1 /* 2 * Copyright 2023 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 "mmhub_v3_3.h" 26 27 #include "mmhub/mmhub_3_3_0_offset.h" 28 #include "mmhub/mmhub_3_3_0_sh_mask.h" 29 30 #include "navi10_enum.h" 31 #include "soc15_common.h" 32 33 #define regMMVM_L2_CNTL3_DEFAULT 0x80100007 34 #define regMMVM_L2_CNTL4_DEFAULT 0x000000c1 35 #define regMMVM_L2_CNTL5_DEFAULT 0x00003fe0 36 37 static const char *mmhub_client_ids_v3_3[][2] = { 38 [0][0] = "VMC", 39 [4][0] = "DCEDMC", 40 [6][0] = "MP0", 41 [7][0] = "MP1", 42 [8][0] = "MPM", 43 [24][0] = "HDP", 44 [25][0] = "LSDMA", 45 [26][0] = "JPEG", 46 [27][0] = "VPE", 47 [29][0] = "VCNU", 48 [30][0] = "VCN", 49 [3][1] = "DCEDWB", 50 [4][1] = "DCEDMC", 51 [6][1] = "MP0", 52 [7][1] = "MP1", 53 [8][1] = "MPM", 54 [21][1] = "OSSSYS", 55 [24][1] = "HDP", 56 [25][1] = "LSDMA", 57 [26][1] = "JPEG", 58 [27][1] = "VPE", 59 [29][1] = "VCNU", 60 [30][1] = "VCN", 61 }; 62 63 static uint32_t mmhub_v3_3_get_invalidate_req(unsigned int vmid, 64 uint32_t flush_type) 65 { 66 u32 req = 0; 67 68 /* invalidate using legacy mode on vmid*/ 69 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, 70 PER_VMID_INVALIDATE_REQ, 1 << vmid); 71 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, flush_type ? : 1); 72 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PTES, 1); 73 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE0, 1); 74 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE1, 1); 75 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE2, 1); 76 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L1_PTES, 1); 77 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, 78 CLEAR_PROTECTION_FAULT_STATUS_ADDR, 0); 79 80 return req; 81 } 82 83 static void 84 mmhub_v3_3_print_l2_protection_fault_status(struct amdgpu_device *adev, 85 uint32_t status) 86 { 87 uint32_t cid, rw; 88 const char *mmhub_cid = NULL; 89 90 cid = REG_GET_FIELD(status, 91 MMVM_L2_PROTECTION_FAULT_STATUS, CID); 92 rw = REG_GET_FIELD(status, 93 MMVM_L2_PROTECTION_FAULT_STATUS, RW); 94 95 dev_err(adev->dev, 96 "MMVM_L2_PROTECTION_FAULT_STATUS:0x%08X\n", 97 status); 98 99 switch (amdgpu_ip_version(adev, MMHUB_HWIP, 0)) { 100 case IP_VERSION(3, 3, 0): 101 mmhub_cid = mmhub_client_ids_v3_3[cid][rw]; 102 break; 103 default: 104 mmhub_cid = NULL; 105 break; 106 } 107 108 if (!mmhub_cid && cid == 0x140) 109 mmhub_cid = "UMSCH"; 110 111 dev_err(adev->dev, "\t Faulty UTCL2 client ID: %s (0x%x)\n", 112 mmhub_cid ? mmhub_cid : "unknown", cid); 113 dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n", 114 REG_GET_FIELD(status, 115 MMVM_L2_PROTECTION_FAULT_STATUS, MORE_FAULTS)); 116 dev_err(adev->dev, "\t WALKER_ERROR: 0x%lx\n", 117 REG_GET_FIELD(status, 118 MMVM_L2_PROTECTION_FAULT_STATUS, WALKER_ERROR)); 119 dev_err(adev->dev, "\t PERMISSION_FAULTS: 0x%lx\n", 120 REG_GET_FIELD(status, 121 MMVM_L2_PROTECTION_FAULT_STATUS, PERMISSION_FAULTS)); 122 dev_err(adev->dev, "\t MAPPING_ERROR: 0x%lx\n", 123 REG_GET_FIELD(status, 124 MMVM_L2_PROTECTION_FAULT_STATUS, MAPPING_ERROR)); 125 dev_err(adev->dev, "\t RW: 0x%x\n", rw); 126 } 127 128 static void mmhub_v3_3_setup_vm_pt_regs(struct amdgpu_device *adev, 129 uint32_t vmid, 130 uint64_t page_table_base) 131 { 132 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)]; 133 134 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32, 135 hub->ctx_addr_distance * vmid, 136 lower_32_bits(page_table_base)); 137 138 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32, 139 hub->ctx_addr_distance * vmid, 140 upper_32_bits(page_table_base)); 141 142 } 143 144 static void mmhub_v3_3_init_gart_aperture_regs(struct amdgpu_device *adev) 145 { 146 uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo); 147 148 mmhub_v3_3_setup_vm_pt_regs(adev, 0, pt_base); 149 150 WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32, 151 (u32)(adev->gmc.gart_start >> 12)); 152 WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32, 153 (u32)(adev->gmc.gart_start >> 44)); 154 155 WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32, 156 (u32)(adev->gmc.gart_end >> 12)); 157 WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32, 158 (u32)(adev->gmc.gart_end >> 44)); 159 } 160 161 static void mmhub_v3_3_init_system_aperture_regs(struct amdgpu_device *adev) 162 { 163 uint64_t value; 164 uint32_t tmp; 165 166 /* Program the AGP BAR */ 167 WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BASE, 0); 168 WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT, adev->gmc.agp_start >> 24); 169 WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP, adev->gmc.agp_end >> 24); 170 171 /* 172 * the new L1 policy will block SRIOV guest from writing 173 * these regs, and they will be programed at host. 174 * so skip programing these regs. 175 */ 176 /* Program the system aperture low logical page number. */ 177 WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_LOW_ADDR, 178 min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18); 179 WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 180 max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18); 181 182 /* Set default page address. */ 183 value = amdgpu_gmc_vram_mc2pa(adev, adev->mem_scratch.gpu_addr); 184 WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB, 