1 #ifndef _SPARC64_PIL_H
2 #define _SPARC64_PIL_H
3 
4 /* To avoid some locking problems, we hard allocate certain PILs
5  * for SMP cross call messages that must do a etrap/rtrap.
6  *
7  * A local_irq_disable() does not block the cross call delivery, so
8  * when SMP locking is an issue we reschedule the event into a PIL
9  * interrupt which is blocked by local_irq_disable().
10  *
11  * In fact any XCALL which has to etrap/rtrap has a problem because
12  * it is difficult to prevent rtrap from running BH's, and that would
13  * need to be done if the XCALL arrived while %pil==PIL_NORMAL_MAX.
14  *
15  * Finally, in order to handle profiling events even when a
16  * local_irq_disable() is in progress, we only disable up to level 14
17  * interrupts.  Profile counter overflow interrupts arrive at level
18  * 15.
19  */
20 #define PIL_SMP_CALL_FUNC	1
21 #define PIL_SMP_RECEIVE_SIGNAL	2
22 #define PIL_SMP_CAPTURE		3
23 #define PIL_SMP_CTX_NEW_VERSION	4
24 #define PIL_DEVICE_IRQ		5
25 #define PIL_SMP_CALL_FUNC_SNGL	6
26 #define PIL_DEFERRED_PCR_WORK	7
27 #define PIL_KGDB_CAPTURE	8
28 #define PIL_NORMAL_MAX		14
29 #define PIL_NMI			15
30 
31 #endif /* !(_SPARC64_PIL_H) */
32