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 {
  62         SDMA0_REGISTER_OFFSET,
  63         SDMA1_REGISTER_OFFSET
  64 };
  65
  66 static const u32 golden_settings_iceland_a11[] =
  67 {
  68         mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007,
  69         mmSDMA0_CLK_CTRL, 0xff000fff, 0x00000000,
  70         mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007,
  71         mmSDMA1_CLK_CTRL, 0xff000fff, 0x00000000,
  72 };
  73
  74 static const u32 iceland_mgcg_cgcg_init[] =
  75 {
  76         mmSDMA0_CLK_CTRL, 0xff000ff0, 0x00000100,
  77         mmSDMA1_CLK_CTRL, 0xff000ff0, 0x00000100
  78 };
  79
  80 /*
  81  * sDMA - System DMA
  82  * Starting with CIK, the GPU has new asynchronous
  83  * DMA engines.  These engines are used for compute
  84  * and gfx.  There are two DMA engines (SDMA0, SDMA1)
  85  * and each one supports 1 ring buffer used for gfx
  86  * and 2 queues used for compute.
  87  *
  88  * The programming model is very similar to the CP
  89  * (ring buffer, IBs, etc.), but sDMA has it's own
  90  * packet format that is different from the PM4 format
  91  * used by the CP. sDMA supports copying data, writing
  92  * embedded data, solid fills, and a number of other
  93  * things.  It also has support for tiling/detiling of
  94  * buffers.
  95  */
  96
  97 static void sdma_v2_4_init_golden_registers(struct amdgpu_device *adev)
  98 {
  99         switch (adev->asic_type) {
 100         case CHIP_TOPAZ:
 101                 amdgpu_device_program_register_sequence(adev,
 102                                                         iceland_mgcg_cgcg_init,
 103                                                         ARRAY_SIZE(iceland_mgcg_cgcg_init));
 104                 amdgpu_device_program_register_sequence(adev,
 105                                                         golden_settings_iceland_a11,
 106                                                         ARRAY_SIZE(golden_settings_iceland_a11));
 107                 break;
 108         default:
 109                 break;
 110         }
 111 }
 112
 113 static void sdma_v2_4_free_microcode(struct amdgpu_device *adev)
 114 {
 115         int i;
 116         for (i = 0; i < adev->sdma.num_instances; i++) {
 117                 release_firmware(adev->sdma.instance[i].fw);
 118                 adev->sdma.instance[i].fw = NULL;
 119         }
 120 }
 121
 122 /**
 123  * sdma_v2_4_init_microcode - load ucode images from disk
 124  *
 125  * @adev: amdgpu_device pointer
 126  *
 127  * Use the firmware interface to load the ucode images into
 128  * the driver (not loaded into hw).
 129  * Returns 0 on success, error on failure.
 130  */
 131 static int sdma_v2_4_init_microcode(struct amdgpu_device *adev)
 132 {
 133         const char *chip_name;
 134         char fw_name[30];
 135         int err = 0, i;
 136         struct amdgpu_firmware_info *info = NULL;
 137         const struct common_firmware_header *header = NULL;
 138         const struct sdma_firmware_header_v1_0 *hdr;
 139
 140         DRM_DEBUG("\n");
 141
 142         switch (adev->asic_type) {
 143         case CHIP_TOPAZ:
 144                 chip_name = "topaz";
 145                 break;
 146         default: BUG();
 147         }
 148
 149         for (i = 0; i < adev->sdma.num_instances; i++) {
 150                 if (i == 0)
 151                         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name);
 152                 else
 153                         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma1.bin", chip_name);
 154                 err = request_firmware(&adev->sdma.instance[i].fw, fw_name, adev->dev);
 155                 if (err)
 156                         goto out;
 157                 err = amdgpu_ucode_validate(adev->sdma.instance[i].fw);
 158                 if (err)
 159                         goto out;
 160                 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
 161                 adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version);
 162                 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version);
 163                 if (adev->sdma.instance[i].feature_version >= 20)
 164                         adev->sdma.instance[i].burst_nop = true;
 165
 166                 if (adev->firmware.load_type == AMDGPU_FW_LOAD_SMU) {
 167                         info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i];
 168                         info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i;
 169                         info->fw = adev->sdma.instance[i].fw;
 170                         header = (const struct common_firmware_header *)info->fw->data;
 171                         adev->firmware.fw_size +=
 172                                 ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE);
 173                 }
 174         }
 175
 176 out:
 177         if (err) {
 178                 pr_err("sdma_v2_4: Failed to load firmware \"%s\"\n", fw_name);
 179                 for (i = 0; i < adev->sdma.num_instances; i++) {
 180                         release_firmware(adev->sdma.instance[i].fw);
 181                         adev->sdma.instance[i].fw = NULL;
 182                 }
 183         }
 184         return err;
 185 }
 186
 187 /**
 188  * sdma_v2_4_ring_get_rptr - get the current read pointer
 189  *
 190  * @ring: amdgpu ring pointer
 191  *
 192  * Get the current rptr from the hardware (VI+).
 193  */
 194 static uint64_t sdma_v2_4_ring_get_rptr(struct amdgpu_ring *ring)
 195 {
 196         /* XXX check if swapping is necessary on BE */
 197         return ring->adev->wb.wb[ring->rptr_offs] >> 2;
 198 }
 199
 200 /**
 201  * sdma_v2_4_ring_get_wptr - get the current write pointer
 202  *
 203  * @ring: amdgpu ring pointer
 204  *
 205  * Get the current wptr from the hardware (VI+).
