1 /* 2 * Copyright 2013 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Christian König <christian.koenig@amd.com> 23 */ 24 25 #include <linux/firmware.h> 26 27 #include "radeon.h" 28 #include "radeon_asic.h" 29 #include "r600d.h" 30 31 /** 32 * uvd_v1_0_get_rptr - get read pointer 33 * 34 * @rdev: radeon_device pointer 35 * @ring: radeon_ring pointer 36 * 37 * Returns the current hardware read pointer 38 */ 39 uint32_t uvd_v1_0_get_rptr(struct radeon_device *rdev, 40 struct radeon_ring *ring) 41 { 42 return RREG32(UVD_RBC_RB_RPTR); 43 } 44 45 /** 46 * uvd_v1_0_get_wptr - get write pointer 47 * 48 * @rdev: radeon_device pointer 49 * @ring: radeon_ring pointer 50 * 51 * Returns the current hardware write pointer 52 */ 53 uint32_t uvd_v1_0_get_wptr(struct radeon_device *rdev, 54 struct radeon_ring *ring) 55 { 56 return RREG32(UVD_RBC_RB_WPTR); 57 } 58 59 /** 60 * uvd_v1_0_set_wptr - set write pointer 61 * 62 * @rdev: radeon_device pointer 63 * @ring: radeon_ring pointer 64 * 65 * Commits the write pointer to the hardware 66 */ 67 void uvd_v1_0_set_wptr(struct radeon_device *rdev, 68 struct radeon_ring *ring) 69 { 70 WREG32(UVD_RBC_RB_WPTR, ring->wptr); 71 } 72 73 /** 74 * uvd_v1_0_fence_emit - emit an fence & trap command 75 * 76 * @rdev: radeon_device pointer 77 * @fence: fence to emit 78 * 79 * Write a fence and a trap command to the ring. 80 */ 81 void uvd_v1_0_fence_emit(struct radeon_device *rdev, 82 struct radeon_fence *fence) 83 { 84 struct radeon_ring *ring = &rdev->ring[fence->ring]; 85 uint64_t addr = rdev->fence_drv[fence->ring].gpu_addr; 86 87 radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA0, 0)); 88 radeon_ring_write(ring, addr & 0xffffffff); 89 radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA1, 0)); 90 radeon_ring_write(ring, fence->seq); 91 radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_CMD, 0)); 92 radeon_ring_write(ring, 0); 93 94 radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA0, 0)); 95 radeon_ring_write(ring, 0); 96 radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_DATA1, 0)); 97 radeon_ring_write(ring, 0); 98 radeon_ring_write(ring, PACKET0(UVD_GPCOM_VCPU_CMD, 0)); 99 radeon_ring_write(ring, 2); 100 return; 101 } 102 103 /** 104 * uvd_v1_0_resume - memory controller programming 105 * 106 * @rdev: radeon_device pointer 107 * 108 * Let the UVD memory controller know it's offsets 109 */ 110 int uvd_v1_0_resume(struct radeon_device *rdev) 111 { 112 uint64_t addr; 113 uint32_t size; 114 int r; 115 116 r = radeon_uvd_resume(rdev); 117 if (r) 118 return r; 119 120 /* program the VCPU memory controller bits 0-27 */ 121 addr = (rdev->uvd.gpu_addr >> 3) + 16; 122 size = RADEON_GPU_PAGE_ALIGN(rdev->uvd_fw->size) >> 3; 123 WREG32(UVD_VCPU_CACHE_OFFSET0, addr); 124 WREG32(UVD_VCPU_CACHE_SIZE0, size); 125 126 addr += size; 127 size = RADEON_UVD_HEAP_SIZE >> 3; 128 WREG32(UVD_VCPU_CACHE_OFFSET1, addr); 129 WREG32(UVD_VCPU_CACHE_SIZE1, size); 130 131 addr += size; 132 size = (RADEON_UVD_STACK_SIZE + 133 (RADEON_UVD_SESSION_SIZE * rdev->uvd.max_handles)) >> 3; 134 WREG32(UVD_VCPU_CACHE_OFFSET2, addr); 135 WREG32(UVD_VCPU_CACHE_SIZE2, size); 136 137 /* bits 28-31 */ 138 addr = (rdev->uvd.gpu_addr >> 28) & 0xF; 139 WREG32(UVD_LMI_ADDR_EXT, (addr << 12) | (addr << 0)); 140 141 /* bits 32-39 */ 142 addr = (rdev->uvd.gpu_addr >> 32) & 0xFF; 143 WREG32(UVD_LMI_EXT40_ADDR, addr | (0x9 << 16) | (0x1 << 31)); 144 145 WREG32(UVD_FW_START, *((uint32_t*)rdev->uvd.cpu_addr)); 146 147 return 0; 148 } 149 150 /** 151 * uvd_v1_0_init - start and test UVD block 152 * 153 * @rdev: radeon_device pointer 154 * 155 * Initialize the hardware, boot up the VCPU and do some testing 156 */ 157 int uvd_v1_0_init(struct radeon_device *rdev) 158 { 159 struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX]; 160 uint32_t tmp; 161 int r; 162 163 /* raise clocks while booting up the VCPU */ 164 if (rdev->family < CHIP_RV740) 165 radeon_set_uvd_clocks(rdev, 10000, 10000); 166 else 167 radeon_set_uvd_clocks(rdev, 53300, 40000); 168 169 r = uvd_v1_0_start(rdev); 170 if (r) 171 goto done; 172 173 ring->ready = true; 174 r = radeon_ring_test(rdev, R600_RING_TYPE_UVD_INDEX, ring); 175 if (r) { 176 ring->ready = false; 177 goto done; 178 } 179 180 r = radeon_ring_lock(rdev, ring, 10); 181 if (r) { 182 DRM_ERROR("radeon: ring failed to lock UVD ring (%d).\n", r); 183 goto done; 184 } 185 186 tmp = PACKET0(UVD_SEMA_WAIT_FAULT_TIMEOUT_CNTL, 0); 187 radeon_ring_write(ring, tmp); 188 radeon_ring_write(ring, 0xFFFFF); 189 190 tmp = PACKET0(UVD_SEMA_WAIT_INCOMPLETE_TIMEOUT_CNTL, 0); 191 radeon_ring_write(ring, tmp); 192 radeon_ring_write(ring, 0xFFFFF); 193 194 tmp = PACKET0(UVD_SEMA_SIGNAL_INCOMPLETE_TIMEOUT_CNTL, 0); 195 radeon_ring_write(ring, tmp); 196 radeon_ring_write(ring, 0xFFFFF); 197 198 /* Clear timeout status bits */ 199 radeon_ring_write(ring, PACKET0(UVD_SEMA_TIMEOUT_STATUS, 0)); 200 radeon_ring_write(ring, 0x8); 201 202 radeon_ring_write(ring, PACKET0(UVD_SEMA_CNTL, 0)); 203 radeon_ring_write(ring, 3); 204 205 radeon_ring_unlock_commit(rdev, ring, false); 206 207 done: 208 /* lower clocks again */ 209 radeon_set_uvd_clocks(rdev, 0, 0); 210 211 if (!r) { 212 switch (rdev->family) { 213 case CHIP_RV610: 214 case CHIP_RV630: 215 case CHIP_RV620: 216 /* 64byte granularity workaround */ 217 WREG32(MC_CONFIG, 0); 218 WREG32(MC_CONFIG, 1 << 4); 219 WREG32(RS_DQ_RD_RET_CONF, 0x3f); 220 WREG32(MC_CONFIG, 0x1f); 221 222 fallthrough; 223 case CHIP_RV670: 224 case CHIP_RV635: 225 226 /* write clean workaround */ 227 WREG32_P(UVD_VCPU_CNTL, 0x10, ~0x10); 228 break; 229 230 default: 231 /* TODO: Do we need more? */ 232 break; 233 } 234 235 DRM_INFO("UVD initialized successfully.