amdgpu/pm: Powerplay API for smu , changed 9 pm power functions to use API

v2: remove check for error during swsmu amdgpu_dpm_get_pp_num_states() call to match previous powerplay behaviour
v3: removed smu implementation of powerplay get_power_limit
    Resolved context clashes with other commits

Modified Files
  smu_set_power_limit()         - modifed arg0 to match Powerplay API set_power_limit
  smu_sys_get_pp_table()        - modifed signature to match Powerplay API get_pp_table
  smu_get_power_num_states()    - modifed arg0 to match Powerplay API get_pp_num_states
  smu_get_current_power_state() - modifed arg0 to match Powerplay API get_current_power_state
  smu_sys_get_pp_feature_mask() - modifed signature to match Powerplay API get_ppfeature_status
  smu_sys_set_pp_feature_mask() - modifed arg0 to match Powerplay API set_ppfeature_status

Other Changes
  added 6 above smu Powerplay functions to swsmu_dpm_funcs
  removed special smu handling of above functions and called through Powerplay API

Signed-off-by: Darren Powell <darren.powell@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

3 files changed, 58 insertions, 67 deletions

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index b8848dc051e6..2cb0ced5358d 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -123,6 +123,7 @@ static ssize_t amdgpu_get_power_dpm_state(struct device *dev,
 {
 	struct drm_device *ddev = dev_get_drvdata(dev);
 	struct amdgpu_device *adev = drm_to_adev(ddev);
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
 	enum amd_pm_state_type pm;
 	int ret;
 
@@ -135,12 +136,7 @@ static ssize_t amdgpu_get_power_dpm_state(struct device *dev,
 		return ret;
 	}
 
-	if (is_support_sw_smu(adev)) {
-		if (adev->smu.ppt_funcs->get_current_power_state)
-			pm = smu_get_current_power_state(&adev->smu);
-		else
-			pm = adev->pm.dpm.user_state;
-	} else if (adev->powerplay.pp_funcs->get_current_power_state) {
+	if (pp_funcs->get_current_power_state) {
 		pm = amdgpu_dpm_get_current_power_state(adev);
 	} else {
 		pm = adev->pm.dpm.user_state;
@@ -306,6 +302,7 @@ static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev,
 {
 	struct drm_device *ddev = dev_get_drvdata(dev);
 	struct amdgpu_device *adev = drm_to_adev(ddev);
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
 	enum amd_dpm_forced_level level;
 	enum amd_dpm_forced_level current_level = 0xff;
 	int ret = 0;
@@ -341,9 +338,7 @@ static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev,
 		return ret;
 	}
 
-	if (is_support_sw_smu(adev))
-		current_level = smu_get_performance_level(&adev->smu);
-	else if (adev->powerplay.pp_funcs->get_performance_level)
+	if (pp_funcs->get_performance_level)
 		current_level = amdgpu_dpm_get_performance_level(adev);
 
 	if (current_level == level) {
@@ -380,7 +375,7 @@ static ssize_t amdgpu_set_power_dpm_force_performance_level(struct device *dev,
 			pm_runtime_put_autosuspend(ddev->dev);
 			return -EINVAL;
 		}
-	} else if (adev->powerplay.pp_funcs->force_performance_level) {
+	} else if (pp_funcs->force_performance_level) {
 		mutex_lock(&adev->pm.mutex);
 		if (adev->pm.dpm.thermal_active) {
 			mutex_unlock(&adev->pm.mutex);
@@ -411,6 +406,7 @@ static ssize_t amdgpu_get_pp_num_states(struct device *dev,
 {
 	struct drm_device *ddev = dev_get_drvdata(dev);
 	struct amdgpu_device *adev = drm_to_adev(ddev);
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
 	struct pp_states_info data;
 	int i, buf_len, ret;
 
@@ -423,11 +419,7 @@ static ssize_t amdgpu_get_pp_num_states(struct device *dev,
 		return ret;
 	}
 
-	if (is_support_sw_smu(adev)) {
-		ret = smu_get_power_num_states(&adev->smu, &data);
-		if (ret)
-			return ret;
-	} else if (adev->powerplay.pp_funcs->get_pp_num_states) {
+	if (pp_funcs->get_pp_num_states) {
 		amdgpu_dpm_get_pp_num_states(adev, &data);
 	} else {
 		memset(&data, 0, sizeof(data));
@@ -453,8 +445,8 @@ static ssize_t amdgpu_get_pp_cur_state(struct device *dev,
 {
 	struct drm_device *ddev = dev_get_drvdata(dev);
 	struct amdgpu_device *adev = drm_to_adev(ddev);
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
 	struct pp_states_info data;
-	struct smu_context *smu = &adev->smu;
 	enum amd_pm_state_type pm = 0;
 	int i = 0, ret = 0;
 
