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 #include <linux/firmware.h>
  25 #include <drm/drmP.h>
  26 #include "amdgpu.h"
  27 #include "amdgpu_ucode.h"
  28 #include "amdgpu_trace.h"
  29 #include "vi.h"
  30 #include "vid.h"
  31
  32 #include "oss/oss_2_4_d.h"
  33 #include "oss/oss_2_4_sh_mask.h"
  34
  35 #include "gmc/gmc_7_1_d.h"
  36 #include "gmc/gmc_7_1_sh_mask.h"
  37
  38 #include "gca/gfx_8_0_d.h"
  39 #include "gca/gfx_8_0_enum.h"
  40 #include "gca/gfx_8_0_sh_mask.h"
  41
  42 #include "bif/bif_5_0_d.h"
  43 #include "bif/bif_5_0_sh_mask.h"
  44
  45 #include "iceland_sdma_pkt_open.h"
  46
  47 static void sdma_v2_4_set_ring_funcs(struct amdgpu_device *adev);
  48 static void sdma_v2_4_set_buffer_funcs(struct amdgpu_device *adev);
  49 static void sdma_v2_4_set_vm_pte_funcs(struct amdgpu_device *adev);
  50 static void sdma_v2_4_set_irq_funcs(struct amdgpu_device *adev);
  51
  52 MODULE_FIRMWARE("amdgpu/topaz_sdma.bin");
  53 MODULE_FIRMWARE("amdgpu/topaz_sdma1.bin");
  54
  55 static const u32 sdma_offsets[SDMA_MAX_INSTANCE] =
  56 {
  57         SDMA0_REGISTER_OFFSET,
  58         SDMA1_REGISTER_OFFSET
  59 };
  60
  61 static const u32 golden_settings_iceland_a11[] =
  62 {
  63         mmSDMA0_CHICKEN_BITS, 0xfc910007, 0x00810007,
  64         mmSDMA0_CLK_CTRL, 0xff000fff, 0x00000000,
  65         mmSDMA1_CHICKEN_BITS, 0xfc910007, 0x00810007,
  66         mmSDMA1_CLK_CTRL, 0xff000fff, 0x00000000,
  67 };
  68
  69 static const u32 iceland_mgcg_cgcg_init[] =
  70 {
  71         mmSDMA0_CLK_CTRL, 0xff000ff0, 0x00000100,
  72         mmSDMA1_CLK_CTRL, 0xff000ff0, 0x00000100
  73 };
  74
  75 /*
  76  * sDMA - System DMA
  77  * Starting with CIK, the GPU has new asynchronous
  78  * DMA engines.  These engines are used for compute
  79  * and gfx.  There are two DMA engines (SDMA0, SDMA1)
  80  * and each one supports 1 ring buffer used for gfx
  81  * and 2 queues used for compute.
  82  *
  83  * The programming model is very similar to the CP
  84  * (ring buffer, IBs, etc.), but sDMA has it's own
  85  * packet format that is different from the PM4 format
  86  * used by the CP. sDMA supports copying data, writing
  87  * embedded data, solid fills, and a number of other
  88  * things.  It also has support for tiling/detiling of
  89  * buffers.
  90  */
  91
  92 static void sdma_v2_4_init_golden_registers(struct amdgpu_device *adev)
  93 {
  94         switch (adev->asic_type) {
  95         case CHIP_TOPAZ:
  96                 amdgpu_device_program_register_sequence(adev,
  97                                                         iceland_mgcg_cgcg_init,
  98                                                         ARRAY_SIZE(iceland_mgcg_cgcg_init));
  99                 amdgpu_device_program_register_sequence(adev,
 100                                                         golden_settings_iceland_a11,
 101                                                         ARRAY_SIZE(golden_settings_iceland_a11));
 102                 break;
 103         default:
 104                 break;
 105         }
 106 }
 107
 108 static void sdma_v2_4_free_microcode(struct amdgpu_device *adev)
 109 {
 110         int i;
 111         for (i = 0; i < adev->sdma.num_instances; i++) {
 112                 release_firmware(adev->sdma.instance[i].fw);
 113                 adev->sdma.instance[i].fw = NULL;
 114         }
 115 }
 116
 117 /**
 118  * sdma_v2_4_init_microcode - load ucode images from disk
 119  *
 120  * @adev: amdgpu_device pointer
 121  *
 122  * Use the firmware interface to load the ucode images into
 123  * the driver (not loaded into hw).
 124  * Returns 0 on success, error on failure.
 125  */
 126 static int sdma_v2_4_init_microcode(struct amdgpu_device *adev)
 127 {
 128         const char *chip_name;
 129         char fw_name[30];
 130         int err = 0, i;
 131         struct amdgpu_firmware_info *info = NULL;
 132         const struct common_firmware_header *header = NULL;
 133         const struct sdma_firmware_header_v1_0 *hdr;
 134
 135         DRM_DEBUG("\n");
 136
 137         switch (adev->asic_type) {
 138         case CHIP_TOPAZ:
 139                 chip_name = "topaz";
 140                 break;
 141         default: BUG();
 142         }
 143
 144         for (i = 0; i < adev->sdma.num_instances; i++) {
 145                 if (i == 0)
 146                         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma.bin", chip_name);
 147                 else
 148                         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_sdma1.bin", chip_name);
 149                 err = request_firmware(&adev->sdma.instance[i].fw, fw_name, adev->dev);
 150                 if (err)
 151                         goto out;
 152                 err = amdgpu_ucode_validate(adev->sdma.instance[i].fw);
 153                 if (err)
 154                         goto out;
 155                 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
 156                 adev->sdma.instance[i].fw_version = le32_to_cpu(hdr->header.ucode_version);
 157                 adev->sdma.instance[i].feature_version = le32_to_cpu(hdr->ucode_feature_version);
 158                 if (adev->sdma.instance[i].feature_version >= 20)
 159                         adev->sdma.instance[i].burst_nop = true;
 160
 161                 if (adev->firmware.load_type == AMDGPU_FW_LOAD_SMU) {
 162                         info = &adev->firmware.ucode[AMDGPU_UCODE_ID_SDMA0 + i];
 163                         info->ucode_id = AMDGPU_UCODE_ID_SDMA0 + i;
 164                         info->fw = adev->sdma.instance[i].fw;
 165                         header = (const struct common_firmware_header *)info->fw->data;
 166                         adev->firmware.fw_size +=
 167                                 ALIGN(le32_to_cpu(header->ucode_size_bytes), PAGE_SIZE);
 168                 }
 169         }
 170
 171 out:
 172         if (err) {
 173                 pr_err("sdma_v2_4: Failed to load firmware \"%s\"\n", fw_name);
 174                 for (i = 0; i < adev->sdma.num_instances; i++) {
 175                         release_firmware(adev->sdma.instance[i].fw);
 176                         adev->sdma.instance[i].fw = NULL;
 177                 }
 178         }
 179         return err;
 180 }
 181
 182 /**
 183  * sdma_v2_4_ring_get_rptr - get the current read pointer
 184  *
 185  * @ring: amdgpu ring pointer
 186  *
 187  * Get the current rptr from the hardware (VI+).
