drivers/gpu/drm/radeon/uvd_v1_0.c

   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 #include <drm/drmP.h>
  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         /* programm 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_STACK_SIZE >> 3;
 128         WREG32(UVD_VCPU_CACHE_OFFSET1, addr);
 129         WREG32(UVD_VCPU_CACHE_SIZE1, size);
 130
 131         addr += size;
 132         size = RADEON_UVD_HEAP_SIZE >> 3;
 133         WREG32(UVD_VCPU_CACHE_OFFSET2, addr);
 134         WREG32(UVD_VCPU_CACHE_SIZE2, size);
 135
 136         /* bits 28-31 */
 137         addr = (rdev->uvd.gpu_addr >> 28) & 0xF;
 138         WREG32(UVD_LMI_ADDR_EXT, (addr << 12) | (addr << 0));
 139
 140         /* bits 32-39 */
 141         addr = (rdev->uvd.gpu_addr >> 32) & 0xFF;
 142         WREG32(UVD_LMI_EXT40_ADDR, addr | (0x9 << 16) | (0x1 << 31));
 143
 144         WREG32(UVD_FW_START, *((uint32_t*)rdev->uvd.cpu_addr));
 145
 146         return 0;
 147 }
 148
 149 /**
 150  * uvd_v1_0_init - start and test UVD block
 151  *
 152  * @rdev: radeon_device pointer
 153  *
 154  * Initialize the hardware, boot up the VCPU and do some testing
 155  */
 156 int uvd_v1_0_init(struct radeon_device *rdev)
 157 {
 158         struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
 159         uint32_t tmp;
 160         int r;
 161
 162         /* raise clocks while booting up the VCPU */
 163         if (rdev->family < CHIP_RV740)
 164                 radeon_set_uvd_clocks(rdev, 10000, 10000);
 165         else
 166                 radeon_set_uvd_clocks(rdev, 53300, 40000);
 167
 168         r = uvd_v1_0_start(rdev);
 169         if (r)
 170                 goto done;
 171
 172         ring->ready = true;
 173         r = radeon_ring_test(rdev, R600_RING_TYPE_UVD_INDEX, ring);
 174         if (r) {
 175                 ring->ready = false;
 176                 goto done;
 177         }
 178
 179         r = radeon_ring_lock(rdev, ring, 10);
 180         if (r) {
 181                 DRM_ERROR("radeon: ring failed to lock UVD ring (%d).\n", r);
 182                 goto done;
 183         }
 184
 185         tmp = PACKET0(UVD_SEMA_WAIT_FAULT_TIMEOUT_CNTL, 0);
 186         radeon_ring_write(ring, tmp);
 187         radeon_ring_write(ring, 0xFFFFF);
 188
 189         tmp = PACKET0(UVD_SEMA_WAIT_INCOMPLETE_TIMEOUT_CNTL, 0);
 190         radeon_ring_write(ring, tmp);
 191         radeon_ring_write(ring, 0xFFFFF);
 192
 193         tmp = PACKET0(UVD_SEMA_SIGNAL_INCOMPLETE_TIMEOUT_CNTL, 0);
 194         radeon_ring_write(ring, tmp);
 195         radeon_ring_write(ring, 0xFFFFF);
 196
 197         /* Clear timeout status bits */
 198         radeon_ring_write(ring, PACKET0(UVD_SEMA_TIMEOUT_STATUS, 0));
 199         radeon_ring_write(ring, 0x8);
 200
 201         radeon_ring_write(ring, PACKET0(UVD_SEMA_CNTL, 0));
 202         radeon_ring_write(ring, 3);
 203
 204         radeon_ring_unlock_commit(rdev, ring, false);
 205
 206 done:
 207         /* lower clocks again */
 208         radeon_set_uvd_clocks(rdev, 0, 0);
 209
 210         if (!r) {
 211                 switch (rdev->family) {
 212                 case CHIP_RV610:
 213                 case CHIP_RV630:
 214                 case CHIP_RV620:
 215                         /* 64byte granularity workaround */
 216                         WREG32(MC_CONFIG, 0);
 217                         WREG32(MC_CONFIG, 1 << 4);
 218                         WREG32(RS_DQ_RD_RET_CONF, 0x3f);
 219                         WREG32(MC_CONFIG, 0x1f);
 220
 221                         /* fall through */
