drivers/gpu/drm/amd/amdgpu/gfxhub_v2_0.c

   1 /*
   2  * Copyright 2019 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_v2_0.h"
  26
  27 #include "gc/gc_10_1_0_offset.h"
  28 #include "gc/gc_10_1_0_sh_mask.h"
  29 #include "gc/gc_10_1_0_default.h"
  30 #include "navi10_enum.h"
  31
  32 #include "soc15_common.h"
  33
  34 static const char * const gfxhub_client_ids[] = {
  35         "CB/DB",
  36         "Reserved",
  37         "GE1",
  38         "GE2",
  39         "CPF",
  40         "CPC",
  41         "CPG",
  42         "RLC",
  43         "TCP",
  44         "SQC (inst)",
  45         "SQC (data)",
  46         "SQG",
  47         "Reserved",
  48         "SDMA0",
  49         "SDMA1",
  50         "GCR",
  51         "SDMA2",
  52         "SDMA3",
  53 };
  54
  55 static uint32_t gfxhub_v2_0_get_invalidate_req(unsigned int vmid,
  56                                                uint32_t flush_type)
  57 {
  58         u32 req = 0;
  59
  60         /* invalidate using legacy mode on vmid*/
  61         req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ,
  62                             PER_VMID_INVALIDATE_REQ, 1 << vmid);
  63         req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, flush_type);
  64         req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PTES, 1);
  65         req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE0, 1);
  66         req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE1, 1);
  67         req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE2, 1);
  68         req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L1_PTES, 1);
  69         req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ,
  70                             CLEAR_PROTECTION_FAULT_STATUS_ADDR, 0);
  71
  72         return req;
  73 }
  74
  75 static void
  76 gfxhub_v2_0_print_l2_protection_fault_status(struct amdgpu_device *adev,
  77                                              uint32_t status)
  78 {
  79         u32 cid = REG_GET_FIELD(status,
  80                                 GCVM_L2_PROTECTION_FAULT_STATUS, CID);
  81
  82         dev_err(adev->dev,
  83                 "GCVM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
  84                 status);
  85         dev_err(adev->dev, "\t Faulty UTCL2 client ID: %s (0x%x)\n",
  86                 cid >= ARRAY_SIZE(gfxhub_client_ids) ? "unknown" : gfxhub_client_ids[cid],
  87                 cid);
  88         dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n",
  89                 REG_GET_FIELD(status,
  90                 GCVM_L2_PROTECTION_FAULT_STATUS, MORE_FAULTS));
  91         dev_err(adev->dev, "\t WALKER_ERROR: 0x%lx\n",
  92                 REG_GET_FIELD(status,
  93                 GCVM_L2_PROTECTION_FAULT_STATUS, WALKER_ERROR));
  94         dev_err(adev->dev, "\t PERMISSION_FAULTS: 0x%lx\n",
  95                 REG_GET_FIELD(status,
  96                 GCVM_L2_PROTECTION_FAULT_STATUS, PERMISSION_FAULTS));
  97         dev_err(adev->dev, "\t MAPPING_ERROR: 0x%lx\n",
  98                 REG_GET_FIELD(status,
  99                 GCVM_L2_PROTECTION_FAULT_STATUS, MAPPING_ERROR));
 100         dev_err(adev->dev, "\t RW: 0x%lx\n",
 101                 REG_GET_FIELD(status,
 102                 GCVM_L2_PROTECTION_FAULT_STATUS, RW));
 103 }
 104
 105 static u64 gfxhub_v2_0_get_fb_location(struct amdgpu_device *adev)
 106 {
 107         u64 base = RREG32_SOC15(GC, 0, mmGCMC_VM_FB_LOCATION_BASE);
 108
 109         base &= GCMC_VM_FB_LOCATION_BASE__FB_BASE_MASK;
 110         base <<= 24;
 111
 112         return base;
 113 }
 114
 115 static u64 gfxhub_v2_0_get_mc_fb_offset(struct amdgpu_device *adev)
 116 {
 117         return (u64)RREG32_SOC15(GC, 0, mmGCMC_VM_FB_OFFSET) << 24;
 118 }
 119
 120 static void gfxhub_v2_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
 121                                 uint64_t page_table_base)
 122 {
 123         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB(0)];
 124
 125         WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
 126                             hub->ctx_addr_distance * vmid,
 127                             lower_32_bits(page_table_base));
 128
 129         WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
 130                             hub->ctx_addr_distance * vmid,
 131                             upper_32_bits(page_table_base));
 132 }
 133
 134 static void gfxhub_v2_0_init_gart_aperture_regs(struct amdgpu_device *adev)
 135 {
 136         uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo);
 137
 138         gfxhub_v2_0_setup_vm_pt_regs(adev, 0, pt_base);
 139
 140         WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32,
 141                      (u32)(adev->gmc.gart_start >> 12));
 142         WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32,
 143                      (u32)(adev->gmc.gart_start >> 44));
 144
 145         WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32,
 146                      (u32)(adev->gmc.gart_end >> 12));
 147         WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32,
 148                      (u32)(adev->gmc.gart_end >> 44));
 149 }
 150
 151 static void gfxhub_v2_0_init_system_aperture_regs(struct amdgpu_device *adev)
 152 {
 153         uint64_t value;
 154
 155         if (!amdgpu_sriov_vf(adev)) {
 156                 /* Program the AGP BAR */
 157                 WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BASE, 0);
 158                 WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BOT, adev->gmc.agp_start >> 24);
 159                 WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_TOP, adev->gmc.agp_end >> 24);
 160
 161                 /* Program the system aperture low logical page number. */
