diff options
| author | Frederic Weisbecker <fweisbec@gmail.com> | 2009-09-23 23:08:43 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2009-09-23 23:08:43 +0200 |
| commit | d7a4b414eed51f1653bb05ebe84122bf9a7ae18b (patch) | |
| tree | bd6603a0c27de4c138a1767871897e9cd3e1a1d2 /arch/score/include/asm/irqflags.h | |
| parent | 1f0ab40976460bc4673fa204ce917a725185d8f2 (diff) | |
| parent | a724eada8c2a7b62463b73ccf73fd0bb6e928aeb (diff) | |
Merge commit 'linus/master' into tracing/kprobes
Conflicts:
kernel/trace/Makefile
kernel/trace/trace.h
kernel/trace/trace_event_types.h
kernel/trace/trace_export.c
Merge reason:
Sync with latest significant tracing core changes.
Diffstat (limited to 'arch/score/include/asm/irqflags.h')
| -rw-r--r-- | arch/score/include/asm/irqflags.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/arch/score/include/asm/irqflags.h b/arch/score/include/asm/irqflags.h new file mode 100644 index 00000000000..690a6cae729 --- /dev/null +++ b/arch/score/include/asm/irqflags.h @@ -0,0 +1,109 @@ +#ifndef _ASM_SCORE_IRQFLAGS_H +#define _ASM_SCORE_IRQFLAGS_H + +#ifndef __ASSEMBLY__ + +#define raw_local_irq_save(x) \ +{ \ + __asm__ __volatile__( \ + "mfcr r8, cr0;" \ + "li r9, 0xfffffffe;" \ + "nop;" \ + "mv %0, r8;" \ + "and r8, r8, r9;" \ + "mtcr r8, cr0;" \ + "nop;" \ + "nop;" \ + "nop;" \ + "nop;" \ + "nop;" \ + : "=r" (x) \ + : \ + : "r8", "r9" \ + ); \ +} + +#define raw_local_irq_restore(x) \ +{ \ + __asm__ __volatile__( \ + "mfcr r8, cr0;" \ + "ldi r9, 0x1;" \ + "and %0, %0, r9;" \ + "or r8, r8, %0;" \ + "mtcr r8, cr0;" \ + "nop;" \ + "nop;" \ + "nop;" \ + "nop;" \ + "nop;" \ + : \ + : "r"(x) \ + : "r8", "r9" \ + ); \ +} + +#define raw_local_irq_enable(void) \ +{ \ + __asm__ __volatile__( \ + "mfcr\tr8,cr0;" \ + "nop;" \ + "nop;" \ + "ori\tr8,0x1;" \ + "mtcr\tr8,cr0;" \ + "nop;" \ + "nop;" \ + "nop;" \ + "nop;" \ + "nop;" \ + : \ + : \ + : "r8"); \ +} + +#define raw_local_irq_disable(void) \ +{ \ + __asm__ __volatile__( \ + "mfcr\tr8,cr0;" \ + "nop;" \ + "nop;" \ + "srli\tr8,r8,1;" \ + "slli\tr8,r8,1;" \ + "mtcr\tr8,cr0;" \ + "nop;" \ + "nop;" \ + "nop;" \ + "nop;" \ + "nop;" \ + : \ + : \ + : "r8"); \ +} + +#define raw_local_save_flags(x) \ +{ \ + __asm__ __volatile__( \ + "mfcr r8, cr0;" \ + "nop;" \ + "nop;" \ + "mv %0, r8;" \ + "nop;" \ + "nop;" \ + "nop;" \ + "nop;" \ + "nop;" \ + "ldi r9, 0x1;" \ + "and %0, %0, r9;" \ + : "=r" (x) \ + : \ + : "r8", "r9" \ + ); \ +} + +static inline int raw_irqs_disabled_flags(unsigned long flags) +{ + return !(flags & 1); +} + +#endif + +#endif /* _ASM_SCORE_IRQFLAGS_H */ |