 206  */
 207 static uint64_t sdma_v2_4_ring_get_wptr(struct amdgpu_ring *ring)
 208 {
 209         struct amdgpu_device *adev = ring->adev;
 210         u32 wptr = RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[ring->me]) >> 2;
 211
 212         return wptr;
 213 }
 214
 215 /**
 216  * sdma_v2_4_ring_set_wptr - commit the write pointer
 217  *
 218  * @ring: amdgpu ring pointer
 219  *
 220  * Write the wptr back to the hardware (VI+).
 221  */
 222 static void sdma_v2_4_ring_set_wptr(struct amdgpu_ring *ring)
 223 {
 224         struct amdgpu_device *adev = ring->adev;
 225
 226         WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[ring->me], lower_32_bits(ring->wptr) << 2);
 227 }
 228
 229 static void sdma_v2_4_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
 230 {
 231         struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
 232         int i;
 233
 234         for (i = 0; i < count; i++)
 235                 if (sdma && sdma->burst_nop && (i == 0))
 236                         amdgpu_ring_write(ring, ring->funcs->nop |
 237                                 SDMA_PKT_NOP_HEADER_COUNT(count - 1));
 238                 else
 239                         amdgpu_ring_write(ring, ring->funcs->nop);
 240 }
 241
 242 /**
 243  * sdma_v2_4_ring_emit_ib - Schedule an IB on the DMA engine
 244  *
 245  * @ring: amdgpu ring pointer
 246  * @job: job to retrieve vmid from
 247  * @ib: IB object to schedule
 248  * @flags: unused
 249  *
 250  * Schedule an IB in the DMA ring (VI).
 251  */
 252 static void sdma_v2_4_ring_emit_ib(struct amdgpu_ring *ring,
 253                                    struct amdgpu_job *job,
 254                                    struct amdgpu_ib *ib,
 255                                    uint32_t flags)
 256 {
 257         unsigned vmid = AMDGPU_JOB_GET_VMID(job);
 258
 259         /* IB packet must end on a 8 DW boundary */
 260         sdma_v2_4_ring_insert_nop(ring, (2 - lower_32_bits(ring->wptr)) & 7);
 261
 262         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_INDIRECT) |
 263                           SDMA_PKT_INDIRECT_HEADER_VMID(vmid & 0xf));
 264         /* base must be 32 byte aligned */
 265         amdgpu_ring_write(ring, lower_32_bits(ib->gpu_addr) & 0xffffffe0);
 266         amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr));
 267         amdgpu_ring_write(ring, ib->length_dw);
 268         amdgpu_ring_write(ring, 0);
 269         amdgpu_ring_write(ring, 0);
 270
 271 }
 272
 273 /**
 274  * sdma_v2_4_ring_emit_hdp_flush - emit an hdp flush on the DMA ring
 275  *
 276  * @ring: amdgpu ring pointer
 277  *
 278  * Emit an hdp flush packet on the requested DMA ring.
 279  */
 280 static void sdma_v2_4_ring_emit_hdp_flush(struct amdgpu_ring *ring)
 281 {
 282         u32 ref_and_mask = 0;
 283
 284         if (ring->me == 0)
 285                 ref_and_mask = REG_SET_FIELD(ref_and_mask, GPU_HDP_FLUSH_DONE, SDMA0, 1);
 286         else
 287                 ref_and_mask = REG_SET_FIELD(ref_and_mask, GPU_HDP_FLUSH_DONE, SDMA1, 1);
 288
 289         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
 290                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(1) |
 291                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* == */
 292         amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_DONE << 2);
 293         amdgpu_ring_write(ring, mmGPU_HDP_FLUSH_REQ << 2);
 294         amdgpu_ring_write(ring, ref_and_mask); /* reference */
 295         amdgpu_ring_write(ring, ref_and_mask); /* mask */
 296         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
 297                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
 298 }
 299
 300 /**
 301  * sdma_v2_4_ring_emit_fence - emit a fence on the DMA ring
 302  *
 303  * @ring: amdgpu ring pointer
 304  * @addr: address
 305  * @seq: sequence number
 306  * @flags: fence related flags
 307  *
 308  * Add a DMA fence packet to the ring to write
 309  * the fence seq number and DMA trap packet to generate
 310  * an interrupt if needed (VI).
 311  */
 312 static void sdma_v2_4_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
 313                                       unsigned flags)
 314 {
 315         bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
 316         /* write the fence */
 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, lower_32_bits(seq));
 321
 322         /* optionally write high bits as well */
 323         if (write64bit) {
 324                 addr += 4;
 325                 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE));
 326                 amdgpu_ring_write(ring, lower_32_bits(addr));
 327                 amdgpu_ring_write(ring, upper_32_bits(addr));
 328                 amdgpu_ring_write(ring, upper_32_bits(seq));
 329         }
 330
 331         /* generate an interrupt */
 332         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP));
 333         amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0));
 334 }
 335
 336 /**
 337  * sdma_v2_4_gfx_stop - stop the gfx async dma engines
 338  *
 339  * @adev: amdgpu_device pointer
 340  *
 341  * Stop the gfx async dma ring buffers (VI).
 342  */
 343 static void sdma_v2_4_gfx_stop(struct amdgpu_device *adev)
 344 {
 345         struct amdgpu_ring *sdma0 = &adev->sdma.instance[0].ring;
 346         struct amdgpu_ring *sdma1 = &adev->sdma.instance[1].ring;
 347         u32 rb_cntl, ib_cntl;
 348         int i;
 349
 350         if ((adev->mman.buffer_funcs_ring == sdma0) ||
 351             (adev->mman.buffer_funcs_ring == sdma1))
 352                 amdgpu_ttm_set_buffer_funcs_status(adev, false);
 353
 354         for (i = 0; i < adev->sdma.num_instances; i++) {
 355                 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]);
 356                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0);
 357                 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
 358                 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]);
 359                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0);
 360                 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl);
 361         }
 362 }
 363
 364 /**
 365  * sdma_v2_4_rlc_stop - stop the compute async dma engines
 366  *
 367  * @adev: amdgpu_device pointer
 368  *
 369  * Stop the compute async dma queues (VI).
