1 #ifndef FIO_OS_ANDROID_H
2 #define FIO_OS_ANDROID_H
4 #define FIO_OS os_android
8 #include <sys/syscall.h>
14 #include <linux/unistd.h>
15 #include <linux/major.h>
20 #define FIO_HAVE_DISK_UTIL
21 #define FIO_HAVE_IOSCHED_SWITCH
22 #define FIO_HAVE_IOPRIO
23 #define FIO_HAVE_ODIRECT
24 #define FIO_HAVE_HUGETLB
25 #define FIO_HAVE_BLKTRACE
26 #define FIO_HAVE_PSHARED_MUTEX
27 #define FIO_HAVE_CL_SIZE
28 #define FIO_HAVE_FS_STAT
30 #define FIO_HAVE_GETTID
31 #define FIO_USE_GENERIC_INIT_RANDOM_STATE
32 #define FIO_HAVE_E4_ENG
33 #define FIO_HAVE_BYTEORDER_FUNCS
34 #define FIO_HAVE_MMAP_HUGE
35 #define FIO_NO_HAVE_SHM_H
37 #define OS_MAP_ANON MAP_ANONYMOUS
39 #define posix_madvise madvise
40 #define POSIX_MADV_DONTNEED MADV_DONTNEED
41 #define POSIX_MADV_SEQUENTIAL MADV_SEQUENTIAL
42 #define POSIX_MADV_RANDOM MADV_RANDOM
44 #define FIO_MADV_FREE MADV_REMOVE
47 #define MAP_HUGETLB 0x40000 /* arch specific */
52 * The Android NDK doesn't currently export <sys/shm.h>, so define the
53 * necessary stuff here.
56 #include <linux/shm.h>
57 #define SHM_HUGETLB 04000
59 static inline int shmctl (int __shmid, int __cmd, struct shmid_ds *__buf)
61 return syscall(__NR_shmctl, __shmid, __cmd, __buf);
64 static inline int shmget (key_t __key, size_t __size, int __shmflg)
66 return syscall(__NR_shmget, __key, __size, __shmflg);
69 static inline void *shmat (int __shmid, const void *__shmaddr, int __shmflg)
71 return (void *)syscall(__NR_shmat, __shmid, __shmaddr, __shmflg);
74 static inline int shmdt (const void *__shmaddr)
76 return syscall(__NR_shmctl, __shmaddr);
80 #define SPLICE_DEF_SIZE (64*1024)
82 static inline int ioprio_set(int which, int who, int ioprio)
84 return syscall(__NR_ioprio_set, which, who, ioprio);
95 IOPRIO_WHO_PROCESS = 1,
100 #define IOPRIO_BITS 16
101 #define IOPRIO_CLASS_SHIFT 13
104 #define BLKGETSIZE64 _IOR(0x12,114,size_t)
108 #define BLKFLSBUF _IO(0x12,97)
112 #define BLKDISCARD _IO(0x12,119)
115 static inline int blockdev_invalidate_cache(struct fio_file *f)
117 return ioctl(f->fd, BLKFLSBUF);
120 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
122 if (!ioctl(f->fd, BLKGETSIZE64, bytes))
128 static inline unsigned long long os_phys_mem(void)
130 long pagesize, pages;
132 pagesize = sysconf(_SC_PAGESIZE);
133 pages = sysconf(_SC_PHYS_PAGES);
134 if (pages == -1 || pagesize == -1)
137 return (unsigned long long) pages * (unsigned long long) pagesize;
140 typedef struct { unsigned short r[3]; } os_random_state_t;
142 static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
144 rs->r[0] = seed & 0xffff;
146 rs->r[1] = seed & 0xffff;
148 rs->r[2] = seed & 0xffff;
152 static inline long os_random_long(os_random_state_t *rs)
154 return nrand48(rs->r);
158 #define FIO_O_NOATIME O_NOATIME
160 #define FIO_O_NOATIME 0
163 #define fio_swap16(x) __bswap_16(x)
164 #define fio_swap32(x) __bswap_32(x)
165 #define fio_swap64(x) __bswap_64(x)
167 #define CACHE_LINE_FILE \
168 "/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size"
170 static inline int arch_cache_line_size(void)
175 fd = open(CACHE_LINE_FILE, O_RDONLY);
179 ret = read(fd, size, sizeof(size));
189 static inline unsigned long long get_fs_size(const char *path)
191 unsigned long long ret;
194 if (statfs(path, &s) < 0)
198 ret *= (unsigned long long) s.f_bfree;
202 static inline int os_trim(int fd, unsigned long long start,
203 unsigned long long len)
210 if (!ioctl(fd, BLKDISCARD, range))