drm/amd/pp: Implement force_dpm_level on Rv

user can change dpm level on Rv through sysfs

v3: add smu version check
v2: fix no return statement

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

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

@@ -484,6 +484,129 @@ static int rv_hwmgr_backend_fini(struct pp_hwmgr *hwmgr)
 static int rv_dpm_force_dpm_level(struct pp_hwmgr *hwmgr,
 				enum amd_dpm_forced_level level)
 {
+	if (hwmgr->smu_version < 0x1E3700) {
+		pr_info("smu firmware version too old, can not set dpm level\n");
+		return 0;
+	}
+
+	switch (level) {
+	case AMD_DPM_FORCED_LEVEL_HIGH:
+	case AMD_DPM_FORCED_LEVEL_PROFILE_PEAK:
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetHardMinGfxClk,
+						RAVEN_UMD_PSTATE_PEAK_GFXCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetHardMinFclkByFreq,
+						RAVEN_UMD_PSTATE_PEAK_FCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetHardMinSocclkByFreq,
+						RAVEN_UMD_PSTATE_PEAK_SOCCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetHardMinVcn,
+						RAVEN_UMD_PSTATE_VCE);
+
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetSoftMaxGfxClk,
+						RAVEN_UMD_PSTATE_PEAK_GFXCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetSoftMaxFclkByFreq,
+						RAVEN_UMD_PSTATE_PEAK_FCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetSoftMaxSocclkByFreq,
+						RAVEN_UMD_PSTATE_PEAK_SOCCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetSoftMaxVcn,
+						RAVEN_UMD_PSTATE_VCE);
+		break;
+	case AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK:
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetHardMinGfxClk,
+						RAVEN_UMD_PSTATE_MIN_GFXCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetSoftMaxGfxClk,
+						RAVEN_UMD_PSTATE_MIN_GFXCLK);
+		break;
+	case AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK:
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetHardMinFclkByFreq,
+						RAVEN_UMD_PSTATE_MIN_FCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetSoftMaxFclkByFreq,
+						RAVEN_UMD_PSTATE_MIN_FCLK);
+		break;
+	case AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD:
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetHardMinGfxClk,
+						RAVEN_UMD_PSTATE_GFXCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetHardMinFclkByFreq,
+						RAVEN_UMD_PSTATE_FCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetHardMinSocclkByFreq,
+						RAVEN_UMD_PSTATE_SOCCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetHardMinVcn,
+						RAVEN_UMD_PSTATE_VCE);
+
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetSoftMaxGfxClk,
+						RAVEN_UMD_PSTATE_GFXCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetSoftMaxFclkByFreq,
+						RAVEN_UMD_PSTATE_FCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetSoftMaxSocclkByFreq,
+						RAVEN_UMD_PSTATE_SOCCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetSoftMaxVcn,
+						RAVEN_UMD_PSTATE_VCE);
+		break;
+	case AMD_DPM_FORCED_LEVEL_AUTO:
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetHardMinGfxClk,
+						RAVEN_UMD_PSTATE_MIN_GFXCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetHardMinFclkByFreq,
+						RAVEN_UMD_PSTATE_MIN_FCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetHardMinSocclkByFreq,
+						RAVEN_UMD_PSTATE_MIN_SOCCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetHardMinVcn,
+						RAVEN_UMD_PSTATE_MIN_VCE);
+
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetSoftMaxGfxClk,
+						RAVEN_UMD_PSTATE_PEAK_GFXCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetSoftMaxFclkByFreq,
+						RAVEN_UMD_PSTATE_PEAK_FCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetSoftMaxSocclkByFreq,
+						RAVEN_UMD_PSTATE_PEAK_SOCCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetSoftMaxVcn,
+						RAVEN_UMD_PSTATE_VCE);
+		break;
+	case AMD_DPM_FORCED_LEVEL_LOW:
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetHardMinGfxClk,
+						RAVEN_UMD_PSTATE_MIN_GFXCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetSoftMaxGfxClk,
+						RAVEN_UMD_PSTATE_MIN_GFXCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetHardMinFclkByFreq,
+						RAVEN_UMD_PSTATE_MIN_FCLK);
+		smum_send_msg_to_smc_with_parameter(hwmgr,
+						PPSMC_MSG_SetSoftMaxFclkByFreq,
+						RAVEN_UMD_PSTATE_MIN_FCLK);
+		break;
+	case AMD_DPM_FORCED_LEVEL_MANUAL:
+	case AMD_DPM_FORCED_LEVEL_PROFILE_EXIT:
+	default:
+		break;
+	}
 	return 0;
 }
 

drivers/gpu/drm/amd/powerplay/hwmgr/rv_hwmgr.h

@@ -304,4 +304,19 @@ struct pp_hwmgr;
 
 int rv_init_function_pointers(struct pp_hwmgr *hwmgr);
 
+/* UMD PState Raven Msg Parameters in MHz */
+#define RAVEN_UMD_PSTATE_GFXCLK                 700
+#define RAVEN_UMD_PSTATE_SOCCLK                 626
+#define RAVEN_UMD_PSTATE_FCLK                   933
+#define RAVEN_UMD_PSTATE_VCE                    0x03C00320
+
+#define RAVEN_UMD_PSTATE_PEAK_GFXCLK            1100
+#define RAVEN_UMD_PSTATE_PEAK_SOCCLK            757
+#define RAVEN_UMD_PSTATE_PEAK_FCLK              1200
+
+#define RAVEN_UMD_PSTATE_MIN_GFXCLK             200
+#define RAVEN_UMD_PSTATE_MIN_FCLK               400
+#define RAVEN_UMD_PSTATE_MIN_SOCCLK             200
+#define RAVEN_UMD_PSTATE_MIN_VCE                0x0190012C
+
 #endif