--- /dev/null
+/*
+ * Copyright 2025 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_15_0_8_PPSMC_H
+#define SMU_15_0_8_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_GfxDriverReset 0x3
+#define PPSMC_MSG_GetDriverIfVersion 0x4
+#define PPSMC_MSG_EnableAllSmuFeatures 0x5
+#define PPSMC_MSG_GetMetricsVersion 0x6
+#define PPSMC_MSG_GetMetricsTable 0x7
+#define PPSMC_MSG_GetEnabledSmuFeatures 0x8
+#define PPSMC_MSG_SetDriverDramAddr 0x9 //ARG0: low address, ARG1: high address
+#define PPSMC_MSG_SetToolsDramAddr 0xA //ARG0: low address, ARG1: high address
+//#define PPSMC_MSG_SetSystemVirtualDramAddr 0xB
+#define PPSMC_MSG_SetSoftMaxByFreq 0xC
+#define PPSMC_MSG_SetPptLimit 0xD
+#define PPSMC_MSG_GetPptLimit 0xE
+#define PPSMC_MSG_DramLogSetDramAddr 0xF //ARG0: low address, ARG1: high address, ARG2: size
+#define PPSMC_MSG_HeavySBR 0x10
+#define PPSMC_MSG_DFCstateControl 0x11
+#define PPSMC_MSG_GfxDriverResetRecovery 0x12
+#define PPSMC_MSG_TriggerVFFLR 0x13
+#define PPSMC_MSG_SetSoftMinGfxClk 0x14
+#define PPSMC_MSG_SetSoftMaxGfxClk 0x15
+#define PPSMC_MSG_PrepareForDriverUnload 0x16
+#define PPSMC_MSG_QueryValidMcaCount 0x17
+#define PPSMC_MSG_McaBankDumpDW 0x18
+#define PPSMC_MSG_ClearMcaOnRead 0x19
+#define PPSMC_MSG_QueryValidMcaCeCount 0x1A
+#define PPSMC_MSG_McaBankCeDumpDW 0x1B
+#define PPSMC_MSG_SelectPLPDMode 0x1C
+#define PPSMC_MSG_SetThrottlingPolicy 0x1D
+#define PPSMC_MSG_ResetSDMA 0x1E
+#define PPSMC_MSG_GetRasTableVersion 0x1F
+#define PPSMC_MSG_GetRmaStatus 0x20
+#define PPSMC_MSG_GetBadPageCount 0x21
+#define PPSMC_MSG_GetBadPageMcaAddress 0x22
+#define PPSMC_MSG_GetBadPagePaAddress 0x23
+#define PPSMC_MSG_SetTimestamp 0x24
+#define PPSMC_MSG_GetTimestamp 0x25
+#define PPSMC_MSG_GetRasPolicy 0x26
+#define PPSMC_MSG_GetBadPageIpIdLoHi 0x27
+#define PPSMC_MSG_EraseRasTable 0x28
+#define PPSMC_MSG_GetStaticMetricsTable 0x29
+#define PPSMC_MSG_ResetVfArbitersByIndex 0x2A
+#define PPSMC_MSG_GetBadPageSeverity 0x2B
+#define PPSMC_MSG_GetSystemMetricsTable 0x2C
+#define PPSMC_MSG_GetSystemMetricsVersion 0x2D
+#define PPSMC_MSG_ResetVCN 0x2E
+#define PPSMC_MSG_SetFastPptLimit 0x2F
+#define PPSMC_MSG_GetFastPptLimit 0x30
+#define PPSMC_MSG_SetSoftMinGl2clk 0x31
+#define PPSMC_MSG_SetSoftMaxGl2clk 0x32
+#define PPSMC_MSG_SetSoftMinFclk 0x33
+#define PPSMC_MSG_SetSoftMaxFclk 0x34
+#define PPSMC_Message_Count 0x35
+
+/* PSMC Reset Types for driver msg argument */
+#define PPSMC_RESET_TYPE_DRIVER_MODE_1_RESET 0x1
+#define PPSMC_RESET_TYPE_DRIVER_MODE_2_RESET 0x2
+#define PPSMC_RESET_TYPE_DRIVER_MODE_3_RESET 0x3
+
+/* PLPD modes */
+#define PPSMC_PLPD_MODE_DEFAULT 0x1
+#define PPSMC_PLPD_MODE_OPTIMIZED 0x2
+
+typedef uint32_t PPSMC_Result;
+typedef uint32_t PPSMC_MSG;
+
+#endif