intrdefs.h revision 1.2.4.2
1 1.2.4.2 kent /* $NetBSD: intrdefs.h,v 1.2.4.2 2005/04/29 11:28:29 kent Exp $ */ 2 1.2.4.2 kent /* NetBSD intrdefs.h,v 1.3 2003/06/16 20:01:06 thorpej Exp */ 3 1.2.4.2 kent 4 1.2.4.2 kent #ifndef _XEN_INTRDEFS_H 5 1.2.4.2 kent #define _XEN_INTRDEFS_H 6 1.2.4.2 kent 7 1.2.4.2 kent /* 8 1.2.4.2 kent * Interrupt priority levels. 9 1.2.4.2 kent * 10 1.2.4.2 kent * There are tty, network and disk drivers that use free() at interrupt 11 1.2.4.2 kent * time, so imp > (tty | net | bio). 12 1.2.4.2 kent * 13 1.2.4.2 kent * Since run queues may be manipulated by both the statclock and tty, 14 1.2.4.2 kent * network, and disk drivers, clock > imp. 15 1.2.4.2 kent * 16 1.2.4.2 kent * IPL_HIGH must block everything that can manipulate a run queue. 17 1.2.4.2 kent * 18 1.2.4.2 kent * We need serial drivers to run at the absolute highest priority to 19 1.2.4.2 kent * avoid overruns, so serial > high. 20 1.2.4.2 kent * These are also used as index in the struct iplsource[] array, so each 21 1.2.4.2 kent * soft interrupt needs its own IPL level, not shared with anything else. 22 1.2.4.2 kent * 23 1.2.4.2 kent */ 24 1.2.4.2 kent 25 1.2.4.2 kent #define IPL_NONE 0x0 /* nothing */ 26 1.2.4.2 kent #define IPL_SOFTCLOCK 0x1 /* timeouts */ 27 1.2.4.2 kent #define IPL_SOFTNET 0x2 /* protocol stacks */ 28 1.2.4.2 kent #define IPL_SOFTXENEVT 0x3 /* /dev/xenevt */ 29 1.2.4.2 kent #define IPL_BIO 0x4 /* block I/O */ 30 1.2.4.2 kent #define IPL_NET 0x5 /* network */ 31 1.2.4.2 kent #define IPL_SOFTSERIAL 0x6 /* serial */ 32 1.2.4.2 kent #define IPL_CTRL 0x7 /* control events */ 33 1.2.4.2 kent #define IPL_TTY 0x8 /* terminal */ 34 1.2.4.2 kent #define IPL_VM 0x9 /* memory allocation */ 35 1.2.4.2 kent #define IPL_AUDIO 0xa /* audio */ 36 1.2.4.2 kent #define IPL_CLOCK 0xb /* clock */ 37 1.2.4.2 kent #define IPL_SCHED IPL_CLOCK 38 1.2.4.2 kent #define IPL_HIGH 0xc /* everything */ 39 1.2.4.2 kent #define IPL_SERIAL 0xc /* serial */ 40 1.2.4.2 kent #define IPL_IPI 0xd /* inter-processor interrupts */ 41 1.2.4.2 kent #define IPL_DEBUG 0xe /* debug events */ 42 1.2.4.2 kent #define IPL_DIE 0xf /* die events */ 43 1.2.4.2 kent #define NIPL 16 44 1.2.4.2 kent 45 1.2.4.2 kent /* Soft interrupt masks. */ 46 1.2.4.2 kent #define SIR_CLOCK IPL_SOFTCLOCK 47 1.2.4.2 kent #define SIR_NET IPL_SOFTNET 48 1.2.4.2 kent #define SIR_SERIAL IPL_SOFTSERIAL 49 1.2.4.2 kent #define SIR_XENEVT IPL_SOFTXENEVT 50 1.2.4.2 kent 51 1.2.4.2 kent #define IREENT_MAGIC 0x18041969 52 1.2.4.2 kent 53 1.2.4.2 kent /* Interrupt sharing types (for ISA) */ 54 1.2.4.2 kent #define IST_NONE 0 /* none */ 55 1.2.4.2 kent #define IST_PULSE 1 /* pulsed */ 56 1.2.4.2 kent #define IST_EDGE 2 /* edge-triggered */ 57 1.2.4.2 kent #define IST_LEVEL 3 /* level-triggered */ 58 1.2.4.2 kent 59 1.2.4.2 kent #endif /* _XEN_INTRDEFS_H */ 60
Indexes created Tue Oct 14 11:09:46 GMT 2025