 370  */
 371 static void sdma_v2_4_rlc_stop(struct amdgpu_device *adev)
 372 {
 373         /* XXX todo */
 374 }
 375
 376 /**
 377  * sdma_v2_4_enable - stop the async dma engines
 378  *
 379  * @adev: amdgpu_device pointer
 380  * @enable: enable/disable the DMA MEs.
 381  *
 382  * Halt or unhalt the async dma engines (VI).
 383  */
 384 static void sdma_v2_4_enable(struct amdgpu_device *adev, bool enable)
 385 {
 386         u32 f32_cntl;
 387         int i;
 388
 389         if (!enable) {
 390                 sdma_v2_4_gfx_stop(adev);
 391                 sdma_v2_4_rlc_stop(adev);
 392         }
 393
 394         for (i = 0; i < adev->sdma.num_instances; i++) {
 395                 f32_cntl = RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]);
 396                 if (enable)
 397                         f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 0);
 398                 else
 399                         f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 1);
 400                 WREG32(mmSDMA0_F32_CNTL + sdma_offsets[i], f32_cntl);
 401         }
 402 }
 403
 404 /**
 405  * sdma_v2_4_gfx_resume - setup and start the async dma engines
 406  *
 407  * @adev: amdgpu_device pointer
 408  *
 409  * Set up the gfx DMA ring buffers and enable them (VI).
 410  * Returns 0 for success, error for failure.
 411  */
 412 static int sdma_v2_4_gfx_resume(struct amdgpu_device *adev)
 413 {
 414         struct amdgpu_ring *ring;
 415         u32 rb_cntl, ib_cntl;
 416         u32 rb_bufsz;
 417         u32 wb_offset;
 418         int i, j, r;
 419
 420         for (i = 0; i < adev->sdma.num_instances; i++) {
 421                 ring = &adev->sdma.instance[i].ring;
 422                 wb_offset = (ring->rptr_offs * 4);
 423
 424                 mutex_lock(&adev->srbm_mutex);
 425                 for (j = 0; j < 16; j++) {
 426                         vi_srbm_select(adev, 0, 0, 0, j);
 427                         /* SDMA GFX */
 428                         WREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i], 0);
 429                         WREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i], 0);
 430                 }
 431                 vi_srbm_select(adev, 0, 0, 0, 0);
 432                 mutex_unlock(&adev->srbm_mutex);
 433
 434                 WREG32(mmSDMA0_TILING_CONFIG + sdma_offsets[i],
 435                        adev->gfx.config.gb_addr_config & 0x70);
 436
 437                 WREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i], 0);
 438
 439                 /* Set ring buffer size in dwords */
 440                 rb_bufsz = order_base_2(ring->ring_size / 4);
 441                 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]);
 442                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
 443 #ifdef __BIG_ENDIAN
 444                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);
 445                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL,
 446                                         RPTR_WRITEBACK_SWAP_ENABLE, 1);
 447 #endif
 448                 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
 449
 450                 /* Initialize the ring buffer's read and write pointers */
 451                 WREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i], 0);
 452                 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], 0);
 453                 WREG32(mmSDMA0_GFX_IB_RPTR + sdma_offsets[i], 0);
 454                 WREG32(mmSDMA0_GFX_IB_OFFSET + sdma_offsets[i], 0);
 455
 456                 /* set the wb address whether it's enabled or not */
 457                 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i],
 458                        upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
 459                 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i],
 460                        lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC);
 461
 462                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1);
 463
 464                 WREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i], ring->gpu_addr >> 8);
 465                 WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40);
 466
 467                 ring->wptr = 0;
 468                 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], lower_32_bits(ring->wptr) << 2);
 469
 470                 /* enable DMA RB */
 471                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1);
 472                 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
 473
 474                 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]);
 475                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1);
 476 #ifdef __BIG_ENDIAN
 477                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1);
 478 #endif
 479                 /* enable DMA IBs */
 480                 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl);
 481
 482                 ring->sched.ready = true;
 483         }
 484
 485         sdma_v2_4_enable(adev, true);
 486         for (i = 0; i < adev->sdma.num_instances; i++) {
 487                 ring = &adev->sdma.instance[i].ring;
 488                 r = amdgpu_ring_test_helper(ring);
 489                 if (r)
 490                         return r;
 491
 492                 if (adev->mman.buffer_funcs_ring == ring)
 493                         amdgpu_ttm_set_buffer_funcs_status(adev, true);
 494         }
 495
 496         return 0;
 497 }
 498
 499 /**
 500  * sdma_v2_4_rlc_resume - setup and start the async dma engines
 501  *
 502  * @adev: amdgpu_device pointer
 503  *
 504  * Set up the compute DMA queues and enable them (VI).
 505  * Returns 0 for success, error for failure.
 506  */
 507 static int sdma_v2_4_rlc_resume(struct amdgpu_device *adev)
 508 {
 509         /* XXX todo */
 510         return 0;
 511 }
 512
 513
 514 /**
 515  * sdma_v2_4_start - setup and start the async dma engines
 516  *
 517  * @adev: amdgpu_device pointer
 518  *
 519  * Set up the DMA engines and enable them (VI).