 188  */
 189 static uint64_t sdma_v2_4_ring_get_rptr(struct amdgpu_ring *ring)
 190 {
 191         /* XXX check if swapping is necessary on BE */
 192         return ring->adev->wb.wb[ring->rptr_offs] >> 2;
 193 }
 194
 195 /**
 196  * sdma_v2_4_ring_get_wptr - get the current write pointer
 197  *
 198  * @ring: amdgpu ring pointer
 199  *
 200  * Get the current wptr from the hardware (VI+).
 201  */
 202 static uint64_t sdma_v2_4_ring_get_wptr(struct amdgpu_ring *ring)
 203 {
 204         struct amdgpu_device *adev = ring->adev;
 205         int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1;
 206         u32 wptr = RREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me]) >> 2;
 207
 208         return wptr;
 209 }
 210
 211 /**
 212  * sdma_v2_4_ring_set_wptr - commit the write pointer
 213  *
 214  * @ring: amdgpu ring pointer
 215  *
 216  * Write the wptr back to the hardware (VI+).
 217  */
 218 static void sdma_v2_4_ring_set_wptr(struct amdgpu_ring *ring)
 219 {
 220         struct amdgpu_device *adev = ring->adev;
 221         int me = (ring == &ring->adev->sdma.instance[0].ring) ? 0 : 1;
 222
 223         WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[me], lower_32_bits(ring->wptr) << 2);
 224 }
 225
 226 static void sdma_v2_4_ring_insert_nop(struct amdgpu_ring *ring, uint32_t count)
 227 {
 228         struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring);
 229         int i;
 230
 231         for (i = 0; i < count; i++)
 232                 if (sdma && sdma->burst_nop && (i == 0))
 233                         amdgpu_ring_write(ring, ring->funcs->nop |
 234                                 SDMA_PKT_NOP_HEADER_COUNT(count - 1));
 235                 else
 236                         amdgpu_ring_write(ring, ring->funcs->nop);
 237 }
 238
 239 /**
 240  * sdma_v2_4_ring_emit_ib - Schedule an IB on the DMA engine
 241  *
 242  * @ring: amdgpu ring pointer
 243  * @ib: IB object to schedule
 244  *
 245  * Schedule an IB in the DMA ring (VI).
 246  */
 247 static void sdma_v2_4_ring_emit_ib(struct amdgpu_ring *ring,
 248                                    struct amdgpu_ib *ib,
 249                                    unsigned vmid, bool ctx_switch)
 250 {
 251         /* IB packet must end on a 8 DW boundary */
 252         sdma_v2_4_ring_insert_nop(ring, (10 - (lower_32_bits(ring->wptr) & 7)) % 8);
 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_hdp_flush_ring_emit - 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 == &ring->adev->sdma.instance[0].ring)
 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  * @fence: amdgpu fence object
 297  *
 298  * Add a DMA fence packet to the ring to write
 299  * the fence seq number and DMA trap packet to generate
 300  * an interrupt if needed (VI).
 301  */
 302 static void sdma_v2_4_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 seq,
 303                                       unsigned flags)
 304 {
 305         bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
 306         /* write the fence */
 307         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE));
 308         amdgpu_ring_write(ring, lower_32_bits(addr));
 309         amdgpu_ring_write(ring, upper_32_bits(addr));
 310         amdgpu_ring_write(ring, lower_32_bits(seq));
 311
 312         /* optionally write high bits as well */
 313         if (write64bit) {
 314                 addr += 4;
 315                 amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE));
 316                 amdgpu_ring_write(ring, lower_32_bits(addr));
 317                 amdgpu_ring_write(ring, upper_32_bits(addr));
 318                 amdgpu_ring_write(ring, upper_32_bits(seq));
 319         }
 320
 321         /* generate an interrupt */
 322         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_TRAP));
 323         amdgpu_ring_write(ring, SDMA_PKT_TRAP_INT_CONTEXT_INT_CONTEXT(0));
 324 }
 325
 326 /**
 327  * sdma_v2_4_gfx_stop - stop the gfx async dma engines
 328  *
 329  * @adev: amdgpu_device pointer
 330  *
 331  * Stop the gfx async dma ring buffers (VI).
 332  */
 333 static void sdma_v2_4_gfx_stop(struct amdgpu_device *adev)
 334 {
 335         struct amdgpu_ring *sdma0 = &adev->sdma.instance[0].ring;
 336         struct amdgpu_ring *sdma1 = &adev->sdma.instance[1].ring;
 337         u32 rb_cntl, ib_cntl;
 338         int i;
 339
 340         if ((adev->mman.buffer_funcs_ring == sdma0) ||
 341             (adev->mman.buffer_funcs_ring == sdma1))
 342                 amdgpu_ttm_set_buffer_funcs_status(adev, false);
 343
 344         for (i = 0; i < adev->sdma.num_instances; i++) {
 345                 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]);
 346                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 0);
 347                 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
 348                 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]);
 349                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 0);
 350                 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl);
 351         }
 352         sdma0->ready = false;
 353         sdma1->ready = false;
 354 }
 355
 356 /**
 357  * sdma_v2_4_rlc_stop - stop the compute async dma engines
 358  *
 359  * @adev: amdgpu_device pointer
 360  *
 361  * Stop the compute async dma queues (VI).
 362  */
 363 static void sdma_v2_4_rlc_stop(struct amdgpu_device *adev)
 364 {
 365         /* XXX todo */
 366 }
 367
 368 /**
 369  * sdma_v2_4_enable - stop the async dma engines
 370  *
 371  * @adev: amdgpu_device pointer
 372  * @enable: enable/disable the DMA MEs.
 373  *
 374  * Halt or unhalt the async dma engines (VI).
