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>

diff --git a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
index 67980f50d8ecd5cfd1381137412826b01f00bc69..5c1b2d7abcaa4ffef26a7335c19bd28f63606ab2 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
@@ -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)

diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
index bac7e13dc801ef4d31248118a3ae0da11e3cdb53..1223d298c03fe32f77923272d4835b868ff4cae6 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -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);

diff --git a/drivers/gpu/drm/amd/powerplay/smu_internal.h b/drivers/gpu/drm/amd/powerplay/smu_internal.h
index c97444841abcb40e6dd544fe87affc383391e2b0..6b627d6e80b1bfdde4cfac50eefed710998782cd 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/smu_internal.h
+++ b/drivers/gpu/drm/amd/powerplay/smu_internal.h
@@ -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