drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c

   1 /*
   2  * Copyright 2014 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/delay.h>
  26 #include <linux/firmware.h>
  27 #include <linux/module.h>
  28
  29 #include "amdgpu.h"
  30 #include "amdgpu_ucode.h"
  31 #include "amdgpu_trace.h"
  32 #include "vi.h"
  33 #include "vid.h"
  34
  35 #include "oss/oss_2_4_d.h"
  36 #include "oss/oss_2_4_sh_mask.h"
  37
  38 #include "gmc/gmc_7_1_d.h"
  39 #include "gmc/gmc_7_1_sh_mask.h"
  40
  41 #include "gca/gfx_8_0_d.h"
  42 #include "gca/gfx_8_0_enum.h"
  43 #include "gca/gfx_8_0_sh_mask.h"
  44
  45 #include "bif/bif_5_0_d.h"
  46 #include "bif/bif_5_0_sh_mask.h"
  47
  48 #include "iceland_sdma_pkt_open.h"
  49
  50 #include "ivsrcid/ivsrcid_vislands30.h"
  51
  52 static void sdma_v2_4_set_ring_funcs(struct amdgpu_device *adev);
  53 static void sdma_v2_4_set_buffer_funcs(struct amdgpu_device *adev);
  54 static void sdma_v2_4_set_vm_pte_funcs(struct amdgpu_device *adev);
  55 static void sdma_v2_4_set_irq_funcs(struct amdgpu_device *adev);
  56
  57 MODULE_FIRMWARE("amdgpu/topaz_sdma.bin");
  58 MODULE_FIRMWARE("amdgpu/topaz_sdma1.bin");
  59
  60 static const u32 sdma_offsets[SDMA_MAX_INSTANCE] = {
  61         SDMA0_REGISTER_OFFSET,
  62         SDMA1_REGISTER_OFFSET
  63 };
  64
  65 static const u32 golden_settings_iceland_a11[] = {
  66         mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007,
  67         mmSDMA0_CLK_CTRL, 0xff000fff, 0x00000000,
  68         mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007,
  69         mmSDMA1_CLK_CTRL, 0xff000fff, 0x00000000,
  70 };
  71
  72 static const u32 iceland_mgcg_cgcg_init[] = {
  73         mmSDMA0_CLK_CTRL, 0xff000ff0, 0x00000100,
  74         mmSDMA1_CLK_CTRL, 0xff000ff0, 0x00000100
  75 };
  76
  77 /*
  78  * sDMA - System DMA
  79  * Starting with CIK, the GPU has new asynchronous
  80  * DMA engines.  These engines are used for compute
  81  * and gfx.  There are two DMA engines (SDMA0, SDMA1)
  82  * and each one supports 1 ring buffer used for gfx
  83  * and 2 queues used for compute.
  84  *
  85  * The programming model is very similar to the CP
  86  * (ring buffer, IBs, etc.), but sDMA has it's own
  87  * packet format that is different from the PM4 format
  88  * used by the CP. sDMA supports copying data, writing
  89  * embedded data, solid fills, and a number of other
  90  * things.  It also has support for tiling/detiling of
  91  * buffers.
  92  */
  93
  94 static void sdma_v2_4_init_golden_registers(struct amdgpu_device *adev)
  95 {
  96         switch (adev->asic_type) {
  97         case CHIP_TOPAZ:
  98                 amdgpu_device_program_register_sequence(adev,
  99                                                         iceland_mgcg_cgcg_init,
 100                                                         ARRAY_SIZE(iceland_mgcg_cgcg_init));
 101                 amdgpu_device_program_register_sequence(adev,
 102                                                         golden_settings_iceland_a11,
 103                                                         ARRAY_SIZE(golden_settings_iceland_a11));
 104                 break;
 105         default:
 106                 break;
 107         }
 108 }
 109
 110 static void sdma_v2_4_free_microcode(struct amdgpu_device *adev)
 111 {
 112         int i;
 113
 114         for (i = 0; i < adev->sdma.num_instances; i++)
 115                 amdgpu_ucode_release(&adev->sdma.instance[i].fw);
 116 }
 117
 118 /**
 119  * sdma_v2_4_init_microcode - load ucode images from disk
 120  *
 121  * @adev: amdgpu_device pointer
 122  *
 123  * Use the firmware interface to load the ucode images into
 124  * the driver (not loaded into hw).
 125  * Returns 0 on success, error on failure.
 126  */
 127 static int sdma_v2_4_init_microcode(struct amdgpu_device *adev)
 128 {
 129         const char *chip_name;
 130         char fw_name[30];
 131         int err = 0, i;
 132         struct amdgpu_firmware_info *info = NULL;
 133         const struct common_firmware_header *header = NULL;
 134         const struct sdma_firmware_header_v1_0 *hdr;
 135
 136         DRM_DEBUG("\n");
 137
 138         switch (adev->asic_type) {
 139         case CHIP_TOPAZ:
 140                 chip_name = "topaz";
 141                 break;
 142         default:
 143                 BUG();
 144         }
 145
 146         for (i = 0; i < adev->sdma.num_instances; i++) {
 147                 if (i == 0)
 148                         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name);
 149                 else
 150                         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma1.bin", chip_name);
 151                 err = amdgpu_ucode_request(adev, &adev->sdma.instance[i].fw, fw_name);
 152                 if (err)
 153                         goto out;
 154                 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
 155                 adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version);
 156                 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version);
 157                 if (adev->sdma.instance[i].feature_version >= 20)
 158                         adev->sdma.instance[i].burst_nop = true;
 159
 160                 if (adev->firmware.load_type == AMDGPU_FW_LOAD_SMU) {
 161                         info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i];
 162                         info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i;
 163                         info->fw = adev->sdma.instance[i].fw;
 164                         header = (const struct common_firmware_header *)info->fw->data;
 165                         adev->firmware.fw_size +=
 166                                 ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE);
 167                 }
 168         }
 169
 170 out:
 171         if (err) {
 172                 pr_err("sdma_v2_4: Failed to load firmware \"%s\"\n", fw_name);
 173                 for (i = 0; i < adev->sdma.num_instances; i++)
 174                         amdgpu_ucode_release(&adev->sdma.instance[i].fw);
 175         }
 176         return err;
 177 }
 178
 179 /**
 180  * sdma_v2_4_ring_get_rptr - get the current read pointer
 181  *
 182  * @ring: amdgpu ring pointer
 183  *
 184  * Get the current rptr from the hardware (VI+).