\n"); 236 } 237 238 return r; 239 } 240 241 /** 242 * uvd_v1_0_fini - stop the hardware block 243 * 244 * @rdev: radeon_device pointer 245 * 246 * Stop the UVD block, mark ring as not ready any more 247 */ 248 void uvd_v1_0_fini(struct radeon_device *rdev) 249 { 250 struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX]; 251 252 uvd_v1_0_stop(rdev); 253 ring->ready = false; 254 } 255 256 /** 257 * uvd_v1_0_start - start UVD block 258 * 259 * @rdev: radeon_device pointer 260 * 261 * Setup and start the UVD block 262 */ 263 int uvd_v1_0_start(struct radeon_device *rdev) 264 { 265 struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX]; 266 uint32_t rb_bufsz; 267 int i, j, r; 268 269 /* disable byte swapping */ 270 u32 lmi_swap_cntl = 0; 271 u32 mp_swap_cntl = 0; 272 273 /* disable clock gating */ 274 WREG32(UVD_CGC_GATE, 0); 275 276 /* disable interupt */ 277 WREG32_P(UVD_MASTINT_EN, 0, ~(1 << 1)); 278 279 /* Stall UMC and register bus before resetting VCPU */ 280 WREG32_P(UVD_LMI_CTRL2, 1 << 8, ~(1 << 8)); 281 WREG32_P(UVD_RB_ARB_CTRL, 1 << 3, ~(1 << 3)); 282 mdelay(1); 283 284 /* put LMI, VCPU, RBC etc... into reset */ 285 WREG32(UVD_SOFT_RESET, LMI_SOFT_RESET | VCPU_SOFT_RESET | 286 LBSI_SOFT_RESET | RBC_SOFT_RESET | CSM_SOFT_RESET | 287 CXW_SOFT_RESET | TAP_SOFT_RESET | LMI_UMC_SOFT_RESET); 288 mdelay(5); 289 290 /* take UVD block out of reset */ 291 WREG32_P(SRBM_SOFT_RESET, 0, ~SOFT_RESET_UVD); 292 mdelay(5); 293 294 /* initialize UVD memory controller */ 295 WREG32(UVD_LMI_CTRL, 0x40 | (1 << 8) | (1 << 13) | 296 (1 << 21) | (1 << 9) | (1 << 20)); 297 298 #ifdef __BIG_ENDIAN 299 /* swap (8 in 32) RB and IB */ 300 lmi_swap_cntl = 0xa; 301 mp_swap_cntl = 0; 302 #endif 303 WREG32(UVD_LMI_SWAP_CNTL, lmi_swap_cntl); 304 WREG32(UVD_MP_SWAP_CNTL, mp_swap_cntl); 305 306 WREG32(UVD_MPC_SET_MUXA0, 0x40c2040); 307 WREG32(UVD_MPC_SET_MUXA1, 0x0); 308 WREG32(UVD_MPC_SET_MUXB0, 0x40c2040); 309 WREG32(UVD_MPC_SET_MUXB1, 0x0); 310 WREG32(UVD_MPC_SET_ALU, 0); 311 WREG32(UVD_MPC_SET_MUX, 0x88); 312 313 /* take all subblocks out of reset, except VCPU */ 314 WREG32(UVD_SOFT_RESET, VCPU_SOFT_RESET); 315 mdelay(5); 316 317 /* enable VCPU clock */ 318 WREG32(UVD_VCPU_CNTL, 1 << 9); 319 320 /* enable UMC */ 321 WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8)); 322 323 WREG32_P(UVD_RB_ARB_CTRL, 0, ~(1 << 3)); 324 325 /* boot up the VCPU */ 326 WREG32(UVD_SOFT_RESET, 0); 327 mdelay(10); 328 329 for (i = 0; i < 10; ++i) { 330 uint32_t status; 331 for (j = 0; j < 100; ++j) { 332 status = RREG32(UVD_STATUS); 333 if (status & 2) 334 break; 335 mdelay(10); 336 } 337 r = 0; 338 if (status & 2) 339 break; 340 341 DRM_ERROR("UVD not responding, trying to reset the VCPU!!!