Colin Cross | 363441b | 2013-11-07 23:06:58 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2013 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <fcntl.h> |
| 18 | #include <sys/mman.h> |
| 19 | #include <sys/stat.h> |
| 20 | #include <sys/types.h> |
| 21 | |
| 22 | #include <linux/ion_test.h> |
| 23 | |
| 24 | #include <gtest/gtest.h> |
| 25 | |
| 26 | #include <ion/ion.h> |
| 27 | |
| 28 | #include "ion_test_fixture.h" |
| 29 | |
| 30 | #define ALIGN(x,y) (((x) + ((y) - 1)) & ~((y) - 1)) |
| 31 | |
| 32 | class Device : public IonAllHeapsTest { |
| 33 | public: |
| 34 | virtual void SetUp(); |
| 35 | virtual void TearDown(); |
| 36 | int m_deviceFd; |
| 37 | void readDMA(int fd, void *buf, size_t size); |
| 38 | void writeDMA(int fd, void *buf, size_t size); |
| 39 | void readKernel(int fd, void *buf, size_t size); |
| 40 | void writeKernel(int fd, void *buf, size_t size); |
| 41 | void blowCache(); |
| 42 | void dirtyCache(void *ptr, size_t size); |
| 43 | }; |
| 44 | |
| 45 | void Device::SetUp() |
| 46 | { |
| 47 | IonAllHeapsTest::SetUp(); |
| 48 | m_deviceFd = open("/dev/ion-test", O_RDWR); |
| 49 | ASSERT_GE(m_deviceFd, 0); |
| 50 | } |
| 51 | |
| 52 | void Device::TearDown() |
| 53 | { |
| 54 | ASSERT_EQ(0, close(m_deviceFd)); |
| 55 | IonAllHeapsTest::TearDown(); |
| 56 | } |
| 57 | |
| 58 | void Device::readDMA(int fd, void *buf, size_t size) |
| 59 | { |
| 60 | ASSERT_EQ(0, ioctl(m_deviceFd, ION_IOC_TEST_SET_FD, fd)); |
| 61 | struct ion_test_rw_data ion_test_rw_data = { |
| 62 | .ptr = (uint64_t)buf, |
| 63 | .offset = 0, |
| 64 | .size = size, |
| 65 | .write = 0, |
| 66 | }; |
| 67 | |
| 68 | ASSERT_EQ(0, ioctl(m_deviceFd, ION_IOC_TEST_DMA_MAPPING, &ion_test_rw_data)); |
| 69 | ASSERT_EQ(0, ioctl(m_deviceFd, ION_IOC_TEST_SET_FD, -1)); |
| 70 | } |
| 71 | |
| 72 | void Device::writeDMA(int fd, void *buf, size_t size) |
| 73 | { |
| 74 | ASSERT_EQ(0, ioctl(m_deviceFd, ION_IOC_TEST_SET_FD, fd)); |
| 75 | struct ion_test_rw_data ion_test_rw_data = { |
| 76 | .ptr = (uint64_t)buf, |
| 77 | .offset = 0, |
| 78 | .size = size, |
| 79 | .write = 1, |
| 80 | }; |
| 81 | |
| 82 | ASSERT_EQ(0, ioctl(m_deviceFd, ION_IOC_TEST_DMA_MAPPING, &ion_test_rw_data)); |
| 83 | ASSERT_EQ(0, ioctl(m_deviceFd, ION_IOC_TEST_SET_FD, -1)); |
| 84 | } |
| 85 | |
| 86 | void Device::readKernel(int fd, void *buf, size_t size) |
| 87 | { |
| 88 | ASSERT_EQ(0, ioctl(m_deviceFd, ION_IOC_TEST_SET_FD, fd)); |
| 89 | struct ion_test_rw_data ion_test_rw_data = { |
| 90 | .ptr = (uint64_t)buf, |
| 91 | .offset = 0, |
| 92 | .size = size, |
