diff options
author | 2016-04-11 10:41:07 +0300 | |
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committer | 2016-04-13 08:17:18 +0300 | |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/arch/h8300/include/asm/irqflags.h | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/arch/h8300/include/asm/irqflags.h')
-rw-r--r-- | kernel/arch/h8300/include/asm/irqflags.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/kernel/arch/h8300/include/asm/irqflags.h b/kernel/arch/h8300/include/asm/irqflags.h new file mode 100644 index 000000000..5e1e3242e --- /dev/null +++ b/kernel/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 */ |