\n"); 342 WREG32_P(UVD_SOFT_RESET, VCPU_SOFT_RESET, ~VCPU_SOFT_RESET); 343 mdelay(10); 344 WREG32_P(UVD_SOFT_RESET, 0, ~VCPU_SOFT_RESET); 345 mdelay(10); 346 r = -1; 347 } 348 349 if (r) { 350 DRM_ERROR("UVD not responding, giving up!!!\n"); 351 return r; 352 } 353 354 /* enable interupt */ 355 WREG32_P(UVD_MASTINT_EN, 3<<1, ~(3 << 1)); 356 357 /* force RBC into idle state */ 358 WREG32(UVD_RBC_RB_CNTL, 0x11010101); 359 360 /* Set the write pointer delay */ 361 WREG32(UVD_RBC_RB_WPTR_CNTL, 0); 362 363 /* program the 4GB memory segment for rptr and ring buffer */ 364 WREG32(UVD_LMI_EXT40_ADDR, upper_32_bits(ring->gpu_addr) | 365 (0x7 << 16) | (0x1 << 31)); 366 367 /* Initialize the ring buffer's read and write pointers */ 368 WREG32(UVD_RBC_RB_RPTR, 0x0); 369 370 ring->wptr = RREG32(UVD_RBC_RB_RPTR); 371 WREG32(UVD_RBC_RB_WPTR, ring->wptr); 372 373 /* set the ring address */ 374 WREG32(UVD_RBC_RB_BASE, ring->gpu_addr); 375 376 /* Set ring buffer size */ 377 rb_bufsz = order_base_2(ring->ring_size); 378 rb_bufsz = (0x1 << 8) | rb_bufsz; 379 WREG32_P(UVD_RBC_RB_CNTL, rb_bufsz, ~0x11f1f); 380 381 return 0; 382 } 383 384 /** 385 * uvd_v1_0_stop - stop UVD block 386 * 387 * @rdev: radeon_device pointer 388 * 389 * stop the UVD block 390 */ 391 void uvd_v1_0_stop(struct radeon_device *rdev) 392 { 393 /* force RBC into idle state */ 394 WREG32(UVD_RBC_RB_CNTL, 0x11010101); 395 396 /* Stall UMC and register bus before resetting VCPU */ 397 WREG32_P(UVD_LMI_CTRL2, 1 << 8, ~(1 << 8)); 398 WREG32_P(UVD_RB_ARB_CTRL, 1 << 3, ~(1 << 3)); 399 mdelay(1); 400 401 /* put VCPU into reset */ 402 WREG32(UVD_SOFT_RESET, VCPU_SOFT_RESET); 403 mdelay(5); 404 405 /* disable VCPU clock */ 406 WREG32(UVD_VCPU_CNTL, 0x0); 407 408 /* Unstall UMC and register bus */ 409 WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8)); 410 WREG32_P(UVD_RB_ARB_CTRL, 0, ~(1 << 3)); 411 } 412 413 /** 414 * uvd_v1_0_ring_test - register write test 415 * 416 * @rdev: radeon_device pointer 417 * @ring: radeon_ring pointer 418 * 419 * Test if we can successfully write to the context register 420 */ 421 int uvd_v1_0_ring_test(struct radeon_device *rdev, struct radeon_ring *ring) 422 { 423 uint32_t tmp = 0; 424 unsigned i; 425 int r; 426 427 WREG32(UVD_CONTEXT_ID, 0xCAFEDEAD); 428 r = radeon_ring_lock(rdev, ring, 3); 429 if (r) { 430 DRM_ERROR("radeon: cp failed to lock ring %d (%d).