drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c

   1 /*
   2  * Copyright 2016 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 "amdgpu.h"
  24 #include "mmhub_v1_0.h"
  25
  26 #include "mmhub/mmhub_1_0_offset.h"
  27 #include "mmhub/mmhub_1_0_sh_mask.h"
  28 #include "mmhub/mmhub_1_0_default.h"
  29 #include "athub/athub_1_0_offset.h"
  30 #include "athub/athub_1_0_sh_mask.h"
  31 #include "vega10_enum.h"
  32
  33 #include "soc15_common.h"
  34
  35 #define mmDAGB0_CNTL_MISC2_RV 0x008f
  36 #define mmDAGB0_CNTL_MISC2_RV_BASE_IDX 0
  37
  38 u64 mmhub_v1_0_get_fb_location(struct amdgpu_device *adev)
  39 {
  40         u64 base = RREG32_SOC15(MMHUB, 0, mmMC_VM_FB_LOCATION_BASE);
  41         u64 top = RREG32_SOC15(MMHUB, 0, mmMC_VM_FB_LOCATION_TOP);
  42
  43         base &= MC_VM_FB_LOCATION_BASE__FB_BASE_MASK;
  44         base <<= 24;
  45
  46         top &= MC_VM_FB_LOCATION_TOP__FB_TOP_MASK;
  47         top <<= 24;
  48
  49         adev->gmc.fb_start = base;
  50         adev->gmc.fb_end = top;
  51
  52         return base;
  53 }
  54
  55 void mmhub_v1_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
  56                                 uint64_t page_table_base)
  57 {
  58         /* two registers distance between mmVM_CONTEXT0_* to mmVM_CONTEXT1_* */
  59         int offset = mmVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32
  60                         - mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32;
  61
  62         WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
  63                         offset * vmid, lower_32_bits(page_table_base));
  64
  65         WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
  66                         offset * vmid, upper_32_bits(page_table_base));
  67 }
  68
  69 static void mmhub_v1_0_init_gart_aperture_regs(struct amdgpu_device *adev)
  70 {
  71         uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo);
  72
  73         mmhub_v1_0_setup_vm_pt_regs(adev, 0, pt_base);
  74
  75         WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32,
  76                      (u32)(adev->gmc.gart_start >> 12));
  77         WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32,
  78                      (u32)(adev->gmc.gart_start >> 44));
  79
  80         WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32,
  81                      (u32)(adev->gmc.gart_end >> 12));
  82         WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32,
  83                      (u32)(adev->gmc.gart_end >> 44));
  84 }
  85
  86 static void mmhub_v1_0_init_system_aperture_regs(struct amdgpu_device *adev)
  87 {
  88         uint64_t value;
  89         uint32_t tmp;
  90
  91         /* Program the AGP BAR */
  92         WREG32_SOC15(MMHUB, 0, mmMC_VM_AGP_BASE, 0);
  93         WREG32_SOC15(MMHUB, 0, mmMC_VM_AGP_BOT, adev->gmc.agp_start >> 24);
  94         WREG32_SOC15(MMHUB, 0, mmMC_VM_AGP_TOP, adev->gmc.agp_end >> 24);
  95
  96         /* Program the system aperture low logical page number. */
  97         WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
  98                      min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18);
  99
 100         if (adev->asic_type == CHIP_RAVEN && adev->rev_id >= 0x8)
 101                 /*
 102                  * Raven2 has a HW issue that it is unable to use the vram which
 103                  * is out of MC_VM_SYSTEM_APERTURE_HIGH_ADDR. So here is the
 104                  * workaround that increase system aperture high address (add 1)
 105                  * to get rid of the VM fault and hardware hang.
