drivers/gpu/drm/amd/amdgpu/cik_sdma.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: Alex Deucher
  23  */
  24
  25 #include <linux/firmware.h>
  26 #include <linux/module.h>
  27
  28 #include "amdgpu.h"
  29 #include "amdgpu_ucode.h"
  30 #include "amdgpu_trace.h"
  31 #include "cikd.h"
  32 #include "cik.h"
  33
  34 #include "bif/bif_4_1_d.h"
  35 #include "bif/bif_4_1_sh_mask.h"
  36
  37 #include "gca/gfx_7_2_d.h"
  38 #include "gca/gfx_7_2_enum.h"
  39 #include "gca/gfx_7_2_sh_mask.h"
  40
  41 #include "gmc/gmc_7_1_d.h"
  42 #include "gmc/gmc_7_1_sh_mask.h"
  43
  44 #include "oss/oss_2_0_d.h"
  45 #include "oss/oss_2_0_sh_mask.h"
  46
  47 static const u32 sdma_offsets[SDMA_MAX_INSTANCE] =
  48 {
  49         SDMA0_REGISTER_OFFSET,
  50         SDMA1_REGISTER_OFFSET
  51 };
  52
  53 static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev);
  54 static void cik_sdma_set_irq_funcs(struct amdgpu_device *adev);
  55 static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev);
  56 static void cik_sdma_set_vm_pte_funcs(struct amdgpu_device *adev);
  57 static int cik_sdma_soft_reset(struct amdgpu_ip_block *ip_block);
  58
  59 MODULE_FIRMWARE("amdgpu/bonaire_sdma.bin");
  60 MODULE_FIRMWARE("amdgpu/bonaire_sdma1.bin");
  61 MODULE_FIRMWARE("amdgpu/hawaii_sdma.bin");
  62 MODULE_FIRMWARE("amdgpu/hawaii_sdma1.bin");
  63 MODULE_FIRMWARE("amdgpu/kaveri_sdma.bin");
  64 MODULE_FIRMWARE("amdgpu/kaveri_sdma1.bin");
  65 MODULE_FIRMWARE("amdgpu/kabini_sdma.bin");
  66 MODULE_FIRMWARE("amdgpu/kabini_sdma1.bin");
  67 MODULE_FIRMWARE("amdgpu/mullins_sdma.bin");
  68 MODULE_FIRMWARE("amdgpu/mullins_sdma1.bin");
  69
  70 u32 amdgpu_cik_gpu_check_soft_reset(struct amdgpu_device *adev);
  71
  72
  73 static void cik_sdma_free_microcode(struct amdgpu_device *adev)
  74 {
  75         int i;
  76
  77         for (i = 0; i < adev->sdma.num_instances; i++)
  78                 amdgpu_ucode_release(&adev->sdma.instance[i].fw);
  79 }
  80
  81 /*
  82  * sDMA - System DMA
  83  * Starting with CIK, the GPU has new asynchronous
  84  * DMA engines.  These engines are used for compute
  85  * and gfx.  There are two DMA engines (SDMA0, SDMA1)
  86  * and each one supports 1 ring buffer used for gfx
  87  * and 2 queues used for compute.
  88  *
  89  * The programming model is very similar to the CP
  90  * (ring buffer, IBs, etc.), but sDMA has it's own
  91  * packet format that is different from the PM4 format
  92  * used by the CP. sDMA supports copying data, writing
  93  * embedded data, solid fills, and a number of other
  94  * things.  It also has support for tiling/detiling of
  95  * buffers.
  96  */
  97
  98 /**
  99  * cik_sdma_init_microcode - load ucode images from disk
 100  *
 101  * @adev: amdgpu_device pointer
 102  *
 103  * Use the firmware interface to load the ucode images into
 104  * the driver (not loaded into hw).
 105  * Returns 0 on success, error on failure.
 106  */
 107 static int cik_sdma_init_microcode(struct amdgpu_device *adev)
 108 {
 109         const char *chip_name;
 110         int err = 0, i;
 111
 112         DRM_DEBUG("\n");
 113
 114         switch (adev->asic_type) {
 115         case CHIP_BONAIRE:
 116                 chip_name = "bonaire";
 117                 break;
 118         case CHIP_HAWAII:
 119                 chip_name = "hawaii";
 120                 break;
 121         case CHIP_KAVERI:
 122                 chip_name = "kaveri";
 123                 break;
 124         case CHIP_KABINI:
 125                 chip_name = "kabini";
 126                 break;
 127         case CHIP_MULLINS:
 128                 chip_name = "mullins";
 129                 break;
 130         default: BUG();
 131         }
 132
 133         for (i = 0; i < adev->sdma.num_instances; i++) {
 134                 if (i == 0)
 135                         err = amdgpu_ucode_request(adev, &adev->sdma.instance[i].fw,
 136                                                    "amdgpu/%s_sdma.bin", chip_name);
 137                 else
 138                         err = amdgpu_ucode_request(adev, &adev->sdma.instance[i].fw,
 139                                                    "amdgpu/%s_sdma1.bin", chip_name);
 140                 if (err)
 141                         goto out;
 142         }
 143 out:
 144         if (err) {
 145                 pr_err("cik_sdma: Failed to load firmware \"%s_sdma%s.bin\"\n",
 146                        chip_name, i == 0 ? "" : "1");
 147                 for (i = 0; i < adev->sdma.num_instances; i++)
 148                         amdgpu_ucode_release(&adev->sdma.instance[i].fw);
 149         }
 150         return err;
 151 }
 152
 153 /**
 154  * cik_sdma_ring_get_rptr - get the current read pointer
 155  *
 156  * @ring: amdgpu ring pointer
 157  *
 158  * Get the current rptr from the hardware (CIK+).
 159  */
 160 static uint64_t cik_sdma_ring_get_rptr(struct amdgpu_ring *ring)
 161 {
 162         u32 rptr;
 163
 164         rptr = *ring->rptr_cpu_addr;
 165
 166         return (rptr & 0x3fffc) >> 2;
 167 }
 168
 169 /**
 170  * cik_sdma_ring_get_wptr - get the current write pointer
 171  *
 172  * @ring: amdgpu ring pointer
 173  *
 174  * Get the current wptr from the hardware (CIK+).
 175  */
 176 static uint64_t cik_sdma_ring_get_wptr(struct amdgpu_ring *ring)
 177 {
 178         struct amdgpu_device *adev = ring->adev;
 179
 180         return (RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[ring->me]) & 0x3fffc) >> 2;
 181 }
 182
 183 /**
 184  * cik_sdma_ring_set_wptr - commit the write pointer
 185  *
 186  * @ring: amdgpu ring pointer
 187  *
 188  * Write the wptr back to the hardware (CIK+).
