Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
[linux-2.6.git] / arch / powerpc / include / asm / irqflags.h
1 /*
2  * IRQ flags handling
3  */
4 #ifndef _ASM_IRQFLAGS_H
5 #define _ASM_IRQFLAGS_H
6
7 #ifndef __ASSEMBLY__
8 /*
9  * Get definitions for arch_local_save_flags(x), etc.
10  */
11 #include <asm/hw_irq.h>
12
13 #else
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)  \
23         cmpdi   en,0;                           \
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);  \
32         stb     en,PACASOFTIRQEN(r13);          \
33 96:
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
41 #endif
42
43 #endif