 185  */
 186 static uint64_t sdma_v2_4_ring_get_rptr(struct amdgpu_ring *ring)
 187 {
 188         /* XXX check if swapping is necessary on BE */
 189         return *ring->rptr_cpu_addr >> 2;
 190 }
 191
 192 /**
 193  * sdma_v2_4_ring_get_wptr - get the current write pointer
 194  *
 195  * @ring: amdgpu ring pointer
 196  *
 197  * Get the current wptr from the hardware (VI+).
 198  */
 199 static uint64_t sdma_v2_4_ring_get_wptr(struct amdgpu_ring *ring)
 200 {
 201         struct amdgpu_device *adev = ring->adev;
 202         u32 wptr = RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[ring->me]) >> 2;
 203
 204         return wptr;
 205 }
 206
 207 /**
 208  * sdma_v2_4_ring_set_wptr - commit the write pointer
 209  *
 210  * @ring: amdgpu ring pointer
 211  *
 212  * Write the wptr back to the hardware (VI+).
 213  */
 214 static void sdma_v2_4_ring_set_wptr(struct amdgpu_ring *ring)
 215 {
 216         struct amdgpu_device *adev = ring->adev;
 217
 218         WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[ring->me], ring->wptr << 2);
 219 }
 220
 221 static void sdma_v2_4_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
 222 {
 223         struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
 224         int i;
 225
 226         for (i = 0; i < count; i++)
 227                 if (sdma && sdma->burst_nop && (i == 0))
 228                         amdgpu_ring_write(ring, ring->funcs->nop |
 229                                 SDMA_PKT_NOP_HEADER_COUNT(count - 1));
 230                 else
 231                         amdgpu_ring_write(ring, ring->funcs->nop);
 232 }
 233
 234 /**
 235  * sdma_v2_4_ring_emit_ib - Schedule an IB on the DMA engine
 236  *
 237  * @ring: amdgpu ring pointer
 238  * @job: job to retrieve vmid from
 239  * @ib: IB object to schedule
 240  * @flags: unused
 241  *
 242  * Schedule an IB in the DMA ring (VI).
 243  */
 244 static void sdma_v2_4_ring_emit_ib(struct amdgpu_ring *ring,
 245                                    struct amdgpu_job *job,
 246                                    struct amdgpu_ib *ib,
 247                                    uint32_t flags)
 248 {
 249         unsigned vmid = AMDGPU_JOB_GET_VMID(job);
 250
 251         /* IB packet must end on a 8 DW boundary */
 252         sdma_v2_4_ring_insert_nop(ring, (2 - lower_32_bits(ring->wptr)) & 7);
 253
 254         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) |
 255                           SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf));
 256         /* base must be 32 byte aligned */
 257         amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0);
 258         amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
 259         amdgpu_ring_write(ring, ib->length_dw);
 260         amdgpu_ring_write(ring, 0);
 261         amdgpu_ring_write(ring, 0);
 262
 263 }
 264
 265 /**
 266  * sdma_v2_4_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
 267  *
 268  * @ring: amdgpu ring pointer
 269  *
 270  * Emit an hdp flush packet on the requested DMA ring.
 271  */
 272 static void sdma_v2_4_ring_emit_hdp_flush(struct amdgpu_ring *ring)
 273 {
 274         u32 ref_and_mask = 0;
 275
 276         if (ring->me == 0)
 277                 ref_and_mask = REG_SET_FIELD(ref_and_mask, GPU_HDP_FLUSH_DONE, SDMA0, 1);
 278         else
 279                 ref_and_mask = REG_SET_FIELD(ref_and_mask, GPU_HDP_FLUSH_DONE, SDMA1, 1);
 280
 281         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
 282                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) |
 283                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */
 284         amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_DONE << 2);
 285         amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_REQ << 2);
 286         amdgpu_ring_write(ring, ref_and_mask); /* reference */
 287         amdgpu_ring_write(ring, ref_and_mask); /* mask */
 288         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
 289                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
 290 }
 291
 292 /**
 293  * sdma_v2_4_ring_emit_fence - emit a fence on the DMA ring
 294  *
 295  * @ring: amdgpu ring pointer
 296  * @addr: address
 297  * @seq: sequence number
 298  * @flags: fence related flags
 299  *
 300  * Add a DMA fence packet to the ring to write
 301  * the fence seq number and DMA trap packet to generate
 302  * an interrupt if needed (VI).