 189  */
 190 static void cik_sdma_ring_set_wptr(struct amdgpu_ring *ring)
 191 {
 192         struct amdgpu_device *adev = ring->adev;
 193
 194         WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[ring->me],
 195                (ring->wptr << 2) & 0x3fffc);
 196 }
 197
 198 static void cik_sdma_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
 199 {
 200         struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
 201         int i;
 202
 203         for (i = 0; i < count; i++)
 204                 if (sdma && sdma->burst_nop && (i == 0))
 205                         amdgpu_ring_write(ring, ring->funcs->nop |
 206                                           SDMA_NOP_COUNT(count - 1));
 207                 else
 208                         amdgpu_ring_write(ring, ring->funcs->nop);
 209 }
 210
 211 /**
 212  * cik_sdma_ring_emit_ib - Schedule an IB on the DMA engine
 213  *
 214  * @ring: amdgpu ring pointer
 215  * @job: job to retrive vmid from
 216  * @ib: IB object to schedule
 217  * @flags: unused
 218  *
 219  * Schedule an IB in the DMA ring (CIK).
 220  */
 221 static void cik_sdma_ring_emit_ib(struct amdgpu_ring *ring,
 222                                   struct amdgpu_job *job,
 223                                   struct amdgpu_ib *ib,
 224                                   uint32_t flags)
 225 {
 226         unsigned vmid = AMDGPU_JOB_GET_VMID(job);
 227         u32 extra_bits = vmid & 0xf;
 228
 229         /* IB packet must end on a 8 DW boundary */
 230         cik_sdma_ring_insert_nop(ring, (4 - lower_32_bits(ring->wptr)) & 7);
 231
 232         amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_INDIRECT_BUFFER, 0, extra_bits));
 233         amdgpu_ring_write(ring, ib->gpu_addr & 0xffffffe0); /* base must be 32 byte aligned */
 234         amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xffffffff);
 235         amdgpu_ring_write(ring, ib->length_dw);
 236
 237 }
 238
 239 /**
 240  * cik_sdma_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
 241  *
 242  * @ring: amdgpu ring pointer
 243  *
 244  * Emit an hdp flush packet on the requested DMA ring.
 245  */
 246 static void cik_sdma_ring_emit_hdp_flush(struct amdgpu_ring *ring)
 247 {
 248         u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(1) |
 249                           SDMA_POLL_REG_MEM_EXTRA_FUNC(3)); /* == */
 250         u32 ref_and_mask;
 251
 252         if (ring->me == 0)
 253                 ref_and_mask = GPU_HDP_FLUSH_DONE__SDMA0_MASK;
 254         else
 255                 ref_and_mask = GPU_HDP_FLUSH_DONE__SDMA1_MASK;
 256
 257         amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits));
 258         amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_DONE << 2);
 259         amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_REQ << 2);
 260         amdgpu_ring_write(ring, ref_and_mask); /* reference */
 261         amdgpu_ring_write(ring, ref_and_mask); /* mask */
 262         amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */
 263 }
 264
 265 /**
 266  * cik_sdma_ring_emit_fence - emit a fence on the DMA ring
 267  *
 268  * @ring: amdgpu ring pointer
 269  * @addr: address
 270  * @seq: sequence number
 271  * @flags: fence related flags
 272  *
 273  * Add a DMA fence packet to the ring to write
 274  * the fence seq number and DMA trap packet to generate
 275  * an interrupt if needed (CIK).
 276  */
 277 static void cik_sdma_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
 278                                      unsigned flags)
 279 {
 280         bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
 281         /* write the fence */
 282         amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_FENCE, 0, 0));
 283         amdgpu_ring_write(ring, lower_32_bits(addr));
 284         amdgpu_ring_write(ring, upper_32_bits(addr));
 285         amdgpu_ring_write(ring, lower_32_bits(seq));
 286
 287         /* optionally write high bits as well */
 288         if (write64bit) {
 289                 addr += 4;
 290                 amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_FENCE, 0, 0));
 291                 amdgpu_ring_write(ring, lower_32_bits(addr));
 292                 amdgpu_ring_write(ring, upper_32_bits(addr));
 293                 amdgpu_ring_write(ring, upper_32_bits(seq));
 294         }
 295
 296         /* generate an interrupt */
 297         amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_TRAP, 0, 0));
 298 }
 299
 300 /**
 301  * cik_sdma_gfx_stop - stop the gfx async dma engines
 302  *
 303  * @adev: amdgpu_device pointer
 304  *
 305  * Stop the gfx async dma ring buffers (CIK).
 306  */
 307 static void cik_sdma_gfx_stop(struct amdgpu_device *adev)
 308 {
 309         u32 rb_cntl;
 310         int i;
 311
 312         for (i = 0; i < adev->sdma.num_instances; i++) {
 313                 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]);
 314                 rb_cntl &= ~SDMA0_GFX_RB_CNTL__RB_ENABLE_MASK;
 315                 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
 316                 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], 0);
 317         }
 318 }
 319
 320 /**
 321  * cik_sdma_rlc_stop - stop the compute async dma engines
 322  *
 323  * @adev: amdgpu_device pointer
 324  *
 325  * Stop the compute async dma queues (CIK).
 326  */
 327 static void cik_sdma_rlc_stop(struct amdgpu_device *adev)
 328 {
 329         /* XXX todo */
 330 }
 331
 332 /**
 333  * cik_ctx_switch_enable - stop the async dma engines context switch
 334  *
 335  * @adev: amdgpu_device pointer
 336  * @enable: enable/disable the DMA MEs context switch.
 337  *
 338  * Halt or unhalt the async dma engines context switch (VI).
