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 "gfxhub_v1_0.h" 25 26 #include "gc/gc_9_0_offset.h" 27 #include "gc/gc_9_0_sh_mask.h" 28 #include "gc/gc_9_0_default.h" 29 #include "vega10_enum.h" 30 31 #include "soc15_common.h" 32 33 u64 gfxhub_v1_0_get_mc_fb_offset(struct amdgpu_device *adev) 34 { 35 return (u64)RREG32_SOC15(GC, 0, mmMC_VM_FB_OFFSET) << 24; 36 } 37 38 void gfxhub_v1_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid, 39 uint64_t page_table_base) 40 { 41 /* two registers distance between mmVM_CONTEXT0_* to mmVM_CONTEXT1_* */ 42 int offset = mmVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32 43 - mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32; 44 45 WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32, 46 offset * vmid, lower_32_bits(page_table_base)); 47 48 WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32, 49 offset * vmid, upper_32_bits(page_table_base)); 50 } 51 52 static void gfxhub_v1_0_init_gart_aperture_regs(struct amdgpu_device *adev) 53 { 54 uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo); 55 56 gfxhub_v1_0_setup_vm_pt_regs(adev, 0, pt_base); 57 58 WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32, 59 (u32)(adev->gmc.gart_start >> 12)); 60 WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32, 61 (u32)(adev->gmc.gart_start >> 44)); 62 63 WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32, 64 (u32)(adev->gmc.gart_end >> 12)); 65 WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32, 66 (u32)(adev->gmc.gart_end >> 44)); 67 } 68 69 static void gfxhub_v1_0_init_system_aperture_regs(struct amdgpu_device *adev) 70 { 71 uint64_t value; 72 73 /* Program the AGP BAR */ 74 WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_BASE, 0); 75 WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_BOT, adev->gmc.agp_start >> 24); 76 WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_TOP, adev->gmc.agp_end >> 24); 77 78 if (!amdgpu_sriov_vf(adev) || adev->asic_type <= CHIP_VEGA10) { 79 /* Program the system aperture low logical page number. */ 80 WREG32_SOC15_RLC(GC, 0, mmMC_VM_SYSTEM_APERTURE_LOW_ADDR, 81 min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18); 82 83 if (adev->apu_flags & AMD_APU_IS_RAVEN2) 84 /* 85 * Raven2 has a HW issue that it is unable to use the 86 * vram which is out of MC_VM_SYSTEM_APERTURE_HIGH_ADDR. 87 * So here is the workaround that increase system 88 * aperture high address (add 1) to get rid of the VM 89 * fault and hardware hang. 90 */ 91 WREG32_SOC15_RLC(GC, 0, 92 mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 93 max((adev->gmc.fb_end >> 18) + 0x1, 94 adev->gmc.agp_end >> 18)); 95 else 96 WREG32_SOC15_RLC( 97 GC, 0, mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 98 max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18); 99 100 /* Set default page address. */ 101 value = adev->vram_scratch.gpu_addr - adev->gmc.vram_start + 102 adev->vm_manager.vram_base_offset; 103 WREG32_SOC15(GC, 0, mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB, 104 (u32)(value >> 12)); 105 WREG32_SOC15(GC, 0, mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB, 106 (u32)(value >> 44)); 107 108 /* Program "protection fault". */ 109 WREG32_SOC15(GC, 0, mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32, 110 (u32)(adev->dummy_page_addr >> 12)); 111 WREG32_SOC15(GC, 0, mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32, 112 (u32)((u64)adev->dummy_page_addr >> 44)); 113 114 WREG32_FIELD15(GC, 0, VM_L2_PROTECTION_FAULT_CNTL2, 115 ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1); 116 } 117 } 118 119 static void gfxhub_v1_0_init_tlb_regs(struct amdgpu_device *adev) 120 { 121 uint32_t tmp; 122 123 /* Setup TLB control */ 124 tmp = RREG32_SOC15(GC, 0, mmMC_VM_MX_L1_TLB_CNTL); 125 126 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1); 127 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3); 128 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, 129 ENABLE_ADVANCED_DRIVER_MODEL, 1); 130 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, 131 SYSTEM_APERTURE_UNMAPPED_ACCESS, 0); 132 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0); 133 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, 134 MTYPE, MTYPE_UC);/* XXX for emulation. */ 135 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ATC_EN, 1); 136 137 WREG32_SOC15_RLC(GC, 0, mmMC_VM_MX_L1_TLB_CNTL, tmp); 138 } 139 140 static void gfxhub_v1_0_init_cache_regs(struct amdgpu_device *adev) 141 { 142 uint32_t tmp; 143 144 /* Setup L2 cache */ 145 tmp = RREG32_SOC15(GC, 0, mmVM_L2_CNTL); 146 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1); 147 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1); 148 /* XXX for emulation, Refer to closed source code.