@@ -467,13 +459,8 @@ static ssize_t amdgpu_get_pp_cur_state(struct device *dev,
 		return ret;
 	}
 
-	if (is_support_sw_smu(adev)) {
-		pm = smu_get_current_power_state(smu);
-		ret = smu_get_power_num_states(smu, &data);
-		if (ret)
-			return ret;
-	} else if (adev->powerplay.pp_funcs->get_current_power_state
-		 && adev->powerplay.pp_funcs->get_pp_num_states) {
+	if (pp_funcs->get_current_power_state
+		 && pp_funcs->get_pp_num_states) {
 		pm = amdgpu_dpm_get_current_power_state(adev);
 		amdgpu_dpm_get_pp_num_states(adev, &data);
 	}
@@ -588,13 +575,7 @@ static ssize_t amdgpu_get_pp_table(struct device *dev,
 		return ret;
 	}
 
-	if (is_support_sw_smu(adev)) {
-		size = smu_sys_get_pp_table(&adev->smu, (void **)&table);
-		pm_runtime_mark_last_busy(ddev->dev);
-		pm_runtime_put_autosuspend(ddev->dev);
-		if (size < 0)
-			return size;
-	} else if (adev->powerplay.pp_funcs->get_pp_table) {
+	if (adev->powerplay.pp_funcs->get_pp_table) {
 		size = amdgpu_dpm_get_pp_table(adev, &table);
 		pm_runtime_mark_last_busy(ddev->dev);
 		pm_runtime_put_autosuspend(ddev->dev);
@@ -1008,9 +989,7 @@ static ssize_t amdgpu_get_pp_features(struct device *dev,
 		return ret;
 	}
 
-	if (is_support_sw_smu(adev))
-		size = smu_sys_get_pp_feature_mask(&adev->smu, buf);
-	else if (adev->powerplay.pp_funcs->get_ppfeature_status)
+	if (adev->powerplay.pp_funcs->get_ppfeature_status)
 		size = amdgpu_dpm_get_ppfeature_status(adev, buf);
 	else
 		size = snprintf(buf, PAGE_SIZE, "\n");
@@ -3022,6 +3001,7 @@ static ssize_t amdgpu_hwmon_show_power_cap_max(struct device *dev,
 					 char *buf)
 {
 	struct amdgpu_device *adev = dev_get_drvdata(dev);
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
 	int limit_type = to_sensor_dev_attr(attr)->index;
 	uint32_t limit = limit_type << 24;
 	ssize_t size;
@@ -3039,8 +3019,8 @@ static ssize_t amdgpu_hwmon_show_power_cap_max(struct device *dev,
 	if (is_support_sw_smu(adev)) {
 		smu_get_power_limit(&adev->smu, &limit, SMU_PPT_LIMIT_MAX);
 		size = snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
-	} else if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->get_power_limit) {
-		adev->powerplay.pp_funcs->get_power_limit(adev->powerplay.pp_handle, &limit, true);
+	} else if (pp_funcs && pp_funcs->get_power_limit) {
+		pp_funcs->get_power_limit(adev->powerplay.pp_handle, &limit, true);
 		size = snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
 	} else {
 		size = snprintf(buf, PAGE_SIZE, "\n");
@@ -3057,6 +3037,7 @@ static ssize_t amdgpu_hwmon_show_power_cap(struct device *dev,
 					 char *buf)
 {
 	struct amdgpu_device *adev = dev_get_drvdata(dev);
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
 	int limit_type = to_sensor_dev_attr(attr)->index;
 	uint32_t limit = limit_type << 24;
 	ssize_t size;
@@ -3074,8 +3055,8 @@ static ssize_t amdgpu_hwmon_show_power_cap(struct device *dev,
 	if (is_support_sw_smu(adev)) {
 		smu_get_power_limit(&adev->smu, &limit, SMU_PPT_LIMIT_CURRENT);
 		size = snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
-	} else if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->get_power_limit) {
-		adev->powerplay.pp_funcs->get_power_limit(adev->powerplay.pp_handle, &limit, false);
+	} else if (pp_funcs && pp_funcs->get_power_limit) {
+		pp_funcs->get_power_limit(adev->powerplay.pp_handle, &limit, false);
 		size = snprintf(buf, PAGE_SIZE, "%u\n", limit * 1000000);
 	} else {
 		size = snprintf(buf, PAGE_SIZE, "\n");
@@ -3103,6 +3084,7 @@ static ssize_t amdgpu_hwmon_set_power_cap(struct device *dev,
 		size_t count)
 {
 	struct amdgpu_device *adev = dev_get_drvdata(dev);
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
 	int limit_type = to_sensor_dev_attr(attr)->index;
 	int err;
 	u32 value;
@@ -3126,10 +3108,8 @@ static ssize_t amdgpu_hwmon_set_power_cap(struct device *dev,
 		return err;
 	}
 
