[PATCH 09/12] drm/amd/display: Switch amdgpu_dm_connector to struct drm_edid
Thomas Weißschuh
linux at weissschuh.net
Sun Aug 18 10:43:33 UTC 2024
"struct drm_edid" is the safe and recommended alternative to "struct edid".
Rename the member to make sure that no usage sites are missed,
as "struct drm_edid" has some restrictions, for example it can not be
used with kfree().
Signed-off-by: Thomas Weißschuh <linux at weissschuh.net>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 70 ++++++++++++----------
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 5 +-
.../amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 26 ++++----
3 files changed, 53 insertions(+), 48 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index bd9a1a21720e..961f4f308dc7 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -3426,7 +3426,7 @@ void amdgpu_dm_update_connector_after_detect(
aconnector->dc_sink = sink;
dc_sink_retain(aconnector->dc_sink);
amdgpu_dm_update_freesync_caps(connector,
- aconnector->edid);
+ aconnector->drm_edid);
} else {
amdgpu_dm_update_freesync_caps(connector, NULL);
if (!aconnector->dc_sink) {
@@ -3485,18 +3485,18 @@ void amdgpu_dm_update_connector_after_detect(
aconnector->dc_sink = sink;
dc_sink_retain(aconnector->dc_sink);
if (sink->dc_edid.length == 0) {
- aconnector->edid = NULL;
+ aconnector->drm_edid = NULL;
if (aconnector->dc_link->aux_mode) {
drm_dp_cec_unset_edid(
&aconnector->dm_dp_aux.aux);
}
} else {
- aconnector->edid =
- (struct edid *)sink->dc_edid.raw_edid;
+ aconnector->drm_edid = drm_edid_alloc(sink->dc_edid.raw_edid,
+ sink->dc_edid.length);
if (aconnector->dc_link->aux_mode)
drm_dp_cec_set_edid(&aconnector->dm_dp_aux.aux,
- aconnector->edid);
+ drm_edid_raw(aconnector->drm_edid));
}
if (!aconnector->timing_requested) {
@@ -3507,8 +3507,8 @@ void amdgpu_dm_update_connector_after_detect(
"failed to create aconnector->requested_timing\n");
}
- drm_connector_update_edid_property(connector, aconnector->edid);
- amdgpu_dm_update_freesync_caps(connector, aconnector->edid);
+ drm_edid_connector_update(connector, aconnector->drm_edid);
+ amdgpu_dm_update_freesync_caps(connector, aconnector->drm_edid);
update_connector_ext_caps(aconnector);
} else {
drm_dp_cec_unset_edid(&aconnector->dm_dp_aux.aux);
@@ -3517,7 +3517,7 @@ void amdgpu_dm_update_connector_after_detect(
aconnector->num_modes = 0;
dc_sink_release(aconnector->dc_sink);
aconnector->dc_sink = NULL;
- aconnector->edid = NULL;
+ aconnector->drm_edid = NULL;
kfree(aconnector->timing_requested);
aconnector->timing_requested = NULL;
/* Set CP to DESIRED if it was ENABLED, so we can re-enable it again on hotplug */
@@ -7016,7 +7016,7 @@ static void amdgpu_dm_connector_funcs_force(struct drm_connector *connector)
struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
struct dc_link *dc_link = aconnector->dc_link;
struct dc_sink *dc_em_sink = aconnector->dc_em_sink;
- struct edid *edid;
+ const struct drm_edid *drm_edid;
struct i2c_adapter *ddc;
if (dc_link && dc_link->aux_mode)
@@ -7025,23 +7025,25 @@ static void amdgpu_dm_connector_funcs_force(struct drm_connector *connector)
ddc = &aconnector->i2c->base;
/*
- * Note: drm_get_edid gets edid in the following order:
+ * Note: drm_edid_read_ddc gets edid in the following order:
* 1) override EDID if set via edid_override debugfs,
* 2) firmware EDID if set via edid_firmware module parameter
* 3) regular DDC read.
*/
- edid = drm_get_edid(connector, ddc);
- if (!edid) {
+ drm_edid = drm_edid_read_ddc(connector, ddc);
+ if (!drm_edid) {
DRM_ERROR("No EDID found on connector: %s.\n", connector->name);
return;
}
- aconnector->edid = edid;
+ aconnector->drm_edid = drm_edid;
/* Update emulated (virtual) sink's EDID */
if (dc_em_sink && dc_link) {
memset(&dc_em_sink->edid_caps, 0, sizeof(struct dc_edid_caps));
- memmove(dc_em_sink->dc_edid.raw_edid, edid, (edid->extensions + 1) * EDID_LENGTH);
+ memmove(dc_em_sink->dc_edid.raw_edid,
+ drm_edid_raw(drm_edid),
+ (drm_edid_raw(drm_edid)->extensions + 1) * EDID_LENGTH);
dm_helpers_parse_edid_caps(
dc_link,
&dc_em_sink->dc_edid,
@@ -7076,7 +7078,7 @@ static void create_eml_sink(struct amdgpu_dm_connector *aconnector)
.link = aconnector->dc_link,
.sink_signal = SIGNAL_TYPE_VIRTUAL
};
- struct edid *edid;
+ const struct drm_edid *drm_edid;
struct i2c_adapter *ddc;
if (dc_link->aux_mode)
@@ -7085,25 +7087,25 @@ static void create_eml_sink(struct amdgpu_dm_connector *aconnector)
ddc = &aconnector->i2c->base;
/*
- * Note: drm_get_edid gets edid in the following order:
+ * Note: drm_edid_read_ddc gets edid in the following order:
* 1) override EDID if set via edid_override debugfs,
* 2) firmware EDID if set via edid_firmware module parameter
* 3) regular DDC read.