 303  */
 304 static void sdma_v2_4_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
 305                                       unsigned flags)
 306 {
 307         bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
 308         /* write the fence */
 309         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE));
 310         amdgpu_ring_write(ring, lower_32_bits(addr));
 311         amdgpu_ring_write(ring, upper_32_bits(addr));
 312         amdgpu_ring_write(ring, lower_32_bits(seq));
 313
 314         /* optionally write high bits as well */
 315         if (write64bit) {
 316                 addr += 4;
 317                 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE));
 318                 amdgpu_ring_write(ring, lower_32_bits(addr));
 319                 amdgpu_ring_write(ring, upper_32_bits(addr));
 320                 amdgpu_ring_write(ring, upper_32_bits(seq));
 321         }
 322
 323         /* generate an interrupt */
 324         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP));
 325         amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0));
 326 }
 327
 328 /**
 329  * sdma_v2_4_gfx_stop - stop the gfx async dma engines
 330  *
 331  * @adev: amdgpu_device pointer
 332  *
 333  * Stop the gfx async dma ring buffers (VI).
 334  */
 335 static void sdma_v2_4_gfx_stop(struct amdgpu_device *adev)
 336 {
 337         u32 rb_cntl, ib_cntl;
 338         int i;
 339
 340         for (i = 0; i < adev->sdma.num_instances; i++) {
 341                 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]);
 342                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0);
 343                 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
 344                 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]);
 345                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0);
 346                 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl);
 347         }
 348 }
 349
 350 /**
 351  * sdma_v2_4_rlc_stop - stop the compute async dma engines
 352  *
 353  * @adev: amdgpu_device pointer
 354  *
 355  * Stop the compute async dma queues (VI).
 356  */
 357 static void sdma_v2_4_rlc_stop(struct amdgpu_device *adev)
 358 {
 359         /* XXX todo */
 360 }
 361
 362 /**
 363  * sdma_v2_4_enable - stop the async dma engines
 364  *
 365  * @adev: amdgpu_device pointer
 366  * @enable: enable/disable the DMA MEs.
 367  *
 368  * Halt or unhalt the async dma engines (VI).
 369  */
 370 static void sdma_v2_4_enable(struct amdgpu_device *adev, bool enable)
 371 {
 372         u32 f32_cntl;
 373         int i;
 374
 375         if (!enable) {
 376                 sdma_v2_4_gfx_stop(adev);
 377                 sdma_v2_4_rlc_stop(adev);
 378         }
 379
 380         for (i = 0; i < adev->sdma.num_instances; i++) {
 381                 f32_cntl = RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]);
 382                 if (enable)
 383                         f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 0);
 384                 else
 385                         f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 1);
 386                 WREG32(mmSDMA0_F32_CNTL + sdma_offsets[i], f32_cntl);
 387         }
 388 }
 389
 390 /**
 391  * sdma_v2_4_gfx_resume - setup and start the async dma engines
 392  *
 393  * @adev: amdgpu_device pointer
 394  *
 395  * Set up the gfx DMA ring buffers and enable them (VI).
 396  * Returns 0 for success, error for failure.
 397  */
 398 static int sdma_v2_4_gfx_resume(struct amdgpu_device *adev)
 399 {
 400         struct amdgpu_ring *ring;
 401         u32 rb_cntl, ib_cntl;
 402         u32 rb_bufsz;
 403         int i, j, r;
 404
 405         for (i = 0; i < adev->sdma.num_instances; i++) {
 406                 ring = &adev->sdma.instance[i].ring;
 407
 408                 mutex_lock(&adev->srbm_mutex);
 409                 for (j = 0; j < 16; j++) {
 410                         vi_srbm_select(adev, 0, 0, 0, j);
 411                         /* SDMA GFX */
 412                         WREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i], 0);
 413                         WREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i], 0);
 414                 }
 415                 vi_srbm_select(adev, 0, 0, 0, 0);
 416                 mutex_unlock(&adev->srbm_mutex);
 417
 418                 WREG32(mmSDMA0_TILING_CONFIG + sdma_offsets[i],
 419                        adev->gfx.config.gb_addr_config & 0x70);
 420
 421                 WREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i], 0);
 422
 423                 /* Set ring buffer size in dwords */
 424                 rb_bufsz = order_base_2(ring->ring_size / 4);
 425                 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]);
 426                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
 427 #ifdef __BIG_ENDIAN
 428                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);
 429                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL,
 430                                         RPTR_WRITEBACK_SWAP_ENABLE, 1);
 431 #endif
 432                 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
 433
 434                 /* Initialize the ring buffer's read and write pointers */
 435                 WREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i], 0);
 436                 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], 0);
 437                 WREG32(mmSDMA0_GFX_IB_RPTR + sdma_offsets[i], 0);
 438                 WREG32(mmSDMA0_GFX_IB_OFFSET + sdma_offsets[i], 0);
 439
 440                 /* set the wb address whether it's enabled or not */
 441                 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i],
 442                        upper_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFF);
 443                 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i],
 444                        lower_32_bits(ring->rptr_gpu_addr) & 0xFFFFFFFC);
 445
 446                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1);
 447
 448                 WREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i], ring->gpu_addr >> 8);
 449                 WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40);
 450
 451                 ring->wptr = 0;
 452                 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], ring->wptr << 2);
 453
 454                 /* enable DMA RB */
 455                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1);
 456                 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
 457
 458                 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]);
 459                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1);
 460 #ifdef __BIG_ENDIAN
 461                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1);
 462 #endif
 463                 /* enable DMA IBs */
 464                 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl);
 465         }
 466
 467         sdma_v2_4_enable(adev, true);
 468         for (i = 0; i < adev->sdma.num_instances; i++) {
 469                 ring = &adev->sdma.instance[i].ring;
 470                 r = amdgpu_ring_test_helper(ring);
 471                 if (r)
 472                         return r;
 473         }
 474
 475         return 0;
 476 }
 477
 478 /**
 479  * sdma_v2_4_rlc_resume - setup and start the async dma engines
 480  *
 481  * @adev: amdgpu_device pointer
 482  *
 483  * Set up the compute DMA queues and enable them (VI).
 484  * Returns 0 for success, error for failure.
