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, 1);
 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         WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, tmp);
 155
 156         tmp = mmGCVM_L2_CNTL4_DEFAULT;
 157         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
 158         tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);
 159         WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL4, tmp);
 160 }
 161
 162 static void gfxhub_v2_0_enable_system_domain(struct amdgpu_device *adev)
 163 {
 164         uint32_t tmp;
 165
 166         tmp = RREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_CNTL);
 167         tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 168         tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 169         WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_CNTL, tmp);
 170 }
 171
 172 static void gfxhub_v2_0_disable_identity_aperture(struct amdgpu_device *adev)
 173 {
 174         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32,
 175                      0xFFFFFFFF);
 176         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32,
 177                      0x0000000F);
 178
 179         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32,
 180                      0);
 181         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32,
 182                      0);
 183
 184         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32, 0);
 185         WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32, 0);
 186
 187 }
 188
 189 static void gfxhub_v2_0_setup_vmid_config(struct amdgpu_device *adev)
 190 {
 191         int i;
 192         uint32_t tmp;
 193
 194         for (i = 0; i <= 14; i++) {
 195                 tmp = RREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_CNTL, i);
 196                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 197                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,
 198                                     adev->vm_manager.num_level);
 199                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 200                                 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 201                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 202                                 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 203                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 204                                 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 205                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 206                                 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 207                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 208                                 READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 209                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 210                                 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 211                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 212                                 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 213                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 214                                 PAGE_TABLE_BLOCK_SIZE,
 215                                 adev->vm_manager.block_size - 9);
 216                 /* Send no-retry XNACK on fault to suppress VM fault storm. */
 217                 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
 218                                     RETRY_PERMISSION_OR_INVALID_PAGE_FAULT,
 219                                     !amdgpu_noretry);
 220                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_CNTL, i, tmp);
 221                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32, i*2, 0);
 222                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32, i*2, 0);
 223                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32,  i*2,
 224                         lower_32_bits(adev->vm_manager.max_pfn - 1));
 225                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32, i*2,
 226                         upper_32_bits(adev->vm_manager.max_pfn - 1));
 227         }
 228 }
 229
 230 static void gfxhub_v2_0_program_invalidation(struct amdgpu_device *adev)
 231 {
 232         unsigned i;
 233
 234         for (i = 0 ; i < 18; ++i) {
 235                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ADDR_RANGE_LO32,
 236                                     2 * i, 0xffffffff);
 237                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ADDR_RANGE_HI32,
 238                                     2 * i, 0x1f);
 239         }
 240 }
 241
 242 int gfxhub_v2_0_gart_enable(struct amdgpu_device *adev)
 243 {
 244         if (amdgpu_sriov_vf(adev)) {
 245                 /*
 246                  * GCMC_VM_FB_LOCATION_BASE/TOP is NULL for VF, becuase they are
 247                  * VF copy registers so vbios post doesn't program them, for
 248                  * SRIOV driver need to program them
 249                  */
 250                 WREG32_SOC15(GC, 0, mmGCMC_VM_FB_LOCATION_BASE,
 251                              adev->gmc.vram_start >> 24);
 252                 WREG32_SOC15(GC, 0, mmGCMC_VM_FB_LOCATION_TOP,
 253                              adev->gmc.vram_end >> 24);
 254         }
 255
 256         /* GART Enable. */
 257         gfxhub_v2_0_init_gart_aperture_regs(adev);
 258         gfxhub_v2_0_init_system_aperture_regs(adev);
 259         gfxhub_v2_0_init_tlb_regs(adev);
 260         gfxhub_v2_0_init_cache_regs(adev);
 261
 262         gfxhub_v2_0_enable_system_domain(adev);
 263         gfxhub_v2_0_disable_identity_aperture(adev);
 264         gfxhub_v2_0_setup_vmid_config(adev);
 265         gfxhub_v2_0_program_invalidation(adev);
 266
 267         return 0;
 268 }
 269
 270 void gfxhub_v2_0_gart_disable(struct amdgpu_device *adev)
 271 {
 272         u32 tmp;
 273         u32 i;
 274
 275         /* Disable all tables */
 276         for (i = 0; i < 16; i++)
 277                 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_CNTL, i, 0);
 278
 279         /* Setup TLB control */
 280         tmp = RREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL);
 281         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 282         tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
 283                             ENABLE_ADVANCED_DRIVER_MODEL, 0);
 284         WREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL, tmp);
 285
 286         /* Setup L2 cache */
 287         WREG32_FIELD15(GC, 0, GCVM_L2_CNTL, ENABLE_L2_CACHE, 0);
 288         WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, 0);
 289 }
 290
 291 /**
 292  * gfxhub_v2_0_set_fault_enable_default - update GART/VM fault handling
 293  *
 294  * @adev: amdgpu_device pointer
 295  * @value: true redirects VM faults to the default page
 296  */
 297 void gfxhub_v2_0_set_fault_enable_default(struct amdgpu_device *adev,
 298                                           bool value)
 299 {
 300         u32 tmp;
 301         tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL);
 302         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 303                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 304         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 305                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 306         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 307                             PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 308         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 309                             PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 310         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 311                             TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT,
 312                             value);
 313         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 314                             NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 315         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 316                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 317         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 318                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 319         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 320                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 321         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 322                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 323         tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 324                             EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 325         if (!value) {
 326                 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 327                                 CRASH_ON_NO_RETRY_FAULT, 1);
 328                 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
 329                                 CRASH_ON_RETRY_FAULT, 1);
 330         }
 331         WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL, tmp);
 332 }
 333
 334 void gfxhub_v2_0_init(struct amdgpu_device *adev)
 335 {
 336         struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB];
 337
 338         hub->ctx0_ptb_addr_lo32 =
 339                 SOC15_REG_OFFSET(GC, 0,
 340                                  mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32);
 341         hub->ctx0_ptb_addr_hi32 =
 342                 SOC15_REG_OFFSET(GC, 0,
 343                                  mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32);
 344         hub->vm_inv_eng0_req =
 345                 SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_REQ);
 346         hub->vm_inv_eng0_ack =
 347                 SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ACK);
 348         hub->vm_context0_cntl =
 349                 SOC15_REG_OFFSET(GC, 0, mmGCVM_CONTEXT0_CNTL);
 350         hub->vm_l2_pro_fault_status =
 351                 SOC15_REG_OFFSET(GC, 0, mmGCVM_L2_PROTECTION_FAULT_STATUS);
 352         hub->vm_l2_pro_fault_cntl =
 353                 SOC15_REG_OFFSET(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL);
 354 }