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| author | Chen Liqin <liqin.chen@sunplusct.com> | 2009-08-30 10:26:23 +0800 |
|---|---|---|
| committer | Chen Liqin <liqin.chen@sunplusct.com> | 2009-08-30 10:26:23 +0800 |
| commit | d27eadc7612404b06f99888c02726ab7d5036e0f (patch) | |
| tree | ed32b38e1cd4cbc52506c27c8cc353161255c9d6 /arch/score/include/asm/irqflags.h | |
| parent | adda766193ea1cf3137484a9521972d080d0b7af (diff) | |
| parent | fbd85b0e26bab0a13dcf860f2c20e86cb0507b61 (diff) | |
Merge branch 'score' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic into for-linus
* 'score' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
score: clean up mm/init.c
score: make irq.h definitions local
score: cleanups: dead code, 0 as pointer, shadowed variables
score: fix function prototypes
score: add address space annotations
score: add missing #includes
score: move save arg5 and arg6 instruction in front of enable_irq
score: add prototypes for wrapped syscalls
score: remove init_mm
score: add generic sys_call_table
score: remove __{put,get}_user_unknown
score: unset __ARCH_WANT_IPC_PARSE_VERSION
score: update files according to review comments
score: add maintainers for score architecture
score: Add support for Sunplus S+core architecture
Diffstat (limited to 'arch/score/include/asm/irqflags.h')
| -rw-r--r-- | arch/score/include/asm/irqflags.h | 111 |
1 files changed, 111 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..92eeb33dd72 --- /dev/null +++ b/arch/score/include/asm/irqflags.h @@ -0,0 +1,111 @@ +#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;" \ + "ldi r9, 0x1;" \ + "and %0, %0, r9;" \ + : "=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 */ |