 520  * Returns 0 for success, error for failure.
 521  */
 522 static int sdma_v2_4_start(struct amdgpu_device *adev)
 523 {
 524         int r;
 525
 526         /* halt the engine before programing */
 527         sdma_v2_4_enable(adev, false);
 528
 529         /* start the gfx rings and rlc compute queues */
 530         r = sdma_v2_4_gfx_resume(adev);
 531         if (r)
 532                 return r;
 533         r = sdma_v2_4_rlc_resume(adev);
 534         if (r)
 535                 return r;
 536
 537         return 0;
 538 }
 539
 540 /**
 541  * sdma_v2_4_ring_test_ring - simple async dma engine test
 542  *
 543  * @ring: amdgpu_ring structure holding ring information
 544  *
 545  * Test the DMA engine by writing using it to write an
 546  * value to memory. (VI).
 547  * Returns 0 for success, error for failure.
 548  */
 549 static int sdma_v2_4_ring_test_ring(struct amdgpu_ring *ring)
 550 {
 551         struct amdgpu_device *adev = ring->adev;
 552         unsigned i;
 553         unsigned index;
 554         int r;
 555         u32 tmp;
 556         u64 gpu_addr;
 557
 558         r = amdgpu_device_wb_get(adev, &index);
 559         if (r)
 560                 return r;
 561
 562         gpu_addr = adev->wb.gpu_addr + (index * 4);
 563         tmp = 0xCAFEDEAD;
 564         adev->wb.wb[index] = cpu_to_le32(tmp);
 565
 566         r = amdgpu_ring_alloc(ring, 5);
 567         if (r)
 568                 goto error_free_wb;
 569
 570         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 571                           SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
 572         amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
 573         amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
 574         amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1));
 575         amdgpu_ring_write(ring, 0xDEADBEEF);
 576         amdgpu_ring_commit(ring);
 577
 578         for (i = 0; i < adev->usec_timeout; i++) {
 579                 tmp = le32_to_cpu(adev->wb.wb[index]);
 580                 if (tmp == 0xDEADBEEF)
 581                         break;
 582                 udelay(1);
 583         }
 584
 585         if (i >= adev->usec_timeout)
 586                 r = -ETIMEDOUT;
 587
 588 error_free_wb:
 589         amdgpu_device_wb_free(adev, index);
 590         return r;
 591 }
 592
 593 /**
 594  * sdma_v2_4_ring_test_ib - test an IB on the DMA engine
 595  *
 596  * @ring: amdgpu_ring structure holding ring information
 597  * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT
 598  *
 599  * Test a simple IB in the DMA ring (VI).
 600  * Returns 0 on success, error on failure.
 601  */
 602 static int sdma_v2_4_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 603 {
 604         struct amdgpu_device *adev = ring->adev;
 605         struct amdgpu_ib ib;
 606         struct dma_fence *f = NULL;
 607         unsigned index;
 608         u32 tmp = 0;
 609         u64 gpu_addr;
 610         long r;
 611
 612         r = amdgpu_device_wb_get(adev, &index);
 613         if (r)
 614                 return r;
 615
 616         gpu_addr = adev->wb.gpu_addr + (index * 4);
 617         tmp = 0xCAFEDEAD;
 618         adev->wb.wb[index] = cpu_to_le32(tmp);
 619         memset(&ib, 0, sizeof(ib));
 620         r = amdgpu_ib_get(adev, NULL, 256,
 621                                         AMDGPU_IB_POOL_DIRECT, &ib);
 622         if (r)
 623                 goto err0;
 624
 625         ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 626                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
 627         ib.ptr[1] = lower_32_bits(gpu_addr);
 628         ib.ptr[2] = upper_32_bits(gpu_addr);
 629         ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1);
 630         ib.ptr[4] = 0xDEADBEEF;
 631         ib.ptr[5] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
 632         ib.ptr[6] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
 633         ib.ptr[7] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
 634         ib.length_dw = 8;
 635
 636         r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f);
 637         if (r)
 638                 goto err1;
 639
 640         r = dma_fence_wait_timeout(f, false, timeout);
 641         if (r == 0) {
 642                 r = -ETIMEDOUT;
 643                 goto err1;
 644         } else if (r < 0) {
 645                 goto err1;
 646         }
 647         tmp = le32_to_cpu(adev->wb.wb[index]);
 648         if (tmp == 0xDEADBEEF)
 649                 r = 0;
 650         else
 651                 r = -EINVAL;
 652
 653 err1:
 654         amdgpu_ib_free(adev, &ib, NULL);
 655         dma_fence_put(f);
 656 err0:
 657         amdgpu_device_wb_free(adev, index);
 658         return r;
 659 }
 660
 661 /**
 662  * sdma_v2_4_vm_copy_pte - update PTEs by copying them from the GART
 663  *
 664  * @ib: indirect buffer to fill with commands
 665  * @pe: addr of the page entry
 666  * @src: src addr to copy from
 667  * @count: number of page entries to update
 668  *
 669  * Update PTEs by copying them from the GART using sDMA (CIK).
 670  */
 671 static void sdma_v2_4_vm_copy_pte(struct amdgpu_ib *ib,
 672                                   uint64_t pe, uint64_t src,
 673                                   unsigned count)
 674 {
 675         unsigned bytes = count * 8;
 676
 677         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
 678                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
 679         ib->ptr[ib->length_dw++] = bytes;
 680         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
 681         ib->ptr[ib->length_dw++] = lower_32_bits(src);
 682         ib->ptr[ib->length_dw++] = upper_32_bits(src);
 683         ib->ptr[ib->length_dw++] = lower_32_bits(pe);
 684         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
 685 }
 686
 687 /**
 688  * sdma_v2_4_vm_write_pte - update PTEs by writing them manually
 689  *
 690  * @ib: indirect buffer to fill with commands
 691  * @pe: addr of the page entry
 692  * @value: dst addr to write into pe
 693  * @count: number of page entries to update
 694  * @incr: increase next addr by incr bytes
 695  *
 696  * Update PTEs by writing them manually using sDMA (CIK).
