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ECC clean up.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6405 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff
2008-11-05 08:44:03 +00:00
parent e1a590c3e7
commit 9e604fe42d
12 changed files with 744 additions and 1204 deletions
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369
MdeModulePkg/Universal/DebugSupportDxe/Ipf/PlDebugSupport.c
View File

@@ -1,4 +1,4 @@
/**@file
/** @file
IPF specific debug support functions
Copyright (c) 2006 - 2008, Intel Corporation
@@ -35,35 +35,82 @@ typedef struct {
VOID (*RegisteredCallback) ();
} IVT_ENTRY;
/**
This is the worker function that uninstalls and removes all handlers.
@param ExceptionType Exception Type
@param NewBundles New Boundles
@param NewCallback New Callback
@retval EFI_ALEADY_STARTED Ivt already hooked.
@retval others Indicates the request was not satisfied.
@retval EFI_SUCCESS Successfully uninstalled.
**/
EFI_STATUS
ManageIvtEntryTable (
IN EFI_EXCEPTION_TYPE ExceptionType,
IN EFI_EXCEPTION_TYPE ExceptionType,
IN BUNDLE NewBundles[4],
IN VOID (*NewCallback) ()
);
/**
Saves original IVT contents and inserts a few new bundles which are fixed up
to store the ExceptionType and then call the common handler.
@param ExceptionType Exception Type
@param NewBundles New Boundles
@param NewCallback New Callback
**/
VOID
HookEntry (
IN EFI_EXCEPTION_TYPE ExceptionType,
IN EFI_EXCEPTION_TYPE ExceptionType,
IN BUNDLE NewBundles[4],
IN VOID (*NewCallback) ()
);
/**
Restores original IVT contents when unregistering a callback function.
@param ExceptionType Exception Type
**/
VOID
UnhookEntry (
IN EFI_EXCEPTION_TYPE ExceptionType
);
/**
Sets up cache flush and calls assembly function to chain external interrupt.
Records new callback in IvtEntryTable.
@param NewCallback New Callback.
**/
VOID
ChainExternalInterrupt (
IN VOID (*NewCallback) ()
);
/**
Sets up cache flush and calls assembly function to restore external interrupt.
Removes registered callback from IvtEntryTable.
**/
VOID
UnchainExternalInterrupt (
VOID
);
/**
Given an integer number, return the physical address of the entry point in the IFT.
@param HandlerIndex Index of the Handler
@param EntryPoint IFT Entrypoint
**/
VOID
GetHandlerEntryPoint (
UINTN HandlerIndex,
@@ -85,48 +132,38 @@ UINT8 IpfContextBuf[sizeof (EFI_SYSTEM_CONTEXT_IPF) + 512];
UINT8 PatchSaveBuffer[0x400];
UINTN ExternalInterruptCount;
/**
IPF specific DebugSupport driver initialization.
Must be public because it's referenced from DebugSupport.c
@retval EFI_SUCCESS Always.
**/
EFI_STATUS
plInitializeDebugSupportDriver (
PlInitializeDebugSupportDriver (
VOID
)
/*++
Routine Description:
IPF specific DebugSupport driver initialization. Must be public because it's
referenced from DebugSupport.c
Arguments:
Returns:
EFI_SUCCESS
--*/
{
SetMem (IvtEntryTable, sizeof (IvtEntryTable), 0);
ExternalInterruptCount = 0;
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
plUnloadDebugSupportDriver (
IN EFI_HANDLE ImageHandle
)
/*++
Routine Description:
/**
Unload handler that is called during UnloadImage() - deallocates pool memory
used by the driver. Must be public because it's referenced from DebugSuport.c
Arguments:
ImageHandle - Image handle
@param ImageHandle The firmware allocated handle for the EFI image.
Returns:
@retval EFI_SUCCESS Always.
EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
--*/
**/
EFI_STATUS
EFIAPI
PlUnloadDebugSupportDriver (
IN EFI_HANDLE ImageHandle
)
{
EFI_EXCEPTION_TYPE ExceptionType;
@@ -137,26 +174,18 @@ Returns:
return EFI_SUCCESS;
}
/**
C routine that is called for all registered exceptions. This is the main
exception dispatcher. Must be public because it's referenced from AsmFuncs.s.
