Rebecca Schultz Zavin | afd9123 | 2012-02-22 16:36:55 -0800 | [diff] [blame] | 1 | #include <errno.h> |
| 2 | #include <fcntl.h> |
| 3 | #include <getopt.h> |
| 4 | #include <string.h> |
| 5 | #include <stdlib.h> |
| 6 | #include <stdio.h> |
| 7 | #include <sys/mman.h> |
| 8 | #include <sys/ioctl.h> |
| 9 | #include <sys/socket.h> |
| 10 | #include <sys/stat.h> |
| 11 | #include <sys/types.h> |
| 12 | #include <unistd.h> |
| 13 | |
| 14 | #include <ion/ion.h> |
| 15 | #include <linux/ion.h> |
| 16 | #include <linux/omap_ion.h> |
| 17 | |
| 18 | size_t len = 1024*1024, align = 0; |
| 19 | int prot = PROT_READ | PROT_WRITE; |
| 20 | int map_flags = MAP_SHARED; |
| 21 | int alloc_flags = 0; |
| 22 | int test = -1; |
| 23 | size_t width = 1024*1024, height = 1024*1024; |
| 24 | size_t stride; |
| 25 | |
| 26 | int _ion_alloc_test(int *fd, struct ion_handle **handle) |
| 27 | { |
| 28 | int ret; |
| 29 | |
| 30 | *fd = ion_open(); |
| 31 | if (*fd < 0) |
| 32 | return *fd; |
| 33 | |
| 34 | ret = ion_alloc(*fd, len, align, alloc_flags, handle); |
| 35 | |
| 36 | if (ret) |
| 37 | printf("%s failed: %s\n", __func__, strerror(ret)); |
| 38 | return ret; |
| 39 | } |
| 40 | |
| 41 | void ion_alloc_test() |
| 42 | { |
| 43 | int fd, ret; |
| 44 | struct ion_handle *handle; |
| 45 | |
| 46 | if(_ion_alloc_test(&fd, &handle)) |
| 47 | return; |
| 48 | |
| 49 | ret = ion_free(fd, handle); |
| 50 | if (ret) { |
| 51 | printf("%s failed: %s %p\n", __func__, strerror(ret), handle); |
| 52 | return; |
| 53 | } |
| 54 | ion_close(fd); |
| 55 | printf("ion alloc test: passed\n"); |
| 56 | } |
| 57 | |
| 58 | void ion_map_test() |
| 59 | { |
| 60 | int fd, map_fd, ret; |
| 61 | size_t i; |
| 62 | struct ion_handle *handle; |
| 63 | unsigned char *ptr; |
| 64 | |
| 65 | if(_ion_alloc_test(&fd, &handle)) |
| 66 | return; |
| 67 | |
| 68 | ret = ion_map(fd, handle, len, prot, map_flags, 0, &ptr, &map_fd); |
| 69 | if (ret) |
| 70 | return; |
| 71 | |
| 72 | for (i = 0; i < len; i++) { |
| 73 | ptr[i] = (unsigned char)i; |
| 74 | } |
| 75 | for (i = 0; i < len; i++) |
| 76 | if (ptr[i] != (unsigned char)i) |
| 77 | printf("%s failed wrote %d read %d from mapped " |
| 78 | "memory\n", __func__, i, ptr[i]); |
| 79 | /* clean up properly */ |
| 80 | ret = ion_free(fd, handle); |
| 81 | ion_close(fd); |
| 82 | munmap(ptr, len); |
| 83 | close(map_fd); |
| 84 | |
| 85 | _ion_alloc_test(&fd, &handle); |
| 86 | close(fd); |
| 87 | |
| 88 | #if 0 |
| 89 | munmap(ptr, len); |
| 90 | close(map_fd); |
| 91 | ion_close(fd); |
| 92 | |
| 93 | _ion_alloc_test(len, align, flags, &fd, &handle); |
| 94 | close(map_fd); |
| 95 | ret = ion_map(fd, handle, len, prot, flags, 0, &ptr, &map_fd); |
| 96 | /* don't clean up */ |
| 97 | #endif |
| 98 | } |
| 99 | |
| 100 | void ion_share_test() |
