Commit | Line | Data |
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ebac4655 JA |
1 | #ifndef ARCH_X86_H |
2 | #define ARCH_X86_H | |
3 | ||
4 | #define ARCH (arch_i386) | |
5 | ||
6 | #ifndef __NR_ioprio_set | |
7 | #define __NR_ioprio_set 289 | |
8 | #define __NR_ioprio_get 290 | |
9 | #endif | |
10 | ||
11 | #ifndef __NR_fadvise64 | |
12 | #define __NR_fadvise64 250 | |
13 | #endif | |
14 | ||
8756e4d4 JA |
15 | #ifndef __NR_sys_splice |
16 | #define __NR_sys_splice 313 | |
17 | #define __NR_sys_tee 315 | |
18 | #define __NR_sys_vmsplice 316 | |
19 | #endif | |
20 | ||
bf0dc8fa | 21 | #ifndef __NR_async_exec |
36ddbc09 ZB |
22 | #define __NR_async_exec 325 |
23 | #define __NR_async_wait 326 | |
24 | #define __NR_umem_add 327 | |
25 | #define __NR_async_thread 328 | |
a4f4fdd7 JA |
26 | #endif |
27 | ||
cb25df61 JA |
28 | #define FIO_HUGE_PAGE 4194304 |
29 | ||
4667c19e JA |
30 | #define FIO_HAVE_SYSLET |
31 | ||
db6defc7 | 32 | #define nop __asm__ __volatile__("rep;nop": : :"memory") |
44c47feb JA |
33 | #define read_barrier() __asm__ __volatile__("": : :"memory") |
34 | #define write_barrier() __asm__ __volatile__("": : :"memory") | |
ebac4655 | 35 | |
8f7e39dd JA |
36 | static inline unsigned long arch_ffz(unsigned long bitmask) |
37 | { | |
38 | __asm__("bsfl %1,%0" :"=r" (bitmask) :"r" (~bitmask)); | |
39 | return bitmask; | |
40 | } | |
41 | #define ARCH_HAVE_FFZ | |
42 | ||
69ebbd39 JA |
43 | typedef struct { |
44 | unsigned int lock; | |
45 | } spinlock_t; | |
46 | ||
47 | static inline void spin_lock(spinlock_t *lock) | |
48 | { | |
49 | short inc = 0x0100; | |
50 | ||
51 | __asm__ __volatile__("xaddw %w0, %1\n" | |
52 | "1:\t" | |
53 | "cmpb %h0, %b0\n\t" | |
54 | "je 2f\n\t" | |
55 | "rep ; nop\n\t" | |
56 | "movb %1, %b0\n\t" | |
57 | "jmp 1b\n" | |
58 | "2:" | |
59 | : "+Q" (inc), "+m" (lock->lock) | |
60 | : | |
61 | : "memory", "cc"); | |
62 | } | |
63 | ||
64 | static inline void spin_unlock(spinlock_t *lock) | |
65 | { | |
66 | __asm__ __volatile__("incb %0" | |
67 | : "+m" (lock->lock) | |
68 | : | |
69 | : "memory", "cc"); | |
70 | } | |
71 | ||
61a179a8 JA |
72 | #define __SPIN_LOCK_UNLOCKED { 0 } |
73 | ||
ebac4655 | 74 | #endif |