 339  */
 340 static void cik_ctx_switch_enable(struct amdgpu_device *adev, bool enable)
 341 {
 342         u32 f32_cntl, phase_quantum = 0;
 343         int i;
 344
 345         if (amdgpu_sdma_phase_quantum) {
 346                 unsigned value = amdgpu_sdma_phase_quantum;
 347                 unsigned unit = 0;
 348
 349                 while (value > (SDMA0_PHASE0_QUANTUM__VALUE_MASK >>
 350                                 SDMA0_PHASE0_QUANTUM__VALUE__SHIFT)) {
 351                         value = (value + 1) >> 1;
 352                         unit++;
 353                 }
 354                 if (unit > (SDMA0_PHASE0_QUANTUM__UNIT_MASK >>
 355                             SDMA0_PHASE0_QUANTUM__UNIT__SHIFT)) {
 356                         value = (SDMA0_PHASE0_QUANTUM__VALUE_MASK >>
 357                                  SDMA0_PHASE0_QUANTUM__VALUE__SHIFT);
 358                         unit = (SDMA0_PHASE0_QUANTUM__UNIT_MASK >>
 359                                 SDMA0_PHASE0_QUANTUM__UNIT__SHIFT);
 360                         WARN_ONCE(1,
 361                         "clamping sdma_phase_quantum to %uK clock cycles\n",
 362                                   value << unit);
 363                 }
 364                 phase_quantum =
 365                         value << SDMA0_PHASE0_QUANTUM__VALUE__SHIFT |
 366                         unit  << SDMA0_PHASE0_QUANTUM__UNIT__SHIFT;
 367         }
 368
 369         for (i = 0; i < adev->sdma.num_instances; i++) {
 370                 f32_cntl = RREG32(mmSDMA0_CNTL + sdma_offsets[i]);
 371                 if (enable) {
 372                         f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL,
 373                                         AUTO_CTXSW_ENABLE, 1);
 374                         if (amdgpu_sdma_phase_quantum) {
 375                                 WREG32(mmSDMA0_PHASE0_QUANTUM + sdma_offsets[i],
 376                                        phase_quantum);
 377                                 WREG32(mmSDMA0_PHASE1_QUANTUM + sdma_offsets[i],
 378                                        phase_quantum);
 379                         }
 380                 } else {
 381                         f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_CNTL,
 382                                         AUTO_CTXSW_ENABLE, 0);
 383                 }
 384
 385                 WREG32(mmSDMA0_CNTL + sdma_offsets[i], f32_cntl);
 386         }
 387 }
 388
 389 /**
 390  * cik_sdma_enable - stop the async dma engines
 391  *
 392  * @adev: amdgpu_device pointer
 393  * @enable: enable/disable the DMA MEs.
 394  *
 395  * Halt or unhalt the async dma engines (CIK).
 396  */
 397 static void cik_sdma_enable(struct amdgpu_device *adev, bool enable)
 398 {
 399         u32 me_cntl;
 400         int i;
 401
 402         if (!enable) {
 403                 cik_sdma_gfx_stop(adev);
 404                 cik_sdma_rlc_stop(adev);
 405         }
 406
 407         for (i = 0; i < adev->sdma.num_instances; i++) {
 408                 me_cntl = RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]);
 409                 if (enable)
 410                         me_cntl &= ~SDMA0_F32_CNTL__HALT_MASK;
 411                 else
 412                         me_cntl |= SDMA0_F32_CNTL__HALT_MASK;
 413                 WREG32(mmSDMA0_F32_CNTL + sdma_offsets[i], me_cntl);
 414         }
 415 }
 416
 417 /**
 418  * cik_sdma_gfx_resume - setup and start the async dma engines
 419  *
 420  * @adev: amdgpu_device pointer
 421  *
 422  * Set up the gfx DMA ring buffers and enable them (CIK).
 423  * Returns 0 for success, error for failure.
 424  */
 425 static int cik_sdma_gfx_resume(struct amdgpu_device *adev)
 426 {
 427         struct amdgpu_ring *ring;
 428         u32 rb_cntl, ib_cntl;
 429         u32 rb_bufsz;
 430         int i, j, r;
 431
 432         for (i = 0; i < adev->sdma.num_instances; i++) {
 433                 ring = &adev->sdma.instance[i].ring;
 434
 435                 mutex_lock(&adev->srbm_mutex);
 436                 for (j = 0; j < 16; j++) {
 437                         cik_srbm_select(adev, 0, 0, 0, j);
 438                         /* SDMA GFX */
 439                         WREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i], 0);
 440                         WREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i], 0);
 441                         /* XXX SDMA RLC - todo */
 442                 }
 443                 cik_srbm_select(adev, 0, 0, 0, 0);
 444                 mutex_unlock(&adev->srbm_mutex);
 445
 446                 WREG32(mmSDMA0_TILING_CONFIG + sdma_offsets[i],
 447                        adev->gfx.config.gb_addr_config & 0x70);
 448
 449                 WREG32(mmSDMA0_SEM_INCOMPLETE_TIMER_CNTL + sdma_offsets[i], 0);
 450                 WREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i], 0);
 451
 452                 /* Set ring buffer size in dwords */
 453                 rb_bufsz = order_base_2(ring->ring_size / 4);
 454                 rb_cntl = rb_bufsz << 1;
 455 #ifdef __BIG_ENDIAN
 456                 rb_cntl |= SDMA0_GFX_RB_CNTL__RB_SWAP_ENABLE_MASK |
 457                         SDMA0_GFX_RB_CNTL__RPTR_WRITEBACK_SWAP_ENABLE_MASK;
 458 #endif
 459                 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
 460
 461                 /* Initialize the ring buffer's read and write pointers */
 462                 WREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i], 0);
 463                 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], 0);
 464                 WREG32(mmSDMA0_GFX_IB_RPTR + sdma_offsets[i], 0);
 465                 WREG32(mmSDMA0_GFX_IB_OFFSET + sdma_offsets[i], 0);
 466
 467                 /* set the wb address whether it's enabled or not */
 468                 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i],
 469                        upper_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFF);
 470                 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i],
 471                        ((ring->rptr_gpu_addr) & 0xFFFFFFFC));
 472
 473                 rb_cntl |= SDMA0_GFX_RB_CNTL__RPTR_WRITEBACK_ENABLE_MASK;
 474
 475                 WREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i], ring->gpu_addr >> 8);
 476                 WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40);
 477
 478                 ring->wptr = 0;
 479                 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], ring->wptr << 2);
 480
 481                 /* enable DMA RB */
 482                 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i],
 483                        rb_cntl | SDMA0_GFX_RB_CNTL__RB_ENABLE_MASK);
 484
 485                 ib_cntl = SDMA0_GFX_IB_CNTL__IB_ENABLE_MASK;
 486 #ifdef __BIG_ENDIAN
 487                 ib_cntl |= SDMA0_GFX_IB_CNTL__IB_SWAP_ENABLE_MASK;
 488 #endif
 489                 /* enable DMA IBs */
 490                 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl);
 491         }
 492
 493         cik_sdma_enable(adev, true);
 494
 495         for (i = 0; i < adev->sdma.num_instances; i++) {
 496                 ring = &adev->sdma.instance[i].ring;
 497                 r = amdgpu_ring_test_helper(ring);
 498                 if (r)
 499                         return r;
 500         }
 501
 502         return 0;
 503 }
 504
 505 /**
 506  * cik_sdma_rlc_resume - setup and start the async dma engines
 507  *
 508  * @adev: amdgpu_device pointer
 509  *
 510  * Set up the compute DMA queues and enable them (CIK).
