1/* $NetBSD: amdgpu_gfxhub_v1_0.c,v 1.2 2021/12/18 23:44:58 riastradh Exp $ */ 2 3/* 4 * Copyright 2016 Advanced Micro Devices, Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 */ 25#include <sys/cdefs.h> 26__KERNEL_RCSID(0, "$NetBSD: amdgpu_gfxhub_v1_0.c,v 1.2 2021/12/18 23:44:58 riastradh Exp $"); 27 28#include "amdgpu.h" 29#include "gfxhub_v1_0.h" 30 31#include "gc/gc_9_0_offset.h" 32#include "gc/gc_9_0_sh_mask.h" 33#include "gc/gc_9_0_default.h" 34#include "vega10_enum.h" 35 36#include "soc15_common.h" 37 38u64 gfxhub_v1_0_get_mc_fb_offset(struct amdgpu_device *adev) 39{ 40 return (u64)RREG32_SOC15(GC, 0, mmMC_VM_FB_OFFSET) << 24; 41} 42 43void gfxhub_v1_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid, 44 uint64_t page_table_base) 45{ 46 /* two registers distance between mmVM_CONTEXT0_* to mmVM_CONTEXT1_* */ 47 int offset = mmVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32 48 - mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32; 49 50 WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32, 51 offset * vmid, lower_32_bits(page_table_base)); 52 53 WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32, 54 offset * vmid, upper_32_bits(page_table_base)); 55} 56 57static void gfxhub_v1_0_init_gart_aperture_regs(struct amdgpu_device *adev) 58{ 59 uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo); 60 61 gfxhub_v1_0_setup_vm_pt_regs(adev, 0, pt_base); 62 63 WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32, 64 (u32)(adev->gmc.gart_start >> 12)); 65 WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32, 66 (u32)(adev->gmc.gart_start >> 44)); 67 68 WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32, 69 (u32)(adev->gmc.gart_end >> 12)); 70 WREG32_SOC15(GC, 0, mmVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32, 71 (u32)(adev->gmc.gart_end >> 44)); 72} 73 74static void gfxhub_v1_0_init_system_aperture_regs(struct amdgpu_device *adev) 75{ 76 uint64_t value; 77 78 /* Program the AGP BAR */ 79 WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_BASE, 0); 80 WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_BOT, adev->gmc.agp_start >> 24); 81 WREG32_SOC15_RLC(GC, 0, mmMC_VM_AGP_TOP, adev->gmc.agp_end >> 24); 82 83 if (!amdgpu_sriov_vf(adev) || adev->asic_type <= CHIP_VEGA10) { 84 /* Program the system aperture low logical page number. */ 85 WREG32_SOC15_RLC(GC, 0, mmMC_VM_SYSTEM_APERTURE_LOW_ADDR, 86 min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18); 87 88 if (adev->asic_type == CHIP_RAVEN && adev->rev_id >= 0x8) 89 /* 90 * Raven2 has a HW issue that it is unable to use the 91 * vram which is out of MC_VM_SYSTEM_APERTURE_HIGH_ADDR. 92 * So here is the workaround that increase system 93 * aperture high address (add 1) to get rid of the VM 94 * fault and hardware hang. 95 */ 96 WREG32_SOC15_RLC(GC, 0, 97 mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 98 max((adev->gmc.fb_end >> 18) + 0x1, 99 adev->gmc.agp_end >> 18)); 100 else 101 WREG32_SOC15_RLC( 102 GC, 0, mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 103 max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18); 104 105 /* Set default page address. */ 106 value = adev->vram_scratch.gpu_addr - adev->gmc.vram_start + 107 adev->vm_manager.vram_base_offset; 108 WREG32_SOC15(GC, 0, mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB, 109 (u32)(value >> 12)); 110 WREG32_SOC15(GC, 0, mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB, 111 (u32)(value >> 44)); 112 113 /* Program "protection fault". */ 114 WREG32_SOC15(GC, 0, mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32, 115 (u32)(adev->dummy_page_addr >> 12)); 116 WREG32_SOC15(GC, 0, mmVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32, 117 (u32)((u64)adev->dummy_page_addr >> 44)); 118 119 WREG32_FIELD15(GC, 0, VM_L2_PROTECTION_FAULT_CNTL2, 120 ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1); 121 } 122} 123 124static void gfxhub_v1_0_init_tlb_regs(struct amdgpu_device *adev) 125{ 126 uint32_t tmp; 127 128 /* Setup TLB control */ 129 tmp = RREG32_SOC15(GC, 0, mmMC_VM_MX_L1_TLB_CNTL); 130 131 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1); 132 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3); 133 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, 134 ENABLE_ADVANCED_DRIVER_MODEL, 1); 135 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, 136 SYSTEM_APERTURE_UNMAPPED_ACCESS, 0); 137 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0); 138 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, 139 MTYPE, MTYPE_UC);/* XXX for emulation. */ 140 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ATC_EN, 1); 141 142 WREG32_SOC15_RLC(GC, 0, mmMC_VM_MX_L1_TLB_CNTL, tmp); 143} 144 145static void gfxhub_v1_0_init_cache_regs(struct amdgpu_device *adev) 146{ 147 uint32_t tmp; 148 149 /* Setup L2 cache */ 150 tmp = RREG32_SOC15(GC, 0, mmVM_L2_CNTL); 151 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1); 152 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1); 153 /* XXX for emulation, Refer to closed source code.