[PATCH 026/207] drm/amd/powerplay: add support to set performance level for sienna_cichlid

[Alex Deucher]

From: Likun Gao <Likun.Gao at amd.com>

Support for performance level set for sienna_cichlid.
Set standard performance level not fully support, will set to auto
performance level.
Set peak performance level not fully support, will do nothing with it.
Force clk level only support for 2 level for fine grained DPM.

Signed-off-by: Likun Gao <Likun.Gao at amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 .../drm/amd/powerplay/sienna_cichlid_ppt.c    | 83 +++++++++++++++++++
 1 file changed, 83 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c
index e034dcd25c70..4aa174117af3 100644
--- a/drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c
@@ -552,6 +552,12 @@ static int sienna_cichlid_force_clk_levels(struct smu_context *smu,
 	case SMU_UCLK:
 	case SMU_DCEFCLK:
 	case SMU_FCLK:
+		/* There is only 2 levels for fine grained DPM */
+		if (sienna_cichlid_is_support_fine_grained_dpm(smu, clk_type)) {
+			soft_max_level = (soft_max_level >= 1 ? 1 : 0);
+			soft_min_level = (soft_min_level >= 1 ? 1 : 0);
+		}
+
 		ret = smu_get_dpm_freq_by_index(smu, clk_type, soft_min_level, &min_freq);
 		if (ret)
 			return size;
@@ -1238,6 +1244,82 @@ static int sienna_cichlid_get_uclk_dpm_states(struct smu_context *smu, uint32_t
 	return 0;
 }
 
+static int sienna_cichlid_set_performance_level(struct smu_context *smu,
+					enum amd_dpm_forced_level level);
+
+static int sienna_cichlid_set_standard_performance_level(struct smu_context *smu)
+{
+	struct amdgpu_device *adev = smu->adev;
+	int ret = 0;
+	uint32_t sclk_freq = 0, uclk_freq = 0;
+
+	switch (adev->asic_type) {
+	/* TODO: need to set specify clk value by asic type, not support yet*/
+	default:
+		/* by default, this is same as auto performance level */
+		return sienna_cichlid_set_performance_level(smu, AMD_DPM_FORCED_LEVEL_AUTO);
+	}
+
+	ret = smu_set_soft_freq_range(smu, SMU_SCLK, sclk_freq, sclk_freq, false);
+	if (ret)
+		return ret;
+	ret = smu_set_soft_freq_range(smu, SMU_UCLK, uclk_freq, uclk_freq, false);
+	if (ret)
+		return ret;
+
+	return ret;
+}
+
+static int sienna_cichlid_set_peak_performance_level(struct smu_context *smu)
+{
+	int ret = 0;
+
+	/* TODO: not support yet*/
+	return ret;
+}
+
+static int sienna_cichlid_set_performance_level(struct smu_context *smu,
+					enum amd_dpm_forced_level level)
+{
+	int ret = 0;
+	uint32_t sclk_mask, mclk_mask, soc_mask;
+
+	switch (level) {
+	case AMD_DPM_FORCED_LEVEL_HIGH:
+		ret = smu_force_dpm_limit_value(smu, true);
+		break;
+	case AMD_DPM_FORCED_LEVEL_LOW:
+		ret = smu_force_dpm_limit_value(smu, false);
+		break;
+	case AMD_DPM_FORCED_LEVEL_AUTO:
+		ret = smu_unforce_dpm_levels(smu);
+		break;
+	case AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD:
+		ret = sienna_cichlid_set_standard_performance_level(smu);
+		break;
+	case AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK:
+	case AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK:
+		ret = smu_get_profiling_clk_mask(smu, level,
+						 &sclk_mask,
+						 &mclk_mask,
+						 &soc_mask);
+		if (ret)
+			return ret;
+		smu_force_clk_levels(smu, SMU_SCLK, 1 << sclk_mask, false);
+		smu_force_clk_levels(smu, SMU_MCLK, 1 << mclk_mask, false);
+		smu_force_clk_levels(smu, SMU_SOCCLK, 1 << soc_mask, false);
+		break;
+	case AMD_DPM_FORCED_LEVEL_PROFILE_PEAK:
+		ret = sienna_cichlid_set_peak_performance_level(smu);
+		break;
+	case AMD_DPM_FORCED_LEVEL_MANUAL:
+	case AMD_DPM_FORCED_LEVEL_PROFILE_EXIT:
+	default:
+		break;
+	}
+	return ret;
+}
+
 static int sienna_cichlid_get_thermal_temperature_range(struct smu_context *smu,
 						struct smu_temperature_range *range)
 {
@@ -2019,6 +2101,7 @@ static const struct pptable_funcs sienna_cichlid_ppt_funcs = {
 	.set_watermarks_table = sienna_cichlid_set_watermarks_table,
 	.read_sensor = sienna_cichlid_read_sensor,
 	.get_uclk_dpm_states = sienna_cichlid_get_uclk_dpm_states,
+	.set_performance_level = sienna_cichlid_set_performance_level,
 	.get_thermal_temperature_range = sienna_cichlid_get_thermal_temperature_range,
 	.display_disable_memory_clock_switch = sienna_cichlid_display_disable_memory_clock_switch,
 	.get_power_limit = sienna_cichlid_get_power_limit,
-- 
2.25.4