 511  * Returns 0 for success, error for failure.
 512  */
 513 static int cik_sdma_rlc_resume(struct amdgpu_device *adev)
 514 {
 515         /* XXX todo */
 516         return 0;
 517 }
 518
 519 /**
 520  * cik_sdma_load_microcode - load the sDMA ME ucode
 521  *
 522  * @adev: amdgpu_device pointer
 523  *
 524  * Loads the sDMA0/1 ucode.
 525  * Returns 0 for success, -EINVAL if the ucode is not available.
 526  */
 527 static int cik_sdma_load_microcode(struct amdgpu_device *adev)
 528 {
 529         const struct sdma_firmware_header_v1_0 *hdr;
 530         const __le32 *fw_data;
 531         u32 fw_size;
 532         int i, j;
 533
 534         /* halt the MEs */
 535         cik_sdma_enable(adev, false);
 536
 537         for (i = 0; i < adev->sdma.num_instances; i++) {
 538                 if (!adev->sdma.instance[i].fw)
 539                         return -EINVAL;
 540                 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
 541                 amdgpu_ucode_print_sdma_hdr(&hdr->header);
 542                 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 543                 adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version);
 544                 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version);
 545                 if (adev->sdma.instance[i].feature_version >= 20)
 546                         adev->sdma.instance[i].burst_nop = true;
 547                 fw_data = (const __le32 *)
 548                         (adev->sdma.instance[i].fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 549                 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], 0);
 550                 for (j = 0; j < fw_size; j++)
 551                         WREG32(mmSDMA0_UCODE_DATA + sdma_offsets[i], le32_to_cpup(fw_data++));
 552                 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], adev->sdma.instance[i].fw_version);
 553         }
 554
 555         return 0;
 556 }
 557
 558 /**
 559  * cik_sdma_start - setup and start the async dma engines
 560  *
 561  * @adev: amdgpu_device pointer
 562  *
 563  * Set up the DMA engines and enable them (CIK).
 564  * Returns 0 for success, error for failure.
 565  */
 566 static int cik_sdma_start(struct amdgpu_device *adev)
 567 {
 568         int r;
 569
 570         r = cik_sdma_load_microcode(adev);
 571         if (r)
 572                 return r;
 573
 574         /* halt the engine before programing */
 575         cik_sdma_enable(adev, false);
 576         /* enable sdma ring preemption */
 577         cik_ctx_switch_enable(adev, true);
 578
 579         /* start the gfx rings and rlc compute queues */
 580         r = cik_sdma_gfx_resume(adev);
 581         if (r)
 582                 return r;
 583         r = cik_sdma_rlc_resume(adev);
 584         if (r)
 585                 return r;
 586
 587         return 0;
 588 }
 589
 590 /**
 591  * cik_sdma_ring_test_ring - simple async dma engine test
 592  *
 593  * @ring: amdgpu_ring structure holding ring information
 594  *
 595  * Test the DMA engine by writing using it to write an
 596  * value to memory. (CIK).
 597  * Returns 0 for success, error for failure.
 598  */
 599 static int cik_sdma_ring_test_ring(struct amdgpu_ring *ring)
 600 {
 601         struct amdgpu_device *adev = ring->adev;
 602         unsigned i;
 603         unsigned index;
 604         int r;
 605         u32 tmp;
 606         u64 gpu_addr;
 607
 608         r = amdgpu_device_wb_get(adev, &index);
 609         if (r)
 610                 return r;
 611
 612         gpu_addr = adev->wb.gpu_addr + (index * 4);
 613         tmp = 0xCAFEDEAD;
 614         adev->wb.wb[index] = cpu_to_le32(tmp);
 615
 616         r = amdgpu_ring_alloc(ring, 5);
 617         if (r)
 618                 goto error_free_wb;
 619
 620         amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0));
 621         amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
 622         amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
 623         amdgpu_ring_write(ring, 1); /* number of DWs to follow */
 624         amdgpu_ring_write(ring, 0xDEADBEEF);
 625         amdgpu_ring_commit(ring);
 626
 627         for (i = 0; i < adev->usec_timeout; i++) {
 628                 tmp = le32_to_cpu(adev->wb.wb[index]);
 629                 if (tmp == 0xDEADBEEF)
 630                         break;
 631                 udelay(1);
 632         }
 633
 634         if (i >= adev->usec_timeout)
 635                 r = -ETIMEDOUT;
 636
 637 error_free_wb:
 638         amdgpu_device_wb_free(adev, index);
 639         return r;
 640 }
 641
 642 /**
 643  * cik_sdma_ring_test_ib - test an IB on the DMA engine
 644  *
 645  * @ring: amdgpu_ring structure holding ring information
 646  * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT
 647  *
 648  * Test a simple IB in the DMA ring (CIK).
 649  * Returns 0 on success, error on failure.
 650  */
 651 static int cik_sdma_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 652 {
 653         struct amdgpu_device *adev = ring->adev;
 654         struct amdgpu_ib ib;
 655         struct dma_fence *f = NULL;
 656         unsigned index;
 657         u32 tmp = 0;
 658         u64 gpu_addr;
 659         long r;
 660
 661         r = amdgpu_device_wb_get(adev, &index);
 662         if (r)
 663                 return r;
 664
 665         gpu_addr = adev->wb.gpu_addr + (index * 4);
 666         tmp = 0xCAFEDEAD;
 667         adev->wb.wb[index] = cpu_to_le32(tmp);
 668         memset(&ib, 0, sizeof(ib));
 669         r = amdgpu_ib_get(adev, NULL, 256,
 670                                         AMDGPU_IB_POOL_DIRECT, &ib);
 671         if (r)
 672                 goto err0;
 673
 674         ib.ptr[0] = SDMA_PACKET(SDMA_OPCODE_WRITE,
 675                                 SDMA_WRITE_SUB_OPCODE_LINEAR, 0);
 676         ib.ptr[1] = lower_32_bits(gpu_addr);
 677         ib.ptr[2] = upper_32_bits(gpu_addr);
 678         ib.ptr[3] = 1;
 679         ib.ptr[4] = 0xDEADBEEF;
 680         ib.length_dw = 5;
 681         r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f);
 682         if (r)
 683                 goto err1;
 684
 685         r = dma_fence_wait_timeout(f, false, timeout);
 686         if (r == 0) {
 687                 r = -ETIMEDOUT;
 688                 goto err1;
 689         } else if (r < 0) {
 690                 goto err1;
 691         }
 692         tmp = le32_to_cpu(adev->wb.wb[index]);
 693         if (tmp == 0xDEADBEEF)
 694                 r = 0;
 695         else
 696                 r = -EINVAL;
 697
 698 err1:
 699         amdgpu_ib_free(adev, &ib, NULL);
 700         dma_fence_put(f);
 701 err0:
 702         amdgpu_device_wb_free(adev, index);
 703         return r;
 704 }
 705
 706 /**
 707  * cik_sdma_vm_copy_pte - update PTEs by copying them from the GART
 708  *
 709  * @ib: indirect buffer to fill with commands
 710  * @pe: addr of the page entry
 711  * @src: src addr to copy from
 712  * @count: number of page entries to update
 713  *
 714  * Update PTEs by copying them from the GART using sDMA (CIK).
