drivers/gpu/drm/amd/amdgpu/uvd_v4_2.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 <[email protected]>
  23  */
  24
  25 #include <linux/firmware.h>
  26
  27 #include "amdgpu.h"
  28 #include "amdgpu_uvd.h"
  29 #include "cikd.h"
  30
  31 #include "uvd/uvd_4_2_d.h"
  32 #include "uvd/uvd_4_2_sh_mask.h"
  33
  34 #include "oss/oss_2_0_d.h"
  35 #include "oss/oss_2_0_sh_mask.h"
  36
  37 #include "bif/bif_4_1_d.h"
  38
  39 #include "smu/smu_7_0_1_d.h"
  40 #include "smu/smu_7_0_1_sh_mask.h"
  41
  42 static void uvd_v4_2_mc_resume(struct amdgpu_device *adev);
  43 static void uvd_v4_2_set_ring_funcs(struct amdgpu_device *adev);
  44 static void uvd_v4_2_set_irq_funcs(struct amdgpu_device *adev);
  45 static int uvd_v4_2_start(struct amdgpu_device *adev);
  46 static void uvd_v4_2_stop(struct amdgpu_device *adev);
  47 static int uvd_v4_2_set_clockgating_state(void *handle,
  48                                 enum amd_clockgating_state state);
  49 static void uvd_v4_2_set_dcm(struct amdgpu_device *adev,
  50                              bool sw_mode);
  51 /**
  52  * uvd_v4_2_ring_get_rptr - get read pointer
  53  *
  54  * @ring: amdgpu_ring pointer
  55  *
  56  * Returns the current hardware read pointer
  57  */
  58 static uint64_t uvd_v4_2_ring_get_rptr(struct amdgpu_ring *ring)
  59 {
  60         struct amdgpu_device *adev = ring->adev;
  61
  62         return RREG32(mmUVD_RBC_RB_RPTR);
  63 }
  64
  65 /**
  66  * uvd_v4_2_ring_get_wptr - get write pointer
  67  *
  68  * @ring: amdgpu_ring pointer
  69  *
  70  * Returns the current hardware write pointer
  71  */
  72 static uint64_t uvd_v4_2_ring_get_wptr(struct amdgpu_ring *ring)
  73 {
  74         struct amdgpu_device *adev = ring->adev;
  75
  76         return RREG32(mmUVD_RBC_RB_WPTR);
  77 }
  78
  79 /**
  80  * uvd_v4_2_ring_set_wptr - set write pointer
  81  *
  82  * @ring: amdgpu_ring pointer
  83  *
  84  * Commits the write pointer to the hardware
  85  */
  86 static void uvd_v4_2_ring_set_wptr(struct amdgpu_ring *ring)
  87 {
  88         struct amdgpu_device *adev = ring->adev;
  89
  90         WREG32(mmUVD_RBC_RB_WPTR, lower_32_bits(ring->wptr));
  91 }
  92
  93 static int uvd_v4_2_early_init(void *handle)
  94 {
  95         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
  96         adev->uvd.num_uvd_inst = 1;
  97
  98         uvd_v4_2_set_ring_funcs(adev);
  99         uvd_v4_2_set_irq_funcs(adev);
 100
 101         return 0;
 102 }
 103
 104 static int uvd_v4_2_sw_init(void *handle)
 105 {
 106         struct amdgpu_ring *ring;
 107         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 108         int r;
 109
 110         /* UVD TRAP */
 111         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 124, &adev->uvd.inst->irq);
 112         if (r)
 113                 return r;
 114
 115         r = amdgpu_uvd_sw_init(adev);
 116         if (r)
 117                 return r;
 118
 119         ring = &adev->uvd.inst->ring;
 120         sprintf(ring->name, "uvd");
 121         r = amdgpu_ring_init(adev, ring, 512, &adev->uvd.inst->irq, 0,
 122                              AMDGPU_RING_PRIO_DEFAULT);
 123         if (r)
 124                 return r;
 125
 126         r = amdgpu_uvd_resume(adev);
 127         if (r)
 128                 return r;
 129
 130         r = amdgpu_uvd_entity_init(adev);
 131
 132         return r;
 133 }
