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Jani Nikula

2024-May-10 15:08 UTC

[RESEND 0/6] drm, nouveau/radeon/amdpgu: edid_blob_ptr cleanups

I've sent this some moths ago, let's try again...

BR,
Jani.

Jani Nikula (6):
  drm/nouveau: convert to using is_hdmi and has_audio from display info
  drm/radeon: convert to using is_hdmi and has_audio from display info
  drm/radeon: remove radeon_connector_edid() and stop using
    edid_blob_ptr
  drm/amdgpu: remove amdgpu_connector_edid() and stop using
    edid_blob_ptr
  drm/edid: add a helper for EDID sysfs property show
  drm/connector: update edid_blob_ptr documentation

 .../gpu/drm/amd/amdgpu/amdgpu_connectors.c    | 16 ---------
 .../gpu/drm/amd/amdgpu/amdgpu_connectors.h    |  1 -
 drivers/gpu/drm/amd/amdgpu/dce_v10_0.c        |  4 +--
 drivers/gpu/drm/amd/amdgpu/dce_v11_0.c        |  4 +--
 drivers/gpu/drm/amd/amdgpu/dce_v6_0.c         |  4 +--
 drivers/gpu/drm/amd/amdgpu/dce_v8_0.c         |  4 +--
 drivers/gpu/drm/drm_crtc_internal.h           |  2 ++
 drivers/gpu/drm/drm_edid.c                    | 33 +++++++++++++++++++
 drivers/gpu/drm/drm_sysfs.c                   | 24 ++------------
 drivers/gpu/drm/nouveau/dispnv50/disp.c       |  8 ++---
 drivers/gpu/drm/nouveau/dispnv50/head.c       |  8 +----
 drivers/gpu/drm/nouveau/nouveau_connector.c   |  2 +-
 drivers/gpu/drm/radeon/atombios_encoders.c    | 10 +++---
 drivers/gpu/drm/radeon/evergreen_hdmi.c       |  5 ++-
 drivers/gpu/drm/radeon/radeon_audio.c         | 13 ++++----
 drivers/gpu/drm/radeon/radeon_connectors.c    | 27 ++++-----------
 drivers/gpu/drm/radeon/radeon_display.c       |  2 +-
 drivers/gpu/drm/radeon/radeon_encoders.c      |  4 +--
 drivers/gpu/drm/radeon/radeon_mode.h          |  2 --
 include/drm/drm_connector.h                   |  6 +++-
 20 files changed, 79 insertions(+), 100 deletions(-)

-- 
2.39.2

Jani Nikula

2024-May-10 15:08 UTC

head link

[RESEND 1/6] drm/nouveau: convert to using is_hdmi and has_audio from display info

Prefer the parsed results for is_hdmi and has_audio in display info over
calling drm_detect_hdmi_monitor() and drm_detect_monitor_audio(),
respectively.

Conveniently, this also removes the need to use edid_blob_ptr.

v2: Reverse a backwards if condition (Ilia)

Cc: Karol Herbst <kherbst at redhat.com>
Cc: Lyude Paul <lyude at redhat.com>
Cc: Danilo Krummrich <dakr at redhat.com>
Cc: nouveau at lists.freedesktop.org
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/nouveau/dispnv50/disp.c     | 8 ++++----
 drivers/gpu/drm/nouveau/dispnv50/head.c     | 8 +-------
 drivers/gpu/drm/nouveau/nouveau_connector.c | 2 +-
 3 files changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/dispnv50/disp.c
b/drivers/gpu/drm/nouveau/dispnv50/disp.c
index 0c3d88ad0b0e..168c27213287 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/disp.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/disp.c
@@ -751,7 +751,7 @@ nv50_audio_enable(struct drm_encoder *encoder, struct
nouveau_crtc *nv_crtc,
 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
 	struct nvif_outp *outp = &nv_encoder->outp;
 
-	if (!nv50_audio_supported(encoder) ||
!drm_detect_monitor_audio(nv_connector->edid))
+	if (!nv50_audio_supported(encoder) ||
!nv_connector->base.display_info.has_audio)
 		return;
 
 	mutex_lock(&drm->audio.lock);
@@ -1765,7 +1765,7 @@ nv50_sor_atomic_enable(struct drm_encoder *encoder, struct
drm_atomic_state *sta
 	if ((disp->disp->object.oclass == GT214_DISP ||
 	     disp->disp->object.oclass >= GF110_DISP) &&
 	    nv_encoder->dcb->type != DCB_OUTPUT_LVDS &&
-	    drm_detect_monitor_audio(nv_connector->edid))
+	    nv_connector->base.display_info.has_audio)
 		hda = true;
 
