Message ID | 20221011170011.17198-16-ville.syrjala@linux.intel.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | drm/i915: ELD precompute and readout | expand |
On Tue, 11 Oct 2022, Ville Syrjala <ville.syrjala@linux.intel.com> wrote: > From: Ville Syrjälä <ville.syrjala@linux.intel.com> > > Stash the ELD into the crtc_state and precompute it. This gets > rid of the ugly ELD mutation during intel_audio_codec_enable(), > and opens the door for the state checker. Should note the functional change of disabling audio up front if ELD is bogus. > > Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> > Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com> > Cc: Takashi Iwai <tiwai@suse.de> > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> I observe that I'm confused by DP MST audio and how it ties into this. Reviewed-by: Jani Nikula <jani.nikula@intel.com> > --- > drivers/gpu/drm/i915/display/intel_audio.c | 53 +++++++++++-------- > drivers/gpu/drm/i915/display/intel_audio.h | 5 ++ > .../drm/i915/display/intel_display_types.h | 2 + > drivers/gpu/drm/i915/display/intel_dp.c | 4 +- > drivers/gpu/drm/i915/display/intel_hdmi.c | 4 +- > 5 files changed, 45 insertions(+), 23 deletions(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_audio.c b/drivers/gpu/drm/i915/display/intel_audio.c > index 4eb5589a0f89..39291e870635 100644 > --- a/drivers/gpu/drm/i915/display/intel_audio.c > +++ b/drivers/gpu/drm/i915/display/intel_audio.c > @@ -334,8 +334,7 @@ static void g4x_audio_codec_enable(struct intel_encoder *encoder, > { > struct drm_i915_private *i915 = to_i915(encoder->base.dev); > struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); > - struct drm_connector *connector = conn_state->connector; > - const u32 *eld = (const u32 *)connector->eld; > + const u32 *eld = (const u32 *)crtc_state->eld; > int eld_buffer_size, len, i; > > intel_crtc_wait_for_next_vblank(crtc); > @@ -344,7 +343,7 @@ static void g4x_audio_codec_enable(struct intel_encoder *encoder, > G4X_ELD_VALID | G4X_ELD_ADDRESS_MASK, 0); > > eld_buffer_size = g4x_eld_buffer_size(i915); > - len = min(drm_eld_size(connector->eld) / 4, eld_buffer_size); > + len = min(drm_eld_size(crtc_state->eld) / 4, eld_buffer_size); > > for (i = 0; i < len; i++) > intel_de_write(i915, G4X_HDMIW_HDMIEDID, eld[i]); > @@ -616,9 +615,8 @@ static void hsw_audio_codec_enable(struct intel_encoder *encoder, > { > struct drm_i915_private *i915 = to_i915(encoder->base.dev); > struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); > - struct drm_connector *connector = conn_state->connector; > enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; > - const u32 *eld = (const u32 *)connector->eld; > + const u32 *eld = (const u32 *)crtc_state->eld; > int eld_buffer_size, len, i; > > mutex_lock(&i915->display.audio.mutex); > @@ -642,7 +640,7 @@ static void hsw_audio_codec_enable(struct intel_encoder *encoder, > IBX_ELD_ADDRESS_MASK, 0); > > eld_buffer_size = hsw_eld_buffer_size(i915, cpu_transcoder); > - len = min(drm_eld_size(connector->eld) / 4, eld_buffer_size); > + len = min(drm_eld_size(crtc_state->eld) / 4, eld_buffer_size); > > for (i = 0; i < len; i++) > intel_de_write(i915, HSW_AUD_EDID_DATA(cpu_transcoder), eld[i]); > @@ -744,8 +742,7 @@ static void ilk_audio_codec_enable(struct intel_encoder *encoder, > { > struct drm_i915_private *i915 = to_i915(encoder->base.dev); > struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); > - struct drm_connector *connector = conn_state->connector; > - const u32 *eld = (const u32 *)connector->eld; > + const u32 *eld = (const u32 *)crtc_state->eld; > enum port port = encoder->port; > enum pipe pipe = crtc->pipe; > int eld_buffer_size, len, i; > @@ -769,7 +766,7 @@ static void ilk_audio_codec_enable(struct intel_encoder *encoder, > IBX_ELD_ADDRESS_MASK, 0); > > eld_buffer_size = ilk_eld_buffer_size(i915, pipe); > - len = min(drm_eld_size(connector->eld) / 4, eld_buffer_size); > + len = min(drm_eld_size(crtc_state->eld) / 4, eld_buffer_size); > > for (i = 0; i < len; i++) > intel_de_write(i915, regs.hdmiw_hdmiedid, eld[i]); > @@ -795,6 +792,30 @@ static void ilk_audio_codec_enable(struct intel_encoder *encoder, > mutex_unlock(&i915->display.audio.mutex); > } > > +bool intel_audio_compute_config(struct intel_encoder *encoder, > + struct intel_crtc_state *crtc_state, > + struct drm_connector_state *conn_state) > +{ > + struct drm_i915_private *i915 = to_i915(encoder->base.dev); > + struct drm_connector *connector = conn_state->connector; > + const struct drm_display_mode *adjusted_mode = > + &crtc_state->hw.adjusted_mode; > + > + if (!connector->eld[0]) { > + drm_dbg_kms(&i915->drm, > + "Bogus ELD on [CONNECTOR:%d:%s]\n", > + connector->base.id, connector->name); > + return false; > + } > + > + BUILD_BUG_ON(sizeof(crtc_state->eld) != sizeof(connector->eld)); > + memcpy(crtc_state->eld, connector->eld, sizeof(crtc_state->eld)); > + > + crtc_state->eld[6] = drm_av_sync_delay(connector, adjusted_mode) / 2; > + > + return true; > +} > + > /** > * intel_audio_codec_enable - Enable the audio codec for HD audio > * @encoder: encoder on which to enable audio > @@ -812,8 +833,6 @@ void intel_audio_codec_enable(struct intel_encoder *encoder, > struct i915_audio_component *acomp = i915->display.audio.component; > struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); > struct drm_connector *connector = conn_state->connector; > - const struct drm_display_mode *adjusted_mode = > - &crtc_state->hw.adjusted_mode; > enum port port = encoder->port; > enum pipe pipe = crtc->pipe; > > @@ -823,15 +842,7 @@ void intel_audio_codec_enable(struct intel_encoder *encoder, > drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s] Enable audio codec on pipe %c, %u bytes ELD\n", > connector->base.id, connector->name, > encoder->base.base.id, encoder->base.name, > - pipe_name(pipe), drm_eld_size(connector->eld)); > - > - /* FIXME precompute the ELD in .compute_config() */ > - if (!connector->eld[0]) > - drm_dbg_kms(&i915->drm, > - "Bogus ELD on [CONNECTOR:%d:%s]\n", > - connector->base.id, connector->name); > - > - connector->eld[6] = drm_av_sync_delay(connector, adjusted_mode) / 2; > + pipe_name(pipe), drm_eld_size(crtc_state->eld)); > > if (i915->display.funcs.audio) > i915->display.funcs.audio->audio_codec_enable(encoder, > @@ -854,7 +865,7 @@ void intel_audio_codec_enable(struct intel_encoder *encoder, > (int) port, (int) pipe); > } > > - intel_lpe_audio_notify(i915, pipe, port, connector->eld, > + intel_lpe_audio_notify(i915, pipe, port, crtc_state->eld, > crtc_state->port_clock, > intel_crtc_has_dp_encoder(crtc_state)); > } > diff --git a/drivers/gpu/drm/i915/display/intel_audio.h b/drivers/gpu/drm/i915/display/intel_audio.h > index 63b22131dc45..b9070f336bcf 100644 > --- a/drivers/gpu/drm/i915/display/intel_audio.h > +++ b/drivers/gpu/drm/i915/display/intel_audio.h > @@ -6,12 +6,17 @@ > #ifndef __INTEL_AUDIO_H__ > #define __INTEL_AUDIO_H__ > > +#include <linux/types.h> > + > struct drm_connector_state; > struct drm_i915_private; > struct intel_crtc_state; > struct intel_encoder; > > void intel_audio_hooks_init(struct drm_i915_private *dev_priv); > +bool intel_audio_compute_config(struct intel_encoder *encoder, > + struct intel_crtc_state *crtc_state, > + struct drm_connector_state *conn_state); > void intel_audio_codec_enable(struct intel_encoder *encoder, > const struct intel_crtc_state *crtc_state, > const struct drm_connector_state *conn_state); > diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h > index e2b853e9e51d..f378bcaf0f65 100644 > --- a/drivers/gpu/drm/i915/display/intel_display_types.h > +++ b/drivers/gpu/drm/i915/display/intel_display_types.h > @@ -1248,6 +1248,8 @@ struct intel_crtc_state { > struct drm_dp_vsc_sdp vsc; > } infoframes; > > + u8 eld[MAX_ELD_BYTES]; > + > /* HDMI scrambling status */ > bool hdmi_scrambling; > > diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c > index a060903891b2..d6c88f14d31d 100644 > --- a/drivers/gpu/drm/i915/display/intel_dp.c > +++ b/drivers/gpu/drm/i915/display/intel_dp.c > @@ -2023,7 +2023,9 @@ intel_dp_compute_config(struct intel_encoder *encoder, > if (HAS_PCH_SPLIT(dev_priv) && !HAS_DDI(dev_priv) && encoder->port != PORT_A) > pipe_config->has_pch_encoder = true; > > - pipe_config->has_audio = intel_dp_has_audio(encoder, pipe_config, conn_state); > + pipe_config->has_audio = > + intel_dp_has_audio(encoder, pipe_config, conn_state) && > + intel_audio_compute_config(encoder, pipe_config, conn_state); > > fixed_mode = intel_panel_fixed_mode(connector, adjusted_mode); > if (intel_dp_is_edp(intel_dp) && fixed_mode) { > diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c > index 93519fb23d9d..d10998801228 100644 > --- a/drivers/gpu/drm/i915/display/intel_hdmi.c > +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c > @@ -43,6 +43,7 @@ > #include "i915_debugfs.h" > #include "i915_drv.h" > #include "intel_atomic.h" > +#include "intel_audio.h" > #include "intel_connector.h" > #include "intel_ddi.h" > #include "intel_de.h" > @@ -2261,7 +2262,8 @@ int intel_hdmi_compute_config(struct intel_encoder *encoder, > pipe_config->has_pch_encoder = true; > > pipe_config->has_audio = > - intel_hdmi_has_audio(encoder, pipe_config, conn_state); > + intel_hdmi_has_audio(encoder, pipe_config, conn_state) && > + intel_audio_compute_config(encoder, pipe_config, conn_state); > > /* > * Try to respect downstream TMDS clock limits first, if
diff --git a/drivers/gpu/drm/i915/display/intel_audio.c b/drivers/gpu/drm/i915/display/intel_audio.c index 4eb5589a0f89..39291e870635 100644 --- a/drivers/gpu/drm/i915/display/intel_audio.c +++ b/drivers/gpu/drm/i915/display/intel_audio.c @@ -334,8 +334,7 @@ static void g4x_audio_codec_enable(struct intel_encoder *encoder, { struct drm_i915_private *i915 = to_i915(encoder->base.dev); struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); - struct drm_connector *connector = conn_state->connector; - const u32 *eld = (const u32 *)connector->eld; + const u32 *eld = (const u32 *)crtc_state->eld; int eld_buffer_size, len, i; intel_crtc_wait_for_next_vblank(crtc); @@ -344,7 +343,7 @@ static void g4x_audio_codec_enable(struct intel_encoder *encoder, G4X_ELD_VALID | G4X_ELD_ADDRESS_MASK, 0); eld_buffer_size = g4x_eld_buffer_size(i915); - len = min(drm_eld_size(connector->eld) / 4, eld_buffer_size); + len = min(drm_eld_size(crtc_state->eld) / 4, eld_buffer_size); for (i = 0; i < len; i++) intel_de_write(i915, G4X_HDMIW_HDMIEDID, eld[i]); @@ -616,9 +615,8 @@ static void hsw_audio_codec_enable(struct intel_encoder *encoder, { struct drm_i915_private *i915 = to_i915(encoder->base.dev); struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); - struct drm_connector *connector = conn_state->connector; enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; - const u32 *eld = (const u32 *)connector->eld; + const u32 *eld = (const u32 *)crtc_state->eld; int eld_buffer_size, len, i; mutex_lock(&i915->display.audio.mutex); @@ -642,7 +640,7 @@ static void hsw_audio_codec_enable(struct intel_encoder *encoder, IBX_ELD_ADDRESS_MASK, 0); eld_buffer_size = hsw_eld_buffer_size(i915, cpu_transcoder); - len = min(drm_eld_size(connector->eld) / 4, eld_buffer_size); + len = min(drm_eld_size(crtc_state->eld) / 4, eld_buffer_size); for (i = 0; i < len; i++) intel_de_write(i915, HSW_AUD_EDID_DATA(cpu_transcoder), eld[i]); @@ -744,8 +742,7 @@ static void ilk_audio_codec_enable(struct intel_encoder *encoder, { struct drm_i915_private *i915 = to_i915(encoder->base.dev); struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); - struct drm_connector *connector = conn_state->connector; - const u32 *eld = (const u32 *)connector->eld; + const u32 *eld = (const u32 *)crtc_state->eld; enum port port = encoder->port; enum pipe pipe = crtc->pipe; int eld_buffer_size, len, i; @@ -769,7 +766,7 @@ static void ilk_audio_codec_enable(struct intel_encoder *encoder, IBX_ELD_ADDRESS_MASK, 0); eld_buffer_size = ilk_eld_buffer_size(i915, pipe); - len = min(drm_eld_size(connector->eld) / 4, eld_buffer_size); + len = min(drm_eld_size(crtc_state->eld) / 4, eld_buffer_size); for (i = 0; i < len; i++) intel_de_write(i915, regs.hdmiw_hdmiedid, eld[i]); @@ -795,6 +792,30 @@ static void ilk_audio_codec_enable(struct intel_encoder *encoder, mutex_unlock(&i915->display.audio.mutex); } +bool intel_audio_compute_config(struct intel_encoder *encoder, + struct intel_crtc_state *crtc_state, + struct drm_connector_state *conn_state) +{ + struct drm_i915_private *i915 = to_i915(encoder->base.dev); + struct drm_connector *connector = conn_state->connector; + const struct drm_display_mode *adjusted_mode = + &crtc_state->hw.adjusted_mode; + + if (!connector->eld[0]) { + drm_dbg_kms(&i915->drm, + "Bogus ELD on [CONNECTOR:%d:%s]\n", + connector->base.id, connector->name); + return false; + } + + BUILD_BUG_ON(sizeof(crtc_state->eld) != sizeof(connector->eld)); + memcpy(crtc_state->eld, connector->eld, sizeof(crtc_state->eld)); + + crtc_state->eld[6] = drm_av_sync_delay(connector, adjusted_mode) / 2; + + return true; +} + /** * intel_audio_codec_enable - Enable the audio codec for HD audio * @encoder: encoder on which to enable audio @@ -812,8 +833,6 @@ void intel_audio_codec_enable(struct intel_encoder *encoder, struct i915_audio_component *acomp = i915->display.audio.component; struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct drm_connector *connector = conn_state->connector; - const struct drm_display_mode *adjusted_mode = - &crtc_state->hw.adjusted_mode; enum port port = encoder->port; enum pipe pipe = crtc->pipe; @@ -823,15 +842,7 @@ void