185 (u32)(value >> 12)); 186 WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB, 187 (u32)(value >> 44)); 188 189 /* Program "protection fault". */ 190 WREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32, 191 (u32)(adev->dummy_page_addr >> 12)); 192 WREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32, 193 (u32)((u64)adev->dummy_page_addr >> 44)); 194 195 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL2); 196 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL2, 197 ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1); 198 WREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL2, tmp); 199 } 200 201 static void mmhub_v3_3_init_tlb_regs(struct amdgpu_device *adev) 202 { 203 uint32_t tmp; 204 205 /* Setup TLB control */ 206 tmp = RREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL); 207 208 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1); 209 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3); 210 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, 211 ENABLE_ADVANCED_DRIVER_MODEL, 1); 212 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, 213 SYSTEM_APERTURE_UNMAPPED_ACCESS, 0); 214 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0); 215 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, 216 MTYPE, MTYPE_UC); /* UC, uncached */ 217 218 WREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL, tmp); 219 } 220 221 static void mmhub_v3_3_init_cache_regs(struct amdgpu_device *adev) 222 { 223 uint32_t tmp; 224 225 /* Setup L2 cache */ 226 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL); 227 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_CACHE, 1); 228 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 0); 229 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, 230 ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1); 231 /* XXX for emulation, Refer to closed source code.*/ 232 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, L2_PDE0_CACHE_TAG_GENERATION_MODE, 233 0); 234 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 0); 235 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1); 236 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0); 237 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL, tmp); 238 239 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL2); 240 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1); 241 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL2, INVALIDATE_L2_CACHE, 1); 242 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL2, tmp); 243 244 tmp = regMMVM_L2_CNTL3_DEFAULT; 245 if (adev->gmc.translate_further) { 246 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3, BANK_SELECT, 12); 247 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3, 248 L2_CACHE_BIGK_FRAGMENT_SIZE, 9); 249 } else { 250 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3, BANK_SELECT, 9); 251 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3, 252 L2_CACHE_BIGK_FRAGMENT_SIZE, 6); 253 } 254 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL3, tmp); 255 256 tmp = regMMVM_L2_CNTL4_DEFAULT; 257 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0); 258 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0); 259 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL4, tmp); 260 261 tmp = regMMVM_L2_CNTL5_DEFAULT; 262 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL5, L2_CACHE_SMALLK_FRAGMENT_SIZE, 0); 263 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL5, tmp); 264 } 265 266 static void mmhub_v3_3_enable_system_domain(struct amdgpu_device *adev) 267 { 268 uint32_t tmp; 269 270 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_CNTL); 271 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1); 272 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0); 273 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL, 274 RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0); 275 276 WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_CNTL, tmp); 277 } 278 279 static void mmhub_v3_3_disable_identity_aperture(struct amdgpu_device *adev) 280 { 281 WREG32_SOC15(MMHUB, 0, 282 regMMVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32, 283 0xFFFFFFFF); 284 WREG32_SOC15(MMHUB, 0, 285 regMMVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32, 286 0x0000000F); 287 288 WREG32_SOC15(MMHUB, 0, 289 regMMVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32, 0); 290 WREG32_SOC15(MMHUB, 0, 291 regMMVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32, 0); 292 293 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32, 294 0); 295 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32, 296 0); 297 } 298 299 static void mmhub_v3_3_setup_vmid_config(struct amdgpu_device *adev) 300 { 301 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)]; 302 int i; 303 uint32_t tmp; 304 305 for (i = 0; i <= 14; i++) { 306 tmp = RREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_CNTL, i * hub->ctx_distance); 307 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1); 308 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 309 adev->vm_manager.num_level); 310 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, 311 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 312 