 134
 135 static int uvd_v4_2_sw_fini(void *handle)
 136 {
 137         int r;
 138         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 139
 140         r = amdgpu_uvd_suspend(adev);
 141         if (r)
 142                 return r;
 143
 144         return amdgpu_uvd_sw_fini(adev);
 145 }
 146
 147 static void uvd_v4_2_enable_mgcg(struct amdgpu_device *adev,
 148                                  bool enable);
 149 /**
 150  * uvd_v4_2_hw_init - start and test UVD block
 151  *
 152  * @adev: amdgpu_device pointer
 153  *
 154  * Initialize the hardware, boot up the VCPU and do some testing
 155  */
 156 static int uvd_v4_2_hw_init(void *handle)
 157 {
 158         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 159         struct amdgpu_ring *ring = &adev->uvd.inst->ring;
 160         uint32_t tmp;
 161         int r;
 162
 163         uvd_v4_2_enable_mgcg(adev, true);
 164         amdgpu_asic_set_uvd_clocks(adev, 10000, 10000);
 165
 166         r = amdgpu_ring_test_helper(ring);
 167         if (r)
 168                 goto done;
 169
 170         r = amdgpu_ring_alloc(ring, 10);
 171         if (r) {
 172                 DRM_ERROR("amdgpu: ring failed to lock UVD ring (%d).\n", r);
 173                 goto done;
 174         }
 175
 176         tmp = PACKET0(mmUVD_SEMA_WAIT_FAULT_TIMEOUT_CNTL, 0);
 177         amdgpu_ring_write(ring, tmp);
 178         amdgpu_ring_write(ring, 0xFFFFF);
 179
 180         tmp = PACKET0(mmUVD_SEMA_WAIT_INCOMPLETE_TIMEOUT_CNTL, 0);
 181         amdgpu_ring_write(ring, tmp);
 182         amdgpu_ring_write(ring, 0xFFFFF);
 183
 184         tmp = PACKET0(mmUVD_SEMA_SIGNAL_INCOMPLETE_TIMEOUT_CNTL, 0);
 185         amdgpu_ring_write(ring, tmp);
 186         amdgpu_ring_write(ring, 0xFFFFF);
 187
 188         /* Clear timeout status bits */
 189         amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_TIMEOUT_STATUS, 0));
 190         amdgpu_ring_write(ring, 0x8);
 191
 192         amdgpu_ring_write(ring, PACKET0(mmUVD_SEMA_CNTL, 0));
 193         amdgpu_ring_write(ring, 3);
 194
 195         amdgpu_ring_commit(ring);
 196
 197 done:
 198         if (!r)
 199                 DRM_INFO("UVD initialized successfully.\n");
 200
 201         return r;
 202 }
 203
 204 /**
 205  * uvd_v4_2_hw_fini - stop the hardware block
 206  *
 207  * @adev: amdgpu_device pointer
 208  *
 209  * Stop the UVD block, mark ring as not ready any more
 210  */
 211 static int uvd_v4_2_hw_fini(void *handle)
 212 {
 213         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 214
 215         if (RREG32(mmUVD_STATUS) != 0)
 216                 uvd_v4_2_stop(adev);
 217
 218         return 0;
 219 }
 220
 221 static int uvd_v4_2_suspend(void *handle)
 222 {
 223         int r;
 224         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 225
 226         r = uvd_v4_2_hw_fini(adev);
 227         if (r)
 228                 return r;
 229
 230         return amdgpu_uvd_suspend(adev);
 231 }
 232
 233 static int uvd_v4_2_resume(void *handle)
 234 {
 235         int r;
 236         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 237
 238         r = amdgpu_uvd_resume(adev);
 239         if (r)
 240                 return r;
 241
 242         return uvd_v4_2_hw_init(adev);
 243 }
 244
 245 /**
 246  * uvd_v4_2_start - start UVD block
 247  *
 248  * @adev: amdgpu_device pointer
 249  *
 250  * Setup and start the UVD block
