drm/amd/powerplay: add function to get sclk and mclk

Add function to get sclk and mclk for smu11.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -904,3 +904,19 @@ amdgpu_get_vce_clock_state(void *handle, u32 idx)
 
 	return NULL;
 }
+
+int amdgpu_dpm_get_sclk(struct amdgpu_device *adev, bool low)
+{
+	if (is_support_sw_smu(adev))
+		return smu_get_sclk(&adev->smu, low);
+	else
+		return (adev)->powerplay.pp_funcs->get_sclk((adev)->powerplay.pp_handle, (low));
+}
+
+int amdgpu_dpm_get_mclk(struct amdgpu_device *adev, bool low)
+{
+	if (is_support_sw_smu(adev))
+		return smu_get_mclk(&adev->smu, low);
+	else
+		return (adev)->powerplay.pp_funcs->get_mclk((adev)->powerplay.pp_handle, (low));
+}

drivers/gpu/drm/amd/amdgpu/amdgpu_dpm.h

@@ -278,12 +278,6 @@ enum amdgpu_pcie_gen {
 #define amdgpu_dpm_set_fan_speed_rpm(adev, s) \
 		((adev)->powerplay.pp_funcs->set_fan_speed_rpm)((adev)->powerplay.pp_handle, (s))
 
-#define amdgpu_dpm_get_sclk(adev, l) \
-		((adev)->powerplay.pp_funcs->get_sclk((adev)->powerplay.pp_handle, (l)))
-
-#define amdgpu_dpm_get_mclk(adev, l)  \
-		((adev)->powerplay.pp_funcs->get_mclk((adev)->powerplay.pp_handle, (l)))
-
 #define amdgpu_dpm_force_performance_level(adev, l) \
 		((adev)->powerplay.pp_funcs->force_performance_level((adev)->powerplay.pp_handle, (l)))
 
@@ -509,4 +503,8 @@ enum amdgpu_pcie_gen amdgpu_get_pcie_gen_support(struct amdgpu_device *adev,
 struct amd_vce_state*
 amdgpu_get_vce_clock_state(void *handle, u32 idx);
 
+extern int amdgpu_dpm_get_sclk(struct amdgpu_device *adev, bool low);
+
+extern int amdgpu_dpm_get_mclk(struct amdgpu_device *adev, bool low);
+
 #endif

drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h

@@ -528,6 +528,8 @@ struct smu_funcs
 				   uint32_t value);
 	int (*dpm_set_uvd_enable)(struct smu_context *smu, bool enable);
 	int (*dpm_set_vce_enable)(struct smu_context *smu, bool enable);
+	uint32_t (*get_sclk)(struct smu_context *smu, bool low);
+	uint32_t (*get_mclk)(struct smu_context *smu, bool low);
 };
 
 #define smu_init_microcode(smu) \
@@ -693,6 +695,10 @@ struct smu_funcs
 	((smu)->funcs->dpm_set_uvd_enable ? (smu)->funcs->dpm_set_uvd_enable((smu), (enable)) : 0)
 #define smu_dpm_set_vce_enable(smu, enable) \
 	((smu)->funcs->dpm_set_vce_enable ? (smu)->funcs->dpm_set_vce_enable((smu), (enable)) : 0)
+#define smu_get_sclk(smu, low) \
+	((smu)->funcs->get_sclk ? (smu)->funcs->get_sclk((smu), (low)) : 0)
+#define smu_get_mclk(smu, low) \
+	((smu)->funcs->get_mclk ? (smu)->funcs->get_mclk((smu), (low)) : 0)
 
 
 extern int smu_get_atom_data_table(struct smu_context *smu, uint32_t table,

drivers/gpu/drm/amd/powerplay/smu_v11_0.c

@@ -1258,6 +1258,88 @@ smu_v11_0_set_watermarks_for_clock_ranges(struct smu_context *smu, struct
 	return ret;
 }
 