*/ 149 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, L2_PDE0_CACHE_TAG_GENERATION_MODE, 150 0); 151 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 0); 152 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1); 153 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0); 154 WREG32_SOC15_RLC(GC, 0, mmVM_L2_CNTL, tmp); 155 156 tmp = RREG32_SOC15(GC, 0, mmVM_L2_CNTL2); 157 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1); 158 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1); 159 WREG32_SOC15_RLC(GC, 0, mmVM_L2_CNTL2, tmp); 160 161 tmp = mmVM_L2_CNTL3_DEFAULT; 162 if (adev->gmc.translate_further) { 163 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 12); 164 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, 165 L2_CACHE_BIGK_FRAGMENT_SIZE, 9); 166 } else { 167 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 9); 168 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, 169 L2_CACHE_BIGK_FRAGMENT_SIZE, 6); 170 } 171 WREG32_SOC15_RLC(GC, 0, mmVM_L2_CNTL3, tmp); 172 173 tmp = mmVM_L2_CNTL4_DEFAULT; 174 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0); 175 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0); 176 WREG32_SOC15_RLC(GC, 0, mmVM_L2_CNTL4, tmp); 177 } 178 179 static void gfxhub_v1_0_enable_system_domain(struct amdgpu_device *adev) 180 { 181 uint32_t tmp; 182 183 tmp = RREG32_SOC15(GC, 0, mmVM_CONTEXT0_CNTL); 184 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1); 185 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0); 186 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, 187 RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0); 188 WREG32_SOC15(GC, 0, mmVM_CONTEXT0_CNTL, tmp); 189 } 190 191 static void gfxhub_v1_0_disable_identity_aperture(struct amdgpu_device *adev) 192 { 193 WREG32_SOC15(GC, 0, mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32, 194 0XFFFFFFFF); 195 WREG32_SOC15(GC, 0, mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32, 196 0x0000000F); 197 198 WREG32_SOC15(GC, 0, mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32, 199 0); 200 WREG32_SOC15(GC, 0, mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32, 201 0); 202 203 WREG32_SOC15(GC, 0, mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32, 0); 204 WREG32_SOC15(GC, 0, mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32, 0); 205 206 } 207 208 static void gfxhub_v1_0_setup_vmid_config(struct amdgpu_device *adev) 209 { 210 unsigned num_level, block_size; 211 uint32_t tmp; 212 int i; 213 214 num_level = adev->vm_manager.num_level; 215 block_size = adev->vm_manager.block_size; 216 if (adev->gmc.translate_further) 217 num_level -= 1; 218 else 219 block_size -= 9; 220 221 for (i = 0; i <= 14; i++) { 222 tmp = RREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT1_CNTL, i); 223 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1); 224 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 225 num_level); 226 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 227 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 228 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 229 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 230 1); 231 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 232 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 233 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 234 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 235 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 236 READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 237 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 238 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 239 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 240 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 241 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 242 PAGE_TABLE_BLOCK_SIZE, 243 block_size); 244 /* Send no-retry XNACK on fault to suppress VM fault storm. */ 245 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 246 RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 247 !amdgpu_noretry); 248 WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT1_CNTL, i, tmp); 249 WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32, i*2, 0); 250 WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32, i*2, 0); 251 WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32, i*2, 252 lower_32_bits(adev->vm_manager.max_pfn - 1)); 253 WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32, i*2, 254 upper_32_bits(adev->vm_manager.max_pfn - 1)); 255 } 256 } 257 258 static void gfxhub_v1_0_program_invalidation(struct amdgpu_device *adev) 259 { 260 unsigned i; 261 262 for (i = 0 ; i < 18; ++i) { 263 WREG32_SOC15_OFFSET(GC, 0, mmVM_INVALIDATE_ENG0_ADDR_RANGE_LO32, 264 2 * i, 0xffffffff); 265 WREG32_SOC15_OFFSET(GC, 0, mmVM_INVALIDATE_ENG0_ADDR_RANGE_HI32, 266 2 * i, 0x1f); 267 } 268 } 269 270 int gfxhub_v1_0_gart_enable(struct amdgpu_device *adev) 271 { 272 if (amdgpu_sriov_vf(adev) && adev->asic_type != CHIP_ARCTURUS) { 273 /* 274 * MC_VM_FB_LOCATION_BASE/TOP is NULL for VF, becuase they are 275 * VF copy registers so vbios post doesn't program them, for 276 * SRIOV driver need to program them 277 */ 278 WREG32_SOC15_RLC(GC, 0, mmMC_VM_FB_LOCATION_BASE, 279 adev->gmc.vram_start >> 24); 280 WREG32_SOC15_RLC(GC, 0, mmMC_VM_FB_LOCATION_TOP, 281 adev->gmc.vram_end >> 24); 282 } 283 284 /* GART Enable. */ 285 gfxhub_v1_0_init_gart_aperture_regs(adev); 286 gfxhub_v1_0_init_system_aperture_regs(adev); 287 gfxhub_v1_0_init_tlb_regs(adev); 288 if (!amdgpu_sriov_vf(adev)) 289 gfxhub_v1_0_init_cache_regs(adev); 290 291 gfxhub_v1_0_enable_system_domain(adev); 292 if (!amdgpu_sriov_vf(adev)) 293 gfxhub_v1_0_disable_identity_aperture(adev); 294 gfxhub_v1_0_setup_vmid_config(adev); 295 gfxhub_v1_0_program_invalidation(adev); 296 297 return 0; 298 } 299 300 void gfxhub_v1_0_gart_disable(struct amdgpu_device *adev) 301 { 302 u32 tmp; 303 u32 i; 304 305 /* Disable all tables */ 306 for (i = 0; i < 16; i++) 307 WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT0_CNTL, i, 0); 308 309 /* Setup TLB control */ 310 tmp = RREG32_SOC15(GC, 0, mmMC_VM_MX_L1_TLB_CNTL); 311 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0); 312 tmp = REG_SET_FIELD(tmp, 313 MC_VM_MX_L1_TLB_CNTL, 314 ENABLE_ADVANCED_DRIVER_MODEL, 315 0); 316 WREG32_SOC15_RLC(GC, 0, mmMC_VM_MX_L1_TLB_CNTL, tmp); 317 318 /* Setup L2 cache */ 319 WREG32_FIELD15(GC, 0, VM_L2_CNTL, ENABLE_L2_CACHE, 0); 320 WREG32_SOC15(GC, 0, mmVM_L2_CNTL3, 0); 321 } 322 323 /** 324 * gfxhub_v1_0_set_fault_enable_default - update GART/VM fault handling 325 * 326 * @adev: amdgpu_device pointer 327 * @value: true redirects VM faults to the default page 328 */ 329 void gfxhub_v1_0_set_fault_enable_default(struct amdgpu_device *adev, 330 bool value) 331 { 332 u32 tmp; 333 tmp = RREG32_SOC15(GC, 0, mmVM_L2_PROTECTION_FAULT_CNTL); 334 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 335 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 336 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 337 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value); 338 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 339 PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value); 340 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 341 PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value); 342 tmp = REG_SET_FIELD(tmp, 343 VM_L2_PROTECTION_FAULT_CNTL, 344 TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT, 345 value); 346 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 347 NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value); 348 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 349 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 350 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 351 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value); 352 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 353 READ_PROTECTION_FAULT_ENABLE_DEFAULT, value); 354 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 355 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 356 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 357 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 358 if (!value) { 359 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 360 CRASH_ON_NO_RETRY_FAULT, 1); 361 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 362 CRASH_ON_RETRY_FAULT, 1); 363 } 364 WREG32_SOC15(GC, 0, mmVM_L2_PROTECTION_FAULT_CNTL, tmp); 365 } 366 367 void gfxhub_v1_0_init(struct amdgpu_device *adev) 368 { 369 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0]; 370 371 hub->ctx0_ptb_addr_lo32 = 372 SOC15_REG_OFFSET(GC, 0, 373 mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32); 374 hub->ctx0_ptb_addr_hi32 = 375 SOC15_REG_OFFSET(GC, 0, 376 mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32); 377 hub->vm_inv_eng0_sem = 378 SOC15_REG_OFFSET(GC, 0, mmVM_INVALIDATE_ENG0_SEM); 379 hub->vm_inv_eng0_req = 380 SOC15_REG_OFFSET(GC, 0, mmVM_INVALIDATE_ENG0_REQ); 381 hub->vm_inv_eng0_ack = 382 SOC15_REG_OFFSET(GC, 0, mmVM_INVALIDATE_ENG0_ACK); 383 hub->vm_context0_cntl = 384 SOC15_REG_OFFSET(GC, 0, mmVM_CONTEXT0_CNTL); 385 hub->vm_l2_pro_fault_status = 386 SOC15_REG_OFFSET(GC, 0, mmVM_L2_PROTECTION_FAULT_STATUS); 387 hub->vm_l2_pro_fault_cntl = 388 SOC15_REG_OFFSET(GC, 0, mmVM_L2_PROTECTION_FAULT_CNTL); 389 } 390