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SourceLevelDebugPkg: Use CPU Local APIC timer to handle timeout.

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Use CPU Local APIC timer to handle timeout when read data from debug port, instead of the TimerLib in Debug Communication lib instances.
It could remove much duplicated code in Debug Communication Lib instances.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>





git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17089 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Jeff Fan
2015-04-01 07:51:15 +00:00
committed by vanjeff
parent 206f412113
commit 08021523f8
17 changed files with 283 additions and 667 deletions
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21
SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c
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@ -1,7 +1,7 @@
/** @file
Debug Agent library implementition for Dxe Core and Dxr modules.
Copyright (c) 2010 - 2014, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2010 - 2015, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@ -355,6 +355,7 @@ InitializeDebugAgent (
IA32_DESCRIPTOR IdtDescriptor;
IA32_DESCRIPTOR *Ia32Idtr;
IA32_IDT_ENTRY *Ia32IdtEntry;
UINT32 DebugTimerFrequency;
if (InitFlag == DEBUG_AGENT_INIT_DXE_AP) {
//
@ -398,10 +399,6 @@ InitializeDebugAgent (
mSaveIdtTableSize = IdtDescriptor.Limit + 1;
mSavedIdtTable = AllocateCopyPool (mSaveIdtTableSize, (VOID *) IdtDescriptor.Base);
//
// Initialize Debug Timer hardware and save its initial count
//
mDebugMpContext.DebugTimerInitCount = InitializeDebugTimer ();
//
// Check if Debug Agent initialized in DXE phase
//
Mailbox = GetMailboxFromConfigurationTable ();
@ -417,6 +414,11 @@ InitializeDebugAgent (
//
SetupDebugAgentEnviroment (Mailbox);
//
// Initialize Debug Timer hardware and save its initial count and frequency
//
mDebugMpContext.DebugTimerInitCount = InitializeDebugTimer (&DebugTimerFrequency);
UpdateMailboxContent (mMailboxPointer, DEBUG_MAILBOX_DEBUG_TIMER_FREQUENCY, DebugTimerFrequency);
//
// For DEBUG_AGENT_INIT_S3, needn't to install configuration table and EFI Serial IO protocol
// For DEBUG_AGENT_INIT_DXE_CORE, InternalConstructorWorker() will invoked in Constructor()
//
@ -496,10 +498,6 @@ InitializeDebugAgent (
mDxeCoreFlag = TRUE;
mMultiProcessorDebugSupport = TRUE;
//
// Initialize Debug Timer hardware and its initial count
//
mDebugMpContext.DebugTimerInitCount = InitializeDebugTimer ();
//
// Try to get mailbox from GUIDed HOB build in PEI
//
HobList = Context;
@ -509,6 +507,11 @@ InitializeDebugAgent (
//
SetupDebugAgentEnviroment (Mailbox);
//
// Initialize Debug Timer hardware and save its initial count and frequency
//
mDebugMpContext.DebugTimerInitCount = InitializeDebugTimer (&DebugTimerFrequency);
UpdateMailboxContent (mMailboxPointer, DEBUG_MAILBOX_DEBUG_TIMER_FREQUENCY, DebugTimerFrequency);
//
// Enable interrupt to receive Debug Timer interrupt
//
EnableInterrupts ();