| Ingo Molnar | de30a2b | 2006-07-03 00:24:42 -0700 | [diff] [blame] | 1 | /* |
| Ingo Molnar | de30a2b | 2006-07-03 00:24:42 -0700 | [diff] [blame] | 2 | * IRQ flags handling |
| Ingo Molnar | de30a2b | 2006-07-03 00:24:42 -0700 | [diff] [blame] | 3 | */ |
| 4 | #ifndef _ASM_IRQFLAGS_H |
| 5 | #define _ASM_IRQFLAGS_H |
| 6 | |
| Benjamin Herrenschmidt | 945feb1 | 2008-04-17 14:35:01 +1000 | [diff] [blame] | 7 | #ifndef __ASSEMBLY__ |
| Ingo Molnar | de30a2b | 2006-07-03 00:24:42 -0700 | [diff] [blame] | 8 | /* |
| 9 | * Get definitions for raw_local_save_flags(x), etc. |
| 10 | */ |
| Stephen Rothwell | b8b572e | 2008-08-01 15:20:30 +1000 | [diff] [blame] | 11 | #include <asm/hw_irq.h> |
| Ingo Molnar | de30a2b | 2006-07-03 00:24:42 -0700 | [diff] [blame] | 12 | |
| Ingo Molnar | de30a2b | 2006-07-03 00:24:42 -0700 | [diff] [blame] | 13 | #else |
| Benjamin Herrenschmidt | 945feb1 | 2008-04-17 14:35:01 +1000 | [diff] [blame] | 14 | #ifdef CONFIG_TRACE_IRQFLAGS |
| 15 | /* |
| 16 | * Most of the CPU's IRQ-state tracing is done from assembly code; we |
| 17 | * have to call a C function so call a wrapper that saves all the |
| 18 | * C-clobbered registers. |
| 19 | */ |
| 20 | #define TRACE_ENABLE_INTS bl .trace_hardirqs_on |
| 21 | #define TRACE_DISABLE_INTS bl .trace_hardirqs_off |
| 22 | #define TRACE_AND_RESTORE_IRQ_PARTIAL(en,skip) \ |
| Benjamin Herrenschmidt | 22b8f9e | 2008-08-15 17:11:31 +1000 | [diff] [blame] | 23 | cmpdi en,0; \ |
| Benjamin Herrenschmidt | 945feb1 | 2008-04-17 14:35:01 +1000 | [diff] [blame] | 24 | bne 95f; \ |
| 25 | stb en,PACASOFTIRQEN(r13); \ |
| 26 | bl .trace_hardirqs_off; \ |
| 27 | b skip; \ |
| 28 | 95: bl .trace_hardirqs_on; \ |
| 29 | li en,1; |
| 30 | #define TRACE_AND_RESTORE_IRQ(en) \ |
| 31 | TRACE_AND_RESTORE_IRQ_PARTIAL(en,96f); \ |
| Benjamin Herrenschmidt | 22b8f9e | 2008-08-15 17:11:31 +1000 | [diff] [blame] | 32 | stb en,PACASOFTIRQEN(r13); \ |
| 33 | 96: |
| Benjamin Herrenschmidt | 945feb1 | 2008-04-17 14:35:01 +1000 | [diff] [blame] | 34 | #else |
| 35 | #define TRACE_ENABLE_INTS |
| 36 | #define TRACE_DISABLE_INTS |
| 37 | #define TRACE_AND_RESTORE_IRQ_PARTIAL(en,skip) |
| 38 | #define TRACE_AND_RESTORE_IRQ(en) \ |
| 39 | stb en,PACASOFTIRQEN(r13) |
| 40 | #endif |
| Ingo Molnar | de30a2b | 2006-07-03 00:24:42 -0700 | [diff] [blame] | 41 | #endif |
| 42 | |
| 43 | #endif |