drm/amd/display: Add new DCN401 sources

Add initial support for DCN 4.0.1.

Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn401/dalsmc.h

@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: MIT
+//
+// Copyright 2024 Advanced Micro Devices, Inc.
+
+#ifndef DALSMC_H
+#define DALSMC_H
+
+#define DALSMC_VERSION 0x1
+
+// SMU Response Codes:
+#define DALSMC_Result_OK                   0x1
+#define DALSMC_Result_Failed               0xFF
+#define DALSMC_Result_UnknownCmd           0xFE
+#define DALSMC_Result_CmdRejectedPrereq    0xFD
+#define DALSMC_Result_CmdRejectedBusy      0xFC
+
+
+
+// Message Definitions:
+#define DALSMC_MSG_TestMessage                    0x1
+#define DALSMC_MSG_GetSmuVersion                  0x2
+#define DALSMC_MSG_GetDriverIfVersion             0x3
+#define DALSMC_MSG_GetMsgHeaderVersion            0x4
+#define DALSMC_MSG_SetDalDramAddrHigh             0x5
+#define DALSMC_MSG_SetDalDramAddrLow              0x6
+#define DALSMC_MSG_TransferTableSmu2Dram          0x7
+#define DALSMC_MSG_TransferTableDram2Smu          0x8
+#define DALSMC_MSG_SetHardMinByFreq               0x9
+#define DALSMC_MSG_SetHardMaxByFreq               0xA
+#define DALSMC_MSG_GetDpmFreqByIndex              0xB
+#define DALSMC_MSG_GetDcModeMaxDpmFreq            0xC
+#define DALSMC_MSG_SetMinDeepSleepDcfclk          0xD
+#define DALSMC_MSG_NumOfDisplays                  0xE
+#define DALSMC_MSG_SetExternalClientDfCstateAllow 0xF
+#define DALSMC_MSG_BacoAudioD3PME                 0x10
+#define DALSMC_MSG_SetFclkSwitchAllow             0x11
+#define DALSMC_MSG_SetCabForUclkPstate            0x12
+#define DALSMC_MSG_SetWorstCaseUclkLatency        0x13
+#define DALSMC_Message_Count                      0x14
+
+typedef enum {
+  FCLK_SWITCH_DISALLOW,
+  FCLK_SWITCH_ALLOW,
+} FclkSwitchAllow_e;
+
+#endif