drivers/gpu/drm/amd/amdgpu/gfxhub_v3_0.c

   1 /*
   2  * Copyright 2021 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
  24 #include "amdgpu.h"
  25 #include "gfxhub_v3_0.h"
  26
  27 #include "gc/gc_11_0_0_offset.h"
  28 #include "gc/gc_11_0_0_sh_mask.h"
  29 #include "navi10_enum.h"
  30 #include "soc15_common.h"
  31
  32 #define regGCVM_L2_CNTL3_DEFAULT                0x80100007
  33 #define regGCVM_L2_CNTL4_DEFAULT                0x000000c1
  34 #define regGCVM_L2_CNTL5_DEFAULT                0x00003fe0
  35
  36 static const char *gfxhub_client_ids[] = {
  37         "CB/DB",
  38         "Reserved",
  39         "GE1",
  40         "GE2",
  41         "CPF",
  42         "CPC",
  43         "CPG",
  44         "RLC",
  45         "TCP",
  46         "SQC (inst)",
  47         "SQC (data)",
  48         "SQG",
  49         "Reserved",
  50         "SDMA0",
  51         "SDMA1",
  52         "GCR",
  53         "SDMA2",
  54         "SDMA3",
  55 };
  56
  57 static uint32_t gfxhub_v3_0_get_invalidate_req(unsigned int vmid,
  58                                                uint32_t flush_type)
  59 {
  60         u32 req = 0;
  61
  62         /* invalidate using legacy mode on vmid*/
  63         req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ,
  64                             PER_VMID_INVALIDATE_REQ, 1 << vmid);
  65         req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, flush_type);
  66         req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PTES, 1);
  67         req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE0, 1);
  68         req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE1, 1);
  69         req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE2, 1);
  70         req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L1_PTES, 1);
  71         req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ,
  72                             CLEAR_PROTECTION_FAULT_STATUS_ADDR, 0);
  73
  74         return req;
  75 }
  76
  77 static void
  78 gfxhub_v3_0_print_l2_protection_fault_status(struct amdgpu_device *adev,
  79                                              uint32_t status)
  80 {
  81         u32 cid = REG_GET_FIELD(status,
  82                                 GCVM_L2_PROTECTION_FAULT_STATUS, CID);
  83
  84         dev_err(adev->dev,
  85                 "GCVM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
  86                 status);
  87         dev_err(adev->dev, "\t Faulty UTCL2 client ID: %s (0x%x)\n",
  88                 cid >= ARRAY_SIZE(gfxhub_client_ids) ? "unknown" : gfxhub_client_ids[cid],
  89                 cid);
  90         dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n",
  91                 REG_GET_FIELD(status,
  92                 GCVM_L2_PROTECTION_FAULT_STATUS, MORE_FAULTS));
  93         dev_err(adev->dev, "\t WALKER_ERROR: 0x%lx\n",
  94                 REG_GET_FIELD(status,
  95                 GCVM_L2_PROTECTION_FAULT_STATUS, WALKER_ERROR));
  96         dev_err(adev->dev, "\t PERMISSION_FAULTS: 0x%lx\n",
  97                 REG_GET_FIELD(status,
  98                 GCVM_L2_PROTECTION_FAULT_STATUS, PERMISSION_FAULTS));
  99         dev_err(adev->dev, "\t MAPPING_ERROR: 0x%lx\n",
 100                 REG_GET_FIELD(status,
 101                 GCVM_L2_PROTECTION_FAULT_STATUS, MAPPING_ERROR));
 102         dev_err(adev->dev, "\t RW: 0x%lx\n",
 103                 REG_GET_FIELD(status,
 104                 GCVM_L2_PROTECTION_FAULT_STATUS, RW));
 105 }
 106
 107 static u64 gfxhub_v3_0_get_fb_location(struct amdgpu_device *adev)
 108 {
 109         u64 base = RREG32_SOC15(GC, 0, regGCMC_VM_FB_LOCATION_BASE);
 110
 111         base &= GCMC_VM_FB_LOCATION_BASE__FB_BASE_MASK;
 112         base <<= 24;
 113
 114         return base;
 115 }
 116
 117 static u64 gfxhub_v3_0_get_mc_fb_offset(struct amdgpu_device *adev)
 118 {
 119         return (u64)RREG32_SOC15(GC, 0, regGCMC_VM_FB_OFFSET) << 24;
 120 }
 121
 122 static void gfxhub_v3_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
 123                                 uint64_t page_table_base)
 124 {
 125         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0];
