diff options
Diffstat (limited to 'ioapic.h')
| -rw-r--r-- | ioapic.h | 68 |
1 files changed, 33 insertions, 35 deletions
@@ -1,7 +1,7 @@ -#define IO_APIC_BASE 0xFEC00000 /* default physical locations of an IO APIC */ -#define IOAPIC_WINDOW 0x10 /* window register offset */ +#define IO_APIC_BASE 0xFEC00000 // default physical locations of an IO APIC +#define IOAPIC_WINDOW 0x10 // window register offset -/* constants relating to APIC ID registers */ +// Constants relating to APIC ID registers #define APIC_ID_MASK 0xff000000 #define APIC_ID_SHIFT 24 #define APIC_ID_CLUSTER 0xf0 @@ -10,12 +10,12 @@ #define APIC_MAX_INTRACLUSTER_ID 3 #define APIC_ID_CLUSTER_SHIFT 4 -/* fields in VER */ +// Fields in VER #define APIC_VER_VERSION 0x000000ff #define APIC_VER_MAXLVT 0x00ff0000 #define MAXLVTSHIFT 16 -/* Indexes into IO APIC */ +// Indexes into IO APIC #define IOAPIC_ID 0x00 #define IOAPIC_VER 0x01 #define IOAPIC_ARB 0x02 @@ -45,46 +45,44 @@ #define IOAPIC_REDTBL22 (IOAPIC_REDTBL+0x2c) #define IOAPIC_REDTBL23 (IOAPIC_REDTBL+0x2e) -/* - * fields in the IO APIC's redirection table entries - */ -#define IOART_DEST APIC_ID_MASK /* broadcast addr: all APICs */ +// Fields in the IO APIC's redirection table entries +#define IOART_DEST APIC_ID_MASK // broadcast addr: all APICs -#define IOART_RESV 0x00fe0000 /* reserved */ +#define IOART_RESV 0x00fe0000 // reserved -#define IOART_INTMASK 0x00010000 /* R/W: INTerrupt mask */ -#define IOART_INTMCLR 0x00000000 /* clear, allow INTs */ -#define IOART_INTMSET 0x00010000 /* set, inhibit INTs */ +#define IOART_INTMASK 0x00010000 // R/W: INTerrupt mask +#define IOART_INTMCLR 0x00000000 // clear, allow INTs +#define IOART_INTMSET 0x00010000 // set, inhibit INTs -#define IOART_TRGRMOD 0x00008000 /* R/W: trigger mode */ -#define IOART_TRGREDG 0x00000000 /* edge */ -#define IOART_TRGRLVL 0x00008000 /* level */ +#define IOART_TRGRMOD 0x00008000 // R/W: trigger mode +#define IOART_TRGREDG 0x00000000 // edge +#define IOART_TRGRLVL 0x00008000 // level -#define IOART_REM_IRR 0x00004000 /* RO: remote IRR */ +#define IOART_REM_IRR 0x00004000 // RO: remote IRR -#define IOART_INTPOL 0x00002000 /* R/W: INT input pin polarity */ -#define IOART_INTAHI 0x00000000 /* active high */ -#define IOART_INTALO 0x00002000 /* active low */ +#define IOART_INTPOL 0x00002000 // R/W: INT input pin polarity +#define IOART_INTAHI 0x00000000 // active high +#define IOART_INTALO 0x00002000 // active low -#define IOART_DELIVS 0x00001000 /* RO: delivery status */ +#define IOART_DELIVS 0x00001000 // RO: delivery status -#define IOART_DESTMOD 0x00000800 /* R/W: destination mode */ -#define IOART_DESTPHY 0x00000000 /* physical */ -#define IOART_DESTLOG 0x00000800 /* logical */ +#define IOART_DESTMOD 0x00000800 // R/W: destination mode +#define IOART_DESTPHY 0x00000000 // physical +#define IOART_DESTLOG 0x00000800 // logical -#define IOART_DELMOD 0x00000700 /* R/W: delivery mode */ -#define IOART_DELFIXED 0x00000000 /* fixed */ -#define IOART_DELLOPRI 0x00000100 /* lowest priority */ -#define IOART_DELSMI 0x00000200 /* System Management INT */ -#define IOART_DELRSV1 0x00000300 /* reserved */ -#define IOART_DELNMI 0x00000400 /* NMI signal */ -#define IOART_DELINIT 0x00000500 /* INIT signal */ -#define IOART_DELRSV2 0x00000600 /* reserved */ -#define IOART_DELEXINT 0x00000700 /* External INTerrupt */ +#define IOART_DELMOD 0x00000700 // R/W: delivery mode +#define IOART_DELFIXED 0x00000000 // fixed +#define IOART_DELLOPRI 0x00000100 // lowest priority +#define IOART_DELSMI 0x00000200 // System Management INT +#define IOART_DELRSV1 0x00000300 // reserved +#define IOART_DELNMI 0x00000400 // NMI signal +#define IOART_DELINIT 0x00000500 // INIT signal +#define IOART_DELRSV2 0x00000600 // reserved +#define IOART_DELEXINT 0x00000700 // External INTerrupt -#define IOART_INTVEC 0x000000ff /* R/W: INTerrupt vector field */ +#define IOART_INTVEC 0x000000ff // R/W: INTerrupt vector field -/* fields in VER */ +// Fields in VER #define IOART_VER_VERSION 0x000000ff #define IOART_VER_MAXREDIR 0x00ff0000 #define MAXREDIRSHIFT 16 |