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         /* Set default page address. */
 115         value = adev->vram_scratch.gpu_addr - adev->gmc.vram_start +
 116                 adev->vm_manager.vram_base_offset;
 117         WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
 118                      (u32)(value >> 12));
 119         WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
 120                      (u32)(value >> 44));
 121
 122         /* Program "protection fault". */
 123         WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
 124                      (u32)(adev->dummy_page_addr >> 12));
 125         WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
 126                      (u32)((u64)adev->dummy_page_addr >> 44));
 127
 128         tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL2);
 129         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL2,
 130                             ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
 131         WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL2, tmp);
 132 }
 133
 134 static void mmhub_v1_0_init_tlb_regs(struct amdgpu_device *adev)
 135 {
 136         uint32_t tmp;
 137
 138         /* Setup TLB control */
 139         tmp = RREG32_SOC15(MMHUB, 0, mmMC_VM_MX_L1_TLB_CNTL);
 140
 141         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 142         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 143         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL,
 144                             ENABLE_ADVANCED_DRIVER_MODEL, 1);
 145         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL,
 146                             SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 147         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
 148         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL,
 149                             MTYPE, MTYPE_UC);/* XXX for emulation. */
 150         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ATC_EN, 1);
 151
 152         WREG32_SOC15(MMHUB, 0, mmMC_VM_MX_L1_TLB_CNTL, tmp);
 153 }
 154
 155 static void mmhub_v1_0_init_cache_regs(struct amdgpu_device *adev)
 156 {
 157         uint32_t tmp;
 158
 159         /* Setup L2 cache */
 160         tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL);
 161         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
 162         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
 163         /* XXX for emulation, Refer to closed source code.*/
 164         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, L2_PDE0_CACHE_TAG_GENERATION_MODE,
 165                             0);
 166         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 1);
 167         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 168         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0);
 169         WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL, tmp);
 170
 171         tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL2);
 172         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 173         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 174         WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL2, tmp);
 175
 176         if (adev->gmc.translate_further) {
 177                 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 12);
 178                 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3,
 179                                     L2_CACHE_BIGK_FRAGMENT_SIZE, 9);
 180         } else {
 181                 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 9);
 182                 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3,
 183                                     L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
 184         }
 185
 186         tmp = mmVM_L2_CNTL4_DEFAULT;
 187         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
 188         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);
 189         WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL4, tmp);
 190 }
 191
 192 static void mmhub_v1_0_enable_system_domain(struct amdgpu_device *adev)
 193 {
 194         uint32_t tmp;
 195
 196         tmp = RREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_CNTL);
 197         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 198         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 199         WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_CNTL, tmp);
 200 }
 201
 202 static void mmhub_v1_0_disable_identity_aperture(struct amdgpu_device *adev)
 203 {
 204         WREG32_SOC15(MMHUB, 0, mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32,
 205                      0XFFFFFFFF);
 206         WREG32_SOC15(MMHUB, 0, mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32,
 207                      0x0000000F);
 208
 209         WREG32_SOC15(MMHUB, 0,
 210                      mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32, 0);
 211         WREG32_SOC15(MMHUB, 0,
 212                      mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32, 0);
 213
 214         WREG32_SOC15(MMHUB, 0, mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32,
 215                      0);
 216         WREG32_SOC15(MMHUB, 0, mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32,
 217                      0);
 218 }
 219
 220 static void mmhub_v1_0_setup_vmid_config(struct amdgpu_device *adev)
 221 {
 222         unsigned num_level, block_size;
 223         uint32_t tmp;
 224         int i;
 225
 226         num_level = adev->vm_manager.num_level;
 227         block_size = adev->vm_manager.block_size;
 228         if (adev->gmc.translate_further)
 229                 num_level -= 1;
 230         else
 231                 block_size -= 9;
 232
 233         for (i = 0; i <= 14; i++) {
 234                 tmp = RREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_CNTL, i);
 235                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 236                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,
 237                                     num_level);
 238                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 239                                     RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 240                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 241                                     DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT,
 242                                     1);
 243                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 244                                     PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 245                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 246                                     VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 247                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 248                                     READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 249                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 250                                     WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 251                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 252                                     EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 253                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 254                                     PAGE_TABLE_BLOCK_SIZE,
 255                                     block_size);
 256                 /* Send no-retry XNACK on fault to suppress VM fault storm. */
