Commit | Line | Data |
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ec5c6b12 AC |
1 | #ifndef FIO_OS_ANDROID_H |
2 | #define FIO_OS_ANDROID_H | |
3 | ||
4 | #define FIO_OS os_android | |
5 | ||
6 | #include <sys/ioctl.h> | |
93eeb558 | 7 | #include <sys/mman.h> |
ec5c6b12 AC |
8 | #include <sys/uio.h> |
9 | #include <sys/syscall.h> | |
036a1599 | 10 | #include <sys/sysmacros.h> |
ec5c6b12 AC |
11 | #include <sys/vfs.h> |
12 | #include <unistd.h> | |
13 | #include <fcntl.h> | |
14 | #include <errno.h> | |
15 | #include <sched.h> | |
16 | #include <linux/unistd.h> | |
17 | #include <linux/major.h> | |
da52c582 | 18 | #include <asm/byteorder.h> |
ec5c6b12 | 19 | |
eec97b93 | 20 | #include "./os-linux-syscall.h" |
ec5c6b12 AC |
21 | #include "../file.h" |
22 | ||
0fa5c986 OM |
23 | #ifndef __has_builtin // Optional of course. |
24 | #define __has_builtin(x) 0 // Compatibility with non-clang compilers. | |
25 | #endif | |
26 | ||
ec5c6b12 | 27 | #define FIO_HAVE_DISK_UTIL |
ec5c6b12 | 28 | #define FIO_HAVE_IOSCHED_SWITCH |
177380ab | 29 | #define FIO_HAVE_IOPRIO |
32ef447a | 30 | #define FIO_HAVE_IOPRIO_CLASS |
ec5c6b12 AC |
31 | #define FIO_HAVE_ODIRECT |
32 | #define FIO_HAVE_HUGETLB | |
33 | #define FIO_HAVE_BLKTRACE | |
ec5c6b12 | 34 | #define FIO_HAVE_CL_SIZE |
3714a963 | 35 | #define FIO_HAVE_CGROUPS |
ec5c6b12 AC |
36 | #define FIO_HAVE_FS_STAT |
37 | #define FIO_HAVE_TRIM | |
ec5c6b12 AC |
38 | #define FIO_HAVE_GETTID |
39 | #define FIO_USE_GENERIC_INIT_RANDOM_STATE | |
40 | #define FIO_HAVE_E4_ENG | |
41 | #define FIO_HAVE_BYTEORDER_FUNCS | |
6d0e9f83 | 42 | #define FIO_HAVE_MMAP_HUGE |
a5e0ee11 | 43 | #define FIO_NO_HAVE_SHM_H |
ec5c6b12 AC |
44 | |
45 | #define OS_MAP_ANON MAP_ANONYMOUS | |
46 | ||
93eeb558 | 47 | #ifndef POSIX_MADV_DONTNEED |
ec5c6b12 AC |
48 | #define posix_madvise madvise |
49 | #define POSIX_MADV_DONTNEED MADV_DONTNEED | |
50 | #define POSIX_MADV_SEQUENTIAL MADV_SEQUENTIAL | |
51 | #define POSIX_MADV_RANDOM MADV_RANDOM | |
93eeb558 | 52 | #endif |
53 | ||
ec5c6b12 AC |
54 | #ifdef MADV_REMOVE |
55 | #define FIO_MADV_FREE MADV_REMOVE | |
56 | #endif | |
a5e0ee11 O |
57 | #ifndef MAP_HUGETLB |
58 | #define MAP_HUGETLB 0x40000 /* arch specific */ | |
59 | #endif | |
ec5c6b12 | 60 | |
6ca9b06d | 61 | #ifndef CONFIG_NO_SHM |
ec5c6b12 | 62 | /* |
68bf62a0 | 63 | * Bionic doesn't support SysV shared memeory, so implement it using ashmem |
ec5c6b12 | 64 | */ |
239a11de AJ |
65 | #include <stdio.h> |
66 | #include <linux/ashmem.h> | |
68bf62a0 OM |
67 | #include <linux/shm.h> |
68 | #define shmid_ds shmid64_ds | |
69 | #define SHM_HUGETLB 04000 | |
239a11de AJ |
70 | |
71 | #define ASHMEM_DEVICE "/dev/ashmem" | |
72 | ||
68bf62a0 | 73 | static inline int shmctl(int __shmid, int __cmd, struct shmid_ds *__buf) |
ec5c6b12 | 74 | { |
239a11de AJ |
75 | int ret=0; |
76 | if (__cmd == IPC_RMID) | |
77 | { | |
78 | int length = ioctl(__shmid, ASHMEM_GET_SIZE, NULL); | |
79 | struct ashmem_pin pin = {0 , length}; | |
80 | ret = ioctl(__shmid, ASHMEM_UNPIN, &pin); | |
81 | close(__shmid); | |
82 | } | |
83 | return ret; | |
ec5c6b12 AC |
84 | } |
85 | ||
68bf62a0 | 86 | static inline int shmget(key_t __key, size_t __size, int __shmflg) |
ec5c6b12 | 87 | { |
239a11de | 88 | int fd,ret; |
91f64346 OM |
