diff options
| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2024-02-21 13:05:09 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-03-20 13:37:37 -0400 |
| commit | e4251d110154b6c4090d0188404345ded4ecefbe (patch) | |
| tree | ff90e490fad7c90c8d63db081123fe356274611b /drivers/gpu | |
| parent | 27f03bc680ef7e0f18b4cacba96f29674d93d817 (diff) | |
| download | linux-stable-e4251d110154b6c4090d0188404345ded4ecefbe.tar.gz linux-stable-e4251d110154b6c4090d0188404345ded4ecefbe.tar.bz2 linux-stable-e4251d110154b6c4090d0188404345ded4ecefbe.zip | |
drm/amd/display: Add debug counters to IPS exit prints
[WHY]
To have a log of the entry/exit counters in case the system hangs to
measure stability.
[HOW]
Read them from firmware state and pass them to the prints.
Reviewed-by: Duncan Ma <duncan.ma@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c | 18 |
1 files changed, 15 insertions, 3 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 938e8cb2fec1..765a459d54eb 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c +++ b/drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c @@ -1279,6 +1279,7 @@ static void dc_dmub_srv_notify_idle(const struct dc *dc, bool allow_idle) static void dc_dmub_srv_exit_low_power_state(const struct dc *dc) { struct dc_dmub_srv *dc_dmub_srv; + uint32_t rcg_exit_count, ips1_exit_count, ips2_exit_count; if (dc->debug.dmcub_emulation) return; @@ -1295,15 +1296,22 @@ static void dc_dmub_srv_exit_low_power_state(const struct dc *dc) &dc_dmub_srv->dmub->shared_state[DMUB_SHARED_SHARE_FEATURE__IPS_DRIVER].data.ips_driver; union dmub_shared_state_ips_driver_signals prev_driver_signals = ips_driver->signals; + rcg_exit_count = ips_fw->rcg_exit_count; + ips1_exit_count = ips_fw->ips1_exit_count; + ips2_exit_count = ips_fw->ips2_exit_count; + ips_driver->signals.all = 0; DC_LOG_IPS( - "%s check (allow_ips1=%d allow_ips2=%d) (ips1_commit=%d ips2_commit=%d)", + "%s (allow ips1=%d ips2=%d) (commit ips1=%d ips2=%d) (count rcg=%d ips1=%d ips2=%d)", __func__, ips_driver->signals.bits.allow_ips1, ips_driver->signals.bits.allow_ips2, ips_fw->signals.bits.ips1_commit, - ips_fw->signals.bits.ips2_commit); + ips_fw->signals.bits.ips2_commit, + ips_fw->rcg_entry_count, + ips_fw->ips1_entry_count, + ips_fw->ips2_entry_count); /* Note: register access has technically not resumed for DCN here, but we * need to be message PMFW through our standard register interface. @@ -1387,7 +1395,11 @@ static void dc_dmub_srv_exit_low_power_state(const struct dc *dc) if (!dc_dmub_srv_is_hw_pwr_up(dc->ctx->dmub_srv, true)) ASSERT(0); - DC_LOG_IPS("%s exited", __func__); + DC_LOG_IPS("%s exit (count rcg=%d ips1=%d ips2=%d)", + __func__, + rcg_exit_count, + ips1_exit_count, + ips2_exit_count); } void dc_dmub_srv_set_power_state(struct dc_dmub_srv *dc_dmub_srv, enum dc_acpi_cm_power_state powerState) |