sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

SourceLevelDebugPkg: Use CPU Local APIC timer to handle timeout.

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

14
SourceLevelDebugPkg/Library/DebugAgent/SmmDebugAgent/SmmDebugAgentLib.c
View File

@ -1,7 +1,7 @@
/** @file
Debug Agent library implementition.
Copyright (c) 2010 - 2013, 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
@ -189,6 +189,7 @@ InitializeDebugAgent (
UINT16 IdtEntryCount;
DEBUG_AGENT_MAILBOX *Mailbox;
UINT64 *MailboxLocation;
UINT32 DebugTimerFrequency;
switch (InitFlag) {
case DEBUG_AGENT_INIT_SMM:
@ -236,6 +237,12 @@ InitializeDebugAgent (
// Initialized Debug Agent
//
InitializeDebugIdt ();
//
// Initialize Debug Timer hardware and save its frequency
//
InitializeDebugTimer (&DebugTimerFrequency);
UpdateMailboxContent (mMailboxPointer, DEBUG_MAILBOX_DEBUG_TIMER_FREQUENCY, DebugTimerFrequency);
DebugPortHandle = (UINT64) (UINTN)DebugPortInitialize ((DEBUG_PORT_HANDLE) (UINTN)Mailbox->DebugPortHandle, NULL);
UpdateMailboxContent (Mailbox, DEBUG_MAILBOX_DEBUG_PORT_HANDLE_INDEX, DebugPortHandle);
mMailboxPointer = Mailbox;
@ -329,9 +336,10 @@ InitializeDebugAgent (
InitializeDebugIdt ();
//
// Initialize Debug Timer hardware and enable interrupt.
// Initialize Debug Timer hardware and save its frequency
//
InitializeDebugTimer ();
InitializeDebugTimer (&DebugTimerFrequency);
UpdateMailboxContent (mMailboxPointer, DEBUG_MAILBOX_DEBUG_TIMER_FREQUENCY, DebugTimerFrequency);
EnableInterrupts ();
FindAndReportModuleImageInfo (SIZE_4KB);