drivers/gpu/drm/amd/amdgpu/gmc_v8_0.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  */
  23 #include <linux/firmware.h>
  24 #include "drmP.h"
  25 #include "amdgpu.h"
  26 #include "gmc_v8_0.h"
  27 #include "amdgpu_ucode.h"
  28
  29 #include "gmc/gmc_8_1_d.h"
  30 #include "gmc/gmc_8_1_sh_mask.h"
  31
  32 #include "bif/bif_5_0_d.h"
  33 #include "bif/bif_5_0_sh_mask.h"
  34
  35 #include "oss/oss_3_0_d.h"
  36 #include "oss/oss_3_0_sh_mask.h"
  37
  38 #include "vid.h"
  39 #include "vi.h"
  40
  41
  42 static void gmc_v8_0_set_gart_funcs(struct amdgpu_device *adev);
  43 static void gmc_v8_0_set_irq_funcs(struct amdgpu_device *adev);
  44
  45 MODULE_FIRMWARE("amdgpu/tonga_mc.bin");
  46
  47 static const u32 golden_settings_tonga_a11[] =
  48 {
  49         mmMC_ARB_WTM_GRPWT_RD, 0x00000003, 0x00000000,
  50         mmMC_HUB_RDREQ_DMIF_LIMIT, 0x0000007f, 0x00000028,
  51         mmMC_HUB_WDP_UMC, 0x00007fb6, 0x00000991,
  52         mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  53         mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  54         mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  55         mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  56 };
  57
  58 static const u32 tonga_mgcg_cgcg_init[] =
  59 {
  60         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  61 };
  62
  63 static const u32 golden_settings_fiji_a10[] =
  64 {
  65         mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  66         mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  67         mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  68         mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  69 };
  70
  71 static const u32 fiji_mgcg_cgcg_init[] =
  72 {
  73         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  74 };
  75
  76 static const u32 cz_mgcg_cgcg_init[] =
  77 {
  78         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  79 };
  80
  81 static const u32 stoney_mgcg_cgcg_init[] =
  82 {
  83         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  84 };
  85
  86
  87 static void gmc_v8_0_init_golden_registers(struct amdgpu_device *adev)
  88 {
  89         switch (adev->asic_type) {
  90         case CHIP_FIJI:
  91                 amdgpu_program_register_sequence(adev,
  92                                                  fiji_mgcg_cgcg_init,
  93                                                  (const u32)ARRAY_SIZE(fiji_mgcg_cgcg_init));
  94                 amdgpu_program_register_sequence(adev,
  95                                                  golden_settings_fiji_a10,
  96                                                  (const u32)ARRAY_SIZE(golden_settings_fiji_a10));
  97                 break;
  98         case CHIP_TONGA:
  99                 amdgpu_program_register_sequence(adev,
 100                                                  tonga_mgcg_cgcg_init,
 101                                                  (const u32)ARRAY_SIZE(tonga_mgcg_cgcg_init));
 102                 amdgpu_program_register_sequence(adev,
 103                                                  golden_settings_tonga_a11,
 104                                                  (const u32)ARRAY_SIZE(golden_settings_tonga_a11));
 105                 break;
 106         case CHIP_CARRIZO:
 107                 amdgpu_program_register_sequence(adev,
 108                                                  cz_mgcg_cgcg_init,
 109                                                  (const u32)ARRAY_SIZE(cz_mgcg_cgcg_init));
 110                 break;
 111         case CHIP_STONEY:
 112                 amdgpu_program_register_sequence(adev,
 113                                                  stoney_mgcg_cgcg_init,
 114                                                  (const u32)ARRAY_SIZE(stoney_mgcg_cgcg_init));
 115                 break;
 116         default:
 117                 break;
 118         }
 119 }
 120
 121 /**
 122  * gmc8_mc_wait_for_idle - wait for MC idle callback.
 123  *
 124  * @adev: amdgpu_device pointer
 125  *
 126  * Wait for the MC (memory controller) to be idle.
 127  * (evergreen+).
 128  * Returns 0 if the MC is idle, -1 if not.
 129  */
 130 int gmc_v8_0_mc_wait_for_idle(struct amdgpu_device *adev)
 131 {
 132         unsigned i;
 133         u32 tmp;
 134
 135         for (i = 0; i < adev->usec_timeout; i++) {
 136                 /* read MC_STATUS */
 137                 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__VMC_BUSY_MASK |
 138                                                SRBM_STATUS__MCB_BUSY_MASK |
 139                                                SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
 140                                                SRBM_STATUS__MCC_BUSY_MASK |
 141                                                SRBM_STATUS__MCD_BUSY_MASK |
 142                                                SRBM_STATUS__VMC1_BUSY_MASK);
 143                 if (!tmp)
 144                         return 0;
 145                 udelay(1);
 146         }
 147         return -1;
 148 }
 149
 150 void gmc_v8_0_mc_stop(struct amdgpu_device *adev,
 151                       struct amdgpu_mode_mc_save *save)
 152 {
 153         u32 blackout;
 154
 155         if (adev->mode_info.num_crtc)
 156                 amdgpu_display_stop_mc_access(adev, save);
 157
 158         amdgpu_asic_wait_for_mc_idle(adev);
 159
 160         blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 161         if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
 162                 /* Block CPU access */
 163                 WREG32(mmBIF_FB_EN, 0);
 164                 /* blackout the MC */
 165                 blackout = REG_SET_FIELD(blackout,
 166                                          MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 1);
 167                 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout);
 168         }
 169         /* wait for the MC to settle */
 170         udelay(100);
 171 }
 172
 173 void gmc_v8_0_mc_resume(struct amdgpu_device *adev,
 174                         struct amdgpu_mode_mc_save *save)
 175 {
 176         u32 tmp;
 177
 178         /* unblackout the MC */
 179         tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 180         tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
 181         WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
 182         /* allow CPU access */
 183         tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
 184         tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
 185         WREG32(mmBIF_FB_EN, tmp);
 186
 187         if (adev->mode_info.num_crtc)
 188                 amdgpu_display_resume_mc_access(adev, save);
 189 }
 190
 191 /**
 192  * gmc_v8_0_init_microcode - load ucode images from disk
 193  *
 194  * @adev: amdgpu_device pointer
 195  *
 196  * Use the firmware interface to load the ucode images into
 197  * the driver (not loaded into hw).
 198  * Returns 0 on success, error on failure.
 199  */
 200 static int gmc_v8_0_init_microcode(struct amdgpu_device *adev)
 201 {
 202         const char *chip_name;
 203         char fw_name[30];
 204         int err;
 205
 206         DRM_DEBUG("\n");
 207
 208         switch (adev->asic_type) {
 209         case CHIP_TONGA:
 210                 chip_name = "tonga";
 211                 break;
 212         case CHIP_FIJI:
 213         case CHIP_CARRIZO:
 214         case CHIP_STONEY:
 215                 return 0;
 216         default: BUG();
 217         }
 218
 219         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
 220         err = request_firmware(&adev->mc.fw, fw_name, adev->dev);
 221         if (err)
 222                 goto out;
 223         err = amdgpu_ucode_validate(adev->mc.fw);
 224
 225 out:
 226         if (err) {
 227                 printk(KERN_ERR
 228                        "mc: Failed to load firmware \"%s\"\n",
 229                        fw_name);
 230                 release_firmware(adev->mc.fw);
 231                 adev->mc.fw = NULL;
 232         }
 233         return err;
 234 }
 235
 236 /**
 237  * gmc_v8_0_mc_load_microcode - load MC ucode into the hw
 238  *
 239  * @adev: amdgpu_device pointer
 240  *
 241  * Load the GDDR MC ucode into the hw (CIK).