\n", 431 ring->idx, r); 432 return r; 433 } 434 radeon_ring_write(ring, PACKET0(UVD_CONTEXT_ID, 0)); 435 radeon_ring_write(ring, 0xDEADBEEF); 436 radeon_ring_unlock_commit(rdev, ring, false); 437 for (i = 0; i < rdev->usec_timeout; i++) { 438 tmp = RREG32(UVD_CONTEXT_ID); 439 if (tmp == 0xDEADBEEF) 440 break; 441 udelay(1); 442 } 443 444 if (i < rdev->usec_timeout) { 445 DRM_INFO("ring test on %d succeeded in %d usecs\n", 446 ring->idx, i); 447 } else { 448 DRM_ERROR("radeon: ring %d test failed (0x%08X)\n", 449 ring->idx, tmp); 450 r = -EINVAL; 451 } 452 return r; 453 } 454 455 /** 456 * uvd_v1_0_semaphore_emit - emit semaphore command 457 * 458 * @rdev: radeon_device pointer 459 * @ring: radeon_ring pointer 460 * @semaphore: semaphore to emit commands for 461 * @emit_wait: true if we should emit a wait command 462 * 463 * Emit a semaphore command (either wait or signal) to the UVD ring. 464 */ 465 bool uvd_v1_0_semaphore_emit(struct radeon_device *rdev, 466 struct radeon_ring *ring, 467 struct radeon_semaphore *semaphore, 468 bool emit_wait) 469 { 470 /* disable semaphores for UVD V1 hardware */ 471 return false; 472 } 473 474 /** 475 * uvd_v1_0_ib_execute - execute indirect buffer 476 * 477 * @rdev: radeon_device pointer 478 * @ib: indirect buffer to execute 479 * 480 * Write ring commands to execute the indirect buffer 481 */ 482 void uvd_v1_0_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib) 483 { 484 struct radeon_ring *ring = &rdev->ring[ib->ring]; 485 486 radeon_ring_write(ring, PACKET0(UVD_RBC_IB_BASE, 0)); 487 radeon_ring_write(ring, ib->gpu_addr); 488 radeon_ring_write(ring, PACKET0(UVD_RBC_IB_SIZE, 0)); 489 radeon_ring_write(ring, ib->length_dw); 490 } 491 492 /** 493 * uvd_v1_0_ib_test - test ib execution 494 * 495 * @rdev: radeon_device pointer 496 * @ring: radeon_ring pointer 497 * 498 * Test if we can successfully execute an IB 499 */ 500 int uvd_v1_0_ib_test(struct radeon_device *rdev, struct radeon_ring *ring) 501 { 502 struct radeon_fence *fence = NULL; 503 int r; 504 505 if (rdev->family < CHIP_RV740) 506 r = radeon_set_uvd_clocks(rdev, 10000, 10000); 507 else 508 r = radeon_set_uvd_clocks(rdev, 53300, 40000); 509 if (r) { 510 DRM_ERROR("radeon: failed to raise UVD clocks (%d).\n", r); 511 return r; 512 } 513 514 r = radeon_uvd_get_create_msg(rdev, ring->idx, 1, NULL); 515 if (r) { 516 DRM_ERROR("radeon: failed to get create msg (%d).\n", r); 517 goto error; 518 } 519 520 r = radeon_uvd_get_destroy_msg(rdev, ring->idx, 1, &fence); 521 if (r) { 522 DRM_ERROR("radeon: failed to get destroy ib (%d).\n", r); 523 goto error; 524 } 525 526 r = radeon_fence_wait_timeout(fence, false, usecs_to_jiffies( 527 RADEON_USEC_IB_TEST_TIMEOUT)); 528 if (r < 0) { 529 DRM_ERROR("radeon: fence wait failed (%d).\n", r); 530 goto error; 531 } else if (r == 0) { 532 DRM_ERROR("radeon: fence wait timed out.\n"); 533 r = -ETIMEDOUT; 534 goto error; 535 } 536 r = 0; 537 DRM_INFO("ib test on ring %d succeeded\n", ring->idx); 538 error: 539 radeon_fence_unref(&fence); 540 radeon_set_uvd_clocks(rdev, 0, 0); 541 return r; 542 } 543