[Intel-gfx] [PATCH 15/22] drm/i915/audio: Precompute the ELD
Ville Syrjala
ville.syrjala at linux.intel.com
Tue Oct 11 17:00:04 UTC 2022
From: Ville Syrjälä <ville.syrjala at 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.
Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah at intel.com>
Cc: Kai Vehmanen <kai.vehmanen at linux.intel.com>
Cc: Takashi Iwai <tiwai at suse.de>
Signed-off-by: Ville Syrjälä <ville.syrjala at linux.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
--
2.35.1
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