 126
 127         WREG32_SOC15_OFFSET(GC, 0, regGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
 128                             hub->ctx_addr_distance * vmid,
 129                             lower_32_bits(page_table_base));
 130
 131         WREG32_SOC15_OFFSET(GC, 0, regGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
 132                             hub->ctx_addr_distance * vmid,
 133                             upper_32_bits(page_table_base));
 134 }
 135
 136 static void gfxhub_v3_0_init_gart_aperture_regs(struct amdgpu_device *adev)
 137 {
 138         uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo);
 139
 140         gfxhub_v3_0_setup_vm_pt_regs(adev, 0, pt_base);
 141
 142         WREG32_SOC15(GC, 0, regGCVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32,
 143                      (u32)(adev->gmc.gart_start >> 12));
 144         WREG32_SOC15(GC, 0, regGCVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32,
 145                      (u32)(adev->gmc.gart_start >> 44));
 146
 147         WREG32_SOC15(GC, 0, regGCVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32,
 148                      (u32)(adev->gmc.gart_end >> 12));
 149         WREG32_SOC15(GC, 0, regGCVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32,
 150                      (u32)(adev->gmc.gart_end >> 44));
 151 }
 152
 153 static void gfxhub_v3_0_init_system_aperture_regs(struct amdgpu_device *adev)
 154 {
 155         uint64_t value;
 156
 157         /* Disable AGP. */
 158         WREG32_SOC15(GC, 0, regGCMC_VM_AGP_BASE, 0);
 159         WREG32_SOC15(GC, 0, regGCMC_VM_AGP_TOP, 0);
 160         WREG32_SOC15(GC, 0, regGCMC_VM_AGP_BOT, 0x00FFFFFF);
 161
 162         /* Program the system aperture low logical page number. */
 163         WREG32_SOC15(GC, 0, regGCMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 164                      adev->gmc.vram_start >> 18);
 165         WREG32_SOC15(GC, 0, regGCMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 166                      adev->gmc.vram_end >> 18);
 167
 168         /* Set default page address. */
 169         value = adev->vram_scratch.gpu_addr - adev->gmc.vram_start
 170                 + adev->vm_manager.vram_base_offset;
 171         WREG32_SOC15(GC, 0, regGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
 172                      (u32)(value >> 12));
 173         WREG32_SOC15(GC, 0, regGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
 174                      (u32)(value >> 44));
 175
 176         /* Program "protection fault". */
 177         WREG32_SOC15(GC, 0, regGCVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
 178                      (u32)(adev->dummy_page_addr >> 12));
 179         WREG32_SOC15(GC, 0, regGCVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
 180                      (u32)((u64)adev->dummy_page_addr >> 44));
 181
 182         WREG32_FIELD15_PREREG(GC, 0, GCVM_L2_PROTECTION_FAULT_CNTL2,
 183                        ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
 184 }
 185
 186
 187 static void gfxhub_v3_0_init_tlb_regs(struct amdgpu_device *adev)
 188 {
 189         uint32_t tmp;
 190
 191         /* Setup TLB control */
 192         tmp = RREG32_SOC15(GC, 0, regGCMC_VM_MX_L1_TLB_CNTL);
 193
 194         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 195         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 196         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
 197                             ENABLE_ADVANCED_DRIVER_MODEL, 1);
 198         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
 199                             SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 200         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
 201         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
 202                             MTYPE, MTYPE_UC); /* UC, uncached */
 203
 204         WREG32_SOC15(GC, 0, regGCMC_VM_MX_L1_TLB_CNTL, tmp);
 205 }
 206
 207 static void gfxhub_v3_0_init_cache_regs(struct amdgpu_device *adev)
 208 {
 209         uint32_t tmp;
 210
 211         /* These registers are not accessible to VF-SRIOV.
 212          * The PF will program them instead.