| 101 | |
| 102 | { |
| 103 | struct ion_handle *handle; |
| 104 | int sd[2]; |
| 105 | int num_fd = 1; |
| 106 | struct iovec count_vec = { |
| 107 | .iov_base = &num_fd, |
| 108 | .iov_len = sizeof num_fd, |
| 109 | }; |
| 110 | char buf[CMSG_SPACE(sizeof(int))]; |
| 111 | socketpair(AF_UNIX, SOCK_STREAM, 0, sd); |
| 112 | if (fork()) { |
| 113 | struct msghdr msg = { |
| 114 | .msg_control = buf, |
| 115 | .msg_controllen = sizeof buf, |
| 116 | .msg_iov = &count_vec, |
| 117 | .msg_iovlen = 1, |
| 118 | }; |
| 119 | |
| 120 | struct cmsghdr *cmsg; |
| 121 | int fd, share_fd, ret; |
| 122 | char *ptr; |
| 123 | /* parent */ |
| 124 | if(_ion_alloc_test(&fd, &handle)) |
| 125 | return; |
| 126 | ret = ion_share(fd, handle, &share_fd); |
| 127 | if (ret) |
| 128 | printf("share failed %s\n", strerror(errno)); |
| 129 | ptr = mmap(NULL, len, prot, map_flags, share_fd, 0); |
| 130 | if (ptr == MAP_FAILED) { |
| 131 | return; |
| 132 | } |
| 133 | strcpy(ptr, "master"); |
| 134 | cmsg = CMSG_FIRSTHDR(&msg); |
| 135 | cmsg->cmsg_level = SOL_SOCKET; |
| 136 | cmsg->cmsg_type = SCM_RIGHTS; |
| 137 | cmsg->cmsg_len = CMSG_LEN(sizeof(int)); |
| 138 | *(int *)CMSG_DATA(cmsg) = share_fd; |
| 139 | /* send the fd */ |
| 140 | printf("master? [%10s] should be [master]\n", ptr); |
| 141 | printf("master sending msg 1\n"); |
| 142 | sendmsg(sd[0], &msg, 0); |
| 143 | if (recvmsg(sd[0], &msg, 0) < 0) |
| 144 | perror("master recv msg 2"); |
| 145 | printf("master? [%10s] should be [child]\n", ptr); |
| 146 | |
| 147 | /* send ping */ |
| 148 | sendmsg(sd[0], &msg, 0); |
| 149 | printf("master->master? [%10s]\n", ptr); |
| 150 | if (recvmsg(sd[0], &msg, 0) < 0) |
| 151 | perror("master recv 1"); |
| 152 | } else { |
| 153 | struct msghdr msg; |
| 154 | struct cmsghdr *cmsg; |
| 155 | char* ptr; |
| 156 | int fd, recv_fd; |
| 157 | char* child_buf[100]; |
| 158 | /* child */ |
| 159 | struct iovec count_vec = { |
| 160 | .iov_base = child_buf, |
| 161 | .iov_len = sizeof child_buf, |
| 162 | }; |
| 163 | |
| 164 | struct msghdr child_msg = { |
| 165 | .msg_control = buf, |
| 166 | .msg_controllen = sizeof buf, |
| 167 | .msg_iov = &count_vec, |
| 168 | .msg_iovlen = 1, |
| 169 | }; |
| 170 | |
| 171 | if (recvmsg(sd[1], &child_msg, 0) < 0) |
| 172 | perror("child recv msg 1"); |
| 173 | cmsg = CMSG_FIRSTHDR(&child_msg); |
| 174 | if (cmsg == NULL) { |
| 175 | printf("no cmsg rcvd in child"); |
| 176 | return; |
| 177 | } |
| 178 | recv_fd = *(int*)CMSG_DATA(cmsg); |
| 179 | if (recv_fd < 0) { |
| 180 | printf("could not get recv_fd from socket"); |
| 181 | return; |
| 182 | } |
| 183 | printf("child %d\n", recv_fd); |
| 184 | fd = ion_open(); |
| 185 | ptr = mmap(NULL, len, prot, map_flags, recv_fd, 0); |
| 186 | if (ptr == MAP_FAILED) { |
| 187 | return; |