 242  * Returns 0 on success, error on failure.
 243  */
 244 static int gmc_v8_0_mc_load_microcode(struct amdgpu_device *adev)
 245 {
 246         const struct mc_firmware_header_v1_0 *hdr;
 247         const __le32 *fw_data = NULL;
 248         const __le32 *io_mc_regs = NULL;
 249         u32 running, blackout = 0;
 250         int i, ucode_size, regs_size;
 251
 252         if (!adev->mc.fw)
 253                 return -EINVAL;
 254
 255         /* Skip MC ucode loading on SR-IOV capable boards.
 256          * vbios does this for us in asic_init in that case.
 257          */
 258         if (adev->virtualization.supports_sr_iov)
 259                 return 0;
 260
 261         hdr = (const struct mc_firmware_header_v1_0 *)adev->mc.fw->data;
 262         amdgpu_ucode_print_mc_hdr(&hdr->header);
 263
 264         adev->mc.fw_version = le32_to_cpu(hdr->header.ucode_version);
 265         regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
 266         io_mc_regs = (const __le32 *)
 267                 (adev->mc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
 268         ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 269         fw_data = (const __le32 *)
 270                 (adev->mc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 271
 272         running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN);
 273
 274         if (running == 0) {
 275                 if (running) {
 276                         blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 277                         WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
 278                 }
 279
 280                 /* reset the engine and set to writable */
 281                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 282                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
 283
 284                 /* load mc io regs */
 285                 for (i = 0; i < regs_size; i++) {
 286                         WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++));
 287                         WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++));
 288                 }
 289                 /* load the MC ucode */
 290                 for (i = 0; i < ucode_size; i++)
 291                         WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++));
 292
 293                 /* put the engine back into the active state */
 294                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 295                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
 296                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
 297
 298                 /* wait for training to complete */
 299                 for (i = 0; i < adev->usec_timeout; i++) {
 300                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 301                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0))
 302                                 break;
 303                         udelay(1);
 304                 }
 305                 for (i = 0; i < adev->usec_timeout; i++) {
 306                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 307                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1))
 308                                 break;
 309                         udelay(1);
 310                 }
 311
 312                 if (running)
 313                         WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout);
 314         }
 315
 316         return 0;
 317 }
 318
 319 static void gmc_v8_0_vram_gtt_location(struct amdgpu_device *adev,
 320                                        struct amdgpu_mc *mc)
 321 {
 322         if (mc->mc_vram_size > 0xFFC0000000ULL) {
 323                 /* leave room for at least 1024M GTT */
 324                 dev_warn(adev->dev, "limiting VRAM\n");
 325                 mc->real_vram_size = 0xFFC0000000ULL;
 326                 mc->mc_vram_size = 0xFFC0000000ULL;
 327         }
 328         amdgpu_vram_location(adev, &adev->mc, 0);
 329         adev->mc.gtt_base_align = 0;
 330         amdgpu_gtt_location(adev, mc);
 331 }
 332
 333 /**
 334  * gmc_v8_0_mc_program - program the GPU memory controller
 335  *
 336  * @adev: amdgpu_device pointer
 337  *
 338  * Set the location of vram, gart, and AGP in the GPU's
 339  * physical address space (CIK).
 340  */
 341 static void gmc_v8_0_mc_program(struct amdgpu_device *adev)
 342 {
 343         struct amdgpu_mode_mc_save save;
 344         u32 tmp;
 345         int i, j;
 346
 347         /* Initialize HDP */
 348         for (i = 0, j = 0; i < 32; i++, j += 0x6) {
 349                 WREG32((0xb05 + j), 0x00000000);
 350                 WREG32((0xb06 + j), 0x00000000);
 351                 WREG32((0xb07 + j), 0x00000000);
 352                 WREG32((0xb08 + j), 0x00000000);
 353                 WREG32((0xb09 + j), 0x00000000);
 354         }
 355         WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
 356
 357         if (adev->mode_info.num_crtc)
 358                 amdgpu_display_set_vga_render_state(adev, false);
 359
 360         gmc_v8_0_mc_stop(adev, &save);
 361         if (amdgpu_asic_wait_for_mc_idle(adev)) {
 362                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 363         }
 364         /* Update configuration */
 365         WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 366                adev->mc.vram_start >> 12);
 367         WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 368                adev->mc.vram_end >> 12);
 369         WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
 370                adev->vram_scratch.gpu_addr >> 12);
 371         tmp = ((adev->mc.vram_end >> 24) & 0xFFFF) << 16;
 372         tmp |= ((adev->mc.vram_start >> 24) & 0xFFFF);
 373         WREG32(mmMC_VM_FB_LOCATION, tmp);
 374         /* XXX double check these! */
 375         WREG32(mmHDP_NONSURFACE_BASE, (adev->mc.vram_start >> 8));
 376         WREG32(mmHDP_NONSURFACE_INFO, (2 << 7) | (1 << 30));
 377         WREG32(mmHDP_NONSURFACE_SIZE, 0x3FFFFFFF);
 378         WREG32(mmMC_VM_AGP_BASE, 0);
 379         WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
 380         WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
 381         if (amdgpu_asic_wait_for_mc_idle(adev)) {
 382                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 383         }
 384         gmc_v8_0_mc_resume(adev, &save);
 385
 386         WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
 387
 388         tmp = RREG32(mmHDP_MISC_CNTL);
 389         tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 0);
 390         WREG32(mmHDP_MISC_CNTL, tmp);
 391
 392         tmp = RREG32(mmHDP_HOST_PATH_CNTL);
 393         WREG32(mmHDP_HOST_PATH_CNTL, tmp);
 394 }
 395
 396 /**
 397  * gmc_v8_0_mc_init - initialize the memory controller driver params
 398  *
 399  * @adev: amdgpu_device pointer
 400  *
 401  * Look up the amount of vram, vram width, and decide how to place
 402  * vram and gart within the GPU's physical address space (CIK).
 403  * Returns 0 for success.