 106                  */
 107                 WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 108                              max((adev->gmc.fb_end >> 18) + 0x1,
 109                                  adev->gmc.agp_end >> 18));
 110         else
 111                 WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 112                              max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18);
 113
 114         if (amdgpu_virt_support_skip_setting(adev))
 115                 return;
 116
 117         /* Set default page address. */
 118         value = adev->vram_scratch.gpu_addr - adev->gmc.vram_start +
 119                 adev->vm_manager.vram_base_offset;
 120         WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
 121                      (u32)(value >> 12));
 122         WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
 123                      (u32)(value >> 44));
 124
 125         /* Program "protection fault". */
 126         WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
 127                      (u32)(adev->dummy_page_addr >> 12));
 128         WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
 129                      (u32)((u64)adev->dummy_page_addr >> 44));
 130
 131         tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL2);
 132         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL2,
 133                             ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
 134         WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL2, tmp);
 135 }
 136
 137 static void mmhub_v1_0_init_tlb_regs(struct amdgpu_device *adev)
 138 {
 139         uint32_t tmp;
 140
 141         /* Setup TLB control */
 142         tmp = RREG32_SOC15(MMHUB, 0, mmMC_VM_MX_L1_TLB_CNTL);
 143
 144         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 145         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 146         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL,
 147                             ENABLE_ADVANCED_DRIVER_MODEL, 1);
 148         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL,
 149                             SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 150         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
 151         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL,
 152                             MTYPE, MTYPE_UC);/* XXX for emulation. */
 153         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ATC_EN, 1);
 154
 155         WREG32_SOC15(MMHUB, 0, mmMC_VM_MX_L1_TLB_CNTL, tmp);
 156 }
 157
 158 static void mmhub_v1_0_init_cache_regs(struct amdgpu_device *adev)
 159 {
 160         uint32_t tmp;
 161
 162         if (amdgpu_virt_support_skip_setting(adev))
 163                 return;
 164
 165         /* Setup L2 cache */
 166         tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL);
 167         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
 168         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
 169         /* XXX for emulation, Refer to closed source code.*/
 170         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, L2_PDE0_CACHE_TAG_GENERATION_MODE,
 171                             0);
 172         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 0);
 173         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 174         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0);
 175         WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL, tmp);
 176
 177         tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL2);
 178         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 179         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 180         WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL2, tmp);
 181
 182         if (adev->gmc.translate_further) {
 183                 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 12);
 184                 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3,
 185                                     L2_CACHE_BIGK_FRAGMENT_SIZE, 9);
 186         } else {
 187                 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 9);
 188                 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3,
 189                                     L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
 190         }
 191         WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL3, tmp);
 192
 193         tmp = mmVM_L2_CNTL4_DEFAULT;
 194         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
 195         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);
 196         WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL4, tmp);
 197 }
 198
 199 static void mmhub_v1_0_enable_system_domain(struct amdgpu_device *adev)
 200 {
 201         uint32_t tmp;
 202
 203         tmp = RREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_CNTL);
 204         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 205         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 206         WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_CNTL, tmp);
 207 }
 208
 209 static void mmhub_v1_0_disable_identity_aperture(struct amdgpu_device *adev)
 210 {
 211         if (amdgpu_virt_support_skip_setting(adev))
 212                 return;
 213
 214         WREG32_SOC15(MMHUB, 0, mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32,
 215                      0XFFFFFFFF);
 216         WREG32_SOC15(MMHUB, 0, mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32,
 217                      0x0000000F);
 218
 219         WREG32_SOC15(MMHUB, 0,
 220                      mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32, 0);
 221         WREG32_SOC15(MMHUB, 0,
 222                      mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32, 0);
 223
 224         WREG32_SOC15(MMHUB, 0, mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32,
 225                      0);
