drivers/gpu/drm/amd/amdgpu/mmhub_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 "mmhub_v3_0.h"
  26
  27 #include "mmhub/mmhub_3_0_0_offset.h"
  28 #include "mmhub/mmhub_3_0_0_sh_mask.h"
  29 #include "navi10_enum.h"
  30
  31 #include "soc15_common.h"
  32
  33 #define regMMVM_L2_CNTL3_DEFAULT                                0x80100007
  34 #define regMMVM_L2_CNTL4_DEFAULT                                0x000000c1
  35 #define regMMVM_L2_CNTL5_DEFAULT                                0x00003fe0
  36
  37 static const char *mmhub_client_ids_v3_0_0[][2] = {
  38         [0][0] = "VMC",
  39         [4][0] = "DCEDMC",
  40         [5][0] = "DCEVGA",
  41         [6][0] = "MP0",
  42         [7][0] = "MP1",
  43         [8][0] = "MPIO",
  44         [16][0] = "HDP",
  45         [17][0] = "LSDMA",
  46         [18][0] = "JPEG",
  47         [19][0] = "VCNU0",
  48         [21][0] = "VSCH",
  49         [22][0] = "VCNU1",
  50         [23][0] = "VCN1",
  51         [32+20][0] = "VCN0",
  52         [2][1] = "DBGUNBIO",
  53         [3][1] = "DCEDWB",
  54         [4][1] = "DCEDMC",
  55         [5][1] = "DCEVGA",
  56         [6][1] = "MP0",
  57         [7][1] = "MP1",
  58         [8][1] = "MPIO",
  59         [10][1] = "DBGU0",
  60         [11][1] = "DBGU1",
  61         [12][1] = "DBGU2",
  62         [13][1] = "DBGU3",
  63         [14][1] = "XDP",
  64         [15][1] = "OSSSYS",
  65         [16][1] = "HDP",
  66         [17][1] = "LSDMA",
  67         [18][1] = "JPEG",
  68         [19][1] = "VCNU0",
  69         [20][1] = "VCN0",
  70         [21][1] = "VSCH",
  71         [22][1] = "VCNU1",
  72         [23][1] = "VCN1",
  73 };
  74
  75 static uint32_t mmhub_v3_0_get_invalidate_req(unsigned int vmid,
  76                                               uint32_t flush_type)
  77 {
  78         u32 req = 0;
  79
  80         /* invalidate using legacy mode on vmid*/
  81         req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ,
  82                             PER_VMID_INVALIDATE_REQ, 1 << vmid);
  83         req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, flush_type);
  84         req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PTES, 1);
  85         req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE0, 1);
  86         req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE1, 1);
  87         req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE2, 1);
  88         req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L1_PTES, 1);
  89         req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ,
  90                             CLEAR_PROTECTION_FAULT_STATUS_ADDR, 0);
  91
  92         return req;
  93 }
  94
  95 static void
  96 mmhub_v3_0_print_l2_protection_fault_status(struct amdgpu_device *adev,
  97                                              uint32_t status)
  98 {
  99         uint32_t cid, rw;
 100         const char *mmhub_cid = NULL;
 101
 102         cid = REG_GET_FIELD(status,
 103                             MMVM_L2_PROTECTION_FAULT_STATUS, CID);
 104         rw = REG_GET_FIELD(status,
 105                            MMVM_L2_PROTECTION_FAULT_STATUS, RW);
 106
 107         dev_err(adev->dev,
 108                 "MMVM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
 109                 status);
 110         switch (adev->ip_versions[MMHUB_HWIP][0]) {
 111         case IP_VERSION(3, 0, 0):
 112         case IP_VERSION(3, 0, 1):
 113                 mmhub_cid = mmhub_client_ids_v3_0_0[cid][rw];
 114                 break;
 115         default:
 116                 mmhub_cid = NULL;
 117                 break;
 118         }
 119         dev_err(adev->dev, "\t Faulty UTCL2 client ID: %s (0x%x)\n",
 120                 mmhub_cid ? mmhub_cid : "unknown", cid);
 121         dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n",
 122                 REG_GET_FIELD(status,
 123                 MMVM_L2_PROTECTION_FAULT_STATUS, MORE_FAULTS));
 124         dev_err(adev->dev, "\t WALKER_ERROR: 0x%lx\n",
 125                 REG_GET_FIELD(status,
 126                 MMVM_L2_PROTECTION_FAULT_STATUS, WALKER_ERROR));
 127         dev_err(adev->dev, "\t PERMISSION_FAULTS: 0x%lx\n",
 128                 REG_GET_FIELD(status,
 129                 MMVM_L2_PROTECTION_FAULT_STATUS, PERMISSION_FAULTS));
 130         dev_err(adev->dev, "\t MAPPING_ERROR: 0x%lx\n",
 131                 REG_GET_FIELD(status,
 132                 MMVM_L2_PROTECTION_FAULT_STATUS, MAPPING_ERROR));
 133         dev_err(adev->dev, "\t RW: 0x%x\n", rw);
 134 }
 135
 136 static void mmhub_v3_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
