6.11-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mitul Golani <mitulkumar.ajitkumar.golani@xxxxxxxxx> commit b2013783c4458a1fe8b25c0b249d2e878bcf6999 upstream. Add new member to struct intel_dp to cache support of Adaptive Sync SDP capabilities and use it whenever required to avoid HW access to read capability during each atomic commit. -v2: - Squash both the patches Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani@xxxxxxxxx> Reviewed-by: Arun R Murthy <arun.r.murthy@xxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20240704082638.2302092-2-mitulkumar.ajitkumar.golani@xxxxxxxxx Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_alpm.c | 2 - drivers/gpu/drm/i915/display/intel_display_types.h | 1 drivers/gpu/drm/i915/display/intel_dp.c | 22 +++++++++++---------- drivers/gpu/drm/i915/display/intel_dp.h | 1 drivers/gpu/drm/i915/display/intel_vrr.c | 3 -- 5 files changed, 15 insertions(+), 14 deletions(-) --- a/drivers/gpu/drm/i915/display/intel_alpm.c +++ b/drivers/gpu/drm/i915/display/intel_alpm.c @@ -280,7 +280,7 @@ void intel_alpm_lobf_compute_config(stru if (DISPLAY_VER(i915) < 20) return; - if (!intel_dp_as_sdp_supported(intel_dp)) + if (!intel_dp->as_sdp_supported) return; if (crtc_state->has_psr) --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -1806,6 +1806,7 @@ struct intel_dp { /* connector directly attached - won't be use for modeset in mst world */ struct intel_connector *attached_connector; + bool as_sdp_supported; struct drm_dp_tunnel *tunnel; bool tunnel_suspended:1; --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -130,14 +130,6 @@ bool intel_dp_is_edp(struct intel_dp *in return dig_port->base.type == INTEL_OUTPUT_EDP; } -bool intel_dp_as_sdp_supported(struct intel_dp *intel_dp) -{ - struct drm_i915_private *i915 = dp_to_i915(intel_dp); - - return HAS_AS_SDP(i915) && - drm_dp_as_sdp_supported(&intel_dp->aux, intel_dp->dpcd); -} - static void intel_dp_unset_edid(struct intel_dp *intel_dp); /* Is link rate UHBR and thus 128b/132b? */ @@ -2635,8 +2627,7 @@ static void intel_dp_compute_as_sdp(stru const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode; - if (!crtc_state->vrr.enable || - !intel_dp_as_sdp_supported(intel_dp)) + if (!crtc_state->vrr.enable || intel_dp->as_sdp_supported) return; crtc_state->infoframes.enable |= intel_hdmi_infoframe_enable(DP_SDP_ADAPTIVE_SYNC); @@ -5921,6 +5912,15 @@ intel_dp_detect_dsc_caps(struct intel_dp connector); } +static void +intel_dp_detect_sdp_caps(struct intel_dp *intel_dp) +{ + struct drm_i915_private *i915 = dp_to_i915(intel_dp); + + intel_dp->as_sdp_supported = HAS_AS_SDP(i915) && + drm_dp_as_sdp_supported(&intel_dp->aux, intel_dp->dpcd); +} + static int intel_dp_detect(struct drm_connector *connector, struct drm_modeset_acquire_ctx *ctx, @@ -5991,6 +5991,8 @@ intel_dp_detect(struct drm_connector *co intel_dp_detect_dsc_caps(intel_dp, intel_connector); + intel_dp_detect_sdp_caps(intel_dp); + intel_dp_mst_configure(intel_dp); if (intel_dp->reset_link_params) { --- a/drivers/gpu/drm/i915/display/intel_dp.h +++ b/drivers/gpu/drm/i915/display/intel_dp.h @@ -85,7 +85,6 @@ void intel_dp_audio_compute_config(struc struct drm_connector_state *conn_state); bool intel_dp_has_hdmi_sink(struct intel_dp *intel_dp); bool intel_dp_is_edp(struct intel_dp *intel_dp); -bool intel_dp_as_sdp_supported(struct intel_dp *intel_dp); bool intel_dp_is_uhbr(const struct intel_crtc_state *crtc_state); bool intel_dp_has_dsc(const struct intel_connector *connector); int intel_dp_link_symbol_size(int rate); --- a/drivers/gpu/drm/i915/display/intel_vrr.c +++ b/drivers/gpu/drm/i915/display/intel_vrr.c @@ -233,8 +233,7 @@ intel_vrr_compute_config(struct intel_cr crtc_state->mode_flags |= I915_MODE_FLAG_VRR; } - if (intel_dp_as_sdp_supported(intel_dp) && - crtc_state->vrr.enable) { + if (intel_dp->as_sdp_supported && crtc_state->vrr.enable) { crtc_state->vrr.vsync_start = (crtc_state->hw.adjusted_mode.crtc_vtotal - crtc_state->hw.adjusted_mode.vsync_start);
