________________________________________ From: Navare, Manasi D Sent: Friday, October 05, 2018 4:23 PM To: intel-gfx@xxxxxxxxxxxxxxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx Cc: Navare, Manasi D; Jani Nikula; Ville Syrjala; Srivatsa, Anusha Subject: [PATCH v5 28/28] drm/i915/dsc: Force DSC enable if requested by IGT/userspace Currently the driver will only enable DSC if a certain mode does not fit the available link BW. However IGT/userspace can force DSC enable through dsc support debugfs node to test the DSC functionality if supported by the panel. Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx> Cc: Ville Syrjala <ville.syrjala@xxxxxxxxxxxxxxx> Cc: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx> Signed-off-by: Manasi Navare <manasi.d.navare@xxxxxxxxx> Reviewed-by: Anusha Srivatsa <anusha.srivatsa@xxxxxxxxx> --- drivers/gpu/drm/i915/intel_dp.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 52dca5901aa1..987d3b2eb8d3 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -2158,12 +2158,13 @@ intel_dp_compute_link_config(struct intel_encoder *encoder, &limits); /* enable compression if the mode doesn't fit available BW */ - if (!ret) { - DRM_DEBUG_KMS("DP required Link rate %i does not fit available %i\n", - intel_dp_link_required(adjusted_mode->crtc_clock, - pipe_config->pipe_bpp), - intel_dp_max_data_rate(pipe_config->port_clock, - pipe_config->lane_count)); + if (!ret || intel_dp->force_dsc_en) { + if (!ret) + DRM_DEBUG_KMS("DP required Link rate %i does not fit available %i\n", + intel_dp_link_required(adjusted_mode->crtc_clock, + pipe_config->pipe_bpp), + intel_dp_max_data_rate(pipe_config->port_clock, + pipe_config->lane_count)); if (!intel_dp_dsc_compute_config(intel_dp, pipe_config, &limits)) -- 2.18.0 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel