1 #ifndef FIO_OS_ANDROID_H
2 #define FIO_OS_ANDROID_H
4 #define FIO_OS os_android
9 #include <sys/syscall.h>
10 #include <sys/sysmacros.h>
16 #include <linux/unistd.h>
17 #include <linux/major.h>
18 #include <asm/byteorder.h>
20 #include "./os-linux-syscall.h"
23 #ifndef __has_builtin // Optional of course.
24 #define __has_builtin(x) 0 // Compatibility with non-clang compilers.
27 #define FIO_HAVE_CPU_AFFINITY
28 #define FIO_HAVE_DISK_UTIL
29 #define FIO_HAVE_IOSCHED_SWITCH
30 #define FIO_HAVE_IOPRIO
31 #define FIO_HAVE_IOPRIO_CLASS
32 #define FIO_HAVE_ODIRECT
33 #define FIO_HAVE_HUGETLB
34 #define FIO_HAVE_BLKTRACE
35 #define FIO_HAVE_CL_SIZE
36 #define FIO_HAVE_CGROUPS
37 #define FIO_HAVE_FS_STAT
39 #define FIO_HAVE_GETTID
40 #define FIO_USE_GENERIC_INIT_RANDOM_STATE
41 #define FIO_HAVE_E4_ENG
42 #define FIO_HAVE_BYTEORDER_FUNCS
43 #define FIO_HAVE_MMAP_HUGE
44 #define FIO_NO_HAVE_SHM_H
46 #define OS_MAP_ANON MAP_ANONYMOUS
48 typedef cpu_set_t os_cpu_mask_t;
50 #define fio_setaffinity(pid, cpumask) \
51 sched_setaffinity((pid), sizeof(cpumask), &(cpumask))
52 #define fio_getaffinity(pid, ptr) \
53 sched_getaffinity((pid), sizeof(cpu_set_t), (ptr))
55 #ifndef POSIX_MADV_DONTNEED
56 #define posix_madvise madvise
57 #define POSIX_MADV_DONTNEED MADV_DONTNEED
58 #define POSIX_MADV_SEQUENTIAL MADV_SEQUENTIAL
59 #define POSIX_MADV_RANDOM MADV_RANDOM
63 #define FIO_MADV_FREE MADV_REMOVE
66 #define MAP_HUGETLB 0x40000 /* arch specific */
69 #ifdef CONFIG_PTHREAD_GETAFFINITY
70 #define FIO_HAVE_GET_THREAD_AFFINITY
71 #define fio_get_thread_affinity(mask) \
72 pthread_getaffinity_np(pthread_self(), sizeof(mask), &(mask))
75 #define fio_cpu_clear(mask, cpu) CPU_CLR((cpu), (mask))
76 #define fio_cpu_set(mask, cpu) CPU_SET((cpu), (mask))
77 #define fio_cpu_isset(mask, cpu) (CPU_ISSET((cpu), (mask)) != 0)
78 #define fio_cpu_count(mask) CPU_COUNT((mask))
80 static inline int fio_cpuset_init(os_cpu_mask_t *mask)
86 static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
91 #define FIO_MAX_CPUS CPU_SETSIZE
93 #include "os-ashmem.h"
95 #define SPLICE_DEF_SIZE (64*1024)
105 IOPRIO_WHO_PROCESS = 1,
110 #define IOPRIO_BITS 16
111 #define IOPRIO_CLASS_SHIFT 13
113 #define IOPRIO_MIN_PRIO 0 /* highest priority */
114 #define IOPRIO_MAX_PRIO 7 /* lowest priority */
116 #define IOPRIO_MIN_PRIO_CLASS 0
117 #define IOPRIO_MAX_PRIO_CLASS 3
119 static inline int ioprio_value(int ioprio_class, int ioprio)
122 * If no class is set, assume BE
125 ioprio_class = IOPRIO_CLASS_BE;
127 return (ioprio_class << IOPRIO_CLASS_SHIFT) | ioprio;
130 static inline bool ioprio_value_is_class_rt(unsigned int priority)
132 return (priority >> IOPRIO_CLASS_SHIFT) == IOPRIO_CLASS_RT;
135 static inline int ioprio_set(int which, int who, int ioprio_class, int ioprio)
137 return syscall(__NR_ioprio_set, which, who,
138 ioprio_value(ioprio_class, ioprio));
142 #define BLKGETSIZE64 _IOR(0x12,114,size_t)
146 #define BLKFLSBUF _IO(0x12,97)
150 #define BLKDISCARD _IO(0x12,119)
153 static inline int blockdev_invalidate_cache(struct fio_file *f)
155 return ioctl(f->fd, BLKFLSBUF);
158 static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes)
160 if (!ioctl(f->fd, BLKGETSIZE64, bytes))
166 static inline unsigned long long os_phys_mem(void)
168 long pagesize, pages;
170 pagesize = sysconf(_SC_PAGESIZE);
171 pages = sysconf(_SC_PHYS_PAGES);
172 if (pages == -1 || pagesize == -1)
175 return (unsigned long long) pages * (unsigned long long) pagesize;
179 #define FIO_O_NOATIME O_NOATIME
181 #define FIO_O_NOATIME 0
184 /* Check for GCC or Clang byte swap intrinsics */
185 #if (__has_builtin(__builtin_bswap16) && __has_builtin(__builtin_bswap32) \
186 && __has_builtin(__builtin_bswap64)) || (__GNUC__ > 4 \
187 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)) /* fio_swapN */
188 #define fio_swap16(x) __builtin_bswap16(x)
189 #define fio_swap32(x) __builtin_bswap32(x)
190 #define fio_swap64(x) __builtin_bswap64(x)
192 #include <byteswap.h>
193 #define fio_swap16(x) bswap_16(x)
194 #define fio_swap32(x) bswap_32(x)
195 #define fio_swap64(x) bswap_64(x)
196 #endif /* fio_swapN */
198 #define CACHE_LINE_FILE \
199 "/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size"
201 static inline int arch_cache_line_size(void)
206 fd = open(CACHE_LINE_FILE, O_RDONLY);
210 ret = read(fd, size, sizeof(size));
220 static inline unsigned long long get_fs_free_size(const char *path)
222 unsigned long long ret;
225 if (statfs(path, &s) < 0)
229 ret *= (unsigned long long) s.f_bfree;
233 static inline int os_trim(struct fio_file *f, unsigned long long start,
234 unsigned long long len)
241 if (!ioctl(f->fd, BLKDISCARD, range))
247 #ifdef CONFIG_SCHED_IDLE
248 static inline int fio_set_sched_idle(void)
250 struct sched_param p = { .sched_priority = 0, };
251 return sched_setscheduler(gettid(), SCHED_IDLE, &p);
256 #define RWF_UNCACHED 0x00000040