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 "amdgpu_ras.h" 25 #include "mmhub_v1_0.h" 26 27 #include "mmhub/mmhub_1_0_offset.h" 28 #include "mmhub/mmhub_1_0_sh_mask.h" 29 #include "mmhub/mmhub_1_0_default.h" 30 #include "mmhub/mmhub_9_4_0_offset.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 #define EA_EDC_CNT_MASK 0x3 39 #define EA_EDC_CNT_SHIFT 0x2 40 41 u64 mmhub_v1_0_get_fb_location(struct amdgpu_device *adev) 42 { 43 u64 base = RREG32_SOC15(MMHUB, 0, mmMC_VM_FB_LOCATION_BASE); 44 u64 top = RREG32_SOC15(MMHUB, 0, mmMC_VM_FB_LOCATION_TOP); 45 46 base &= MC_VM_FB_LOCATION_BASE__FB_BASE_MASK; 47 base <<= 24; 48 49 top &= MC_VM_FB_LOCATION_TOP__FB_TOP_MASK; 50 top <<= 24; 51 52 adev->gmc.fb_start = base; 53 adev->gmc.fb_end = top; 54 55 return base; 56 } 57 58 void mmhub_v1_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid, 59 uint64_t page_table_base) 60 { 61 /* two registers distance between mmVM_CONTEXT0_* to mmVM_CONTEXT1_* */ 62 int offset = mmVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32 63 - mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32; 64 65 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32, 66 offset * vmid, lower_32_bits(page_table_base)); 67 68 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32, 69 offset * vmid, upper_32_bits(page_table_base)); 70 } 71 72 static void mmhub_v1_0_init_gart_aperture_regs(struct amdgpu_device *adev) 73 { 74 uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo); 75 76 mmhub_v1_0_setup_vm_pt_regs(adev, 0, pt_base); 77 78 WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32, 79 (u32)(adev->gmc.gart_start >> 12)); 80 WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32, 81 (u32)(adev->gmc.gart_start >> 44)); 82 83 WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32, 84 (u32)(adev->gmc.gart_end >> 12)); 85 WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32, 86 (u32)(adev->gmc.gart_end >> 44)); 87 } 88 89 static void mmhub_v1_0_init_system_aperture_regs(struct amdgpu_device *adev) 90 { 91 uint64_t value; 92 uint32_t tmp; 93 94 /* Program the AGP BAR */ 95 WREG32_SOC15(MMHUB, 0, mmMC_VM_AGP_BASE, 0); 96 WREG32_SOC15(MMHUB, 0, mmMC_VM_AGP_BOT, adev->gmc.agp_start >> 24); 97 WREG32_SOC15(MMHUB, 0, mmMC_VM_AGP_TOP, adev->gmc.agp_end >> 24); 98 99 /* Program the system aperture low logical page number. */ 100 WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_LOW_ADDR, 101 min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18); 102 103 if (adev->asic_type == CHIP_RAVEN && adev->rev_id >= 0x8) 104 /* 105 * Raven2 has a HW issue that it is unable to use the vram which 106 * is out of MC_VM_SYSTEM_APERTURE_HIGH_ADDR. So here is the 107 * workaround that increase system aperture high address (add 1) 108 * to get rid of the VM fault and hardware hang. 109 */ 110 WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 111 max((adev->gmc.fb_end >> 18) + 0x1, 112 adev->gmc.agp_end >> 18)); 113 else 114 WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 115 max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18); 116 117 if (amdgpu_sriov_vf(adev)) 118 return; 119 120 /* Set default page address. */ 121 value = adev->vram_scratch.gpu_addr - adev->gmc.vram_start + 122 adev->vm_manager.vram_base_offset; 123 WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB, 124 (u32)(value >> 12)); 125 WREG32_SOC15(MMHUB, 0, mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB, 126 (u32)(value >> 44)); 127 128 /* Program "protection fault". */ 129 WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32, 130 (u32)(adev->dummy_page_addr >> 12)); 131 WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32, 132 (u32)((u64)adev->dummy_page_addr >> 44)); 133 134 tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL2); 135 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL2, 136 ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1); 137 WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL2, tmp); 138 } 139 140 static void mmhub_v1_0_init_tlb_regs(struct amdgpu_device *adev) 141 { 142 uint32_t tmp; 143 144 /* Setup TLB control */ 145 tmp = RREG32_SOC15(MMHUB, 0, mmMC_VM_MX_L1_TLB_CNTL); 146 147 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1); 148 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3); 149 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, 150 ENABLE_ADVANCED_DRIVER_MODEL, 1); 151 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, 