| 93 | .write = 0, |
| 94 | }; |
| 95 | |
| 96 | ASSERT_EQ(0, ioctl(m_deviceFd, ION_IOC_TEST_KERNEL_MAPPING, &ion_test_rw_data)); |
| 97 | ASSERT_EQ(0, ioctl(m_deviceFd, ION_IOC_TEST_SET_FD, -1)); |
| 98 | } |
| 99 | |
| 100 | void Device::writeKernel(int fd, void *buf, size_t size) |
| 101 | { |
| 102 | ASSERT_EQ(0, ioctl(m_deviceFd, ION_IOC_TEST_SET_FD, fd)); |
| 103 | struct ion_test_rw_data ion_test_rw_data = { |
| 104 | .ptr = (uint64_t)buf, |
| 105 | .offset = 0, |
| 106 | .size = size, |
| 107 | .write = 1, |
| 108 | }; |
| 109 | |
| 110 | ASSERT_EQ(0, ioctl(m_deviceFd, ION_IOC_TEST_KERNEL_MAPPING, &ion_test_rw_data)); |
| 111 | ASSERT_EQ(0, ioctl(m_deviceFd, ION_IOC_TEST_SET_FD, -1)); |
| 112 | } |
| 113 | |
| 114 | void Device::blowCache() |
| 115 | { |
| 116 | const size_t bigger_than_cache = 8*1024*1024; |
| 117 | void *buf1 = malloc(bigger_than_cache); |
| 118 | void *buf2 = malloc(bigger_than_cache); |
| 119 | memset(buf1, 0xaa, bigger_than_cache); |
| 120 | memcpy(buf2, buf1, bigger_than_cache); |
| 121 | free(buf1); |
| 122 | free(buf2); |
| 123 | } |
| 124 | |
| 125 | void Device::dirtyCache(void *ptr, size_t size) |
| 126 | { |
| 127 | /* try to dirty cache lines */ |
| 128 | for (size_t i = size-1; i > 0; i--) { |
| 129 | ((volatile char *)ptr)[i]; |
| 130 | ((char *)ptr)[i] = i; |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | TEST_F(Device, KernelReadCached) |
| 135 | { |
| 136 | void *alloc = malloc(8192 + 1024); |
| 137 | void *buf = (void *)(ALIGN((unsigned long)alloc, 4096) + 1024); |
| 138 | |
| 139 | for (unsigned int heapMask : m_allHeaps) { |
| 140 | SCOPED_TRACE(::testing::Message() << "heap " << heapMask); |
| 141 | int map_fd = -1; |
| 142 | unsigned int flags = ION_FLAG_CACHED; |
| 143 | |
| 144 | ASSERT_EQ(0, ion_alloc_fd(m_ionFd, 4096, 0, heapMask, flags, &map_fd)); |
| 145 | ASSERT_GE(map_fd, 0); |
| 146 | |
| 147 | void *ptr; |
| 148 | ptr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0); |
| 149 | ASSERT_TRUE(ptr != NULL); |
| 150 | |
| 151 | for (int i = 0; i < 4096; i++) |
| 152 | ((char *)ptr)[i] = i; |
| 153 | |
| 154 | ((char*)buf)[4096] = 0x12; |
| 155 | readKernel(map_fd, buf, 4096); |
| 156 | ASSERT_EQ(((char*)buf)[4096], 0x12); |
| 157 | |
| 158 | for (int i = 0; i < 4096; i++) |
| 159 | ASSERT_EQ((char)i, ((char *)buf)[i]); |
| 160 | |
| 161 | ASSERT_EQ(0, munmap(ptr, 4096)); |
| 162 | ASSERT_EQ(0, close(map_fd)); |
| 163 | } |
| 164 | |
| 165 | free(alloc); |
| 166 | } |
| 167 | |
| 168 | TEST_F(Device, KernelWriteCached) |
| 169 | { |
| 170 | void *alloc = malloc(8192 + 1024); |