 715  */
 716 static void cik_sdma_vm_copy_pte(struct amdgpu_ib *ib,
 717                                  uint64_t pe, uint64_t src,
 718                                  unsigned count)
 719 {
 720         unsigned bytes = count * 8;
 721
 722         ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_COPY,
 723                 SDMA_WRITE_SUB_OPCODE_LINEAR, 0);
 724         ib->ptr[ib->length_dw++] = bytes;
 725         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
 726         ib->ptr[ib->length_dw++] = lower_32_bits(src);
 727         ib->ptr[ib->length_dw++] = upper_32_bits(src);
 728         ib->ptr[ib->length_dw++] = lower_32_bits(pe);
 729         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
 730 }
 731
 732 /**
 733  * cik_sdma_vm_write_pte - update PTEs by writing them manually
 734  *
 735  * @ib: indirect buffer to fill with commands
 736  * @pe: addr of the page entry
 737  * @value: dst addr to write into pe
 738  * @count: number of page entries to update
 739  * @incr: increase next addr by incr bytes
 740  *
 741  * Update PTEs by writing them manually using sDMA (CIK).
 742  */
 743 static void cik_sdma_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe,
 744                                   uint64_t value, unsigned count,
 745                                   uint32_t incr)
 746 {
 747         unsigned ndw = count * 2;
 748
 749         ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_WRITE,
 750                 SDMA_WRITE_SUB_OPCODE_LINEAR, 0);
 751         ib->ptr[ib->length_dw++] = lower_32_bits(pe);
 752         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
 753         ib->ptr[ib->length_dw++] = ndw;
 754         for (; ndw > 0; ndw -= 2) {
 755                 ib->ptr[ib->length_dw++] = lower_32_bits(value);
 756                 ib->ptr[ib->length_dw++] = upper_32_bits(value);
 757                 value += incr;
 758         }
 759 }
 760
 761 /**
 762  * cik_sdma_vm_set_pte_pde - update the page tables using sDMA
 763  *
 764  * @ib: indirect buffer to fill with commands
 765  * @pe: addr of the page entry
 766  * @addr: dst addr to write into pe
 767  * @count: number of page entries to update
 768  * @incr: increase next addr by incr bytes
 769  * @flags: access flags
 770  *
 771  * Update the page tables using sDMA (CIK).
 772  */
 773 static void cik_sdma_vm_set_pte_pde(struct amdgpu_ib *ib, uint64_t pe,
 774                                     uint64_t addr, unsigned count,
 775                                     uint32_t incr, uint64_t flags)
 776 {
 777         /* for physically contiguous pages (vram) */
 778         ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_GENERATE_PTE_PDE, 0, 0);
 779         ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */
 780         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
 781         ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */
 782         ib->ptr[ib->length_dw++] = upper_32_bits(flags);
 783         ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */
 784         ib->ptr[ib->length_dw++] = upper_32_bits(addr);
 785         ib->ptr[ib->length_dw++] = incr; /* increment size */
 786         ib->ptr[ib->length_dw++] = 0;
 787         ib->ptr[ib->length_dw++] = count; /* number of entries */
 788 }
 789
 790 /**
 791  * cik_sdma_ring_pad_ib - pad the IB to the required number of dw
 792  *
 793  * @ring: amdgpu_ring structure holding ring information
 794  * @ib: indirect buffer to fill with padding
 795  *
 796  */
 797 static void cik_sdma_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
 798 {
 799         struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
 800         u32 pad_count;
 801         int i;
 802
 803         pad_count = (-ib->length_dw) & 7;
 804         for (i = 0; i < pad_count; i++)
 805                 if (sdma && sdma->burst_nop && (i == 0))
 806                         ib->ptr[ib->length_dw++] =
 807                                         SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0) |
 808                                         SDMA_NOP_COUNT(pad_count - 1);
 809                 else
 810                         ib->ptr[ib->length_dw++] =
 811                                         SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0);
 812 }
 813
 814 /**
 815  * cik_sdma_ring_emit_pipeline_sync - sync the pipeline
 816  *
 817  * @ring: amdgpu_ring pointer
 818  *
 819  * Make sure all previous operations are completed (CIK).
 820  */
 821 static void cik_sdma_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
 822 {
 823         uint32_t seq = ring->fence_drv.sync_seq;
 824         uint64_t addr = ring->fence_drv.gpu_addr;
 825
 826         /* wait for idle */
 827         amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0,
 828                                             SDMA_POLL_REG_MEM_EXTRA_OP(0) |
 829                                             SDMA_POLL_REG_MEM_EXTRA_FUNC(3) | /* equal */
 830                                             SDMA_POLL_REG_MEM_EXTRA_M));
 831         amdgpu_ring_write(ring, addr & 0xfffffffc);
 832         amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
 833         amdgpu_ring_write(ring, seq); /* reference */
 834         amdgpu_ring_write(ring, 0xffffffff); /* mask */
 835         amdgpu_ring_write(ring, (0xfff << 16) | 4); /* retry count, poll interval */
 836 }
 837
 838 /**
 839  * cik_sdma_ring_emit_vm_flush - cik vm flush using sDMA
 840  *
 841  * @ring: amdgpu_ring pointer
 842  * @vmid: vmid number to use
 843  * @pd_addr: address
 844  *
 845  * Update the page table base and flush the VM TLB
 846  * using sDMA (CIK).