 226         WREG32_SOC15(MMHUB, 0, mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32,
 227                      0);
 228 }
 229
 230 static void mmhub_v1_0_setup_vmid_config(struct amdgpu_device *adev)
 231 {
 232         unsigned num_level, block_size;
 233         uint32_t tmp;
 234         int i;
 235
 236         num_level = adev->vm_manager.num_level;
 237         block_size = adev->vm_manager.block_size;
 238         if (adev->gmc.translate_further)
 239                 num_level -= 1;
 240         else
 241                 block_size -= 9;
 242
 243         for (i = 0; i <= 14; i++) {
 244                 tmp = RREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_CNTL, i);
 245                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 246                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,
 247                                     num_level);
 248                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 249                                     RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 250                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 251                                     DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT,
 252                                     1);
 253                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 254                                     PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 255                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 256                                     VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 257                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 258                                     READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 259                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 260                                     WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 261                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 262                                     EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 263                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 264                                     PAGE_TABLE_BLOCK_SIZE,
 265                                     block_size);
 266                 /* Send no-retry XNACK on fault to suppress VM fault storm. */
 267                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 268                                     RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 1);
 269                 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_CNTL, i, tmp);
 270                 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32, i*2, 0);
 271                 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32, i*2, 0);
 272                 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32, i*2,
 273                         lower_32_bits(adev->vm_manager.max_pfn - 1));
 274                 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32, i*2,
 275                         upper_32_bits(adev->vm_manager.max_pfn - 1));
 276         }
 277 }
 278
 279 static void mmhub_v1_0_program_invalidation(struct amdgpu_device *adev)
 280 {
 281         unsigned i;
 282
 283         for (i = 0; i < 18; ++i) {
 284                 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_ADDR_RANGE_LO32,
 285                                     2 * i, 0xffffffff);
 286                 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_ADDR_RANGE_HI32,
 287                                     2 * i, 0x1f);
 288         }
 289 }
 290
 291 void mmhub_v1_0_update_power_gating(struct amdgpu_device *adev,
 292                                 bool enable)
 293 {
 294         if (amdgpu_sriov_vf(adev))
 295                 return;
 296
 297         if (enable && adev->pg_flags & AMD_PG_SUPPORT_MMHUB) {
 298                 if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->set_powergating_by_smu)
 299                         amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GMC, true);
 300
 301         }
 302 }
 303
 304 int mmhub_v1_0_gart_enable(struct amdgpu_device *adev)
 305 {
 306         if (amdgpu_sriov_vf(adev)) {
 307                 /*
 308                  * MC_VM_FB_LOCATION_BASE/TOP is NULL for VF, becuase they are
 309                  * VF copy registers so vbios post doesn't program them, for
 310                  * SRIOV driver need to program them
 311                  */
 312                 WREG32_SOC15(MMHUB, 0, mmMC_VM_FB_LOCATION_BASE,
 313                              adev->gmc.vram_start >> 24);
 314                 WREG32_SOC15(MMHUB, 0, mmMC_VM_FB_LOCATION_TOP,
 315                              adev->gmc.vram_end >> 24);
 316         }
 317
 318         /* GART Enable. */
 319         mmhub_v1_0_init_gart_aperture_regs(adev);
 320         mmhub_v1_0_init_system_aperture_regs(adev);
 321         mmhub_v1_0_init_tlb_regs(adev);
 322         mmhub_v1_0_init_cache_regs(adev);
 323
 324         mmhub_v1_0_enable_system_domain(adev);
 325         mmhub_v1_0_disable_identity_aperture(adev);
 326         mmhub_v1_0_setup_vmid_config(adev);
 327         mmhub_v1_0_program_invalidation(adev);
 328
 329         return 0;
 330 }
 331
 332 void mmhub_v1_0_gart_disable(struct amdgpu_device *adev)
 333 {
 334         u32 tmp;
 335         u32 i;
 336
 337         /* Disable all tables */
 338         for (i = 0; i < 16; i++)
 339                 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT0_CNTL, i, 0);
 340
 341         /* Setup TLB control */
 342         tmp = RREG32_SOC15(MMHUB, 0, mmMC_VM_MX_L1_TLB_CNTL);
 343         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 344         tmp = REG_SET_FIELD(tmp,
 345                                 MC_VM_MX_L1_TLB_CNTL,
 346                                 ENABLE_ADVANCED_DRIVER_MODEL,
 347                                 0);
 348         WREG32_SOC15(MMHUB, 0, mmMC_VM_MX_L1_TLB_CNTL, tmp);