| 171 | void *buf = (void *)(ALIGN((unsigned long)alloc, 4096) + 1024); |
| 172 | |
| 173 | for (int i = 0; i < 4096; i++) |
| 174 | ((char *)buf)[i] = i; |
| 175 | |
| 176 | for (unsigned int heapMask : m_allHeaps) { |
| 177 | SCOPED_TRACE(::testing::Message() << "heap " << heapMask); |
| 178 | int map_fd = -1; |
| 179 | unsigned int flags = ION_FLAG_CACHED; |
| 180 | |
| 181 | ASSERT_EQ(0, ion_alloc_fd(m_ionFd, 4096, 0, heapMask, flags, &map_fd)); |
| 182 | ASSERT_GE(map_fd, 0); |
| 183 | |
| 184 | void *ptr; |
| 185 | ptr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0); |
| 186 | ASSERT_TRUE(ptr != NULL); |
| 187 | |
| 188 | dirtyCache(ptr, 4096); |
| 189 | |
| 190 | writeKernel(map_fd, buf, 4096); |
| 191 | |
| 192 | for (int i = 0; i < 4096; i++) |
| 193 | ASSERT_EQ((char)i, ((char *)ptr)[i]) << i; |
| 194 | |
| 195 | ASSERT_EQ(0, munmap(ptr, 4096)); |
| 196 | ASSERT_EQ(0, close(map_fd)); |
| 197 | } |
| 198 | |
| 199 | free(alloc); |
| 200 | } |
| 201 | |
| 202 | TEST_F(Device, DMAReadCached) |
| 203 | { |
| 204 | void *alloc = malloc(8192 + 1024); |
| 205 | void *buf = (void *)(ALIGN((unsigned long)alloc, 4096) + 1024); |
| 206 | |
| 207 | for (unsigned int heapMask : m_allHeaps) { |
| 208 | SCOPED_TRACE(::testing::Message() << "heap " << heapMask); |
| 209 | int map_fd = -1; |
| 210 | unsigned int flags = ION_FLAG_CACHED; |
| 211 | |
| 212 | ASSERT_EQ(0, ion_alloc_fd(m_ionFd, 4096, 0, heapMask, flags, &map_fd)); |
| 213 | ASSERT_GE(map_fd, 0); |
| 214 | |
| 215 | void *ptr; |
| 216 | ptr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0); |
| 217 | ASSERT_TRUE(ptr != NULL); |
| 218 | |
| 219 | for (int i = 0; i < 4096; i++) |
| 220 | ((char *)ptr)[i] = i; |
| 221 | |
| 222 | readDMA(map_fd, buf, 4096); |
| 223 | |
| 224 | for (int i = 0; i < 4096; i++) |
| 225 | ASSERT_EQ((char)i, ((char *)buf)[i]); |
| 226 | |
| 227 | ASSERT_EQ(0, munmap(ptr, 4096)); |
| 228 | ASSERT_EQ(0, close(map_fd)); |
| 229 | } |
| 230 | |
| 231 | free(alloc); |
| 232 | } |
| 233 | |
| 234 | TEST_F(Device, DMAWriteCached) |
| 235 | { |
| 236 | void *alloc = malloc(8192 + 1024); |
| 237 | void *buf = (void *)(ALIGN((unsigned long)alloc, 4096) + 1024); |
| 238 | |
| 239 | for (int i = 0; i < 4096; i++) |
| 240 | ((char *)buf)[i] = i; |
| 241 | |
| 242 | for (unsigned int heapMask : m_allHeaps) { |
| 243 | SCOPED_TRACE(::testing::Message() << "heap " << heapMask); |
| 244 | int map_fd = -1; |
| 245 | unsigned int flags = ION_FLAG_CACHED; |
| 246 | |
| 247 | ASSERT_EQ(0, ion_alloc_fd(m_ionFd, 4096, 0, heapMask, flags, &map_fd)); |
