This is a note to let you know that I've just added the patch titled
drm/amd/display: phase3 mst hdcp for multiple displays
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amd-display-phase3-mst-hdcp-for-multiple-display.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit af6c9c55603de49db0911abfa75b62f41e7f9caa
Author: hersen wu <hersenxs.wu@xxxxxxx>
Date: Tue Nov 15 14:20:56 2022 -0500
drm/amd/display: phase3 mst hdcp for multiple displays
[ Upstream commit e8fd3eeb5e8711af39b00642da06474e52f4780c ]
[Why]
multiple display hdcp are enabled within event_property_validate,
event_property_update by looping all displays on mst hub. when
one of display on mst hub in unplugged or disabled, hdcp are
disabled for all displays on mst hub within hdcp_reset_display
by looping all displays of mst link. for displays still active,
their encryption status are off. kernel driver will not run hdcp
authentication again. therefore, hdcp are not enabled automatically.
[How]
within is_content_protection_different, check drm_crtc_state changes
of all displays on mst hub, if need, triger hdcp_update_display to
re-run hdcp authentication.
Acked-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
Signed-off-by: hersen wu <hersenxs.wu@xxxxxxx>
Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Stable-dep-of: cdff36a0217a ("drm/amd/display: fix access hdcp_workqueue assert")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
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 41be9606726e9..65f9e7012f6c4 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -8566,27 +8566,55 @@ is_scaling_state_different(const struct dm_connector_state *dm_state,
}
#ifdef CONFIG_DRM_AMD_DC_HDCP
-static bool is_content_protection_different(struct drm_connector_state *state,
- const struct drm_connector_state *old_state,
- const struct drm_connector *connector, struct hdcp_workqueue *hdcp_w)
+static bool is_content_protection_different(struct drm_crtc_state *new_crtc_state,
+ struct drm_crtc_state *old_crtc_state,
+ struct drm_connector_state *new_conn_state,
+ struct drm_connector_state *old_conn_state,
+ const struct drm_connector *connector,
+ struct hdcp_workqueue *hdcp_w)
{
struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
struct dm_connector_state *dm_con_state = to_dm_connector_state(connector->state);
- /* Handle: Type0/1 change */
- if (old_state->hdcp_content_type != state->hdcp_content_type &&
- state->content_protection != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) {
- state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
+ pr_debug("[HDCP_DM] connector->index: %x connect_status: %x dpms: %x\n",
+ connector->index, connector->status, connector->dpms);
+ pr_debug("[HDCP_DM] state protection old: %x new: %x\n",
+ old_conn_state->content_protection, new_conn_state->content_protection);
+
+ if (old_crtc_state)
+ pr_debug("[HDCP_DM] old crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n",
+ old_crtc_state->enable,
+ old_crtc_state->active,
+ old_crtc_state->mode_changed,
+ old_crtc_state->active_changed,
+ old_crtc_state->connectors_changed);
+
+ if (new_crtc_state)
+ pr_debug("[HDCP_DM] NEW crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n",
+ new_crtc_state->enable,
+ new_crtc_state->active,
+ new_crtc_state->mode_changed,
+ new_crtc_state->active_changed,
+ new_crtc_state->connectors_changed);
+
+ /* hdcp content type change */
+ if (old_conn_state->hdcp_content_type != new_conn_state->hdcp_content_type &&
+ new_conn_state->content_protection != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) {
+ new_conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
+ pr_debug("[HDCP_DM] Type0/1 change %s :true\n", __func__);
return true;
}
- /* CP is being re enabled, ignore this
- *
- * Handles: ENABLED -> DESIRED
- */
- if (old_state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED &&