 375  */
 376 static void sdma_v2_4_enable(struct amdgpu_device *adev, bool enable)
 377 {
 378         u32 f32_cntl;
 379         int i;
 380
 381         if (!enable) {
 382                 sdma_v2_4_gfx_stop(adev);
 383                 sdma_v2_4_rlc_stop(adev);
 384         }
 385
 386         for (i = 0; i < adev->sdma.num_instances; i++) {
 387                 f32_cntl = RREG32(mmSDMA0_F32_CNTL + sdma_offsets[i]);
 388                 if (enable)
 389                         f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 0);
 390                 else
 391                         f32_cntl = REG_SET_FIELD(f32_cntl, SDMA0_F32_CNTL, HALT, 1);
 392                 WREG32(mmSDMA0_F32_CNTL + sdma_offsets[i], f32_cntl);
 393         }
 394 }
 395
 396 /**
 397  * sdma_v2_4_gfx_resume - setup and start the async dma engines
 398  *
 399  * @adev: amdgpu_device pointer
 400  *
 401  * Set up the gfx DMA ring buffers and enable them (VI).
 402  * Returns 0 for success, error for failure.
 403  */
 404 static int sdma_v2_4_gfx_resume(struct amdgpu_device *adev)
 405 {
 406         struct amdgpu_ring *ring;
 407         u32 rb_cntl, ib_cntl;
 408         u32 rb_bufsz;
 409         u32 wb_offset;
 410         int i, j, r;
 411
 412         for (i = 0; i < adev->sdma.num_instances; i++) {
 413                 ring = &adev->sdma.instance[i].ring;
 414                 wb_offset = (ring->rptr_offs * 4);
 415
 416                 mutex_lock(&adev->srbm_mutex);
 417                 for (j = 0; j < 16; j++) {
 418                         vi_srbm_select(adev, 0, 0, 0, j);
 419                         /* SDMA GFX */
 420                         WREG32(mmSDMA0_GFX_VIRTUAL_ADDR + sdma_offsets[i], 0);
 421                         WREG32(mmSDMA0_GFX_APE1_CNTL + sdma_offsets[i], 0);
 422                 }
 423                 vi_srbm_select(adev, 0, 0, 0, 0);
 424                 mutex_unlock(&adev->srbm_mutex);
 425
 426                 WREG32(mmSDMA0_TILING_CONFIG + sdma_offsets[i],
 427                        adev->gfx.config.gb_addr_config & 0x70);
 428
 429                 WREG32(mmSDMA0_SEM_WAIT_FAIL_TIMER_CNTL + sdma_offsets[i], 0);
 430
 431                 /* Set ring buffer size in dwords */
 432                 rb_bufsz = order_base_2(ring->ring_size / 4);
 433                 rb_cntl = RREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i]);
 434                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SIZE, rb_bufsz);
 435 #ifdef __BIG_ENDIAN
 436                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_SWAP_ENABLE, 1);
 437                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL,
 438                                         RPTR_WRITEBACK_SWAP_ENABLE, 1);
 439 #endif
 440                 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
 441
 442                 /* Initialize the ring buffer's read and write pointers */
 443                 WREG32(mmSDMA0_GFX_RB_RPTR + sdma_offsets[i], 0);
 444                 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], 0);
 445                 WREG32(mmSDMA0_GFX_IB_RPTR + sdma_offsets[i], 0);
 446                 WREG32(mmSDMA0_GFX_IB_OFFSET + sdma_offsets[i], 0);
 447
 448                 /* set the wb address whether it's enabled or not */
 449                 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_HI + sdma_offsets[i],
 450                        upper_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFF);
 451                 WREG32(mmSDMA0_GFX_RB_RPTR_ADDR_LO + sdma_offsets[i],
 452                        lower_32_bits(adev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC);
 453
 454                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RPTR_WRITEBACK_ENABLE, 1);
 455
 456                 WREG32(mmSDMA0_GFX_RB_BASE + sdma_offsets[i], ring->gpu_addr >> 8);
 457                 WREG32(mmSDMA0_GFX_RB_BASE_HI + sdma_offsets[i], ring->gpu_addr >> 40);
 458
 459                 ring->wptr = 0;
 460                 WREG32(mmSDMA0_GFX_RB_WPTR + sdma_offsets[i], lower_32_bits(ring->wptr) << 2);
 461
 462                 /* enable DMA RB */
 463                 rb_cntl = REG_SET_FIELD(rb_cntl, SDMA0_GFX_RB_CNTL, RB_ENABLE, 1);
 464                 WREG32(mmSDMA0_GFX_RB_CNTL + sdma_offsets[i], rb_cntl);
 465
 466                 ib_cntl = RREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i]);
 467                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_ENABLE, 1);
 468 #ifdef __BIG_ENDIAN
 469                 ib_cntl = REG_SET_FIELD(ib_cntl, SDMA0_GFX_IB_CNTL, IB_SWAP_ENABLE, 1);
 470 #endif
 471                 /* enable DMA IBs */
 472                 WREG32(mmSDMA0_GFX_IB_CNTL + sdma_offsets[i], ib_cntl);
 473
 474                 ring->ready = true;
 475         }
 476
 477         sdma_v2_4_enable(adev, true);
 478         for (i = 0; i < adev->sdma.num_instances; i++) {
 479                 ring = &adev->sdma.instance[i].ring;
 480                 r = amdgpu_ring_test_ring(ring);
 481                 if (r) {
 482                         ring->ready = false;
 483                         return r;
 484                 }
 485
 486                 if (adev->mman.buffer_funcs_ring == ring)
 487                         amdgpu_ttm_set_buffer_funcs_status(adev, true);
 488         }
 489
 490         return 0;
 491 }
 492
 493 /**
 494  * sdma_v2_4_rlc_resume - setup and start the async dma engines
 495  *
 496  * @adev: amdgpu_device pointer
 497  *
 498  * Set up the compute DMA queues and enable them (VI).
 499  * Returns 0 for success, error for failure.
 500  */
 501 static int sdma_v2_4_rlc_resume(struct amdgpu_device *adev)
 502 {
 503         /* XXX todo */
 504         return 0;
 505 }
 506
 507 /**
 508  * sdma_v2_4_load_microcode - load the sDMA ME ucode
 509  *
 510  * @adev: amdgpu_device pointer
 511  *
 512  * Loads the sDMA0/1 ucode.
 513  * Returns 0 for success, -EINVAL if the ucode is not available.