 137                                 uint64_t page_table_base)
 138 {
 139         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB_0];
 140
 141         WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
 142                             hub->ctx_addr_distance * vmid,
 143                             lower_32_bits(page_table_base));
 144
 145         WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
 146                             hub->ctx_addr_distance * vmid,
 147                             upper_32_bits(page_table_base));
 148 }
 149
 150 static void mmhub_v3_0_init_gart_aperture_regs(struct amdgpu_device *adev)
 151 {
 152         uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo);
 153
 154         mmhub_v3_0_setup_vm_pt_regs(adev, 0, pt_base);
 155
 156         WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32,
 157                      (u32)(adev->gmc.gart_start >> 12));
 158         WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32,
 159                      (u32)(adev->gmc.gart_start >> 44));
 160
 161         WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32,
 162                      (u32)(adev->gmc.gart_end >> 12));
 163         WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32,
 164                      (u32)(adev->gmc.gart_end >> 44));
 165 }
 166
 167 static void mmhub_v3_0_init_system_aperture_regs(struct amdgpu_device *adev)
 168 {
 169         uint64_t value;
 170         uint32_t tmp;
 171
 172         if (amdgpu_sriov_vf(adev))
 173                 return;
 174
 175         /*
 176          * the new L1 policy will block SRIOV guest from writing
 177          * these regs, and they will be programed at host.
 178          * so skip programing these regs.
 179          */
 180         /* Program the AGP BAR */
 181         WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BASE, 0);
 182         WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT, adev->gmc.agp_start >> 24);
 183         WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP, adev->gmc.agp_end >> 24);
 184
 185         /* Program the system aperture low logical page number. */
 186         WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 187                      min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18);
 188         WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 189                      max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18);
 190
 191         /* Set default page address. */
 192         value = adev->mem_scratch.gpu_addr - adev->gmc.vram_start +
 193                 adev->vm_manager.vram_base_offset;
 194         WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
 195                      (u32)(value >> 12));
 196         WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
 197                      (u32)(value >> 44));
 198
 199         /* Program "protection fault". */
 200         WREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
 201                      (u32)(adev->dummy_page_addr >> 12));
 202         WREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
 203                      (u32)((u64)adev->dummy_page_addr >> 44));
 204
 205         tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL2);
 206         tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL2,
 207                             ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
 208         WREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL2, tmp);
 209 }
 210
 211 static void mmhub_v3_0_init_tlb_regs(struct amdgpu_device *adev)
 212 {
 213         uint32_t tmp;
 214
 215         /* Setup TLB control */
 216         tmp = RREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL);
 217
 218         tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 219         tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 220         tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
 221                             ENABLE_ADVANCED_DRIVER_MODEL, 1);
 222         tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
 223                             SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 224         tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
 225         tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
 226                             MTYPE, MTYPE_UC); /* UC, uncached */
 227
 228         WREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL, tmp);
 229 }
 230
 231 static void mmhub_v3_0_init_cache_regs(struct amdgpu_device *adev)
 232 {
 233         uint32_t tmp;
 234
 235         /* These registers are not accessible to VF-SRIOV.
