/* * C6X IRQ flag handling * * Copyright (C) 2010 Texas Instruments Incorporated * Written by Mark Salter (msalter@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public Licence * as published by the Free Software Foundation; either version * 2 of the Licence, or (at your option) any later version. */ #ifndef _ASM_IRQFLAGS_H #define _ASM_IRQFLAGS_H #ifndef __ASSEMBLY__ /* read interrupt enabled status */ static inline unsigned long arch_local_save_flags(void) { unsigned long flags; asm volatile (" mvc .s2 CSR,%0\n" : "=b"(flags)); return flags; } /* set interrupt enabled status */ static inline void arch_local_irq_restore(unsigned long flags) { asm volatile (" mvc .s2 %0,CSR\n" : : "b"(flags) : "memory"); } /* unconditionally enable interrupts */ static inline void arch_local_irq_enable(void) { unsigned long flags = arch_local_save_flags(); flags |= 1; arch_local_irq_restore(flags); } /* unconditionally disable interrupts */ static inline void arch_local_irq_disable(void) { unsigned long flags = arch_local_save_flags(); flags &= ~1; arch_local_irq_restore(flags); } /* get status and disable interrupts */ static inline unsigned long arch_local_irq_save(void) { unsigned long flags; flags = arch_local_save_flags(); arch_local_irq_restore(flags & ~1); return flags; } /* test flags */ static inline int arch_irqs_disabled_flags(unsigned long flags) { return (flags & 1) == 0; } /* test hardware interrupt enable bit */ static inline int arch_irqs_disabled(void) { return arch_irqs_disabled_flags(arch_local_save_flags()); } #endif /* __ASSEMBLY__ */ #endif /* __ASM_IRQFLAGS_H */
Name | Type | Size | Permission | Actions |
---|---|---|---|---|
Kbuild | File | 865 B | 0644 |
|
asm-offsets.h | File | 35 B | 0644 |
|
bitops.h | File | 2.17 KB | 0644 |
|
bug.h | File | 705 B | 0644 |
|
cache.h | File | 3.1 KB | 0644 |
|
cacheflush.h | File | 2.05 KB | 0644 |
|
checksum.h | File | 947 B | 0644 |
|
clock.h | File | 3.51 KB | 0644 |
|
cmpxchg.h | File | 1.57 KB | 0644 |
|
delay.h | File | 1.67 KB | 0644 |
|
dma-mapping.h | File | 911 B | 0644 |
|
dscr.h | File | 909 B | 0644 |
|
elf.h | File | 3.18 KB | 0644 |
|
flat.h | File | 677 B | 0644 |
|
ftrace.h | File | 97 B | 0644 |
|
hardirq.h | File | 572 B | 0644 |
|
irq.h | File | 1.59 KB | 0644 |
|
irqflags.h | File | 1.67 KB | 0644 |
|
linkage.h | File | 497 B | 0644 |
|
megamod-pic.h | File | 213 B | 0644 |
|
module.h | File | 639 B | 0644 |
|
page.h | File | 312 B | 0644 |
|
pgtable.h | File | 2.29 KB | 0644 |
|
processor.h | File | 3.31 KB | 0644 |
|
procinfo.h | File | 673 B | 0644 |
|
ptrace.h | File | 998 B | 0644 |
|
sections.h | File | 287 B | 0644 |
|
setup.h | File | 914 B | 0644 |
|
soc.h | File | 929 B | 0644 |
|
special_insns.h | File | 1.82 KB | 0644 |
|
string.h | File | 616 B | 0644 |
|
switch_to.h | File | 992 B | 0644 |
|
syscall.h | File | 2.2 KB | 0644 |
|
syscalls.h | File | 1.73 KB | 0644 |
|
thread_info.h | File | 2.63 KB | 0644 |
|
timer64.h | File | 154 B | 0644 |
|
timex.h | File | 867 B | 0644 |
|
tlb.h | File | 192 B | 0644 |
|
traps.h | File | 1.29 KB | 0644 |
|
uaccess.h | File | 2.14 KB | 0644 |
|
unaligned.h | File | 4.63 KB | 0644 |
|