 162                 WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 163                              min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18);
 164                 WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 165                              max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18);
 166
 167                 /* Set default page address. */
 168                 value = amdgpu_gmc_vram_mc2pa(adev, adev->mem_scratch.gpu_addr);
 169                 WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
 170                              (u32)(value >> 12));
 171                 WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
 172                              (u32)(value >> 44));
 173         }
 174
 175         /* Program "protection fault". */
 176         WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
 177                      (u32)(adev->dummy_page_addr >> 12));
 178         WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
 179                      (u32)((u64)adev->dummy_page_addr >> 44));
 180
 181         WREG32_FIELD15(GC, 0, GCVM_L2_PROTECTION_FAULT_CNTL2,
 182                        ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
 183 }
 184
 185
 186 static void gfxhub_v2_0_init_tlb_regs(struct amdgpu_device *adev)
 187 {
 188         uint32_t tmp;
 189
 190         /* Setup TLB control */
 191         tmp = RREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL);
 192
 193         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 194         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 195         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
 196                             ENABLE_ADVANCED_DRIVER_MODEL, 1);
 197         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
 198                             SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 199         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
 200                             MTYPE, MTYPE_UC); /* UC, uncached */
 201
 202         WREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL, tmp);
 203 }
 204
 205 static void gfxhub_v2_0_init_cache_regs(struct amdgpu_device *adev)
 206 {
 207         uint32_t tmp;
 208
 209         /* These regs are not accessible for VF, PF will program these in SRIOV */
 210         if (amdgpu_sriov_vf(adev))
 211                 return;
 212
 213         /* Setup L2 cache */
 214         tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_CNTL);
 215         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_CACHE, 1);
 216         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 0);
 217         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL,
 218                             ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 219         /* XXX for emulation, Refer to closed source code.*/
 220         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL,
 221                             L2_PDE0_CACHE_TAG_GENERATION_MODE, 0);
 222         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 0);
 223         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 224         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0);
 225         WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL, tmp);
 226
 227         tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_CNTL2);
 228         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 229         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 230         WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL2, tmp);
 231
 232         tmp = mmGCVM_L2_CNTL3_DEFAULT;
 233         if (adev->gmc.translate_further) {
 234                 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3, BANK_SELECT, 12);
 235                 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3,
 236                                     L2_CACHE_BIGK_FRAGMENT_SIZE, 9);
 237         } else {
 238                 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3, BANK_SELECT, 9);
 239                 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3,
 240                                     L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
 241         }
 242         WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, tmp);
 243
 244         tmp = mmGCVM_L2_CNTL4_DEFAULT;
 245         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
 246         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);
 247         WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL4, tmp);
 248
 249         tmp = mmGCVM_L2_CNTL5_DEFAULT;
 250         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL5, L2_CACHE_SMALLK_FRAGMENT_SIZE, 0);
 251         WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL5, tmp);
 252 }
 253
 254 static void gfxhub_v2_0_enable_system_domain(struct amdgpu_device *adev)
 255 {
 256         uint32_t tmp;
 257
 258         tmp = RREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_CNTL);
 259         tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 260         tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 261         tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL,
 262                             RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
 263         WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_CNTL, tmp);
 264 }
 265
 266 static void gfxhub_v2_0_disable_identity_aperture(struct amdgpu_device *adev)
 267 {
 268         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32,
 269                      0xFFFFFFFF);
 270         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32,
 271                      0x0000000F);
 272