 485  */
 486 static int sdma_v2_4_rlc_resume(struct amdgpu_device *adev)
 487 {
 488         /* XXX todo */
 489         return 0;
 490 }
 491
 492
 493 /**
 494  * sdma_v2_4_start - setup and start the async dma engines
 495  *
 496  * @adev: amdgpu_device pointer
 497  *
 498  * Set up the DMA engines and enable them (VI).
 499  * Returns 0 for success, error for failure.
 500  */
 501 static int sdma_v2_4_start(struct amdgpu_device *adev)
 502 {
 503         int r;
 504
 505         /* halt the engine before programing */
 506         sdma_v2_4_enable(adev, false);
 507
 508         /* start the gfx rings and rlc compute queues */
 509         r = sdma_v2_4_gfx_resume(adev);
 510         if (r)
 511                 return r;
 512         r = sdma_v2_4_rlc_resume(adev);
 513         if (r)
 514                 return r;
 515
 516         return 0;
 517 }
 518
 519 /**
 520  * sdma_v2_4_ring_test_ring - simple async dma engine test
 521  *
 522  * @ring: amdgpu_ring structure holding ring information
 523  *
 524  * Test the DMA engine by writing using it to write an
 525  * value to memory. (VI).
 526  * Returns 0 for success, error for failure.
 527  */
 528 static int sdma_v2_4_ring_test_ring(struct amdgpu_ring *ring)
 529 {
 530         struct amdgpu_device *adev = ring->adev;
 531         unsigned i;
 532         unsigned index;
 533         int r;
 534         u32 tmp;
 535         u64 gpu_addr;
 536
 537         r = amdgpu_device_wb_get(adev, &index);
 538         if (r)
 539                 return r;
 540
 541         gpu_addr = adev->wb.gpu_addr + (index * 4);
 542         tmp = 0xCAFEDEAD;
 543         adev->wb.wb[index] = cpu_to_le32(tmp);
 544
 545         r = amdgpu_ring_alloc(ring, 5);
 546         if (r)
 547                 goto error_free_wb;
 548
 549         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 550                           SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
 551         amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
 552         amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
 553         amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1));
 554         amdgpu_ring_write(ring, 0xDEADBEEF);
 555         amdgpu_ring_commit(ring);
 556
 557         for (i = 0; i < adev->usec_timeout; i++) {
 558                 tmp = le32_to_cpu(adev->wb.wb[index]);
 559                 if (tmp == 0xDEADBEEF)
 560                         break;
 561                 udelay(1);
 562         }
 563
 564         if (i >= adev->usec_timeout)
 565                 r = -ETIMEDOUT;
 566
 567 error_free_wb:
 568         amdgpu_device_wb_free(adev, index);
 569         return r;
 570 }
 571
 572 /**
 573  * sdma_v2_4_ring_test_ib - test an IB on the DMA engine
 574  *
 575  * @ring: amdgpu_ring structure holding ring information
 576  * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT
 577  *
 578  * Test a simple IB in the DMA ring (VI).
 579  * Returns 0 on success, error on failure.
 580  */
 581 static int sdma_v2_4_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 582 {
 583         struct amdgpu_device *adev = ring->adev;
 584         struct amdgpu_ib ib;
 585         struct dma_fence *f = NULL;
 586         unsigned index;
 587         u32 tmp = 0;
 588         u64 gpu_addr;
 589         long r;
 590
 591         r = amdgpu_device_wb_get(adev, &index);
 592         if (r)
 593                 return r;
 594
 595         gpu_addr = adev->wb.gpu_addr + (index * 4);
 596         tmp = 0xCAFEDEAD;
 597         adev->wb.wb[index] = cpu_to_le32(tmp);
 598         memset(&ib, 0, sizeof(ib));
 599         r = amdgpu_ib_get(adev, NULL, 256,
 600                                         AMDGPU_IB_POOL_DIRECT, &ib);
 601         if (r)
 602                 goto err0;
 603
 604         ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 605                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
 606         ib.ptr[1] = lower_32_bits(gpu_addr);
 607         ib.ptr[2] = upper_32_bits(gpu_addr);
 608         ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1);
 609         ib.ptr[4] = 0xDEADBEEF;
 610         ib.ptr[5] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
 611         ib.ptr[6] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
 612         ib.ptr[7] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
 613         ib.length_dw = 8;
 614
 615         r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f);
 616         if (r)
 617                 goto err1;
 618
 619         r = dma_fence_wait_timeout(f, false, timeout);
 620         if (r == 0) {
 621                 r = -ETIMEDOUT;
 622                 goto err1;
 623         } else if (r < 0) {
 624                 goto err1;
 625         }
 626         tmp = le32_to_cpu(adev->wb.wb[index]);
 627         if (tmp == 0xDEADBEEF)
 628                 r = 0;
 629         else
 630                 r = -EINVAL;
 631
 632 err1:
 633         amdgpu_ib_free(adev, &ib, NULL);
 634         dma_fence_put(f);
 635 err0:
 636         amdgpu_device_wb_free(adev, index);
 637         return r;
 638 }
 639
 640 /**
 641  * sdma_v2_4_vm_copy_pte - update PTEs by copying them from the GART
 642  *
 643  * @ib: indirect buffer to fill with commands
 644  * @pe: addr of the page entry
 645  * @src: src addr to copy from
 646  * @count: number of page entries to update
 647  *
 648  * Update PTEs by copying them from the GART using sDMA (CIK).