 236          * The PF will program them instead.
 237          */
 238         if (amdgpu_sriov_vf(adev))
 239                 return;
 240
 241         /* Setup L2 cache */
 242         tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL);
 243         tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_CACHE, 1);
 244         tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 0);
 245         tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL,
 246                             ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 247         /* XXX for emulation, Refer to closed source code.*/
 248         tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, L2_PDE0_CACHE_TAG_GENERATION_MODE,
 249                             0);
 250         tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 0);
 251         tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 252         tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0);
 253         WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL, tmp);
 254
 255         tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL2);
 256         tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 257         tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 258         WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL2, tmp);
 259
 260         tmp = regMMVM_L2_CNTL3_DEFAULT;
 261         if (adev->gmc.translate_further) {
 262                 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3, BANK_SELECT, 12);
 263                 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3,
 264                                     L2_CACHE_BIGK_FRAGMENT_SIZE, 9);
 265         } else {
 266                 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3, BANK_SELECT, 9);
 267                 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3,
 268                                     L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
 269         }
 270         WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL3, tmp);
 271
 272         tmp = regMMVM_L2_CNTL4_DEFAULT;
 273         tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
 274         tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);
 275         WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL4, tmp);
 276
 277         tmp = regMMVM_L2_CNTL5_DEFAULT;
 278         tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL5, L2_CACHE_SMALLK_FRAGMENT_SIZE, 0);
 279         WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL5, tmp);
 280 }
 281
 282 static void mmhub_v3_0_enable_system_domain(struct amdgpu_device *adev)
 283 {
 284         uint32_t tmp;
 285
 286         tmp = RREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_CNTL);
 287         tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 288         tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 289         tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL,
 290                             RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
 291         WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_CNTL, tmp);
 292 }
 293
 294 static void mmhub_v3_0_disable_identity_aperture(struct amdgpu_device *adev)
 295 {
 296         /* These registers are not accessible to VF-SRIOV.
 297          * The PF will program them instead.
 298          */
 299         if (amdgpu_sriov_vf(adev))
 300                 return;
 301
 302         WREG32_SOC15(MMHUB, 0,
 303                      regMMVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32,
 304                      0xFFFFFFFF);
 305         WREG32_SOC15(MMHUB, 0,
 306                      regMMVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32,
 307                      0x0000000F);
 308
 309         WREG32_SOC15(MMHUB, 0,
 310                      regMMVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32, 0);
 311         WREG32_SOC15(MMHUB, 0,
 312                      regMMVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32, 0);
 313
 314         WREG32_SOC15(MMHUB, 0, regMMVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32,
 315                      0);
 316         WREG32_SOC15(MMHUB, 0, regMMVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32,
 317                      0);
 318 }
 319
 320 static void mmhub_v3_0_setup_vmid_config(struct amdgpu_device *adev)
 321 {
 322         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB_0];
 323         int i;
 324         uint32_t tmp;
 325
 326         for (i = 0; i <= 14; i++) {
 327                 tmp = RREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_CNTL, i);
 328                 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 329                 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,
 330                                     adev->vm_manager.num_level);
 331                 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
 332                                     RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 333                 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
 334                                     DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT,
