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1. updated functions header.
2. sync some comments for .S files.
3. fixed some error in AsmFuncs.S

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7044 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff
2008-12-16 09:21:45 +00:00
parent b263ee1718
commit 509bc208d8
11 changed files with 349 additions and 148 deletions
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116
MdeModulePkg/Universal/DebugSupportDxe/Ipf/PlDebugSupport.c
View File

@@ -1,5 +1,5 @@
/** @file
IPF specific debug support functions
IPF specific functions to support Debug Support protocol.
Copyright (c) 2006 - 2008, Intel Corporation
All rights reserved. This program and the accompanying materials
@@ -12,9 +12,6 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
//
// private header files
//
#include "PlDebugSupport.h"
BOOLEAN mInHandler = FALSE;
@@ -66,7 +63,9 @@ PlInitializeDebugSupportDriver (
/**
Unload handler that is called during UnloadImage() - deallocates pool memory
used by the driver. Must be public because it's referenced from DebugSuport.c
used by the driver.
Must be public because it's referenced from DebugSuport.c
@param ImageHandle The firmware allocated handle for the EFI image.
@@ -90,10 +89,12 @@ PlUnloadDebugSupportDriver (
/**
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.
exception dispatcher.
@param ExceptionType Exception Type
@param Context System Context
Must be public because it's referenced from AsmFuncs.s.
@param ExceptionType Specifies which processor exception.
@param Context System Context.
**/
VOID
CommonHandler (
@@ -170,12 +171,11 @@ GetHandlerEntryPoint (
/**
This is the worker function that uninstalls and removes all handlers.
@param ExceptionType Exception Type
@param NewBundles New Boundles
@param NewCallback New Callback
@param ExceptionType Specifies which processor exception.
@param NewBundles New Boundles.
@param NewCallback A pointer to the new function to be registered.
@retval EFI_ALEADY_STARTED Ivt already hooked.
@retval others Indicates the request was not satisfied.
@retval EFI_SUCCESS Successfully uninstalled.
**/
@@ -248,9 +248,9 @@ ManageIvtEntryTable (
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
@param ExceptionType Specifies which processor exception.
@param NewBundles New Boundles.
@param NewCallback A pointer to the new function to be hooked.
**/
VOID
@@ -294,7 +294,7 @@ HookEntry (
/**
Restores original IVT contents when unregistering a callback function.
@param ExceptionType Exception Type
@param ExceptionType Specifies which processor exception.
**/
VOID
@@ -324,7 +324,7 @@ UnhookEntry (
Records new callback in IvtEntryTable.
@param NewCallback New Callback
@param NewCallback A pointer to the interrupt handle.
**/
VOID
@@ -358,19 +358,17 @@ UnchainExternalInterrupt (
IvtEntryTable[EXCEPT_IPF_EXTERNAL_INTERRUPT].RegisteredCallback = NULL;
}
//
// The rest of the functions in this file are all member functions for the
// DebugSupport protocol
//
/**
This is a DebugSupport protocol member function, hard
coded to support only 1 processor for now.
Returns the maximum value that may be used for the ProcessorIndex parameter in
RegisterPeriodicCallback() and RegisterExceptionCallback().
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.
@param This A pointer to the EFI_DEBUG_SUPPORT_PROTOCOL instance.
@param MaxProcessorIndex Pointer to a caller-allocated UINTN in which the maximum supported
processor index is returned. Always 0 returned.
@retval EFI_SUCCESS Always returned with **MaxProcessorIndex set to 0.
**/
EFI_STATUS
@@ -385,15 +383,18 @@ GetMaximumProcessorIndex (
}
/**
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.
Registers a function to be called back periodically in interrupt context.
@param This A pointer to the EFI_DEBUG_SUPPORT_PROTOCOL instance.
@param ProcessorIndex Specifies which processor the callback function applies to.
@param PeriodicCallback A pointer to a function of type PERIODIC_CALLBACK that is the main
periodic entry point of the debug agent.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_ALREADY_STARTED Non-NULL PeriodicCallback parameter when a callback
function was previously registered.
@retval EFI_OUT_OF_RESOURCES System has insufficient memory resources to register new callback
function.
**/
EFI_STATUS
EFIAPI
@@ -407,16 +408,21 @@ RegisterPeriodicCallback (
}
/**
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.
Registers a function to be called when a given processor exception occurs.
This code executes in boot services context.
@param This A pointer to the EFI_DEBUG_SUPPORT_PROTOCOL instance.
@param ProcessorIndex Specifies which processor the callback function applies to.
@param ExceptionCallback A pointer to a function of type EXCEPTION_CALLBACK that is called
when the processor exception specified by ExceptionType occurs.
@param ExceptionType Specifies which processor exception to hook.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_ALREADY_STARTED Non-NULL PeriodicCallback parameter when a callback
function was previously registered.
@retval EFI_OUT_OF_RESOURCES System has insufficient memory resources to register new callback
function.
**/
EFI_STATUS
EFIAPI
@@ -435,14 +441,16 @@ RegisterExceptionCallback (
}
/**
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.
Invalidates processor instruction cache for a memory range. Subsequent execution in this range
causes a fresh memory fetch to retrieve code to be executed.
@param This A pointer to the EFI_DEBUG_SUPPORT_PROTOCOL instance.
@param ProcessorIndex Specifies which processor's instruction cache is to be invalidated.
@param Start Specifies the physical base of the memory range to be invalidated.
@param Length Specifies the minimum number of bytes in the processor's instruction
cache to invalidate.
@retval EFI_SUCCESS Always returned.
**/
EFI_STATUS