 404  */
 405 static int gmc_v8_0_mc_init(struct amdgpu_device *adev)
 406 {
 407         u32 tmp;
 408         int chansize, numchan;
 409
 410         /* Get VRAM informations */
 411         tmp = RREG32(mmMC_ARB_RAMCFG);
 412         if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) {
 413                 chansize = 64;
 414         } else {
 415                 chansize = 32;
 416         }
 417         tmp = RREG32(mmMC_SHARED_CHMAP);
 418         switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) {
 419         case 0:
 420         default:
 421                 numchan = 1;
 422                 break;
 423         case 1:
 424                 numchan = 2;
 425                 break;
 426         case 2:
 427                 numchan = 4;
 428                 break;
 429         case 3:
 430                 numchan = 8;
 431                 break;
 432         case 4:
 433                 numchan = 3;
 434                 break;
 435         case 5:
 436                 numchan = 6;
 437                 break;
 438         case 6:
 439                 numchan = 10;
 440                 break;
 441         case 7:
 442                 numchan = 12;
 443                 break;
 444         case 8:
 445                 numchan = 16;
 446                 break;
 447         }
 448         adev->mc.vram_width = numchan * chansize;
 449         /* Could aper size report 0 ? */
 450         adev->mc.aper_base = pci_resource_start(adev->pdev, 0);
 451         adev->mc.aper_size = pci_resource_len(adev->pdev, 0);
 452         /* size in MB on si */
 453         adev->mc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 454         adev->mc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 455         adev->mc.visible_vram_size = adev->mc.aper_size;
 456
 457         /* In case the PCI BAR is larger than the actual amount of vram */
 458         if (adev->mc.visible_vram_size > adev->mc.real_vram_size)
 459                 adev->mc.visible_vram_size = adev->mc.real_vram_size;
 460
 461         /* unless the user had overridden it, set the gart
 462          * size equal to the 1024 or vram, whichever is larger.
 463          */
 464         if (amdgpu_gart_size == -1)
 465                 adev->mc.gtt_size = max((1024ULL << 20), adev->mc.mc_vram_size);
 466         else
 467                 adev->mc.gtt_size = (uint64_t)amdgpu_gart_size << 20;
 468
 469         gmc_v8_0_vram_gtt_location(adev, &adev->mc);
 470
 471         return 0;
 472 }
 473
 474 /*
 475  * GART
 476  * VMID 0 is the physical GPU addresses as used by the kernel.
 477  * VMIDs 1-15 are used for userspace clients and are handled
 478  * by the amdgpu vm/hsa code.
 479  */
 480
 481 /**
 482  * gmc_v8_0_gart_flush_gpu_tlb - gart tlb flush callback
 483  *
 484  * @adev: amdgpu_device pointer
 485  * @vmid: vm instance to flush
 486  *
 487  * Flush the TLB for the requested page table (CIK).
 488  */
 489 static void gmc_v8_0_gart_flush_gpu_tlb(struct amdgpu_device *adev,
 490                                         uint32_t vmid)
 491 {
 492         /* flush hdp cache */
 493         WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 0);
 494
 495         /* bits 0-15 are the VM contexts0-15 */
 496         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 497 }
 498
 499 /**
 500  * gmc_v8_0_gart_set_pte_pde - update the page tables using MMIO
 501  *
 502  * @adev: amdgpu_device pointer
 503  * @cpu_pt_addr: cpu address of the page table
 504  * @gpu_page_idx: entry in the page table to update
 505  * @addr: dst addr to write into pte/pde
 506  * @flags: access flags
 507  *
 508  * Update the page tables using the CPU.
 509  */
 510 static int gmc_v8_0_gart_set_pte_pde(struct amdgpu_device *adev,
 511                                      void *cpu_pt_addr,
 512                                      uint32_t gpu_page_idx,
 513                                      uint64_t addr,
 514                                      uint32_t flags)
 515 {
 516         void __iomem *ptr = (void *)cpu_pt_addr;
 517         uint64_t value;
 518
 519         /*
 520          * PTE format on VI:
 521          * 63:40 reserved
 522          * 39:12 4k physical page base address
 523          * 11:7 fragment
 524          * 6 write
 525          * 5 read
 526          * 4 exe
 527          * 3 reserved
 528          * 2 snooped
 529          * 1 system
 530          * 0 valid
 531          *
 532          * PDE format on VI:
 533          * 63:59 block fragment size
 534          * 58:40 reserved
 535          * 39:1 physical base address of PTE
 536          * bits 5:1 must be 0.
 537          * 0 valid
 538          */
 539         value = addr & 0x000000FFFFFFF000ULL;
 540         value |= flags;
 541         writeq(value, ptr + (gpu_page_idx * 8));
 542
 543         return 0;
 544 }
 545
 546 /**
 547  * gmc_v8_0_set_fault_enable_default - update VM fault handling
 548  *
 549  * @adev: amdgpu_device pointer
 550  * @value: true redirects VM faults to the default page
 551  */
 552 static void gmc_v8_0_set_fault_enable_default(struct amdgpu_device *adev,
 553                                               bool value)
 554 {
 555         u32 tmp;
 556
 557         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 558         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 559                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 560         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 561                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 562         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 563                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 564         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 565                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 566         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 567                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 568         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 569                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 570         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 571                             EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 572         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 573 }
 574
 575 /**
 576  * gmc_v8_0_gart_enable - gart enable
 577  *
 578  * @adev: amdgpu_device pointer
 579  *
 580  * This sets up the TLBs, programs the page tables for VMID0,
 581  * sets up the hw for VMIDs 1-15 which are allocated on
 582  * demand, and sets up the global locations for the LDS, GDS,
 583  * and GPUVM for FSA64 clients (CIK).
 584  * Returns 0 for success, errors for failure.