 251  */
 252 static int uvd_v4_2_start(struct amdgpu_device *adev)
 253 {
 254         struct amdgpu_ring *ring = &adev->uvd.inst->ring;
 255         uint32_t rb_bufsz;
 256         int i, j, r;
 257         u32 tmp;
 258         /* disable byte swapping */
 259         u32 lmi_swap_cntl = 0;
 260         u32 mp_swap_cntl = 0;
 261
 262         /* set uvd busy */
 263         WREG32_P(mmUVD_STATUS, 1<<2, ~(1<<2));
 264
 265         uvd_v4_2_set_dcm(adev, true);
 266         WREG32(mmUVD_CGC_GATE, 0);
 267
 268         /* take UVD block out of reset */
 269         WREG32_P(mmSRBM_SOFT_RESET, 0, ~SRBM_SOFT_RESET__SOFT_RESET_UVD_MASK);
 270         mdelay(5);
 271
 272         /* enable VCPU clock */
 273         WREG32(mmUVD_VCPU_CNTL,  1 << 9);
 274
 275         /* disable interupt */
 276         WREG32_P(mmUVD_MASTINT_EN, 0, ~(1 << 1));
 277
 278 #ifdef __BIG_ENDIAN
 279         /* swap (8 in 32) RB and IB */
 280         lmi_swap_cntl = 0xa;
 281         mp_swap_cntl = 0;
 282 #endif
 283         WREG32(mmUVD_LMI_SWAP_CNTL, lmi_swap_cntl);
 284         WREG32(mmUVD_MP_SWAP_CNTL, mp_swap_cntl);
 285         /* initialize UVD memory controller */
 286         WREG32(mmUVD_LMI_CTRL, 0x203108);
 287
 288         tmp = RREG32(mmUVD_MPC_CNTL);
 289         WREG32(mmUVD_MPC_CNTL, tmp | 0x10);
 290
 291         WREG32(mmUVD_MPC_SET_MUXA0, 0x40c2040);
 292         WREG32(mmUVD_MPC_SET_MUXA1, 0x0);
 293         WREG32(mmUVD_MPC_SET_MUXB0, 0x40c2040);
 294         WREG32(mmUVD_MPC_SET_MUXB1, 0x0);
 295         WREG32(mmUVD_MPC_SET_ALU, 0);
 296         WREG32(mmUVD_MPC_SET_MUX, 0x88);
 297
 298         uvd_v4_2_mc_resume(adev);
 299
 300         tmp = RREG32_UVD_CTX(ixUVD_LMI_CACHE_CTRL);
 301         WREG32_UVD_CTX(ixUVD_LMI_CACHE_CTRL, tmp & (~0x10));
 302
 303         /* enable UMC */
 304         WREG32_P(mmUVD_LMI_CTRL2, 0, ~(1 << 8));
 305
 306         WREG32_P(mmUVD_SOFT_RESET, 0, ~UVD_SOFT_RESET__LMI_SOFT_RESET_MASK);
 307
 308         WREG32_P(mmUVD_SOFT_RESET, 0, ~UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK);
 309
 310         WREG32_P(mmUVD_SOFT_RESET, 0, ~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
 311
 312         mdelay(10);
 313
 314         for (i = 0; i < 10; ++i) {
 315                 uint32_t status;
 316                 for (j = 0; j < 100; ++j) {
 317                         status = RREG32(mmUVD_STATUS);
 318                         if (status & 2)
 319                                 break;
 320                         mdelay(10);
 321                 }
 322                 r = 0;
 323                 if (status & 2)
 324                         break;
 325
 326                 DRM_ERROR("UVD not responding, trying to reset the VCPU!!!\n");
 327                 WREG32_P(mmUVD_SOFT_RESET, UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK,
 328                                 ~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
 329                 mdelay(10);
 330                 WREG32_P(mmUVD_SOFT_RESET, 0, ~UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK);
 331                 mdelay(10);
 332                 r = -1;
 333         }
 334
 335         if (r) {
 336                 DRM_ERROR("UVD not responding, giving up!!!\n");
 337                 return r;
 338         }
 339
 340         /* enable interupt */
 341         WREG32_P(mmUVD_MASTINT_EN, 3<<1, ~(3 << 1));
 342
