diff options
Diffstat (limited to 'include/asm-sparc64/pil.h')
-rw-r--r-- | include/asm-sparc64/pil.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/include/asm-sparc64/pil.h b/include/asm-sparc64/pil.h index 79f827eb3f5d..72927749aebf 100644 --- a/include/asm-sparc64/pil.h +++ b/include/asm-sparc64/pil.h | |||
@@ -5,9 +5,9 @@ | |||
5 | /* To avoid some locking problems, we hard allocate certain PILs | 5 | /* To avoid some locking problems, we hard allocate certain PILs |
6 | * for SMP cross call messages that must do a etrap/rtrap. | 6 | * for SMP cross call messages that must do a etrap/rtrap. |
7 | * | 7 | * |
8 | * A cli() does not block the cross call delivery, so when SMP | 8 | * A local_irq_disable() does not block the cross call delivery, so |
9 | * locking is an issue we reschedule the event into a PIL interrupt | 9 | * when SMP locking is an issue we reschedule the event into a PIL |
10 | * which is blocked by cli(). | 10 | * interrupt which is blocked by local_irq_disable(). |
11 | * | 11 | * |
12 | * In fact any XCALL which has to etrap/rtrap has a problem because | 12 | * In fact any XCALL which has to etrap/rtrap has a problem because |
13 | * it is difficult to prevent rtrap from running BH's, and that would | 13 | * it is difficult to prevent rtrap from running BH's, and that would |
@@ -17,6 +17,7 @@ | |||
17 | #define PIL_SMP_RECEIVE_SIGNAL 2 | 17 | #define PIL_SMP_RECEIVE_SIGNAL 2 |
18 | #define PIL_SMP_CAPTURE 3 | 18 | #define PIL_SMP_CAPTURE 3 |
19 | #define PIL_SMP_CTX_NEW_VERSION 4 | 19 | #define PIL_SMP_CTX_NEW_VERSION 4 |
20 | #define PIL_DEVICE_IRQ 5 | ||
20 | 21 | ||
21 | #ifndef __ASSEMBLY__ | 22 | #ifndef __ASSEMBLY__ |
22 | #define PIL_RESERVED(PIL) ((PIL) == PIL_SMP_CALL_FUNC || \ | 23 | #define PIL_RESERVED(PIL) ((PIL) == PIL_SMP_CALL_FUNC || \ |