diff options
Diffstat (limited to 'include/asm-cris/system.h')
-rw-r--r-- | include/asm-cris/system.h | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/include/asm-cris/system.h b/include/asm-cris/system.h deleted file mode 100644 index 5bcfe5a10907..000000000000 --- a/include/asm-cris/system.h +++ /dev/null | |||
@@ -1,88 +0,0 @@ | |||
1 | #ifndef __ASM_CRIS_SYSTEM_H | ||
2 | #define __ASM_CRIS_SYSTEM_H | ||
3 | |||
4 | #include <asm/arch/system.h> | ||
5 | |||
6 | /* the switch_to macro calls resume, an asm function in entry.S which does the actual | ||
7 | * task switching. | ||
8 | */ | ||
9 | |||
10 | extern struct task_struct *resume(struct task_struct *prev, struct task_struct *next, int); | ||
11 | #define switch_to(prev,next,last) last = resume(prev,next, \ | ||
12 | (int)&((struct task_struct *)0)->thread) | ||
13 | |||
14 | #define barrier() __asm__ __volatile__("": : :"memory") | ||
15 | #define mb() barrier() | ||
16 | #define rmb() mb() | ||
17 | #define wmb() mb() | ||
18 | #define read_barrier_depends() do { } while(0) | ||
19 | #define set_mb(var, value) do { var = value; mb(); } while (0) | ||
20 | |||
21 | #ifdef CONFIG_SMP | ||
22 | #define smp_mb() mb() | ||
23 | #define smp_rmb() rmb() | ||
24 | #define smp_wmb() wmb() | ||
25 | #define smp_read_barrier_depends() read_barrier_depends() | ||
26 | #else | ||
27 | #define smp_mb() barrier() | ||
28 | #define smp_rmb() barrier() | ||
29 | #define smp_wmb() barrier() | ||
30 | #define smp_read_barrier_depends() do { } while(0) | ||
31 | #endif | ||
32 | |||
33 | #define iret() | ||
34 | |||
35 | /* | ||
36 | * disable hlt during certain critical i/o operations | ||
37 | */ | ||
38 | #define HAVE_DISABLE_HLT | ||
39 | void disable_hlt(void); | ||
40 | void enable_hlt(void); | ||
41 | |||
42 | static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size) | ||
43 | { | ||
44 | /* since Etrax doesn't have any atomic xchg instructions, we need to disable | ||
45 | irq's (if enabled) and do it with move.d's */ | ||
46 | unsigned long flags,temp; | ||
47 | local_irq_save(flags); /* save flags, including irq enable bit and shut off irqs */ | ||
48 | switch (size) { | ||
49 | case 1: | ||
50 | *((unsigned char *)&temp) = x; | ||
51 | x = *(unsigned char *)ptr; | ||
52 | *(unsigned char *)ptr = *((unsigned char *)&temp); | ||
53 | break; | ||
54 | case 2: | ||
55 | *((unsigned short *)&temp) = x; | ||
56 | x = *(unsigned short *)ptr; | ||
57 | *(unsigned short *)ptr = *((unsigned short *)&temp); | ||
58 | break; | ||
59 | case 4: | ||
60 | temp = x; | ||
61 | x = *(unsigned long *)ptr; | ||
62 | *(unsigned long *)ptr = temp; | ||
63 | break; | ||
64 | } | ||
65 | local_irq_restore(flags); /* restore irq enable bit */ | ||
66 | return x; | ||
67 | } | ||
68 | |||
69 | #include <asm-generic/cmpxchg-local.h> | ||
70 | |||
71 | /* | ||
72 | * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make | ||
73 | * them available. | ||
74 | */ | ||
75 | #define cmpxchg_local(ptr, o, n) \ | ||
76 | ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\ | ||
77 | (unsigned long)(n), sizeof(*(ptr)))) | ||
78 | #define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) | ||
79 | |||
80 | #ifndef CONFIG_SMP | ||
81 | #include <asm-generic/cmpxchg.h> | ||
82 | #endif | ||
83 | |||
84 | #define arch_align_stack(x) (x) | ||
85 | |||
86 | void default_idle(void); | ||
87 | |||
88 | #endif | ||