@param ExceptionType Exception Type
@param Context System Context
**/
VOID
CommonHandler (
IN EFI_EXCEPTION_TYPE ExceptionType,
IN EFI_SYSTEM_CONTEXT Context
)
/*++
Routine Description:
C routine that is called for all registered exceptions. This is the main
exception dispatcher. Must be public because it's referenced from AsmFuncs.s.
Arguments:
ExceptionType - Exception Type
Context - System Context
Returns:
Nothing
--*/
{
DEBUG_CODE_BEGIN ();
if (mInHandler) {
@@ -189,25 +218,18 @@ Returns:
mInHandler = FALSE;
}
/**
Given an integer number, return the physical address of the entry point in the IFT.
@param HandlerIndex Index of the Handler
@param EntryPoint IFT Entrypoint
**/
VOID
GetHandlerEntryPoint (
UINTN HandlerIndex,
VOID **EntryPoint
)
/*++
Routine Description:
Given an integer number, return the physical address of the entry point in the IFT
Arguments:
HandlerIndex - Index of the Handler
EntryPoint - IFT Entrypoint
Returns:
Nothing
--*/
{
UINT8 *TempPtr;
@@ -231,29 +253,24 @@ Returns:
*EntryPoint = (VOID *) TempPtr;
}
/**
This is the worker function that uninstalls and removes all handlers.
@param ExceptionType Exception Type
@param NewBundles New Boundles
@param NewCallback New Callback
@retval EFI_ALEADY_STARTED Ivt already hooked.
@retval others Indicates the request was not satisfied.
@retval EFI_SUCCESS Successfully uninstalled.
**/
EFI_STATUS
ManageIvtEntryTable (
IN EFI_EXCEPTION_TYPE ExceptionType,
IN EFI_EXCEPTION_TYPE ExceptionType,
IN BUNDLE NewBundles[NUM_BUNDLES_IN_STUB],
IN VOID (*NewCallback) ()
)
/*++
Routine Description:
This is the worker function that installs and removes all handlers
Arguments:
ExceptionType - Exception Type
NewBundles - New Boundles
NewCallback - New Callback
Returns:
EFI_STATUS - any return other than EFI_SUCCESS indicates the request was not
satisfied.
EFI_ALEADY_STARTED - Ivt already hooked.
--*/
{
BUNDLE *B0Ptr;
UINT64 InterruptFlags;
@@ -313,28 +330,21 @@ Returns:
return EFI_SUCCESS;
}
/**
Saves original IVT contents and inserts a few new bundles which are fixed up
to store the ExceptionType and then call the common handler.
@param ExceptionType Exception Type
@param NewBundles New Boundles
@param NewCallback New Callback
**/
VOID
HookEntry (
IN EFI_EXCEPTION_TYPE ExceptionType,
IN BUNDLE NewBundles[4],
IN VOID (*NewCallback) ()
)
/*++
Routine Description:
Saves original IVT contents and inserts a few new bundles which are fixed up
to store the ExceptionType and then call the common handler.
Arguments:
ExceptionType - Exception Type
NewBundles - New Boundles
NewCallback - New Callback
Returns:
Nothing
--*/
{
BUNDLE *FixupBundle;
BUNDLE *B0Ptr;
@@ -367,25 +377,16 @@ Returns:
IvtEntryTable[ExceptionType].RegisteredCallback = NewCallback;
}
/**
Restores original IVT contents when unregistering a callback function.
@param ExceptionType Exception Type
**/
VOID
UnhookEntry (
IN EFI_EXCEPTION_TYPE ExceptionType
)
/*++
Routine Description:
Restores original IVT contents when unregistering a callback function
Arguments:
ExceptionType - Exception Type
NewBundles - New Boundles
NewCallback - New Callback
Returns:
Nothing
--*/
{
BUNDLE *B0Ptr;
@@ -404,24 +405,18 @@ Returns:
InstructionCacheFlush (B0Ptr, 5);
}
/**
Sets up cache flush and calls assembly function to chain external interrupt.
Records new callback in IvtEntryTable.
@param NewCallback New Callback
**/
VOID
ChainExternalInterrupt (
IN VOID (*NewCallback) ()
)
/*++
Routine Description:
Sets up cache flush and calls assembly function to chain external interrupt.
Records new callback in IvtEntryTable.
Arguments:
NewCallback - New Callback
Returns:
Nothing
--*/
{
VOID *Start;
@@ -431,24 +426,15 @@ Returns:
InstructionCacheFlush (Start, 0x400);
}
/**
Sets up cache flush and calls assembly function to restore external interrupt.