 847  */
 848 static void cik_sdma_ring_emit_vm_flush(struct amdgpu_ring *ring,
 849                                         unsigned vmid, uint64_t pd_addr)
 850 {
 851         u32 extra_bits = (SDMA_POLL_REG_MEM_EXTRA_OP(0) |
 852                           SDMA_POLL_REG_MEM_EXTRA_FUNC(0)); /* always */
 853
 854         amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
 855
 856         amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_POLL_REG_MEM, 0, extra_bits));
 857         amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2);
 858         amdgpu_ring_write(ring, 0);
 859         amdgpu_ring_write(ring, 0); /* reference */
 860         amdgpu_ring_write(ring, 0); /* mask */
 861         amdgpu_ring_write(ring, (0xfff << 16) | 10); /* retry count, poll interval */
 862 }
 863
 864 static void cik_sdma_ring_emit_wreg(struct amdgpu_ring *ring,
 865                                     uint32_t reg, uint32_t val)
 866 {
 867         amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SRBM_WRITE, 0, 0xf000));
 868         amdgpu_ring_write(ring, reg);
 869         amdgpu_ring_write(ring, val);
 870 }
 871
 872 static void cik_enable_sdma_mgcg(struct amdgpu_device *adev,
 873                                  bool enable)
 874 {
 875         u32 orig, data;
 876
 877         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_MGCG)) {
 878                 WREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET, 0x00000100);
 879                 WREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET, 0x00000100);
 880         } else {
 881                 orig = data = RREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET);
 882                 data |= 0xff000000;
 883                 if (data != orig)
 884                         WREG32(mmSDMA0_CLK_CTRL + SDMA0_REGISTER_OFFSET, data);
 885
 886                 orig = data = RREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET);
 887                 data |= 0xff000000;
 888                 if (data != orig)
 889                         WREG32(mmSDMA0_CLK_CTRL + SDMA1_REGISTER_OFFSET, data);
 890         }
 891 }
 892
 893 static void cik_enable_sdma_mgls(struct amdgpu_device *adev,
 894                                  bool enable)
 895 {
 896         u32 orig, data;
 897
 898         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_SDMA_LS)) {
 899                 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET);
 900                 data |= 0x100;
 901                 if (orig != data)
 902                         WREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET, data);
 903
 904                 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET);
 905                 data |= 0x100;
 906                 if (orig != data)
 907                         WREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET, data);
 908         } else {
 909                 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET);
 910                 data &= ~0x100;
 911                 if (orig != data)
 912                         WREG32(mmSDMA0_POWER_CNTL + SDMA0_REGISTER_OFFSET, data);
 913
 914                 orig = data = RREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET);
 915                 data &= ~0x100;
 916                 if (orig != data)
 917                         WREG32(mmSDMA0_POWER_CNTL + SDMA1_REGISTER_OFFSET, data);
 918         }
 919 }
 920
 921 static int cik_sdma_early_init(struct amdgpu_ip_block *ip_block)
 922 {
 923         struct amdgpu_device *adev = ip_block->adev;
 924         int r;
 925
 926         adev->sdma.num_instances = SDMA_MAX_INSTANCE;
 927
 928         r = cik_sdma_init_microcode(adev);
 929         if (r)
 930                 return r;
 931
 932         cik_sdma_set_ring_funcs(adev);
 933         cik_sdma_set_irq_funcs(adev);
 934         cik_sdma_set_buffer_funcs(adev);
 935         cik_sdma_set_vm_pte_funcs(adev);
 936
 937         return 0;
 938 }
 939
 940 static int cik_sdma_sw_init(struct amdgpu_ip_block *ip_block)
 941 {
 942         struct amdgpu_ring *ring;
 943         struct amdgpu_device *adev = ip_block->adev;
 944         int r, i;
 945
 946         /* SDMA trap event */
 947         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 224,
 948                               &adev->sdma.trap_irq);
 949         if (r)
 950                 return r;
 951
 952         /* SDMA Privileged inst */
 953         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 241,
 954                               &adev->sdma.illegal_inst_irq);
 955         if (r)
 956                 return r;
 957
 958         /* SDMA Privileged inst */
 959         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 247,
 960                               &adev->sdma.illegal_inst_irq);
 961         if (r)
 962                 return r;
 963
 964         for (i = 0; i < adev->sdma.num_instances; i++) {
 965                 ring = &adev->sdma.instance[i].ring;
 966                 ring->ring_obj = NULL;
 967                 sprintf(ring->name, "sdma%d", i);
 968                 r = amdgpu_ring_init(adev, ring, 1024,
 969                                      &adev->sdma.trap_irq,
 970                                      (i == 0) ? AMDGPU_SDMA_IRQ_INSTANCE0 :
 971                                      AMDGPU_SDMA_IRQ_INSTANCE1,
 972                                      AMDGPU_RING_PRIO_DEFAULT, NULL);
 973                 if (r)
 974                         return r;
 975         }
 976
 977         return r;
 978 }
 979
 980 static int cik_sdma_sw_fini(struct amdgpu_ip_block *ip_block)
 981 {
 982         struct amdgpu_device *adev = ip_block->adev;
 983         int i;
 984
 985         for (i = 0; i < adev->sdma.num_instances; i++)
 986                 amdgpu_ring_fini(&adev->sdma.instance[i].ring);
 987
 988         cik_sdma_free_microcode(adev);
 989         return 0;
 990 }
 991
 992 static int cik_sdma_hw_init(struct amdgpu_ip_block *ip_block)
 993 {
 994         int r;
 995         struct amdgpu_device *adev = ip_block->adev;
 996
 997         r = cik_sdma_start(adev);
 998         if (r)
 999                 return r;
1000
1001         return r;
1002 }
1003
1004 static int cik_sdma_hw_fini(struct amdgpu_ip_block *ip_block)
1005 {
1006         struct amdgpu_device *adev = ip_block->adev;
1007
1008         cik_ctx_switch_enable(adev, false);
1009         cik_sdma_enable(adev, false);
1010
1011         return 0;
1012 }
1013
1014 static int cik_sdma_suspend(struct amdgpu_ip_block *ip_block)
1015 {
1016         return cik_sdma_hw_fini(ip_block);
1017 }
1018
1019 static int cik_sdma_resume(struct amdgpu_ip_block *ip_block)
1020 {
1021         cik_sdma_soft_reset(ip_block);
1022
1023         return cik_sdma_hw_init(ip_block);
1024 }
1025
1026 static bool cik_sdma_is_idle(void *handle)
1027 {
1028         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1029         u32 tmp = RREG32(mmSRBM_STATUS2);