 697  */
 698 static void sdma_v2_4_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe,
 699                                    uint64_t value, unsigned count,
 700                                    uint32_t incr)
 701 {
 702         unsigned ndw = count * 2;
 703
 704         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 705                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
 706         ib->ptr[ib->length_dw++] = pe;
 707         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
 708         ib->ptr[ib->length_dw++] = ndw;
 709         for (; ndw > 0; ndw -= 2) {
 710                 ib->ptr[ib->length_dw++] = lower_32_bits(value);
 711                 ib->ptr[ib->length_dw++] = upper_32_bits(value);
 712                 value += incr;
 713         }
 714 }
 715
 716 /**
 717  * sdma_v2_4_vm_set_pte_pde - update the page tables using sDMA
 718  *
 719  * @ib: indirect buffer to fill with commands
 720  * @pe: addr of the page entry
 721  * @addr: dst addr to write into pe
 722  * @count: number of page entries to update
 723  * @incr: increase next addr by incr bytes
 724  * @flags: access flags
 725  *
 726  * Update the page tables using sDMA (CIK).
 727  */
 728 static void sdma_v2_4_vm_set_pte_pde(struct amdgpu_ib *ib, uint64_t pe,
 729                                      uint64_t addr, unsigned count,
 730                                      uint32_t incr, uint64_t flags)
 731 {
 732         /* for physically contiguous pages (vram) */
 733         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_GEN_PTEPDE);
 734         ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */
 735         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
 736         ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */
 737         ib->ptr[ib->length_dw++] = upper_32_bits(flags);
 738         ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */
 739         ib->ptr[ib->length_dw++] = upper_32_bits(addr);
 740         ib->ptr[ib->length_dw++] = incr; /* increment size */
 741         ib->ptr[ib->length_dw++] = 0;
 742         ib->ptr[ib->length_dw++] = count; /* number of entries */
 743 }
 744
 745 /**
 746  * sdma_v2_4_ring_pad_ib - pad the IB to the required number of dw
 747  *
 748  * @ring: amdgpu_ring structure holding ring information
 749  * @ib: indirect buffer to fill with padding
 750  *
 751  */
 752 static void sdma_v2_4_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
 753 {
 754         struct amdgpu_sdma_instance *sdma = amdgpu_sdma_get_instance_from_ring(ring);
 755         u32 pad_count;
 756         int i;
 757
 758         pad_count = (-ib->length_dw) & 7;
 759         for (i = 0; i < pad_count; i++)
 760                 if (sdma && sdma->burst_nop && (i == 0))
 761                         ib->ptr[ib->length_dw++] =
 762                                 SDMA_PKT_HEADER_OP(SDMA_OP_NOP) |
 763                                 SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1);
 764                 else
 765                         ib->ptr[ib->length_dw++] =
 766                                 SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
 767 }
 768
 769 /**
 770  * sdma_v2_4_ring_emit_pipeline_sync - sync the pipeline
 771  *
 772  * @ring: amdgpu_ring pointer
 773  *
 774  * Make sure all previous operations are completed (CIK).
 775  */
 776 static void sdma_v2_4_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
 777 {
 778         uint32_t seq = ring->fence_drv.sync_seq;
 779         uint64_t addr = ring->fence_drv.gpu_addr;
 780
 781         /* wait for idle */
 782         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
 783                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
 784                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */
 785                           SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1));
 786         amdgpu_ring_write(ring, addr & 0xfffffffc);
 787         amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
 788         amdgpu_ring_write(ring, seq); /* reference */
 789         amdgpu_ring_write(ring, 0xffffffff); /* mask */
 790         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
 791                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */
 792 }
 793
 794 /**
 795  * sdma_v2_4_ring_emit_vm_flush - cik vm flush using sDMA
 796  *
 797  * @ring: amdgpu_ring pointer
 798  * @vmid: vmid number to use
 799  * @pd_addr: address
 800  *
 801  * Update the page table base and flush the VM TLB
 802  * using sDMA (VI).
