1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
#ifndef __UM_SYSTEM_GENERIC_H
#define __UM_SYSTEM_GENERIC_H
#include "asm/arch/system.h"
#undef switch_to
#undef local_irq_save
#undef local_irq_restore
#undef local_irq_disable
#undef local_irq_enable
#undef local_save_flags
#undef local_irq_restore
#undef local_irq_enable
#undef local_irq_disable
#undef local_irq_save
#undef irqs_disabled
extern void *switch_to(void *prev, void *next, void *last);
extern int get_signals(void);
extern int set_signals(int enable);
extern int get_signals(void);
extern void block_signals(void);
extern void unblock_signals(void);
#define local_save_flags(flags) do { (flags) = get_signals(); } while(0)
#define local_irq_restore(flags) do { set_signals(flags); } while(0)
#define local_irq_save(flags) do { local_save_flags(flags); \
local_irq_disable(); } while(0)
#define local_irq_enable() unblock_signals()
#define local_irq_disable() block_signals()
#define irqs_disabled() \
({ \
unsigned long flags; \
local_save_flags(flags); \
(flags == 0); \
})
#endif
|