 335                                     1);
 336                 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
 337                                     PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 338                 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
 339                                     VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 340                 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
 341                                     READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 342                 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
 343                                     WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 344                 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
 345                                     EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 346                 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
 347                                     PAGE_TABLE_BLOCK_SIZE,
 348                                     adev->vm_manager.block_size - 9);
 349                 /* Send no-retry XNACK on fault to suppress VM fault storm. */
 350                 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
 351                                     RETRY_PERMISSION_OR_INVALID_PAGE_FAULT,
 352                                     !amdgpu_noretry);
 353                 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_CNTL,
 354                                     i * hub->ctx_distance, tmp);
 355                 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32,
 356                                     i * hub->ctx_addr_distance, 0);
 357                 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32,
 358                                     i * hub->ctx_addr_distance, 0);
 359                 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32,
 360                                     i * hub->ctx_addr_distance,
 361                                     lower_32_bits(adev->vm_manager.max_pfn - 1));
 362                 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32,
 363                                     i * hub->ctx_addr_distance,
 364                                     upper_32_bits(adev->vm_manager.max_pfn - 1));
 365         }
 366
 367         hub->vm_cntx_cntl = tmp;
 368 }
 369
 370 static void mmhub_v3_0_program_invalidation(struct amdgpu_device *adev)
 371 {
 372         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB_0];
 373         unsigned i;
 374
 375         for (i = 0; i < 18; ++i) {
 376                 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_ADDR_RANGE_LO32,
 377                                     i * hub->eng_addr_distance, 0xffffffff);
 378                 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_ADDR_RANGE_HI32,
 379                                     i * hub->eng_addr_distance, 0x1f);
 380         }
 381 }
 382
 383 static int mmhub_v3_0_gart_enable(struct amdgpu_device *adev)
 384 {
 385         /* GART Enable. */
 386         mmhub_v3_0_init_gart_aperture_regs(adev);
 387         mmhub_v3_0_init_system_aperture_regs(adev);
 388         mmhub_v3_0_init_tlb_regs(adev);
 389         mmhub_v3_0_init_cache_regs(adev);
 390
 391         mmhub_v3_0_enable_system_domain(adev);
 392         mmhub_v3_0_disable_identity_aperture(adev);
 393         mmhub_v3_0_setup_vmid_config(adev);
 394         mmhub_v3_0_program_invalidation(adev);
 395
 396         return 0;
 397 }
 398
 399 static void mmhub_v3_0_gart_disable(struct amdgpu_device *adev)
 400 {
 401         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB_0];
 402         u32 tmp;
 403         u32 i;
 404
 405         /* Disable all tables */
 406         for (i = 0; i < 16; i++)
 407                 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT0_CNTL,
 408                                     i * hub->ctx_distance, 0);
 409
 410         /* Setup TLB control */
 411         tmp = RREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL);
 412         tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 413         tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
 414                             ENABLE_ADVANCED_DRIVER_MODEL, 0);
 415         WREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL, tmp);
 416
 417         /* Setup L2 cache */
 418         tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL);
 419         tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_CACHE, 0);
 420         WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL, tmp);
 421         WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL3, 0);
 422 }
 423
 424 /**
 425  * mmhub_v3_0_set_fault_enable_default - update GART/VM fault handling
 426  *
 427  * @adev: amdgpu_device pointer
 428  * @value: true redirects VM faults to the default page
 429  */
 430 static void mmhub_v3_0_set_fault_enable_default(struct amdgpu_device *adev, bool value)
 431 {
 432         u32 tmp;
 433
 434         /* These registers are not accessible to VF-SRIOV.
 435          * The PF will program them instead.
