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/*
* Copyright (c) 2006-2008 Advanced Micro Devices,Inc. ("AMD").
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of the
* License, or (at your option) any later version.
*
* This code is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307 USA
*/
//* Function: *
//* This file contains the code for recording event history.
#include "VSA2.H"
#include "SYSMGR.H"
#include "PROTOS.H"
extern EVENT_ENTRY Events[];
extern ULONG MsgPacket[];
extern UCHAR VSM_Filter;
#if HISTORY
EVENT NonReportableEvents[] = {
EVENT_A20,
EVENT_GRAPHICS,
EVENT_ACPI_TIMER
};
#define UNREPORT_COUNT (sizeof(NonReportableEvents)/sizeof(EVENT))
//
// Event history
//
EVENT_HISTORY History[HISTORY];
int HistoryWrap = 0;
int HistoryStart = 0;
int HistoryEnd = 0;
//*****************************************************************************
//
// Record the event history
//
//*****************************************************************************
void Keep_History(EVENT Event, EVENT EventIndex)
{ int i;
ULONG ParamMask, Param2;
UCHAR VSM_Type;
register EVENT_ENTRY * EventPtr;
EventPtr = &Events[EventIndex];
VSM_Type = Get_VSM_Type(EventPtr->Vsm);
// Filter out VSM(s)
if (VSM_Filter != VSM_ANY && VSM_Type != VSM_Filter)
return;
//
// Filter events from reporting
//
for (i=0; i < UNREPORT_COUNT; i++) {
if (Event == NonReportableEvents[i])
return;
}
// Generate mask for Param1
ParamMask = 0xFFFFFFFF;
Param2 = EventPtr->Param2;
switch (Event) {
case EVENT_PCI_TRAP:
// Report all PCI events together by PCI function
ParamMask = ~Param2;
break;
case EVENT_GPIO:
// Get current edge
Param2 = EventPtr->CurrentEdge;
break;
case EVENT_SOFTWARE_SMI:
// Don't report APM calls CPU_Busy or CPU_Idle
if ((EventPtr->Param1 & 0xFF00) == 0x5300) {
switch (EventPtr->Param1 & 0x00FF) {
case 0x05:
case 0x06:
return;
}
break;
}
break;
case EVENT_VIRTUAL_REGISTER:
// Report all VR events together by classes
ParamMask = 0x0000FF00;
break;
}
// If it's the same event for the same VSM...
if ((History[HistoryEnd].Event == Event) &&
(History[HistoryEnd].Vsm == EventPtr->Vsm) ) {
switch (Event) {
case EVENT_IO_TRAP:
if (History[HistoryEnd].Param1 != (MsgPacket[2] & 0x0000FFFFL)) {
break;
}
// Events to be recorded together if (Param1 & ParamMask) matches
case EVENT_PCI_TRAP:
case EVENT_SOFTWARE_SMI:
case EVENT_VIRTUAL_REGISTER:
if (History[HistoryEnd].Param1 != (MsgPacket[1] & ParamMask)) {
break;
}
default:
// Record together if 1st two parameters match
if (History[HistoryEnd].Param1 == EventPtr->Param1 &&
History[HistoryEnd].Param2 == EventPtr->Param2 ) {
History[HistoryEnd].Count++;
Store_Timestamp(&History[HistoryEnd].TimeStamp);
return;
}
} // end switch
}
//
// Report event in a new history entry.
//
// Increment HistoryEnd unless it's the 1st event
if (History[HistoryEnd].Vsm) {
HistoryEnd++;
if (HistoryEnd >= HISTORY) {
HistoryEnd = 0;
HistoryWrap = 1;
}
// Increment HistoryStart index too if HistoryEnd has wrapped
if (HistoryWrap) {
HistoryStart++;
if (HistoryStart >= HISTORY)
HistoryStart = 0;
}
}
History[HistoryEnd].Vsm = EventPtr->Vsm;
History[HistoryEnd].Event = Event;
History[HistoryEnd].Param1 = MsgPacket[1] & ParamMask;
History[HistoryEnd].Param2 = Param2;
History[HistoryEnd].Count = 1;
Store_Timestamp(&History[HistoryEnd].TimeStamp);
}
void Initialize_History(void)
{
// Initialize timestamp field of history buffer entry "previous" to 1st entry
Store_Timestamp(&History[HISTORY-1].TimeStamp);
HistoryWrap = 0;
HistoryStart = 0;
HistoryEnd = 0;
}
#else
void Initialize_History(void) { }
#endif
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