drm/amdgpu/smu11: add support for SMU AC/DC interrupts

Driver needs to send the ack message when it receives the
AC/DC interrupt from the SMU.

TODO: verify the client and src ids.

Bug: https://gitlab.freedesktop.org/drm/amd/issues/1043
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index 20174bed11ce43cf68eda2728fffef79ddb107c3..d19e1d0d56c0a3055ee0eefc8f36e6e4198ed752 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -1525,6 +1525,13 @@ int smu_v11_0_set_xgmi_pstate(struct smu_context *smu,
        return ret;
 }
 
+static int smu_v11_0_ack_ac_dc_interrupt(struct smu_context *smu)
+{
+       return smu_send_smc_msg(smu,
+                               SMU_MSG_ReenableAcDcInterrupt,
+                               NULL);
+}
+
 #define THM_11_0__SRCID__THM_DIG_THERM_L2H             0               /* ASIC_TEMP > CG_THERMAL_INT.DIG_THERM_INTH  */
 #define THM_11_0__SRCID__THM_DIG_THERM_H2L             1               /* ASIC_TEMP < CG_THERMAL_INT.DIG_THERM_INTL  */
 
@@ -1558,6 +1565,9 @@ static int smu_v11_0_irq_process(struct amdgpu_device *adev,
                break;
 
                }
+       } else if (client_id == SOC15_IH_CLIENTID_MP1) {
+               if (src_id == 0xfe)
+                       smu_v11_0_ack_ac_dc_interrupt(&adev->smu);
        }
 
        return 0;
@@ -1597,6 +1607,12 @@ int smu_v11_0_register_irq_handler(struct smu_context *smu)
        if (ret)
                return ret;
 
+       ret = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_MP1,
+                               0xfe,
+                               irq_src);
+       if (ret)
+               return ret;
+
        return ret;
 }