*/
- edid = drm_get_edid(connector, ddc);
- if (!edid) {
+ drm_edid = drm_edid_read_ddc(connector, ddc);
+ if (!drm_edid) {
DRM_ERROR("No EDID found on connector: %s.\n", connector->name);
return;
}
- if (drm_detect_hdmi_monitor(edid))
+ if (connector->display_info.is_hdmi)
init_params.sink_signal = SIGNAL_TYPE_HDMI_TYPE_A;
- aconnector->edid = edid;
+ aconnector->drm_edid = drm_edid;
aconnector->dc_em_sink = dc_link_add_remote_sink(
aconnector->dc_link,
- edid,
+ drm_edid_raw(drm_edid),
&init_params);
if (aconnector->base.force == DRM_FORCE_ON) {
@@ -7786,16 +7788,17 @@ static void amdgpu_set_panel_orientation(struct drm_connector *connector)
}
static void amdgpu_dm_connector_ddc_get_modes(struct drm_connector *connector,
- struct edid *edid)
+ const struct drm_edid *drm_edid)
{
struct amdgpu_dm_connector *amdgpu_dm_connector =
to_amdgpu_dm_connector(connector);
- if (edid) {
+ if (drm_edid) {
/* empty probed_modes */
INIT_LIST_HEAD(&connector->probed_modes);
+ drm_edid_connector_update(connector, drm_edid);
amdgpu_dm_connector->num_modes =
- drm_add_edid_modes(connector, edid);
+ drm_edid_connector_add_modes(connector);
/* sorting the probed modes before calling function
* amdgpu_dm_get_native_mode() since EDID can have
@@ -7809,10 +7812,10 @@ static void amdgpu_dm_connector_ddc_get_modes(struct drm_connector *connector,
amdgpu_dm_get_native_mode(connector);
/* Freesync capabilities are reset by calling
- * drm_add_edid_modes() and need to be
+ * drm_connector_edid_add_modes() and need to be
* restored here.
*/
- amdgpu_dm_update_freesync_caps(connector, edid);
+ amdgpu_dm_update_freesync_caps(connector, drm_edid);
} else {
amdgpu_dm_connector->num_modes = 0;
}
@@ -7908,12 +7911,12 @@ static uint add_fs_modes(struct amdgpu_dm_connector *aconnector)
}
static void amdgpu_dm_connector_add_freesync_modes(struct drm_connector *connector,
- struct edid *edid)
+ const struct drm_edid *drm_edid)
{
struct amdgpu_dm_connector *amdgpu_dm_connector =
to_amdgpu_dm_connector(connector);
- if (!(amdgpu_freesync_vid_mode && edid))
+ if (!(amdgpu_freesync_vid_mode && drm_edid))
return;
if (amdgpu_dm_connector->max_vfreq - amdgpu_dm_connector->min_vfreq > 10)
@@ -7926,24 +7929,24 @@ static int amdgpu_dm_connector_get_modes(struct drm_connector *connector)
struct amdgpu_dm_connector *amdgpu_dm_connector =
to_amdgpu_dm_connector(connector);
struct drm_encoder *encoder;
- struct edid *edid = amdgpu_dm_connector->edid;
+ const struct drm_edid *drm_edid = amdgpu_dm_connector->drm_edid;
struct dc_link_settings *verified_link_cap =
&amdgpu_dm_connector->dc_link->verified_link_cap;
const struct dc *dc = amdgpu_dm_connector->dc_link->dc;
encoder = amdgpu_dm_connector_to_encoder(connector);
- if (!drm_edid_is_valid(edid)) {
+ if (!drm_edid_valid(drm_edid)) {
amdgpu_dm_connector->num_modes =
drm_add_modes_noedid(connector, 640, 480);
if (dc->link_srv->dp_get_encoding_format(verified_link_cap) == DP_128b_132b_ENCODING)
amdgpu_dm_connector->num_modes +=
drm_add_modes_noedid(connector, 1920, 1080);
} else {
- amdgpu_dm_connector_ddc_get_modes(connector, edid);
+ amdgpu_dm_connector_ddc_get_modes(connector, drm_edid);
if (encoder)
amdgpu_dm_connector_add_common_modes(encoder, connector);
- amdgpu_dm_connector_add_freesync_modes(connector, edid);
+ amdgpu_dm_connector_add_freesync_modes(connector, drm_edid);
}
amdgpu_dm_fbc_init(connector);
@@ -11953,12 +11956,13 @@ static int parse_hdmi_amd_vsdb(struct amdgpu_dm_connector *aconnector,
* FreeSync parameters.