 649  */
 650 static void sdma_v2_4_vm_copy_pte(struct amdgpu_ib *ib,
 651                                   uint64_t pe, uint64_t src,
 652                                   unsigned count)
 653 {
 654         unsigned bytes = count * 8;
 655
 656         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
 657                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
 658         ib->ptr[ib->length_dw++] = bytes;
 659         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
 660         ib->ptr[ib->length_dw++] = lower_32_bits(src);
 661         ib->ptr[ib->length_dw++] = upper_32_bits(src);
 662         ib->ptr[ib->length_dw++] = lower_32_bits(pe);
 663         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
 664 }
 665
 666 /**
 667  * sdma_v2_4_vm_write_pte - update PTEs by writing them manually
 668  *
 669  * @ib: indirect buffer to fill with commands
 670  * @pe: addr of the page entry
 671  * @value: dst addr to write into pe
 672  * @count: number of page entries to update
 673  * @incr: increase next addr by incr bytes
 674  *
 675  * Update PTEs by writing them manually using sDMA (CIK).
 676  */
 677 static void sdma_v2_4_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe,
 678                                    uint64_t value, unsigned count,
 679                                    uint32_t incr)
 680 {
 681         unsigned ndw = count * 2;
 682
 683         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 684                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
 685         ib->ptr[ib->length_dw++] = pe;
 686         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
 687         ib->ptr[ib->length_dw++] = ndw;
 688         for (; ndw > 0; ndw -= 2) {
 689                 ib->ptr[ib->length_dw++] = lower_32_bits(value);
 690                 ib->ptr[ib->length_dw++] = upper_32_bits(value);
 691                 value += incr;
 692         }
 693 }
 694
 695 /**
 696  * sdma_v2_4_vm_set_pte_pde - update the page tables using sDMA
 697  *
 698  * @ib: indirect buffer to fill with commands
 699  * @pe: addr of the page entry
 700  * @addr: dst addr to write into pe
 701  * @count: number of page entries to update
 702  * @incr: increase next addr by incr bytes
 703  * @flags: access flags
 704  *
 705  * Update the page tables using sDMA (CIK).
 706  */
 707 static void sdma_v2_4_vm_set_pte_pde(struct amdgpu_ib *ib, uint64_t pe,
 708                                      uint64_t addr, unsigned count,
 709                                      uint32_t incr, uint64_t flags)
 710 {
 711         /* for physically contiguous pages (vram) */
 712         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_GEN_PTEPDE);
 713         ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */
 714         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
 715         ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */
 716         ib->ptr[ib->length_dw++] = upper_32_bits(flags);
 717         ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */
 718         ib->ptr[ib->length_dw++] = upper_32_bits(addr);
 719         ib->ptr[ib->length_dw++] = incr; /* increment size */
 720         ib->ptr[ib->length_dw++] = 0;
 721         ib->ptr[ib->length_dw++] = count; /* number of entries */
 722 }
 723
 724 /**
 725  * sdma_v2_4_ring_pad_ib - pad the IB to the required number of dw
 726  *
 727  * @ring: amdgpu_ring structure holding ring information
 728  * @ib: indirect buffer to fill with padding
 729  *
 730  */
 731 static void sdma_v2_4_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
 732 {
 733         struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
 734         u32 pad_count;
 735         int i;
 736
 737         pad_count = (-ib->length_dw) & 7;
 738         for (i = 0; i < pad_count; i++)
 739                 if (sdma && sdma->burst_nop && (i == 0))
 740                         ib->ptr[ib->length_dw++] =
 741                                 SDMA_PKT_HEADER_OP(SDMA_OP_NOP) |
 742                                 SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1);
 743                 else
 744                         ib->ptr[ib->length_dw++] =
 745                                 SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
 746 }
 747
 748 /**
 749  * sdma_v2_4_ring_emit_pipeline_sync - sync the pipeline
 750  *
 751  * @ring: amdgpu_ring pointer
 752  *
 753  * Make sure all previous operations are completed (CIK).
 754  */
 755 static void sdma_v2_4_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
 756 {
 757         uint32_t seq = ring->fence_drv.sync_seq;
 758         uint64_t addr = ring->fence_drv.gpu_addr;
 759
 760         /* wait for idle */
 761         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
 762                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
 763                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */
 764                           SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1));
 765         amdgpu_ring_write(ring, addr & 0xfffffffc);
 766         amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
 767         amdgpu_ring_write(ring, seq); /* reference */
 768         amdgpu_ring_write(ring, 0xffffffff); /* mask */
 769         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
 770                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */
 771 }
 772
 773 /**
 774  * sdma_v2_4_ring_emit_vm_flush - cik vm flush using sDMA
 775  *
 776  * @ring: amdgpu_ring pointer
 777  * @vmid: vmid number to use
 778  * @pd_addr: address
 779  *
 780  * Update the page table base and flush the VM TLB
 781  * using sDMA (VI).