89 | char keybuf[11]; |
90 | ||
239a11de AJ |
91 | fd = open(ASHMEM_DEVICE, O_RDWR); |
92 | if (fd < 0) | |
93 | return fd; | |
94 | ||
91f64346 OM |
95 | sprintf(keybuf,"%d",__key); |
96 | ret = ioctl(fd, ASHMEM_SET_NAME, keybuf); | |
239a11de AJ |
97 | if (ret < 0) |
98 | goto error; | |
99 | ||
d8767475 OM |
100 | /* Stores size in first 8 bytes, allocate extra space */ |
101 | ret = ioctl(fd, ASHMEM_SET_SIZE, __size + sizeof(uint64_t)); | |
239a11de AJ |
102 | if (ret < 0) |
103 | goto error; | |
104 | ||
105 | return fd; | |
91f64346 | 106 | |
239a11de AJ |
107 | error: |
108 | close(fd); | |
109 | return ret; | |
ec5c6b12 AC |
110 | } |
111 | ||
68bf62a0 | 112 | static inline void *shmat(int __shmid, const void *__shmaddr, int __shmflg) |
ec5c6b12 | 113 | { |
d8767475 OM |
114 | size_t size = ioctl(__shmid, ASHMEM_GET_SIZE, NULL); |
115 | /* Needs to be 8-byte aligned to prevent SIGBUS on 32-bit ARM */ | |
116 | uint64_t *ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, __shmid, 0); | |
117 | /* Save size at beginning of buffer, for use with munmap */ | |
118 | *ptr = size; | |
119 | return ptr + 1; | |
ec5c6b12 AC |
120 | } |
121 | ||
122 | static inline int shmdt (const void *__shmaddr) | |
123 | { | |
d8767475 OM |
124 | /* Find mmap size which we stored at the beginning of the buffer */ |
125 | uint64_t *ptr = (uint64_t *)__shmaddr - 1; | |
126 | size_t size = *ptr; | |
127 | return munmap(ptr, size); | |
ec5c6b12 | 128 | } |
6ca9b06d | 129 | #endif |
ec5c6b12 | 130 | |
ec5c6b12 AC |
131 | #define SPLICE_DEF_SIZE (64*1024) |
132 | ||
177380ab AC |
133 | enum { |
134 | IOPRIO_CLASS_NONE, | |
135 | IOPRIO_CLASS_RT, | |
136 | IOPRIO_CLASS_BE, | |
137 | IOPRIO_CLASS_IDLE, | |
138 | }; | |
139 | ||
140 | enum { | |
141 | IOPRIO_WHO_PROCESS = 1, | |
142 | IOPRIO_WHO_PGRP, | |
143 | IOPRIO_WHO_USER, | |
144 | }; | |
145 | ||
146 | #define IOPRIO_BITS 16 | |
147 | #define IOPRIO_CLASS_SHIFT 13 | |
148 | ||
1767bd34 TK |
149 | #define IOPRIO_MIN_PRIO 0 /* highest priority */ |
150 | #define IOPRIO_MAX_PRIO 7 /* lowest priority */ | |
151 | ||
152 | #define IOPRIO_MIN_PRIO_CLASS 0 | |
153 | #define IOPRIO_MAX_PRIO_CLASS 3 | |
154 | ||
a415b2cc AC |
155 | static inline int ioprio_set(int which, int who, int ioprio_class, int ioprio) |
156 | { | |
157 | /* | |
158 | * If no class is set, assume BE | |
159 | */ | |
160 | if (!ioprio_class) | |
161 | ioprio_class = IOPRIO_CLASS_BE; | |
162 | ||
163 | ioprio |= ioprio_class << IOPRIO_CLASS_SHIFT; | |
164 | return syscall(__NR_ioprio_set, which, who, ioprio); | |
165 | } | |
166 | ||
ec5c6b12 AC |
167 | #ifndef BLKGETSIZE64 |
168 | #define BLKGETSIZE64 _IOR(0x12,114,size_t) | |
169 | #endif | |
170 | ||
171 | #ifndef BLKFLSBUF | |
172 | #define BLKFLSBUF _IO(0x12,97) | |
173 | #endif | |
174 | ||
175 | #ifndef BLKDISCARD | |
176 | #define BLKDISCARD _IO(0x12,119) | |
177 | #endif | |
178 | ||
179 | static inline int blockdev_invalidate_cache(struct fio_file *f) | |
180 | { | |
181 | return ioctl(f->fd, BLKFLSBUF); | |
182 | } | |
183 | ||
184 | static inline int blockdev_size(struct fio_file *f, unsigned long long *bytes) | |
185 | { | |
186 | if (!ioctl(f->fd, BLKGETSIZE64, bytes)) | |
187 | return 0; | |
188 | ||
189 | return errno; | |
190 | } | |
191 | ||
192 | static inline unsigned long long os_phys_mem(void) | |