 585  */
 586 static int gmc_v8_0_gart_enable(struct amdgpu_device *adev)
 587 {
 588         int r, i;
 589         u32 tmp;
 590
 591         if (adev->gart.robj == NULL) {
 592                 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 593                 return -EINVAL;
 594         }
 595         r = amdgpu_gart_table_vram_pin(adev);
 596         if (r)
 597                 return r;
 598         /* Setup TLB control */
 599         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 600         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 601         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1);
 602         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 603         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1);
 604         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 605         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 606         /* Setup L2 cache */
 607         tmp = RREG32(mmVM_L2_CNTL);
 608         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
 609         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
 610         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1);
 611         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1);
 612         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7);
 613         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 614         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 615         WREG32(mmVM_L2_CNTL, tmp);
 616         tmp = RREG32(mmVM_L2_CNTL2);
 617         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 618         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 619         WREG32(mmVM_L2_CNTL2, tmp);
 620         tmp = RREG32(mmVM_L2_CNTL3);
 621         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1);
 622         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 4);
 623         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, 4);
 624         WREG32(mmVM_L2_CNTL3, tmp);
 625         /* XXX: set to enable PTE/PDE in system memory */
 626         tmp = RREG32(mmVM_L2_CNTL4);
 627         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_PHYSICAL, 0);
 628         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_SHARED, 0);
 629         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_SNOOP, 0);
 630         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_PHYSICAL, 0);
 631         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_SHARED, 0);
 632         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_SNOOP, 0);
 633         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_PHYSICAL, 0);
 634         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_SHARED, 0);
 635         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_SNOOP, 0);
 636         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_PHYSICAL, 0);
 637         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_SHARED, 0);
 638         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_SNOOP, 0);
 639         WREG32(mmVM_L2_CNTL4, tmp);
 640         /* setup context0 */
 641         WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->mc.gtt_start >> 12);
 642         WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->mc.gtt_end >> 12);
 643         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.table_addr >> 12);
 644         WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 645                         (u32)(adev->dummy_page.addr >> 12));
 646         WREG32(mmVM_CONTEXT0_CNTL2, 0);
 647         tmp = RREG32(mmVM_CONTEXT0_CNTL);
 648         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 649         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 650         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 651         WREG32(mmVM_CONTEXT0_CNTL, tmp);
 652
 653         WREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR, 0);
 654         WREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR, 0);
 655         WREG32(mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET, 0);
 656
 657         /* empty context1-15 */
 658         /* FIXME start with 4G, once using 2 level pt switch to full
 659          * vm size space
 660          */
 661         /* set vm size, must be a multiple of 4 */
 662         WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
 663         WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
 664         for (i = 1; i < 16; i++) {
 665                 if (i < 8)
 666                         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
 667                                adev->gart.table_addr >> 12);
 668                 else
 669                         WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
 670                                adev->gart.table_addr >> 12);
 671         }
 672
 673         /* enable context1-15 */
 674         WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 675                (u32)(adev->dummy_page.addr >> 12));
 676         WREG32(mmVM_CONTEXT1_CNTL2, 4);
 677         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 678         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 679         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1);
 680         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 681         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 682         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 683         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 684         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 685         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 686         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 687         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE,
 688                             amdgpu_vm_block_size - 9);
 689         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 690         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 691                 gmc_v8_0_set_fault_enable_default(adev, false);
 692         else
 693                 gmc_v8_0_set_fault_enable_default(adev, true);
 694
 695         gmc_v8_0_gart_flush_gpu_tlb(adev, 0);
 696         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 697                  (unsigned)(adev->mc.gtt_size >> 20),
 698                  (unsigned long long)adev->gart.table_addr);
 699         adev->gart.ready = true;
 700         return 0;
 701 }
 702
 703 static int gmc_v8_0_gart_init(struct amdgpu_device *adev)
 704 {
 705         int r;
 706
 707         if (adev->gart.robj) {
 708                 WARN(1, "R600 PCIE GART already initialized\n");
 709                 return 0;
 710         }
 711         /* Initialize common gart structure */
 712         r = amdgpu_gart_init(adev);
 713         if (r)
 714                 return r;
 715         adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 716         return amdgpu_gart_table_vram_alloc(adev);
 717 }
 718
 719 /**
 720  * gmc_v8_0_gart_disable - gart disable
 721  *
 722  * @adev: amdgpu_device pointer
 723  *
 724  * This disables all VM page table (CIK).
 725  */
 726 static void gmc_v8_0_gart_disable(struct amdgpu_device *adev)
 727 {
 728         u32 tmp;
 729
 730         /* Disable all tables */
 731         WREG32(mmVM_CONTEXT0_CNTL, 0);
 732         WREG32(mmVM_CONTEXT1_CNTL, 0);
 733         /* Setup TLB control */
 734         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 735         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 736         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0);
 737         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0);
 738         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 739         /* Setup L2 cache */
 740         tmp = RREG32(mmVM_L2_CNTL);
 741         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
 742         WREG32(mmVM_L2_CNTL, tmp);
 743         WREG32(mmVM_L2_CNTL2, 0);
 744         amdgpu_gart_table_vram_unpin(adev);
 745 }
 746
 747 /**
 748  * gmc_v8_0_gart_fini - vm fini callback
 749  *
 750  * @adev: amdgpu_device pointer
 751  *
 752  * Tears down the driver GART/VM setup (CIK).
 753  */
 754 static void gmc_v8_0_gart_fini(struct amdgpu_device *adev)
 755 {
 756         amdgpu_gart_table_vram_free(adev);
 757         amdgpu_gart_fini(adev);
 758 }
 759
 760 /*
 761  * vm
 762  * VMID 0 is the physical GPU addresses as used by the kernel.
 763  * VMIDs 1-15 are used for userspace clients and are handled
 764  * by the amdgpu vm/hsa code.
 765  */
 766 /**
 767  * gmc_v8_0_vm_init - cik vm init callback
 768  *
 769  * @adev: amdgpu_device pointer
 770  *
 771  * Inits cik specific vm parameters (number of VMs, base of vram for
 772  * VMIDs 1-15) (CIK).
 773  * Returns 0 for success.
 774  */
 775 static int gmc_v8_0_vm_init(struct amdgpu_device *adev)
 776 {
 777         /*
 778          * number of VMs
 779          * VMID 0 is reserved for System
 780          * amdgpu graphics/compute will use VMIDs 1-7
 781          * amdkfd will use VMIDs 8-15
 782          */
 783         adev->vm_manager.num_ids = AMDGPU_NUM_OF_VMIDS;
 784         amdgpu_vm_manager_init(adev);
 785
 786         /* base offset of vram pages */
 787         if (adev->flags & AMD_IS_APU) {
 788                 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
 789                 tmp <<= 22;
 790                 adev->vm_manager.vram_base_offset = tmp;
 791         } else
 792                 adev->vm_manager.vram_base_offset = 0;
 793
 794         return 0;
 795 }
 796
 797 /**
 798  * gmc_v8_0_vm_fini - cik vm fini callback
 799  *
 800  * @adev: amdgpu_device pointer
 801  *
 802  * Tear down any asic specific VM setup (CIK).
 803  */
 804 static void gmc_v8_0_vm_fini(struct amdgpu_device *adev)
 805 {
 806 }
 807
 808 /**
 809  * gmc_v8_0_vm_decode_fault - print human readable fault info
 810  *
 811  * @adev: amdgpu_device pointer
 812  * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
 813  * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
 814  *
 815  * Print human readable fault information (CIK).
 816  */
 817 static void gmc_v8_0_vm_decode_fault(struct amdgpu_device *adev,
 818                                      u32 status, u32 addr, u32 mc_client)
 819 {
 820         u32 mc_id;
 821         u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
 822         u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 823                                         PROTECTIONS);
 824         char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
 825                 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
 826
 827         mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 828                               MEMORY_CLIENT_ID);
 829
 830         printk("VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
 831                protections, vmid, addr,
 832                REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 833                              MEMORY_CLIENT_RW) ?