 803  */
 804 static void sdma_v2_4_ring_emit_vm_flush(struct amdgpu_ring *ring,
 805                                          unsigned vmid, uint64_t pd_addr)
 806 {
 807         amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
 808
 809         /* wait for flush */
 810         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
 811                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
 812                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(0)); /* always */
 813         amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2);
 814         amdgpu_ring_write(ring, 0);
 815         amdgpu_ring_write(ring, 0); /* reference */
 816         amdgpu_ring_write(ring, 0); /* mask */
 817         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
 818                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
 819 }
 820
 821 static void sdma_v2_4_ring_emit_wreg(struct amdgpu_ring *ring,
 822                                      uint32_t reg, uint32_t val)
 823 {
 824         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
 825                           SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
 826         amdgpu_ring_write(ring, reg);
 827         amdgpu_ring_write(ring, val);
 828 }
 829
 830 static int sdma_v2_4_early_init(void *handle)
 831 {
 832         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 833
 834         adev->sdma.num_instances = SDMA_MAX_INSTANCE;
 835
 836         sdma_v2_4_set_ring_funcs(adev);
 837         sdma_v2_4_set_buffer_funcs(adev);
 838         sdma_v2_4_set_vm_pte_funcs(adev);
 839         sdma_v2_4_set_irq_funcs(adev);
 840
 841         return 0;
 842 }
 843
 844 static int sdma_v2_4_sw_init(void *handle)
 845 {
 846         struct amdgpu_ring *ring;
 847         int r, i;
 848         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 849
 850         /* SDMA trap event */
 851         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_SDMA_TRAP,
 852                               &adev->sdma.trap_irq);
 853         if (r)
 854                 return r;
 855
 856         /* SDMA Privileged inst */
 857         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, 241,
 858                               &adev->sdma.illegal_inst_irq);
 859         if (r)
 860                 return r;
 861
 862         /* SDMA Privileged inst */
 863         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_SDMA_SRBM_WRITE,
 864                               &adev->sdma.illegal_inst_irq);
 865         if (r)
 866                 return r;
 867
 868         r = sdma_v2_4_init_microcode(adev);
 869         if (r) {
 870                 DRM_ERROR("Failed to load sdma firmware!\n");
 871                 return r;
 872         }
 873
 874         for (i = 0; i < adev->sdma.num_instances; i++) {
 875                 ring = &adev->sdma.instance[i].ring;
 876                 ring->ring_obj = NULL;
 877                 ring->use_doorbell = false;
 878                 sprintf(ring->name, "sdma%d", i);
 879                 r = amdgpu_ring_init(adev, ring, 1024, &adev->sdma.trap_irq,
 880                                      (i == 0) ? AMDGPU_SDMA_IRQ_INSTANCE0 :
 881                                      AMDGPU_SDMA_IRQ_INSTANCE1,
 882                                      AMDGPU_RING_PRIO_DEFAULT, NULL);
 883                 if (r)
 884                         return r;
 885         }
 886
 887         return r;
 888 }
 889
 890 static int sdma_v2_4_sw_fini(void *handle)
 891 {
 892         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 893         int i;
 894
 895         for (i = 0; i < adev->sdma.num_instances; i++)
 896                 amdgpu_ring_fini(&adev->sdma.instance[i].ring);
 897
 898         sdma_v2_4_free_microcode(adev);
 899         return 0;
 900 }
 901
 902 static int sdma_v2_4_hw_init(void *handle)
 903 {
 904         int r;
 905         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 906
 907         sdma_v2_4_init_golden_registers(adev);
 908
 909         r = sdma_v2_4_start(adev);
 910         if (r)
 911                 return r;
 912
 913         return r;
 914 }
 915
 916 static int sdma_v2_4_hw_fini(void *handle)
 917 {
 918         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 919
 920         sdma_v2_4_enable(adev, false);
 921
 922         return 0;
 923 }
 924
 925 static int sdma_v2_4_suspend(void *handle)
 926 {
 927         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 928
 929         return sdma_v2_4_hw_fini(adev);
 930 }
 931
 932 static int sdma_v2_4_resume(void *handle)
 933 {
 934         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 935
 936         return sdma_v2_4_hw_init(adev);
 937 }
 938
 939 static bool sdma_v2_4_is_idle(void *handle)
 940 {
 941         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 942         u32 tmp = RREG32(mmSRBM_STATUS2);
 943
 944         if (tmp & (SRBM_STATUS2__SDMA_BUSY_MASK |
 945                    SRBM_STATUS2__SDMA1_BUSY_MASK))
 946             return false;
 947
 948         return true;
 949 }
 950
 951 static int sdma_v2_4_wait_for_idle(void *handle)
 952 {
 953         unsigned i;
 954         u32 tmp;
 955         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 956
 957         for (i = 0; i < adev->usec_timeout; i++) {
 958                 tmp = RREG32(mmSRBM_STATUS2) & (SRBM_STATUS2__SDMA_BUSY_MASK |
 959                                 SRBM_STATUS2__SDMA1_BUSY_MASK);
 960
 961                 if (!tmp)
 962                         return 0;
 963                 udelay(1);
 964         }
 965         return -ETIMEDOUT;
 966 }
 967
 968 static int sdma_v2_4_soft_reset(void *handle)
 969 {
 970         u32 srbm_soft_reset = 0;
 971         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 972         u32 tmp = RREG32(mmSRBM_STATUS2);
 973
 974         if (tmp & SRBM_STATUS2__SDMA_BUSY_MASK) {
 975                 /* sdma0 */
 976                 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET);
 977                 tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 0);
 978                 WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp);
 979                 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK;
 980         }
 981         if (tmp & SRBM_STATUS2__SDMA1_BUSY_MASK) {