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, 313 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 314 1); 315 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, 316 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 317 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, 318 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 319 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, 320 READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 321 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, 322 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 323 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, 324 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 325 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, 326 PAGE_TABLE_BLOCK_SIZE, 327 adev->vm_manager.block_size - 9); 328 /* Send no-retry XNACK on fault to suppress VM fault storm. */ 329 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, 330 RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 331 !amdgpu_noretry); 332 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_CNTL, 333 i * hub->ctx_distance, tmp); 334 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32, 335 i * hub->ctx_addr_distance, 0); 336 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32, 337 i * hub->ctx_addr_distance, 0); 338 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32, 339 i * hub->ctx_addr_distance, 340 lower_32_bits(adev->vm_manager.max_pfn - 1)); 341 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32, 342 i * hub->ctx_addr_distance, 343 upper_32_bits(adev->vm_manager.max_pfn - 1)); 344 } 345 346 hub->vm_cntx_cntl = tmp; 347 } 348 349 static void mmhub_v3_3_program_invalidation(struct amdgpu_device *adev) 350 { 351 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)]; 352 unsigned int i; 353 354 for (i = 0; i < 18; ++i) { 355 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_ADDR_RANGE_LO32, 356 i * hub->eng_addr_distance, 0xffffffff); 357 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_ADDR_RANGE_HI32, 358 i * hub->eng_addr_distance, 0x1f); 359 } 360 } 361 362 static int mmhub_v3_3_gart_enable(struct amdgpu_device *adev) 363 { 364 /* GART Enable. */ 365 mmhub_v3_3_init_gart_aperture_regs(adev); 366 mmhub_v3_3_init_system_aperture_regs(adev); 367 mmhub_v3_3_init_tlb_regs(adev); 368 mmhub_v3_3_init_cache_regs(adev); 369 370 mmhub_v3_3_enable_system_domain(adev); 371 mmhub_v3_3_disable_identity_aperture(adev); 372 mmhub_v3_3_setup_vmid_config(adev); 373 mmhub_v3_3_program_invalidation(adev); 374 375 return 0; 376 } 377 378 static void mmhub_v3_3_gart_disable(struct amdgpu_device *adev) 379 { 380 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)]; 381 u32 tmp; 382 u32 i; 383 384 /* Disable all tables */ 385 for (i = 0; i < 16; i++) 386 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT0_CNTL, 387 i * hub->ctx_distance, 0); 388 389 /* Setup TLB control */ 390 tmp = RREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL); 391 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0); 392 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, 393 ENABLE_ADVANCED_DRIVER_MODEL, 0); 394 WREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL, tmp); 395 396 /* Setup L2 cache */ 397 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL); 398 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_CACHE, 0); 399 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL, tmp); 400 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL3, 0); 401 } 402 403 /** 404 * mmhub_v3_3_set_fault_enable_default - update GART/VM fault handling 405 * 406 * @adev: amdgpu_device pointer 407 * @value: true redirects VM faults to the default page 408 */ 409 static void mmhub_v3_3_set_fault_enable_default(struct amdgpu_device *adev, 410 bool value) 411 { 412 u32 tmp; 413 414 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL); 415 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL, 416 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 417 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL, 418 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value); 419 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL, 420 PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value); 421 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL, 422 PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value); 423 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL, 424 TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT, 425 value); 426 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL, 427 NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value); 428 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL, 429 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 430 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL, 431 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value); 432 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL, 433 READ_PROTECTION_FAULT_ENABLE_DEFAULT, value); 434 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL, 435 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 436 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL, 437 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 438 if (!value) { 