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 u64 gfxhub_v2_0_get_fb_location(struct amdgpu_device *adev)
  35 {
  36         u64 base = RREG32_SOC15(GC, 0, mmGCMC_VM_FB_LOCATION_BASE);
  37
  38         base &= GCMC_VM_FB_LOCATION_BASE__FB_BASE_MASK;
  39         base <<= 24;
  40
  41         return base;
  42 }
  43
  44 u64 gfxhub_v2_0_get_mc_fb_offset(struct amdgpu_device *adev)
  45 {
  46         return (u64)RREG32_SOC15(GC, 0, mmGCMC_VM_FB_OFFSET) << 24;
  47 }
  48
  49 static void gfxhub_v2_0_init_gart_pt_regs(struct amdgpu_device *adev)
  50 {
  51         uint64_t value = amdgpu_gmc_pd_addr(adev->gart.bo);
  52
  53
  54         WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
  55                      lower_32_bits(value));
  56
  57         WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
  58                      upper_32_bits(value));
  59 }
  60
  61 static void gfxhub_v2_0_init_gart_aperture_regs(struct amdgpu_device *adev)
  62 {
  63         gfxhub_v2_0_init_gart_pt_regs(adev);
  64
  65         WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32,
  66                      (u32)(adev->gmc.gart_start >> 12));
  67         WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32,
  68                      (u32)(adev->gmc.gart_start >> 44));
  69
  70         WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32,
  71                      (u32)(adev->gmc.gart_end >> 12));
  72         WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32,
  73                      (u32)(adev->gmc.gart_end >> 44));
  74 }
  75
  76 static void gfxhub_v2_0_init_system_aperture_regs(struct amdgpu_device *adev)
  77 {
  78         uint64_t value;
  79
  80         /* Disable AGP. */
  81         WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BASE, 0);
  82         WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_TOP, 0);
  83         WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BOT, 0x00FFFFFF);
  84
  85         /* Program the system aperture low logical page number. */
  86         WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_LOW_ADDR,
  87                      adev->gmc.vram_start >> 18);
  88         WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
  89                      adev->gmc.vram_end >> 18);
  90
  91         /* Set default page address. */
  92         value = adev->vram_scratch.gpu_addr - adev->gmc.vram_start
  93                 + adev->vm_manager.vram_base_offset;
  94         WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
  95                      (u32)(value >> 12));
  96         WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
  97                      (u32)(value >> 44));
  98
  99         /* Program "protection fault". */
 100         WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
 101                      (u32)(adev->dummy_page_addr >> 12));
 102         WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
 103                      (u32)((u64)adev->dummy_page_addr >> 44));
 104
 105         WREG32_FIELD15(GC, 0, GCVM_L2_PROTECTION_FAULT_CNTL2,
 106                        ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
 107 }
 108
 109
 110 static void gfxhub_v2_0_init_tlb_regs(struct amdgpu_device *adev)
 111 {
 112         uint32_t tmp;
 113
 114         /* Setup TLB control */
 115         tmp = RREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL);
 116
 117         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 118         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 119         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
 120                             ENABLE_ADVANCED_DRIVER_MODEL, 1);
 121         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
 122                             SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 123         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
 124         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
 125                             MTYPE, MTYPE_UC); /* UC, uncached */
 126
 127         WREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL, tmp);
 128 }
 129
 130 static void gfxhub_v2_0_init_cache_regs(struct amdgpu_device *adev)
 131 {
 132         uint32_t tmp;
 133
 134         /* Setup L2 cache */
 135         tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_CNTL);
 136         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_CACHE, 1);
 137         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 0);
 138         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL,
 139                             ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 140         /* XXX for emulation, Refer to closed source code.*/
 141         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL,
 142                             L2_PDE0_CACHE_TAG_GENERATION_MODE, 0);
 143         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 0);
 144         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 145         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0);
 146         WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL, tmp);
 147
 148         tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_CNTL2);
 149         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 150         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 151         WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL2, tmp);
 152
 153         tmp = mmGCVM_L2_CNTL3_DEFAULT;
 154         if (adev->gmc.translate_further) {
 155                 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3, BANK_SELECT, 12);
 156                 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3,
 157                                     L2_CACHE_BIGK_FRAGMENT_SIZE, 9);
 158         } else {
 159                 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3, BANK_SELECT, 9);
 160                 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3,
 161                                     L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
 162         }
 163         WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, tmp);
 164
 165         tmp = mmGCVM_L2_CNTL4_DEFAULT;
 166         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
 167         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);
 168         WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL4, tmp);
 169 }
 170
 171 static void gfxhub_v2_0_enable_system_domain(struct amdgpu_device *adev)
 172 {
 173         uint32_t tmp;
 174
 175         tmp = RREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_CNTL);
 176         tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 177         tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 178         WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_CNTL, tmp);
 179 }
 180
 181 static void gfxhub_v2_0_disable_identity_aperture(struct amdgpu_device *adev)
 182 {
 183         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32,
 184                      0xFFFFFFFF);
 185         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32,
 186                      0x0000000F);
 187
 188         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32,
 189                      0);
 190         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32,
 191                      0);
 192
 193         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32, 0);
 194         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32, 0);
 195
 196 }
 197
 198 static void gfxhub_v2_0_setup_vmid_config(struct amdgpu_device *adev)
 199 {
 200         int i;
 201         uint32_t tmp;
 202
 203         for (i = 0; i <= 14; i++) {
 204                 tmp = RREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_CNTL, i);
 205                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 206                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,
 207                                     adev->vm_manager.num_level);
