diff options
Diffstat (limited to 'include/asm-sparc64/irqflags.h')
-rw-r--r-- | include/asm-sparc64/irqflags.h | 90 |
1 files changed, 1 insertions, 89 deletions
diff --git a/include/asm-sparc64/irqflags.h b/include/asm-sparc64/irqflags.h index 024fc54d0682..27b091fc3fa0 100644 --- a/include/asm-sparc64/irqflags.h +++ b/include/asm-sparc64/irqflags.h | |||
@@ -1,89 +1 @@ | |||
1 | /* | #include <asm-sparc/irqflags.h> | |
2 | * include/asm-sparc64/irqflags.h | ||
3 | * | ||
4 | * IRQ flags handling | ||
5 | * | ||
6 | * This file gets included from lowlevel asm headers too, to provide | ||
7 | * wrapped versions of the local_irq_*() APIs, based on the | ||
8 | * raw_local_irq_*() functions from the lowlevel headers. | ||
9 | */ | ||
10 | #ifndef _ASM_IRQFLAGS_H | ||
11 | #define _ASM_IRQFLAGS_H | ||
12 | |||
13 | #ifndef __ASSEMBLY__ | ||
14 | |||
15 | static inline unsigned long __raw_local_save_flags(void) | ||
16 | { | ||
17 | unsigned long flags; | ||
18 | |||
19 | __asm__ __volatile__( | ||
20 | "rdpr %%pil, %0" | ||
21 | : "=r" (flags) | ||
22 | ); | ||
23 | |||
24 | return flags; | ||
25 | } | ||
26 | |||
27 | #define raw_local_save_flags(flags) \ | ||
28 | do { (flags) = __raw_local_save_flags(); } while (0) | ||
29 | |||
30 | static inline void raw_local_irq_restore(unsigned long flags) | ||
31 | { | ||
32 | __asm__ __volatile__( | ||
33 | "wrpr %0, %%pil" | ||
34 | : /* no output */ | ||
35 | : "r" (flags) | ||
36 | : "memory" | ||
37 | ); | ||
38 | } | ||
39 | |||
40 | static inline void raw_local_irq_disable(void) | ||
41 | { | ||
42 | __asm__ __volatile__( | ||
43 | "wrpr 15, %%pil" | ||
44 | : /* no outputs */ | ||
45 | : /* no inputs */ | ||
46 | : "memory" | ||
47 | ); | ||
48 | } | ||
49 | |||
50 | static inline void raw_local_irq_enable(void) | ||
51 | { | ||
52 | __asm__ __volatile__( | ||
53 | "wrpr 0, %%pil" | ||
54 | : /* no outputs */ | ||
55 | : /* no inputs */ | ||
56 | : "memory" | ||
57 | ); | ||
58 | } | ||
59 | |||
60 | static inline int raw_irqs_disabled_flags(unsigned long flags) | ||
61 | { | ||
62 | return (flags > 0); | ||
63 | } | ||
64 | |||
65 | static inline int raw_irqs_disabled(void) | ||
66 | { | ||
67 | unsigned long flags = __raw_local_save_flags(); | ||
68 | |||
69 | return raw_irqs_disabled_flags(flags); | ||
70 | } | ||
71 | |||
72 | /* | ||
73 | * For spinlocks, etc: | ||
74 | */ | ||
75 | static inline unsigned long __raw_local_irq_save(void) | ||
76 | { | ||
77 | unsigned long flags = __raw_local_save_flags(); | ||
78 | |||
79 | raw_local_irq_disable(); | ||
80 | |||
81 | return flags; | ||
82 | } | ||
83 | |||
84 | #define raw_local_irq_save(flags) \ | ||
85 | do { (flags) = __raw_local_irq_save(); } while (0) | ||
86 | |||
87 | #endif /* (__ASSEMBLY__) */ | ||
88 | |||
89 | #endif /* !(_ASM_IRQFLAGS_H) */ | ||