 982                 /* sdma1 */
 983                 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET);
 984                 tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 0);
 985                 WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp);
 986                 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK;
 987         }
 988
 989         if (srbm_soft_reset) {
 990                 tmp = RREG32(mmSRBM_SOFT_RESET);
 991                 tmp |= srbm_soft_reset;
 992                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
 993                 WREG32(mmSRBM_SOFT_RESET, tmp);
 994                 tmp = RREG32(mmSRBM_SOFT_RESET);
 995
 996                 udelay(50);
 997
 998                 tmp &= ~srbm_soft_reset;
 999                 WREG32(mmSRBM_SOFT_RESET, tmp);
1000                 tmp = RREG32(mmSRBM_SOFT_RESET);
1001
1002                 /* Wait a little for things to settle down */
1003                 udelay(50);
1004         }
1005
1006         return 0;
1007 }
1008
1009 static int sdma_v2_4_set_trap_irq_state(struct amdgpu_device *adev,
1010                                         struct amdgpu_irq_src *src,
1011                                         unsigned type,
1012                                         enum amdgpu_interrupt_state state)
1013 {
1014         u32 sdma_cntl;
1015
1016         switch (type) {
1017         case AMDGPU_SDMA_IRQ_INSTANCE0:
1018                 switch (state) {
1019                 case AMDGPU_IRQ_STATE_DISABLE:
1020                         sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1021                         sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0);
1022                         WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1023                         break;
1024                 case AMDGPU_IRQ_STATE_ENABLE:
1025                         sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1026                         sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1);
1027                         WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1028                         break;
1029                 default:
1030                         break;
1031                 }
1032                 break;
1033         case AMDGPU_SDMA_IRQ_INSTANCE1:
1034                 switch (state) {
1035                 case AMDGPU_IRQ_STATE_DISABLE:
1036                         sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1037                         sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0);
1038                         WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1039                         break;
1040                 case AMDGPU_IRQ_STATE_ENABLE:
1041                         sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1042                         sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1);
1043                         WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1044                         break;
1045                 default:
1046                         break;
1047                 }
1048                 break;
1049         default:
1050                 break;
1051         }
1052         return 0;
1053 }
1054
1055 static int sdma_v2_4_process_trap_irq(struct amdgpu_device *adev,
1056                                       struct amdgpu_irq_src *source,
1057                                       struct amdgpu_iv_entry *entry)
1058 {
1059         u8 instance_id, queue_id;
1060
1061         instance_id = (entry->ring_id & 0x3) >> 0;
1062         queue_id = (entry->ring_id & 0xc) >> 2;
1063         DRM_DEBUG("IH: SDMA trap\n");
1064         switch (instance_id) {
1065         case 0:
1066                 switch (queue_id) {
1067                 case 0:
1068                         amdgpu_fence_process(&adev->sdma.instance[0].ring);
1069                         break;
1070                 case 1:
1071                         /* XXX compute */
1072                         break;
1073                 case 2:
1074                         /* XXX compute */
1075                         break;
1076                 }
1077                 break;
1078         case 1:
1079                 switch (queue_id) {
1080                 case 0:
1081                         amdgpu_fence_process(&adev->sdma.instance[1].ring);
1082                         break;
1083                 case 1:
1084                         /* XXX compute */
1085                         break;
1086                 case 2:
1087                         /* XXX compute */
1088                         break;
1089                 }
1090                 break;
1091         }
1092         return 0;
1093 }
1094
1095 static int sdma_v2_4_process_illegal_inst_irq(struct amdgpu_device *adev,
1096                                               struct amdgpu_irq_src *source,
1097                                               struct amdgpu_iv_entry *entry)
1098 {
1099         u8 instance_id, queue_id;
1100
1101         DRM_ERROR("Illegal instruction in SDMA command stream\n");
1102         instance_id = (entry->ring_id & 0x3) >> 0;
1103         queue_id = (entry->ring_id & 0xc) >> 2;
1104
1105         if (instance_id <= 1 && queue_id == 0)
1106                 drm_sched_fault(&adev->sdma.instance[instance_id].ring.sched);
1107         return 0;
1108 }
1109
1110 static int sdma_v2_4_set_clockgating_state(void *handle,
1111                                           enum amd_clockgating_state state)
1112 {
1113         /* XXX handled via the smc on VI */
1114         return 0;
1115 }
1116
1117 static int sdma_v2_4_set_powergating_state(void *handle,
1118                                           enum amd_powergating_state state)
1119 {
1120         return 0;
1121 }
1122
1123 static const struct amd_ip_funcs sdma_v2_4_ip_funcs = {
1124         .name = "sdma_v2_4",
1125         .early_init = sdma_v2_4_early_init,
1126         .late_init = NULL,
1127         .sw_init = sdma_v2_4_sw_init,
1128         .sw_fini = sdma_v2_4_sw_fini,
1129         .hw_init = sdma_v2_4_hw_init,
1130         .hw_fini = sdma_v2_4_hw_fini,
1131         .suspend = sdma_v2_4_suspend,
1132         .resume = sdma_v2_4_resume,
1133         .is_idle = sdma_v2_4_is_idle,
1134         .wait_for_idle = sdma_v2_4_wait_for_idle,
1135         .soft_reset = sdma_v2_4_soft_reset,
