diff options
| author |   Ingo Molnar <mingo@elte.hu> | 2006-07-03 00:24:42 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-03 15:27:03 -0700 |
| commit | de30a2b355ea85350ca2f58f3b9bf4e5bc007986 (patch) | |
| tree | 0bef670aff65614b3c78ca13b20307355b8221d5 /include/asm-powerpc | |
| parent | [PATCH] lockdep: stacktrace subsystem, s390 support (diff) | |
| download | linux-dev-de30a2b355ea85350ca2f58f3b9bf4e5bc007986.tar.xz linux-dev-de30a2b355ea85350ca2f58f3b9bf4e5bc007986.zip | |
[PATCH] lockdep: irqtrace subsystem, core
Accurate hard-IRQ-flags and softirq-flags state tracing.
This allows us to attach extra functionality to IRQ flags on/off
events (such as trace-on/off).
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-powerpc')
| -rw-r--r-- | include/asm-powerpc/irqflags.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/asm-powerpc/irqflags.h b/include/asm-powerpc/irqflags.h new file mode 100644 index 000000000000..7970cbaeaa54 --- /dev/null +++ b/include/asm-powerpc/irqflags.h @@ -0,0 +1,31 @@ +/* + * include/asm-powerpc/irqflags.h + * + * IRQ flags handling + * + * This file gets included from lowlevel asm headers too, to provide + * wrapped versions of the local_irq_*() APIs, based on the + * raw_local_irq_*() macros from the lowlevel headers. + */ +#ifndef _ASM_IRQFLAGS_H +#define _ASM_IRQFLAGS_H + +/* + * Get definitions for raw_local_save_flags(x), etc. + */ +#include <asm-powerpc/hw_irq.h> + +/* + * Do the CPU's IRQ-state tracing from assembly code. We call a + * C function, so save all the C-clobbered registers: + */ +#ifdef CONFIG_TRACE_IRQFLAGS + +#error No support on PowerPC yet for CONFIG_TRACE_IRQFLAGS + +#else +# define TRACE_IRQS_ON +# define TRACE_IRQS_OFF +#endif + +#endif |