 436          */
 437         if (amdgpu_sriov_vf(adev))
 438                 return;
 439
 440         tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL);
 441         tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
 442                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 443         tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
 444                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 445         tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
 446                             PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 447         tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
 448                             PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 449         tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
 450                             TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT,
 451                             value);
 452         tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
 453                             NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 454         tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
 455                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 456         tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
 457                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 458         tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
 459                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 460         tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
 461                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 462         tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
 463                             EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 464         if (!value) {
 465                 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
 466                                 CRASH_ON_NO_RETRY_FAULT, 1);
 467                 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
 468                                 CRASH_ON_RETRY_FAULT, 1);
 469         }
 470         WREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL, tmp);
 471 }
 472
 473 static const struct amdgpu_vmhub_funcs mmhub_v3_0_vmhub_funcs = {
 474         .print_l2_protection_fault_status = mmhub_v3_0_print_l2_protection_fault_status,
 475         .get_invalidate_req = mmhub_v3_0_get_invalidate_req,
 476 };
 477
 478 static void mmhub_v3_0_init(struct amdgpu_device *adev)
 479 {
 480         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB_0];
 481
 482         hub->ctx0_ptb_addr_lo32 =
 483                 SOC15_REG_OFFSET(MMHUB, 0,
 484                                  regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32);
 485         hub->ctx0_ptb_addr_hi32 =
 486                 SOC15_REG_OFFSET(MMHUB, 0,
 487                                  regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32);
 488         hub->vm_inv_eng0_sem =
 489                 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_SEM);
 490         hub->vm_inv_eng0_req =
 491                 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_REQ);
 492         hub->vm_inv_eng0_ack =
 493                 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_ACK);
 494         hub->vm_context0_cntl =
 495                 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_CONTEXT0_CNTL);
 496         hub->vm_l2_pro_fault_status =
 497                 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_STATUS);
 498         hub->vm_l2_pro_fault_cntl =
 499                 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL);
 500
 501         hub->ctx_distance = regMMVM_CONTEXT1_CNTL - regMMVM_CONTEXT0_CNTL;
 502         hub->ctx_addr_distance = regMMVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32 -
 503                 regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32;
 504         hub->eng_distance = regMMVM_INVALIDATE_ENG1_REQ -
 505                 regMMVM_INVALIDATE_ENG0_REQ;
 506         hub->eng_addr_distance = regMMVM_INVALIDATE_ENG1_ADDR_RANGE_LO32 -
 507                 regMMVM_INVALIDATE_ENG0_ADDR_RANGE_LO32;
 508
 509         hub->vm_cntx_cntl_vm_fault = MMVM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 510                 MMVM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 511                 MMVM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 512                 MMVM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 513                 MMVM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 514                 MMVM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
 515                 MMVM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK;
 516
 517         hub->vm_l2_bank_select_reserved_cid2 =
 518                 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_L2_BANK_SELECT_RESERVED_CID2);
 519
 520         hub->vm_contexts_disable =
 521                 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_CONTEXTS_DISABLE);
 522
 523         hub->vmhub_funcs = &mmhub_v3_0_vmhub_funcs;
 524 }
 525
 526 static u64 mmhub_v3_0_get_fb_location(struct amdgpu_device *adev)
 527 {
 528         u64 base;
 529
 530         base = RREG32_SOC15(MMHUB, 0, regMMMC_VM_FB_LOCATION_BASE);
 531
 532         base &= MMMC_VM_FB_LOCATION_BASE__FB_BASE_MASK;
 533         base <<= 24;
 534
 535         return base;
 536 }
 537
 538 static u64 mmhub_v3_0_get_mc_fb_offset(struct amdgpu_device *adev)
 539 {
 540         return (u64)RREG32_SOC15(MMHUB, 0, regMMMC_VM_FB_OFFSET) << 24;
 541 }
 542
 543 static void mmhub_v3_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