 	if (!nvif_outp_acquired(outp))
@@ -1774,7 +1774,7 @@ nv50_sor_atomic_enable(struct drm_encoder *encoder, struct
drm_atomic_state *sta
 	switch (nv_encoder->dcb->type) {
 	case DCB_OUTPUT_TMDS:
 		if (disp->disp->object.oclass != NV50_DISP &&
-		    drm_detect_hdmi_monitor(nv_connector->edid))
+		    nv_connector->base.display_info.is_hdmi)
 			nv50_hdmi_enable(encoder, nv_crtc, nv_connector, state, mode, hda);
 
 		if (nv_encoder->outp.or.link & 1) {
@@ -1787,7 +1787,7 @@ nv50_sor_atomic_enable(struct drm_encoder *encoder, struct
drm_atomic_state *sta
 			 */
 			if (mode->clock >= 165000 &&
 			    nv_encoder->dcb->duallink_possible &&
-			    !drm_detect_hdmi_monitor(nv_connector->edid))
+			    !nv_connector->base.display_info.is_hdmi)
 				proto = NV507D_SOR_SET_CONTROL_PROTOCOL_DUAL_TMDS;
 		} else {
 			proto = NV507D_SOR_SET_CONTROL_PROTOCOL_SINGLE_TMDS_B;
diff --git a/drivers/gpu/drm/nouveau/dispnv50/head.c
b/drivers/gpu/drm/nouveau/dispnv50/head.c
index 83355dbc15ee..d7c74cc43ba5 100644
--- a/drivers/gpu/drm/nouveau/dispnv50/head.c
+++ b/drivers/gpu/drm/nouveau/dispnv50/head.c
@@ -127,14 +127,8 @@ nv50_head_atomic_check_view(struct nv50_head_atom *armh,
 	struct drm_display_mode *omode = &asyh->state.adjusted_mode;
 	struct drm_display_mode *umode = &asyh->state.mode;
 	int mode = asyc->scaler.mode;
-	struct edid *edid;
 	int umode_vdisplay, omode_hdisplay, omode_vdisplay;
 
-	if (connector->edid_blob_ptr)
-		edid = (struct edid *)connector->edid_blob_ptr->data;
-	else
-		edid = NULL;
-
 	if (!asyc->scaler.full) {
 		if (mode == DRM_MODE_SCALE_NONE)
 			omode = umode;
@@ -162,7 +156,7 @@ nv50_head_atomic_check_view(struct nv50_head_atom *armh,
 	 */
 	if ((asyc->scaler.underscan.mode == UNDERSCAN_ON ||
 	    (asyc->scaler.underscan.mode == UNDERSCAN_AUTO &&
-	     drm_detect_hdmi_monitor(edid)))) {
+	     connector->display_info.is_hdmi))) {
 		u32 bX = asyc->scaler.underscan.hborder;
 		u32 bY = asyc->scaler.underscan.vborder;
 		u32 r = (asyh->view.oH << 19) / asyh->view.oW;
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c
b/drivers/gpu/drm/nouveau/nouveau_connector.c
index 856b3ef5edb8..938832a6af15 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -1034,7 +1034,7 @@ get_tmds_link_bandwidth(struct drm_connector *connector)
 	unsigned duallink_scale  		nouveau_duallink &&
nv_encoder->dcb->duallink_possible ? 2 : 1;
 
-	if (drm_detect_hdmi_monitor(nv_connector->edid)) {
+	if (nv_connector->base.display_info.is_hdmi) {
 		info = &nv_connector->base.display_info;
 		duallink_scale = 1;
 	}
-- 
2.39.2

Jani Nikula

2024-May-10 15:08 UTC

head link

[RESEND 2/6] drm/radeon: convert to using is_hdmi and has_audio from display info

Prefer the parsed results for is_hdmi and has_audio in display info over
calling drm_detect_hdmi_monitor() and drm_detect_monitor_audio(),
respectively.

Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: Christian K?nig <christian.koenig at amd.com>
Cc: Pan, Xinhui <Xinhui.Pan at amd.com>
Cc: amd-gfx at lists.freedesktop.org
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/radeon/atombios_encoders.c | 10 +++++-----
 drivers/gpu/drm/radeon/evergreen_hdmi.c    |  5 ++---
 drivers/gpu/drm/radeon/radeon_audio.c      |  6 +++---
 drivers/gpu/drm/radeon/radeon_connectors.c | 12 ++++++------
 drivers/gpu/drm/radeon/radeon_display.c    |  2 +-
 drivers/gpu/drm/radeon/radeon_encoders.c   |  4 ++--
 6 files changed, 19 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c
b/drivers/gpu/drm/radeon/atombios_encoders.c
index 2bff0d9e20f5..0aa395fac36f 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -701,7 +701,7 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 			if (radeon_connector->use_digital &&
 			    (radeon_connector->audio == RADEON_AUDIO_ENABLE))
 				return ATOM_ENCODER_MODE_HDMI;
-			else if (drm_detect_hdmi_monitor(radeon_connector_edid(connector))
&&
+			else if (connector->display_info.is_hdmi &&
 				 (radeon_connector->audio == RADEON_AUDIO_AUTO))
 				return ATOM_ENCODER_MODE_HDMI;
 			else if (radeon_connector->use_digital)
@@ -720,7 +720,7 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 		if (radeon_audio != 0) {
 			if (radeon_connector->audio == RADEON_AUDIO_ENABLE)
 				return ATOM_ENCODER_MODE_HDMI;
-			else if (drm_detect_hdmi_monitor(radeon_connector_edid(connector))
&&
+			else if (connector->display_info.is_hdmi &&
 				 (radeon_connector->audio == RADEON_AUDIO_AUTO))
 				return ATOM_ENCODER_MODE_HDMI;
 			else
@@ -737,14 +737,14 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 		if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
 		    (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) {
 			if (radeon_audio != 0 &&
-			    drm_detect_monitor_audio(radeon_connector_edid(connector)) &&
+			    connector->display_info.has_audio &&
 			    ASIC_IS_DCE4(rdev) && !ASIC_IS_DCE5(rdev))
 				return ATOM_ENCODER_MODE_DP_AUDIO;
 			return ATOM_ENCODER_MODE_DP;
 		} else if (radeon_audio != 0) {
 			if (radeon_connector->audio == RADEON_AUDIO_ENABLE)
 				return ATOM_ENCODER_MODE_HDMI;
-			else if (drm_detect_hdmi_monitor(radeon_connector_edid(connector))
&&
+			else if (connector->display_info.is_hdmi &&
 				 (radeon_connector->audio == RADEON_AUDIO_AUTO))
 				return ATOM_ENCODER_MODE_HDMI;
 			else
@@ -755,7 +755,7 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 		break;
 	case DRM_MODE_CONNECTOR_eDP:
 		if (radeon_audio != 0 &&
-		    drm_detect_monitor_audio(radeon_connector_edid(connector)) &&
+		    connector->display_info.has_audio &&
 		    ASIC_IS_DCE4(rdev) && !ASIC_IS_DCE5(rdev))
 			return ATOM_ENCODER_MODE_DP_AUDIO;
 		return ATOM_ENCODER_MODE_DP;
diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c
b/drivers/gpu/drm/radeon/evergreen_hdmi.c
index 681119c91d94..09dda114e218 100644
--- a/drivers/gpu/drm/radeon/evergreen_hdmi.c
+++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c
@@ -412,7 +412,7 @@ void evergreen_hdmi_enable(struct drm_encoder *encoder, bool
enable)
 	if (enable) {
 		struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 
-		if (connector &&
drm_detect_monitor_audio(radeon_connector_edid(connector))) {
+		if (connector && connector->display_info.has_audio) {
 			WREG32(HDMI_INFOFRAME_CONTROL0 + dig->afmt->offset,
 			       HDMI_AVI_INFO_SEND | /* enable AVI info frames */
 			       HDMI_AVI_INFO_CONT | /* required for audio info values to be updated
*/
@@ -450,8 +450,7 @@ void evergreen_dp_enable(struct drm_encoder *encoder, bool
enable)
 	if (!dig || !dig->afmt)
 		return;
 
-	if (enable && connector &&
-	    drm_detect_monitor_audio(radeon_connector_edid(connector))) {
+	if (enable && connector &&
connector->display_info.has_audio) {
 		struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
 		struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 		struct radeon_connector_atom_dig *dig_connector;
diff --git a/drivers/gpu/drm/radeon/radeon_audio.c
b/drivers/gpu/drm/radeon/radeon_audio.c
index 74753bb26d33..16c10db3ce6f 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.c
+++ b/drivers/gpu/drm/radeon/radeon_audio.c
@@ -409,7 +409,7 @@ void radeon_audio_detect(struct drm_connector *connector,
 			radeon_encoder->audio = rdev->audio.hdmi_funcs;
 		}
 
-		if (drm_detect_monitor_audio(radeon_connector_edid(connector))) {
+		if (connector->display_info.has_audio) {
 			if (!dig->pin)
 				dig->pin = radeon_audio_get_pin(encoder);
 			radeon_audio_enable(rdev, dig->pin, 0xf);
@@ -646,7 +646,7 @@ static void radeon_audio_hdmi_mode_set(struct drm_encoder
*encoder,
 	if (!connector)
 		return;
 
-	if (drm_detect_monitor_audio(radeon_connector_edid(connector))) {
+	if (connector->display_info.has_audio) {
 		radeon_audio_set_mute(encoder, true);
 
 		radeon_audio_write_speaker_allocation(encoder);
@@ -686,7 +686,7 @@ static void radeon_audio_dp_mode_set(struct drm_encoder
*encoder,
 	if (!connector)
 		return;
 
