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author | Yoshinori Sato <ysato@users.sourceforge.jp> | 2015-05-11 02:20:06 +0900 |
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committer | Yoshinori Sato <ysato@users.sourceforge.jp> | 2015-06-23 13:35:49 +0900 |
commit | d2a5f4999f6c211adf30d9788349e13988d6f2a7 (patch) | |
tree | 95f6ef1d8b1d4e3e078e462cc3ae73a4b519bc53 /arch/h8300/include/asm/irqflags.h | |
parent | asm-generic: Add common asm-offsets.h (diff) | |
download | linux-dev-d2a5f4999f6c211adf30d9788349e13988d6f2a7.tar.xz linux-dev-d2a5f4999f6c211adf30d9788349e13988d6f2a7.zip |
h8300: Assembly headers
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Diffstat (limited to 'arch/h8300/include/asm/irqflags.h')
-rw-r--r-- | arch/h8300/include/asm/irqflags.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/arch/h8300/include/asm/irqflags.h b/arch/h8300/include/asm/irqflags.h new file mode 100644 index 000000000000..5e1e3242e470 --- /dev/null +++ b/arch/h8300/include/asm/irqflags.h @@ -0,0 +1,96 @@ +#ifndef _H8300_IRQFLAGS_H +#define _H8300_IRQFLAGS_H + +#ifdef CONFIG_CPU_H8300H +typedef unsigned char h8300flags; + +static inline h8300flags arch_local_save_flags(void) +{ + h8300flags flags; + + __asm__ volatile ("stc ccr,%w0" : "=r" (flags)); + return flags; +} + +static inline void arch_local_irq_disable(void) +{ + __asm__ volatile ("orc #0xc0,ccr"); +} + +static inline void arch_local_irq_enable(void) +{ + __asm__ volatile ("andc #0x3f,ccr"); +} + +static inline h8300flags arch_local_irq_save(void) +{ + h8300flags flags; + + __asm__ volatile ("stc ccr,%w0\n\t" + "orc #0xc0,ccr" : "=r" (flags)); + return flags; +} + +static inline void arch_local_irq_restore(h8300flags flags) +{ + __asm__ volatile ("ldc %w0,ccr" : : "r" (flags) : "cc"); +} + +static inline int arch_irqs_disabled_flags(unsigned long flags) +{ + return (flags & 0xc0) == 0xc0; +} +#endif +#ifdef CONFIG_CPU_H8S +typedef unsigned short h8300flags; + +static inline h8300flags arch_local_save_flags(void) +{ + h8300flags flags; + + __asm__ volatile ("stc ccr,%w0\n\tstc exr,%x0" : "=r" (flags)); + return flags; +} + +static inline void arch_local_irq_disable(void) +{ + __asm__ volatile ("orc #0x80,ccr\n\t"); +} + +static inline void arch_local_irq_enable(void) +{ + __asm__ volatile ("andc #0x7f,ccr\n\t" + "andc #0xf0,exr\n\t"); +} + +static inline h8300flags arch_local_irq_save(void) +{ + h8300flags flags; + + __asm__ volatile ("stc ccr,%w0\n\t" + "stc exr,%x0\n\t" + "orc #0x80,ccr\n\t" + : "=r" (flags)); + return flags; +} + +static inline void arch_local_irq_restore(h8300flags flags) +{ + __asm__ volatile ("ldc %w0,ccr\n\t" + "ldc %x0,exr" + : : "r" (flags) : "cc"); +} + +static inline int arch_irqs_disabled_flags(h8300flags flags) +{ + return (flags & 0x0080) == 0x0080; +} + +#endif + +static inline int arch_irqs_disabled(void) +{ + return arch_irqs_disabled_flags(arch_local_save_flags()); +} + +#endif /* _H8300_IRQFLAGS_H */ |