 514  */
 515 static int sdma_v2_4_load_microcode(struct amdgpu_device *adev)
 516 {
 517         const struct sdma_firmware_header_v1_0 *hdr;
 518         const __le32 *fw_data;
 519         u32 fw_size;
 520         int i, j;
 521
 522         /* halt the MEs */
 523         sdma_v2_4_enable(adev, false);
 524
 525         for (i = 0; i < adev->sdma.num_instances; i++) {
 526                 if (!adev->sdma.instance[i].fw)
 527                         return -EINVAL;
 528                 hdr = (const struct sdma_firmware_header_v1_0 *)adev->sdma.instance[i].fw->data;
 529                 amdgpu_ucode_print_sdma_hdr(&hdr->header);
 530                 fw_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 531                 fw_data = (const __le32 *)
 532                         (adev->sdma.instance[i].fw->data +
 533                          le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 534                 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], 0);
 535                 for (j = 0; j < fw_size; j++)
 536                         WREG32(mmSDMA0_UCODE_DATA + sdma_offsets[i], le32_to_cpup(fw_data++));
 537                 WREG32(mmSDMA0_UCODE_ADDR + sdma_offsets[i], adev->sdma.instance[i].fw_version);
 538         }
 539
 540         return 0;
 541 }
 542
 543 /**
 544  * sdma_v2_4_start - setup and start the async dma engines
 545  *
 546  * @adev: amdgpu_device pointer
 547  *
 548  * Set up the DMA engines and enable them (VI).
 549  * Returns 0 for success, error for failure.
 550  */
 551 static int sdma_v2_4_start(struct amdgpu_device *adev)
 552 {
 553         int r;
 554
 555
 556         if (adev->firmware.load_type == AMDGPU_FW_LOAD_DIRECT) {
 557                 r = sdma_v2_4_load_microcode(adev);
 558                 if (r)
 559                         return r;
 560         }
 561
 562         /* halt the engine before programing */
 563         sdma_v2_4_enable(adev, false);
 564
 565         /* start the gfx rings and rlc compute queues */
 566         r = sdma_v2_4_gfx_resume(adev);
 567         if (r)
 568                 return r;
 569         r = sdma_v2_4_rlc_resume(adev);
 570         if (r)
 571                 return r;
 572
 573         return 0;
 574 }
 575
 576 /**
 577  * sdma_v2_4_ring_test_ring - simple async dma engine test
 578  *
 579  * @ring: amdgpu_ring structure holding ring information
 580  *
 581  * Test the DMA engine by writing using it to write an
 582  * value to memory. (VI).
 583  * Returns 0 for success, error for failure.
 584  */
 585 static int sdma_v2_4_ring_test_ring(struct amdgpu_ring *ring)
 586 {
 587         struct amdgpu_device *adev = ring->adev;
 588         unsigned i;
 589         unsigned index;
 590         int r;
 591         u32 tmp;
 592         u64 gpu_addr;
 593
 594         r = amdgpu_device_wb_get(adev, &index);
 595         if (r) {
 596                 dev_err(adev->dev, "(%d) failed to allocate wb slot\n", r);
 597                 return r;
 598         }
 599
 600         gpu_addr = adev->wb.gpu_addr + (index * 4);
 601         tmp = 0xCAFEDEAD;
 602         adev->wb.wb[index] = cpu_to_le32(tmp);
 603
 604         r = amdgpu_ring_alloc(ring, 5);
 605         if (r) {
 606                 DRM_ERROR("amdgpu: dma failed to lock ring %d (%d).\n", ring->idx, r);
 607                 amdgpu_device_wb_free(adev, index);
 608                 return r;
 609         }
 610
 611         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 612                           SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR));
 613         amdgpu_ring_write(ring, lower_32_bits(gpu_addr));
 614         amdgpu_ring_write(ring, upper_32_bits(gpu_addr));
 615         amdgpu_ring_write(ring, SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1));
 616         amdgpu_ring_write(ring, 0xDEADBEEF);
 617         amdgpu_ring_commit(ring);
 618
 619         for (i = 0; i < adev->usec_timeout; i++) {
 620                 tmp = le32_to_cpu(adev->wb.wb[index]);
 621                 if (tmp == 0xDEADBEEF)
 622                         break;
 623                 DRM_UDELAY(1);
 624         }
 625
 626         if (i < adev->usec_timeout) {
 627                 DRM_DEBUG("ring test on %d succeeded in %d usecs\n", ring->idx, i);
 628         } else {
 629                 DRM_ERROR("amdgpu: ring %d test failed (0x%08X)\n",
 630                           ring->idx, tmp);
 631                 r = -EINVAL;
 632         }
 633         amdgpu_device_wb_free(adev, index);
 634
 635         return r;
 636 }
 637
 638 /**
 639  * sdma_v2_4_ring_test_ib - test an IB on the DMA engine
 640  *
 641  * @ring: amdgpu_ring structure holding ring information
 642  *
 643  * Test a simple IB in the DMA ring (VI).
 644  * Returns 0 on success, error on failure.
 645  */
 646 static int sdma_v2_4_ring_test_ib(struct amdgpu_ring *ring, long timeout)
 647 {
 648         struct amdgpu_device *adev = ring->adev;
 649         struct amdgpu_ib ib;
 650         struct dma_fence *f = NULL;
 651         unsigned index;
 652         u32 tmp = 0;
 653         u64 gpu_addr;
 654         long r;
 655
 656         r = amdgpu_device_wb_get(adev, &index);
 657         if (r) {
 658                 dev_err(adev->dev, "(%ld) failed to allocate wb slot\n", r);
 659                 return r;
 660         }
 661
 662         gpu_addr = adev->wb.gpu_addr + (index * 4);
 663         tmp = 0xCAFEDEAD;
 664         adev->wb.wb[index] = cpu_to_le32(tmp);
 665         memset(&ib, 0, sizeof(ib));
 666         r = amdgpu_ib_get(adev, NULL, 256, &ib);
 667         if (r) {
 668                 DRM_ERROR("amdgpu: failed to get ib (%ld).\n", r);
 669                 goto err0;
 670         }
 671
 672         ib.ptr[0] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 673                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
 674         ib.ptr[1] = lower_32_bits(gpu_addr);
 675         ib.ptr[2] = upper_32_bits(gpu_addr);
 676         ib.ptr[3] = SDMA_PKT_WRITE_UNTILED_DW_3_COUNT(1);
 677         ib.ptr[4] = 0xDEADBEEF;
 678         ib.ptr[5] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
 679         ib.ptr[6] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
 680         ib.ptr[7] = SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
 681         ib.length_dw = 8;
 682
 683         r = amdgpu_ib_schedule(ring, 1, &ib, NULL, &f);
 684         if (r)
 685                 goto err1;
 686
 687         r = dma_fence_wait_timeout(f, false, timeout);
 688         if (r == 0) {
 689                 DRM_ERROR("amdgpu: IB test timed out\n");
 690                 r = -ETIMEDOUT;
 691                 goto err1;
 692         } else if (r < 0) {
 693                 DRM_ERROR("amdgpu: fence wait failed (%ld).\n", r);
 694                 goto err1;
 695         }
 696         tmp = le32_to_cpu(adev->wb.wb[index]);
 697         if (tmp == 0xDEADBEEF) {
 698                 DRM_DEBUG("ib test on ring %d succeeded\n", ring->idx);
 699                 r = 0;
 700         } else {
 701                 DRM_ERROR("amdgpu: ib test failed (0x%08X)\n", tmp);
 702                 r = -EINVAL;
 703         }
 704
 705 err1:
 706         amdgpu_ib_free(adev, &ib, NULL);
 707         dma_fence_put(f);
 708 err0:
 709         amdgpu_device_wb_free(adev, index);
 710         return r;
 711 }
 712
 713 /**
 714  * sdma_v2_4_vm_copy_pte - update PTEs by copying them from the GART
 715  *
 716  * @ib: indirect buffer to fill with commands
 717  * @pe: addr of the page entry
 718  * @src: src addr to copy from
 719  * @count: number of page entries to update
 720  *
 721  * Update PTEs by copying them from the GART using sDMA (CIK).
