drm/amd/powerplay: add smc msg for NB P-State switch

Signed-off-by: NRex Zhu <Rex.Zhu@amd.com>
Signed-off-by: NDavid Rokhvarg <David.Rokhvarg@amd.com>
Reviewed-by: NAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: NJammy Zhou <Jammy.Zhou@amd.com>

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

@@ -164,6 +164,7 @@ enum DPM_ARRAY {
 #define PPSMC_MSG_SetLoggerAddressHigh        ((uint16_t) 0x26C)
 #define PPSMC_MSG_SetLoggerAddressLow         ((uint16_t) 0x26D)
 #define PPSMC_MSG_SetWatermarkFrequency       ((uint16_t) 0x26E)
+#define PPSMC_MSG_SetDisplaySizePowerParams   ((uint16_t) 0x26F)
 
 /* REMOVE LATER*/
 #define PPSMC_MSG_DPM_ForceState              ((uint16_t) 0x104)

drivers/gpu/drm/amd/powerplay/inc/smu8_fusion.h

@@ -48,6 +48,14 @@ struct SMU8_Port80MonitorTable {
 	uint8_t  EnableDramShadow;
 };
 
+/*  Display specific power management parameters */
+#define PWRMGT_SEPARATION_TIME_SHIFT            0
+#define PWRMGT_SEPARATION_TIME_MASK             0xFFFF
+#define PWRMGT_DISABLE_CPU_CSTATES_SHIFT        16
+#define PWRMGT_DISABLE_CPU_CSTATES_MASK         0x1
+#define PWRMGT_DISABLE_CPU_PSTATES_SHIFT        24
+#define PWRMGT_DISABLE_CPU_PSTATES_MASK         0x1
+
 /* Clock Table Definitions */
 #define NUM_SCLK_LEVELS     8
 #define NUM_LCLK_LEVELS     8