 222                 case CHIP_RV670:
 223                 case CHIP_RV635:
 224
 225                         /* write clean workaround */
 226                         WREG32_P(UVD_VCPU_CNTL, 0x10, ~0x10);
 227                         break;
 228
 229                 default:
 230                         /* TODO: Do we need more? */
 231                         break;
 232                 }
 233
 234                 DRM_INFO("UVD initialized successfully.\n");
 235         }
 236
 237         return r;
 238 }
 239
 240 /**
 241  * uvd_v1_0_fini - stop the hardware block
 242  *
 243  * @rdev: radeon_device pointer
 244  *
 245  * Stop the UVD block, mark ring as not ready any more
 246  */
 247 void uvd_v1_0_fini(struct radeon_device *rdev)
 248 {
 249         struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
 250
 251         uvd_v1_0_stop(rdev);
 252         ring->ready = false;
 253 }
 254
 255 /**
 256  * uvd_v1_0_start - start UVD block
 257  *
 258  * @rdev: radeon_device pointer
 259  *
 260  * Setup and start the UVD block
 261  */
 262 int uvd_v1_0_start(struct radeon_device *rdev)
 263 {
 264         struct radeon_ring *ring = &rdev->ring[R600_RING_TYPE_UVD_INDEX];
 265         uint32_t rb_bufsz;
 266         int i, j, r;
 267
 268         /* disable byte swapping */
 269         u32 lmi_swap_cntl = 0;
 270         u32 mp_swap_cntl = 0;
 271
 272         /* disable clock gating */
 273         WREG32(UVD_CGC_GATE, 0);
 274
 275         /* disable interupt */
 276         WREG32_P(UVD_MASTINT_EN, 0, ~(1 << 1));
 277
 278         /* Stall UMC and register bus before resetting VCPU */
 279         WREG32_P(UVD_LMI_CTRL2, 1 << 8, ~(1 << 8));
 280         WREG32_P(UVD_RB_ARB_CTRL, 1 << 3, ~(1 << 3));
 281         mdelay(1);
 282
 283         /* put LMI, VCPU, RBC etc... into reset */
 284         WREG32(UVD_SOFT_RESET, LMI_SOFT_RESET | VCPU_SOFT_RESET |
 285                LBSI_SOFT_RESET | RBC_SOFT_RESET | CSM_SOFT_RESET |
 286                CXW_SOFT_RESET | TAP_SOFT_RESET | LMI_UMC_SOFT_RESET);
 287         mdelay(5);
 288
 289         /* take UVD block out of reset */
 290         WREG32_P(SRBM_SOFT_RESET, 0, ~SOFT_RESET_UVD);
 291         mdelay(5);
 292
 293         /* initialize UVD memory controller */
 294         WREG32(UVD_LMI_CTRL, 0x40 | (1 << 8) | (1 << 13) |
 295                              (1 << 21) | (1 << 9) | (1 << 20));
 296
 297 #ifdef __BIG_ENDIAN
 298         /* swap (8 in 32) RB and IB */
 299         lmi_swap_cntl = 0xa;
 300         mp_swap_cntl = 0;
 301 #endif
 302         WREG32(UVD_LMI_SWAP_CNTL, lmi_swap_cntl);
 303         WREG32(UVD_MP_SWAP_CNTL, mp_swap_cntl);
 304
 305         WREG32(UVD_MPC_SET_MUXA0, 0x40c2040);
 306         WREG32(UVD_MPC_SET_MUXA1, 0x0);
 307         WREG32(UVD_MPC_SET_MUXB0, 0x40c2040);
 308         WREG32(UVD_MPC_SET_MUXB1, 0x0);
 309         WREG32(UVD_MPC_SET_ALU, 0);
 310         WREG32(UVD_MPC_SET_MUX, 0x88);
 311
 312         /* take all subblocks out of reset, except VCPU */
 313         WREG32(UVD_SOFT_RESET, VCPU_SOFT_RESET);
 314         mdelay(5);
 315
 316         /* enable VCPU clock */
 317         WREG32(UVD_VCPU_CNTL,  1 << 9);
 318
 319         /* enable UMC */
 320         WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8));
 321
 322         WREG32_P(UVD_RB_ARB_CTRL, 0, ~(1 << 3));
 323
 324         /* boot up the VCPU */
 325         WREG32(UVD_SOFT_RESET, 0);
 326         mdelay(10);
 327
 328         for (i = 0; i < 10; ++i) {
 329                 uint32_t status;
 330                 for (j = 0; j < 100; ++j) {
