diff options
Diffstat (limited to 'gnu-efi/gnu-efi-3.0/lib/ia64/salpal.c')
| -rw-r--r-- | gnu-efi/gnu-efi-3.0/lib/ia64/salpal.c | 335 |
1 files changed, 335 insertions, 0 deletions
diff --git a/gnu-efi/gnu-efi-3.0/lib/ia64/salpal.c b/gnu-efi/gnu-efi-3.0/lib/ia64/salpal.c new file mode 100644 index 0000000..3d808f3 --- /dev/null +++ b/gnu-efi/gnu-efi-3.0/lib/ia64/salpal.c @@ -0,0 +1,335 @@ +/*++ + +Copyright (c) 1999 Intel Corporation + +Module Name: + + salpal.c + +Abstract: + + Functions to make SAL and PAL proc calls + +Revision History + +--*/ +#include "lib.h" +#include "palproc.h" +#include "salproc.h" +/*++ + +Copyright (c) 1999 Intel Corporation + +Module Name: + + EfiRtLib.h + +Abstract: + + EFI Runtime library functions + + + +Revision History + +--*/ + +#include "efi.h" +#include "efilib.h" + +rArg +MakeStaticPALCall ( + IN UINT64 PALPROCPtr, + IN UINT64 Arg1, + IN UINT64 Arg2, + IN UINT64 Arg3, + IN UINT64 Arg4 + ); + +rArg +MakeStackedPALCall ( + IN UINT64 PALPROCPtr, + IN UINT64 Arg1, + IN UINT64 Arg2, + IN UINT64 Arg3, + IN UINT64 Arg4 + ); + + +PLABEL SalProcPlabel; +PLABEL PalProcPlabel; +CALL_SAL_PROC GlobalSalProc; +CALL_PAL_PROC GlobalPalProc; + +VOID +LibInitSalAndPalProc ( + OUT PLABEL *SalPlabel, + OUT UINT64 *PalEntry + ) +{ + SAL_SYSTEM_TABLE_ASCENDING_ORDER *SalSystemTable; + EFI_STATUS Status; + + GlobalSalProc = NULL; + GlobalPalProc = NULL; + + Status = LibGetSystemConfigurationTable(&SalSystemTableGuid, (VOID **)&SalSystemTable); + if (EFI_ERROR(Status)) { + return; + } + + // + // BugBug: Add code to test checksum on the Sal System Table + // + if (SalSystemTable->Entry0.Type != 0) { + return; + } + + SalProcPlabel.ProcEntryPoint = SalSystemTable->Entry0.SalProcEntry; + SalProcPlabel.GP = SalSystemTable->Entry0.GlobalDataPointer; + GlobalSalProc = (CALL_SAL_PROC)&SalProcPlabel.ProcEntryPoint; + + // + // Need to check the PAL spec to make sure I'm not responsible for + // storing more state. + // We are passing in a Plabel that should be ignorred by the PAL. Call + // this way will cause use to retore our gp after the PAL returns. + // + PalProcPlabel.ProcEntryPoint = SalSystemTable->Entry0.PalProcEntry; + PalProcPlabel.GP = SalSystemTable->Entry0.GlobalDataPointer; + GlobalPalProc = (CALL_PAL_PROC)PalProcPlabel.ProcEntryPoint; + + *PalEntry = PalProcPlabel.ProcEntryPoint; + *SalPlabel = SalProcPlabel; +} + +EFI_STATUS +LibGetSalIoPortMapping ( + OUT UINT64 *IoPortMapping + ) +/*++ + + Get the IO Port Map from the SAL System Table. + DO NOT USE THIS TO DO YOU OWN IO's!!!!!!!!!!!! + Only use this for getting info, or initing the built in EFI IO abstraction. + Always use the EFI Device IO protoocl to access IO space. + +--*/ +{ + SAL_SYSTEM_TABLE_ASCENDING_ORDER *SalSystemTable; + SAL_ST_MEMORY_DESCRIPTOR_ENTRY *SalMemDesc; + EFI_STATUS Status; + + Status = LibGetSystemConfigurationTable(&SalSystemTableGuid, (VOID **)&SalSystemTable); + if (EFI_ERROR(Status)) { + return EFI_UNSUPPORTED; + } + + // + // BugBug: Add code to test checksum on the Sal System Table + // + if (SalSystemTable->Entry0.Type != 0) { + return EFI_UNSUPPORTED; + } + + // + // The SalSystemTable pointer includes the Type 0 entry. + // The SalMemDesc is Type 1 so it comes next. + // + SalMemDesc = (SAL_ST_MEMORY_DESCRIPTOR_ENTRY *)(SalSystemTable + 1); + while (SalMemDesc->Type == SAL_ST_MEMORY_DESCRIPTOR) { + if (SalMemDesc->MemoryType == SAL_IO_PORT_MAPPING) { + *IoPortMapping = SalMemDesc->PhysicalMemoryAddress; + return EFI_SUCCESS; + } + SalMemDesc++; + } + return EFI_UNSUPPORTED; +} + +EFI_STATUS +LibGetSalIpiBlock ( + OUT UINT64 *IpiBlock + ) +/*++ + + Get the IPI block from the SAL system table + +--*/ +{ + SAL_SYSTEM_TABLE_ASCENDING_ORDER *SalSystemTable; + SAL_ST_MEMORY_DESCRIPTOR_ENTRY *SalMemDesc; + EFI_STATUS Status; + + Status = LibGetSystemConfigurationTable(&SalSystemTableGuid, (VOID*)&SalSystemTable); + if (EFI_ERROR(Status)) { + return EFI_UNSUPPORTED; + } + + // + // BugBug: Add code to test checksum on the Sal System Table + // + if (SalSystemTable->Entry0.Type != 0) { + return EFI_UNSUPPORTED; + } + + // + // The SalSystemTable pointer includes the Type 0 entry. + // The SalMemDesc is Type 1 so it comes next. + // + SalMemDesc = (SAL_ST_MEMORY_DESCRIPTOR_ENTRY *)(SalSystemTable + 1); + while (SalMemDesc->Type == SAL_ST_MEMORY_DESCRIPTOR) { + if (SalMemDesc->MemoryType == SAL_SAPIC_IPI_BLOCK ) { + *IpiBlock = SalMemDesc->PhysicalMemoryAddress; + return EFI_SUCCESS; + } + SalMemDesc++; + } + return EFI_UNSUPPORTED; +} + +EFI_STATUS +LibGetSalWakeupVector ( + OUT UINT64 *WakeVector + ) +/*++ + +Get the wakeup vector from the SAL system table + +--*/ +{ + SAL_ST_AP_WAKEUP_DECRIPTOR *ApWakeUp; + + ApWakeUp = LibSearchSalSystemTable (SAL_ST_AP_WAKEUP); + if (!ApWakeUp) { + *WakeVector = -1; + return EFI_UNSUPPORTED; + } + *WakeVector = ApWakeUp->ExternalInterruptVector; + return EFI_SUCCESS; +} + +VOID * +LibSearchSalSystemTable ( + IN UINT8 EntryType + ) +{ + EFI_STATUS Status; + UINT8 *SalTableHack; + SAL_SYSTEM_TABLE_ASCENDING_ORDER *SalSystemTable; + UINT16 EntryCount; + UINT16 Count; + + Status = LibGetSystemConfigurationTable(&SalSystemTableGuid, (VOID*)&SalSystemTable); + if (EFI_ERROR(Status)) { + return NULL; + } + + EntryCount = SalSystemTable->Header.EntryCount; + if (EntryCount == 0) { + return NULL; + } + // + // BugBug: Add code to test checksum on the Sal System Table + // + + SalTableHack = (UINT8 *)&SalSystemTable->Entry0; + for (Count = 0; Count < EntryCount ;Count++) { + if (*SalTableHack == EntryType) { + return (VOID *)SalTableHack; + } + switch (*SalTableHack) { + case SAL_ST_ENTRY_POINT: + SalTableHack += 48; + break; + case SAL_ST_MEMORY_DESCRIPTOR: + SalTableHack += 32; + break; + case SAL_ST_PLATFORM_FEATURES: + SalTableHack += 16; + break; + case SAL_ST_TR_USAGE: + SalTableHack += 32; + break; + case SAL_ST_PTC: + SalTableHack += 16; + break; + case SAL_ST_AP_WAKEUP: + SalTableHack += 16; + break; + default: + ASSERT(FALSE); + break; + } + } + return NULL; +} + +VOID +LibSalProc ( + IN UINT64 Arg1, + IN UINT64 Arg2, + IN UINT64 Arg3, + IN UINT64 Arg4, + IN UINT64 Arg5, + IN UINT64 Arg6, + IN UINT64 Arg7, + IN UINT64 Arg8, + OUT rArg *Results OPTIONAL + ) +{ + rArg ReturnValue; + + ReturnValue.p0 = -3; // SAL status return completed with error + if (GlobalSalProc) { + ReturnValue = GlobalSalProc(Arg1, Arg2, Arg3, Arg4, Arg5, Arg6, Arg7, Arg8); + } + + if (Results) { + CopyMem (Results, &ReturnValue, sizeof(rArg)); + } +} + +VOID +LibPalProc ( + IN UINT64 Arg1, // Pal Proc index + IN UINT64 Arg2, + IN UINT64 Arg3, + IN UINT64 Arg4, + OUT rArg *Results OPTIONAL + ) +{ + + rArg ReturnValue; + + ReturnValue.p0 = -3; // PAL status return completed with error + + // + // check for valid PalProc entry point + // + + if (!GlobalPalProc) { + if (Results) + CopyMem (Results, &ReturnValue, sizeof(rArg)); + return; + } + + // + // check if index falls within stacked or static register calling conventions + // and call appropriate Pal stub call + // + + if (((Arg1 >=255) && (Arg1 <=511)) || + ((Arg1 >=768) && (Arg1 <=1023))) { + ReturnValue = MakeStackedPALCall((UINT64)GlobalPalProc,Arg1,Arg2,Arg3,Arg4); + } + else { + ReturnValue = MakeStaticPALCall((UINT64)GlobalPalProc,Arg1,Arg2,Arg3,Arg4); + } + + if (Results) + CopyMem (Results, &ReturnValue, sizeof(rArg)); + + return; +} + |