- state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED) {
- state->content_protection = DRM_MODE_CONTENT_PROTECTION_ENABLED;
+ /* CP is being re enabled, ignore this */
+ if (old_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED &&
+ new_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED) {
+ if (new_crtc_state && new_crtc_state->mode_changed) {
+ new_conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
+ pr_debug("[HDCP_DM] ENABLED->DESIRED & mode_changed %s :true\n", __func__);
+ return true;
+ };
+ new_conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_ENABLED;
+ pr_debug("[HDCP_DM] ENABLED -> DESIRED %s :false\n", __func__);
return false;
}
@@ -8594,9 +8622,9 @@ static bool is_content_protection_different(struct drm_connector_state *state,
*
* Handles: UNDESIRED -> ENABLED
*/
- if (old_state->content_protection == DRM_MODE_CONTENT_PROTECTION_UNDESIRED &&
- state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED)
- state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
+ if (old_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_UNDESIRED &&
+ new_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_ENABLED)
+ new_conn_state->content_protection = DRM_MODE_CONTENT_PROTECTION_DESIRED;
/* Stream removed and re-enabled
*
@@ -8606,10 +8634,12 @@ static bool is_content_protection_different(struct drm_connector_state *state,
*
* Handles: DESIRED -> DESIRED (Special case)
*/
- if (!(old_state->crtc && old_state->crtc->enabled) &&
- state->crtc && state->crtc->enabled &&
+ if (!(old_conn_state->crtc && old_conn_state->crtc->enabled) &&
+ new_conn_state->crtc && new_conn_state->crtc->enabled &&
connector->state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED) {
dm_con_state->update_hdcp = false;
+ pr_debug("[HDCP_DM] DESIRED->DESIRED (Stream removed and re-enabled) %s :true\n",
+ __func__);
return true;
}
@@ -8621,35 +8651,42 @@ static bool is_content_protection_different(struct drm_connector_state *state,
*
* Handles: DESIRED -> DESIRED (Special case)
*/
- if (dm_con_state->update_hdcp && state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED &&
- connector->dpms == DRM_MODE_DPMS_ON && aconnector->dc_sink != NULL) {
+ if (dm_con_state->update_hdcp &&
+ new_conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED &&
+ connector->dpms == DRM_MODE_DPMS_ON && aconnector->dc_sink != NULL) {
dm_con_state->update_hdcp = false;
+ pr_debug("[HDCP_DM] DESIRED->DESIRED (Hot-plug, headless s3, dpms) %s :true\n",
+ __func__);
return true;
}
- /*
- * Handles: UNDESIRED -> UNDESIRED
- * DESIRED -> DESIRED
- * ENABLED -> ENABLED
- */
- if (old_state->content_protection == state->content_protection)
+ if (old_conn_state->content_protection == new_conn_state->content_protection) {
+ if (new_conn_state->content_protection >= DRM_MODE_CONTENT_PROTECTION_DESIRED) {
+ if (new_crtc_state && new_crtc_state->mode_changed) {
+ pr_debug("[HDCP_DM] DESIRED->DESIRED or ENABLE->ENABLE mode_change %s :true\n",
+ __func__);
+ return true;
+ };
+ pr_debug("[HDCP_DM] DESIRED->DESIRED & ENABLE->ENABLE %s :false\n",
+ __func__);
+ return false;
+ };
+
+ pr_debug("[HDCP_DM] UNDESIRED->UNDESIRED %s :false\n", __func__);
return false;
+ }
- /*
- * Handles: UNDESIRED -> DESIRED
- * DESIRED -> UNDESIRED
- * ENABLED -> UNDESIRED
- */
- if (state->content_protection != DRM_MODE_CONTENT_PROTECTION_ENABLED)
+ if (new_conn_state->content_protection != DRM_MODE_CONTENT_PROTECTION_ENABLED) {
+ pr_debug("[HDCP_DM] UNDESIRED->DESIRED or DESIRED->UNDESIRED or ENABLED->UNDESIRED %s :true\n",
+ __func__);
return true;
+ }
- /*
- * Handles: DESIRED -> ENABLED
- */
+ pr_debug("[HDCP_DM] DESIRED->ENABLED %s :false\n", __func__);
return false;
}
-
#endif
+
static void remove_stream(struct amdgpu_device *adev,
struct amdgpu_crtc *acrtc,
struct dc_stream_state *stream)