 343         WREG32_P(mmUVD_STATUS, 0, ~(1<<2));
 344
 345         /* force RBC into idle state */
 346         WREG32(mmUVD_RBC_RB_CNTL, 0x11010101);
 347
 348         /* Set the write pointer delay */
 349         WREG32(mmUVD_RBC_RB_WPTR_CNTL, 0);
 350
 351         /* programm the 4GB memory segment for rptr and ring buffer */
 352         WREG32(mmUVD_LMI_EXT40_ADDR, upper_32_bits(ring->gpu_addr) |
 353                                    (0x7 << 16) | (0x1 << 31));
 354
 355         /* Initialize the ring buffer's read and write pointers */
 356         WREG32(mmUVD_RBC_RB_RPTR, 0x0);
 357
 358         ring->wptr = RREG32(mmUVD_RBC_RB_RPTR);
 359         WREG32(mmUVD_RBC_RB_WPTR, lower_32_bits(ring->wptr));
 360
 361         /* set the ring address */
 362         WREG32(mmUVD_RBC_RB_BASE, ring->gpu_addr);
 363
 364         /* Set ring buffer size */
 365         rb_bufsz = order_base_2(ring->ring_size);
 366         rb_bufsz = (0x1 << 8) | rb_bufsz;
 367         WREG32_P(mmUVD_RBC_RB_CNTL, rb_bufsz, ~0x11f1f);
 368
 369         return 0;
 370 }
 371
 372 /**
 373  * uvd_v4_2_stop - stop UVD block
 374  *
 375  * @adev: amdgpu_device pointer
 376  *
 377  * stop the UVD block
 378  */
 379 static void uvd_v4_2_stop(struct amdgpu_device *adev)
 380 {
 381         uint32_t i, j;
 382         uint32_t status;
 383
 384         WREG32(mmUVD_RBC_RB_CNTL, 0x11010101);
 385
 386         for (i = 0; i < 10; ++i) {
 387                 for (j = 0; j < 100; ++j) {
 388                         status = RREG32(mmUVD_STATUS);
 389                         if (status & 2)
 390                                 break;
 391                         mdelay(1);
 392                 }
 393                 if (status & 2)
 394                         break;
 395         }
 396
 397         for (i = 0; i < 10; ++i) {
 398                 for (j = 0; j < 100; ++j) {
 399                         status = RREG32(mmUVD_LMI_STATUS);
 400                         if (status & 0xf)
 401                                 break;
 402                         mdelay(1);
 403                 }
 404                 if (status & 0xf)
 405                         break;
 406         }
 407
 408         /* Stall UMC and register bus before resetting VCPU */
 409         WREG32_P(mmUVD_LMI_CTRL2, 1 << 8, ~(1 << 8));
 410
 411         for (i = 0; i < 10; ++i) {
 412                 for (j = 0; j < 100; ++j) {
 413                         status = RREG32(mmUVD_LMI_STATUS);
 414                         if (status & 0x240)
 415                                 break;
 416                         mdelay(1);
 417                 }
 418                 if (status & 0x240)
 419                         break;
 420         }
 421
 422         WREG32_P(0x3D49, 0, ~(1 << 2));
 423
 424         WREG32_P(mmUVD_VCPU_CNTL, 0, ~(1 << 9));
 425
 426         /* put LMI, VCPU, RBC etc... into reset */
 427         WREG32(mmUVD_SOFT_RESET, UVD_SOFT_RESET__LMI_SOFT_RESET_MASK |
 428                 UVD_SOFT_RESET__VCPU_SOFT_RESET_MASK |
 429                 UVD_SOFT_RESET__LMI_UMC_SOFT_RESET_MASK);
 430
 431         WREG32(mmUVD_STATUS, 0);
 432
 433         uvd_v4_2_set_dcm(adev, false);
 434 }
 435
 436 /**
 437  * uvd_v4_2_ring_emit_fence - emit an fence & trap command
 438  *
 439  * @ring: amdgpu_ring pointer
 440  * @fence: fence to emit
 441  *
 442  * Write a fence and a trap command to the ring.