439 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL, 440 CRASH_ON_NO_RETRY_FAULT, 1); 441 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL, 442 CRASH_ON_RETRY_FAULT, 1); 443 } 444 WREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL, tmp); 445 } 446 447 static const struct amdgpu_vmhub_funcs mmhub_v3_3_vmhub_funcs = { 448 .print_l2_protection_fault_status = mmhub_v3_3_print_l2_protection_fault_status, 449 .get_invalidate_req = mmhub_v3_3_get_invalidate_req, 450 }; 451 452 static void mmhub_v3_3_init(struct amdgpu_device *adev) 453 { 454 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)]; 455 456 hub->ctx0_ptb_addr_lo32 = 457 SOC15_REG_OFFSET(MMHUB, 0, 458 regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32); 459 hub->ctx0_ptb_addr_hi32 = 460 SOC15_REG_OFFSET(MMHUB, 0, 461 regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32); 462 hub->vm_inv_eng0_sem = 463 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_SEM); 464 hub->vm_inv_eng0_req = 465 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_REQ); 466 hub->vm_inv_eng0_ack = 467 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_ACK); 468 hub->vm_context0_cntl = 469 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_CONTEXT0_CNTL); 470 hub->vm_l2_pro_fault_status = 471 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_STATUS); 472 hub->vm_l2_pro_fault_cntl = 473 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL); 474 475 hub->ctx_distance = regMMVM_CONTEXT1_CNTL - regMMVM_CONTEXT0_CNTL; 476 hub->ctx_addr_distance = regMMVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32 - 477 regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32; 478 hub->eng_distance = regMMVM_INVALIDATE_ENG1_REQ - 479 regMMVM_INVALIDATE_ENG0_REQ; 480 hub->eng_addr_distance = regMMVM_INVALIDATE_ENG1_ADDR_RANGE_LO32 - 481 regMMVM_INVALIDATE_ENG0_ADDR_RANGE_LO32; 482 483 hub->vm_cntx_cntl_vm_fault = MMVM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 484 MMVM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 485 MMVM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 486 MMVM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 487 MMVM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 488 MMVM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 489 MMVM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK; 490 491 hub->vmhub_funcs = &mmhub_v3_3_vmhub_funcs; 492 } 493 494 static u64 mmhub_v3_3_get_fb_location(struct amdgpu_device *adev) 495 { 496 u64 base; 497 498 base = RREG32_SOC15(MMHUB, 0, regMMMC_VM_FB_LOCATION_BASE); 499 base &= MMMC_VM_FB_LOCATION_BASE__FB_BASE_MASK; 500 base <<= 24; 501 502 return base; 503 } 504 505 static u64 mmhub_v3_3_get_mc_fb_offset(struct amdgpu_device *adev) 506 { 507 u64 offset; 508 509 offset = RREG32_SOC15(MMHUB, 0, regMMMC_VM_FB_OFFSET); 510 offset &= MMMC_VM_FB_OFFSET__FB_OFFSET_MASK; 511 offset <<= 24; 512 513 return offset; 514 } 515 516 static void mmhub_v3_3_update_medium_grain_clock_gating(struct amdgpu_device *adev, 517 bool enable) 518 { 519 uint32_t def, data; 520 521 def = data = RREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG); 522 523 if (enable) 524 data |= MM_ATC_L2_MISC_CG__ENABLE_MASK; 525 else 526 data &= ~MM_ATC_L2_MISC_CG__ENABLE_MASK; 527 528 if (def != data) 529 WREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG, data); 530 } 531 532 static void mmhub_v3_3_update_medium_grain_light_sleep(struct amdgpu_device *adev, 533 bool enable) 534 { 535 uint32_t def, data; 536 537 def = data = RREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG); 538 539 if (enable) 540 data |= MM_ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK; 541 else 542 data &= ~MM_ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK; 543 544 if (def != data) 545 WREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG, data); 546 } 547 548 static int mmhub_v3_3_set_clockgating(struct amdgpu_device *adev, 549 enum amd_clockgating_state state) 550 { 551 if (amdgpu_sriov_vf(adev)) 552 return 0; 553 554 mmhub_v3_3_update_medium_grain_clock_gating(adev, 555 state == AMD_CG_STATE_GATE); 556 mmhub_v3_3_update_medium_grain_light_sleep(adev, 557 state == AMD_CG_STATE_GATE); 558 return 0; 559 } 560 561 static void mmhub_v3_3_get_clockgating(struct amdgpu_device *adev, u64 *flags) 562 { 563 int data; 564 565 if (amdgpu_sriov_vf(adev)) 566 *flags = 0; 567 568 data = RREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG); 569 570 /* AMD_CG_SUPPORT_MC_MGCG */ 571 if (data & MM_ATC_L2_MISC_CG__ENABLE_MASK) 572 *flags |= AMD_CG_SUPPORT_MC_MGCG; 573 574 /* AMD_CG_SUPPORT_MC_LS */ 575 if (data & MM_ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK) 576 *flags |= AMD_CG_SUPPORT_MC_LS; 577 } 578 579 const struct amdgpu_mmhub_funcs mmhub_v3_3_funcs = { 580 .init = mmhub_v3_3_init, 581 .get_fb_location = mmhub_v3_3_get_fb_location, 582 .get_mc_fb_offset = mmhub_v3_3_get_mc_fb_offset, 583 .gart_enable = mmhub_v3_3_gart_enable, 584 .set_fault_enable_default = mmhub_v3_3_set_fault_enable_default, 585 .gart_disable = mmhub_v3_3_gart_disable, 586 .set_clockgating = mmhub_v3_3_set_clockgating, 587 .get_clockgating = mmhub_v3_3_get_clockgating, 588 .setup_vm_pt_regs = mmhub_v3_3_setup_vm_pt_regs, 589 }; 590