+static int smu_v11_0_get_clock_ranges(struct smu_context *smu,
+				      uint32_t *clock,
+				      PPCLK_e clock_select,
+				      bool max)
+{
+	int ret;
+	*clock = 0;
+	if (max) {
+		ret = smu_send_smc_msg_with_param(smu, SMU_MSG_GetMaxDpmFreq,
+					    (clock_select << 16));
+		if (ret) {
+			pr_err("[GetClockRanges] Failed to get max clock from SMC!\n");
+			return ret;
+		}
+		smu_read_smc_arg(smu, clock);
+	} else {
+		ret = smu_send_smc_msg_with_param(smu, SMU_MSG_GetMinDpmFreq,
+					    (clock_select << 16));
+		if (ret) {
+			pr_err("[GetClockRanges] Failed to get min clock from SMC!\n");
+			return ret;
+		}
+		smu_read_smc_arg(smu, clock);
+	}
+
+	return 0;
+}
+
+static uint32_t smu_v11_0_dpm_get_sclk(struct smu_context *smu, bool low)
+{
+	uint32_t gfx_clk;
+	int ret;
+
+	if (!smu_feature_is_enabled(smu, FEATURE_DPM_GFXCLK_BIT)) {
+		pr_err("[GetSclks]: gfxclk dpm not enabled!\n");
+		return -EPERM;
+	}
+
+	if (low) {
+		ret = smu_v11_0_get_clock_ranges(smu, &gfx_clk, PPCLK_GFXCLK, false);
+		if (ret) {
+			pr_err("[GetSclks]: fail to get min PPCLK_GFXCLK\n");
+			return ret;
+		}
+	} else {
+		ret = smu_v11_0_get_clock_ranges(smu, &gfx_clk, PPCLK_GFXCLK, true);
+		if (ret) {
+			pr_err("[GetSclks]: fail to get max PPCLK_GFXCLK\n");
+			return ret;
+		}
+	}
+
+	return (gfx_clk * 100);
+}
+
+static uint32_t smu_v11_0_dpm_get_mclk(struct smu_context *smu, bool low)
+{
+	uint32_t mem_clk;
+	int ret;
+
+	if (!smu_feature_is_enabled(smu, FEATURE_DPM_UCLK_BIT)) {
+		pr_err("[GetMclks]: memclk dpm not enabled!\n");
+		return -EPERM;
+	}
+
+	if (low) {
+		ret = smu_v11_0_get_clock_ranges(smu, &mem_clk, PPCLK_UCLK, false);
+		if (ret) {
+			pr_err("[GetMclks]: fail to get min PPCLK_UCLK\n");
+			return ret;
+		}
+	} else {
+		ret = smu_v11_0_get_clock_ranges(smu, &mem_clk, PPCLK_GFXCLK, true);
+		if (ret) {
+			pr_err("[GetMclks]: fail to get max PPCLK_UCLK\n");
+			return ret;
+		}
+	}
+
+	return (mem_clk * 100);
+}
+
 static int smu_v11_0_set_od8_default_settings(struct smu_context *smu)
 {
 	struct smu_table_context *table_context = &smu->smu_table;
@@ -1658,6 +1740,8 @@ static const struct smu_funcs smu_v11_0_funcs = {
 	.set_deep_sleep_dcefclk = smu_v11_0_set_deep_sleep_dcefclk,
 	.display_clock_voltage_request = smu_v11_0_display_clock_voltage_request,
 	.set_watermarks_for_clock_ranges = smu_v11_0_set_watermarks_for_clock_ranges,
+	.get_sclk = smu_v11_0_dpm_get_sclk,
+	.get_mclk = smu_v11_0_dpm_get_mclk,
 	.set_od8_default_settings = smu_v11_0_set_od8_default_settings,
 	.get_activity_monitor_coeff = smu_v11_0_get_activity_monitor_coeff,
 	.set_activity_monitor_coeff = smu_v11_0_set_activity_monitor_coeff,