| 248 | ASSERT_GE(map_fd, 0); |
| 249 | |
| 250 | void *ptr; |
| 251 | ptr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0); |
| 252 | ASSERT_TRUE(ptr != NULL); |
| 253 | |
| 254 | dirtyCache(ptr, 4096); |
| 255 | |
| 256 | writeDMA(map_fd, buf, 4096); |
| 257 | |
| 258 | for (int i = 0; i < 4096; i++) |
| 259 | ASSERT_EQ((char)i, ((char *)ptr)[i]) << i; |
| 260 | |
| 261 | ASSERT_EQ(0, munmap(ptr, 4096)); |
| 262 | ASSERT_EQ(0, close(map_fd)); |
| 263 | } |
| 264 | |
| 265 | free(alloc); |
| 266 | } |
| 267 | |
| 268 | TEST_F(Device, KernelReadCachedNeedsSync) |
| 269 | { |
| 270 | void *alloc = malloc(8192 + 1024); |
| 271 | void *buf = (void *)(ALIGN((unsigned long)alloc, 4096) + 1024); |
| 272 | |
| 273 | for (unsigned int heapMask : m_allHeaps) { |
| 274 | SCOPED_TRACE(::testing::Message() << "heap " << heapMask); |
| 275 | int map_fd = -1; |
| 276 | unsigned int flags = ION_FLAG_CACHED | ION_FLAG_CACHED_NEEDS_SYNC; |
| 277 | |
| 278 | ASSERT_EQ(0, ion_alloc_fd(m_ionFd, 4096, 0, heapMask, flags, &map_fd)); |
| 279 | ASSERT_GE(map_fd, 0); |
| 280 | |
| 281 | void *ptr; |
| 282 | ptr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0); |
| 283 | ASSERT_TRUE(ptr != NULL); |
| 284 | |
| 285 | for (int i = 0; i < 4096; i++) |
| 286 | ((char *)ptr)[i] = i; |
| 287 | |
| 288 | ((char*)buf)[4096] = 0x12; |
| 289 | readKernel(map_fd, buf, 4096); |
| 290 | ASSERT_EQ(((char*)buf)[4096], 0x12); |
| 291 | |
| 292 | for (int i = 0; i < 4096; i++) |
| 293 | ASSERT_EQ((char)i, ((char *)buf)[i]); |
| 294 | |
| 295 | ASSERT_EQ(0, munmap(ptr, 4096)); |
| 296 | ASSERT_EQ(0, close(map_fd)); |
| 297 | } |
| 298 | |
| 299 | free(alloc); |
| 300 | } |
| 301 | |
| 302 | TEST_F(Device, KernelWriteCachedNeedsSync) |
| 303 | { |
| 304 | void *alloc = malloc(8192 + 1024); |
| 305 | void *buf = (void *)(ALIGN((unsigned long)alloc, 4096) + 1024); |
| 306 | |
| 307 | for (int i = 0; i < 4096; i++) |
| 308 | ((char *)buf)[i] = i; |
| 309 | |
| 310 | for (unsigned int heapMask : m_allHeaps) { |
| 311 | SCOPED_TRACE(::testing::Message() << "heap " << heapMask); |
| 312 | int map_fd = -1; |
| 313 | unsigned int flags = ION_FLAG_CACHED | ION_FLAG_CACHED_NEEDS_SYNC; |
| 314 | |
| 315 | ASSERT_EQ(0, ion_alloc_fd(m_ionFd, 4096, 0, heapMask, flags, &map_fd)); |
| 316 | ASSERT_GE(map_fd, 0); |
| 317 | |
| 318 | void *ptr; |
| 319 | ptr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0); |
| 320 | ASSERT_TRUE(ptr != NULL); |
| 321 | |
| 322 | dirtyCache(ptr, 4096); |
| 323 | |
| 324 | writeKernel(map_fd, buf, 4096); |
| 325 | |
