diff options
| author | Wenjing Liu <wenjing.liu@amd.com> | 2025-10-02 11:02:39 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-10-20 18:24:53 -0400 |
| commit | 8c6a0234739e33c8be8830c2eee13a49acfd59ea (patch) | |
| tree | dfd6b3c78f4675f6fe910999ee251cb82d6d1910 /drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c | |
| parent | bf95cf7f7a06850648169bfbe7935073f35f6414 (diff) | |
drm/amd/display: add additional hdcp traces
[why]
Current hdcp trace only tracks hdcp errors. We need to expand the trace
structure for more tracing information.
[how]
Add following traces for hdcp1:
- attempt_count
- downstream_device_count
Add following traces for hdcp2:
- attempt_count
- downstream_device_count
- hdcp1_device_downstream
- hdcp2_legacy_device_downstream
Reviewed-by: Sung Lee <sung.lee@amd.com>
Signed-off-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c index bb8ae80b37f8..5628f0ef73fd 100644 --- a/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c +++ b/drivers/gpu/drm/amd/display/modules/hdcp/hdcp2_execution.c @@ -48,6 +48,7 @@ static inline enum mod_hdcp_status check_receiver_id_list_ready(struct mod_hdcp static inline enum mod_hdcp_status check_hdcp2_capable(struct mod_hdcp *hdcp) { enum mod_hdcp_status status; + struct mod_hdcp_trace *trace = &hdcp->connection.trace; if (is_dp_hdcp(hdcp)) status = (hdcp->auth.msg.hdcp2.rxcaps_dp[0] == HDCP_2_2_RX_CAPS_VERSION_VAL) && @@ -55,9 +56,14 @@ static inline enum mod_hdcp_status check_hdcp2_capable(struct mod_hdcp *hdcp) MOD_HDCP_STATUS_SUCCESS : MOD_HDCP_STATUS_HDCP2_NOT_CAPABLE; else - status = (hdcp->auth.msg.hdcp2.hdcp2version_hdmi & HDCP_2_2_HDMI_SUPPORT_MASK) ? - MOD_HDCP_STATUS_SUCCESS : - MOD_HDCP_STATUS_HDCP2_NOT_CAPABLE; + status = (hdcp->auth.msg.hdcp2.hdcp2version_hdmi + & HDCP_2_2_HDMI_SUPPORT_MASK) + ? MOD_HDCP_STATUS_SUCCESS + : MOD_HDCP_STATUS_HDCP2_NOT_CAPABLE; + + if (status == MOD_HDCP_STATUS_SUCCESS) + trace->hdcp2.attempt_count++; + return status; } @@ -201,10 +207,17 @@ static inline uint8_t get_device_count(struct mod_hdcp *hdcp) static enum mod_hdcp_status check_device_count(struct mod_hdcp *hdcp) { + struct mod_hdcp_trace *trace = &hdcp->connection.trace; + /* Avoid device count == 0 to do authentication */ if (get_device_count(hdcp) == 0) return MOD_HDCP_STATUS_HDCP1_DEVICE_COUNT_MISMATCH_FAILURE; + trace->hdcp2.downstream_device_count = get_device_count(hdcp); + trace->hdcp2.hdcp1_device_downstream = + HDCP_2_2_HDCP1_DEVICE_CONNECTED(hdcp->auth.msg.hdcp2.rx_id_list[2]); + trace->hdcp2.hdcp2_legacy_device_downstream = + HDCP_2_2_HDCP_2_0_REP_CONNECTED(hdcp->auth.msg.hdcp2.rx_id_list[2]); /* Some MST display may choose to report the internal panel as an HDCP RX. */ /* To update this condition with 1(because the immediate repeater's internal */ /* panel is possibly not included in DEVICE_COUNT) + get_device_count(hdcp). */ |