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, 0); 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_0]; 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 } 355