drm/amd/powerplay: add profiling mode in dpm level

In some case, App need to run under max stable clock.
so export profiling mode: GFX CG was disabled.
and user can select the max stable clock of the device.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c

@@ -124,6 +124,7 @@ static ssize_t amdgpu_get_dpm_forced_performance_level(struct device *dev,
 			(level & AMD_DPM_FORCED_LEVEL_LOW) ? "low" :
 			(level & AMD_DPM_FORCED_LEVEL_HIGH) ? "high" :
 			(level & AMD_DPM_FORCED_LEVEL_MANUAL) ? "manual" :
+			(level & AMD_DPM_FORCED_LEVEL_PROFILING) ? "profiling" :
 			"unknown"));
 }
 
@@ -135,13 +136,16 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev,
 	struct drm_device *ddev = dev_get_drvdata(dev);
 	struct amdgpu_device *adev = ddev->dev_private;
 	enum amd_dpm_forced_level level;
+	enum amd_dpm_forced_level current_level;
 	int ret = 0;
 
 	/* Can't force performance level when the card is off */
 	if  ((adev->flags & AMD_IS_PX) &&
 	     (ddev->switch_power_state != DRM_SWITCH_POWER_ON))
 		return -EINVAL;
 
+	current_level = amdgpu_dpm_get_performance_level(adev);
+
 	if (strncmp("low", buf, strlen("low")) == 0) {
 		level = AMD_DPM_FORCED_LEVEL_LOW;
 	} else if (strncmp("high", buf, strlen("high")) == 0) {
@@ -150,11 +154,24 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev,
 		level = AMD_DPM_FORCED_LEVEL_AUTO;
 	} else if (strncmp("manual", buf, strlen("manual")) == 0) {
 		level = AMD_DPM_FORCED_LEVEL_MANUAL;
+	} else if (strncmp("profile", buf, strlen("profile")) == 0) {
+		level = AMD_DPM_FORCED_LEVEL_PROFILING;
 	} else {
 		count = -EINVAL;
 		goto fail;
 	}
 
+	if (current_level == level)
+		return 0;
+
+	if (level == AMD_DPM_FORCED_LEVEL_PROFILING)
+		amdgpu_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_GFX,
+						AMD_CG_STATE_UNGATE);
+	else if (level != AMD_DPM_FORCED_LEVEL_PROFILING &&
+			current_level == AMD_DPM_FORCED_LEVEL_PROFILING)
+		amdgpu_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_GFX,
+						AMD_CG_STATE_GATE);
+
 	if (adev->pp_enabled)
 		amdgpu_dpm_force_performance_level(adev, level);
 	else {

drivers/gpu/drm/amd/amdgpu/ci_dpm.c

@@ -6571,8 +6571,8 @@ static int ci_dpm_force_clock_level(struct amdgpu_device *adev,
 {
 	struct ci_power_info *pi = ci_get_pi(adev);
 
-	if (adev->pm.dpm.forced_level
-			!= AMD_DPM_FORCED_LEVEL_MANUAL)
+	if (!(adev->pm.dpm.forced_level &
+		(AMD_DPM_FORCED_LEVEL_MANUAL | AMD_DPM_FORCED_LEVEL_PROFILING)))
 		return -EINVAL;
 
 	switch (type) {

drivers/gpu/drm/amd/include/amd_shared.h

@@ -85,6 +85,7 @@ enum amd_dpm_forced_level {
 	AMD_DPM_FORCED_LEVEL_MANUAL = 0x2,
 	AMD_DPM_FORCED_LEVEL_LOW = 0x4,
 	AMD_DPM_FORCED_LEVEL_HIGH = 0x8,
+	AMD_DPM_FORCED_LEVEL_PROFILING = 0x10,
 };
 
 enum amd_powergating_state {

drivers/gpu/drm/amd/powerplay/hwmgr/cz_hwmgr.c

@@ -1644,7 +1644,8 @@ static int cz_get_dal_power_level(struct pp_hwmgr *hwmgr,
 static int cz_force_clock_level(struct pp_hwmgr *hwmgr,
 		enum pp_clock_type type, uint32_t mask)
 {
-	if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL)
+	if (!(hwmgr->dpm_level &
+		(AMD_DPM_FORCED_LEVEL_MANUAL | AMD_DPM_FORCED_LEVEL_PROFILING)))
 		return -EINVAL;
 
 	switch (type) {

drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c

@@ -4031,7 +4031,8 @@ static int smu7_force_clock_level(struct pp_hwmgr *hwmgr,
 {
 	struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
 
-	if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL)
+	if (!(hwmgr->dpm_level &
+		(AMD_DPM_FORCED_LEVEL_MANUAL | AMD_DPM_FORCED_LEVEL_PROFILING)))
 		return -EINVAL;
 
 	switch (type) {