 349
 350         if (!amdgpu_virt_support_skip_setting(adev)) {
 351                 /* Setup L2 cache */
 352                 tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL);
 353                 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
 354                 WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL, tmp);
 355                 WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL3, 0);
 356         }
 357 }
 358
 359 /**
 360  * mmhub_v1_0_set_fault_enable_default - update GART/VM fault handling
 361  *
 362  * @adev: amdgpu_device pointer
 363  * @value: true redirects VM faults to the default page
 364  */
 365 void mmhub_v1_0_set_fault_enable_default(struct amdgpu_device *adev, bool value)
 366 {
 367         u32 tmp;
 368
 369         if (amdgpu_virt_support_skip_setting(adev))
 370                 return;
 371
 372         tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL);
 373         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 374                         RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 375         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 376                         PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 377         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 378                         PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 379         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 380                         PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 381         tmp = REG_SET_FIELD(tmp,
 382                         VM_L2_PROTECTION_FAULT_CNTL,
 383                         TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT,
 384                         value);
 385         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 386                         NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 387         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 388                         DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 389         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 390                         VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 391         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 392                         READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 393         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 394                         WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 395         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 396                         EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 397         if (!value) {
 398                 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 399                                 CRASH_ON_NO_RETRY_FAULT, 1);
 400                 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 401                                 CRASH_ON_RETRY_FAULT, 1);
 402     }
 403
 404         WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL, tmp);
 405 }
 406
 407 void mmhub_v1_0_init(struct amdgpu_device *adev)
 408 {
 409         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB];
 410
 411         hub->ctx0_ptb_addr_lo32 =
 412                 SOC15_REG_OFFSET(MMHUB, 0,
 413                                  mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32);
 414         hub->ctx0_ptb_addr_hi32 =
 415                 SOC15_REG_OFFSET(MMHUB, 0,
 416                                  mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32);
 417         hub->vm_inv_eng0_req =
 418                 SOC15_REG_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_REQ);
 419         hub->vm_inv_eng0_ack =
 420                 SOC15_REG_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_ACK);
 421         hub->vm_context0_cntl =
 422                 SOC15_REG_OFFSET(MMHUB, 0, mmVM_CONTEXT0_CNTL);
 423         hub->vm_l2_pro_fault_status =
 424                 SOC15_REG_OFFSET(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_STATUS);
 425         hub->vm_l2_pro_fault_cntl =
 426                 SOC15_REG_OFFSET(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL);
 427
 428 }
 429
 430 static void mmhub_v1_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
 431                                                         bool enable)
 432 {
 433         uint32_t def, data, def1, data1, def2 = 0, data2 = 0;
 434
 435         def  = data  = RREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG);
 436
 437         if (adev->asic_type != CHIP_RAVEN) {
 438                 def1 = data1 = RREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2);
 439                 def2 = data2 = RREG32_SOC15(MMHUB, 0, mmDAGB1_CNTL_MISC2);
 440         } else
 441                 def1 = data1 = RREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2_RV);
 442
 443         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG)) {
 444                 data |= ATC_L2_MISC_CG__ENABLE_MASK;
 445
 446                 data1 &= ~(DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
 447                            DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
 448                            DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
 449                            DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
 450                            DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
 451                            DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
 452
 453                 if (adev->asic_type != CHIP_RAVEN)
 454                         data2 &= ~(DAGB1_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
 455                                    DAGB1_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
 456                                    DAGB1_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
 457                                    DAGB1_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