-	if (drm_detect_monitor_audio(radeon_connector_edid(connector))) {
+	if (connector->display_info.has_audio) {
 		radeon_audio_write_speaker_allocation(encoder);
 		radeon_audio_write_sad_regs(encoder);
 		radeon_audio_write_latency_fields(encoder, mode);
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c
b/drivers/gpu/drm/radeon/radeon_connectors.c
index b84b58926106..81b5c3c8f658 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -109,7 +109,7 @@ int radeon_get_monitor_bpc(struct drm_connector *connector)
 	case DRM_MODE_CONNECTOR_DVII:
 	case DRM_MODE_CONNECTOR_HDMIB:
 		if (radeon_connector->use_digital) {
-			if (drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
+			if (connector->display_info.is_hdmi) {
 				if (connector->display_info.bpc)
 					bpc = connector->display_info.bpc;
 			}
@@ -117,7 +117,7 @@ int radeon_get_monitor_bpc(struct drm_connector *connector)
 		break;
 	case DRM_MODE_CONNECTOR_DVID:
 	case DRM_MODE_CONNECTOR_HDMIA:
-		if (drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
+		if (connector->display_info.is_hdmi) {
 			if (connector->display_info.bpc)
 				bpc = connector->display_info.bpc;
 		}
@@ -126,7 +126,7 @@ int radeon_get_monitor_bpc(struct drm_connector *connector)
 		dig_connector = radeon_connector->con_priv;
 		if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
 		    (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP) ||
-		    drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
+		    connector->display_info.is_hdmi) {
 			if (connector->display_info.bpc)
 				bpc = connector->display_info.bpc;
 		}
@@ -150,7 +150,7 @@ int radeon_get_monitor_bpc(struct drm_connector *connector)
 		break;
 	}
 
-	if (drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
+	if (connector->display_info.is_hdmi) {
 		/* hdmi deep color only implemented on DCE4+ */
 		if ((bpc > 8) && !ASIC_IS_DCE4(rdev)) {
 			DRM_DEBUG("%s: HDMI deep color %d bpc unsupported. Using 8
bpc.\n",
@@ -1478,7 +1478,7 @@ static enum drm_mode_status radeon_dvi_mode_valid(struct
drm_connector *connecto
 		    (radeon_connector->connector_object_id ==
CONNECTOR_OBJECT_ID_DUAL_LINK_DVI_D) ||
 		    (radeon_connector->connector_object_id ==
CONNECTOR_OBJECT_ID_HDMI_TYPE_B))
 			return MODE_OK;
-		else if (ASIC_IS_DCE6(rdev) &&
drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
+		else if (ASIC_IS_DCE6(rdev) && connector->display_info.is_hdmi) {
 			/* HDMI 1.3+ supports max clock of 340 Mhz */
 			if (mode->clock > 340000)
 				return MODE_CLOCK_HIGH;
@@ -1774,7 +1774,7 @@ static enum drm_mode_status radeon_dp_mode_valid(struct
drm_connector *connector
 		    (radeon_dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP)) {
 			return radeon_dp_mode_valid_helper(connector, mode);
 		} else {
-			if (ASIC_IS_DCE6(rdev) &&
drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
+			if (ASIC_IS_DCE6(rdev) && connector->display_info.is_hdmi) {
 				/* HDMI 1.3+ supports max clock of 340 Mhz */
 				if (mode->clock > 340000)
 					return MODE_CLOCK_HIGH;
diff --git a/drivers/gpu/drm/radeon/radeon_display.c
b/drivers/gpu/drm/radeon/radeon_display.c
index 5f1d24d3120c..843383f7237f 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -1722,7 +1722,7 @@ bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
 			    (!(mode->flags & DRM_MODE_FLAG_INTERLACE)) &&
 			    ((radeon_encoder->underscan_type == UNDERSCAN_ON) ||
 			     ((radeon_encoder->underscan_type == UNDERSCAN_AUTO) &&
-			      drm_detect_hdmi_monitor(radeon_connector_edid(connector)) &&
+			      connector->display_info.is_hdmi &&
 			      is_hdtv_mode(mode)))) {
 				if (radeon_encoder->underscan_hborder != 0)
 					radeon_crtc->h_border = radeon_encoder->underscan_hborder;
diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c
b/drivers/gpu/drm/radeon/radeon_encoders.c
index 3de3dce9e89d..0f723292409e 100644
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -386,7 +386,7 @@ bool radeon_dig_monitor_is_duallink(struct drm_encoder
*encoder,
 	case DRM_MODE_CONNECTOR_HDMIB:
 		if (radeon_connector->use_digital) {
 			/* HDMI 1.3 supports up to 340 Mhz over single link */
-			if (ASIC_IS_DCE6(rdev) &&
drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
+			if (ASIC_IS_DCE6(rdev) && connector->display_info.is_hdmi) {
 				if (pixel_clock > 340000)
 					return true;
 				else
@@ -408,7 +408,7 @@ bool radeon_dig_monitor_is_duallink(struct drm_encoder
*encoder,
 			return false;
 		else {
 			/* HDMI 1.3 supports up to 340 Mhz over single link */
-			if (ASIC_IS_DCE6(rdev) &&
drm_detect_hdmi_monitor(radeon_connector_edid(connector))) {
+			if (ASIC_IS_DCE6(rdev) && connector->display_info.is_hdmi) {
 				if (pixel_clock > 340000)
 					return true;
 				else
-- 
2.39.2

Jani Nikula

2024-May-10 15:08 UTC

head link

[RESEND 3/6] drm/radeon: remove radeon_connector_edid() and stop using edid_blob_ptr

radeon_connector_edid() copies the EDID from edid_blob_ptr as a side
effect if radeon_connector->edid isn't initialized. However, everywhere
that the returned EDID is used, the EDID should have been set
beforehands.