 722  */
 723 static void sdma_v2_4_vm_copy_pte(struct amdgpu_ib *ib,
 724                                   uint64_t pe, uint64_t src,
 725                                   unsigned count)
 726 {
 727         unsigned bytes = count * 8;
 728
 729         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
 730                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
 731         ib->ptr[ib->length_dw++] = bytes;
 732         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
 733         ib->ptr[ib->length_dw++] = lower_32_bits(src);
 734         ib->ptr[ib->length_dw++] = upper_32_bits(src);
 735         ib->ptr[ib->length_dw++] = lower_32_bits(pe);
 736         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
 737 }
 738
 739 /**
 740  * sdma_v2_4_vm_write_pte - update PTEs by writing them manually
 741  *
 742  * @ib: indirect buffer to fill with commands
 743  * @pe: addr of the page entry
 744  * @value: dst addr to write into pe
 745  * @count: number of page entries to update
 746  * @incr: increase next addr by incr bytes
 747  *
 748  * Update PTEs by writing them manually using sDMA (CIK).
 749  */
 750 static void sdma_v2_4_vm_write_pte(struct amdgpu_ib *ib, uint64_t pe,
 751                                    uint64_t value, unsigned count,
 752                                    uint32_t incr)
 753 {
 754         unsigned ndw = count * 2;
 755
 756         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_WRITE) |
 757                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_WRITE_LINEAR);
 758         ib->ptr[ib->length_dw++] = pe;
 759         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
 760         ib->ptr[ib->length_dw++] = ndw;
 761         for (; ndw > 0; ndw -= 2) {
 762                 ib->ptr[ib->length_dw++] = lower_32_bits(value);
 763                 ib->ptr[ib->length_dw++] = upper_32_bits(value);
 764                 value += incr;
 765         }
 766 }
 767
 768 /**
 769  * sdma_v2_4_vm_set_pte_pde - update the page tables using sDMA
 770  *
 771  * @ib: indirect buffer to fill with commands
 772  * @pe: addr of the page entry
 773  * @addr: dst addr to write into pe
 774  * @count: number of page entries to update
 775  * @incr: increase next addr by incr bytes
 776  * @flags: access flags
 777  *
 778  * Update the page tables using sDMA (CIK).
 779  */
 780 static void sdma_v2_4_vm_set_pte_pde(struct amdgpu_ib *ib, uint64_t pe,
 781                                      uint64_t addr, unsigned count,
 782                                      uint32_t incr, uint64_t flags)
 783 {
 784         /* for physically contiguous pages (vram) */
 785         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_GEN_PTEPDE);
 786         ib->ptr[ib->length_dw++] = lower_32_bits(pe); /* dst addr */
 787         ib->ptr[ib->length_dw++] = upper_32_bits(pe);
 788         ib->ptr[ib->length_dw++] = lower_32_bits(flags); /* mask */
 789         ib->ptr[ib->length_dw++] = upper_32_bits(flags);
 790         ib->ptr[ib->length_dw++] = lower_32_bits(addr); /* value */
 791         ib->ptr[ib->length_dw++] = upper_32_bits(addr);
 792         ib->ptr[ib->length_dw++] = incr; /* increment size */
 793         ib->ptr[ib->length_dw++] = 0;
 794         ib->ptr[ib->length_dw++] = count; /* number of entries */
 795 }
 796
 797 /**
 798  * sdma_v2_4_ring_pad_ib - pad the IB to the required number of dw
 799  *
 800  * @ib: indirect buffer to fill with padding
 801  *
 802  */
 803 static void sdma_v2_4_ring_pad_ib(struct amdgpu_ring *ring, struct amdgpu_ib *ib)
 804 {
 805         struct amdgpu_sdma_instance *sdma = amdgpu_get_sdma_instance(ring);
 806         u32 pad_count;
 807         int i;
 808
 809         pad_count = (8 - (ib->length_dw & 0x7)) % 8;
 810         for (i = 0; i < pad_count; i++)
 811                 if (sdma && sdma->burst_nop && (i == 0))
 812                         ib->ptr[ib->length_dw++] =
 813                                 SDMA_PKT_HEADER_OP(SDMA_OP_NOP) |
 814                                 SDMA_PKT_NOP_HEADER_COUNT(pad_count - 1);
 815                 else
 816                         ib->ptr[ib->length_dw++] =
 817                                 SDMA_PKT_HEADER_OP(SDMA_OP_NOP);
 818 }
 819
 820 /**
 821  * sdma_v2_4_ring_emit_pipeline_sync - sync the pipeline
 822  *
 823  * @ring: amdgpu_ring pointer
 824  *
 825  * Make sure all previous operations are completed (CIK).
 826  */
 827 static void sdma_v2_4_ring_emit_pipeline_sync(struct amdgpu_ring *ring)
 828 {
 829         uint32_t seq = ring->fence_drv.sync_seq;
 830         uint64_t addr = ring->fence_drv.gpu_addr;
 831
 832         /* wait for idle */
 833         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
 834                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
 835                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3) | /* equal */
 836                           SDMA_PKT_POLL_REGMEM_HEADER_MEM_POLL(1));
 837         amdgpu_ring_write(ring, addr & 0xfffffffc);
 838         amdgpu_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
 839         amdgpu_ring_write(ring, seq); /* reference */
 840         amdgpu_ring_write(ring, 0xfffffff); /* mask */
 841         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
 842                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(4)); /* retry count, poll interval */
 843 }
 844
 845 /**
 846  * sdma_v2_4_ring_emit_vm_flush - cik vm flush using sDMA
 847  *
 848  * @ring: amdgpu_ring pointer
 849  * @vm: amdgpu_vm pointer
 850  *
 851  * Update the page table base and flush the VM TLB
 852  * using sDMA (VI).