| 188 | } |
| 189 | printf("child? [%10s] should be [master]\n", ptr); |
| 190 | strcpy(ptr, "child"); |
| 191 | printf("child sending msg 2\n"); |
| 192 | sendmsg(sd[1], &child_msg, 0); |
| 193 | } |
| 194 | } |
| 195 | |
| 196 | int main(int argc, char* argv[]) { |
| 197 | int c; |
| 198 | enum tests { |
| 199 | ALLOC_TEST = 0, MAP_TEST, SHARE_TEST, |
| 200 | }; |
| 201 | |
| 202 | while (1) { |
| 203 | static struct option opts[] = { |
| 204 | {"alloc", no_argument, 0, 'a'}, |
| 205 | {"alloc_flags", required_argument, 0, 'f'}, |
| 206 | {"map", no_argument, 0, 'm'}, |
| 207 | {"share", no_argument, 0, 's'}, |
| 208 | {"len", required_argument, 0, 'l'}, |
| 209 | {"align", required_argument, 0, 'g'}, |
| 210 | {"map_flags", required_argument, 0, 'z'}, |
| 211 | {"prot", required_argument, 0, 'p'}, |
| 212 | {"width", required_argument, 0, 'w'}, |
| 213 | {"height", required_argument, 0, 'h'}, |
| 214 | }; |
| 215 | int i = 0; |
| 216 | c = getopt_long(argc, argv, "af:h:l:mr:stw:", opts, &i); |
| 217 | if (c == -1) |
| 218 | break; |
| 219 | |
| 220 | switch (c) { |
| 221 | case 'l': |
| 222 | len = atol(optarg); |
| 223 | break; |
| 224 | case 'g': |
| 225 | align = atol(optarg); |
| 226 | break; |
| 227 | case 'z': |
| 228 | map_flags = 0; |
| 229 | map_flags |= strstr(optarg, "PROT_EXEC") ? |
| 230 | PROT_EXEC : 0; |
| 231 | map_flags |= strstr(optarg, "PROT_READ") ? |
| 232 | PROT_READ: 0; |
| 233 | map_flags |= strstr(optarg, "PROT_WRITE") ? |
| 234 | PROT_WRITE: 0; |
| 235 | map_flags |= strstr(optarg, "PROT_NONE") ? |
| 236 | PROT_NONE: 0; |
| 237 | break; |
| 238 | case 'p': |
| 239 | prot = 0; |
| 240 | prot |= strstr(optarg, "MAP_PRIVATE") ? |
| 241 | MAP_PRIVATE : 0; |
| 242 | prot |= strstr(optarg, "MAP_SHARED") ? |
| 243 | MAP_PRIVATE : 0; |
| 244 | break; |
| 245 | case 'f': |
| 246 | alloc_flags = atol(optarg); |
| 247 | break; |
| 248 | case 'a': |
| 249 | test = ALLOC_TEST; |
| 250 | break; |
| 251 | case 'm': |
| 252 | test = MAP_TEST; |
| 253 | break; |
| 254 | case 's': |
| 255 | test = SHARE_TEST; |
| 256 | break; |
| 257 | case 'w': |
| 258 | width = atol(optarg); |
| 259 | break; |
| 260 | case 'h': |
| 261 | height = atol(optarg); |
| 262 | break; |
| 263 | } |
| 264 | } |
| 265 | printf("test %d, len %u, width %u, height %u align %u, " |
| 266 | "map_flags %d, prot %d, alloc_flags %d\n", test, len, width, |
| 267 | height, align, map_flags, prot, alloc_flags); |
| 268 | switch (test) { |
| 269 | case ALLOC_TEST: |
| 270 | ion_alloc_test(); |
| 271 | break; |
| 272 | case MAP_TEST: |
| 273 | ion_map_test(); |
| 274 | break; |
| 275 | case SHARE_TEST: |
| 276 | ion_share_test(); |
| 277 | break; |
| 278 | default: |
| 279 | printf("must specify a test (alloc, map, share)\n"); |
| 280 | } |
| 281 | return 0; |
| 282 | } |