1030
1031         if (tmp & (SRBM_STATUS2__SDMA_BUSY_MASK |
1032                                 SRBM_STATUS2__SDMA1_BUSY_MASK))
1033             return false;
1034
1035         return true;
1036 }
1037
1038 static int cik_sdma_wait_for_idle(struct amdgpu_ip_block *ip_block)
1039 {
1040         unsigned i;
1041         u32 tmp;
1042         struct amdgpu_device *adev = ip_block->adev;
1043
1044         for (i = 0; i < adev->usec_timeout; i++) {
1045                 tmp = RREG32(mmSRBM_STATUS2) & (SRBM_STATUS2__SDMA_BUSY_MASK |
1046                                 SRBM_STATUS2__SDMA1_BUSY_MASK);
1047
1048                 if (!tmp)
1049                         return 0;
1050                 udelay(1);
1051         }
1052         return -ETIMEDOUT;
1053 }
1054
1055 static int cik_sdma_soft_reset(struct amdgpu_ip_block *ip_block)
1056 {
1057         u32 srbm_soft_reset = 0;
1058         struct amdgpu_device *adev = ip_block->adev;
1059         u32 tmp;
1060
1061         /* sdma0 */
1062         tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET);
1063         tmp |= SDMA0_F32_CNTL__HALT_MASK;
1064         WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp);
1065         srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK;
1066
1067         /* sdma1 */
1068         tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET);
1069         tmp |= SDMA0_F32_CNTL__HALT_MASK;
1070         WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp);
1071         srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK;
1072
1073         if (srbm_soft_reset) {
1074                 tmp = RREG32(mmSRBM_SOFT_RESET);
1075                 tmp |= srbm_soft_reset;
1076                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1077                 WREG32(mmSRBM_SOFT_RESET, tmp);
1078                 tmp = RREG32(mmSRBM_SOFT_RESET);
1079
1080                 udelay(50);
1081
1082                 tmp &= ~srbm_soft_reset;
1083                 WREG32(mmSRBM_SOFT_RESET, tmp);
1084                 tmp = RREG32(mmSRBM_SOFT_RESET);
1085
1086                 /* Wait a little for things to settle down */
1087                 udelay(50);
1088         }
1089
1090         return 0;
1091 }
1092
1093 static int cik_sdma_set_trap_irq_state(struct amdgpu_device *adev,
1094                                        struct amdgpu_irq_src *src,
1095                                        unsigned type,
1096                                        enum amdgpu_interrupt_state state)
1097 {
1098         u32 sdma_cntl;
1099
1100         switch (type) {
1101         case AMDGPU_SDMA_IRQ_INSTANCE0:
1102                 switch (state) {
1103                 case AMDGPU_IRQ_STATE_DISABLE:
1104                         sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1105                         sdma_cntl &= ~SDMA0_CNTL__TRAP_ENABLE_MASK;
1106                         WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1107                         break;
1108                 case AMDGPU_IRQ_STATE_ENABLE:
1109                         sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1110                         sdma_cntl |= SDMA0_CNTL__TRAP_ENABLE_MASK;
1111                         WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1112                         break;
1113                 default:
1114                         break;
1115                 }
1116                 break;
1117         case AMDGPU_SDMA_IRQ_INSTANCE1:
1118                 switch (state) {
1119                 case AMDGPU_IRQ_STATE_DISABLE:
1120                         sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1121                         sdma_cntl &= ~SDMA0_CNTL__TRAP_ENABLE_MASK;
1122                         WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1123                         break;
1124                 case AMDGPU_IRQ_STATE_ENABLE:
1125                         sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1126                         sdma_cntl |= SDMA0_CNTL__TRAP_ENABLE_MASK;
1127                         WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1128                         break;
1129                 default:
1130                         break;
1131                 }
1132                 break;
1133         default:
1134                 break;
1135         }
1136         return 0;
1137 }
1138
1139 static int cik_sdma_process_trap_irq(struct amdgpu_device *adev,
1140                                      struct amdgpu_irq_src *source,
1141                                      struct amdgpu_iv_entry *entry)
1142 {
1143         u8 instance_id, queue_id;
1144
1145         instance_id = (entry->ring_id & 0x3) >> 0;
1146         queue_id = (entry->ring_id & 0xc) >> 2;
1147         DRM_DEBUG("IH: SDMA trap\n");
1148         switch (instance_id) {
1149         case 0:
1150                 switch (queue_id) {
1151                 case 0:
1152                         amdgpu_fence_process(&adev->sdma.instance[0].ring);
1153                         break;
1154                 case 1:
1155                         /* XXX compute */
1156                         break;
1157                 case 2:
1158                         /* XXX compute */
1159                         break;
1160                 }
1161                 break;
1162         case 1:
1163                 switch (queue_id) {
1164                 case 0:
1165                         amdgpu_fence_process(&adev->sdma.instance[1].ring);
1166                         break;
1167                 case 1:
1168                         /* XXX compute */
1169                         break;
1170                 case 2:
1171                         /* XXX compute */
1172                         break;
1173                 }
1174                 break;
1175         }
1176
1177         return 0;
1178 }
1179
1180 static int cik_sdma_process_illegal_inst_irq(struct amdgpu_device *adev,
1181                                              struct amdgpu_irq_src *source,
1182                                              struct amdgpu_iv_entry *entry)
1183 {
1184         u8 instance_id;
1185
1186         DRM_ERROR("Illegal instruction in SDMA command stream\n");
1187         instance_id = (entry->ring_id & 0x3) >> 0;
1188         drm_sched_fault(&adev->sdma.instance[instance_id].ring.sched);
1189         return 0;
1190 }
1191
1192 static int cik_sdma_set_clockgating_state(void *handle,
1193                                           enum amd_clockgating_state state)
1194 {
1195         bool gate = false;
1196         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1197
1198         if (state == AMD_CG_STATE_GATE)
1199                 gate = true;
1200
1201         cik_enable_sdma_mgcg(adev, gate);
1202         cik_enable_sdma_mgls(adev, gate);
1203
1204         return 0;
1205 }
1206
1207 static int cik_sdma_set_powergating_state(void *handle,