 331                         status = RREG32(UVD_STATUS);
 332                         if (status & 2)
 333                                 break;
 334                         mdelay(10);
 335                 }
 336                 r = 0;
 337                 if (status & 2)
 338                         break;
 339
 340                 DRM_ERROR("UVD not responding, trying to reset the VCPU!!!\n");
 341                 WREG32_P(UVD_SOFT_RESET, VCPU_SOFT_RESET, ~VCPU_SOFT_RESET);
 342                 mdelay(10);
 343                 WREG32_P(UVD_SOFT_RESET, 0, ~VCPU_SOFT_RESET);
 344                 mdelay(10);
 345                 r = -1;
 346         }
 347
 348         if (r) {
 349                 DRM_ERROR("UVD not responding, giving up!!!\n");
 350                 return r;
 351         }
 352
 353         /* enable interupt */
 354         WREG32_P(UVD_MASTINT_EN, 3<<1, ~(3 << 1));
 355
 356         /* force RBC into idle state */
 357         WREG32(UVD_RBC_RB_CNTL, 0x11010101);
 358
 359         /* Set the write pointer delay */
 360         WREG32(UVD_RBC_RB_WPTR_CNTL, 0);
 361
 362         /* programm the 4GB memory segment for rptr and ring buffer */
 363         WREG32(UVD_LMI_EXT40_ADDR, upper_32_bits(ring->gpu_addr) |
 364                                    (0x7 << 16) | (0x1 << 31));
 365
 366         /* Initialize the ring buffer's read and write pointers */
 367         WREG32(UVD_RBC_RB_RPTR, 0x0);
 368
 369         ring->wptr = RREG32(UVD_RBC_RB_RPTR);
 370         WREG32(UVD_RBC_RB_WPTR, ring->wptr);
 371
 372         /* set the ring address */
 373         WREG32(UVD_RBC_RB_BASE, ring->gpu_addr);
 374
 375         /* Set ring buffer size */
 376         rb_bufsz = order_base_2(ring->ring_size);
 377         rb_bufsz = (0x1 << 8) | rb_bufsz;
 378         WREG32_P(UVD_RBC_RB_CNTL, rb_bufsz, ~0x11f1f);
 379
 380         return 0;
 381 }
 382
 383 /**
 384  * uvd_v1_0_stop - stop UVD block
 385  *
 386  * @rdev: radeon_device pointer
 387  *
 388  * stop the UVD block
 389  */
 390 void uvd_v1_0_stop(struct radeon_device *rdev)
 391 {
 392         /* force RBC into idle state */
 393         WREG32(UVD_RBC_RB_CNTL, 0x11010101);
 394
 395         /* Stall UMC and register bus before resetting VCPU */
 396         WREG32_P(UVD_LMI_CTRL2, 1 << 8, ~(1 << 8));
 397         WREG32_P(UVD_RB_ARB_CTRL, 1 << 3, ~(1 << 3));
 398         mdelay(1);
 399
 400         /* put VCPU into reset */
 401         WREG32(UVD_SOFT_RESET, VCPU_SOFT_RESET);
 402         mdelay(5);
 403
 404         /* disable VCPU clock */
 405         WREG32(UVD_VCPU_CNTL, 0x0);
 406
 407         /* Unstall UMC and register bus */
 408         WREG32_P(UVD_LMI_CTRL2, 0, ~(1 << 8));
 409         WREG32_P(UVD_RB_ARB_CTRL, 0, ~(1 << 3));
 410 }
 411
 412 /**
 413  * uvd_v1_0_ring_test - register write test
 414  *
 415  * @rdev: radeon_device pointer
 416  * @ring: radeon_ring pointer
 417  *
 418  * Test if we can successfully write to the context register
 419  */
 420 int uvd_v1_0_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
 421 {
 422         uint32_t tmp = 0;
 423         unsigned i;
 424         int r;
 425
 426         WREG32(UVD_CONTEXT_ID, 0xCAFEDEAD);
 427         r = radeon_ring_lock(rdev, ring, 3);
 428         if (r) {
 429                 DRM_ERROR("radeon: cp failed to lock ring %d (%d).\n",
 430                           ring->idx, r);
 431                 return r;
 432         }
 433         radeon_ring_write(ring, PACKET0(UVD_CONTEXT_ID, 0));
 434         radeon_ring_write(ring, 0xDEADBEEF);
