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Diffstat (limited to 'arch/um')
-rw-r--r--arch/um/include/asm/system.h49
1 files changed, 32 insertions, 17 deletions
diff --git a/arch/um/include/asm/system.h b/arch/um/include/asm/system.h
index 93af1cf0907d..68a90ecd1450 100644
--- a/arch/um/include/asm/system.h
+++ b/arch/um/include/asm/system.h
@@ -8,23 +8,38 @@ extern int set_signals(int enable);
8extern void block_signals(void); 8extern void block_signals(void);
9extern void unblock_signals(void); 9extern void unblock_signals(void);
10 10
11#define local_save_flags(flags) do { typecheck(unsigned long, flags); \ 11static inline unsigned long arch_local_save_flags(void)
12 (flags) = get_signals(); } while(0) 12{
13#define local_irq_restore(flags) do { typecheck(unsigned long, flags); \ 13 return get_signals();
14 set_signals(flags); } while(0) 14}
15 15
16#define local_irq_save(flags) do { local_save_flags(flags); \ 16static inline void arch_local_irq_restore(unsigned long flags)
17 local_irq_disable(); } while(0) 17{
18 18 set_signals(flags);
19#define local_irq_enable() unblock_signals() 19}
20#define local_irq_disable() block_signals() 20
21 21static inline void arch_local_irq_enable(void)
22#define irqs_disabled() \ 22{
23({ \ 23 unblock_signals();
24 unsigned long flags; \ 24}
25 local_save_flags(flags); \ 25
26 (flags == 0); \ 26static inline void arch_local_irq_disable(void)
27}) 27{
28 block_signals();
29}
30
31static inline unsigned long arch_local_irq_save(void)
32{
33 unsigned long flags;
34 flags = arch_local_save_flags();
35 arch_local_irq_disable();
36 return flags;
37}
38
39static inline bool arch_irqs_disabled(void)
40{
41 return arch_local_save_flags() == 0;
42}
28 43
29extern void *_switch_to(void *prev, void *next, void *last); 44extern void *_switch_to(void *prev, void *next, void *last);
30#define switch_to(prev, next, last) prev = _switch_to(prev, next, last) 45#define switch_to(prev, next, last) prev = _switch_to(prev, next, last)