 208                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 209                                 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 210                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 211                                 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 212                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 213                                 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 214                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 215                                 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 216                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 217                                 READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 218                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 219                                 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 220                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 221                                 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 222                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 223                                 PAGE_TABLE_BLOCK_SIZE,
 224                                 adev->vm_manager.block_size - 9);
 225                 /* Send no-retry XNACK on fault to suppress VM fault storm. */
 226                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 227                                     RETRY_PERMISSION_OR_INVALID_PAGE_FAULT,
 228                                     !amdgpu_noretry);
 229                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_CNTL, i, tmp);
 230                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32, i*2, 0);
 231                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32, i*2, 0);
 232                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32,  i*2,
 233                         lower_32_bits(adev->vm_manager.max_pfn - 1));
 234                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32, i*2,
 235                         upper_32_bits(adev->vm_manager.max_pfn - 1));
 236         }
 237 }
 238
 239 static void gfxhub_v2_0_program_invalidation(struct amdgpu_device *adev)
 240 {
 241         unsigned i;
 242
 243         for (i = 0 ; i < 18; ++i) {
 244                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ADDR_RANGE_LO32,
 245                                     2 * i, 0xffffffff);
 246                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ADDR_RANGE_HI32,
 247                                     2 * i, 0x1f);
 248         }
 249 }
 250
 251 int gfxhub_v2_0_gart_enable(struct amdgpu_device *adev)
 252 {
 253         if (amdgpu_sriov_vf(adev)) {
 254                 /*
 255                  * GCMC_VM_FB_LOCATION_BASE/TOP is NULL for VF, becuase they are
 256                  * VF copy registers so vbios post doesn't program them, for
 257                  * SRIOV driver need to program them
 258                  */
 259                 WREG32_SOC15(GC, 0, mmGCMC_VM_FB_LOCATION_BASE,
 260                              adev->gmc.vram_start >> 24);
 261                 WREG32_SOC15(GC, 0, mmGCMC_VM_FB_LOCATION_TOP,
 262                              adev->gmc.vram_end >> 24);
 263         }
 264
 265         /* GART Enable. */
 266         gfxhub_v2_0_init_gart_aperture_regs(adev);
 267         gfxhub_v2_0_init_system_aperture_regs(adev);
 268         gfxhub_v2_0_init_tlb_regs(adev);
 269         gfxhub_v2_0_init_cache_regs(adev);
 270
 271         gfxhub_v2_0_enable_system_domain(adev);
 272         gfxhub_v2_0_disable_identity_aperture(adev);
 273         gfxhub_v2_0_setup_vmid_config(adev);
 274         gfxhub_v2_0_program_invalidation(adev);
 275
 276         return 0;
 277 }
 278
 279 void gfxhub_v2_0_gart_disable(struct amdgpu_device *adev)
 280 {
 281         u32 tmp;
 282         u32 i;
 283
 284         /* Disable all tables */
 285         for (i = 0; i < 16; i++)
 286                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_CNTL, i, 0);
 287
 288         /* Setup TLB control */
 289         tmp = RREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL);
 290         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 291         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
 292                             ENABLE_ADVANCED_DRIVER_MODEL, 0);
 293         WREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL, tmp);
 294
 295         /* Setup L2 cache */
 296         WREG32_FIELD15(GC, 0, GCVM_L2_CNTL, ENABLE_L2_CACHE, 0);
 297         WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, 0);
 298 }
 299
 300 /**
 301  * gfxhub_v2_0_set_fault_enable_default - update GART/VM fault handling
 302  *
 303  * @adev: amdgpu_device pointer
 304  * @value: true redirects VM faults to the default page
 305  */
 306 void gfxhub_v2_0_set_fault_enable_default(struct amdgpu_device *adev,
 307                                           bool value)
 308 {
 309         u32 tmp;
 310         tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL);
 311         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 312                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 313         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 314                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 315         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 316                             PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 317         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 318                             PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 319         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 320                             TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT,
 321                             value);
 322         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 323                             NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 324         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 325                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 326         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 327                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 328         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 329                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 330         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 331                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 332         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 333                             EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 334         if (!value) {
 335                 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 336                                 CRASH_ON_NO_RETRY_FAULT, 1);
 337                 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 338                                 CRASH_ON_RETRY_FAULT, 1);
 339         }
 340         WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL, tmp);
 341 }
 342
 343 void gfxhub_v2_0_init(struct amdgpu_device *adev)
 344 {
 345         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0];
 346
 347         hub->ctx0_ptb_addr_lo32 =
 348                 SOC15_REG_OFFSET(GC, 0,
 349                                  mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32);
 350         hub->ctx0_ptb_addr_hi32 =
 351                 SOC15_REG_OFFSET(GC, 0,
 352                                  mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32);
 353         hub->vm_inv_eng0_req =
 354                 SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_REQ);
 355         hub->vm_inv_eng0_ack =
 356                 SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ACK);
 357         hub->vm_context0_cntl =
 358                 SOC15_REG_OFFSET(GC, 0, mmGCVM_CONTEXT0_CNTL);
 359         hub->vm_l2_pro_fault_status =
 360                 SOC15_REG_OFFSET(GC, 0, mmGCVM_L2_PROTECTION_FAULT_STATUS);
 361         hub->vm_l2_pro_fault_cntl =
 362                 SOC15_REG_OFFSET(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL);
 363 }