[AMD Official Use Only - AMD Internal Distribution Only]
Reviewed-by: Yang Wang <kevinyang.wang@xxxxxxx>
Best Regards,
Kevin
-----Original Message-----
From: Kenneth Feng <kenneth.feng@xxxxxxx>
Sent: Thursday, February 27, 2025 10:16
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Wang, Yang(Kevin) <KevinYang.Wang@xxxxxxx>; Feng, Kenneth <Kenneth.Feng@xxxxxxx>
Subject: [PATCH] drm/amd/pm: add fan abnormal detection
add fan abnormal detection on smu v14.0.2&smu v14.0.3
Signed-off-by: Kenneth Feng <kenneth.feng@xxxxxxx>
---
.../gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c | 52 +++++++++++++++++++
1 file changed, 52 insertions(+)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c
index adbb6332376e..14a5760082b8 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu14/smu_v14_0.c
@@ -950,6 +950,14 @@ static int smu_v14_0_irq_process(struct amdgpu_device *adev,
uint32_t client_id = entry->client_id;
uint32_t src_id = entry->src_id;
+ /*
+ * ctxid is used to distinguish different
+ * events for SMCToHost interrupt.
+ */
+ uint32_t ctxid = entry->src_data[0];
+ uint32_t data;
+ uint32_t high;
+
if (client_id == SOC15_IH_CLIENTID_THM) {
switch (src_id) {
case THM_11_0__SRCID__THM_DIG_THERM_L2H:
@@ -964,6 +972,50 @@ static int smu_v14_0_irq_process(struct amdgpu_device *adev,
src_id);
break;
}
+ } else if (client_id == SOC15_IH_CLIENTID_MP1) {
+ if (src_id == SMU_IH_INTERRUPT_ID_TO_DRIVER) {
+ /* ACK SMUToHost interrupt */
+ data = RREG32_SOC15(MP1, 0, regMP1_SMN_IH_SW_INT_CTRL);
+ data = REG_SET_FIELD(data, MP1_SMN_IH_SW_INT_CTRL, INT_ACK, 1);
+ WREG32_SOC15(MP1, 0, regMP1_SMN_IH_SW_INT_CTRL, data);
+
+ switch (ctxid) {
+ case SMU_IH_INTERRUPT_CONTEXT_ID_FAN_ABNORMAL:
+ high = smu->thermal_range.software_shutdown_temp +
+ smu->thermal_range.software_shutdown_temp_offset;
+ high = min_t(typeof(high),
+ SMU_THERMAL_MAXIMUM_ALERT_TEMP,
+ high);
+ dev_emerg(adev->dev, "Reduce soft CTF limit to %d (by an offset %d)\n",
+ high,
+ smu->thermal_range.software_shutdown_temp_offset);
+
+ data = RREG32_SOC15(THM, 0, regTHM_THERMAL_INT_CTRL);
+ data = REG_SET_FIELD(data, THM_THERMAL_INT_CTRL,
+ DIG_THERM_INTH,
+ (high & 0xff));
+ data = data & (~THM_THERMAL_INT_CTRL__THERM_TRIGGER_MASK_MASK);
+ WREG32_SOC15(THM, 0, regTHM_THERMAL_INT_CTRL, data);
+ break;
+ case SMU_IH_INTERRUPT_CONTEXT_ID_FAN_RECOVERY:
+ high = min_t(typeof(high),
+ SMU_THERMAL_MAXIMUM_ALERT_TEMP,
+ smu->thermal_range.software_shutdown_temp);
+ dev_emerg(adev->dev, "Recover soft CTF limit to %d\n", high);
+
+ data = RREG32_SOC15(THM, 0, regTHM_THERMAL_INT_CTRL);
+ data = REG_SET_FIELD(data, THM_THERMAL_INT_CTRL,
+ DIG_THERM_INTH,
+ (high & 0xff));
+ data = data & (~THM_THERMAL_INT_CTRL__THERM_TRIGGER_MASK_MASK);
+ WREG32_SOC15(THM, 0, regTHM_THERMAL_INT_CTRL, data);
+ break;
+ default:
+ dev_dbg(adev->dev, "Unhandled context id %d from client:%d!\n",
+ ctxid, client_id);
+ break;
+ }
+ }
}
return 0;
--
2.34.1