 213          */
 214         if (amdgpu_sriov_vf(adev))
 215                 return;
 216
 217         /* Setup L2 cache */
 218         tmp = RREG32_SOC15(GC, 0, regGCVM_L2_CNTL);
 219         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_CACHE, 1);
 220         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 0);
 221         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL,
 222                             ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 223         /* XXX for emulation, Refer to closed source code.*/
 224         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL,
 225                             L2_PDE0_CACHE_TAG_GENERATION_MODE, 0);
 226         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 0);
 227         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 228         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0);
 229         WREG32_SOC15(GC, 0, regGCVM_L2_CNTL, tmp);
 230
 231         tmp = RREG32_SOC15(GC, 0, regGCVM_L2_CNTL2);
 232         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 233         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 234         WREG32_SOC15(GC, 0, regGCVM_L2_CNTL2, tmp);
 235
 236         tmp = regGCVM_L2_CNTL3_DEFAULT;
 237         if (adev->gmc.translate_further) {
 238                 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3, BANK_SELECT, 12);
 239                 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3,
 240                                     L2_CACHE_BIGK_FRAGMENT_SIZE, 9);
 241         } else {
 242                 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3, BANK_SELECT, 9);
 243                 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3,
 244                                     L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
 245         }
 246         WREG32_SOC15(GC, 0, regGCVM_L2_CNTL3, tmp);
 247
 248         tmp = regGCVM_L2_CNTL4_DEFAULT;
 249         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
 250         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);
 251         WREG32_SOC15(GC, 0, regGCVM_L2_CNTL4, tmp);
 252
 253         tmp = regGCVM_L2_CNTL5_DEFAULT;
 254         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL5, L2_CACHE_SMALLK_FRAGMENT_SIZE, 0);
 255         WREG32_SOC15(GC, 0, regGCVM_L2_CNTL5, tmp);
 256 }
 257
 258 static void gfxhub_v3_0_enable_system_domain(struct amdgpu_device *adev)
 259 {
 260         uint32_t tmp;
 261
 262         tmp = RREG32_SOC15(GC, 0, regGCVM_CONTEXT0_CNTL);
 263         tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 264         tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 265         tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL,
 266                             RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
 267         WREG32_SOC15(GC, 0, regGCVM_CONTEXT0_CNTL, tmp);
 268 }
 269
 270 static void gfxhub_v3_0_disable_identity_aperture(struct amdgpu_device *adev)
 271 {
 272         /* These registers are not accessible to VF-SRIOV.
 273          * The PF will program them instead.
 274          */
 275         if (amdgpu_sriov_vf(adev))
 276                 return;
 277
 278         WREG32_SOC15(GC, 0, regGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32,
 279                      0xFFFFFFFF);
 280         WREG32_SOC15(GC, 0, regGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32,
 281                      0x0000000F);
 282
 283         WREG32_SOC15(GC, 0, regGCVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32,
 284                      0);
 285         WREG32_SOC15(GC, 0, regGCVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32,
 286                      0);
 287
 288         WREG32_SOC15(GC, 0, regGCVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32, 0);
 289         WREG32_SOC15(GC, 0, regGCVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32, 0);
 290
 291 }
 292
 293 static void gfxhub_v3_0_setup_vmid_config(struct amdgpu_device *adev)
 294 {
 295         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0];
 296         int i;
 297         uint32_t tmp;
 298
 299         for (i = 0; i <= 14; i++) {
 300                 tmp = RREG32_SOC15_OFFSET(GC, 0, regGCVM_CONTEXT1_CNTL, i);
 301                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 302                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,
 303                                     adev->vm_manager.num_level);
 304                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 305                                 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 306                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 307                                 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 308                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 309                                 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 310                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 311                                 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 312                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 313                                 READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 314                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 315                                 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 316                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 317                                 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 318                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 319                                 PAGE_TABLE_BLOCK_SIZE,