 443  */
 444 static void uvd_v4_2_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
 445                                      unsigned flags)
 446 {
 447         WARN_ON(flags & AMDGPU_FENCE_FLAG_64BIT);
 448
 449         amdgpu_ring_write(ring, PACKET0(mmUVD_CONTEXT_ID, 0));
 450         amdgpu_ring_write(ring, seq);
 451         amdgpu_ring_write(ring, PACKET0(mmUVD_GPCOM_VCPU_DATA0, 0));
 452         amdgpu_ring_write(ring, addr & 0xffffffff);
 453         amdgpu_ring_write(ring, PACKET0(mmUVD_GPCOM_VCPU_DATA1, 0));
 454         amdgpu_ring_write(ring, upper_32_bits(addr) & 0xff);
 455         amdgpu_ring_write(ring, PACKET0(mmUVD_GPCOM_VCPU_CMD, 0));
 456         amdgpu_ring_write(ring, 0);
 457
 458         amdgpu_ring_write(ring, PACKET0(mmUVD_GPCOM_VCPU_DATA0, 0));
 459         amdgpu_ring_write(ring, 0);
 460         amdgpu_ring_write(ring, PACKET0(mmUVD_GPCOM_VCPU_DATA1, 0));
 461         amdgpu_ring_write(ring, 0);
 462         amdgpu_ring_write(ring, PACKET0(mmUVD_GPCOM_VCPU_CMD, 0));
 463         amdgpu_ring_write(ring, 2);
 464 }
 465
 466 /**
 467  * uvd_v4_2_ring_test_ring - register write test
 468  *
 469  * @ring: amdgpu_ring pointer
 470  *
 471  * Test if we can successfully write to the context register
 472  */
 473 static int uvd_v4_2_ring_test_ring(struct amdgpu_ring *ring)
 474 {
 475         struct amdgpu_device *adev = ring->adev;
 476         uint32_t tmp = 0;
 477         unsigned i;
 478         int r;
 479
 480         WREG32(mmUVD_CONTEXT_ID, 0xCAFEDEAD);
 481         r = amdgpu_ring_alloc(ring, 3);
 482         if (r)
 483                 return r;
 484
 485         amdgpu_ring_write(ring, PACKET0(mmUVD_CONTEXT_ID, 0));
 486         amdgpu_ring_write(ring, 0xDEADBEEF);
 487         amdgpu_ring_commit(ring);
 488         for (i = 0; i < adev->usec_timeout; i++) {
 489                 tmp = RREG32(mmUVD_CONTEXT_ID);
 490                 if (tmp == 0xDEADBEEF)
 491                         break;
 492                 udelay(1);
 493         }
 494
 495         if (i >= adev->usec_timeout)
 496                 r = -ETIMEDOUT;
 497
 498         return r;
 499 }
 500
 501 /**
 502  * uvd_v4_2_ring_emit_ib - execute indirect buffer
 503  *
 504  * @ring: amdgpu_ring pointer
 505  * @ib: indirect buffer to execute
 506  *
 507  * Write ring commands to execute the indirect buffer
 508  */
 509 static void uvd_v4_2_ring_emit_ib(struct amdgpu_ring *ring,
 510                                   struct amdgpu_job *job,
 511                                   struct amdgpu_ib *ib,
 512                                   uint32_t flags)
 513 {
 514         amdgpu_ring_write(ring, PACKET0(mmUVD_RBC_IB_BASE, 0));
 515         amdgpu_ring_write(ring, ib->gpu_addr);
 516         amdgpu_ring_write(ring, PACKET0(mmUVD_RBC_IB_SIZE, 0));
 517         amdgpu_ring_write(ring, ib->length_dw);
 518 }
 519
 520 static void uvd_v4_2_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
 521 {
 522         int i;
 523
 524         WARN_ON(ring->wptr % 2 || count % 2);
 525
 526         for (i = 0; i < count / 2; i++) {
 527                 amdgpu_ring_write(ring, PACKET0(mmUVD_NO_OP, 0));
 528                 amdgpu_ring_write(ring, 0);
 529         }
 530 }
 531
 532 /**
 533  * uvd_v4_2_mc_resume - memory controller programming
 534  *
 535  * @adev: amdgpu_device pointer
 536  *
 537  * Let the UVD memory controller know it's offsets
 538  */