 853  */
 854 static void sdma_v2_4_ring_emit_vm_flush(struct amdgpu_ring *ring,
 855                                          unsigned vmid, uint64_t pd_addr)
 856 {
 857         amdgpu_gmc_emit_flush_gpu_tlb(ring, vmid, pd_addr);
 858
 859         /* wait for flush */
 860         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) |
 861                           SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) |
 862                           SDMA_PKT_POLL_REGMEM_HEADER_FUNC(0)); /* always */
 863         amdgpu_ring_write(ring, mmVM_INVALIDATE_REQUEST << 2);
 864         amdgpu_ring_write(ring, 0);
 865         amdgpu_ring_write(ring, 0); /* reference */
 866         amdgpu_ring_write(ring, 0); /* mask */
 867         amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) |
 868                           SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
 869 }
 870
 871 static void sdma_v2_4_ring_emit_wreg(struct amdgpu_ring *ring,
 872                                      uint32_t reg, uint32_t val)
 873 {
 874         amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
 875                           SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
 876         amdgpu_ring_write(ring, reg);
 877         amdgpu_ring_write(ring, val);
 878 }
 879
 880 static int sdma_v2_4_early_init(void *handle)
 881 {
 882         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 883
 884         adev->sdma.num_instances = SDMA_MAX_INSTANCE;
 885
 886         sdma_v2_4_set_ring_funcs(adev);
 887         sdma_v2_4_set_buffer_funcs(adev);
 888         sdma_v2_4_set_vm_pte_funcs(adev);
 889         sdma_v2_4_set_irq_funcs(adev);
 890
 891         return 0;
 892 }
 893
 894 static int sdma_v2_4_sw_init(void *handle)
 895 {
 896         struct amdgpu_ring *ring;
 897         int r, i;
 898         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 899
 900         /* SDMA trap event */
 901         r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 224,
 902                               &adev->sdma.trap_irq);
 903         if (r)
 904                 return r;
 905
 906         /* SDMA Privileged inst */
 907         r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 241,
 908                               &adev->sdma.illegal_inst_irq);
 909         if (r)
 910                 return r;
 911
 912         /* SDMA Privileged inst */
 913         r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, 247,
 914                               &adev->sdma.illegal_inst_irq);
 915         if (r)
 916                 return r;
 917
 918         r = sdma_v2_4_init_microcode(adev);
 919         if (r) {
 920                 DRM_ERROR("Failed to load sdma firmware!\n");
 921                 return r;
 922         }
 923
 924         for (i = 0; i < adev->sdma.num_instances; i++) {
 925                 ring = &adev->sdma.instance[i].ring;
 926                 ring->ring_obj = NULL;
 927                 ring->use_doorbell = false;
 928                 sprintf(ring->name, "sdma%d", i);
 929                 r = amdgpu_ring_init(adev, ring, 1024,
 930                                      &adev->sdma.trap_irq,
 931                                      (i == 0) ?
 932                                      AMDGPU_SDMA_IRQ_TRAP0 :
 933                                      AMDGPU_SDMA_IRQ_TRAP1);
 934                 if (r)
 935                         return r;
 936         }
 937
 938         return r;
 939 }
 940
 941 static int sdma_v2_4_sw_fini(void *handle)
 942 {
 943         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 944         int i;
 945
 946         for (i = 0; i < adev->sdma.num_instances; i++)
 947                 amdgpu_ring_fini(&adev->sdma.instance[i].ring);
 948
 949         sdma_v2_4_free_microcode(adev);
 950         return 0;
 951 }
 952
 953 static int sdma_v2_4_hw_init(void *handle)
 954 {
 955         int r;
 956         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 957
 958         sdma_v2_4_init_golden_registers(adev);
 959
 960         r = sdma_v2_4_start(adev);
 961         if (r)
 962                 return r;
 963
 964         return r;
 965 }
 966
 967 static int sdma_v2_4_hw_fini(void *handle)
 968 {
 969         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 970
 971         sdma_v2_4_enable(adev, false);
 972
 973         return 0;
 974 }
 975
 976 static int sdma_v2_4_suspend(void *handle)
 977 {
 978         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 979
 980         return sdma_v2_4_hw_fini(adev);
 981 }
 982
 983 static int sdma_v2_4_resume(void *handle)
 984 {
 985         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 986
 987         return sdma_v2_4_hw_init(adev);
 988 }
 989
 990 static bool sdma_v2_4_is_idle(void *handle)
 991 {
 992         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 993         u32 tmp = RREG32(mmSRBM_STATUS2);
 994
 995         if (tmp & (SRBM_STATUS2__SDMA_BUSY_MASK |
 996                    SRBM_STATUS2__SDMA1_BUSY_MASK))
 997             return false;
 998
 999         return true;
1000 }
1001
1002 static int sdma_v2_4_wait_for_idle(void *handle)
1003 {
1004         unsigned i;
1005         u32 tmp;
1006         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1007
1008         for (i = 0; i < adev->usec_timeout; i++) {
1009                 tmp = RREG32(mmSRBM_STATUS2) & (SRBM_STATUS2__SDMA_BUSY_MASK |
1010                                 SRBM_STATUS2__SDMA1_BUSY_MASK);
1011
1012                 if (!tmp)
1013                         return 0;
1014                 udelay(1);
1015         }
1016         return -ETIMEDOUT;
1017 }
1018
1019 static int sdma_v2_4_soft_reset(void *handle)
1020 {
1021         u32 srbm_soft_reset = 0;
1022         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1023         u32 tmp = RREG32(mmSRBM_STATUS2);
1024
1025         if (tmp & SRBM_STATUS2__SDMA_BUSY_MASK) {
1026                 /* sdma0 */
1027                 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET);
1028                 tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 0);
1029                 WREG32(mmSDMA0_F32_CNTL + SDMA0_REGISTER_OFFSET, tmp);
1030                 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA_MASK;
1031         }