 834                "write" : "read", block, mc_client, mc_id);
 835 }
 836
 837 static int gmc_v8_0_convert_vram_type(int mc_seq_vram_type)
 838 {
 839         switch (mc_seq_vram_type) {
 840         case MC_SEQ_MISC0__MT__GDDR1:
 841                 return AMDGPU_VRAM_TYPE_GDDR1;
 842         case MC_SEQ_MISC0__MT__DDR2:
 843                 return AMDGPU_VRAM_TYPE_DDR2;
 844         case MC_SEQ_MISC0__MT__GDDR3:
 845                 return AMDGPU_VRAM_TYPE_GDDR3;
 846         case MC_SEQ_MISC0__MT__GDDR4:
 847                 return AMDGPU_VRAM_TYPE_GDDR4;
 848         case MC_SEQ_MISC0__MT__GDDR5:
 849                 return AMDGPU_VRAM_TYPE_GDDR5;
 850         case MC_SEQ_MISC0__MT__HBM:
 851                 return AMDGPU_VRAM_TYPE_HBM;
 852         case MC_SEQ_MISC0__MT__DDR3:
 853                 return AMDGPU_VRAM_TYPE_DDR3;
 854         default:
 855                 return AMDGPU_VRAM_TYPE_UNKNOWN;
 856         }
 857 }
 858
 859 static int gmc_v8_0_early_init(void *handle)
 860 {
 861         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 862
 863         gmc_v8_0_set_gart_funcs(adev);
 864         gmc_v8_0_set_irq_funcs(adev);
 865
 866         return 0;
 867 }
 868
 869 static int gmc_v8_0_late_init(void *handle)
 870 {
 871         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 872
 873         return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0);
 874 }
 875
 876 #define mmMC_SEQ_MISC0_FIJI 0xA71
 877
 878 static int gmc_v8_0_sw_init(void *handle)
 879 {
 880         int r;
 881         int dma_bits;
 882         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 883
 884         if (adev->flags & AMD_IS_APU) {
 885                 adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 886         } else {
 887                 u32 tmp;
 888
 889                 if (adev->asic_type == CHIP_FIJI)
 890                         tmp = RREG32(mmMC_SEQ_MISC0_FIJI);
 891                 else
 892                         tmp = RREG32(mmMC_SEQ_MISC0);
 893                 tmp &= MC_SEQ_MISC0__MT__MASK;
 894                 adev->mc.vram_type = gmc_v8_0_convert_vram_type(tmp);
 895         }
 896
 897         r = amdgpu_irq_add_id(adev, 146, &adev->mc.vm_fault);
 898         if (r)
 899                 return r;
 900
 901         r = amdgpu_irq_add_id(adev, 147, &adev->mc.vm_fault);
 902         if (r)
 903                 return r;
 904
 905         /* Adjust VM size here.
 906          * Currently set to 4GB ((1 << 20) 4k pages).
 907          * Max GPUVM size for cayman and SI is 40 bits.
 908          */
 909         adev->vm_manager.max_pfn = amdgpu_vm_size << 18;
 910
 911         /* Set the internal MC address mask
 912          * This is the max address of the GPU's
 913          * internal address space.
 914          */
 915         adev->mc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
 916
 917         /* set DMA mask + need_dma32 flags.
 918          * PCIE - can handle 40-bits.
 919          * IGP - can handle 40-bits
 920          * PCI - dma32 for legacy pci gart, 40 bits on newer asics
 921          */
 922         adev->need_dma32 = false;
 923         dma_bits = adev->need_dma32 ? 32 : 40;
 924         r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
 925         if (r) {
 926                 adev->need_dma32 = true;
 927                 dma_bits = 32;
 928                 printk(KERN_WARNING "amdgpu: No suitable DMA available.\n");
 929         }
 930         r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
 931         if (r) {
 932                 pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32));
 933                 printk(KERN_WARNING "amdgpu: No coherent DMA available.\n");
 934         }
 935
 936         r = gmc_v8_0_init_microcode(adev);
 937         if (r) {
 938                 DRM_ERROR("Failed to load mc firmware!\n");
 939                 return r;
 940         }
 941
 942         r = gmc_v8_0_mc_init(adev);
 943         if (r)
 944                 return r;
 945
 946         /* Memory manager */
 947         r = amdgpu_bo_init(adev);
 948         if (r)
 949                 return r;
 950
 951         r = gmc_v8_0_gart_init(adev);
 952         if (r)
 953                 return r;
 954
 955         if (!adev->vm_manager.enabled) {
 956                 r = gmc_v8_0_vm_init(adev);
 957                 if (r) {
 958                         dev_err(adev->dev, "vm manager initialization failed (%d).\n", r);
 959                         return r;
 960                 }
 961                 adev->vm_manager.enabled = true;
 962         }
 963
 964         return r;
 965 }
 966
 967 static int gmc_v8_0_sw_fini(void *handle)
 968 {
 969         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 970
 971         if (adev->vm_manager.enabled) {
 972                 amdgpu_vm_manager_fini(adev);
 973                 gmc_v8_0_vm_fini(adev);
 974                 adev->vm_manager.enabled = false;
 975         }
 976         gmc_v8_0_gart_fini(adev);
 977         amdgpu_gem_force_release(adev);
 978         amdgpu_bo_fini(adev);
 979
 980         return 0;
 981 }
 982
 983 static int gmc_v8_0_hw_init(void *handle)
 984 {
 985         int r;
 986         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 987
 988         gmc_v8_0_init_golden_registers(adev);
 989
 990         gmc_v8_0_mc_program(adev);
 991
 992         if (adev->asic_type == CHIP_TONGA) {
 993                 r = gmc_v8_0_mc_load_microcode(adev);
 994                 if (r) {
 995                         DRM_ERROR("Failed to load MC firmware!\n");
 996                         return r;
 997                 }
 998         }
 999
1000         r = gmc_v8_0_gart_enable(adev);
1001         if (r)
1002                 return r;
1003
1004         return r;
1005 }
1006
1007 static int gmc_v8_0_hw_fini(void *handle)
1008 {
1009         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1010
1011         amdgpu_irq_put(adev, &adev->mc.vm_fault, 0);
1012         gmc_v8_0_gart_disable(adev);
1013
1014         return 0;
1015 }
1016
1017 static int gmc_v8_0_suspend(void *handle)
1018 {
1019         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1020
1021         if (adev->vm_manager.enabled) {
1022                 gmc_v8_0_vm_fini(adev);
1023                 adev->vm_manager.enabled = false;
1024         }
1025         gmc_v8_0_hw_fini(adev);
1026
1027         return 0;
1028 }
1029
1030 static int gmc_v8_0_resume(void *handle)
1031 {
1032         int r;
1033         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1034
1035         r = gmc_v8_0_hw_init(adev);
1036         if (r)
1037                 return r;
1038
1039         if (!adev->vm_manager.enabled) {
1040                 r = gmc_v8_0_vm_init(adev);
1041                 if (r) {
1042                         dev_err(adev->dev, "vm manager initialization failed (%d).\n", r);
1043                         return r;
1044                 }
1045                 adev->vm_manager.enabled = true;
1046         }
1047
1048         return r;
1049 }
1050
1051 static bool gmc_v8_0_is_idle(void *handle)
1052 {
1053         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1054         u32 tmp = RREG32(mmSRBM_STATUS);
1055
1056         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1057                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
1058                 return false;