152 SYSTEM_APERTURE_UNMAPPED_ACCESS, 0); 153 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0); 154 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, 155 MTYPE, MTYPE_UC);/* XXX for emulation. */ 156 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ATC_EN, 1); 157 158 WREG32_SOC15(MMHUB, 0, mmMC_VM_MX_L1_TLB_CNTL, tmp); 159 } 160 161 static void mmhub_v1_0_init_cache_regs(struct amdgpu_device *adev) 162 { 163 uint32_t tmp; 164 165 if (amdgpu_sriov_vf(adev)) 166 return; 167 168 /* Setup L2 cache */ 169 tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL); 170 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1); 171 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1); 172 /* XXX for emulation, Refer to closed source code.*/ 173 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, L2_PDE0_CACHE_TAG_GENERATION_MODE, 174 0); 175 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 0); 176 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1); 177 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0); 178 WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL, tmp); 179 180 tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL2); 181 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1); 182 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1); 183 WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL2, tmp); 184 185 if (adev->gmc.translate_further) { 186 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 12); 187 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, 188 L2_CACHE_BIGK_FRAGMENT_SIZE, 9); 189 } else { 190 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 9); 191 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, 192 L2_CACHE_BIGK_FRAGMENT_SIZE, 6); 193 } 194 WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL3, tmp); 195 196 tmp = mmVM_L2_CNTL4_DEFAULT; 197 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0); 198 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0); 199 WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL4, tmp); 200 } 201 202 static void mmhub_v1_0_enable_system_domain(struct amdgpu_device *adev) 203 { 204 uint32_t tmp; 205 206 tmp = RREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_CNTL); 207 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1); 208 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0); 209 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, 210 RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0); 211 WREG32_SOC15(MMHUB, 0, mmVM_CONTEXT0_CNTL, tmp); 212 } 213 214 static void mmhub_v1_0_disable_identity_aperture(struct amdgpu_device *adev) 215 { 216 if (amdgpu_sriov_vf(adev)) 217 return; 218 219 WREG32_SOC15(MMHUB, 0, mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32, 220 0XFFFFFFFF); 221 WREG32_SOC15(MMHUB, 0, mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32, 222 0x0000000F); 223 224 WREG32_SOC15(MMHUB, 0, 225 mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32, 0); 226 WREG32_SOC15(MMHUB, 0, 227 mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32, 0); 228 229 WREG32_SOC15(MMHUB, 0, mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32, 230 0); 231 WREG32_SOC15(MMHUB, 0, mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32, 232 0); 233 } 234 235 static void mmhub_v1_0_setup_vmid_config(struct amdgpu_device *adev) 236 { 237 unsigned num_level, block_size; 238 uint32_t tmp; 239 int i; 240 241 num_level = adev->vm_manager.num_level; 242 block_size = adev->vm_manager.block_size; 243 if (adev->gmc.translate_further) 244 num_level -= 1; 245 else 246 block_size -= 9; 247 248 for (i = 0; i <= 14; i++) { 249 tmp = RREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_CNTL, i); 250 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1); 251 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 252 num_level); 253 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 254 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 255 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 256 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 257 1); 258 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 259 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 260 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 261 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 262 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 263 READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 264 