[PATCH 14/30] drm/amd/powerplay: support VCN powergate status retrieval on Raven

[Alex Deucher]

From: Evan Quan <evan.q...@amd.com>

Enable VCN powergate status report on Raven.

Signed-off-by: Evan Quan <evan.q...@amd.com>
Reviewed-by: Kenneth Feng <kenneth.f...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
---
 drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c 
b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
index e32ae9d3373c..18e780f566fa 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu10_hwmgr.c
@@ -1111,6 +1111,7 @@ static int smu10_thermal_get_temperature(struct pp_hwmgr 
*hwmgr)
 static int smu10_read_sensor(struct pp_hwmgr *hwmgr, int idx,
                          void *value, int *size)
 {
+       struct smu10_hwmgr *smu10_data = (struct smu10_hwmgr *)(hwmgr->backend);
        uint32_t sclk, mclk;
        int ret = 0;
 
@@ -1132,6 +1133,10 @@ static int smu10_read_sensor(struct pp_hwmgr *hwmgr, int 
idx,
        case AMDGPU_PP_SENSOR_GPU_TEMP:
                *((uint32_t *)value) = smu10_thermal_get_temperature(hwmgr);
                break;
+       case AMDGPU_PP_SENSOR_VCN_POWER_STATE:
+               *(uint32_t *)value =  smu10_data->vcn_power_gated ? 0 : 1;
+               *size = 4;
+               break;
        default:
                ret = -EINVAL;
                break;
@@ -1175,18 +1180,22 @@ static int smu10_powergate_sdma(struct pp_hwmgr *hwmgr, 
bool gate)
 
 static void smu10_powergate_vcn(struct pp_hwmgr *hwmgr, bool bgate)
 {
+       struct smu10_hwmgr *smu10_data = (struct smu10_hwmgr *)(hwmgr->backend);
+
        if (bgate) {
                amdgpu_device_ip_set_powergating_state(hwmgr->adev,
                                                AMD_IP_BLOCK_TYPE_VCN,
                                                AMD_PG_STATE_GATE);
                smum_send_msg_to_smc_with_parameter(hwmgr,
                                        PPSMC_MSG_PowerDownVcn, 0);
+               smu10_data->vcn_power_gated = true;
        } else {
                smum_send_msg_to_smc_with_parameter(hwmgr,
                                                PPSMC_MSG_PowerUpVcn, 0);
                amdgpu_device_ip_set_powergating_state(hwmgr->adev,
                                                AMD_IP_BLOCK_TYPE_VCN,
                                                AMD_PG_STATE_UNGATE);
+               smu10_data->vcn_power_gated = false;
        }
 }
 
-- 
2.20.1

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