1059
1060         return true;
1061 }
1062
1063 static int gmc_v8_0_wait_for_idle(void *handle)
1064 {
1065         unsigned i;
1066         u32 tmp;
1067         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1068
1069         for (i = 0; i < adev->usec_timeout; i++) {
1070                 /* read MC_STATUS */
1071                 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
1072                                                SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1073                                                SRBM_STATUS__MCC_BUSY_MASK |
1074                                                SRBM_STATUS__MCD_BUSY_MASK |
1075                                                SRBM_STATUS__VMC_BUSY_MASK |
1076                                                SRBM_STATUS__VMC1_BUSY_MASK);
1077                 if (!tmp)
1078                         return 0;
1079                 udelay(1);
1080         }
1081         return -ETIMEDOUT;
1082
1083 }
1084
1085 static void gmc_v8_0_print_status(void *handle)
1086 {
1087         int i, j;
1088         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1089
1090         dev_info(adev->dev, "GMC 8.x registers\n");
1091         dev_info(adev->dev, "  SRBM_STATUS=0x%08X\n",
1092                 RREG32(mmSRBM_STATUS));
1093         dev_info(adev->dev, "  SRBM_STATUS2=0x%08X\n",
1094                 RREG32(mmSRBM_STATUS2));
1095
1096         dev_info(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1097                  RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR));
1098         dev_info(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1099                  RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS));
1100         dev_info(adev->dev, "  MC_VM_MX_L1_TLB_CNTL=0x%08X\n",
1101                  RREG32(mmMC_VM_MX_L1_TLB_CNTL));
1102         dev_info(adev->dev, "  VM_L2_CNTL=0x%08X\n",
1103                  RREG32(mmVM_L2_CNTL));
1104         dev_info(adev->dev, "  VM_L2_CNTL2=0x%08X\n",
1105                  RREG32(mmVM_L2_CNTL2));
1106         dev_info(adev->dev, "  VM_L2_CNTL3=0x%08X\n",
1107                  RREG32(mmVM_L2_CNTL3));
1108         dev_info(adev->dev, "  VM_L2_CNTL4=0x%08X\n",
1109                  RREG32(mmVM_L2_CNTL4));
1110         dev_info(adev->dev, "  VM_CONTEXT0_PAGE_TABLE_START_ADDR=0x%08X\n",
1111                  RREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR));
1112         dev_info(adev->dev, "  VM_CONTEXT0_PAGE_TABLE_END_ADDR=0x%08X\n",
1113                  RREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR));
1114         dev_info(adev->dev, "  VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR=0x%08X\n",
1115                  RREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR));
1116         dev_info(adev->dev, "  VM_CONTEXT0_CNTL2=0x%08X\n",
1117                  RREG32(mmVM_CONTEXT0_CNTL2));
1118         dev_info(adev->dev, "  VM_CONTEXT0_CNTL=0x%08X\n",
1119                  RREG32(mmVM_CONTEXT0_CNTL));
1120         dev_info(adev->dev, "  VM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR=0x%08X\n",
1121                  RREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR));
1122         dev_info(adev->dev, "  VM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR=0x%08X\n",
1123                  RREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR));
1124         dev_info(adev->dev, "  mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET=0x%08X\n",
1125                  RREG32(mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET));
1126         dev_info(adev->dev, "  VM_CONTEXT1_PAGE_TABLE_START_ADDR=0x%08X\n",
1127                  RREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR));
1128         dev_info(adev->dev, "  VM_CONTEXT1_PAGE_TABLE_END_ADDR=0x%08X\n",
1129                  RREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR));
1130         dev_info(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR=0x%08X\n",
1131                  RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR));
1132         dev_info(adev->dev, "  VM_CONTEXT1_CNTL2=0x%08X\n",
1133                  RREG32(mmVM_CONTEXT1_CNTL2));
1134         dev_info(adev->dev, "  VM_CONTEXT1_CNTL=0x%08X\n",
1135                  RREG32(mmVM_CONTEXT1_CNTL));
1136         for (i = 0; i < 16; i++) {
1137                 if (i < 8)
1138                         dev_info(adev->dev, "  VM_CONTEXT%d_PAGE_TABLE_BASE_ADDR=0x%08X\n",
1139                                  i, RREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i));
1140                 else
1141                         dev_info(adev->dev, "  VM_CONTEXT%d_PAGE_TABLE_BASE_ADDR=0x%08X\n",
1142                                  i, RREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8));
1143         }
1144         dev_info(adev->dev, "  MC_VM_SYSTEM_APERTURE_LOW_ADDR=0x%08X\n",
1145                  RREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR));
1146         dev_info(adev->dev, "  MC_VM_SYSTEM_APERTURE_HIGH_ADDR=0x%08X\n",
1147                  RREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR));
1148         dev_info(adev->dev, "  MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR=0x%08X\n",
1149                  RREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR));
1150         dev_info(adev->dev, "  MC_VM_FB_LOCATION=0x%08X\n",
1151                  RREG32(mmMC_VM_FB_LOCATION));
1152         dev_info(adev->dev, "  MC_VM_AGP_BASE=0x%08X\n",
1153                  RREG32(mmMC_VM_AGP_BASE));
1154         dev_info(adev->dev, "  MC_VM_AGP_TOP=0x%08X\n",
1155                  RREG32(mmMC_VM_AGP_TOP));
1156         dev_info(adev->dev, "  MC_VM_AGP_BOT=0x%08X\n",
1157                  RREG32(mmMC_VM_AGP_BOT));
1158
1159         dev_info(adev->dev, "  HDP_REG_COHERENCY_FLUSH_CNTL=0x%08X\n",
1160                  RREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL));
1161         dev_info(adev->dev, "  HDP_NONSURFACE_BASE=0x%08X\n",
1162                  RREG32(mmHDP_NONSURFACE_BASE));
1163         dev_info(adev->dev, "  HDP_NONSURFACE_INFO=0x%08X\n",
1164                  RREG32(mmHDP_NONSURFACE_INFO));
1165         dev_info(adev->dev, "  HDP_NONSURFACE_SIZE=0x%08X\n",
1166                  RREG32(mmHDP_NONSURFACE_SIZE));
1167         dev_info(adev->dev, "  HDP_MISC_CNTL=0x%08X\n",
1168                  RREG32(mmHDP_MISC_CNTL));
1169         dev_info(adev->dev, "  HDP_HOST_PATH_CNTL=0x%08X\n",
1170                  RREG32(mmHDP_HOST_PATH_CNTL));
1171
1172         for (i = 0, j = 0; i < 32; i++, j += 0x6) {
1173                 dev_info(adev->dev, "  %d:\n", i);
1174                 dev_info(adev->dev, "  0x%04X=0x%08X\n",
1175                          0xb05 + j, RREG32(0xb05 + j));
1176                 dev_info(adev->dev, "  0x%04X=0x%08X\n",
1177                          0xb06 + j, RREG32(0xb06 + j));
1178                 dev_info(adev->dev, "  0x%04X=0x%08X\n",
1179                          0xb07 + j, RREG32(0xb07 + j));
1180                 dev_info(adev->dev, "  0x%04X=0x%08X\n",
1181                          0xb08 + j, RREG32(0xb08 + j));
1182                 dev_info(adev->dev, "  0x%04X=0x%08X\n",
1183                          0xb09 + j, RREG32(0xb09 + j));
1184         }
1185
1186         dev_info(adev->dev, "  BIF_FB_EN=0x%08X\n",
1187                  RREG32(mmBIF_FB_EN));
1188 }
