diff options
| author | Stylon Wang <stylon.wang@amd.com> | 2023-06-30 11:31:58 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-08-08 00:14:08 +0300 |
| commit | 71ba6b577a353fa880b2e5c85cdd780765c51fed (patch) | |
| tree | 6b2cf8ff08160da9e40c549a673306fbd1f87645 /drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | |
| parent | f77d1a49902bc70625e3d101a16d8a687f7e97db (diff) | |
| download | linux-71ba6b577a353fa880b2e5c85cdd780765c51fed.tar.xz | |
drm/amd/display: Add interface to enable DPIA trace
[Why]
DPIA traces from DMUB is not enabled by default, which is
less convenient to debug DPIA related issues because we have
to resort to other debug tools to enable DPIA trace.
[How]
Exposes interfaces to update trace mask from the DMUB GPINT commands.
Also provides DC implementations to enable DPIA trace.
Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Stylon Wang <stylon.wang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c index 24433409d7de..8c75f7510880 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c @@ -1021,3 +1021,32 @@ bool dc_dmub_check_min_version(struct dmub_srv *srv) return true; return srv->hw_funcs.is_psrsu_supported(srv); } + +void dc_dmub_srv_enable_dpia_trace(const struct dc *dc) +{ + struct dc_dmub_srv *dc_dmub_srv = dc->ctx->dmub_srv; + struct dmub_srv *dmub; + enum dmub_status status; + static const uint32_t timeout_us = 30; + + if (!dc_dmub_srv || !dc_dmub_srv->dmub) { + DC_LOG_ERROR("%s: invalid parameters.", __func__); + return; + } + + dmub = dc_dmub_srv->dmub; + + status = dmub_srv_send_gpint_command(dmub, DMUB_GPINT__SET_TRACE_BUFFER_MASK_WORD1, 0x0010, timeout_us); + if (status != DMUB_STATUS_OK) { + DC_LOG_ERROR("timeout updating trace buffer mask word\n"); + return; + } + + status = dmub_srv_send_gpint_command(dmub, DMUB_GPINT__UPDATE_TRACE_BUFFER_MASK, 0x0000, timeout_us); + if (status != DMUB_STATUS_OK) { + DC_LOG_ERROR("timeout updating trace buffer mask word\n"); + return; + } + + DC_LOG_DEBUG("Enabled DPIA trace\n"); +}
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