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drm/amd/powerplay: implement ASIC specific thermal throttling logging 

Enable this for Arcturus only for now.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Evan Quan 2020-05-21 12:36:44 +08:00 committed by Alex Deucher
parent aace2a561f
commit 8c0bba6479
3 changed files with 47 additions and 0 deletions
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44
drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
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@ -2329,6 +2329,49 @@ static int arcturus_allow_xgmi_power_down(struct smu_context *smu, bool en)
NULL);
}
static const struct throttling_logging_label {
uint32_t feature_mask;
const char *label;
} logging_label[] = {
{(1U << THROTTLER_TEMP_HOTSPOT_BIT), "GPU"},
{(1U << THROTTLER_TEMP_MEM_BIT), "HBM"},
{(1U << THROTTLER_TEMP_VR_GFX_BIT), "VR of GFX rail"},
{(1U << THROTTLER_TEMP_VR_MEM_BIT), "VR of HBM rail"},
{(1U << THROTTLER_TEMP_VR_SOC_BIT), "VR of SOC rail"},
{(1U << THROTTLER_VRHOT0_BIT), "VR0 HOT"},
{(1U << THROTTLER_VRHOT1_BIT), "VR1 HOT"},
};
static void arcturus_log_thermal_throttling_event(struct smu_context *smu)
{
int throttler_idx, throtting_events = 0, buf_idx = 0;
struct amdgpu_device *adev = smu->adev;
SmuMetrics_t metrics;
char log_buf[256];
arcturus_get_metrics_table(smu, &metrics);
memset(log_buf, 0, sizeof(log_buf));
for (throttler_idx = 0; throttler_idx < ARRAY_SIZE(logging_label);
throttler_idx++) {
if (metrics.ThrottlerStatus & logging_label[throttler_idx].feature_mask) {
throtting_events++;
buf_idx += snprintf(log_buf + buf_idx,
sizeof(log_buf) - buf_idx,
"%s%s",
throtting_events > 1 ? " and " : "",
logging_label[throttler_idx].label);
if (buf_idx >= sizeof(log_buf)) {
pr_err("buffer overflow!\n");
log_buf[sizeof(log_buf) - 1] = '\0';
break;
}
}
}
dev_warn(adev->dev, "WARN: GPU thermal throttling temperature reached, expect performance decrease. %s.\n",
log_buf);
}
static const struct pptable_funcs arcturus_ppt_funcs = {
/* translate smu index into arcturus specific index */
.get_smu_msg_index = arcturus_get_smu_msg_index,
@ -2423,6 +2466,7 @@ static const struct pptable_funcs arcturus_ppt_funcs = {
.get_pptable_power_limit = arcturus_get_pptable_power_limit,
.set_df_cstate = arcturus_set_df_cstate,
.allow_xgmi_power_down = arcturus_allow_xgmi_power_down,
.log_thermal_throttling_event = arcturus_log_thermal_throttling_event,
};
void arcturus_set_ppt_funcs(struct smu_context *smu)

1
drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
View File

@ -575,6 +575,7 @@ struct pptable_funcs {
uint32_t (*get_pptable_power_limit)(struct smu_context *smu);
int (*disable_umc_cdr_12gbps_workaround)(struct smu_context *smu);
int (*set_power_source)(struct smu_context *smu, enum smu_power_src_type power_src);
void (*log_thermal_throttling_event)(struct smu_context *smu);
};
int smu_load_microcode(struct smu_context *smu);

2
drivers/gpu/drm/amd/powerplay/smu_internal.h
View File

@ -219,4 +219,6 @@ static inline int smu_send_smc_msg(struct smu_context *smu, enum smu_message_typ
#define smu_i2c_eeprom_fini(smu, control) \
((smu)->ppt_funcs->i2c_eeprom_fini ? (smu)->ppt_funcs->i2c_eeprom_fini((control)) : 0)
#define smu_log_thermal_throttling(smu) \
((smu)->ppt_funcs->log_thermal_throttling_event ? (smu)->ppt_funcs->log_thermal_throttling_event((smu)) : 0)
#endif