 782  */
 783 static void sdma_v2_4_ring_emit_vm_flush(struct amdgpu_ring *ring,
 784                                          unsigned vmid, uint64_t pd_addr)
 785 {
 786         amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
 787
 788         /* wait for flush */
 789         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
 790                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
 791                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(0)); /* always */
 792         amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2);
 793         amdgpu_ring_write(ring, 0);
 794         amdgpu_ring_write(ring, 0); /* reference */
 795         amdgpu_ring_write(ring, 0); /* mask */
 796         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
 797                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
 798 }
 799
 800 static void sdma_v2_4_ring_emit_wreg(struct amdgpu_ring *ring,
 801                                      uint32_t reg, uint32_t val)
 802 {
 803         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
 804                           SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
 805         amdgpu_ring_write(ring, reg);
 806         amdgpu_ring_write(ring, val);
 807 }
 808
 809 static int sdma_v2_4_early_init(void *handle)
 810 {
 811         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 812         int r;
 813
 814         adev->sdma.num_instances = SDMA_MAX_INSTANCE;
 815
 816         r = sdma_v2_4_init_microcode(adev);
 817         if (r)
 818                 return r;
 819
 820         sdma_v2_4_set_ring_funcs(adev);
 821         sdma_v2_4_set_buffer_funcs(adev);
 822         sdma_v2_4_set_vm_pte_funcs(adev);
 823         sdma_v2_4_set_irq_funcs(adev);
 824
 825         return 0;
 826 }
 827
 828 static int sdma_v2_4_sw_init(void *handle)
 829 {
 830         struct amdgpu_ring *ring;
 831         int r, i;
 832         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 833
 834         /* SDMA trap event */
 835         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_SDMA_TRAP,
 836                               &adev->sdma.trap_irq);
 837         if (r)
 838                 return r;
 839
 840         /* SDMA Privileged inst */
 841         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 241,
 842                               &adev->sdma.illegal_inst_irq);
 843         if (r)
 844                 return r;
 845
 846         /* SDMA Privileged inst */
 847         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_SDMA_SRBM_WRITE,
 848                               &adev->sdma.illegal_inst_irq);
 849         if (r)
 850                 return r;
 851
 852         for (i = 0; i < adev->sdma.num_instances; i++) {
 853                 ring = &adev->sdma.instance[i].ring;
 854                 ring->ring_obj = NULL;
 855                 ring->use_doorbell = false;
 856                 sprintf(ring->name, "sdma%d", i);
 857                 r = amdgpu_ring_init(adev, ring, 1024, &adev->sdma.trap_irq,
 858                                      (i == 0) ? AMDGPU_SDMA_IRQ_INSTANCE0 :
 859                                      AMDGPU_SDMA_IRQ_INSTANCE1,
 860                                      AMDGPU_RING_PRIO_DEFAULT, NULL);
 861                 if (r)
 862                         return r;
 863         }
 864
 865         return r;
 866 }
 867
 868 static int sdma_v2_4_sw_fini(void *handle)
 869 {
 870         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 871         int i;
 872
 873         for (i = 0; i < adev->sdma.num_instances; i++)
 874                 amdgpu_ring_fini(&adev->sdma.instance[i].ring);
 875
 876         sdma_v2_4_free_microcode(adev);
 877         return 0;
 878 }
 879
 880 static int sdma_v2_4_hw_init(void *handle)
 881 {
 882         int r;
 883         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 884
 885         sdma_v2_4_init_golden_registers(adev);
 886
 887         r = sdma_v2_4_start(adev);
 888         if (r)
 889                 return r;
 890
 891         return r;
 892 }
 893
 894 static int sdma_v2_4_hw_fini(void *handle)
 895 {
 896         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 897
 898         sdma_v2_4_enable(adev, false);
 899
 900         return 0;
 901 }
 902
 903 static int sdma_v2_4_suspend(void *handle)
 904 {
 905         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 906
 907         return sdma_v2_4_hw_fini(adev);
 908 }
 909
 910 static int sdma_v2_4_resume(void *handle)
 911 {
 912         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 913
 914         return sdma_v2_4_hw_init(adev);
 915 }
 916
 917 static bool sdma_v2_4_is_idle(void *handle)
 918 {
 919         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 920         u32 tmp = RREG32(mmSRBM_STATUS2);
 921
 922         if (tmp & (SRBM_STATUS2__SDMA_BUSY_MASK |
 923                    SRBM_STATUS2__SDMA1_BUSY_MASK))
 924             return false;
 925
 926         return true;
 927 }
 928
 929 static int sdma_v2_4_wait_for_idle(void *handle)
 930 {
 931         unsigned i;
 932         u32 tmp;
 933         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 934
 935         for (i = 0; i < adev->usec_timeout; i++) {
 936                 tmp = RREG32(mmSRBM_STATUS2) & (SRBM_STATUS2__SDMA_BUSY_MASK |
 937                                 SRBM_STATUS2__SDMA1_BUSY_MASK);
 938
 939                 if (!tmp)
 940                         return 0;
 941                 udelay(1);
 942         }
 943         return -ETIMEDOUT;
 944 }
 945
 946 static int sdma_v2_4_soft_reset(void *handle)
 947 {
 948         u32 srbm_soft_reset = 0;
 949         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 950         u32 tmp = RREG32(mmSRBM_STATUS2);
 951
 952         if (tmp & SRBM_STATUS2__SDMA_BUSY_MASK) {
 953                 /* sdma0 */
 954                 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET);
 955                 tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 0);
 956                 WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp);
 957                 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK;
 958         }
 959         if (tmp & SRBM_STATUS2__SDMA1_BUSY_MASK) {
 960                 /* sdma1 */
 961                 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET);
