16, + if (intel_dp->force_dsc_bpp) { + drm_dbg_kms(&dev_priv->drm, + "DSC BPC forced to %d\n", intel_dp->force_dsc_bpp); + pipe_config->dsc.compressed_bpp = intel_dp->force_dsc_bpp; + } else { + pipe_config->dsc.compressed_bpp = min_t(u16, dsc_max_output_bpp >> 4, pipe_config->pipe_bpp); + } pipe_config->dsc.slice_count = dsc_dp_slice_count; } /* @@ -1374,7 +1386,8 @@ intel_dp_compute_link_config(struct intel_encoder *encoder, * Pipe joiner needs compression upto display12 due to BW limitation. DG2 * onwards pipe joiner can be enabled without compression. */ - drm_dbg_kms(&i915->drm, "Force DSC en = %d\n", intel_dp->force_dsc_en); + drm_dbg_kms(&i915->drm, "Force DSC en = %d\n Force DSC BPP = %d\n", + intel_dp->force_dsc_en, intel_dp->force_dsc_bpp); if (ret || intel_dp->force_dsc_en || (DISPLAY_VER(i915) < 13 && pipe_config->bigjoiner)) { ret = intel_dp_dsc_compute_config(intel_dp, pipe_config,