Only the drm EDID code should look at the EDID property, anyway, so stop
using it.

Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: Christian K?nig <christian.koenig at amd.com>
Cc: Pan, Xinhui <Xinhui.Pan at amd.com>
Cc: amd-gfx at lists.freedesktop.org
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/radeon/radeon_audio.c      |  7 ++++---
 drivers/gpu/drm/radeon/radeon_connectors.c | 15 ---------------
 drivers/gpu/drm/radeon/radeon_mode.h       |  2 --
 3 files changed, 4 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_audio.c
b/drivers/gpu/drm/radeon/radeon_audio.c
index 16c10db3ce6f..0bcd767b9f47 100644
--- a/drivers/gpu/drm/radeon/radeon_audio.c
+++ b/drivers/gpu/drm/radeon/radeon_audio.c
@@ -303,6 +303,7 @@ void radeon_audio_endpoint_wreg(struct radeon_device *rdev,
u32 offset,
 static void radeon_audio_write_sad_regs(struct drm_encoder *encoder)
 {
 	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
+	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct cea_sad *sads;
 	int sad_count;
@@ -310,7 +311,7 @@ static void radeon_audio_write_sad_regs(struct drm_encoder
*encoder)
 	if (!connector)
 		return;
 
-	sad_count = drm_edid_to_sad(radeon_connector_edid(connector), &sads);
+	sad_count = drm_edid_to_sad(radeon_connector->edid, &sads);
 	if (sad_count < 0)
 		DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
 	if (sad_count <= 0)
@@ -326,6 +327,7 @@ static void radeon_audio_write_sad_regs(struct drm_encoder
*encoder)
 static void radeon_audio_write_speaker_allocation(struct drm_encoder *encoder)
 {
 	struct drm_connector *connector = radeon_get_connector_for_encoder(encoder);
+	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	u8 *sadb = NULL;
 	int sad_count;
@@ -333,8 +335,7 @@ static void radeon_audio_write_speaker_allocation(struct
drm_encoder *encoder)
 	if (!connector)
 		return;
 
-	sad_count = drm_edid_to_speaker_allocation(radeon_connector_edid(connector),
-						   &sadb);
+	sad_count = drm_edid_to_speaker_allocation(radeon_connector->edid,
&sadb);
 	if (sad_count < 0) {
 		DRM_DEBUG("Couldn't read Speaker Allocation Data Block: %d\n",
 			  sad_count);
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c
b/drivers/gpu/drm/radeon/radeon_connectors.c
index 81b5c3c8f658..80879e946342 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -255,21 +255,6 @@ static struct drm_encoder *radeon_find_encoder(struct
drm_connector *connector,
 	return NULL;
 }
 
-struct edid *radeon_connector_edid(struct drm_connector *connector)
-{
-	struct radeon_connector *radeon_connector = to_radeon_connector(connector);
-	struct drm_property_blob *edid_blob = connector->edid_blob_ptr;
-
-	if (radeon_connector->edid) {
-		return radeon_connector->edid;
-	} else if (edid_blob) {
-		struct edid *edid = kmemdup(edid_blob->data, edid_blob->length,
GFP_KERNEL);
-		if (edid)
-			radeon_connector->edid = edid;
-	}
-	return radeon_connector->edid;
-}
-
 static void radeon_connector_get_edid(struct drm_connector *connector)
 {
 	struct drm_device *dev = connector->dev;
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h
b/drivers/gpu/drm/radeon/radeon_mode.h
index 546381a5c918..e0a5af180801 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -701,8 +701,6 @@ extern u16
radeon_connector_encoder_get_dp_bridge_encoder_id(struct drm_connecto
 extern bool radeon_connector_is_dp12_capable(struct drm_connector *connector);
 extern int radeon_get_monitor_bpc(struct drm_connector *connector);
 
-extern struct edid *radeon_connector_edid(struct drm_connector *connector);
-
 extern void radeon_connector_hotplug(struct drm_connector *connector);
 extern int radeon_dp_mode_valid_helper(struct drm_connector *connector,
 				       struct drm_display_mode *mode);
-- 
2.39.2

Jani Nikula

2024-May-10 15:08 UTC

head link

[RESEND 4/6] drm/amdgpu: remove amdgpu_connector_edid() and stop using edid_blob_ptr

amdgpu_connector_edid() copies the EDID from edid_blob_ptr as a side
effect if amdgpu_connector->edid isn't initialized. However, everywhere
that the returned EDID is used, the EDID should have been set
beforehands.