 962                 tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 0);
 963                 WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp);
 964                 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK;
 965         }
 966
 967         if (srbm_soft_reset) {
 968                 tmp = RREG32(mmSRBM_SOFT_RESET);
 969                 tmp |= srbm_soft_reset;
 970                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
 971                 WREG32(mmSRBM_SOFT_RESET, tmp);
 972                 tmp = RREG32(mmSRBM_SOFT_RESET);
 973
 974                 udelay(50);
 975
 976                 tmp &= ~srbm_soft_reset;
 977                 WREG32(mmSRBM_SOFT_RESET, tmp);
 978                 tmp = RREG32(mmSRBM_SOFT_RESET);
 979
 980                 /* Wait a little for things to settle down */
 981                 udelay(50);
 982         }
 983
 984         return 0;
 985 }
 986
 987 static int sdma_v2_4_set_trap_irq_state(struct amdgpu_device *adev,
 988                                         struct amdgpu_irq_src *src,
 989                                         unsigned type,
 990                                         enum amdgpu_interrupt_state state)
 991 {
 992         u32 sdma_cntl;
 993
 994         switch (type) {
 995         case AMDGPU_SDMA_IRQ_INSTANCE0:
 996                 switch (state) {
 997                 case AMDGPU_IRQ_STATE_DISABLE:
 998                         sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
 999                         sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0);
1000                         WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1001                         break;
1002                 case AMDGPU_IRQ_STATE_ENABLE:
1003                         sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1004                         sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1);
1005                         WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1006                         break;
1007                 default:
1008                         break;
1009                 }
1010                 break;
1011         case AMDGPU_SDMA_IRQ_INSTANCE1:
1012                 switch (state) {
1013                 case AMDGPU_IRQ_STATE_DISABLE:
1014                         sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1015                         sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0);
1016                         WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1017                         break;
1018                 case AMDGPU_IRQ_STATE_ENABLE:
1019                         sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1020                         sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1);
1021                         WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1022                         break;
1023                 default:
1024                         break;
1025                 }
1026                 break;
1027         default:
1028                 break;
1029         }
1030         return 0;
1031 }
1032
1033 static int sdma_v2_4_process_trap_irq(struct amdgpu_device *adev,
1034                                       struct amdgpu_irq_src *source,
1035                                       struct amdgpu_iv_entry *entry)
1036 {
1037         u8 instance_id, queue_id;
1038
1039         instance_id = (entry->ring_id & 0x3) >> 0;
1040         queue_id = (entry->ring_id & 0xc) >> 2;
1041         DRM_DEBUG("IH: SDMA trap\n");
1042         switch (instance_id) {
1043         case 0:
1044                 switch (queue_id) {
1045                 case 0:
1046                         amdgpu_fence_process(&adev->sdma.instance[0].ring);
1047                         break;
1048                 case 1:
1049                         /* XXX compute */
1050                         break;
1051                 case 2:
1052                         /* XXX compute */
1053                         break;
1054                 }
1055                 break;
1056         case 1:
1057                 switch (queue_id) {
1058                 case 0:
1059                         amdgpu_fence_process(&adev->sdma.instance[1].ring);
1060                         break;
1061                 case 1:
1062                         /* XXX compute */
1063                         break;
1064                 case 2:
1065                         /* XXX compute */
1066                         break;
1067                 }
1068                 break;
1069         }
1070         return 0;
1071 }
1072
1073 static int sdma_v2_4_process_illegal_inst_irq(struct amdgpu_device *adev,
1074                                               struct amdgpu_irq_src *source,
1075                                               struct amdgpu_iv_entry *entry)
1076 {
1077         u8 instance_id, queue_id;
1078
1079         DRM_ERROR("Illegal instruction in SDMA command stream\n");
1080         instance_id = (entry->ring_id & 0x3) >> 0;
1081         queue_id = (entry->ring_id & 0xc) >> 2;
1082
1083         if (instance_id <= 1 && queue_id == 0)
1084                 drm_sched_fault(&adev->sdma.instance[instance_id].ring.sched);
1085         return 0;
1086 }
1087
1088 static int sdma_v2_4_set_clockgating_state(void *handle,
1089                                           enum amd_clockgating_state state)
1090 {
1091         /* XXX handled via the smc on VI */
1092         return 0;
1093 }
1094
1095 static int sdma_v2_4_set_powergating_state(void *handle,
1096                                           enum amd_powergating_state state)
1097 {
1098         return 0;
1099 }
1100
1101 static const struct amd_ip_funcs sdma_v2_4_ip_funcs = {
1102         .name = "sdma_v2_4",
1103         .early_init = sdma_v2_4_early_init,
1104         .late_init = NULL,
1105         .sw_init = sdma_v2_4_sw_init,
1106         .sw_fini = sdma_v2_4_sw_fini,
1107         .hw_init = sdma_v2_4_hw_init,
1108         .hw_fini = sdma_v2_4_hw_fini,
1109         .suspend = sdma_v2_4_suspend,
1110         .resume = sdma_v2_4_resume,
1111         .is_idle = sdma_v2_4_is_idle,
1112         .wait_for_idle = sdma_v2_4_wait_for_idle,
1113         .soft_reset = sdma_v2_4_soft_reset,
1114         .set_clockgating_state = sdma_v2_4_set_clockgating_state,