Removes registered callback from IvtEntryTable.
**/
VOID
UnchainExternalInterrupt (
VOID
)
/*++
Routine Description:
Sets up cache flush and calls assembly function to restore external interrupt.
Removes registered callback from IvtEntryTable.
Arguments:
Nothing
Returns:
Nothing
--*/
{
VOID *Start;
@@ -463,56 +449,61 @@ Returns:
// DebugSupport protocol
//
/**
This is a DebugSupport protocol member function, hard
coded to support only 1 processor for now.
@param This The DebugSupport instance
@param MaxProcessorIndex The maximuim supported processor index
@retval EFI_SUCCESS Always returned with **MaxProcessorIndex set to 0.
**/
EFI_STATUS
EFIAPI
GetMaximumProcessorIndex (
IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
OUT UINTN *MaxProcessorIndex
)
/*++
Routine Description: This is a DebugSupport protocol member function. Hard
coded to support only 1 processor for now.
Arguments:
This - The DebugSupport instance
MaxProcessorIndex - The maximuim supported processor index
Returns:
Always returns EFI_SUCCESS with *MaxProcessorIndex set to 0
--*/
{
*MaxProcessorIndex = 0;
return (EFI_SUCCESS);
}
/**
DebugSupport protocol member function.
@param This The DebugSupport instance
@param ProcessorIndex Which processor the callback applies to.
@param PeriodicCallback Callback function
@retval EFI_SUCCESS Indicates the callback was registered.
@retval others Callback was not registered.
**/
EFI_STATUS
EFIAPI
RegisterPeriodicCallback (
IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
IN UINTN ProcessorIndex,
IN EFI_PERIODIC_CALLBACK NewPeriodicCallback
IN EFI_PERIODIC_CALLBACK PeriodicCallback
)
/*++
Routine Description:
DebugSupport protocol member function
Arguments:
This - The DebugSupport instance
ProcessorIndex - Which processor the callback applies to.
PeriodicCallback - Callback function
Returns:
EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
--*/
{
return ManageIvtEntryTable (EXCEPT_IPF_EXTERNAL_INTERRUPT, NULL, NewPeriodicCallback);
return ManageIvtEntryTable (EXCEPT_IPF_EXTERNAL_INTERRUPT, NULL, PeriodicCallback);
}
/**
DebugSupport protocol member function.
@param This The DebugSupport instance
@param ProcessorIndex Which processor the callback applies to.
@param NewCallback Callback function
@param ExceptionType Which exception to hook
@retval EFI_SUCCESS Indicates the callback was registered.
@retval others Callback was not registered.
**/
EFI_STATUS
EFIAPI
RegisterExceptionCallback (
@@ -521,22 +512,6 @@ RegisterExceptionCallback (
IN EFI_EXCEPTION_CALLBACK NewCallback,
IN EFI_EXCEPTION_TYPE ExceptionType
)
/*++
Routine Description:
DebugSupport protocol member function
Arguments:
This - The DebugSupport instance
ProcessorIndex - Which processor the callback applies to.
NewCallback - Callback function
ExceptionType - Which exception to hook
Returns:
EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
--*/
{
return ManageIvtEntryTable (
ExceptionType,
@@ -545,6 +520,17 @@ Returns:
);
}
/**
DebugSupport protocol member function. Calls assembly routine to flush cache.
@param This The DebugSupport instance
@param ProcessorIndex Which processor the callback applies to.
@param Start Physical base of the memory range to be invalidated
@param Length mininum number of bytes in instruction cache to invalidate
@retval EFI_SUCCESS Always returned.
**/
EFI_STATUS
EFIAPI
InvalidateInstructionCache (
@@ -553,22 +539,7 @@ InvalidateInstructionCache (
IN VOID *Start,
IN UINTN Length
)
/*++
Routine Description:
DebugSupport protocol member function. Calls assembly routine to flush cache.
Arguments:
This - The DebugSupport instance
ProcessorIndex - Which processor the callback applies to.
Start - Physical base of the memory range to be invalidated
Length - mininum number of bytes in instruction cache to invalidate
Returns:
EFI_SUCCESS
--*/
{
InstructionCacheFlush (Start, Length);
return (EFI_SUCCESS);
return EFI_SUCCESS;
}