| 326 | for (int i = 0; i < 4096; i++) |
| 327 | ASSERT_EQ((char)i, ((char *)ptr)[i]) << i; |
| 328 | |
| 329 | ASSERT_EQ(0, munmap(ptr, 4096)); |
| 330 | ASSERT_EQ(0, close(map_fd)); |
| 331 | } |
| 332 | |
| 333 | free(alloc); |
| 334 | } |
| 335 | |
| 336 | TEST_F(Device, DMAReadCachedNeedsSync) |
| 337 | { |
| 338 | void *alloc = malloc(8192 + 1024); |
| 339 | void *buf = (void *)(ALIGN((unsigned long)alloc, 4096) + 1024); |
| 340 | |
| 341 | for (unsigned int heapMask : m_allHeaps) { |
| 342 | SCOPED_TRACE(::testing::Message() << "heap " << heapMask); |
| 343 | int map_fd = -1; |
| 344 | unsigned int flags = ION_FLAG_CACHED | ION_FLAG_CACHED_NEEDS_SYNC; |
| 345 | |
| 346 | ASSERT_EQ(0, ion_alloc_fd(m_ionFd, 4096, 0, heapMask, flags, &map_fd)); |
| 347 | ASSERT_GE(map_fd, 0); |
| 348 | |
| 349 | void *ptr; |
| 350 | ptr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0); |
| 351 | ASSERT_TRUE(ptr != NULL); |
| 352 | |
| 353 | for (int i = 0; i < 4096; i++) |
| 354 | ((char *)ptr)[i] = i; |
| 355 | |
| 356 | ion_sync_fd(m_ionFd, map_fd); |
| 357 | |
| 358 | readDMA(map_fd, buf, 4096); |
| 359 | |
| 360 | for (int i = 0; i < 4096; i++) |
| 361 | ASSERT_EQ((char)i, ((char *)buf)[i]); |
| 362 | |
| 363 | ASSERT_EQ(0, munmap(ptr, 4096)); |
| 364 | ASSERT_EQ(0, close(map_fd)); |
| 365 | } |
| 366 | |
| 367 | free(alloc); |
| 368 | } |
| 369 | |
| 370 | TEST_F(Device, DMAWriteCachedNeedsSync) |
| 371 | { |
| 372 | void *alloc = malloc(8192 + 1024); |
| 373 | void *buf = (void *)(ALIGN((unsigned long)alloc, 4096) + 1024); |
| 374 | |
| 375 | for (int i = 0; i < 4096; i++) |
| 376 | ((char *)buf)[i] = i; |
| 377 | |
| 378 | for (unsigned int heapMask : m_allHeaps) { |
| 379 | SCOPED_TRACE(::testing::Message() << "heap " << heapMask); |
| 380 | int map_fd = -1; |
| 381 | unsigned int flags = ION_FLAG_CACHED | ION_FLAG_CACHED_NEEDS_SYNC; |
| 382 | |
| 383 | ASSERT_EQ(0, ion_alloc_fd(m_ionFd, 4096, 0, heapMask, flags, &map_fd)); |
| 384 | ASSERT_GE(map_fd, 0); |
| 385 | |
| 386 | void *ptr; |
| 387 | ptr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0); |
| 388 | ASSERT_TRUE(ptr != NULL); |
| 389 | |
| 390 | dirtyCache(ptr, 4096); |
| 391 | |
| 392 | writeDMA(map_fd, buf, 4096); |
| 393 | |
| 394 | ion_sync_fd(m_ionFd, map_fd); |
| 395 | |
| 396 | for (int i = 0; i < 4096; i++) |
| 397 | ASSERT_EQ((char)i, ((char *)ptr)[i]) << i; |
| 398 | |
| 399 | ASSERT_EQ(0, munmap(ptr, 4096)); |
| 400 | ASSERT_EQ(0, close(map_fd)); |
| 401 | } |
| 402 | |
| 403 | free(alloc); |
| 404 | } |
| 405 | TEST_F(Device, KernelRead) |
| 406 | { |