1115         .set_powergating_state = sdma_v2_4_set_powergating_state,
1116         .dump_ip_state = NULL,
1117         .print_ip_state = NULL,
1118 };
1119
1120 static const struct amdgpu_ring_funcs sdma_v2_4_ring_funcs = {
1121         .type = AMDGPU_RING_TYPE_SDMA,
1122         .align_mask = 0xf,
1123         .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP),
1124         .support_64bit_ptrs = false,
1125         .secure_submission_supported = true,
1126         .get_rptr = sdma_v2_4_ring_get_rptr,
1127         .get_wptr = sdma_v2_4_ring_get_wptr,
1128         .set_wptr = sdma_v2_4_ring_set_wptr,
1129         .emit_frame_size =
1130                 6 + /* sdma_v2_4_ring_emit_hdp_flush */
1131                 3 + /* hdp invalidate */
1132                 6 + /* sdma_v2_4_ring_emit_pipeline_sync */
1133                 VI_FLUSH_GPU_TLB_NUM_WREG * 3 + 6 + /* sdma_v2_4_ring_emit_vm_flush */
1134                 10 + 10 + 10, /* sdma_v2_4_ring_emit_fence x3 for user fence, vm fence */
1135         .emit_ib_size = 7 + 6, /* sdma_v2_4_ring_emit_ib */
1136         .emit_ib = sdma_v2_4_ring_emit_ib,
1137         .emit_fence = sdma_v2_4_ring_emit_fence,
1138         .emit_pipeline_sync = sdma_v2_4_ring_emit_pipeline_sync,
1139         .emit_vm_flush = sdma_v2_4_ring_emit_vm_flush,
1140         .emit_hdp_flush = sdma_v2_4_ring_emit_hdp_flush,
1141         .test_ring = sdma_v2_4_ring_test_ring,
1142         .test_ib = sdma_v2_4_ring_test_ib,
1143         .insert_nop = sdma_v2_4_ring_insert_nop,
1144         .pad_ib = sdma_v2_4_ring_pad_ib,
1145         .emit_wreg = sdma_v2_4_ring_emit_wreg,
1146 };
1147
1148 static void sdma_v2_4_set_ring_funcs(struct amdgpu_device *adev)
1149 {
1150         int i;
1151
1152         for (i = 0; i < adev->sdma.num_instances; i++) {
1153                 adev->sdma.instance[i].ring.funcs = &sdma_v2_4_ring_funcs;
1154                 adev->sdma.instance[i].ring.me = i;
1155         }
1156 }
1157
1158 static const struct amdgpu_irq_src_funcs sdma_v2_4_trap_irq_funcs = {
1159         .set = sdma_v2_4_set_trap_irq_state,
1160         .process = sdma_v2_4_process_trap_irq,
1161 };
1162
1163 static const struct amdgpu_irq_src_funcs sdma_v2_4_illegal_inst_irq_funcs = {
1164         .process = sdma_v2_4_process_illegal_inst_irq,
1165 };
1166
1167 static void sdma_v2_4_set_irq_funcs(struct amdgpu_device *adev)
1168 {
1169         adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST;
1170         adev->sdma.trap_irq.funcs = &sdma_v2_4_trap_irq_funcs;
1171         adev->sdma.illegal_inst_irq.funcs = &sdma_v2_4_illegal_inst_irq_funcs;
1172 }
1173
1174 /**
1175  * sdma_v2_4_emit_copy_buffer - copy buffer using the sDMA engine
1176  *
1177  * @ib: indirect buffer to copy to
1178  * @src_offset: src GPU address
1179  * @dst_offset: dst GPU address
1180  * @byte_count: number of bytes to xfer
1181  * @copy_flags: unused
1182  *
1183  * Copy GPU buffers using the DMA engine (VI).
1184  * Used by the amdgpu ttm implementation to move pages if
1185  * registered as the asic copy callback.
1186  */
1187 static void sdma_v2_4_emit_copy_buffer(struct amdgpu_ib *ib,
1188                                        uint64_t src_offset,
1189                                        uint64_t dst_offset,
1190                                        uint32_t byte_count,
1191                                        uint32_t copy_flags)
1192 {
1193         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1194                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
1195         ib->ptr[ib->length_dw++] = byte_count;
1196         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1197         ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1198         ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1199         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1200         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1201 }
1202
1203 /**
1204  * sdma_v2_4_emit_fill_buffer - fill buffer using the sDMA engine
1205  *
1206  * @ib: indirect buffer to copy to
1207  * @src_data: value to write to buffer
1208  * @dst_offset: dst GPU address
1209  * @byte_count: number of bytes to xfer
1210  *
1211  * Fill GPU buffers using the DMA engine (VI).
1212  */
1213 static void sdma_v2_4_emit_fill_buffer(struct amdgpu_ib *ib,
1214                                        uint32_t src_data,
1215                                        uint64_t dst_offset,
1216                                        uint32_t byte_count)
1217 {
1218         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL);
1219         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1220         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1221         ib->ptr[ib->length_dw++] = src_data;
1222         ib->ptr[ib->length_dw++] = byte_count;
1223 }
1224
1225 static const struct amdgpu_buffer_funcs sdma_v2_4_buffer_funcs = {
1226         .copy_max_bytes = 0x1fffff,
1227         .copy_num_dw = 7,
1228         .emit_copy_buffer = sdma_v2_4_emit_copy_buffer,
1229
1230         .fill_max_bytes = 0x1fffff,
1231         .fill_num_dw = 7,
1232         .emit_fill_buffer = sdma_v2_4_emit_fill_buffer,
1233 };
1234
1235 static void sdma_v2_4_set_buffer_funcs(struct amdgpu_device *adev)
1236 {
1237         adev->mman.buffer_funcs = &sdma_v2_4_buffer_funcs;
1238         adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
1239 }
1240
1241 static const struct amdgpu_vm_pte_funcs sdma_v2_4_vm_pte_funcs = {
1242         .copy_pte_num_dw = 7,
1243         .copy_pte = sdma_v2_4_vm_copy_pte,
1244
1245         .write_pte = sdma_v2_4_vm_write_pte,
1246         .set_pte_pde = sdma_v2_4_vm_set_pte_pde,
1247 };
1248
1249 static void sdma_v2_4_set_vm_pte_funcs(struct amdgpu_device *adev)
1250 {
1251         unsigned i;
1252
1253         adev->vm_manager.vm_pte_funcs = &sdma_v2_4_vm_pte_funcs;
1254         for (i = 0; i < adev->sdma.num_instances; i++) {
1255                 adev->vm_manager.vm_pte_scheds[i] =
1256                         &adev->sdma.instance[i].ring.sched;
1257         }
1258         adev->vm_manager.vm_pte_num_scheds = adev->sdma.num_instances;
1259 }
1260
1261 const struct amdgpu_ip_block_version sdma_v2_4_ip_block = {
1262         .type = AMD_IP_BLOCK_TYPE_SDMA,
1263         .major = 2,
1264         .minor = 4,
1265         .rev = 0,
1266         .funcs = &sdma_v2_4_ip_funcs,
1267 };