1189
1190 static int gmc_v8_0_soft_reset(void *handle)
1191 {
1192         struct amdgpu_mode_mc_save save;
1193         u32 srbm_soft_reset = 0;
1194         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1195         u32 tmp = RREG32(mmSRBM_STATUS);
1196
1197         if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1198                 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1199                                                 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1200
1201         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1202                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1203                 if (!(adev->flags & AMD_IS_APU))
1204                         srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1205                                                         SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1206         }
1207
1208         if (srbm_soft_reset) {
1209                 gmc_v8_0_print_status((void *)adev);
1210
1211                 gmc_v8_0_mc_stop(adev, &save);
1212                 if (gmc_v8_0_wait_for_idle(adev)) {
1213                         dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1214                 }
1215
1216
1217                 tmp = RREG32(mmSRBM_SOFT_RESET);
1218                 tmp |= srbm_soft_reset;
1219                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1220                 WREG32(mmSRBM_SOFT_RESET, tmp);
1221                 tmp = RREG32(mmSRBM_SOFT_RESET);
1222
1223                 udelay(50);
1224
1225                 tmp &= ~srbm_soft_reset;
1226                 WREG32(mmSRBM_SOFT_RESET, tmp);
1227                 tmp = RREG32(mmSRBM_SOFT_RESET);
1228
1229                 /* Wait a little for things to settle down */
1230                 udelay(50);
1231
1232                 gmc_v8_0_mc_resume(adev, &save);
1233                 udelay(50);
1234
1235                 gmc_v8_0_print_status((void *)adev);
1236         }
1237
1238         return 0;
1239 }
1240
1241 static int gmc_v8_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1242                                              struct amdgpu_irq_src *src,
1243                                              unsigned type,
1244                                              enum amdgpu_interrupt_state state)
1245 {
1246         u32 tmp;
1247         u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1248                     VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1249                     VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1250                     VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1251                     VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1252                     VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1253                     VM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1254
1255         switch (state) {
1256         case AMDGPU_IRQ_STATE_DISABLE:
1257                 /* system context */
1258                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1259                 tmp &= ~bits;
1260                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1261                 /* VMs */
1262                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1263                 tmp &= ~bits;
1264                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1265                 break;
1266         case AMDGPU_IRQ_STATE_ENABLE:
1267                 /* system context */
1268                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1269                 tmp |= bits;
1270                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1271                 /* VMs */
1272                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1273                 tmp |= bits;
1274                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1275                 break;
1276         default:
1277                 break;
1278         }
1279
1280         return 0;
1281 }
1282
1283 static int gmc_v8_0_process_interrupt(struct amdgpu_device *adev,
1284                                       struct amdgpu_irq_src *source,
1285                                       struct amdgpu_iv_entry *entry)
1286 {
1287         u32 addr, status, mc_client;
1288
1289         addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1290         status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1291         mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
1292         /* reset addr and status */
1293         WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1294
1295         if (!addr && !status)
1296                 return 0;
1297
1298         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1299                 gmc_v8_0_set_fault_enable_default(adev, false);
1300
1301         dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1302                 entry->src_id, entry->src_data);
1303         dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1304                 addr);
1305         dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1306                 status);
1307         gmc_v8_0_vm_decode_fault(adev, status, addr, mc_client);
1308
1309         return 0;
1310 }
1311
1312 static void fiji_update_mc_medium_grain_clock_gating(struct amdgpu_device *adev,
1313                 bool enable)
1314 {
1315         uint32_t data;
1316
1317         if (enable) {
1318                 data = RREG32(mmMC_HUB_MISC_HUB_CG);
1319                 data |= MC_HUB_MISC_HUB_CG__ENABLE_MASK;
1320                 WREG32(mmMC_HUB_MISC_HUB_CG, data);
1321
1322                 data = RREG32(mmMC_HUB_MISC_SIP_CG);
1323                 data |= MC_HUB_MISC_SIP_CG__ENABLE_MASK;
1324                 WREG32(mmMC_HUB_MISC_SIP_CG, data);
1325
1326                 data = RREG32(mmMC_HUB_MISC_VM_CG);
1327                 data |= MC_HUB_MISC_VM_CG__ENABLE_MASK;
1328                 WREG32(mmMC_HUB_MISC_VM_CG, data);
1329
1330                 data = RREG32(mmMC_XPB_CLK_GAT);
1331                 data |= MC_XPB_CLK_GAT__ENABLE_MASK;
1332                 WREG32(mmMC_XPB_CLK_GAT, data);
1333
1334                 data = RREG32(mmATC_MISC_CG);
1335                 data |= ATC_MISC_CG__ENABLE_MASK;
1336                 WREG32(mmATC_MISC_CG, data);
1337
1338                 data = RREG32(mmMC_CITF_MISC_WR_CG);
1339                 data |= MC_CITF_MISC_WR_CG__ENABLE_MASK;
1340                 WREG32(mmMC_CITF_MISC_WR_CG, data);
1341
1342                 data = RREG32(mmMC_CITF_MISC_RD_CG);
1343                 data |= MC_CITF_MISC_RD_CG__ENABLE_MASK;
1344                 WREG32(mmMC_CITF_MISC_RD_CG, data);
1345
1346                 data = RREG32(mmMC_CITF_MISC_VM_CG);
1347                 data |= MC_CITF_MISC_VM_CG__ENABLE_MASK;
1348                 WREG32(mmMC_CITF_MISC_VM_CG, data);
1349
1350                 data = RREG32(mmVM_L2_CG);
1351                 data |= VM_L2_CG__ENABLE_MASK;
1352                 WREG32(mmVM_L2_CG, data);
1353         } else {
1354                 data = RREG32(mmMC_HUB_MISC_HUB_CG);
1355                 data &= ~MC_HUB_MISC_HUB_CG__ENABLE_MASK;
1356                 WREG32(mmMC_HUB_MISC_HUB_CG, data);
1357
1358                 data = RREG32(mmMC_HUB_MISC_SIP_CG);
1359                 data &= ~MC_HUB_MISC_SIP_CG__ENABLE_MASK;
1360                 WREG32(mmMC_HUB_MISC_SIP_CG, data);