 435         radeon_ring_unlock_commit(rdev, ring, false);
 436         for (i = 0; i < rdev->usec_timeout; i++) {
 437                 tmp = RREG32(UVD_CONTEXT_ID);
 438                 if (tmp == 0xDEADBEEF)
 439                         break;
 440                 DRM_UDELAY(1);
 441         }
 442
 443         if (i < rdev->usec_timeout) {
 444                 DRM_INFO("ring test on %d succeeded in %d usecs\n",
 445                          ring->idx, i);
 446         } else {
 447                 DRM_ERROR("radeon: ring %d test failed (0x%08X)\n",
 448                           ring->idx, tmp);
 449                 r = -EINVAL;
 450         }
 451         return r;
 452 }
 453
 454 /**
 455  * uvd_v1_0_semaphore_emit - emit semaphore command
 456  *
 457  * @rdev: radeon_device pointer
 458  * @ring: radeon_ring pointer
 459  * @semaphore: semaphore to emit commands for
 460  * @emit_wait: true if we should emit a wait command
 461  *
 462  * Emit a semaphore command (either wait or signal) to the UVD ring.
 463  */
 464 bool uvd_v1_0_semaphore_emit(struct radeon_device *rdev,
 465                              struct radeon_ring *ring,
 466                              struct radeon_semaphore *semaphore,
 467                              bool emit_wait)
 468 {
 469         /* disable semaphores for UVD V1 hardware */
 470         return false;
 471 }
 472
 473 /**
 474  * uvd_v1_0_ib_execute - execute indirect buffer
 475  *
 476  * @rdev: radeon_device pointer
 477  * @ib: indirect buffer to execute
 478  *
 479  * Write ring commands to execute the indirect buffer
 480  */
 481 void uvd_v1_0_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
 482 {
 483         struct radeon_ring *ring = &rdev->ring[ib->ring];
 484
 485         radeon_ring_write(ring, PACKET0(UVD_RBC_IB_BASE, 0));
 486         radeon_ring_write(ring, ib->gpu_addr);
 487         radeon_ring_write(ring, PACKET0(UVD_RBC_IB_SIZE, 0));
 488         radeon_ring_write(ring, ib->length_dw);
 489 }
 490
 491 /**
 492  * uvd_v1_0_ib_test - test ib execution
 493  *
 494  * @rdev: radeon_device pointer
 495  * @ring: radeon_ring pointer
 496  *
 497  * Test if we can successfully execute an IB
 498  */
 499 int uvd_v1_0_ib_test(struct radeon_device *rdev, struct radeon_ring *ring)
 500 {
 501         struct radeon_fence *fence = NULL;
 502         int r;
 503
 504         if (rdev->family < CHIP_RV740)
 505                 r = radeon_set_uvd_clocks(rdev, 10000, 10000);
 506         else
 507                 r = radeon_set_uvd_clocks(rdev, 53300, 40000);
 508         if (r) {
 509                 DRM_ERROR("radeon: failed to raise UVD clocks (%d).\n", r);
 510                 return r;
 511         }
 512
 513         r = radeon_uvd_get_create_msg(rdev, ring->idx, 1, NULL);
 514         if (r) {
 515                 DRM_ERROR("radeon: failed to get create msg (%d).\n", r);
 516                 goto error;
 517         }
 518
 519         r = radeon_uvd_get_destroy_msg(rdev, ring->idx, 1, &fence);
 520         if (r) {
 521                 DRM_ERROR("radeon: failed to get destroy ib (%d).\n", r);
 522                 goto error;
 523         }
 524
 525         r = radeon_fence_wait(fence, false);
 526         if (r) {
 527                 DRM_ERROR("radeon: fence wait failed (%d).\n", r);
 528                 goto error;
 529         }
 530         DRM_INFO("ib test on ring %d succeeded\n",  ring->idx);
 531 error:
 532         radeon_fence_unref(&fence);
 533         radeon_set_uvd_clocks(rdev, 0, 0);
 534         return r;
 535 }