From: Rex Zhu <Rex.Zhu@amd.com>
Date: Mon, 26 Mar 2018 16:18:34 +0800
Subject: drm/amdgpu: Use dpm_enabled as dpm state flag
Git-commit: b13aa1091fb2002a6854e0401df5fc6231fbca58
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

driver will set dpm_enabled to true only when
module parameter amdgpu_dpm not equal to 0 and
smu hw initialize successfully.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c |    2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c     |    2 +-
 drivers/gpu/drm/amd/amdgpu/ci_dpm.c         |    2 +-
 drivers/gpu/drm/amd/amdgpu/kv_dpm.c         |    2 +-
 drivers/gpu/drm/amd/amdgpu/si_dpm.c         |    2 +-
 drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c       |    4 ++--
 drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c |    3 ++-
 7 files changed, 9 insertions(+), 8 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -428,7 +428,7 @@ static ssize_t amdgpu_debugfs_sensor_rea
 	if (size & 3 || *pos & 0x3)
 		return -EINVAL;
 
-	if (amdgpu_dpm == 0)
+	if (!adev->pm.dpm_enabled)
 		return -EINVAL;
 
 	/* convert offset to sensor number */
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -704,7 +704,7 @@ static int amdgpu_info_ioctl(struct drm_
 		struct pp_gpu_power query = {0};
 		int query_size = sizeof(query);
 
-		if (amdgpu_dpm == 0)
+		if (!adev->pm.dpm_enabled)
 			return -ENOENT;
 
 		switch (info->sensor_info.type) {
--- a/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/ci_dpm.c
@@ -6255,7 +6255,7 @@ static int ci_dpm_late_init(void *handle
 	int ret;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
-	if (!amdgpu_dpm)
+	if (!adev->pm.dpm_enabled)
 		return 0;
 
 	/* init the sysfs and debugfs files late */
--- a/drivers/gpu/drm/amd/amdgpu/kv_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/kv_dpm.c
@@ -2974,7 +2974,7 @@ static int kv_dpm_late_init(void *handle
 	/* powerdown unused blocks for now */
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
-	if (!amdgpu_dpm)
+	if (!adev->pm.dpm_enabled)
 		return 0;
 
 	kv_dpm_powergate_acp(adev, true);
--- a/drivers/gpu/drm/amd/amdgpu/si_dpm.c
+++ b/drivers/gpu/drm/amd/amdgpu/si_dpm.c
@@ -7580,7 +7580,7 @@ static int si_dpm_late_init(void *handle
 	int ret;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
-	if (!amdgpu_dpm)
+	if (!adev->pm.dpm_enabled)
 		return 0;
 
 	ret = si_set_temperature_range(adev);
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
@@ -688,7 +688,7 @@ static int uvd_v4_2_set_powergating_stat
 
 	if (state == AMD_PG_STATE_GATE) {
 		uvd_v4_2_stop(adev);
-		if (adev->pg_flags & AMD_PG_SUPPORT_UVD && amdgpu_dpm == 0) {
+		if (adev->pg_flags & AMD_PG_SUPPORT_UVD && !adev->pm.dpm_enabled) {
 			if (!(RREG32_SMC(ixCURRENT_PG_STATUS) &
 				CURRENT_PG_STATUS__UVD_PG_STATUS_MASK)) {
 				WREG32(mmUVD_PGFSM_CONFIG, (UVD_PGFSM_CONFIG__UVD_PGFSM_FSM_ADDR_MASK   |
@@ -699,7 +699,7 @@ static int uvd_v4_2_set_powergating_stat
 		}
 		return 0;
 	} else {
-		if (adev->pg_flags & AMD_PG_SUPPORT_UVD && amdgpu_dpm == 0) {
+		if (adev->pg_flags & AMD_PG_SUPPORT_UVD && !adev->pm.dpm_enabled) {
 			if (RREG32_SMC(ixCURRENT_PG_STATUS) &
 				CURRENT_PG_STATUS__UVD_PG_STATUS_MASK) {
 				WREG32(mmUVD_PGFSM_CONFIG, (UVD_PGFSM_CONFIG__UVD_PGFSM_FSM_ADDR_MASK   |
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
@@ -211,7 +211,6 @@ int hwmgr_hw_init(struct pp_hwmgr *hwmgr
 	    !hwmgr->pptable_func->pptable_init ||
 	    !hwmgr->hwmgr_func->backend_init) {
 		hwmgr->pm_en = false;
-		((struct amdgpu_device *)hwmgr->adev)->pm.dpm_enabled = false;
 		pr_info("dpm not supported \n");
 		return 0;
 	}
@@ -240,6 +239,8 @@ int hwmgr_hw_init(struct pp_hwmgr *hwmgr
 	if (ret)
 		goto err2;
 
+	((struct amdgpu_device *)hwmgr->adev)->pm.dpm_enabled = true;
+
 	return 0;
 err2:
 	if (hwmgr->hwmgr_func->backend_fini)