Only the drm EDID code should look at the EDID property, anyway, so stop
using it.

Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: Christian K?nig <christian.koenig at amd.com>
Cc: Pan, Xinhui <Xinhui.Pan at amd.com>
Cc: amd-gfx at lists.freedesktop.org
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c | 16 ----------------
 drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.h |  1 -
 drivers/gpu/drm/amd/amdgpu/dce_v10_0.c         |  4 ++--
 drivers/gpu/drm/amd/amdgpu/dce_v11_0.c         |  4 ++--
 drivers/gpu/drm/amd/amdgpu/dce_v6_0.c          |  4 ++--
 drivers/gpu/drm/amd/amdgpu/dce_v8_0.c          |  4 ++--
 6 files changed, 8 insertions(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
index 9caba10315a8..cae7479c3ecf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.c
@@ -246,22 +246,6 @@ amdgpu_connector_find_encoder(struct drm_connector
*connector,
 	return NULL;
 }
 
-struct edid *amdgpu_connector_edid(struct drm_connector *connector)
-{
-	struct amdgpu_connector *amdgpu_connector = to_amdgpu_connector(connector);
-	struct drm_property_blob *edid_blob = connector->edid_blob_ptr;
-
-	if (amdgpu_connector->edid) {
-		return amdgpu_connector->edid;
-	} else if (edid_blob) {
-		struct edid *edid = kmemdup(edid_blob->data, edid_blob->length,
GFP_KERNEL);
-
-		if (edid)
-			amdgpu_connector->edid = edid;
-	}
-	return amdgpu_connector->edid;
-}
-
 static struct edid *
 amdgpu_connector_get_hardcoded_edid(struct amdgpu_device *adev)
 {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.h
index 61fcef15ad72..eff833b6ed31 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_connectors.h
@@ -24,7 +24,6 @@
 #ifndef __AMDGPU_CONNECTORS_H__
 #define __AMDGPU_CONNECTORS_H__
 
-struct edid *amdgpu_connector_edid(struct drm_connector *connector);
 void amdgpu_connector_hotplug(struct drm_connector *connector);
 int amdgpu_connector_get_monitor_bpc(struct drm_connector *connector);
 u16 amdgpu_connector_encoder_get_dp_bridge_encoder_id(struct drm_connector
*connector);
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
index b44fce44c066..dddb5fe16f2c 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v10_0.c
@@ -1299,7 +1299,7 @@ static void
dce_v10_0_audio_write_speaker_allocation(struct drm_encoder *encoder
 		return;
 	}
 
-	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector_edid(connector),
&sadb);
+	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector->edid,
&sadb);
 	if (sad_count < 0) {
 		DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n",
sad_count);
 		sad_count = 0;
@@ -1369,7 +1369,7 @@ static void dce_v10_0_audio_write_sad_regs(struct
drm_encoder *encoder)
 		return;
 	}
 
-	sad_count = drm_edid_to_sad(amdgpu_connector_edid(connector), &sads);
+	sad_count = drm_edid_to_sad(amdgpu_connector->edid, &sads);
 	if (sad_count < 0)
 		DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
 	if (sad_count <= 0)
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
index 80b2e7f79acf..11780e4d7e9f 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v11_0.c
@@ -1331,7 +1331,7 @@ static void
dce_v11_0_audio_write_speaker_allocation(struct drm_encoder *encoder
 		return;
 	}
 
-	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector_edid(connector),
&sadb);
+	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector->edid,
&sadb);
 	if (sad_count < 0) {
 		DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n",
sad_count);
 		sad_count = 0;
@@ -1401,7 +1401,7 @@ static void dce_v11_0_audio_write_sad_regs(struct
drm_encoder *encoder)
 		return;
 	}
 
-	sad_count = drm_edid_to_sad(amdgpu_connector_edid(connector), &sads);
+	sad_count = drm_edid_to_sad(amdgpu_connector->edid, &sads);
 	if (sad_count < 0)
 		DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
 	if (sad_count <= 0)
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c
b/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c
index db20012600f5..05c0df97f01d 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v6_0.c
@@ -1217,7 +1217,7 @@ static void dce_v6_0_audio_write_speaker_allocation(struct
drm_encoder *encoder)
 		return;
 	}
 
-	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector_edid(connector),
&sadb);
+	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector->edid,
&sadb);
 	if (sad_count < 0) {
 		DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n",
sad_count);
 		sad_count = 0;
@@ -1292,7 +1292,7 @@ static void dce_v6_0_audio_write_sad_regs(struct
drm_encoder *encoder)
 		return;
 	}
 
