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 void gfxhub_v2_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid, 50 uint64_t page_table_base) 51 { 52 /* two registers distance between mmGCVM_CONTEXT0_* to mmGCVM_CONTEXT1_* */ 53 int offset = mmGCVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32 54 - mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32; 55 56 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32, 57 offset * vmid, lower_32_bits(page_table_base)); 58 59 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32, 60 offset * vmid, upper_32_bits(page_table_base)); 61 } 62 63 static void gfxhub_v2_0_init_gart_aperture_regs(struct amdgpu_device *adev) 64 { 65 uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo); 66 67 gfxhub_v2_0_setup_vm_pt_regs(adev, 0, pt_base); 68 69 WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32, 70 (u32)(adev->gmc.gart_start >> 12)); 71 WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32, 72 (u32)(adev->gmc.gart_start >> 44)); 73 74 WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32, 75 (u32)(adev->gmc.gart_end >> 12)); 76 WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32, 77 (u32)(adev->gmc.gart_end >> 44)); 78 } 79 80 static void gfxhub_v2_0_init_system_aperture_regs(struct amdgpu_device *adev) 81 { 82 uint64_t value; 83 84 if (!amdgpu_sriov_vf(adev)) { 85 /* 86 * the new L1 policy will block SRIOV guest from writing 87 * these regs, and they will be programed at host. 88 * so skip programing these regs. 89 */ 90 /* Disable AGP. */ 91 WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BASE, 0); 92 WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_TOP, 0); 93 WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BOT, 0x00FFFFFF); 94 95 /* Program the system aperture low logical page number. */ 96 WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_LOW_ADDR, 97 adev->gmc.vram_start >> 18); 98 WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 99 adev->gmc.vram_end >> 18); 100 101 /* Set default page address. */ 102 value = adev->vram_scratch.gpu_addr - adev->gmc.vram_start 103 + adev->vm_manager.vram_base_offset; 104 WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB, 105 (u32)(value >> 12)); 106 WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB, 107 (u32)(value >> 44)); 108 } 109 110 /* Program "protection fault". */ 111 WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32, 112 (u32)(adev->dummy_page_addr >> 12)); 113 WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32, 114 (u32)((u64)adev->dummy_page_addr >> 44)); 115 116 WREG32_FIELD15(GC, 0, GCVM_L2_PROTECTION_FAULT_CNTL2, 117 ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1); 118 } 119 120 121 static void gfxhub_v2_0_init_tlb_regs(struct amdgpu_device *adev) 122 { 123 uint32_t tmp; 124 125 /* Setup TLB control */ 126 tmp = RREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL); 127 128 tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1); 129 tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3); 130 tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, 131 ENABLE_ADVANCED_DRIVER_MODEL, 1); 132 tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, 133 SYSTEM_APERTURE_UNMAPPED_ACCESS, 0); 134 tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0); 135 tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, 136 MTYPE, MTYPE_UC); /* UC, uncached */ 137 138 WREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL, tmp); 139 } 140 141 static void gfxhub_v2_0_init_cache_regs(struct amdgpu_device *adev) 142 { 143 uint32_t tmp; 144 145 /* These regs are not accessible for VF, PF will program these in SRIOV */ 146 if (amdgpu_sriov_vf(adev)) 147 return; 148 149 /* Setup L2 cache */ 150 tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_CNTL); 151 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_CACHE, 1); 152 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 0); 153 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, 154 ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1); 155 /* XXX for emulation, Refer to closed source code.*/ 156 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, 157 L2_PDE0_CACHE_TAG_GENERATION_MODE, 0); 158 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 0); 159 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1); 160 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0); 161 WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL, tmp); 162 163 tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_CNTL2); 164 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1); 165 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL2, INVALIDATE_L2_CACHE, 1); 166 WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL2, tmp); 167 168 tmp = mmGCVM_L2_CNTL3_DEFAULT; 169 if (adev->gmc.translate_further) { 170 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3, BANK_SELECT, 12); 171 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3, 172 L2_CACHE_BIGK_FRAGMENT_SIZE, 9); 173 } else { 174 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3, BANK_SELECT, 9); 175 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3, 176 L2_CACHE_BIGK_FRAGMENT_SIZE, 6); 177 } 178 WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, tmp); 179 180 tmp = mmGCVM_L2_CNTL4_DEFAULT; 181 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0); 182 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0); 183 WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL4, tmp); 184 185 tmp = mmGCVM_L2_CNTL5_DEFAULT; 186 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL5, L2_CACHE_SMALLK_FRAGMENT_SIZE, 0); 187 WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL5, tmp); 188 } 189 190 static void gfxhub_v2_0_enable_system_domain(struct amdgpu_device *adev) 191 { 192 uint32_t tmp; 193 194 tmp = RREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_CNTL); 195 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1); 196 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0); 197 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, 198 RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0); 199 WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_CNTL, tmp); 200 } 201 202 static void gfxhub_v2_0_disable_identity_aperture(struct amdgpu_device *adev) 203 { 204 WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32, 205 0xFFFFFFFF); 206 WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32, 207 0x0000000F); 208 209 WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32, 210 0); 211 WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32, 212 0); 213 214 WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32, 0); 215 WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32, 0); 216 217 } 218 219 static void gfxhub_v2_0_setup_vmid_config(struct amdgpu_device *adev) 220 { 221 int i; 222 uint32_t tmp; 223 224 for (i = 0; i <= 14; i++) { 225 tmp = RREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_CNTL, i); 226 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1); 227 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 228 adev->vm_manager.num_level); 229 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, 230 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 231 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, 232 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 233 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, 234 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 235 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, 236 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 237 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, 238 READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 239 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, 240 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 241 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, 242 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 243 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, 244 PAGE_TABLE_BLOCK_SIZE, 245 adev->vm_manager.block_size - 9); 246 /* Send no-retry XNACK on fault to suppress VM fault storm. */ 247 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, 248 RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 249 !amdgpu_noretry); 250 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_CNTL, i, tmp); 251 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32, i*2, 0); 252 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32, i*2, 0); 253 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32, i*2, 254 lower_32_bits(adev->vm_manager.max_pfn - 1)); 255 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32, i*2, 256 upper_32_bits(adev->vm_manager.max_pfn - 1)); 257 } 258 } 259 260 static void gfxhub_v2_0_program_invalidation(struct amdgpu_device *adev) 261 { 262 unsigned i; 263 264 for (i = 0 ; i < 18; ++i) { 265 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ADDR_RANGE_LO32, 266 2 * i, 0xffffffff); 267 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ADDR_RANGE_HI32, 268 2 * i, 0x1f); 269 } 270 } 271 272 int gfxhub_v2_0_gart_enable(struct amdgpu_device *adev) 273 { 274 /* GART Enable. */ 275 gfxhub_v2_0_init_gart_aperture_regs(adev); 276 gfxhub_v2_0_init_system_aperture_regs(adev); 277 gfxhub_v2_0_init_tlb_regs(adev); 278 gfxhub_v2_0_init_cache_regs(adev); 279 280 gfxhub_v2_0_enable_system_domain(adev); 281 gfxhub_v2_0_disable_identity_aperture(adev); 282 gfxhub_v2_0_setup_vmid_config(adev); 283 gfxhub_v2_0_program_invalidation(adev); 284 285 return 0; 286 } 287 288 void gfxhub_v2_0_gart_disable(struct amdgpu_device *adev) 289 { 290 u32 tmp; 291 u32 i; 292 293 /* Disable all tables */ 294 for (i = 0; i < 16; i++) 295 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_CNTL, i, 0); 296 297 /* Setup TLB control */ 298 tmp = RREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL); 299 tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0); 300 tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, 301 ENABLE_ADVANCED_DRIVER_MODEL, 0); 302 WREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL, tmp); 303 304 if (!amdgpu_sriov_vf(adev)) { 305 /* Setup L2 cache */ 306 WREG32_FIELD15(GC, 0, GCVM_L2_CNTL, ENABLE_L2_CACHE, 0); 307 WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, 0); 308 } 309 } 310 311 /** 312 * gfxhub_v2_0_set_fault_enable_default - update GART/VM fault handling 313 * 314 * @adev: amdgpu_device pointer 315 * @value: true redirects VM faults to the default page 316 */ 317 void gfxhub_v2_0_set_fault_enable_default(struct amdgpu_device *adev, 318 bool value) 319 { 320 u32 tmp; 321 tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL); 322 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL, 323 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 324 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL, 325 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value); 326 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL, 327 PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value); 328 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL, 329 PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value); 330 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL, 331 TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT, 332 value); 333 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL, 334 NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value); 335 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL, 336 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 337 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL, 338 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value); 339 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL, 340 READ_PROTECTION_FAULT_ENABLE_DEFAULT, value); 341 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL, 342 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 343 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL, 344 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 345 if (!value) { 346 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL, 347 CRASH_ON_NO_RETRY_FAULT, 1); 348 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL, 349 CRASH_ON_RETRY_FAULT, 1); 350 } 351 WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL, tmp); 352 } 353 354 void gfxhub_v2_0_init(struct amdgpu_device *adev) 355 { 356 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0]; 357 358 hub->ctx0_ptb_addr_lo32 = 359 SOC15_REG_OFFSET(GC, 0, 360 mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32); 361 hub->ctx0_ptb_addr_hi32 = 362 SOC15_REG_OFFSET(GC, 0, 363 mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32); 364 hub->vm_inv_eng0_sem = 365 SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_SEM); 366 hub->vm_inv_eng0_req = 367 SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_REQ); 368 hub->vm_inv_eng0_ack = 369 SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ACK); 370 hub->vm_context0_cntl = 371 SOC15_REG_OFFSET(GC, 0, mmGCVM_CONTEXT0_CNTL); 372 hub->vm_l2_pro_fault_status = 373 SOC15_REG_OFFSET(GC, 0, mmGCVM_L2_PROTECTION_FAULT_STATUS); 374 hub->vm_l2_pro_fault_cntl = 375 SOC15_REG_OFFSET(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL); 376 } 377