 273         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32,
 274                      0);
 275         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32,
 276                      0);
 277
 278         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32, 0);
 279         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32, 0);
 280
 281 }
 282
 283 static void gfxhub_v2_0_setup_vmid_config(struct amdgpu_device *adev)
 284 {
 285         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB(0)];
 286         int i;
 287         uint32_t tmp;
 288
 289         for (i = 0; i <= 14; i++) {
 290                 tmp = RREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_CNTL, i * hub->ctx_distance);
 291                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 292                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,
 293                                     adev->vm_manager.num_level);
 294                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 295                                 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 296                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 297                                 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 298                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 299                                 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 300                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 301                                 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 302                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 303                                 READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 304                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 305                                 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 306                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 307                                 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 308                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 309                                 PAGE_TABLE_BLOCK_SIZE,
 310                                 adev->vm_manager.block_size - 9);
 311                 /* Send no-retry XNACK on fault to suppress VM fault storm. */
 312                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 313                                     RETRY_PERMISSION_OR_INVALID_PAGE_FAULT,
 314                                     !adev->gmc.noretry);
 315                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_CNTL,
 316                                     i * hub->ctx_distance, tmp);
 317                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32,
 318                                     i * hub->ctx_addr_distance, 0);
 319                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32,
 320                                     i * hub->ctx_addr_distance, 0);
 321                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32,
 322                                     i * hub->ctx_addr_distance,
 323                                     lower_32_bits(adev->vm_manager.max_pfn - 1));
 324                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32,
 325                                     i * hub->ctx_addr_distance,
 326                                     upper_32_bits(adev->vm_manager.max_pfn - 1));
 327         }
 328
 329         hub->vm_cntx_cntl = tmp;
 330 }
 331
 332 static void gfxhub_v2_0_program_invalidation(struct amdgpu_device *adev)
 333 {
 334         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB(0)];
 335         unsigned int i;
 336
 337         for (i = 0 ; i < 18; ++i) {
 338                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ADDR_RANGE_LO32,
 339                                     i * hub->eng_addr_distance, 0xffffffff);
 340                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ADDR_RANGE_HI32,
 341                                     i * hub->eng_addr_distance, 0x1f);
 342         }
 343 }
 344
 345 static int gfxhub_v2_0_gart_enable(struct amdgpu_device *adev)
 346 {
 347         /* GART Enable. */
 348         gfxhub_v2_0_init_gart_aperture_regs(adev);
 349         gfxhub_v2_0_init_system_aperture_regs(adev);
 350         gfxhub_v2_0_init_tlb_regs(adev);
 351         gfxhub_v2_0_init_cache_regs(adev);
 352
 353         gfxhub_v2_0_enable_system_domain(adev);
 354         gfxhub_v2_0_disable_identity_aperture(adev);
 355         gfxhub_v2_0_setup_vmid_config(adev);
 356         gfxhub_v2_0_program_invalidation(adev);
 357
 358         return 0;
 359 }
 360
 361 static void gfxhub_v2_0_gart_disable(struct amdgpu_device *adev)
 362 {
 363         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB(0)];
 364         u32 tmp;
 365         u32 i;
 366
 367         /* Disable all tables */
 368         for (i = 0; i < 16; i++)
 369                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_CNTL,
 370                                     i * hub->ctx_distance, 0);
 371
 372         /* Setup TLB control */
 373         tmp = RREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL);
 374         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 375         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
 376                             ENABLE_ADVANCED_DRIVER_MODEL, 0);
 377         WREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL, tmp);
 378
 379         if (!amdgpu_sriov_vf(adev)) {
 380                 /* Setup L2 cache */
 381                 WREG32_FIELD15(GC, 0, GCVM_L2_CNTL, ENABLE_L2_CACHE, 0);
 382                 WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, 0);