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 265 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 266 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 267 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 268 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 269 PAGE_TABLE_BLOCK_SIZE, 270 block_size); 271 /* Send no-retry XNACK on fault to suppress VM fault storm. */ 272 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 273 RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 274 !amdgpu_noretry); 275 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_CNTL, i, tmp); 276 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32, i*2, 0); 277 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32, i*2, 0); 278 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32, i*2, 279 lower_32_bits(adev->vm_manager.max_pfn - 1)); 280 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32, i*2, 281 upper_32_bits(adev->vm_manager.max_pfn - 1)); 282 } 283 } 284 285 static void mmhub_v1_0_program_invalidation(struct amdgpu_device *adev) 286 { 287 unsigned i; 288 289 for (i = 0; i < 18; ++i) { 290 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_ADDR_RANGE_LO32, 291 2 * i, 0xffffffff); 292 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_ADDR_RANGE_HI32, 293 2 * i, 0x1f); 294 } 295 } 296 297 void mmhub_v1_0_update_power_gating(struct amdgpu_device *adev, 298 bool enable) 299 { 300 if (amdgpu_sriov_vf(adev)) 301 return; 302 303 if (enable && adev->pg_flags & AMD_PG_SUPPORT_MMHUB) { 304 if (adev->powerplay.pp_funcs && adev->powerplay.pp_funcs->set_powergating_by_smu) 305 amdgpu_dpm_set_powergating_by_smu(adev, AMD_IP_BLOCK_TYPE_GMC, true); 306 307 } 308 } 309 310 int mmhub_v1_0_gart_enable(struct amdgpu_device *adev) 311 { 312 if (amdgpu_sriov_vf(adev)) { 313 /* 314 * MC_VM_FB_LOCATION_BASE/TOP is NULL for VF, becuase they are 315 * VF copy registers so vbios post doesn't program them, for 316 * SRIOV driver need to program them 317 */ 318 WREG32_SOC15(MMHUB, 0, mmMC_VM_FB_LOCATION_BASE, 319 adev->gmc.vram_start >> 24); 320 WREG32_SOC15(MMHUB, 0, mmMC_VM_FB_LOCATION_TOP, 321 adev->gmc.vram_end >> 24); 322 } 323 324 /* GART Enable. */ 325 mmhub_v1_0_init_gart_aperture_regs(adev); 326 mmhub_v1_0_init_system_aperture_regs(adev); 327 mmhub_v1_0_init_tlb_regs(adev); 328 mmhub_v1_0_init_cache_regs(adev); 329 330 mmhub_v1_0_enable_system_domain(adev); 331 mmhub_v1_0_disable_identity_aperture(adev); 332 mmhub_v1_0_setup_vmid_config(adev); 333 mmhub_v1_0_program_invalidation(adev); 334 335 return 0; 336 } 337 338 void mmhub_v1_0_gart_disable(struct amdgpu_device *adev) 339 { 340 u32 tmp; 341 u32 i; 342 343 /* Disable all tables */ 344 for (i = 0; i < 16; i++) 345 WREG32_SOC15_OFFSET(MMHUB, 0, mmVM_CONTEXT0_CNTL, i, 0); 346 347 /* Setup TLB control */ 348 tmp = RREG32_SOC15(MMHUB, 0, mmMC_VM_MX_L1_TLB_CNTL); 349 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0); 350 tmp = REG_SET_FIELD(tmp, 351 MC_VM_MX_L1_TLB_CNTL, 352 ENABLE_ADVANCED_DRIVER_MODEL, 353 0); 354 WREG32_SOC15(MMHUB, 0, mmMC_VM_MX_L1_TLB_CNTL, tmp); 355 356 if (!amdgpu_sriov_vf(adev)) { 357 /* Setup L2 cache */ 358 tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL); 359 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0); 360 WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL, tmp); 361 WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL3, 0); 362 } 363 } 364 365 /** 366 * mmhub_v1_0_set_fault_enable_default - update GART/VM fault handling 367 * 368 * @adev: amdgpu_device pointer 369 * @value: true redirects VM faults to the default page 370 */ 371 void mmhub_v1_0_set_fault_enable_default(struct amdgpu_device *adev, bool value) 372 { 373 u32 tmp; 374 375 if (amdgpu_sriov_vf(adev)) 376 return; 377 378 tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL); 379 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 380 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 381 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 382 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value); 383 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 384 PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value); 385 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 386 PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value); 387 tmp = REG_SET_FIELD(tmp, 388 VM_L2_PROTECTION_FAULT_CNTL, 389 TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT, 390 value); 391 