193 | { | |
194 | long pagesize, pages; | |
195 | ||
196 | pagesize = sysconf(_SC_PAGESIZE); | |
197 | pages = sysconf(_SC_PHYS_PAGES); | |
198 | if (pages == -1 || pagesize == -1) | |
199 | return 0; | |
200 | ||
201 | return (unsigned long long) pages * (unsigned long long) pagesize; | |
202 | } | |
203 | ||
204 | typedef struct { unsigned short r[3]; } os_random_state_t; | |
205 | ||
206 | static inline void os_random_seed(unsigned long seed, os_random_state_t *rs) | |
207 | { | |
208 | rs->r[0] = seed & 0xffff; | |
209 | seed >>= 16; | |
210 | rs->r[1] = seed & 0xffff; | |
211 | seed >>= 16; | |
212 | rs->r[2] = seed & 0xffff; | |
213 | seed48(rs->r); | |
214 | } | |
215 | ||
216 | static inline long os_random_long(os_random_state_t *rs) | |
217 | { | |
218 | return nrand48(rs->r); | |
219 | } | |
220 | ||
221 | #ifdef O_NOATIME | |
222 | #define FIO_O_NOATIME O_NOATIME | |
223 | #else | |
224 | #define FIO_O_NOATIME 0 | |
225 | #endif | |
226 | ||
0fa5c986 OM |
227 | /* Check for GCC or Clang byte swap intrinsics */ |
228 | #if (__has_builtin(__builtin_bswap16) && __has_builtin(__builtin_bswap32) \ | |
229 | && __has_builtin(__builtin_bswap64)) || (__GNUC__ > 4 \ | |
230 | || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)) /* fio_swapN */ | |
231 | #define fio_swap16(x) __builtin_bswap16(x) | |
232 | #define fio_swap32(x) __builtin_bswap32(x) | |
233 | #define fio_swap64(x) __builtin_bswap64(x) | |
234 | #else | |
235 | #include <byteswap.h> | |
236 | #define fio_swap16(x) bswap_16(x) | |
237 | #define fio_swap32(x) bswap_32(x) | |
238 | #define fio_swap64(x) bswap_64(x) | |
239 | #endif /* fio_swapN */ | |
ec5c6b12 AC |
240 | |
241 | #define CACHE_LINE_FILE \ | |
242 | "/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size" | |
243 | ||
244 | static inline int arch_cache_line_size(void) | |
245 | { | |
246 | char size[32]; | |
247 | int fd, ret; | |
248 | ||
249 | fd = open(CACHE_LINE_FILE, O_RDONLY); | |
250 | if (fd < 0) | |
251 | return -1; | |
252 | ||
253 | ret = read(fd, size, sizeof(size)); | |
254 | ||
255 | close(fd); | |
256 | ||
257 | if (ret <= 0) | |
258 | return -1; | |
259 | else | |
260 | return atoi(size); | |
261 | } | |
262 | ||
c08ad04c | 263 | static inline unsigned long long get_fs_free_size(const char *path) |
ec5c6b12 AC |
264 | { |
265 | unsigned long long ret; | |
266 | struct statfs s; | |
267 | ||
268 | if (statfs(path, &s) < 0) | |
269 | return -1ULL; | |
270 | ||
271 | ret = s.f_bsize; | |
272 | ret *= (unsigned long long) s.f_bfree; | |
273 | return ret; | |
274 | } | |
275 | ||
496b1f9e | 276 | static inline int os_trim(struct fio_file *f, unsigned long long start, |
ec5c6b12 AC |
277 | unsigned long long len) |
278 | { | |
279 | uint64_t range[2]; | |
280 | ||
281 | range[0] = start; | |
282 | range[1] = len; | |
283 | ||
496b1f9e | 284 | if (!ioctl(f->fd, BLKDISCARD, range)) |
ec5c6b12 AC |
285 | return 0; |
286 | ||
287 | return errno; | |
288 | } | |
289 | ||
93eeb558 | 290 | #ifdef CONFIG_SCHED_IDLE |
291 | static inline int fio_set_sched_idle(void) | |
292 | { | |
293 | struct sched_param p = { .sched_priority = 0, }; | |
294 | return sched_setscheduler(gettid(), SCHED_IDLE, &p); | |
295 | } | |
296 | #endif | |
297 | ||
ec5c6b12 | 298 | #endif |