 383         }
 384 }
 385
 386 /**
 387  * gfxhub_v2_0_set_fault_enable_default - update GART/VM fault handling
 388  *
 389  * @adev: amdgpu_device pointer
 390  * @value: true redirects VM faults to the default page
 391  */
 392 static void gfxhub_v2_0_set_fault_enable_default(struct amdgpu_device *adev,
 393                                           bool value)
 394 {
 395         u32 tmp;
 396
 397         tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL);
 398         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 399                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 400         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 401                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 402         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 403                             PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 404         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 405                             PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 406         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 407                             TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT,
 408                             value);
 409         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 410                             NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 411         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 412                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 413         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 414                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 415         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 416                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 417         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 418                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 419         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 420                             EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 421         if (!value) {
 422                 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 423                                 CRASH_ON_NO_RETRY_FAULT, 1);
 424                 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 425                                 CRASH_ON_RETRY_FAULT, 1);
 426         }
 427         WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL, tmp);
 428 }
 429
 430 static const struct amdgpu_vmhub_funcs gfxhub_v2_0_vmhub_funcs = {
 431         .print_l2_protection_fault_status = gfxhub_v2_0_print_l2_protection_fault_status,
 432         .get_invalidate_req = gfxhub_v2_0_get_invalidate_req,
 433 };
 434
 435 static void gfxhub_v2_0_init(struct amdgpu_device *adev)
 436 {
 437         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB(0)];
 438
 439         hub->ctx0_ptb_addr_lo32 =
 440                 SOC15_REG_OFFSET(GC, 0,
 441                                  mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32);
 442         hub->ctx0_ptb_addr_hi32 =
 443                 SOC15_REG_OFFSET(GC, 0,
 444                                  mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32);
 445         hub->vm_inv_eng0_sem =
 446                 SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_SEM);
 447         hub->vm_inv_eng0_req =
 448                 SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_REQ);
 449         hub->vm_inv_eng0_ack =
 450                 SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ACK);
 451         hub->vm_context0_cntl =
 452                 SOC15_REG_OFFSET(GC, 0, mmGCVM_CONTEXT0_CNTL);
 453         hub->vm_l2_pro_fault_status =
 454                 SOC15_REG_OFFSET(GC, 0, mmGCVM_L2_PROTECTION_FAULT_STATUS);
 455         hub->vm_l2_pro_fault_cntl =
 456                 SOC15_REG_OFFSET(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL);
 457
 458         hub->ctx_distance = mmGCVM_CONTEXT1_CNTL - mmGCVM_CONTEXT0_CNTL;
 459         hub->ctx_addr_distance = mmGCVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32 -
 460                 mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32;
 461         hub->eng_distance = mmGCVM_INVALIDATE_ENG1_REQ -
 462                 mmGCVM_INVALIDATE_ENG0_REQ;
 463         hub->eng_addr_distance = mmGCVM_INVALIDATE_ENG1_ADDR_RANGE_LO32 -
 464                 mmGCVM_INVALIDATE_ENG0_ADDR_RANGE_LO32;
 465
 466         hub->vm_cntx_cntl_vm_fault = GCVM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 467                 GCVM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 468                 GCVM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 469                 GCVM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 470                 GCVM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 471                 GCVM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 472                 GCVM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK;
 473
 474         /* TODO: This is only needed on some Navi 1x revisions */
 475         hub->sdma_invalidation_workaround = true;
 476
 477         hub->vmhub_funcs = &gfxhub_v2_0_vmhub_funcs;
 478 }
 479
 480 const struct amdgpu_gfxhub_funcs gfxhub_v2_0_funcs = {
 481         .get_fb_location = gfxhub_v2_0_get_fb_location,
 482         .get_mc_fb_offset = gfxhub_v2_0_get_mc_fb_offset,
 483         .setup_vm_pt_regs = gfxhub_v2_0_setup_vm_pt_regs,
 484         .gart_enable = gfxhub_v2_0_gart_enable,
 485         .gart_disable = gfxhub_v2_0_gart_disable,
 486         .set_fault_enable_default = gfxhub_v2_0_set_fault_enable_default,
 487         .init = gfxhub_v2_0_init,
 488 };