1136         .set_clockgating_state = sdma_v2_4_set_clockgating_state,
1137         .set_powergating_state = sdma_v2_4_set_powergating_state,
1138 };
1139
1140 static const struct amdgpu_ring_funcs sdma_v2_4_ring_funcs = {
1141         .type = AMDGPU_RING_TYPE_SDMA,
1142         .align_mask = 0xf,
1143         .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP),
1144         .support_64bit_ptrs = false,
1145         .get_rptr = sdma_v2_4_ring_get_rptr,
1146         .get_wptr = sdma_v2_4_ring_get_wptr,
1147         .set_wptr = sdma_v2_4_ring_set_wptr,
1148         .emit_frame_size =
1149                 6 + /* sdma_v2_4_ring_emit_hdp_flush */
1150                 3 + /* hdp invalidate */
1151                 6 + /* sdma_v2_4_ring_emit_pipeline_sync */
1152                 VI_FLUSH_GPU_TLB_NUM_WREG * 3 + 6 + /* sdma_v2_4_ring_emit_vm_flush */
1153                 10 + 10 + 10, /* sdma_v2_4_ring_emit_fence x3 for user fence, vm fence */
1154         .emit_ib_size = 7 + 6, /* sdma_v2_4_ring_emit_ib */
1155         .emit_ib = sdma_v2_4_ring_emit_ib,
1156         .emit_fence = sdma_v2_4_ring_emit_fence,
1157         .emit_pipeline_sync = sdma_v2_4_ring_emit_pipeline_sync,
1158         .emit_vm_flush = sdma_v2_4_ring_emit_vm_flush,
1159         .emit_hdp_flush = sdma_v2_4_ring_emit_hdp_flush,
1160         .test_ring = sdma_v2_4_ring_test_ring,
1161         .test_ib = sdma_v2_4_ring_test_ib,
1162         .insert_nop = sdma_v2_4_ring_insert_nop,
1163         .pad_ib = sdma_v2_4_ring_pad_ib,
1164         .emit_wreg = sdma_v2_4_ring_emit_wreg,
1165 };
1166
1167 static void sdma_v2_4_set_ring_funcs(struct amdgpu_device *adev)
1168 {
1169         int i;
1170
1171         for (i = 0; i < adev->sdma.num_instances; i++) {
1172                 adev->sdma.instance[i].ring.funcs = &sdma_v2_4_ring_funcs;
1173                 adev->sdma.instance[i].ring.me = i;
1174         }
1175 }
1176
1177 static const struct amdgpu_irq_src_funcs sdma_v2_4_trap_irq_funcs = {
1178         .set = sdma_v2_4_set_trap_irq_state,
1179         .process = sdma_v2_4_process_trap_irq,
1180 };
1181
1182 static const struct amdgpu_irq_src_funcs sdma_v2_4_illegal_inst_irq_funcs = {
1183         .process = sdma_v2_4_process_illegal_inst_irq,
1184 };
1185
1186 static void sdma_v2_4_set_irq_funcs(struct amdgpu_device *adev)
1187 {
1188         adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST;
1189         adev->sdma.trap_irq.funcs = &sdma_v2_4_trap_irq_funcs;
1190         adev->sdma.illegal_inst_irq.funcs = &sdma_v2_4_illegal_inst_irq_funcs;
1191 }
1192
1193 /**
1194  * sdma_v2_4_emit_copy_buffer - copy buffer using the sDMA engine
1195  *
1196  * @ib: indirect buffer to copy to
1197  * @src_offset: src GPU address
1198  * @dst_offset: dst GPU address
1199  * @byte_count: number of bytes to xfer
1200  * @tmz: unused
1201  *
1202  * Copy GPU buffers using the DMA engine (VI).
1203  * Used by the amdgpu ttm implementation to move pages if
1204  * registered as the asic copy callback.
1205  */
1206 static void sdma_v2_4_emit_copy_buffer(struct amdgpu_ib *ib,
1207                                        uint64_t src_offset,
1208                                        uint64_t dst_offset,
1209                                        uint32_t byte_count,
1210                                        bool tmz)
1211 {
1212         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1213                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
1214         ib->ptr[ib->length_dw++] = byte_count;
1215         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1216         ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1217         ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1218         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1219         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1220 }
1221
1222 /**
1223  * sdma_v2_4_emit_fill_buffer - fill buffer using the sDMA engine
1224  *
1225  * @ib: indirect buffer to copy to
1226  * @src_data: value to write to buffer
1227  * @dst_offset: dst GPU address
1228  * @byte_count: number of bytes to xfer
1229  *
1230  * Fill GPU buffers using the DMA engine (VI).
1231  */
1232 static void sdma_v2_4_emit_fill_buffer(struct amdgpu_ib *ib,
1233                                        uint32_t src_data,
1234                                        uint64_t dst_offset,
1235                                        uint32_t byte_count)
1236 {
1237         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL);
1238         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1239         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1240         ib->ptr[ib->length_dw++] = src_data;
1241         ib->ptr[ib->length_dw++] = byte_count;
1242 }
1243
1244 static const struct amdgpu_buffer_funcs sdma_v2_4_buffer_funcs = {
1245         .copy_max_bytes = 0x1fffff,
1246         .copy_num_dw = 7,
1247         .emit_copy_buffer = sdma_v2_4_emit_copy_buffer,
1248
1249         .fill_max_bytes = 0x1fffff,
1250         .fill_num_dw = 7,
1251         .emit_fill_buffer = sdma_v2_4_emit_fill_buffer,
1252 };
1253
1254 static void sdma_v2_4_set_buffer_funcs(struct amdgpu_device *adev)
1255 {
1256         adev->mman.buffer_funcs = &sdma_v2_4_buffer_funcs;
1257         adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
1258 }
1259
1260 static const struct amdgpu_vm_pte_funcs sdma_v2_4_vm_pte_funcs = {
1261         .copy_pte_num_dw = 7,
1262         .copy_pte = sdma_v2_4_vm_copy_pte,
1263
1264         .write_pte = sdma_v2_4_vm_write_pte,
1265         .set_pte_pde = sdma_v2_4_vm_set_pte_pde,
1266 };
1267
1268 static void sdma_v2_4_set_vm_pte_funcs(struct amdgpu_device *adev)
1269 {
1270         unsigned i;
1271
1272         adev->vm_manager.vm_pte_funcs = &sdma_v2_4_vm_pte_funcs;
1273         for (i = 0; i < adev->sdma.num_instances; i++) {
1274                 adev->vm_manager.vm_pte_scheds[i] =
1275                         &adev->sdma.instance[i].ring.sched;
1276         }
1277         adev->vm_manager.vm_pte_num_scheds = adev->sdma.num_instances;
1278 }
1279
1280 const struct amdgpu_ip_block_version sdma_v2_4_ip_block =
1281 {
1282         .type = AMD_IP_BLOCK_TYPE_SDMA,
1283         .major = 2,
1284         .minor = 4,
1285         .rev = 0,
1286         .funcs = &sdma_v2_4_ip_funcs,
1287 };