 458                                    DAGB1_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
 459                                    DAGB1_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
 460         } else {
 461                 data &= ~ATC_L2_MISC_CG__ENABLE_MASK;
 462
 463                 data1 |= (DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
 464                           DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
 465                           DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
 466                           DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
 467                           DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
 468                           DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
 469
 470                 if (adev->asic_type != CHIP_RAVEN)
 471                         data2 |= (DAGB1_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
 472                                   DAGB1_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
 473                                   DAGB1_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
 474                                   DAGB1_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
 475                                   DAGB1_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
 476                                   DAGB1_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
 477         }
 478
 479         if (def != data)
 480                 WREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG, data);
 481
 482         if (def1 != data1) {
 483                 if (adev->asic_type != CHIP_RAVEN)
 484                         WREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2, data1);
 485                 else
 486                         WREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2_RV, data1);
 487         }
 488
 489         if (adev->asic_type != CHIP_RAVEN && def2 != data2)
 490                 WREG32_SOC15(MMHUB, 0, mmDAGB1_CNTL_MISC2, data2);
 491 }
 492
 493 static void athub_update_medium_grain_clock_gating(struct amdgpu_device *adev,
 494                                                    bool enable)
 495 {
 496         uint32_t def, data;
 497
 498         def = data = RREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL);
 499
 500         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
 501                 data |= ATHUB_MISC_CNTL__CG_ENABLE_MASK;
 502         else
 503                 data &= ~ATHUB_MISC_CNTL__CG_ENABLE_MASK;
 504
 505         if (def != data)
 506                 WREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL, data);
 507 }
 508
 509 static void mmhub_v1_0_update_medium_grain_light_sleep(struct amdgpu_device *adev,
 510                                                        bool enable)
 511 {
 512         uint32_t def, data;
 513
 514         def = data = RREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG);
 515
 516         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
 517                 data |= ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK;
 518         else
 519                 data &= ~ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK;
 520
 521         if (def != data)
 522                 WREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG, data);
 523 }
 524
 525 static void athub_update_medium_grain_light_sleep(struct amdgpu_device *adev,
 526                                                   bool enable)
 527 {
 528         uint32_t def, data;
 529
 530         def = data = RREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL);
 531
 532         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS) &&
 533             (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
 534                 data |= ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK;
 535         else
 536                 data &= ~ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK;
 537
 538         if(def != data)
 539                 WREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL, data);
 540 }
 541
 542 int mmhub_v1_0_set_clockgating(struct amdgpu_device *adev,
 543                                enum amd_clockgating_state state)
 544 {
 545         if (amdgpu_sriov_vf(adev))
 546                 return 0;
 547
 548         switch (adev->asic_type) {
 549         case CHIP_VEGA10:
 550         case CHIP_VEGA12:
 551         case CHIP_VEGA20:
 552         case CHIP_RAVEN:
 553                 mmhub_v1_0_update_medium_grain_clock_gating(adev,
 554                                 state == AMD_CG_STATE_GATE ? true : false);
 555                 athub_update_medium_grain_clock_gating(adev,
 556                                 state == AMD_CG_STATE_GATE ? true : false);
 557                 mmhub_v1_0_update_medium_grain_light_sleep(adev,
 558                                 state == AMD_CG_STATE_GATE ? true : false);
 559                 athub_update_medium_grain_light_sleep(adev,
 560                                 state == AMD_CG_STATE_GATE ? true : false);
 561                 break;
 562         default:
 563                 break;
 564         }
 565
 566         return 0;
 567 }
 568
 569 void mmhub_v1_0_get_clockgating(struct amdgpu_device *adev, u32 *flags)
 570 {
 571         int data;
 572
 573         if (amdgpu_sriov_vf(adev))
 574                 *flags = 0;
 575
 576         /* AMD_CG_SUPPORT_MC_MGCG */
 577         data = RREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL);
 578         if (data & ATHUB_MISC_CNTL__CG_ENABLE_MASK)
 579                 *flags |= AMD_CG_SUPPORT_MC_MGCG;
 580
 581         /* AMD_CG_SUPPORT_MC_LS */
 582         data = RREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG);
 583         if (data & ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK)
 584                 *flags |= AMD_CG_SUPPORT_MC_LS;
 585 }