diff options
| author | Hamza Mahfooz <hamza.mahfooz@amd.com> | 2023-11-10 00:42:32 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-11-17 17:30:49 +0300 |
| commit | c41028a2a16303e5a59e11338d6ef5475945c79d (patch) | |
| tree | e6353a876a60364e5f606dedc5e57175998dc353 /drivers/gpu/drm/amd/display/dmub | |
| parent | fcfc6ceec3ebb725a0d6381a1120e7cd546e1df4 (diff) | |
| download | linux-c41028a2a16303e5a59e11338d6ef5475945c79d.tar.xz | |
drm/amd/display: add a debugfs interface for the DMUB trace mask
For features that are implemented primarily in DMUB (e.g. PSR), it is
useful to be able to trace them at a DMUB level from the kernel,
especially when debugging issues. So, introduce a debugfs interface that
is able to read and set the DMUB trace mask dynamically at runtime and
document how to use it.
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h index ed4379c04715..aa6e6923afed 100644 --- a/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h +++ b/drivers/gpu/drm/amd/display/dmub/inc/dmub_cmd.h @@ -818,18 +818,54 @@ enum dmub_gpint_command { * RETURN: Lower 32-bit mask. */ DMUB_GPINT__UPDATE_TRACE_BUFFER_MASK = 101, + /** - * DESC: Updates the trace buffer lower 32-bit mask. + * DESC: Updates the trace buffer mask bit0~bit15. * ARGS: The new mask * RETURN: Lower 32-bit mask. */ DMUB_GPINT__SET_TRACE_BUFFER_MASK_WORD0 = 102, + /** - * DESC: Updates the trace buffer mask bi0~bit15. + * DESC: Updates the trace buffer mask bit16~bit31. * ARGS: The new mask * RETURN: Lower 32-bit mask. */ DMUB_GPINT__SET_TRACE_BUFFER_MASK_WORD1 = 103, + + /** + * DESC: Updates the trace buffer mask bit32~bit47. + * ARGS: The new mask + * RETURN: Lower 32-bit mask. + */ + DMUB_GPINT__SET_TRACE_BUFFER_MASK_WORD2 = 114, + + /** + * DESC: Updates the trace buffer mask bit48~bit63. + * ARGS: The new mask + * RETURN: Lower 32-bit mask. + */ + DMUB_GPINT__SET_TRACE_BUFFER_MASK_WORD3 = 115, + + /** + * DESC: Read the trace buffer mask bi0~bit15. + */ + DMUB_GPINT__GET_TRACE_BUFFER_MASK_WORD0 = 116, + + /** + * DESC: Read the trace buffer mask bit16~bit31. + */ + DMUB_GPINT__GET_TRACE_BUFFER_MASK_WORD1 = 117, + + /** + * DESC: Read the trace buffer mask bi32~bit47. + */ + DMUB_GPINT__GET_TRACE_BUFFER_MASK_WORD2 = 118, + + /** + * DESC: Updates the trace buffer mask bit32~bit63. + */ + DMUB_GPINT__GET_TRACE_BUFFER_MASK_WORD3 = 119, }; /** |