| 407 | void *alloc = malloc(8192 + 1024); |
| 408 | void *buf = (void *)(ALIGN((unsigned long)alloc, 4096) + 1024); |
| 409 | |
| 410 | for (unsigned int heapMask : m_allHeaps) { |
| 411 | SCOPED_TRACE(::testing::Message() << "heap " << heapMask); |
| 412 | int map_fd = -1; |
| 413 | unsigned int flags = 0; |
| 414 | |
| 415 | ASSERT_EQ(0, ion_alloc_fd(m_ionFd, 4096, 0, heapMask, flags, &map_fd)); |
| 416 | ASSERT_GE(map_fd, 0); |
| 417 | |
| 418 | void *ptr; |
| 419 | ptr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0); |
| 420 | ASSERT_TRUE(ptr != NULL); |
| 421 | |
| 422 | for (int i = 0; i < 4096; i++) |
| 423 | ((char *)ptr)[i] = i; |
| 424 | |
| 425 | ((char*)buf)[4096] = 0x12; |
| 426 | readKernel(map_fd, buf, 4096); |
| 427 | ASSERT_EQ(((char*)buf)[4096], 0x12); |
| 428 | |
| 429 | for (int i = 0; i < 4096; i++) |
| 430 | ASSERT_EQ((char)i, ((char *)buf)[i]); |
| 431 | |
| 432 | ASSERT_EQ(0, munmap(ptr, 4096)); |
| 433 | ASSERT_EQ(0, close(map_fd)); |
| 434 | } |
| 435 | |
| 436 | free(alloc); |
| 437 | } |
| 438 | |
| 439 | TEST_F(Device, KernelWrite) |
| 440 | { |
| 441 | void *alloc = malloc(8192 + 1024); |
| 442 | void *buf = (void *)(ALIGN((unsigned long)alloc, 4096) + 1024); |
| 443 | |
| 444 | for (int i = 0; i < 4096; i++) |
| 445 | ((char *)buf)[i] = i; |
| 446 | |
| 447 | for (unsigned int heapMask : m_allHeaps) { |
| 448 | SCOPED_TRACE(::testing::Message() << "heap " << heapMask); |
| 449 | int map_fd = -1; |
| 450 | unsigned int flags = 0; |
| 451 | |
| 452 | ASSERT_EQ(0, ion_alloc_fd(m_ionFd, 4096, 0, heapMask, flags, &map_fd)); |
| 453 | ASSERT_GE(map_fd, 0); |
| 454 | |
| 455 | void *ptr; |
| 456 | ptr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0); |
| 457 | ASSERT_TRUE(ptr != NULL); |
| 458 | |
| 459 | dirtyCache(ptr, 4096); |
| 460 | |
| 461 | writeKernel(map_fd, buf, 4096); |
| 462 | |
| 463 | for (int i = 0; i < 4096; i++) |
| 464 | ASSERT_EQ((char)i, ((char *)ptr)[i]) << i; |
| 465 | |
| 466 | ASSERT_EQ(0, munmap(ptr, 4096)); |
| 467 | ASSERT_EQ(0, close(map_fd)); |
| 468 | } |
| 469 | |
| 470 | free(alloc); |
| 471 | } |
| 472 | |
| 473 | TEST_F(Device, DMARead) |
| 474 | { |
| 475 | void *alloc = malloc(8192 + 1024); |
| 476 | void *buf = (void *)(ALIGN((unsigned long)alloc, 4096) + 1024); |
| 477 | |
| 478 | for (unsigned int heapMask : m_allHeaps) { |
| 479 | SCOPED_TRACE(::testing::Message() << "heap " << heapMask); |
| 480 | int map_fd = -1; |
| 481 | unsigned int flags = 0; |
| 482 | |
| 483 | ASSERT_EQ(0, ion_alloc_fd(m_ionFd, 4096, 0, heapMask, flags, &map_fd)); |
| 484 | ASSERT_GE(map_fd, 0); |