 544                                                         bool enable)
 545 {
 546         uint32_t def, data;
 547 #if 0
 548         uint32_t def1, data1, def2 = 0, data2 = 0;
 549 #endif
 550
 551         def  = data  = RREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG);
 552 #if 0
 553         def1 = data1 = RREG32_SOC15(MMHUB, 0, regDAGB0_CNTL_MISC2);
 554         def2 = data2 = RREG32_SOC15(MMHUB, 0, regDAGB1_CNTL_MISC2);
 555 #endif
 556
 557         if (enable) {
 558                 data |= MM_ATC_L2_MISC_CG__ENABLE_MASK;
 559 #if 0
 560                 data1 &= ~(DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
 561                            DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
 562                            DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
 563                            DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
 564                            DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
 565                            DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
 566
 567                 data2 &= ~(DAGB1_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
 568                            DAGB1_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
 569                            DAGB1_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
 570                            DAGB1_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
 571                            DAGB1_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
 572                            DAGB1_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
 573 #endif
 574         } else {
 575                 data &= ~MM_ATC_L2_MISC_CG__ENABLE_MASK;
 576 #if 0
 577                 data1 |= (DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
 578                           DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
 579                           DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
 580                           DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
 581                           DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
 582                           DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
 583
 584                 data2 |= (DAGB1_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
 585                           DAGB1_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
 586                           DAGB1_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
 587                           DAGB1_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
 588                           DAGB1_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
 589                           DAGB1_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
 590 #endif
 591         }
 592
 593         if (def != data)
 594                 WREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG, data);
 595 #if 0
 596         if (def1 != data1)
 597                 WREG32_SOC15(MMHUB, 0, regDAGB0_CNTL_MISC2, data1);
 598
 599         if (def2 != data2)
 600                 WREG32_SOC15(MMHUB, 0, regDAGB1_CNTL_MISC2, data2);
 601 #endif
 602 }
 603
 604 static void mmhub_v3_0_update_medium_grain_light_sleep(struct amdgpu_device *adev,
 605                                                        bool enable)
 606 {
 607         uint32_t def, data;
 608
 609         def = data = RREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG);
 610
 611         if (enable)
 612                 data |= MM_ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK;
 613         else
 614                 data &= ~MM_ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK;
 615
 616         if (def != data)
 617                 WREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG, data);
 618 }
 619
 620 static int mmhub_v3_0_set_clockgating(struct amdgpu_device *adev,
 621                                enum amd_clockgating_state state)
 622 {
 623         if (amdgpu_sriov_vf(adev))
 624                 return 0;
 625
 626         if (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG)
 627                 mmhub_v3_0_update_medium_grain_clock_gating(adev,
 628                                 state == AMD_CG_STATE_GATE);
 629
 630         if (adev->cg_flags & AMD_CG_SUPPORT_MC_LS)
 631                 mmhub_v3_0_update_medium_grain_light_sleep(adev,
 632                                 state == AMD_CG_STATE_GATE);
 633
 634         return 0;
 635 }
 636
 637 static void mmhub_v3_0_get_clockgating(struct amdgpu_device *adev, u64 *flags)
 638 {
 639         int data;
 640
 641         if (amdgpu_sriov_vf(adev))
 642                 *flags = 0;
 643
 644         data = RREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG);
 645
 646         /* AMD_CG_SUPPORT_MC_MGCG */
 647         if (data & MM_ATC_L2_MISC_CG__ENABLE_MASK)
 648                 *flags |= AMD_CG_SUPPORT_MC_MGCG;
 649
 650         /* AMD_CG_SUPPORT_MC_LS */
 651         if (data & MM_ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK)
 652                 *flags |= AMD_CG_SUPPORT_MC_LS;
 653 }
 654
 655 const struct amdgpu_mmhub_funcs mmhub_v3_0_funcs = {
 656         .init = mmhub_v3_0_init,
 657         .get_fb_location = mmhub_v3_0_get_fb_location,
 658         .get_mc_fb_offset = mmhub_v3_0_get_mc_fb_offset,
 659         .gart_enable = mmhub_v3_0_gart_enable,
 660         .set_fault_enable_default = mmhub_v3_0_set_fault_enable_default,
 661         .gart_disable = mmhub_v3_0_gart_disable,
 662         .set_clockgating = mmhub_v3_0_set_clockgating,
 663         .get_clockgating = mmhub_v3_0_get_clockgating,
 664         .setup_vm_pt_regs = mmhub_v3_0_setup_vm_pt_regs,
 665 };