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)
90 IOPRIO_WHO_PROCESS = 1,
95 #define IOPRIO_BITS 16
96 #define IOPRIO_CLASS_SHIFT 13
98 static inline int ioprio_set(int which, int who, int ioprio_class, int ioprio)
101 * If no class is set, assume BE
104 ioprio_class = IOPRIO_CLASS_BE;
106 ioprio |= ioprio_class << IOPRIO_CLASS_SHIFT;
107 return syscall(__NR_ioprio_set, which, who, ioprio);
111 #define BLKGETSIZE64 _IOR(0x12,114,size_t)
115 #define BLKFLSBUF _IO(0x12,97)
119 #define BLKDISCARD _IO(0x12,119)
122 static inline int blockdev_invalidate_cache(struct fio_file *f)
124 return ioctl(f->fd, BLKFLSBUF);
127 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
129 if (!ioctl(f->fd, BLKGETSIZE64, bytes))
135 static inline unsigned long long os_phys_mem(void)
137 long pagesize, pages;
139 pagesize = sysconf(_SC_PAGESIZE);
140 pages = sysconf(_SC_PHYS_PAGES);
141 if (pages == -1 || pagesize == -1)
144 return (unsigned long long) pages * (unsigned long long) pagesize;
147 typedef struct { unsigned short r[3]; } os_random_state_t;
149 static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
151 rs->r[0] = seed & 0xffff;
153 rs->r[1] = seed & 0xffff;
155 rs->r[2] = seed & 0xffff;
159 static inline long os_random_long(os_random_state_t *rs)
161 return nrand48(rs->r);
165 #define FIO_O_NOATIME O_NOATIME
167 #define FIO_O_NOATIME 0
170 #define fio_swap16(x) __bswap_16(x)
171 #define fio_swap32(x) __bswap_32(x)
172 #define fio_swap64(x) __bswap_64(x)
174 #define CACHE_LINE_FILE \
175 "/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size"
177 static inline int arch_cache_line_size(void)
182 fd = open(CACHE_LINE_FILE, O_RDONLY);
186 ret = read(fd, size, sizeof(size));
196 static inline unsigned long long get_fs_size(const char *path)
198 unsigned long long ret;
201 if (statfs(path, &s) < 0)
205 ret *= (unsigned long long) s.f_bfree;
209 static inline int os_trim(int fd, unsigned long long start,
210 unsigned long long len)
217 if (!ioctl(fd, BLKDISCARD, range))