From: Harry Wentland <harry.wentland@xxxxxxx>
Don't try to operate on a drm_wb_connector as an amdgpu_dm_connector.
While dereferencing aconnector->base will "work" it's wrong and
might lead to unknown bad things. Just... don't.
Reviewed-by: Alex Hung <alex.hung@xxxxxxx>
Signed-off-by: Harry Wentland <harry.wentland@xxxxxxx>
Signed-off-by: Roman Li <roman.li@xxxxxxx>
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 26 ++++++++++++-------
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h | 2 +-
.../display/amdgpu_dm/amdgpu_dm_mst_types.c | 6 ++---
3 files changed, 20 insertions(+), 14 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 b26ae1dd1fd7..b1b5f352b9aa 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -7448,12 +7448,12 @@ static enum dc_status dm_validate_stream_and_context(struct dc *dc,
}
struct dc_stream_state *
-create_validate_stream_for_sink(struct amdgpu_dm_connector *aconnector,
+create_validate_stream_for_sink(struct drm_connector *connector,
const struct drm_display_mode *drm_mode,
const struct dm_connector_state *dm_state,
const struct dc_stream_state *old_stream)
{
- struct drm_connector *connector = &aconnector->base;
+ struct amdgpu_dm_connector *aconnector = NULL;
struct amdgpu_device *adev = drm_to_adev(connector->dev);
struct dc_stream_state *stream;
const struct drm_connector_state *drm_state = dm_state ? &dm_state->base : NULL;
@@ -7464,8 +7464,12 @@ create_validate_stream_for_sink(struct amdgpu_dm_connector *aconnector,
if (!dm_state)
return NULL;
- if (aconnector->dc_link->connector_signal == SIGNAL_TYPE_HDMI_TYPE_A ||
- aconnector->dc_link->dpcd_caps.dongle_type == DISPLAY_DONGLE_DP_HDMI_CONVERTER)
+ if (connector->connector_type != DRM_MODE_CONNECTOR_WRITEBACK)
+ aconnector = to_amdgpu_dm_connector(connector);
+
+ if (aconnector &&
+ (aconnector->dc_link->connector_signal == SIGNAL_TYPE_HDMI_TYPE_A ||
+ aconnector->dc_link->dpcd_caps.dongle_type == DISPLAY_DONGLE_DP_HDMI_CONVERTER))
bpc_limit = 8;
do {
@@ -7477,10 +7481,11 @@ create_validate_stream_for_sink(struct amdgpu_dm_connector *aconnector,
break;
}
- if (aconnector->base.connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
+ dc_result = dc_validate_stream(adev->dm.dc, stream);
+
+ if (!aconnector) /* writeback connector */
return stream;
- dc_result = dc_validate_stream(adev->dm.dc, stream);
if (dc_result == DC_OK && stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST)
dc_result = dm_dp_mst_is_port_support_mode(aconnector, stream);
@@ -7510,7 +7515,7 @@ create_validate_stream_for_sink(struct amdgpu_dm_connector *aconnector,
__func__, __LINE__);
aconnector->force_yuv420_output = true;
- stream = create_validate_stream_for_sink(aconnector, drm_mode,
+ stream = create_validate_stream_for_sink(connector, drm_mode,
dm_state, old_stream);
aconnector->force_yuv420_output = false;
}
@@ -7525,6 +7530,9 @@ enum drm_mode_status amdgpu_dm_connector_mode_valid(struct drm_connector *connec
struct dc_sink *dc_sink;
/* TODO: Unhardcode stream count */
struct dc_stream_state *stream;
+ /* we always have an amdgpu_dm_connector here since we got
+ * here via the amdgpu_dm_connector_helper_funcs
+ */
struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
if ((mode->flags & DRM_MODE_FLAG_INTERLACE) ||
@@ -7549,7 +7557,7 @@ enum drm_mode_status amdgpu_dm_connector_mode_valid(struct drm_connector *connec
drm_mode_set_crtcinfo(mode, 0);
- stream = create_validate_stream_for_sink(aconnector, mode,
+ stream = create_validate_stream_for_sink(connector, mode,
to_dm_connector_state(connector->state),
NULL);
if (stream) {
@@ -10600,7 +10608,7 @@ static int dm_update_crtc_state(struct amdgpu_display_manager *dm,
if (!drm_atomic_crtc_needs_modeset(new_crtc_state))
goto skip_modeset;
- new_stream = create_validate_stream_for_sink(aconnector,
+ new_stream = create_validate_stream_for_sink(connector,
&new_crtc_state->mode,
dm_new_conn_state,
dm_old_crtc_state->stream);
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 ef60e80de19c..f3bc00e587ad 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
@@ -996,7 +996,7 @@ int amdgpu_dm_process_dmub_set_config_sync(struct dc_context *ctx, unsigned int
struct set_config_cmd_payload *payload, enum set_config_status *operation_result);
struct dc_stream_state *
- create_validate_stream_for_sink(struct amdgpu_dm_connector *aconnector,
+ create_validate_stream_for_sink(struct drm_connector *connector,
const struct drm_display_mode *drm_mode,
const struct dm_connector_state *dm_state,
const struct dc_stream_state *old_stream);
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 e096fb562122..0d14a0d5def3 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
@@ -1624,7 +1624,6 @@ int pre_validate_dsc(struct drm_atomic_state *state,
if (ind >= 0) {
struct drm_connector *connector;
- struct amdgpu_dm_connector *aconnector;
struct drm_connector_state *drm_new_conn_state;
struct dm_connector_state *dm_new_conn_state;
struct dm_crtc_state *dm_old_crtc_state;
@@ -1632,15 +1631,14 @@ int pre_validate_dsc(struct drm_atomic_state *state,
connector =
amdgpu_dm_find_first_crtc_matching_connector(state,
state->crtcs[ind].ptr);
- aconnector = to_amdgpu_dm_connector(connector);
drm_new_conn_state =
drm_atomic_get_new_connector_state(state,
- &aconnector->base);
+ connector);
dm_new_conn_state = to_dm_connector_state(drm_new_conn_state);
dm_old_crtc_state = to_dm_crtc_state(state->crtcs[ind].old_state);
local_dc_state->streams[i] =
- create_validate_stream_for_sink(aconnector,
+ create_validate_stream_for_sink(connector,
&state->crtcs[ind].new_state->mode,
dm_new_conn_state,
dm_old_crtc_state->stream);
--
2.34.1