 539 static void uvd_v4_2_mc_resume(struct amdgpu_device *adev)
 540 {
 541         uint64_t addr;
 542         uint32_t size;
 543
 544         /* programm the VCPU memory controller bits 0-27 */
 545         addr = (adev->uvd.inst->gpu_addr + AMDGPU_UVD_FIRMWARE_OFFSET) >> 3;
 546         size = AMDGPU_UVD_FIRMWARE_SIZE(adev) >> 3;
 547         WREG32(mmUVD_VCPU_CACHE_OFFSET0, addr);
 548         WREG32(mmUVD_VCPU_CACHE_SIZE0, size);
 549
 550         addr += size;
 551         size = AMDGPU_UVD_HEAP_SIZE >> 3;
 552         WREG32(mmUVD_VCPU_CACHE_OFFSET1, addr);
 553         WREG32(mmUVD_VCPU_CACHE_SIZE1, size);
 554
 555         addr += size;
 556         size = (AMDGPU_UVD_STACK_SIZE +
 557                (AMDGPU_UVD_SESSION_SIZE * adev->uvd.max_handles)) >> 3;
 558         WREG32(mmUVD_VCPU_CACHE_OFFSET2, addr);
 559         WREG32(mmUVD_VCPU_CACHE_SIZE2, size);
 560
 561         /* bits 28-31 */
 562         addr = (adev->uvd.inst->gpu_addr >> 28) & 0xF;
 563         WREG32(mmUVD_LMI_ADDR_EXT, (addr << 12) | (addr << 0));
 564
 565         /* bits 32-39 */
 566         addr = (adev->uvd.inst->gpu_addr >> 32) & 0xFF;
 567         WREG32(mmUVD_LMI_EXT40_ADDR, addr | (0x9 << 16) | (0x1 << 31));
 568
 569         WREG32(mmUVD_UDEC_ADDR_CONFIG, adev->gfx.config.gb_addr_config);
 570         WREG32(mmUVD_UDEC_DB_ADDR_CONFIG, adev->gfx.config.gb_addr_config);
 571         WREG32(mmUVD_UDEC_DBW_ADDR_CONFIG, adev->gfx.config.gb_addr_config);
 572 }
 573
 574 static void uvd_v4_2_enable_mgcg(struct amdgpu_device *adev,
 575                                  bool enable)
 576 {
 577         u32 orig, data;
 578
 579         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_UVD_MGCG)) {
 580                 data = RREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL);
 581                 data |= 0xfff;
 582                 WREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL, data);
 583
 584                 orig = data = RREG32(mmUVD_CGC_CTRL);
 585                 data |= UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
 586                 if (orig != data)
 587                         WREG32(mmUVD_CGC_CTRL, data);
 588         } else {
 589                 data = RREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL);
 590                 data &= ~0xfff;
 591                 WREG32_UVD_CTX(ixUVD_CGC_MEM_CTRL, data);
 592
 593                 orig = data = RREG32(mmUVD_CGC_CTRL);
 594                 data &= ~UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK;
 595                 if (orig != data)
 596                         WREG32(mmUVD_CGC_CTRL, data);
 597         }
 598 }
 599
 600 static void uvd_v4_2_set_dcm(struct amdgpu_device *adev,
 601                              bool sw_mode)
 602 {
 603         u32 tmp, tmp2;
 604
 605         WREG32_FIELD(UVD_CGC_GATE, REGS, 0);
 606
 607         tmp = RREG32(mmUVD_CGC_CTRL);
 608         tmp &= ~(UVD_CGC_CTRL__CLK_OFF_DELAY_MASK | UVD_CGC_CTRL__CLK_GATE_DLY_TIMER_MASK);
 609         tmp |= UVD_CGC_CTRL__DYN_CLOCK_MODE_MASK |
 610                 (1 << UVD_CGC_CTRL__CLK_GATE_DLY_TIMER__SHIFT) |
 611                 (4 << UVD_CGC_CTRL__CLK_OFF_DELAY__SHIFT);
 612
 613         if (sw_mode) {
 614                 tmp &= ~0x7ffff800;
 615                 tmp2 = UVD_CGC_CTRL2__DYN_OCLK_RAMP_EN_MASK |
 616                         UVD_CGC_CTRL2__DYN_RCLK_RAMP_EN_MASK |
