diff options
| author | Alvin Lee <alvin.lee2@amd.com> | 2024-03-21 18:06:06 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-04-10 05:04:32 +0300 |
| commit | c435bce6af9b2a277662698875a689c389358f17 (patch) | |
| tree | e079790eaa000380d49ea57dc677b716f6456269 /drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | |
| parent | de2d1105a3757742b45b0d8270b3c8734cd6b6f8 (diff) | |
| download | linux-c435bce6af9b2a277662698875a689c389358f17.tar.xz | |
drm/amd/display: Add extra DMUB logging to track message timeout
[Description]
- Add logging for first DMUB inbox message that timed out to diagnostic
data
- It is useful to track the first failed message for debug purposes
because once DMUB becomes hung (typically on a message), it will
remain hung and all subsequent messages. In these cases we're
interested in knowing which is the first message that failed.
Reviewed-by: Josip Pavic <josip.pavic@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: Alvin Lee <alvin.lee2@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 | 10 |
1 files changed, 9 insertions, 1 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 9ae0e602e737..34d199b08dd9 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c @@ -23,6 +23,7 @@ * */ +#include "dm_services.h" #include "dc.h" #include "dc_dmub_srv.h" #include "../dmub/dmub_srv.h" @@ -198,6 +199,11 @@ bool dc_dmub_srv_wait_for_idle(struct dc_dmub_srv *dc_dmub_srv, if (status != DMUB_STATUS_OK) { DC_LOG_DEBUG("No reply for DMUB command: status=%d\n", status); + if (!dmub->debug.timeout_occured) { + dmub->debug.timeout_occured = true; + dmub->debug.timeout_cmd = *cmd_list; + dmub->debug.timestamp = dm_get_timestamp(dc_dmub_srv->ctx); + } dc_dmub_srv_log_diagnostic_data(dc_dmub_srv); return false; } @@ -904,6 +910,7 @@ bool dc_dmub_srv_get_diagnostic_data(struct dc_dmub_srv *dc_dmub_srv, struct dmu void dc_dmub_srv_log_diagnostic_data(struct dc_dmub_srv *dc_dmub_srv) { struct dmub_diagnostic_data diag_data = {0}; + uint32_t i; if (!dc_dmub_srv || !dc_dmub_srv->dmub) { DC_LOG_ERROR("%s: invalid parameters.", __func__); @@ -935,7 +942,8 @@ void dc_dmub_srv_log_diagnostic_data(struct dc_dmub_srv *dc_dmub_srv) DC_LOG_DEBUG(" scratch [13] : %08x", diag_data.scratch[13]); DC_LOG_DEBUG(" scratch [14] : %08x", diag_data.scratch[14]); DC_LOG_DEBUG(" scratch [15] : %08x", diag_data.scratch[15]); - DC_LOG_DEBUG(" pc : %08x", diag_data.pc); + for (i = 0; i < DMUB_PC_SNAPSHOT_COUNT; i++) + DC_LOG_DEBUG(" pc[%d] : %08x", i, diag_data.pc[i]); DC_LOG_DEBUG(" unk_fault_addr : %08x", diag_data.undefined_address_fault_addr); DC_LOG_DEBUG(" inst_fault_addr : %08x", diag_data.inst_fetch_fault_addr); DC_LOG_DEBUG(" data_fault_addr : %08x", diag_data.data_write_fault_addr); |