 320                                 adev->vm_manager.block_size - 9);
 321                 /* Send no-retry XNACK on fault to suppress VM fault storm. */
 322                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 323                                     RETRY_PERMISSION_OR_INVALID_PAGE_FAULT,
 324                                     !amdgpu_noretry);
 325                 WREG32_SOC15_OFFSET(GC, 0, regGCVM_CONTEXT1_CNTL,
 326                                     i * hub->ctx_distance, tmp);
 327                 WREG32_SOC15_OFFSET(GC, 0, regGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32,
 328                                     i * hub->ctx_addr_distance, 0);
 329                 WREG32_SOC15_OFFSET(GC, 0, regGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32,
 330                                     i * hub->ctx_addr_distance, 0);
 331                 WREG32_SOC15_OFFSET(GC, 0, regGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32,
 332                                     i * hub->ctx_addr_distance,
 333                                     lower_32_bits(adev->vm_manager.max_pfn - 1));
 334                 WREG32_SOC15_OFFSET(GC, 0, regGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32,
 335                                     i * hub->ctx_addr_distance,
 336                                     upper_32_bits(adev->vm_manager.max_pfn - 1));
 337         }
 338
 339         hub->vm_cntx_cntl = tmp;
 340 }
 341
 342 static void gfxhub_v3_0_program_invalidation(struct amdgpu_device *adev)
 343 {
 344         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0];
 345         unsigned i;
 346
 347         for (i = 0 ; i < 18; ++i) {
 348                 WREG32_SOC15_OFFSET(GC, 0, regGCVM_INVALIDATE_ENG0_ADDR_RANGE_LO32,
 349                                     i * hub->eng_addr_distance, 0xffffffff);
 350                 WREG32_SOC15_OFFSET(GC, 0, regGCVM_INVALIDATE_ENG0_ADDR_RANGE_HI32,
 351                                     i * hub->eng_addr_distance, 0x1f);
 352         }
 353 }
 354
 355 static int gfxhub_v3_0_gart_enable(struct amdgpu_device *adev)
 356 {
 357         if (amdgpu_sriov_vf(adev)) {
 358                 /*
 359                  * GCMC_VM_FB_LOCATION_BASE/TOP is NULL for VF, becuase they are
 360                  * VF copy registers so vbios post doesn't program them, for
 361                  * SRIOV driver need to program them
 362                  */
 363                 WREG32_SOC15(GC, 0, regGCMC_VM_FB_LOCATION_BASE,
 364                              adev->gmc.vram_start >> 24);
 365                 WREG32_SOC15(GC, 0, regGCMC_VM_FB_LOCATION_TOP,
 366                              adev->gmc.vram_end >> 24);
 367         }
 368
 369         /* GART Enable. */
 370         gfxhub_v3_0_init_gart_aperture_regs(adev);
 371         gfxhub_v3_0_init_system_aperture_regs(adev);
 372         gfxhub_v3_0_init_tlb_regs(adev);
 373         gfxhub_v3_0_init_cache_regs(adev);
 374
 375         gfxhub_v3_0_enable_system_domain(adev);
 376         gfxhub_v3_0_disable_identity_aperture(adev);
 377         gfxhub_v3_0_setup_vmid_config(adev);
 378         gfxhub_v3_0_program_invalidation(adev);
 379
 380         return 0;
 381 }
 382
 383 static void gfxhub_v3_0_gart_disable(struct amdgpu_device *adev)
 384 {
 385         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0];
 386         u32 tmp;
 387         u32 i;
 388
 389         /* Disable all tables */
 390         for (i = 0; i < 16; i++)
 391                 WREG32_SOC15_OFFSET(GC, 0, regGCVM_CONTEXT0_CNTL,
 392                                     i * hub->ctx_distance, 0);
 393
 394         /* Setup TLB control */
 395         tmp = RREG32_SOC15(GC, 0, regGCMC_VM_MX_L1_TLB_CNTL);
 396         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 397         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
 398                             ENABLE_ADVANCED_DRIVER_MODEL, 0);
 399         WREG32_SOC15(GC, 0, regGCMC_VM_MX_L1_TLB_CNTL, tmp);
 400
 401         /* Setup L2 cache */
 402         WREG32_FIELD15_PREREG(GC, 0, GCVM_L2_CNTL, ENABLE_L2_CACHE, 0);
 403         WREG32_SOC15(GC, 0, regGCVM_L2_CNTL3, 0);
 404 }
 405
 406 /**
 407  * gfxhub_v3_0_set_fault_enable_default - update GART/VM fault handling
 408  *
 409  * @adev: amdgpu_device pointer
 410  * @value: true redirects VM faults to the default page
 411  */
 412 static void gfxhub_v3_0_set_fault_enable_default(struct amdgpu_device *adev,
 413                                           bool value)
 414 {
 415         u32 tmp;
 416
 417         /* These registers are not accessible to VF-SRIOV.