| 485 | |
| 486 | void *ptr; |
| 487 | ptr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0); |
| 488 | ASSERT_TRUE(ptr != NULL); |
| 489 | |
| 490 | for (int i = 0; i < 4096; i++) |
| 491 | ((char *)ptr)[i] = i; |
| 492 | |
| 493 | readDMA(map_fd, buf, 4096); |
| 494 | |
| 495 | for (int i = 0; i < 4096; i++) |
| 496 | ASSERT_EQ((char)i, ((char *)buf)[i]); |
| 497 | |
| 498 | ASSERT_EQ(0, munmap(ptr, 4096)); |
| 499 | ASSERT_EQ(0, close(map_fd)); |
| 500 | } |
| 501 | |
| 502 | free(alloc); |
| 503 | } |
| 504 | |
| 505 | TEST_F(Device, DMAWrite) |
| 506 | { |
| 507 | void *alloc = malloc(8192 + 1024); |
| 508 | void *buf = (void *)(ALIGN((unsigned long)alloc, 4096) + 1024); |
| 509 | |
| 510 | for (int i = 0; i < 4096; i++) |
| 511 | ((char *)buf)[i] = i; |
| 512 | |
| 513 | for (unsigned int heapMask : m_allHeaps) { |
| 514 | SCOPED_TRACE(::testing::Message() << "heap " << heapMask); |
| 515 | int map_fd = -1; |
| 516 | unsigned int flags = 0; |
| 517 | |
| 518 | ASSERT_EQ(0, ion_alloc_fd(m_ionFd, 4096, 0, heapMask, flags, &map_fd)); |
| 519 | ASSERT_GE(map_fd, 0); |
| 520 | |
| 521 | void *ptr; |
| 522 | ptr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0); |
| 523 | ASSERT_TRUE(ptr != NULL); |
| 524 | |
| 525 | dirtyCache(ptr, 4096); |
| 526 | |
| 527 | writeDMA(map_fd, buf, 4096); |
| 528 | |
| 529 | for (int i = 0; i < 4096; i++) |
| 530 | ASSERT_EQ((char)i, ((char *)ptr)[i]) << i; |
| 531 | |
| 532 | ASSERT_EQ(0, munmap(ptr, 4096)); |
| 533 | ASSERT_EQ(0, close(map_fd)); |
| 534 | } |
| 535 | |
| 536 | free(alloc); |
| 537 | } |
| 538 | |
| 539 | TEST_F(Device, IsCached) |
| 540 | { |
| 541 | void *buf = malloc(4096); |
| 542 | |
| 543 | for (unsigned int heapMask : m_allHeaps) { |
| 544 | SCOPED_TRACE(::testing::Message() << "heap " << heapMask); |
| 545 | int map_fd = -1; |
| 546 | unsigned int flags = ION_FLAG_CACHED | ION_FLAG_CACHED_NEEDS_SYNC; |
| 547 | |
| 548 | ASSERT_EQ(0, ion_alloc_fd(m_ionFd, 4096, 0, heapMask, flags, &map_fd)); |
| 549 | ASSERT_GE(map_fd, 0); |
| 550 | |
| 551 | void *ptr; |
| 552 | ptr = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, map_fd, 0); |
| 553 | ASSERT_TRUE(ptr != NULL); |
| 554 | |
| 555 | dirtyCache(ptr, 4096); |
| 556 | |
| 557 | readDMA(map_fd, buf, 4096); |
| 558 | |
| 559 | bool same = true; |
| 560 | for (int i = 4096-16; i >= 0; i -= 16) |
| 561 | if (((char *)buf)[i] != i) |
| 562 | same = false; |
| 563 | ASSERT_FALSE(same); |
| 564 | |
| 565 | ASSERT_EQ(0, munmap(ptr, 4096)); |
| 566 | ASSERT_EQ(0, close(map_fd)); |
| 567 | } |
| 568 | } |