1032         if (tmp & SRBM_STATUS2__SDMA1_BUSY_MASK) {
1033                 /* sdma1 */
1034                 tmp = RREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET);
1035                 tmp = REG_SET_FIELD(tmp, SDMA0_F32_CNTL, HALT, 0);
1036                 WREG32(mmSDMA0_F32_CNTL + SDMA1_REGISTER_OFFSET, tmp);
1037                 srbm_soft_reset |= SRBM_SOFT_RESET__SOFT_RESET_SDMA1_MASK;
1038         }
1039
1040         if (srbm_soft_reset) {
1041                 tmp = RREG32(mmSRBM_SOFT_RESET);
1042                 tmp |= srbm_soft_reset;
1043                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1044                 WREG32(mmSRBM_SOFT_RESET, tmp);
1045                 tmp = RREG32(mmSRBM_SOFT_RESET);
1046
1047                 udelay(50);
1048
1049                 tmp &= ~srbm_soft_reset;
1050                 WREG32(mmSRBM_SOFT_RESET, tmp);
1051                 tmp = RREG32(mmSRBM_SOFT_RESET);
1052
1053                 /* Wait a little for things to settle down */
1054                 udelay(50);
1055         }
1056
1057         return 0;
1058 }
1059
1060 static int sdma_v2_4_set_trap_irq_state(struct amdgpu_device *adev,
1061                                         struct amdgpu_irq_src *src,
1062                                         unsigned type,
1063                                         enum amdgpu_interrupt_state state)
1064 {
1065         u32 sdma_cntl;
1066
1067         switch (type) {
1068         case AMDGPU_SDMA_IRQ_TRAP0:
1069                 switch (state) {
1070                 case AMDGPU_IRQ_STATE_DISABLE:
1071                         sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1072                         sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0);
1073                         WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1074                         break;
1075                 case AMDGPU_IRQ_STATE_ENABLE:
1076                         sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET);
1077                         sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1);
1078                         WREG32(mmSDMA0_CNTL + SDMA0_REGISTER_OFFSET, sdma_cntl);
1079                         break;
1080                 default:
1081                         break;
1082                 }
1083                 break;
1084         case AMDGPU_SDMA_IRQ_TRAP1:
1085                 switch (state) {
1086                 case AMDGPU_IRQ_STATE_DISABLE:
1087                         sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1088                         sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 0);
1089                         WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1090                         break;
1091                 case AMDGPU_IRQ_STATE_ENABLE:
1092                         sdma_cntl = RREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET);
1093                         sdma_cntl = REG_SET_FIELD(sdma_cntl, SDMA0_CNTL, TRAP_ENABLE, 1);
1094                         WREG32(mmSDMA0_CNTL + SDMA1_REGISTER_OFFSET, sdma_cntl);
1095                         break;
1096                 default:
1097                         break;
1098                 }
1099                 break;
1100         default:
1101                 break;
1102         }
1103         return 0;
1104 }
1105
1106 static int sdma_v2_4_process_trap_irq(struct amdgpu_device *adev,
1107                                       struct amdgpu_irq_src *source,
1108                                       struct amdgpu_iv_entry *entry)
1109 {
1110         u8 instance_id, queue_id;
1111
1112         instance_id = (entry->ring_id & 0x3) >> 0;
1113         queue_id = (entry->ring_id & 0xc) >> 2;
1114         DRM_DEBUG("IH: SDMA trap\n");
1115         switch (instance_id) {
1116         case 0:
1117                 switch (queue_id) {
1118                 case 0:
1119                         amdgpu_fence_process(&adev->sdma.instance[0].ring);
1120                         break;
1121                 case 1:
1122                         /* XXX compute */
1123                         break;
1124                 case 2:
1125                         /* XXX compute */
1126                         break;
1127                 }
1128                 break;
1129         case 1:
1130                 switch (queue_id) {
1131                 case 0:
1132                         amdgpu_fence_process(&adev->sdma.instance[1].ring);
1133                         break;
1134                 case 1:
1135                         /* XXX compute */
1136                         break;
1137                 case 2:
1138                         /* XXX compute */
1139                         break;
1140                 }
1141                 break;
1142         }
1143         return 0;
1144 }
1145
1146 static int sdma_v2_4_process_illegal_inst_irq(struct amdgpu_device *adev,
1147                                               struct amdgpu_irq_src *source,
1148                                               struct amdgpu_iv_entry *entry)
1149 {
1150         DRM_ERROR("Illegal instruction in SDMA command stream\n");
1151         schedule_work(&adev->reset_work);
1152         return 0;
1153 }
1154
1155 static int sdma_v2_4_set_clockgating_state(void *handle,
1156                                           enum amd_clockgating_state state)
1157 {
1158         /* XXX handled via the smc on VI */
1159         return 0;
1160 }
1161
1162 static int sdma_v2_4_set_powergating_state(void *handle,
1163                                           enum amd_powergating_state state)
1164 {
1165         return 0;
1166 }
1167
1168 static const struct amd_ip_funcs sdma_v2_4_ip_funcs = {
1169         .name = "sdma_v2_4",
1170         .early_init = sdma_v2_4_early_init,
1171         .late_init = NULL,
1172         .sw_init = sdma_v2_4_sw_init,
1173         .sw_fini = sdma_v2_4_sw_fini,
1174         .hw_init = sdma_v2_4_hw_init,
1175         .hw_fini = sdma_v2_4_hw_fini,
1176         .suspend = sdma_v2_4_suspend,
1177         .resume = sdma_v2_4_resume,
1178         .is_idle = sdma_v2_4_is_idle,
1179         .wait_for_idle = sdma_v2_4_wait_for_idle,
1180         .soft_reset = sdma_v2_4_soft_reset,
1181         .set_clockgating_state = sdma_v2_4_set_clockgating_state,