 257                 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 258                                     RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
 259                 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_CNTL, i, tmp);
 260                 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32, i*2, 0);
 261                 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32, i*2, 0);
 262                 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32, i*2,
 263                         lower_32_bits(adev->vm_manager.max_pfn - 1));
 264                 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32, i*2,
 265                         upper_32_bits(adev->vm_manager.max_pfn - 1));
 266         }
 267 }
 268
 269 static void mmhub_v1_0_program_invalidation(struct amdgpu_device *adev)
 270 {
 271         unsigned i;
 272
 273         for (i = 0; i < 18; ++i) {
 274                 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_ADDR_RANGE_LO32,
 275                                     2 * i, 0xffffffff);
 276                 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_ADDR_RANGE_HI32,
 277                                     2 * i, 0x1f);
 278         }
 279 }
 280
 281 void mmhub_v1_0_update_power_gating(struct amdgpu_device *adev,
 282                                 bool enable)
 283 {
 284         if (amdgpu_sriov_vf(adev))
 285                 return;
 286
 287         if (enable && adev->pg_flags & AMD_PG_SUPPORT_MMHUB) {
 288                 if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->set_powergating_by_smu)
 289                         amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GMC, true);
 290
 291         }
 292 }
 293
 294 int mmhub_v1_0_gart_enable(struct amdgpu_device *adev)
 295 {
 296         if (amdgpu_sriov_vf(adev)) {
 297                 /*
 298                  * MC_VM_FB_LOCATION_BASE/TOP is NULL for VF, becuase they are
 299                  * VF copy registers so vbios post doesn't program them, for
 300                  * SRIOV driver need to program them
 301                  */
 302                 WREG32_SOC15(MMHUB, 0, mmMC_VM_FB_LOCATION_BASE,
 303                              adev->gmc.vram_start >> 24);
 304                 WREG32_SOC15(MMHUB, 0, mmMC_VM_FB_LOCATION_TOP,
 305                              adev->gmc.vram_end >> 24);
 306         }
 307
 308         /* GART Enable. */
 309         mmhub_v1_0_init_gart_aperture_regs(adev);
 310         mmhub_v1_0_init_system_aperture_regs(adev);
 311         mmhub_v1_0_init_tlb_regs(adev);
 312         mmhub_v1_0_init_cache_regs(adev);
 313
 314         mmhub_v1_0_enable_system_domain(adev);
 315         mmhub_v1_0_disable_identity_aperture(adev);
 316         mmhub_v1_0_setup_vmid_config(adev);
 317         mmhub_v1_0_program_invalidation(adev);
 318
 319         return 0;
 320 }
 321
 322 void mmhub_v1_0_gart_disable(struct amdgpu_device *adev)
 323 {
 324         u32 tmp;
 325         u32 i;
 326
 327         /* Disable all tables */
 328         for (i = 0; i < 16; i++)
 329                 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT0_CNTL, i, 0);
 330
 331         /* Setup TLB control */
 332         tmp = RREG32_SOC15(MMHUB, 0, mmMC_VM_MX_L1_TLB_CNTL);
 333         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 334         tmp = REG_SET_FIELD(tmp,
 335                                 MC_VM_MX_L1_TLB_CNTL,
 336                                 ENABLE_ADVANCED_DRIVER_MODEL,
 337                                 0);
 338         WREG32_SOC15(MMHUB, 0, mmMC_VM_MX_L1_TLB_CNTL, tmp);
 339
 340         /* Setup L2 cache */
 341         tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL);
 342         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
 343         WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL, tmp);
 344         WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL3, 0);
 345 }
 346
 347 /**
 348  * mmhub_v1_0_set_fault_enable_default - update GART/VM fault handling
 349  *
 350  * @adev: amdgpu_device pointer
 351  * @value: true redirects VM faults to the default page
 352  */
 353 void mmhub_v1_0_set_fault_enable_default(struct amdgpu_device *adev, bool value)
 354 {
 355         u32 tmp;
 356         tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL);
 357         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 358                         RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 359         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 360                         PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 361         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 362                         PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 363         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 364                         PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 365         tmp = REG_SET_FIELD(tmp,
 366                         VM_L2_PROTECTION_FAULT_CNTL,
 367                         TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT,
 368                         value);
 369         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 370                         NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 371         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 372                         DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 373         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 374                         VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 375         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 376                         READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 377         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 378                         WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 379         tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 380                         EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 381         if (!value) {
 382                 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 383                                 CRASH_ON_NO_RETRY_FAULT, 1);
 384                 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL,
 385                                 CRASH_ON_RETRY_FAULT, 1);
 386     }
 387
 388         WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL, tmp);
 389 }
 390
 391 void mmhub_v1_0_init(struct amdgpu_device *adev)
 392 {
 393         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB];
 394
 395         hub->ctx0_ptb_addr_lo32 =
 396                 SOC15_REG_OFFSET(MMHUB, 0,
 397                                  mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32);
 398         hub->ctx0_ptb_addr_hi32 =
 399                 SOC15_REG_OFFSET(MMHUB, 0,
 400                                  mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32);
 401         hub->vm_inv_eng0_req =
 402                 SOC15_REG_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_REQ);
 403         hub->vm_inv_eng0_ack =
 404                 SOC15_REG_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_ACK);
 405         hub->vm_context0_cntl =
 406                 SOC15_REG_OFFSET(MMHUB, 0, mmVM_CONTEXT0_CNTL);
 407         hub->vm_l2_pro_fault_status =
 408                 SOC15_REG_OFFSET(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_STATUS);
 409         hub->vm_l2_pro_fault_cntl =
 410                 SOC15_REG_OFFSET(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL);
 411
 412 }
 413
 414 static void mmhub_v1_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
