On Tue, May 03, 2016 at 11:01:32AM -0400, Lyude wrote:
> Right now MST audio is causing too many kernel panics to really keep
> around in the kernel. On top of that, even after fixing said panics it's
> still basically non-functional (at least on all the setups I've tested
> it on). Revert until we have a proper solution for this.
>
> This reverts commit 3d52ccf52f2c51f613e42e65be0f06e4e6788093.
>
> Signed-off-by: Lyude <cpaul@xxxxxxxxxx>
Applied (with appropriate Fixes: and cc: stable tags), thanks.
-Daniel
> ---
> drivers/gpu/drm/i915/i915_debugfs.c | 16 ----------------
> drivers/gpu/drm/i915/intel_audio.c | 9 +++------
> drivers/gpu/drm/i915/intel_ddi.c | 24 +++++-------------------
> drivers/gpu/drm/i915/intel_dp_mst.c | 22 ----------------------
> drivers/gpu/drm/i915/intel_drv.h | 2 --
> 5 files changed, 8 insertions(+), 65 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
> index a0f1bd7..e3f4c72 100644
> --- a/drivers/gpu/drm/i915/i915_debugfs.c
> +++ b/drivers/gpu/drm/i915/i915_debugfs.c
> @@ -2872,20 +2872,6 @@ static void intel_dp_info(struct seq_file *m,
> intel_panel_info(m, &intel_connector->panel);
> }
>
> -static void intel_dp_mst_info(struct seq_file *m,
> - struct intel_connector *intel_connector)
> -{
> - struct intel_encoder *intel_encoder = intel_connector->encoder;
> - struct intel_dp_mst_encoder *intel_mst =
> - enc_to_mst(&intel_encoder->base);
> - struct intel_digital_port *intel_dig_port = intel_mst->primary;
> - struct intel_dp *intel_dp = &intel_dig_port->dp;
> - bool has_audio = drm_dp_mst_port_has_audio(&intel_dp->mst_mgr,
> - intel_connector->port);
> -
> - seq_printf(m, "\taudio support: %s\n", yesno(has_audio));
> -}
> -
> static void intel_hdmi_info(struct seq_file *m,
> struct intel_connector *intel_connector)
> {
> @@ -2929,8 +2915,6 @@ static void intel_connector_info(struct seq_file *m,
> intel_hdmi_info(m, intel_connector);
> else if (intel_encoder->type == INTEL_OUTPUT_LVDS)
> intel_lvds_info(m, intel_connector);
> - else if (intel_encoder->type == INTEL_OUTPUT_DP_MST)
> - intel_dp_mst_info(m, intel_connector);
> }
>
> seq_printf(m, "\tmodes:\n");
> diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
> index 30f9214..7d281b4 100644
> --- a/drivers/gpu/drm/i915/intel_audio.c
> +++ b/drivers/gpu/drm/i915/intel_audio.c
> @@ -262,8 +262,7 @@ static void hsw_audio_codec_disable(struct intel_encoder *encoder)
> tmp |= AUD_CONFIG_N_PROG_ENABLE;
> tmp &= ~AUD_CONFIG_UPPER_N_MASK;
> tmp &= ~AUD_CONFIG_LOWER_N_MASK;
> - if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DISPLAYPORT) ||
> - intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DP_MST))
> + if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DISPLAYPORT))
> tmp |= AUD_CONFIG_N_VALUE_INDEX;
> I915_WRITE(HSW_AUD_CFG(pipe), tmp);
>
> @@ -476,8 +475,7 @@ static void ilk_audio_codec_enable(struct drm_connector *connector,
> tmp &= ~AUD_CONFIG_N_VALUE_INDEX;
> tmp &= ~AUD_CONFIG_N_PROG_ENABLE;
> tmp &= ~AUD_CONFIG_PIXEL_CLOCK_HDMI_MASK;
> - if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DISPLAYPORT) ||
> - intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DP_MST))
> + if (intel_pipe_has_type(intel_crtc, INTEL_OUTPUT_DISPLAYPORT))
> tmp |= AUD_CONFIG_N_VALUE_INDEX;
> else
> tmp |= audio_config_hdmi_pixel_clock(adjusted_mode);
> @@ -515,8 +513,7 @@ void intel_audio_codec_enable(struct intel_encoder *intel_encoder)
>
> /* ELD Conn_Type */
> connector->eld[5] &= ~(3 << 2);
> - if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT) ||
> - intel_pipe_has_type(crtc, INTEL_OUTPUT_DP_MST))
> + if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT))
> connector->eld[5] |= (1 << 2);
>
> connector->eld[6] = drm_av_sync_delay(connector, adjusted_mode) / 2;
> diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
> index 62de9f4..1c3487a 100644
> --- a/drivers/gpu/drm/i915/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/intel_ddi.c
> @@ -3098,23 +3098,6 @@ void intel_ddi_fdi_disable(struct drm_crtc *crtc)
> I915_WRITE(FDI_RX_CTL(PIPE_A), val);
> }
>
> -bool intel_ddi_is_audio_enabled(struct drm_i915_private *dev_priv,
> - struct intel_crtc *intel_crtc)
> -{
> - u32 temp;
> -
> - if (intel_display_power_get_if_enabled(dev_priv, POWER_DOMAIN_AUDIO)) {
> - temp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD);
> -
