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Add some constants for the local APIC timer.

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John Baldwin 2004-12-23 20:35:07 +00:00
parent 21bc8faa44
commit e367f46738
1 changed files with 5 additions and 0 deletions
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5
sys/i386/include/apicreg.h
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@ -330,8 +330,13 @@ typedef struct IOAPIC ioapic_t;
#define APIC_LVTT_DS 0x00001000
#define APIC_LVTT_M 0x00010000
#define APIC_LVTT_TM 0x00020000
# define APIC_LVTT_TM_ONE_SHOT 0x00000000
# define APIC_LVTT_TM_PERIODIC 0x00020000
/* APIC timer current count */
#define APIC_TIMER_MAX_COUNT 0xffffffff
/* fields in TDCR */
#define APIC_TDCR_2 0x00
#define APIC_TDCR_4 0x01