 617                         (7 << UVD_CGC_CTRL2__GATER_DIV_ID__SHIFT);
 618         } else {
 619                 tmp |= 0x7ffff800;
 620                 tmp2 = 0;
 621         }
 622
 623         WREG32(mmUVD_CGC_CTRL, tmp);
 624         WREG32_UVD_CTX(ixUVD_CGC_CTRL2, tmp2);
 625 }
 626
 627 static bool uvd_v4_2_is_idle(void *handle)
 628 {
 629         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 630
 631         return !(RREG32(mmSRBM_STATUS) & SRBM_STATUS__UVD_BUSY_MASK);
 632 }
 633
 634 static int uvd_v4_2_wait_for_idle(void *handle)
 635 {
 636         unsigned i;
 637         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 638
 639         for (i = 0; i < adev->usec_timeout; i++) {
 640                 if (!(RREG32(mmSRBM_STATUS) & SRBM_STATUS__UVD_BUSY_MASK))
 641                         return 0;
 642         }
 643         return -ETIMEDOUT;
 644 }
 645
 646 static int uvd_v4_2_soft_reset(void *handle)
 647 {
 648         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 649
 650         uvd_v4_2_stop(adev);
 651
 652         WREG32_P(mmSRBM_SOFT_RESET, SRBM_SOFT_RESET__SOFT_RESET_UVD_MASK,
 653                         ~SRBM_SOFT_RESET__SOFT_RESET_UVD_MASK);
 654         mdelay(5);
 655
 656         return uvd_v4_2_start(adev);
 657 }
 658
 659 static int uvd_v4_2_set_interrupt_state(struct amdgpu_device *adev,
 660                                         struct amdgpu_irq_src *source,
 661                                         unsigned type,
 662                                         enum amdgpu_interrupt_state state)
 663 {
 664         // TODO
 665         return 0;
 666 }
 667
 668 static int uvd_v4_2_process_interrupt(struct amdgpu_device *adev,
 669                                       struct amdgpu_irq_src *source,
 670                                       struct amdgpu_iv_entry *entry)
 671 {
 672         DRM_DEBUG("IH: UVD TRAP\n");
 673         amdgpu_fence_process(&adev->uvd.inst->ring);
 674         return 0;
 675 }
 676
 677 static int uvd_v4_2_set_clockgating_state(void *handle,
 678                                           enum amd_clockgating_state state)
 679 {
 680         return 0;
 681 }
 682
 683 static int uvd_v4_2_set_powergating_state(void *handle,
 684                                           enum amd_powergating_state state)
 685 {
 686         /* This doesn't actually powergate the UVD block.
 687          * That's done in the dpm code via the SMC.  This
 688          * just re-inits the block as necessary.  The actual
 689          * gating still happens in the dpm code.  We should
 690          * revisit this when there is a cleaner line between
 691          * the smc and the hw blocks
 692          */
 693         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 694
 695         if (state == AMD_PG_STATE_GATE) {
 696                 uvd_v4_2_stop(adev);
 697                 if (adev->pg_flags & AMD_PG_SUPPORT_UVD && !adev->pm.dpm_enabled) {
 698                         if (!(RREG32_SMC(ixCURRENT_PG_STATUS) &
 699                                 CURRENT_PG_STATUS__UVD_PG_STATUS_MASK)) {
 700                                 WREG32(mmUVD_PGFSM_CONFIG, (UVD_PGFSM_CONFIG__UVD_PGFSM_FSM_ADDR_MASK   |
 701                                                         UVD_PGFSM_CONFIG__UVD_PGFSM_POWER_DOWN_MASK |
 702                                                         UVD_PGFSM_CONFIG__UVD_PGFSM_P1_SELECT_MASK));