 415                                                         bool enable)
 416 {
 417         uint32_t def, data, def1, data1, def2 = 0, data2 = 0;
 418
 419         def  = data  = RREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG);
 420
 421         if (adev->asic_type != CHIP_RAVEN) {
 422                 def1 = data1 = RREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2);
 423                 def2 = data2 = RREG32_SOC15(MMHUB, 0, mmDAGB1_CNTL_MISC2);
 424         } else
 425                 def1 = data1 = RREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2_RV);
 426
 427         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG)) {
 428                 data |= ATC_L2_MISC_CG__ENABLE_MASK;
 429
 430                 data1 &= ~(DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
 431                            DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
 432                            DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
 433                            DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
 434                            DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
 435                            DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
 436
 437                 if (adev->asic_type != CHIP_RAVEN)
 438                         data2 &= ~(DAGB1_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
 439                                    DAGB1_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
 440                                    DAGB1_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
 441                                    DAGB1_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
 442                                    DAGB1_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
 443                                    DAGB1_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
 444         } else {
 445                 data &= ~ATC_L2_MISC_CG__ENABLE_MASK;
 446
 447                 data1 |= (DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
 448                           DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
 449                           DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
 450                           DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
 451                           DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
 452                           DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
 453
 454                 if (adev->asic_type != CHIP_RAVEN)
 455                         data2 |= (DAGB1_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
 456                                   DAGB1_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
 457                                   DAGB1_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
 458                                   DAGB1_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
 459                                   DAGB1_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
 460                                   DAGB1_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
 461         }
 462
 463         if (def != data)
 464                 WREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG, data);
 465
 466         if (def1 != data1) {
 467                 if (adev->asic_type != CHIP_RAVEN)
 468                         WREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2, data1);
 469                 else
 470                         WREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2_RV, data1);
 471         }
 472
 473         if (adev->asic_type != CHIP_RAVEN && def2 != data2)
 474                 WREG32_SOC15(MMHUB, 0, mmDAGB1_CNTL_MISC2, data2);
 475 }
 476
 477 static void athub_update_medium_grain_clock_gating(struct amdgpu_device *adev,
 478                                                    bool enable)
 479 {
 480         uint32_t def, data;
 481
 482         def = data = RREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL);
 483
 484         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
 485                 data |= ATHUB_MISC_CNTL__CG_ENABLE_MASK;
 486         else
 487                 data &= ~ATHUB_MISC_CNTL__CG_ENABLE_MASK;
 488
 489         if (def != data)
 490                 WREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL, data);
 491 }
 492
 493 static void mmhub_v1_0_update_medium_grain_light_sleep(struct amdgpu_device *adev,
 494                                                        bool enable)
 495 {
 496         uint32_t def, data;
 497
 498         def = data = RREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG);
 499
 500         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
 501                 data |= ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK;
 502         else
 503                 data &= ~ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK;
 504
 505         if (def != data)
 506                 WREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG, data);
 507 }
 508
 509 static void athub_update_medium_grain_light_sleep(struct amdgpu_device *adev,
 510                                                   bool enable)
 511 {
 512         uint32_t def, data;
 513
 514         def = data = RREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL);
 515
 516         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS) &&
 517             (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
 518                 data |= ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK;
 519         else
 520                 data &= ~ATHUB_MISC_CNTL__CG_MEM_LS_ENABLE_MASK;
 521
 522         if(def != data)
 523                 WREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL, data);
 524 }
 525
 526 int mmhub_v1_0_set_clockgating(struct amdgpu_device *adev,
 527                                enum amd_clockgating_state state)
 528 {
 529         if (amdgpu_sriov_vf(adev))
 530                 return 0;
 531
 532         switch (adev->asic_type) {
 533         case CHIP_VEGA10:
 534         case CHIP_VEGA12:
 535         case CHIP_VEGA20:
 536         case CHIP_RAVEN:
 537                 mmhub_v1_0_update_medium_grain_clock_gating(adev,
 538                                 state == AMD_CG_STATE_GATE ? true : false);
 539                 athub_update_medium_grain_clock_gating(adev,
 540                                 state == AMD_CG_STATE_GATE ? true : false);
 541                 mmhub_v1_0_update_medium_grain_light_sleep(adev,
 542                                 state == AMD_CG_STATE_GATE ? true : false);
 543                 athub_update_medium_grain_light_sleep(adev,
 544                                 state == AMD_CG_STATE_GATE ? true : false);
 545                 break;
 546         default:
 547                 break;
 548         }
 549
 550         return 0;
 551 }
 552
 553 void mmhub_v1_0_get_clockgating(struct amdgpu_device *adev, u32 *flags)
 554 {
 555         int data;
 556
 557         if (amdgpu_sriov_vf(adev))
 558                 *flags = 0;
 559
 560         /* AMD_CG_SUPPORT_MC_MGCG */
 561         data = RREG32_SOC15(ATHUB, 0, mmATHUB_MISC_CNTL);
 562         if (data & ATHUB_MISC_CNTL__CG_ENABLE_MASK)
 563                 *flags |= AMD_CG_SUPPORT_MC_MGCG;
 564
 565         /* AMD_CG_SUPPORT_MC_LS */
 566         data = RREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG);
 567         if (data & ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK)
 568                 *flags |= AMD_CG_SUPPORT_MC_LS;
 569 }