-	if (is_support_sw_smu(adev))
-		err = smu_set_power_limit(&adev->smu, value);
-	else if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->set_power_limit)
-		err = adev->powerplay.pp_funcs->set_power_limit(adev->powerplay.pp_handle, value);
+	if (pp_funcs && pp_funcs->set_power_limit)
+		err = pp_funcs->set_power_limit(adev->powerplay.pp_handle, value);
 	else
 		err = -EINVAL;
 
diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
index 126a9c566b66..a3413df5981b 100644
--- a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
@@ -1236,7 +1236,7 @@ int smu_get_power_limit(struct smu_context *smu,
 			uint32_t *limit,
 			enum smu_ppt_limit_level limit_level);
 
-int smu_set_power_limit(struct smu_context *smu, uint32_t limit);
+int smu_set_power_limit(void *handle, uint32_t limit);
 int smu_print_clk_levels(struct smu_context *smu, enum smu_clk_type clk_type, char *buf);
 
 int smu_od_edit_dpm_table(struct smu_context *smu,
@@ -1293,10 +1293,10 @@ extern const struct amdgpu_ip_block_version smu_v12_0_ip_block;
 bool is_support_sw_smu(struct amdgpu_device *adev);
 bool is_support_cclk_dpm(struct amdgpu_device *adev);
 int smu_reset(struct smu_context *smu);
-int smu_sys_get_pp_table(struct smu_context *smu, void **table);
+int smu_sys_get_pp_table(void *handle, char **table);
 int smu_sys_set_pp_table(struct smu_context *smu,  void *buf, size_t size);
-int smu_get_power_num_states(struct smu_context *smu, struct pp_states_info *state_info);
-enum amd_pm_state_type smu_get_current_power_state(struct smu_context *smu);
+int smu_get_power_num_states(void *handle, struct pp_states_info *state_info);
+enum amd_pm_state_type smu_get_current_power_state(void *handle);
 int smu_write_watermarks_table(struct smu_context *smu);
 int smu_set_watermarks_for_clock_ranges(
 		struct smu_context *smu,
@@ -1322,8 +1322,8 @@ enum amd_dpm_forced_level smu_get_performance_level(void *handle);
 int smu_force_performance_level(struct smu_context *smu, enum amd_dpm_forced_level level);
 int smu_set_display_count(struct smu_context *smu, uint32_t count);
 int smu_set_ac_dc(struct smu_context *smu);
-size_t smu_sys_get_pp_feature_mask(struct smu_context *smu, char *buf);
-int smu_sys_set_pp_feature_mask(struct smu_context *smu, uint64_t new_mask);
+int smu_sys_get_pp_feature_mask(void *handle, char *buf);
+int smu_sys_set_pp_feature_mask(void *handle, uint64_t new_mask);
 int smu_force_clk_levels(struct smu_context *smu,
 			 enum smu_clk_type clk_type,
 			 uint32_t mask);
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index b7fe56b9e33e..e2b885bd23a3 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -48,9 +48,10 @@
 
 static const struct amd_pm_funcs swsmu_pm_funcs;
 
-size_t smu_sys_get_pp_feature_mask(struct smu_context *smu, char *buf)
+int smu_sys_get_pp_feature_mask(void *handle, char *buf)
 {
-	size_t size = 0;
+	struct smu_context *smu = handle;
+	int size = 0;
 
 	if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
 		return -EOPNOTSUPP;
@@ -64,8 +65,9 @@ size_t smu_sys_get_pp_feature_mask(struct smu_context *smu, char *buf)
 	return size;
 }
 