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 392 NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value); 393 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 394 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 395 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 396 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value); 397 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 398 READ_PROTECTION_FAULT_ENABLE_DEFAULT, value); 399 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 400 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 401 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 402 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 403 if (!value) { 404 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 405 CRASH_ON_NO_RETRY_FAULT, 1); 406 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 407 CRASH_ON_RETRY_FAULT, 1); 408 } 409 410 WREG32_SOC15(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL, tmp); 411 } 412 413 void mmhub_v1_0_init(struct amdgpu_device *adev) 414 { 415 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB_0]; 416 417 hub->ctx0_ptb_addr_lo32 = 418 SOC15_REG_OFFSET(MMHUB, 0, 419 mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32); 420 hub->ctx0_ptb_addr_hi32 = 421 SOC15_REG_OFFSET(MMHUB, 0, 422 mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32); 423 hub->vm_inv_eng0_sem = 424 SOC15_REG_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_SEM); 425 hub->vm_inv_eng0_req = 426 SOC15_REG_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_REQ); 427 hub->vm_inv_eng0_ack = 428 SOC15_REG_OFFSET(MMHUB, 0, mmVM_INVALIDATE_ENG0_ACK); 429 hub->vm_context0_cntl = 430 SOC15_REG_OFFSET(MMHUB, 0, mmVM_CONTEXT0_CNTL); 431 hub->vm_l2_pro_fault_status = 432 SOC15_REG_OFFSET(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_STATUS); 433 hub->vm_l2_pro_fault_cntl = 434 SOC15_REG_OFFSET(MMHUB, 0, mmVM_L2_PROTECTION_FAULT_CNTL); 435 436 } 437 438 static void mmhub_v1_0_update_medium_grain_clock_gating(struct amdgpu_device *adev, 439 bool enable) 440 { 441 uint32_t def, data, def1, data1, def2 = 0, data2 = 0; 442 443 def = data = RREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG); 444 445 if (adev->asic_type != CHIP_RAVEN) { 446 def1 = data1 = RREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2); 447 def2 = data2 = RREG32_SOC15(MMHUB, 0, mmDAGB1_CNTL_MISC2); 448 } else 449 def1 = data1 = RREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2_RV); 450 451 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG)) { 452 data |= ATC_L2_MISC_CG__ENABLE_MASK; 453 454 data1 &= ~(DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK | 455 DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK | 456 DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK | 457 DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK | 458 DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK | 459 DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK); 460 461 if (adev->asic_type != CHIP_RAVEN) 462 data2 &= ~(DAGB1_CNTL_MISC2__DISABLE_WRREQ_CG_MASK | 463 DAGB1_CNTL_MISC2__DISABLE_WRRET_CG_MASK | 464 DAGB1_CNTL_MISC2__DISABLE_RDREQ_CG_MASK | 465 DAGB1_CNTL_MISC2__DISABLE_RDRET_CG_MASK | 466 DAGB1_CNTL_MISC2__DISABLE_TLBWR_CG_MASK | 467 DAGB1_CNTL_MISC2__DISABLE_TLBRD_CG_MASK); 468 } else { 469 data &= ~ATC_L2_MISC_CG__ENABLE_MASK; 470 471 data1 |= (DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK | 472 DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK | 473 DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK | 474 DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK | 475 DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK | 476 DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK); 477 478 if (adev->asic_type != CHIP_RAVEN) 479 data2 |= (DAGB1_CNTL_MISC2__DISABLE_WRREQ_CG_MASK | 480 DAGB1_CNTL_MISC2__DISABLE_WRRET_CG_MASK | 481 DAGB1_CNTL_MISC2__DISABLE_RDREQ_CG_MASK | 482 DAGB1_CNTL_MISC2__DISABLE_RDRET_CG_MASK | 483 DAGB1_CNTL_MISC2__DISABLE_TLBWR_CG_MASK | 484 DAGB1_CNTL_MISC2__DISABLE_TLBRD_CG_MASK); 485 } 486 487 if (def != data) 488 WREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG, data); 489 490 if (def1 != data1) { 491 if (adev->asic_type != CHIP_RAVEN) 492 WREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2, data1); 493 else 494 WREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2_RV, data1); 495 } 496 497 if (adev->asic_type != CHIP_RAVEN && def2 != data2) 498 WREG32_SOC15(MMHUB, 0, mmDAGB1_CNTL_MISC2, data2); 499 } 500 501 static void mmhub_v1_0_update_medium_grain_light_sleep(struct amdgpu_device *adev, 502 bool enable) 503 { 504 uint32_t def, data; 505 506 def = data = RREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG); 507 508 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS)) 509 data |= ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK; 510 else 511 data &= ~ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK; 512 513 if (def != data) 514 WREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG, data); 515 } 516 517 int mmhub_v1_0_set_clockgating(struct amdgpu_device *adev, 518 enum amd_clockgating_state state) 519 { 520 if (amdgpu_sriov_vf(adev)) 521 return 0; 522 523 switch (adev->asic_type) { 524 case CHIP_VEGA10: 525 case CHIP_VEGA12: 526 case CHIP_VEGA20: 527 case CHIP_RAVEN: 528 case CHIP_RENOIR: 529 mmhub_v1_0_update_medium_grain_clock_gating(adev, 530 state == AMD_CG_STATE_GATE ? true : false); 531 mmhub_v1_0_update_medium_grain_light_sleep(adev, 532 state == AMD_CG_STATE_GATE ? true : false); 533 break; 534 default: 535 break; 536 } 537 538 return 0; 539 } 540 541 void mmhub_v1_0_get_clockgating(struct amdgpu_device *adev, u32 *flags) 542 { 543 int data, data1; 544 545 if (amdgpu_sriov_vf(adev)) 546 *flags = 0; 547 548 data = RREG32_SOC15(MMHUB, 0, mmATC_L2_MISC_CG); 549 550 data1 = RREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2); 551 552 /* AMD_CG_SUPPORT_MC_MGCG */ 553 if ((data & ATC_L2_MISC_CG__ENABLE_MASK) && 554 !(data1 & (DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK | 555 DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK | 556 DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK | 557 DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK | 558 DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK | 559 DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK))) 560 *flags |= AMD_CG_SUPPORT_MC_MGCG; 561 562 /* AMD_CG_SUPPORT_MC_LS */ 563 if (data & ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK) 564 *flags |= AMD_CG_SUPPORT_MC_LS; 565 } 566 567 static void mmhub_v1_0_query_ras_error_count(struct amdgpu_device *adev, 568 void *ras_error_status) 569 { 570 int i; 571 uint32_t ea0_edc_cnt, ea0_edc_cnt2; 572 uint32_t ea1_edc_cnt, ea1_edc_cnt2; 573 struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; 574 575 /* EDC CNT will be cleared automatically after read */ 576 ea0_edc_cnt = RREG32_SOC15(MMHUB, 0, mmMMEA0_EDC_CNT_VG20); 577 ea0_edc_cnt2 = RREG32_SOC15(MMHUB, 0, mmMMEA0_EDC_CNT2_VG20); 578 ea1_edc_cnt = RREG32_SOC15(MMHUB, 0, mmMMEA1_EDC_CNT_VG20); 579 ea1_edc_cnt2 = RREG32_SOC15(MMHUB, 0, mmMMEA1_EDC_CNT2_VG20); 580 581 /* error count of each error type is recorded by 2 bits, 582 * ce and ue count in EDC_CNT 583 */ 584 for (i = 0; i < 5; i++) { 585 err_data->ce_count += (ea0_edc_cnt & EA_EDC_CNT_MASK); 586 err_data->ce_count += (ea1_edc_cnt & EA_EDC_CNT_MASK); 587 ea0_edc_cnt >>= EA_EDC_CNT_SHIFT; 588 ea1_edc_cnt >>= EA_EDC_CNT_SHIFT; 589 err_data->ue_count += (ea0_edc_cnt & EA_EDC_CNT_MASK); 590 err_data->ue_count += (ea1_edc_cnt & EA_EDC_CNT_MASK); 591 ea0_edc_cnt >>= EA_EDC_CNT_SHIFT; 592 ea1_edc_cnt >>= EA_EDC_CNT_SHIFT; 593 } 594 /* successive ue count in EDC_CNT */ 595 for (i = 0; i < 5; i++) { 596 err_data->ue_count += (ea0_edc_cnt & EA_EDC_CNT_MASK); 597 err_data->ue_count += (ea1_edc_cnt & EA_EDC_CNT_MASK); 598 ea0_edc_cnt >>= EA_EDC_CNT_SHIFT; 599 ea1_edc_cnt >>= EA_EDC_CNT_SHIFT; 600 } 601 602 /* ce and ue count in EDC_CNT2 */ 603 for (i = 0; i < 3; i++) { 604 err_data->ce_count += (ea0_edc_cnt2 & EA_EDC_CNT_MASK); 605 err_data->ce_count += (ea1_edc_cnt2 & EA_EDC_CNT_MASK); 606 ea0_edc_cnt2 >>= EA_EDC_CNT_SHIFT; 607 ea1_edc_cnt2 >>= EA_EDC_CNT_SHIFT; 608 err_data->ue_count += (ea0_edc_cnt2 & EA_EDC_CNT_MASK); 609 err_data->ue_count += (ea1_edc_cnt2 & EA_EDC_CNT_MASK); 610 ea0_edc_cnt2 >>= EA_EDC_CNT_SHIFT; 611 ea1_edc_cnt2 >>= EA_EDC_CNT_SHIFT; 612 } 613 /* successive ue count in EDC_CNT2 */ 614 for (i = 0; i < 6; i++) { 615 err_data->ue_count += (ea0_edc_cnt2 & EA_EDC_CNT_MASK); 616 err_data->ue_count += (ea1_edc_cnt2 & EA_EDC_CNT_MASK); 617 ea0_edc_cnt2 >>= EA_EDC_CNT_SHIFT; 618 ea1_edc_cnt2 >>= EA_EDC_CNT_SHIFT; 619 } 620 } 621 622 const struct amdgpu_mmhub_funcs mmhub_v1_0_funcs = { 623 .ras_late_init = amdgpu_mmhub_ras_late_init, 624 .query_ras_error_count = mmhub_v1_0_query_ras_error_count, 625 }; 626