@@ -9592,15 +9629,66 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
}
}
#ifdef CONFIG_DRM_AMD_DC_HDCP
+ for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
+ struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
+ struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
+ struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
+
+ pr_debug("[HDCP_DM] -------------- i : %x ----------\n", i);
+
+ if (!connector)
+ continue;
+
+ pr_debug("[HDCP_DM] connector->index: %x connect_status: %x dpms: %x\n",
+ connector->index, connector->status, connector->dpms);
+ pr_debug("[HDCP_DM] state protection old: %x new: %x\n",
+ old_con_state->content_protection, new_con_state->content_protection);
+
+ if (aconnector->dc_sink) {
+ if (aconnector->dc_sink->sink_signal != SIGNAL_TYPE_VIRTUAL &&
+ aconnector->dc_sink->sink_signal != SIGNAL_TYPE_NONE) {
+ pr_debug("[HDCP_DM] pipe_ctx dispname=%s\n",
+ aconnector->dc_sink->edid_caps.display_name);
+ }
+ }
+
+ new_crtc_state = NULL;
+ old_crtc_state = NULL;
+
+ if (acrtc) {
+ new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
+ old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base);
+ }
+
+ if (old_crtc_state)
+ pr_debug("old crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n",
+ old_crtc_state->enable,
+ old_crtc_state->active,
+ old_crtc_state->mode_changed,
+ old_crtc_state->active_changed,
+ old_crtc_state->connectors_changed);
+
+ if (new_crtc_state)
+ pr_debug("NEW crtc en: %x a: %x m: %x a-chg: %x c-chg: %x\n",
+ new_crtc_state->enable,
+ new_crtc_state->active,
+ new_crtc_state->mode_changed,
+ new_crtc_state->active_changed,
+ new_crtc_state->connectors_changed);
+ }
+
for_each_oldnew_connector_in_state(state, connector, old_con_state, new_con_state, i) {
struct dm_connector_state *dm_new_con_state = to_dm_connector_state(new_con_state);
struct amdgpu_crtc *acrtc = to_amdgpu_crtc(dm_new_con_state->base.crtc);
struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);
new_crtc_state = NULL;
+ old_crtc_state = NULL;
- if (acrtc)
+ if (acrtc) {
new_crtc_state = drm_atomic_get_new_crtc_state(state, &acrtc->base);
+ old_crtc_state = drm_atomic_get_old_crtc_state(state, &acrtc->base);
+ }
dm_new_crtc_state = to_dm_crtc_state(new_crtc_state);
@@ -9612,7 +9700,8 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
continue;
}
- if (is_content_protection_different(new_con_state, old_con_state, connector, adev->dm.hdcp_workqueue)) {
+ if (is_content_protection_different(new_crtc_state, old_crtc_state, new_con_state,
+ old_con_state, connector, adev->dm.hdcp_workqueue)) {
/* when display is unplugged from mst hub, connctor will
* be destroyed within dm_dp_mst_connector_destroy. connector
* hdcp perperties, like type, undesired, desired, enabled,
@@ -9622,6 +9711,11 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
* will be retrieved from hdcp_work within dm_dp_mst_get_modes
*/
+ bool enable_encryption = false;
+
+ if (new_con_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED)
+ enable_encryption = true;
+
if (aconnector->dc_link && aconnector->dc_sink &&
aconnector->dc_link->type == dc_connection_mst_branch) {
struct hdcp_workqueue *hdcp_work = adev->dm.hdcp_workqueue;
@@ -9634,11 +9728,16 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
new_con_state->content_protection;
}
+ if (new_crtc_state && new_crtc_state->mode_changed &&
+ new_con_state->content_protection >= DRM_MODE_CONTENT_PROTECTION_DESIRED)
+ enable_encryption = true;
+
+ DRM_INFO("[HDCP_DM] hdcp_update_display enable_encryption = %x\n", enable_encryption);
+
hdcp_update_display(
adev->dm.hdcp_workqueue, aconnector->dc_link->link_index, aconnector,
- new_con_state->hdcp_content_type,
- new_con_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED);
- }
+ new_con_state->hdcp_content_type, enable_encryption);
+ }
}
#endif
