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| author | Jun Lei <Jun.Lei@amd.com> | 2018-06-22 16:51:47 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-07-16 16:11:50 -0500 |
| commit | d6e75df4e5e10362a140c5c6ce8ced3612296ae3 (patch) | |
| tree | 23083f4dda646a4b667eea2c602f44900dfec78e | |
| parent | 68199bd16cb56d121ade83918d5858933d07ae8a (diff) | |
| download | linux-d6e75df4e5e10362a140c5c6ce8ced3612296ae3.tar.bz2 | |
drm/amd/display: add new dc debug structure to track debug data
[why]
Some DTN tests still failing @ 2% Need to reduce.
[how]
add instrumentation code to driver so we can get more information from failed runs.
Signed-off-by: Jun Lei <Jun.Lei@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc.h | 5 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c index 54e396452345..701a882505e9 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c @@ -1028,6 +1028,9 @@ enum link_training_result dc_link_dp_perform_link_training( lt_settings.lane_settings[0].VOLTAGE_SWING, lt_settings.lane_settings[0].PRE_EMPHASIS); + if (status != LINK_TRAINING_SUCCESS) + link->ctx->dc->debug.debug_data.ltFailCount++; + return status; } diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 85f5ddded418..f74ad8e3fd4e 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -259,6 +259,11 @@ struct dc_debug { bool scl_reset_length10; bool hdmi20_disable; + struct { + uint32_t ltFailCount; + uint32_t i2cErrorCount; + uint32_t auxErrorCount; + } debug_data; }; struct dc_state; struct resource_pool; |