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Use macro instead of hard code value for timer register address in local APIC 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@6065 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
klu2 2008-09-28 07:30:16 +00:00
parent 3bb398eb64
commit 9cd1d1c1d5
1 changed files with 8 additions and 4 deletions
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12
MdePkg/Library/SecPeiDxeTimerLibCpu/X86TimerLib.c
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@ -18,6 +18,10 @@
#include <Library/IoLib.h> #include <Library/IoLib.h>
#include <Library/PcdLib.h> #include <Library/PcdLib.h>
#define APIC_LVTERR 0x370
#define APIC_TMICT 0x380
#define APIC_TMCCT 0x390
#define APIC_TDCR 0x3e0
// //
// The following array is used in calculating the frequency of local APIC // The following array is used in calculating the frequency of local APIC
@ -62,7 +66,7 @@ InternalX86GetTimerFrequency (
{ {
return return
PcdGet32(PcdFSBClock) / PcdGet32(PcdFSBClock) /
mTimerLibLocalApicDivisor[MmioBitFieldRead32 (ApicBase + 0x3e0, 0, 3)]; mTimerLibLocalApicDivisor[MmioBitFieldRead32 (ApicBase + APIC_TDCR, 0, 3)];
} }
/** /**
@ -79,7 +83,7 @@ InternalX86GetTimerTick (
IN UINTN ApicBase IN UINTN ApicBase
) )
{ {
return MmioRead32 (ApicBase + 0x390); return MmioRead32 (ApicBase + APIC_TMCCT);
} }
/** /**
@ -232,12 +236,12 @@ GetPerformanceCounterProperties (
ApicBase = InternalX86GetApicBase (); ApicBase = InternalX86GetApicBase ();
if (StartValue != NULL) { if (StartValue != NULL) {
*StartValue = MmioRead32 (ApicBase + 0x380); *StartValue = MmioRead32 (ApicBase + APIC_TMICT);
} }
if (EndValue != NULL) { if (EndValue != NULL) {
*EndValue = 0; *EndValue = 0;
} }
return (UINT64) InternalX86GetTimerFrequency (ApicBase);; return (UINT64) InternalX86GetTimerFrequency (ApicBase);
} }