intel_audio_codec_enable(struct intel_encoder *encoder, drm_dbg_kms(&i915->drm, "[CONNECTOR:%d:%s][ENCODER:%d:%s] Enable audio codec on pipe %c, %u bytes ELD\n", connector->base.id, connector->name, encoder->base.base.id, encoder->base.name, - pipe_name(pipe), drm_eld_size(connector->eld)); - - /* FIXME precompute the ELD in .compute_config() */ - if (!connector->eld[0]) - drm_dbg_kms(&i915->drm, - "Bogus ELD on [CONNECTOR:%d:%s]\n", - connector->base.id, connector->name); - - connector->eld[6] = drm_av_sync_delay(connector, adjusted_mode) / 2; + pipe_name(pipe), drm_eld_size(crtc_state->eld)); if (i915->display.funcs.audio) i915->display.funcs.audio->audio_codec_enable(encoder, @@ -854,7 +865,7 @@ void intel_audio_codec_enable(struct intel_encoder *encoder, (int) port, (int) pipe); } - intel_lpe_audio_notify(i915, pipe, port, connector->eld, + intel_lpe_audio_notify(i915, pipe, port, crtc_state->eld, crtc_state->port_clock, intel_crtc_has_dp_encoder(crtc_state)); } diff --git a/drivers/gpu/drm/i915/display/intel_audio.h b/drivers/gpu/drm/i915/display/intel_audio.h index 63b22131dc45..b9070f336bcf 100644 --- a/drivers/gpu/drm/i915/display/intel_audio.h +++ b/drivers/gpu/drm/i915/display/intel_audio.h @@ -6,12 +6,17 @@ #ifndef __INTEL_AUDIO_H__ #define __INTEL_AUDIO_H__ +#include <linux/types.h> + struct drm_connector_state; struct drm_i915_private; struct intel_crtc_state; struct intel_encoder; void intel_audio_hooks_init(struct drm_i915_private *dev_priv); +bool intel_audio_compute_config(struct intel_encoder *encoder, + struct intel_crtc_state *crtc_state, + struct drm_connector_state *conn_state); void intel_audio_codec_enable(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state); diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index e2b853e9e51d..f378bcaf0f65 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -1248,6 +1248,8 @@ struct intel_crtc_state { struct drm_dp_vsc_sdp vsc; } infoframes; + u8 eld[MAX_ELD_BYTES]; + /* HDMI scrambling status */ bool hdmi_scrambling; diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index a060903891b2..d6c88f14d31d 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -2023,7 +2023,9 @@ intel_dp_compute_config(struct intel_encoder *encoder, if (HAS_PCH_SPLIT(dev_priv) && !HAS_DDI(dev_priv) && encoder->port != PORT_A) pipe_config->has_pch_encoder = true; - pipe_config->has_audio = intel_dp_has_audio(encoder, pipe_config, conn_state); + pipe_config->has_audio = + intel_dp_has_audio(encoder, pipe_config, conn_state) && + intel_audio_compute_config(encoder, pipe_config, conn_state); fixed_mode = intel_panel_fixed_mode(connector, adjusted_mode); if (intel_dp_is_edp(intel_dp) && fixed_mode) { diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index 93519fb23d9d..d10998801228 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -43,6 +43,7 @@ #include "i915_debugfs.h" #include "i915_drv.h" #include "intel_atomic.h" +#include "intel_audio.h" #include "intel_connector.h" #include "intel_ddi.h" #include "intel_de.h" @@ -2261,7 +2262,8 @@ int intel_hdmi_compute_config(struct intel_encoder *encoder, pipe_config->has_pch_encoder = true; pipe_config->has_audio = - intel_hdmi_has_audio(encoder, pipe_config, conn_state); + intel_hdmi_has_audio(encoder, pipe_config, conn_state) && + intel_audio_compute_config(encoder, pipe_config, conn_state); /* * Try to respect downstream TMDS clock limits first, if