1182         .set_powergating_state = sdma_v2_4_set_powergating_state,
1183 };
1184
1185 static const struct amdgpu_ring_funcs sdma_v2_4_ring_funcs = {
1186         .type = AMDGPU_RING_TYPE_SDMA,
1187         .align_mask = 0xf,
1188         .nop = SDMA_PKT_NOP_HEADER_OP(SDMA_OP_NOP),
1189         .support_64bit_ptrs = false,
1190         .get_rptr = sdma_v2_4_ring_get_rptr,
1191         .get_wptr = sdma_v2_4_ring_get_wptr,
1192         .set_wptr = sdma_v2_4_ring_set_wptr,
1193         .emit_frame_size =
1194                 6 + /* sdma_v2_4_ring_emit_hdp_flush */
1195                 3 + /* hdp invalidate */
1196                 6 + /* sdma_v2_4_ring_emit_pipeline_sync */
1197                 VI_FLUSH_GPU_TLB_NUM_WREG * 3 + 6 + /* sdma_v2_4_ring_emit_vm_flush */
1198                 10 + 10 + 10, /* sdma_v2_4_ring_emit_fence x3 for user fence, vm fence */
1199         .emit_ib_size = 7 + 6, /* sdma_v2_4_ring_emit_ib */
1200         .emit_ib = sdma_v2_4_ring_emit_ib,
1201         .emit_fence = sdma_v2_4_ring_emit_fence,
1202         .emit_pipeline_sync = sdma_v2_4_ring_emit_pipeline_sync,
1203         .emit_vm_flush = sdma_v2_4_ring_emit_vm_flush,
1204         .emit_hdp_flush = sdma_v2_4_ring_emit_hdp_flush,
1205         .test_ring = sdma_v2_4_ring_test_ring,
1206         .test_ib = sdma_v2_4_ring_test_ib,
1207         .insert_nop = sdma_v2_4_ring_insert_nop,
1208         .pad_ib = sdma_v2_4_ring_pad_ib,
1209         .emit_wreg = sdma_v2_4_ring_emit_wreg,
1210 };
1211
1212 static void sdma_v2_4_set_ring_funcs(struct amdgpu_device *adev)
1213 {
1214         int i;
1215
1216         for (i = 0; i < adev->sdma.num_instances; i++)
1217                 adev->sdma.instance[i].ring.funcs = &sdma_v2_4_ring_funcs;
1218 }
1219
1220 static const struct amdgpu_irq_src_funcs sdma_v2_4_trap_irq_funcs = {
1221         .set = sdma_v2_4_set_trap_irq_state,
1222         .process = sdma_v2_4_process_trap_irq,
1223 };
1224
1225 static const struct amdgpu_irq_src_funcs sdma_v2_4_illegal_inst_irq_funcs = {
1226         .process = sdma_v2_4_process_illegal_inst_irq,
1227 };
1228
1229 static void sdma_v2_4_set_irq_funcs(struct amdgpu_device *adev)
1230 {
1231         adev->sdma.trap_irq.num_types = AMDGPU_SDMA_IRQ_LAST;
1232         adev->sdma.trap_irq.funcs = &sdma_v2_4_trap_irq_funcs;
1233         adev->sdma.illegal_inst_irq.funcs = &sdma_v2_4_illegal_inst_irq_funcs;
1234 }
1235
1236 /**
1237  * sdma_v2_4_emit_copy_buffer - copy buffer using the sDMA engine
1238  *
1239  * @ring: amdgpu_ring structure holding ring information
1240  * @src_offset: src GPU address
1241  * @dst_offset: dst GPU address
1242  * @byte_count: number of bytes to xfer
1243  *
1244  * Copy GPU buffers using the DMA engine (VI).
1245  * Used by the amdgpu ttm implementation to move pages if
1246  * registered as the asic copy callback.
1247  */
1248 static void sdma_v2_4_emit_copy_buffer(struct amdgpu_ib *ib,
1249                                        uint64_t src_offset,
1250                                        uint64_t dst_offset,
1251                                        uint32_t byte_count)
1252 {
1253         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_COPY) |
1254                 SDMA_PKT_HEADER_SUB_OP(SDMA_SUBOP_COPY_LINEAR);
1255         ib->ptr[ib->length_dw++] = byte_count;
1256         ib->ptr[ib->length_dw++] = 0; /* src/dst endian swap */
1257         ib->ptr[ib->length_dw++] = lower_32_bits(src_offset);
1258         ib->ptr[ib->length_dw++] = upper_32_bits(src_offset);
1259         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1260         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1261 }
1262
1263 /**
1264  * sdma_v2_4_emit_fill_buffer - fill buffer using the sDMA engine
1265  *
1266  * @ring: amdgpu_ring structure holding ring information
1267  * @src_data: value to write to buffer
1268  * @dst_offset: dst GPU address
1269  * @byte_count: number of bytes to xfer
1270  *
1271  * Fill GPU buffers using the DMA engine (VI).
1272  */
1273 static void sdma_v2_4_emit_fill_buffer(struct amdgpu_ib *ib,
1274                                        uint32_t src_data,
1275                                        uint64_t dst_offset,
1276                                        uint32_t byte_count)
1277 {
1278         ib->ptr[ib->length_dw++] = SDMA_PKT_HEADER_OP(SDMA_OP_CONST_FILL);
1279         ib->ptr[ib->length_dw++] = lower_32_bits(dst_offset);
1280         ib->ptr[ib->length_dw++] = upper_32_bits(dst_offset);
1281         ib->ptr[ib->length_dw++] = src_data;
1282         ib->ptr[ib->length_dw++] = byte_count;
1283 }
1284
1285 static const struct amdgpu_buffer_funcs sdma_v2_4_buffer_funcs = {
1286         .copy_max_bytes = 0x1fffff,
1287         .copy_num_dw = 7,
1288         .emit_copy_buffer = sdma_v2_4_emit_copy_buffer,
1289
1290         .fill_max_bytes = 0x1fffff,
1291         .fill_num_dw = 7,
1292         .emit_fill_buffer = sdma_v2_4_emit_fill_buffer,
1293 };
1294
1295 static void sdma_v2_4_set_buffer_funcs(struct amdgpu_device *adev)
1296 {
1297         if (adev->mman.buffer_funcs == NULL) {
1298                 adev->mman.buffer_funcs = &sdma_v2_4_buffer_funcs;
1299                 adev->mman.buffer_funcs_ring = &adev->sdma.instance[0].ring;
1300         }
1301 }
1302
1303 static const struct amdgpu_vm_pte_funcs sdma_v2_4_vm_pte_funcs = {
1304         .copy_pte_num_dw = 7,
1305         .copy_pte = sdma_v2_4_vm_copy_pte,
1306
1307         .write_pte = sdma_v2_4_vm_write_pte,
1308         .set_pte_pde = sdma_v2_4_vm_set_pte_pde,
1309 };
1310
1311 static void sdma_v2_4_set_vm_pte_funcs(struct amdgpu_device *adev)
1312 {
1313         unsigned i;
1314
1315         if (adev->vm_manager.vm_pte_funcs == NULL) {
1316                 adev->vm_manager.vm_pte_funcs = &sdma_v2_4_vm_pte_funcs;
1317                 for (i = 0; i < adev->sdma.num_instances; i++)
1318                         adev->vm_manager.vm_pte_rings[i] =
1319                                 &adev->sdma.instance[i].ring;
1320
1321                 adev->vm_manager.vm_pte_num_rings = adev->sdma.num_instances;
1322         }
1323 }
1324
1325 const struct amdgpu_ip_block_version sdma_v2_4_ip_block =
1326 {
1327         .type = AMD_IP_BLOCK_TYPE_SDMA,
1328         .major = 2,
1329         .minor = 4,
1330         .rev = 0,
1331         .funcs = &sdma_v2_4_ip_funcs,
1332 };