1208                                           enum amd_powergating_state state)
1209 {
1210         return 0;
1211 }
1212
1213 static const struct amd_ip_funcs cik_sdma_ip_funcs = {
1214         .name = "cik_sdma",
1215         .early_init = cik_sdma_early_init,
1216         .sw_init = cik_sdma_sw_init,
1217         .sw_fini = cik_sdma_sw_fini,
1218         .hw_init = cik_sdma_hw_init,
1219         .hw_fini = cik_sdma_hw_fini,
1220         .suspend = cik_sdma_suspend,
1221         .resume = cik_sdma_resume,
1222         .is_idle = cik_sdma_is_idle,
1223         .wait_for_idle = cik_sdma_wait_for_idle,
1224         .soft_reset = cik_sdma_soft_reset,
1225         .set_clockgating_state = cik_sdma_set_clockgating_state,
1226         .set_powergating_state = cik_sdma_set_powergating_state,
1227 };
1228
1229 static const struct amdgpu_ring_funcs cik_sdma_ring_funcs = {
1230         .type = AMDGPU_RING_TYPE_SDMA,
1231         .align_mask = 0xf,
1232         .nop = SDMA_PACKET(SDMA_OPCODE_NOP, 0, 0),
1233         .support_64bit_ptrs = false,
1234         .get_rptr = cik_sdma_ring_get_rptr,
1235         .get_wptr = cik_sdma_ring_get_wptr,
1236         .set_wptr = cik_sdma_ring_set_wptr,
1237         .emit_frame_size =
1238                 6 + /* cik_sdma_ring_emit_hdp_flush */
1239                 3 + /* hdp invalidate */
1240                 6 + /* cik_sdma_ring_emit_pipeline_sync */
1241                 CIK_FLUSH_GPU_TLB_NUM_WREG * 3 + 6 + /* cik_sdma_ring_emit_vm_flush */
1242                 9 + 9 + 9, /* cik_sdma_ring_emit_fence x3 for user fence, vm fence */
1243         .emit_ib_size = 7 + 4, /* cik_sdma_ring_emit_ib */
1244         .emit_ib = cik_sdma_ring_emit_ib,
1245         .emit_fence = cik_sdma_ring_emit_fence,
1246         .emit_pipeline_sync = cik_sdma_ring_emit_pipeline_sync,
1247         .emit_vm_flush = cik_sdma_ring_emit_vm_flush,
1248         .emit_hdp_flush = cik_sdma_ring_emit_hdp_flush,
1249         .test_ring = cik_sdma_ring_test_ring,
1250         .test_ib = cik_sdma_ring_test_ib,
1251         .insert_nop = cik_sdma_ring_insert_nop,
1252         .pad_ib = cik_sdma_ring_pad_ib,
1253         .emit_wreg = cik_sdma_ring_emit_wreg,
1254 };
1255
1256 static void cik_sdma_set_ring_funcs(struct amdgpu_device *adev)
1257 {
1258         int i;
1259
1260         for (i = 0; i < adev->sdma.num_instances; i++) {
1261                 adev->sdma.instance[i].ring.funcs = &cik_sdma_ring_funcs;
1262                 adev->sdma.instance[i].ring.me = i;
1263         }
1264 }
1265
1266 static const struct amdgpu_irq_src_funcs cik_sdma_trap_irq_funcs = {
1267         .set = cik_sdma_set_trap_irq_state,
1268         .process = cik_sdma_process_trap_irq,
1269 };
1270
1271 static const struct amdgpu_irq_src_funcs cik_sdma_illegal_inst_irq_funcs = {
1272         .process = cik_sdma_process_illegal_inst_irq,
1273 };
1274
1275 static void cik_sdma_set_irq_funcs(struct amdgpu_device *adev)
1276 {
1277         adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST;
1278         adev->sdma.trap_irq.funcs = &cik_sdma_trap_irq_funcs;
1279         adev->sdma.illegal_inst_irq.funcs = &cik_sdma_illegal_inst_irq_funcs;
1280 }
1281
1282 /**
1283  * cik_sdma_emit_copy_buffer - copy buffer using the sDMA engine
1284  *
1285  * @ib: indirect buffer to copy to
1286  * @src_offset: src GPU address
1287  * @dst_offset: dst GPU address
1288  * @byte_count: number of bytes to xfer
1289  * @copy_flags: unused
1290  *
1291  * Copy GPU buffers using the DMA engine (CIK).
1292  * Used by the amdgpu ttm implementation to move pages if
1293  * registered as the asic copy callback.
1294  */
1295 static void cik_sdma_emit_copy_buffer(struct amdgpu_ib *ib,
1296                                       uint64_t src_offset,
1297                                       uint64_t dst_offset,
1298                                       uint32_t byte_count,
1299                                       uint32_t copy_flags)
1300 {
1301         ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_COPY, SDMA_COPY_SUB_OPCODE_LINEAR, 0);
1302         ib->ptr[ib->length_dw++] = byte_count;
1303         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1304         ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1305         ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1306         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1307         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1308 }
1309
1310 /**
1311  * cik_sdma_emit_fill_buffer - fill buffer using the sDMA engine
1312  *
1313  * @ib: indirect buffer to fill
1314  * @src_data: value to write to buffer
1315  * @dst_offset: dst GPU address
1316  * @byte_count: number of bytes to xfer
1317  *
1318  * Fill GPU buffers using the DMA engine (CIK).
1319  */
1320 static void cik_sdma_emit_fill_buffer(struct amdgpu_ib *ib,
1321                                       uint32_t src_data,
1322                                       uint64_t dst_offset,
1323                                       uint32_t byte_count)
1324 {
1325         ib->ptr[ib->length_dw++] = SDMA_PACKET(SDMA_OPCODE_CONSTANT_FILL, 0, 0);
1326         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1327         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1328         ib->ptr[ib->length_dw++] = src_data;
1329         ib->ptr[ib->length_dw++] = byte_count;
1330 }
1331
1332 static const struct amdgpu_buffer_funcs cik_sdma_buffer_funcs = {
1333         .copy_max_bytes = 0x1fffff,
1334         .copy_num_dw = 7,
1335         .emit_copy_buffer = cik_sdma_emit_copy_buffer,
1336
1337         .fill_max_bytes = 0x1fffff,
1338         .fill_num_dw = 5,
1339         .emit_fill_buffer = cik_sdma_emit_fill_buffer,
1340 };
1341
1342 static void cik_sdma_set_buffer_funcs(struct amdgpu_device *adev)
1343 {
1344         adev->mman.buffer_funcs = &cik_sdma_buffer_funcs;
1345         adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
1346 }
1347
1348 static const struct amdgpu_vm_pte_funcs cik_sdma_vm_pte_funcs = {
1349         .copy_pte_num_dw = 7,
1350         .copy_pte = cik_sdma_vm_copy_pte,
1351
1352         .write_pte = cik_sdma_vm_write_pte,
1353         .set_pte_pde = cik_sdma_vm_set_pte_pde,
1354 };
1355
1356 static void cik_sdma_set_vm_pte_funcs(struct amdgpu_device *adev)
1357 {
1358         unsigned i;
1359
1360         adev->vm_manager.vm_pte_funcs = &cik_sdma_vm_pte_funcs;
1361         for (i = 0; i < adev->sdma.num_instances; i++) {
1362                 adev->vm_manager.vm_pte_scheds[i] =
1363                         &adev->sdma.instance[i].ring.sched;
1364         }
1365         adev->vm_manager.vm_pte_num_scheds = adev->sdma.num_instances;
1366 }
1367
1368 const struct amdgpu_ip_block_version cik_sdma_ip_block =
1369 {
1370         .type = AMD_IP_BLOCK_TYPE_SDMA,
1371         .major = 2,
1372         .minor = 0,
1373         .rev = 0,
1374         .funcs = &cik_sdma_ip_funcs,
1375 };