-int smu_sys_set_pp_feature_mask(struct smu_context *smu, uint64_t new_mask)
+int smu_sys_set_pp_feature_mask(void *handle, uint64_t new_mask)
 {
+	struct smu_context *smu = handle;
 	int ret = 0;
 
 	if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
@@ -381,7 +383,7 @@ static void smu_restore_dpm_user_profile(struct smu_context *smu)
 	smu->user_dpm_profile.flags &= ~SMU_DPM_USER_PROFILE_RESTORE;
 }
 
-int smu_get_power_num_states(struct smu_context *smu,
+int smu_get_power_num_states(void *handle,
 			     struct pp_states_info *state_info)
 {
 	if (!state_info)
@@ -417,8 +419,9 @@ bool is_support_cclk_dpm(struct amdgpu_device *adev)
 }
 
 
-int smu_sys_get_pp_table(struct smu_context *smu, void **table)
+int smu_sys_get_pp_table(void *handle, char **table)
 {
+	struct smu_context *smu = handle;
 	struct smu_table_context *smu_table = &smu->smu_table;
 	uint32_t powerplay_table_size;
 
@@ -2085,8 +2088,9 @@ int smu_get_power_limit(struct smu_context *smu,
 	return ret;
 }
 
-int smu_set_power_limit(struct smu_context *smu, uint32_t limit)
+int smu_set_power_limit(void *handle, uint32_t limit)
 {
+	struct smu_context *smu = handle;
 	uint32_t limit_type = limit >> 24;
 	int ret = 0;
 
@@ -2663,8 +2667,9 @@ int smu_get_uclk_dpm_states(struct smu_context *smu,
 	return ret;
 }
 
-enum amd_pm_state_type smu_get_current_power_state(struct smu_context *smu)
+enum amd_pm_state_type smu_get_current_power_state(void *handle)
 {
+	struct smu_context *smu = handle;
 	enum amd_pm_state_type pm_state = POWER_STATE_TYPE_DEFAULT;
 
 	if (!smu->pm_enabled || !smu->adev->pm.dpm_enabled)
@@ -2750,19 +2755,25 @@ int smu_gfx_state_change_set(struct smu_context *smu, uint32_t state)
 
 static const struct amd_pm_funcs swsmu_pm_funcs = {
 	/* export for sysfs */
-	.set_fan_control_mode  = smu_pp_set_fan_control_mode,
-	.get_fan_control_mode  = smu_get_fan_control_mode,
-	.set_fan_speed_percent = smu_set_fan_speed_percent,
-	.get_fan_speed_percent = smu_get_fan_speed_percent,
-	.get_performance_level = smu_get_performance_level,
-	.get_fan_speed_rpm     = smu_get_fan_speed_rpm,
-	.set_fan_speed_rpm     = smu_set_fan_speed_rpm,
-	.switch_power_profile  = smu_switch_power_profile,
+	.set_fan_control_mode    = smu_pp_set_fan_control_mode,
+	.get_fan_control_mode    = smu_get_fan_control_mode,
+	.set_fan_speed_percent   = smu_set_fan_speed_percent,
+	.get_fan_speed_percent   = smu_get_fan_speed_percent,
+	.get_performance_level   = smu_get_performance_level,
+	.get_current_power_state = smu_get_current_power_state,
+	.get_fan_speed_rpm       = smu_get_fan_speed_rpm,
+	.set_fan_speed_rpm       = smu_set_fan_speed_rpm,
+	.get_pp_num_states       = smu_get_power_num_states,
+	.get_pp_table            = smu_sys_get_pp_table,
+	.switch_power_profile    = smu_switch_power_profile,
 	/* export to amdgpu */
-	.set_mp1_state         = smu_set_mp1_state,
+	.set_power_limit         = smu_set_power_limit,
+	.set_mp1_state           = smu_set_mp1_state,
 	/* export to DC */
-	.enable_mgpu_fan_boost = smu_enable_mgpu_fan_boost,
-	.asic_reset_mode_2     = smu_mode2_reset,
-	.set_df_cstate         = smu_set_df_cstate,
-	.set_xgmi_pstate       = smu_set_xgmi_pstate,
+	.enable_mgpu_fan_boost   = smu_enable_mgpu_fan_boost,
+	.get_ppfeature_status    = smu_sys_get_pp_feature_mask,
+	.set_ppfeature_status    = smu_sys_set_pp_feature_mask,
+	.asic_reset_mode_2       = smu_mode2_reset,
+	.set_df_cstate           = smu_set_df_cstate,
+	.set_xgmi_pstate         = smu_set_xgmi_pstate,
 };