> - intel_display_power_put(dev_priv, POWER_DOMAIN_AUDIO);
> -
> - if (temp & AUDIO_OUTPUT_ENABLE(intel_crtc->pipe))
> - return true;
> - }
> -
> - return false;
> -}
> -
> void intel_ddi_get_config(struct intel_encoder *encoder,
> struct intel_crtc_state *pipe_config)
> {
> @@ -3175,8 +3158,11 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
> break;
> }
>
> - pipe_config->has_audio =
> - intel_ddi_is_audio_enabled(dev_priv, intel_crtc);
> + if (intel_display_power_is_enabled(dev_priv, POWER_DOMAIN_AUDIO)) {
> + temp = I915_READ(HSW_AUD_PIN_ELD_CP_VLD);
> + if (temp & AUDIO_OUTPUT_ENABLE(intel_crtc->pipe))
> + pipe_config->has_audio = true;
> + }
>
> if (encoder->type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp_bpp &&
> pipe_config->pipe_bpp > dev_priv->vbt.edp_bpp) {
> diff --git a/drivers/gpu/drm/i915/intel_dp_mst.c b/drivers/gpu/drm/i915/intel_dp_mst.c
> index 937e772..2c99972 100644
> --- a/drivers/gpu/drm/i915/intel_dp_mst.c
> +++ b/drivers/gpu/drm/i915/intel_dp_mst.c
> @@ -78,8 +78,6 @@ static bool intel_dp_mst_compute_config(struct intel_encoder *encoder,
> return false;
> }
>
> - if (drm_dp_mst_port_has_audio(&intel_dp->mst_mgr, found->port))
> - pipe_config->has_audio = true;
> mst_pbn = drm_dp_calc_pbn_mode(adjusted_mode->crtc_clock, bpp);
>
> pipe_config->pbn = mst_pbn;
> @@ -104,11 +102,6 @@ static void intel_mst_disable_dp(struct intel_encoder *encoder)
> struct intel_dp_mst_encoder *intel_mst = enc_to_mst(&encoder->base);
> struct intel_digital_port *intel_dig_port = intel_mst->primary;
> struct intel_dp *intel_dp = &intel_dig_port->dp;
> - struct drm_device *dev = encoder->base.dev;
> - struct drm_i915_private *dev_priv = dev->dev_private;
> - struct drm_crtc *crtc = encoder->base.crtc;
> - struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
> -
> int ret;
>
> DRM_DEBUG_KMS("%d\n", intel_dp->active_mst_links);
> @@ -119,10 +112,6 @@ static void intel_mst_disable_dp(struct intel_encoder *encoder)
> if (ret) {
> DRM_ERROR("failed to update payload %d\n", ret);
> }
> - if (intel_crtc->config->has_audio) {
> - intel_audio_codec_disable(encoder);
> - intel_display_power_put(dev_priv, POWER_DOMAIN_AUDIO);
> - }
> }
>
> static void intel_mst_post_disable_dp(struct intel_encoder *encoder)
> @@ -221,7 +210,6 @@ static void intel_mst_enable_dp(struct intel_encoder *encoder)
> struct intel_dp *intel_dp = &intel_dig_port->dp;
> struct drm_device *dev = intel_dig_port->base.base.dev;
> struct drm_i915_private *dev_priv = dev->dev_private;
> - struct intel_crtc *crtc = to_intel_crtc(encoder->base.crtc);
> enum port port = intel_dig_port->port;
> int ret;
>
> @@ -234,13 +222,6 @@ static void intel_mst_enable_dp(struct intel_encoder *encoder)
> ret = drm_dp_check_act_status(&intel_dp->mst_mgr);
>
> ret = drm_dp_update_payload_part2(&intel_dp->mst_mgr);
> -
> - if (crtc->config->has_audio) {
> - DRM_DEBUG_DRIVER("Enabling DP audio on pipe %c\n",
> - pipe_name(crtc->pipe));
> - intel_display_power_get(dev_priv, POWER_DOMAIN_AUDIO);
> - intel_audio_codec_enable(encoder);
> - }
> }
>
> static bool intel_dp_mst_enc_get_hw_state(struct intel_encoder *encoder,
> @@ -266,9 +247,6 @@ static void intel_dp_mst_enc_get_config(struct intel_encoder *encoder,
>
> pipe_config->has_dp_encoder = true;
>
> - pipe_config->has_audio =
> - intel_ddi_is_audio_enabled(dev_priv, crtc);
> -
> temp = I915_READ(TRANS_DDI_FUNC_CTL(cpu_transcoder));
> if (temp & TRANS_DDI_PHSYNC)
> flags |= DRM_MODE_FLAG_PHSYNC;
> diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
> index 4c027d6..2402075 100644
> --- a/drivers/gpu/drm/i915/intel_drv.h
> +++ b/drivers/gpu/drm/i915/intel_drv.h
> @@ -1019,8 +1019,6 @@ void intel_ddi_set_pipe_settings(struct drm_crtc *crtc);
> void intel_ddi_prepare_link_retrain(struct intel_dp *intel_dp);
> bool intel_ddi_connector_get_hw_state(struct intel_connector *intel_connector);
> void intel_ddi_fdi_disable(struct drm_crtc *crtc);
> -bool intel_ddi_is_audio_enabled(struct drm_i915_private *dev_priv,
> - struct intel_crtc *intel_crtc);
> void intel_ddi_get_config(struct intel_encoder *encoder,
> struct intel_crtc_state *pipe_config);
> struct intel_encoder *
> --
> 2.5.5
>
> _______________________________________________
> Intel-gfx mailing list
> Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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