-	sad_count = drm_edid_to_sad(amdgpu_connector_edid(connector), &sads);
+	sad_count = drm_edid_to_sad(amdgpu_connector->edid, &sads);
 	if (sad_count < 0)
 		DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
 	if (sad_count <= 0)
diff --git a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
index 5b56100ec902..dc73e301d937 100644
--- a/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/dce_v8_0.c
@@ -1272,7 +1272,7 @@ static void dce_v8_0_audio_write_speaker_allocation(struct
drm_encoder *encoder)
 		return;
 	}
 
-	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector_edid(connector),
&sadb);
+	sad_count = drm_edid_to_speaker_allocation(amdgpu_connector->edid,
&sadb);
 	if (sad_count < 0) {
 		DRM_ERROR("Couldn't read Speaker Allocation Data Block: %d\n",
sad_count);
 		sad_count = 0;
@@ -1340,7 +1340,7 @@ static void dce_v8_0_audio_write_sad_regs(struct
drm_encoder *encoder)
 		return;
 	}
 
-	sad_count = drm_edid_to_sad(amdgpu_connector_edid(connector), &sads);
+	sad_count = drm_edid_to_sad(amdgpu_connector->edid, &sads);
 	if (sad_count < 0)
 		DRM_ERROR("Couldn't read SADs: %d\n", sad_count);
 	if (sad_count <= 0)
-- 
2.39.2

Jani Nikula

2024-May-10 15:08 UTC

head link

[RESEND 5/6] drm/edid: add a helper for EDID sysfs property show

Add a helper to get the EDID property for sysfs property show. This
hides all the edid_blob_ptr usage within drm_edid.c.

Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/drm_crtc_internal.h |  2 ++
 drivers/gpu/drm/drm_edid.c          | 33 +++++++++++++++++++++++++++++
 drivers/gpu/drm/drm_sysfs.c         | 24 ++-------------------
 3 files changed, 37 insertions(+), 22 deletions(-)

diff --git a/drivers/gpu/drm/drm_crtc_internal.h
b/drivers/gpu/drm/drm_crtc_internal.h
index 25aaae937ceb..20e9d7b206a2 100644
--- a/drivers/gpu/drm/drm_crtc_internal.h
+++ b/drivers/gpu/drm/drm_crtc_internal.h
@@ -303,6 +303,8 @@ const u8 *drm_edid_find_extension(const struct drm_edid
*drm_edid,
 				  int ext_id, int *ext_index);
 void drm_edid_cta_sad_get(const struct cea_sad *cta_sad, u8 *sad);
 void drm_edid_cta_sad_set(struct cea_sad *cta_sad, const u8 *sad);
+ssize_t drm_edid_connector_property_show(struct drm_connector *connector,
+					 char *buf, loff_t off, size_t count);
 
 /* drm_edid_load.c */
 #ifdef CONFIG_DRM_LOAD_EDID_FIRMWARE
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 4f54c91b31b2..97362dd2330b 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -6969,6 +6969,39 @@ static int _drm_edid_connector_property_update(struct
drm_connector *connector,
 	return ret;
 }
 
+/* For sysfs edid show implementation */
+ssize_t drm_edid_connector_property_show(struct drm_connector *connector,
+					 char *buf, loff_t off, size_t count)
+{
+	const void *edid;
+	size_t size;
+	ssize_t ret = 0;
+
+	mutex_lock(&connector->dev->mode_config.mutex);
+
+	if (!connector->edid_blob_ptr)
+		goto unlock;
+
+	edid = connector->edid_blob_ptr->data;
+	size = connector->edid_blob_ptr->length;
+	if (!edid)
+		goto unlock;
+
+	if (off >= size)
+		goto unlock;
+
+	if (off + count > size)
+		count = size - off;
+
+	memcpy(buf, edid + off, count);
+
+	ret = count;
+unlock:
+	mutex_unlock(&connector->dev->mode_config.mutex);
+
+	return ret;
+}
+
 /**
  * drm_edid_connector_update - Update connector information from EDID
  * @connector: Connector
diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index bd9b8ab4f82b..fb3bbb6adcd1 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -266,29 +266,9 @@ static ssize_t edid_show(struct file *filp, struct kobject
*kobj,
 {
 	struct device *connector_dev = kobj_to_dev(kobj);
 	struct drm_connector *connector = to_drm_connector(connector_dev);
-	unsigned char *edid;
-	size_t size;
-	ssize_t ret = 0;
+	ssize_t ret;
 
-	mutex_lock(&connector->dev->mode_config.mutex);
-	if (!connector->edid_blob_ptr)
-		goto unlock;
-
-	edid = connector->edid_blob_ptr->data;
-	size = connector->edid_blob_ptr->length;
-	if (!edid)
-		goto unlock;
-
-	if (off >= size)
-		goto unlock;
-
-	if (off + count > size)
-		count = size - off;
-	memcpy(buf, edid + off, count);
-
-	ret = count;
-unlock:
-	mutex_unlock(&connector->dev->mode_config.mutex);
+	ret = drm_edid_connector_property_show(connector, buf, off, count);
 
 	return ret;
 }
-- 
2.39.2

Jani Nikula

2024-May-10 15:08 UTC

head link

[RESEND 6/6] drm/connector: update edid_blob_ptr documentation

Accessing the EDID via edid_blob_ptr causes chicken-and-egg
problems. Keep edid_blob_ptr as the userspace interface that should be
accessed via dedicated functions.

Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 include/drm/drm_connector.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index fe88d7fc6b8f..58ee9adf9091 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1636,8 +1636,12 @@ struct drm_connector {
 
 	/**
 	 * @edid_blob_ptr: DRM property containing EDID if present. Protected by
-	 * &drm_mode_config.mutex. This should be updated only by calling
+	 * &drm_mode_config.mutex.
+	 *
+	 * This must be updated only by calling drm_edid_connector_update() or
 	 * drm_connector_update_edid_property().
+	 *
+	 * This must not be used by drivers directly.
 	 */
 	struct drm_property_blob *edid_blob_ptr;
 
-- 
2.39.2

Alex Deucher

2024-May-10 15:45 UTC

head link

[RESEND 0/6] drm, nouveau/radeon/amdpgu: edid_blob_ptr cleanups

On Fri, May 10, 2024 at 11:17?AM Jani Nikula <jani.nikula at intel.com>
wrote:>
> I've sent this some moths ago, let's try again...
>
> BR,
> Jani.
>
> Jani Nikula (6):
>   drm/nouveau: convert to using is_hdmi and has_audio from display info
>   drm/radeon: convert to using is_hdmi and has_audio from display info
>   drm/radeon: remove radeon_connector_edid() and stop using
>     edid_blob_ptr
>   drm/amdgpu: remove amdgpu_connector_edid() and stop using
>     edid_blob_ptr
>   drm/edid: add a helper for EDID sysfs property show
>   drm/connector: update edid_blob_ptr documentation
Series is:
Acked-by: Alex Deucher <alexander.deucher at amd.com>
>
>  .../gpu/drm/amd/amdgpu/amdgpu_connectors.c    | 16 ---------
>  .../gpu/drm/amd/amdgpu/amdgpu_connectors.h    |  1 -
>  drivers/gpu/drm/amd/amdgpu/dce_v10_0.c        |  4 +--
>  drivers/gpu/drm/amd/amdgpu/dce_v11_0.c        |  4 +--
>  drivers/gpu/drm/amd/amdgpu/dce_v6_0.c         |  4 +--
>  drivers/gpu/drm/amd/amdgpu/dce_v8_0.c         |  4 +--
>  drivers/gpu/drm/drm_crtc_internal.h           |  2 ++
>  drivers/gpu/drm/drm_edid.c                    | 33 +++++++++++++++++++
>  drivers/gpu/drm/drm_sysfs.c                   | 24 ++------------
>  drivers/gpu/drm/nouveau/dispnv50/disp.c       |  8 ++---
>  drivers/gpu/drm/nouveau/dispnv50/head.c       |  8 +----
>  drivers/gpu/drm/nouveau/nouveau_connector.c   |  2 +-
>  drivers/gpu/drm/radeon/atombios_encoders.c    | 10 +++---
>  drivers/gpu/drm/radeon/evergreen_hdmi.c       |  5 ++-
>  drivers/gpu/drm/radeon/radeon_audio.c         | 13 ++++----
>  drivers/gpu/drm/radeon/radeon_connectors.c    | 27 ++++-----------
>  drivers/gpu/drm/radeon/radeon_display.c       |  2 +-
>  drivers/gpu/drm/radeon/radeon_encoders.c      |  4 +--
>  drivers/gpu/drm/radeon/radeon_mode.h          |  2 --
>  include/drm/drm_connector.h                   |  6 +++-
>  20 files changed, 79 insertions(+), 100 deletions(-)
>
> --
> 2.39.2
>

Nouveau - May 2024 - [RESEND 2/6] drm/radeon: convert to using is_hdmi and has_audio from display info

[RESEND 0/6] drm, nouveau/radeon/amdpgu: edid_blob_ptr cleanups

[RESEND 1/6] drm/nouveau: convert to using is_hdmi and has_audio from display info

[RESEND 2/6] drm/radeon: convert to using is_hdmi and has_audio from display info

[RESEND 3/6] drm/radeon: remove radeon_connector_edid() and stop using edid_blob_ptr

[RESEND 4/6] drm/amdgpu: remove amdgpu_connector_edid() and stop using edid_blob_ptr

[RESEND 5/6] drm/edid: add a helper for EDID sysfs property show

[RESEND 6/6] drm/connector: update edid_blob_ptr documentation

[RESEND 0/6] drm, nouveau/radeon/amdpgu: edid_blob_ptr cleanups