 418          * The PF will program them instead.
 419          */
 420         if (amdgpu_sriov_vf(adev))
 421                 return;
 422
 423         tmp = RREG32_SOC15(GC, 0, regGCVM_L2_PROTECTION_FAULT_CNTL);
 424         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 425                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 426         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 427                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 428         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 429                             PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 430         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 431                             PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 432         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 433                             TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT,
 434                             value);
 435         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 436                             NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 437         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 438                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 439         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 440                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 441         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 442                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 443         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 444                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 445         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 446                             EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 447         if (!value) {
 448                 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 449                                 CRASH_ON_NO_RETRY_FAULT, 1);
 450                 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 451                                 CRASH_ON_RETRY_FAULT, 1);
 452         }
 453         WREG32_SOC15(GC, 0, regGCVM_L2_PROTECTION_FAULT_CNTL, tmp);
 454 }
 455
 456 static const struct amdgpu_vmhub_funcs gfxhub_v3_0_vmhub_funcs = {
 457         .print_l2_protection_fault_status = gfxhub_v3_0_print_l2_protection_fault_status,
 458         .get_invalidate_req = gfxhub_v3_0_get_invalidate_req,
 459 };
 460
 461 static void gfxhub_v3_0_init(struct amdgpu_device *adev)
 462 {
 463         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0];
 464
 465         hub->ctx0_ptb_addr_lo32 =
 466                 SOC15_REG_OFFSET(GC, 0,
 467                                  regGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32);
 468         hub->ctx0_ptb_addr_hi32 =
 469                 SOC15_REG_OFFSET(GC, 0,
 470                                  regGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32);
 471         hub->vm_inv_eng0_sem =
 472                 SOC15_REG_OFFSET(GC, 0, regGCVM_INVALIDATE_ENG0_SEM);
 473         hub->vm_inv_eng0_req =
 474                 SOC15_REG_OFFSET(GC, 0, regGCVM_INVALIDATE_ENG0_REQ);
 475         hub->vm_inv_eng0_ack =
 476                 SOC15_REG_OFFSET(GC, 0, regGCVM_INVALIDATE_ENG0_ACK);
 477         hub->vm_context0_cntl =
 478                 SOC15_REG_OFFSET(GC, 0, regGCVM_CONTEXT0_CNTL);
 479         hub->vm_l2_pro_fault_status =
 480                 SOC15_REG_OFFSET(GC, 0, regGCVM_L2_PROTECTION_FAULT_STATUS);
 481         hub->vm_l2_pro_fault_cntl =
 482                 SOC15_REG_OFFSET(GC, 0, regGCVM_L2_PROTECTION_FAULT_CNTL);
 483
 484         hub->ctx_distance = regGCVM_CONTEXT1_CNTL - regGCVM_CONTEXT0_CNTL;
 485         hub->ctx_addr_distance = regGCVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32 -
 486                 regGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32;
 487         hub->eng_distance = regGCVM_INVALIDATE_ENG1_REQ -
 488                 regGCVM_INVALIDATE_ENG0_REQ;
 489         hub->eng_addr_distance = regGCVM_INVALIDATE_ENG1_ADDR_RANGE_LO32 -
 490                 regGCVM_INVALIDATE_ENG0_ADDR_RANGE_LO32;
 491
 492         hub->vm_cntx_cntl_vm_fault = GCVM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 493                 GCVM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 494                 GCVM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 495                 GCVM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 496                 GCVM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 497                 GCVM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 498                 GCVM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK;
 499
 500         hub->vmhub_funcs = &gfxhub_v3_0_vmhub_funcs;
 501 }
 502
 503 const struct amdgpu_gfxhub_funcs gfxhub_v3_0_funcs = {
 504         .get_fb_location = gfxhub_v3_0_get_fb_location,
 505         .get_mc_fb_offset = gfxhub_v3_0_get_mc_fb_offset,
 506         .setup_vm_pt_regs = gfxhub_v3_0_setup_vm_pt_regs,
 507         .gart_enable = gfxhub_v3_0_gart_enable,
 508         .gart_disable = gfxhub_v3_0_gart_disable,
 509         .set_fault_enable_default = gfxhub_v3_0_set_fault_enable_default,
 510         .init = gfxhub_v3_0_init,
 511 };