--- /dev/null
+/*
+ * Copyright 2020 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#ifndef SMU_11_5_0_PPSMC_H
+#define SMU_11_5_0_PPSMC_H
+
+// SMU Response Codes:
+#define PPSMC_Result_OK 0x1
+#define PPSMC_Result_Failed 0xFF
+#define PPSMC_Result_UnknownCmd 0xFE
+#define PPSMC_Result_CmdRejectedPrereq 0xFD
+#define PPSMC_Result_CmdRejectedBusy 0xFC
+
+// Message Definitions:
+#define PPSMC_MSG_TestMessage 0x1
+#define PPSMC_MSG_GetSmuVersion 0x2
+#define PPSMC_MSG_GetDriverIfVersion 0x3
+#define PPSMC_MSG_EnableGfxOff 0x4
+#define PPSMC_MSG_DisableGfxOff 0x5
+#define PPSMC_MSG_PowerDownIspByTile 0x6 // ISP is power gated by default
+#define PPSMC_MSG_PowerUpIspByTile 0x7
+#define PPSMC_MSG_PowerDownVcn 0x8 // VCN is power gated by default
+#define PPSMC_MSG_PowerUpVcn 0x9
+#define PPSMC_MSG_spare 0xA
+#define PPSMC_MSG_SetHardMinVcn 0xB // For wireless display
+#define PPSMC_MSG_SetMinVideoGfxclkFreq 0xC //Sets SoftMin for GFXCLK. Arg is in MHz
+#define PPSMC_MSG_ActiveProcessNotify 0xD
+#define PPSMC_MSG_SetHardMinIspiclkByFreq 0xE
+#define PPSMC_MSG_SetHardMinIspxclkByFreq 0xF
+#define PPSMC_MSG_SetDriverDramAddrHigh 0x10
+#define PPSMC_MSG_SetDriverDramAddrLow 0x11
+#define PPSMC_MSG_TransferTableSmu2Dram 0x12
+#define PPSMC_MSG_TransferTableDram2Smu 0x13
+#define PPSMC_MSG_GfxDeviceDriverReset 0x14 //mode 2 reset during TDR
+#define PPSMC_MSG_GetEnabledSmuFeatures 0x15
+#define PPSMC_MSG_spare1 0x16
+#define PPSMC_MSG_SetHardMinSocclkByFreq 0x17
+#define PPSMC_MSG_SetMinVideoFclkFreq 0x18
+#define PPSMC_MSG_SetSoftMinVcn 0x19
+#define PPSMC_MSG_EnablePostCode 0x1A
+#define PPSMC_MSG_GetGfxclkFrequency 0x1B
+#define PPSMC_MSG_GetFclkFrequency 0x1C
+#define PPSMC_MSG_AllowGfxOff 0x1D
+#define PPSMC_MSG_DisallowGfxOff 0x1E
+#define PPSMC_MSG_SetSoftMaxGfxClk 0x1F
+#define PPSMC_MSG_SetHardMinGfxClk 0x20
+#define PPSMC_MSG_SetSoftMaxSocclkByFreq 0x21
+#define PPSMC_MSG_SetSoftMaxFclkByFreq 0x22
+#define PPSMC_MSG_SetSoftMaxVcn 0x23
+#define PPSMC_MSG_GpuChangeState 0x24 //FIXME AHOLLA - check how to do for VGM
+#define PPSMC_MSG_SetPowerLimitPercentage 0x25
+#define PPSMC_MSG_PowerDownJpeg 0x26
+#define PPSMC_MSG_PowerUpJpeg 0x27
+#define PPSMC_MSG_SetHardMinFclkByFreq 0x28
+#define PPSMC_MSG_SetSoftMinSocclkByFreq 0x29
+#define PPSMC_MSG_PowerUpCvip 0x2A
+#define PPSMC_MSG_PowerDownCvip 0x2B
+#define PPSMC_Message_Count 0x2C
+
+//Argument for PPSMC_MSG_GpuChangeState
+enum {
+ GpuChangeState_D0Entry = 1,
+ GpuChangeState_D3Entry,
+};
+
+#endif