1361
1362                 data = RREG32(mmMC_HUB_MISC_VM_CG);
1363                 data &= ~MC_HUB_MISC_VM_CG__ENABLE_MASK;
1364                 WREG32(mmMC_HUB_MISC_VM_CG, data);
1365
1366                 data = RREG32(mmMC_XPB_CLK_GAT);
1367                 data &= ~MC_XPB_CLK_GAT__ENABLE_MASK;
1368                 WREG32(mmMC_XPB_CLK_GAT, data);
1369
1370                 data = RREG32(mmATC_MISC_CG);
1371                 data &= ~ATC_MISC_CG__ENABLE_MASK;
1372                 WREG32(mmATC_MISC_CG, data);
1373
1374                 data = RREG32(mmMC_CITF_MISC_WR_CG);
1375                 data &= ~MC_CITF_MISC_WR_CG__ENABLE_MASK;
1376                 WREG32(mmMC_CITF_MISC_WR_CG, data);
1377
1378                 data = RREG32(mmMC_CITF_MISC_RD_CG);
1379                 data &= ~MC_CITF_MISC_RD_CG__ENABLE_MASK;
1380                 WREG32(mmMC_CITF_MISC_RD_CG, data);
1381
1382                 data = RREG32(mmMC_CITF_MISC_VM_CG);
1383                 data &= ~MC_CITF_MISC_VM_CG__ENABLE_MASK;
1384                 WREG32(mmMC_CITF_MISC_VM_CG, data);
1385
1386                 data = RREG32(mmVM_L2_CG);
1387                 data &= ~VM_L2_CG__ENABLE_MASK;
1388                 WREG32(mmVM_L2_CG, data);
1389         }
1390 }
1391
1392 static void fiji_update_mc_light_sleep(struct amdgpu_device *adev,
1393                 bool enable)
1394 {
1395         uint32_t data;
1396
1397         if (enable) {
1398                 data = RREG32(mmMC_HUB_MISC_HUB_CG);
1399                 data |= MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK;
1400                 WREG32(mmMC_HUB_MISC_HUB_CG, data);
1401
1402                 data = RREG32(mmMC_HUB_MISC_SIP_CG);
1403                 data |= MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK;
1404                 WREG32(mmMC_HUB_MISC_SIP_CG, data);
1405
1406                 data = RREG32(mmMC_HUB_MISC_VM_CG);
1407                 data |= MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK;
1408                 WREG32(mmMC_HUB_MISC_VM_CG, data);
1409
1410                 data = RREG32(mmMC_XPB_CLK_GAT);
1411                 data |= MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK;
1412                 WREG32(mmMC_XPB_CLK_GAT, data);
1413
1414                 data = RREG32(mmATC_MISC_CG);
1415                 data |= ATC_MISC_CG__MEM_LS_ENABLE_MASK;
1416                 WREG32(mmATC_MISC_CG, data);
1417
1418                 data = RREG32(mmMC_CITF_MISC_WR_CG);
1419                 data |= MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK;
1420                 WREG32(mmMC_CITF_MISC_WR_CG, data);
1421
1422                 data = RREG32(mmMC_CITF_MISC_RD_CG);
1423                 data |= MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK;
1424                 WREG32(mmMC_CITF_MISC_RD_CG, data);
1425
1426                 data = RREG32(mmMC_CITF_MISC_VM_CG);
1427                 data |= MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK;
1428                 WREG32(mmMC_CITF_MISC_VM_CG, data);
1429
1430                 data = RREG32(mmVM_L2_CG);
1431                 data |= VM_L2_CG__MEM_LS_ENABLE_MASK;
1432                 WREG32(mmVM_L2_CG, data);
1433         } else {
1434                 data = RREG32(mmMC_HUB_MISC_HUB_CG);
1435                 data &= ~MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK;
1436                 WREG32(mmMC_HUB_MISC_HUB_CG, data);
1437
1438                 data = RREG32(mmMC_HUB_MISC_SIP_CG);
1439                 data &= ~MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK;
1440                 WREG32(mmMC_HUB_MISC_SIP_CG, data);
1441
1442                 data = RREG32(mmMC_HUB_MISC_VM_CG);
1443                 data &= ~MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK;
1444                 WREG32(mmMC_HUB_MISC_VM_CG, data);
1445
1446                 data = RREG32(mmMC_XPB_CLK_GAT);
1447                 data &= ~MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK;
1448                 WREG32(mmMC_XPB_CLK_GAT, data);
1449
1450                 data = RREG32(mmATC_MISC_CG);
1451                 data &= ~ATC_MISC_CG__MEM_LS_ENABLE_MASK;
1452                 WREG32(mmATC_MISC_CG, data);
1453
1454                 data = RREG32(mmMC_CITF_MISC_WR_CG);
1455                 data &= ~MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK;
1456                 WREG32(mmMC_CITF_MISC_WR_CG, data);
1457
1458                 data = RREG32(mmMC_CITF_MISC_RD_CG);
1459                 data &= ~MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK;
1460                 WREG32(mmMC_CITF_MISC_RD_CG, data);
1461
1462                 data = RREG32(mmMC_CITF_MISC_VM_CG);
1463                 data &= ~MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK;
1464                 WREG32(mmMC_CITF_MISC_VM_CG, data);
1465
1466                 data = RREG32(mmVM_L2_CG);
1467                 data &= ~VM_L2_CG__MEM_LS_ENABLE_MASK;
1468                 WREG32(mmVM_L2_CG, data);
1469         }
1470 }
1471
1472 static int gmc_v8_0_set_clockgating_state(void *handle,
1473                                           enum amd_clockgating_state state)
1474 {
1475         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1476
1477         switch (adev->asic_type) {
1478         case CHIP_FIJI:
1479                 fiji_update_mc_medium_grain_clock_gating(adev,
1480                                 state == AMD_CG_STATE_GATE ? true : false);
1481                 fiji_update_mc_light_sleep(adev,
1482                                 state == AMD_CG_STATE_GATE ? true : false);
1483                 break;
1484         default:
1485                 break;
1486         }
1487         return 0;
1488 }
1489
1490 static int gmc_v8_0_set_powergating_state(void *handle,
1491                                           enum amd_powergating_state state)
1492 {
1493         return 0;
1494 }
1495
1496 const struct amd_ip_funcs gmc_v8_0_ip_funcs = {
1497         .early_init = gmc_v8_0_early_init,
1498         .late_init = gmc_v8_0_late_init,
1499         .sw_init = gmc_v8_0_sw_init,
1500         .sw_fini = gmc_v8_0_sw_fini,
1501         .hw_init = gmc_v8_0_hw_init,
1502         .hw_fini = gmc_v8_0_hw_fini,
1503         .suspend = gmc_v8_0_suspend,
1504         .resume = gmc_v8_0_resume,
1505         .is_idle = gmc_v8_0_is_idle,
1506         .wait_for_idle = gmc_v8_0_wait_for_idle,
1507         .soft_reset = gmc_v8_0_soft_reset,
1508         .print_status = gmc_v8_0_print_status,
1509         .set_clockgating_state = gmc_v8_0_set_clockgating_state,
1510         .set_powergating_state = gmc_v8_0_set_powergating_state,
1511 };
1512
1513 static const struct amdgpu_gart_funcs gmc_v8_0_gart_funcs = {
1514         .flush_gpu_tlb = gmc_v8_0_gart_flush_gpu_tlb,
1515         .set_pte_pde = gmc_v8_0_gart_set_pte_pde,
1516 };
1517
1518 static const struct amdgpu_irq_src_funcs gmc_v8_0_irq_funcs = {
1519         .set = gmc_v8_0_vm_fault_interrupt_state,
1520         .process = gmc_v8_0_process_interrupt,
1521 };
1522
1523 static void gmc_v8_0_set_gart_funcs(struct amdgpu_device *adev)
1524 {
1525         if (adev->gart.gart_funcs == NULL)
1526                 adev->gart.gart_funcs = &gmc_v8_0_gart_funcs;
1527 }
1528
1529 static void gmc_v8_0_set_irq_funcs(struct amdgpu_device *adev)
1530 {
1531         adev->mc.vm_fault.num_types = 1;
1532         adev->mc.vm_fault.funcs = &gmc_v8_0_irq_funcs;
1533 }