*/
void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
- const struct edid *edid)
+ const struct drm_edid *drm_edid)
{
int i = 0;
const struct detailed_timing *timing;
const struct detailed_non_pixel *data;
const struct detailed_data_monitor_range *range;
+ const struct edid *edid = drm_edid_raw(drm_edid);
struct amdgpu_dm_connector *amdgpu_dm_connector =
to_amdgpu_dm_connector(connector);
struct dm_connector_state *dm_con_state = NULL;
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
index 27c0017707dd..c49cc0170fc5 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
@@ -81,6 +81,7 @@ struct amdgpu_bo;
struct dmub_srv;
struct dc_plane_state;
struct dmub_notification;
+struct drm_edid;
struct amd_vsdb_block {
unsigned char ieee_id[3];
@@ -673,7 +674,7 @@ struct amdgpu_dm_connector {
/* we need to mind the EDID between detect
and get modes due to analog/digital/tvencoder */
- struct edid *edid;
+ const struct drm_edid *drm_edid;
/* shared with amdgpu */
struct amdgpu_hpd hpd;
@@ -951,7 +952,7 @@ void dm_restore_drm_connector_state(struct drm_device *dev,
struct drm_connector *connector);
void amdgpu_dm_update_freesync_caps(struct drm_connector *connector,
- const struct edid *edid);
+ const struct drm_edid *drm_edid);
void amdgpu_dm_trigger_timing_sync(struct drm_device *dev);
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index 25e98d248c21..cd03108db28b 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -129,7 +129,7 @@ dm_dp_mst_connector_destroy(struct drm_connector *connector)
dc_sink_release(aconnector->dc_sink);
}
- kfree(aconnector->edid);
+ kfree(aconnector->drm_edid);
drm_connector_cleanup(connector);
drm_dp_mst_put_port_malloc(aconnector->mst_output_port);
@@ -182,7 +182,7 @@ amdgpu_dm_mst_connector_early_unregister(struct drm_connector *connector)
dc_sink_release(dc_sink);
aconnector->dc_sink = NULL;
- aconnector->edid = NULL;
+ aconnector->drm_edid = NULL;
aconnector->dsc_aux = NULL;
port->passthrough_aux = NULL;
}
@@ -302,12 +302,13 @@ static int dm_dp_mst_get_modes(struct drm_connector *connector)
if (!aconnector)
return drm_add_edid_modes(connector, NULL);
- if (!aconnector->edid) {
- struct edid *edid;
+ if (!aconnector->drm_edid) {
+ const struct drm_edid *drm_edid;
- edid = drm_dp_mst_get_edid(connector, &aconnector->mst_root->mst_mgr, aconnector->mst_output_port);
+ drm_edid = drm_dp_mst_edid_read(connector, &aconnector->mst_root->mst_mgr,
+ aconnector->mst_output_port);
- if (!edid) {
+ if (!drm_edid) {
amdgpu_dm_set_mst_status(&aconnector->mst_status,
MST_REMOTE_EDID, false);
@@ -344,7 +345,7 @@ static int dm_dp_mst_get_modes(struct drm_connector *connector)
return ret;
}
- aconnector->edid = edid;
+ aconnector->drm_edid = drm_edid;
amdgpu_dm_set_mst_status(&aconnector->mst_status,
MST_REMOTE_EDID, true);
}
@@ -361,7 +362,7 @@ static int dm_dp_mst_get_modes(struct drm_connector *connector)
.sink_signal = SIGNAL_TYPE_DISPLAY_PORT_MST };
dc_sink = dc_link_add_remote_sink(
aconnector->dc_link,
- aconnector->edid,
+ drm_edid_raw(aconnector->drm_edid),
&init_params);
if (!dc_sink) {
@@ -403,7 +404,7 @@ static int dm_dp_mst_get_modes(struct drm_connector *connector)
if (aconnector->dc_sink) {
amdgpu_dm_update_freesync_caps(
- connector, aconnector->edid);
+ connector, aconnector->drm_edid);
#if defined(CONFIG_DRM_AMD_DC_FP)
if (!validate_dsc_caps_on_connector(aconnector))
@@ -417,10 +418,9 @@ static int dm_dp_mst_get_modes(struct drm_connector *connector)
}
}
- drm_connector_update_edid_property(
- &aconnector->base, aconnector->edid);
+ drm_edid_connector_update(&aconnector->base, aconnector->drm_edid);
- ret = drm_add_edid_modes(connector, aconnector->edid);
+ ret = drm_edid_connector_add_modes(connector);
return ret;
}
@@ -498,7 +498,7 @@ dm_dp_mst_detect(struct drm_connector *connector,
dc_sink_release(aconnector->dc_sink);
aconnector->dc_sink = NULL;
- aconnector->edid = NULL;
+ aconnector->drm_edid = NULL;
aconnector->dsc_aux = NULL;
port->passthrough_aux = NULL;
--
2.46.0
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