 703                                 mdelay(20);
 704                         }
 705                 }
 706                 return 0;
 707         } else {
 708                 if (adev->pg_flags & AMD_PG_SUPPORT_UVD && !adev->pm.dpm_enabled) {
 709                         if (RREG32_SMC(ixCURRENT_PG_STATUS) &
 710                                 CURRENT_PG_STATUS__UVD_PG_STATUS_MASK) {
 711                                 WREG32(mmUVD_PGFSM_CONFIG, (UVD_PGFSM_CONFIG__UVD_PGFSM_FSM_ADDR_MASK   |
 712                                                 UVD_PGFSM_CONFIG__UVD_PGFSM_POWER_UP_MASK |
 713                                                 UVD_PGFSM_CONFIG__UVD_PGFSM_P1_SELECT_MASK));
 714                                 mdelay(30);
 715                         }
 716                 }
 717                 return uvd_v4_2_start(adev);
 718         }
 719 }
 720
 721 static const struct amd_ip_funcs uvd_v4_2_ip_funcs = {
 722         .name = "uvd_v4_2",
 723         .early_init = uvd_v4_2_early_init,
 724         .late_init = NULL,
 725         .sw_init = uvd_v4_2_sw_init,
 726         .sw_fini = uvd_v4_2_sw_fini,
 727         .hw_init = uvd_v4_2_hw_init,
 728         .hw_fini = uvd_v4_2_hw_fini,
 729         .suspend = uvd_v4_2_suspend,
 730         .resume = uvd_v4_2_resume,
 731         .is_idle = uvd_v4_2_is_idle,
 732         .wait_for_idle = uvd_v4_2_wait_for_idle,
 733         .soft_reset = uvd_v4_2_soft_reset,
 734         .set_clockgating_state = uvd_v4_2_set_clockgating_state,
 735         .set_powergating_state = uvd_v4_2_set_powergating_state,
 736 };
 737
 738 static const struct amdgpu_ring_funcs uvd_v4_2_ring_funcs = {
 739         .type = AMDGPU_RING_TYPE_UVD,
 740         .align_mask = 0xf,
 741         .support_64bit_ptrs = false,
 742         .no_user_fence = true,
 743         .get_rptr = uvd_v4_2_ring_get_rptr,
 744         .get_wptr = uvd_v4_2_ring_get_wptr,
 745         .set_wptr = uvd_v4_2_ring_set_wptr,
 746         .parse_cs = amdgpu_uvd_ring_parse_cs,
 747         .emit_frame_size =
 748                 14, /* uvd_v4_2_ring_emit_fence  x1 no user fence */
 749         .emit_ib_size = 4, /* uvd_v4_2_ring_emit_ib */
 750         .emit_ib = uvd_v4_2_ring_emit_ib,
 751         .emit_fence = uvd_v4_2_ring_emit_fence,
 752         .test_ring = uvd_v4_2_ring_test_ring,
 753         .test_ib = amdgpu_uvd_ring_test_ib,
 754         .insert_nop = uvd_v4_2_ring_insert_nop,
 755         .pad_ib = amdgpu_ring_generic_pad_ib,
 756         .begin_use = amdgpu_uvd_ring_begin_use,
 757         .end_use = amdgpu_uvd_ring_end_use,
 758 };
 759
 760 static void uvd_v4_2_set_ring_funcs(struct amdgpu_device *adev)
 761 {
 762         adev->uvd.inst->ring.funcs = &uvd_v4_2_ring_funcs;
 763 }
 764
 765 static const struct amdgpu_irq_src_funcs uvd_v4_2_irq_funcs = {
 766         .set = uvd_v4_2_set_interrupt_state,
 767         .process = uvd_v4_2_process_interrupt,
 768 };
 769
 770 static void uvd_v4_2_set_irq_funcs(struct amdgpu_device *adev)
 771 {
 772         adev->uvd.inst->irq.num_types = 1;
 773         adev->uvd.inst->irq.funcs = &uvd_v4_2_irq_funcs;
 774 }
 775
 776 const struct amdgpu_ip_block_version uvd_v4_2_ip_block =
 777 {
 778                 .type = AMD_IP_BLOCK_TYPE_UVD,
 779                 .major = 4,
 780                 .minor = 2,
 781                 .rev = 0,
 782                 .funcs = &uvd_v4_2_ip_funcs,
 783 };