*/ 154 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, L2_PDE0_CACHE_TAG_GENERATION_MODE, 155 0); 156 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 0); 157 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1); 158 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0); 159 WREG32_SOC15_RLC(GC, 0, mmVM_L2_CNTL, tmp); 160 161 tmp = RREG32_SOC15(GC, 0, mmVM_L2_CNTL2); 162 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1); 163 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1); 164 WREG32_SOC15_RLC(GC, 0, mmVM_L2_CNTL2, tmp); 165 166 tmp = mmVM_L2_CNTL3_DEFAULT; 167 if (adev->gmc.translate_further) { 168 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 12); 169 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, 170 L2_CACHE_BIGK_FRAGMENT_SIZE, 9); 171 } else { 172 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 9); 173 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, 174 L2_CACHE_BIGK_FRAGMENT_SIZE, 6); 175 } 176 WREG32_SOC15_RLC(GC, 0, mmVM_L2_CNTL3, tmp); 177 178 tmp = mmVM_L2_CNTL4_DEFAULT; 179 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0); 180 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0); 181 WREG32_SOC15_RLC(GC, 0, mmVM_L2_CNTL4, tmp); 182} 183 184static void gfxhub_v1_0_enable_system_domain(struct amdgpu_device *adev) 185{ 186 uint32_t tmp; 187 188 tmp = RREG32_SOC15(GC, 0, mmVM_CONTEXT0_CNTL); 189 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1); 190 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0); 191 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, 192 RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0); 193 WREG32_SOC15(GC, 0, mmVM_CONTEXT0_CNTL, tmp); 194} 195 196static void gfxhub_v1_0_disable_identity_aperture(struct amdgpu_device *adev) 197{ 198 WREG32_SOC15(GC, 0, mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32, 199 0XFFFFFFFF); 200 WREG32_SOC15(GC, 0, mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32, 201 0x0000000F); 202 203 WREG32_SOC15(GC, 0, mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32, 204 0); 205 WREG32_SOC15(GC, 0, mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32, 206 0); 207 208 WREG32_SOC15(GC, 0, mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32, 0); 209 WREG32_SOC15(GC, 0, mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32, 0); 210 211} 212 213static void gfxhub_v1_0_setup_vmid_config(struct amdgpu_device *adev) 214{ 215 unsigned num_level, block_size; 216 uint32_t tmp; 217 int i; 218 219 num_level = adev->vm_manager.num_level; 220 block_size = adev->vm_manager.block_size; 221 if (adev->gmc.translate_further) 222 num_level -= 1; 223 else 224 block_size -= 9; 225 226 for (i = 0; i <= 14; i++) { 227 tmp = RREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT1_CNTL, i); 228 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1); 229 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 230 num_level); 231 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 232 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 233 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 234 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 235 1); 236 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 237 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 238 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 239 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 240 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 241 READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 242 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 243 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 244 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 245 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 246 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 247 PAGE_TABLE_BLOCK_SIZE, 248 block_size); 249 /* Send no-retry XNACK on fault to suppress VM fault storm. */ 250 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 251 RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 252 !amdgpu_noretry); 253 WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT1_CNTL, i, tmp); 254 WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32, i*2, 0); 255 WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32, i*2, 0); 256 WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32, i*2, 257 lower_32_bits(adev->vm_manager.max_pfn - 1)); 258 WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32, i*2, 259 upper_32_bits(adev->vm_manager.max_pfn - 1)); 260 } 261} 262 263static void gfxhub_v1_0_program_invalidation(struct amdgpu_device *adev) 264{ 265 unsigned i; 266 267 for (i = 0 ; i < 18; ++i) { 268 WREG32_SOC15_OFFSET(GC, 0, mmVM_INVALIDATE_ENG0_ADDR_RANGE_LO32, 269 2 * i, 0xffffffff); 270 WREG32_SOC15_OFFSET(GC, 0, mmVM_INVALIDATE_ENG0_ADDR_RANGE_HI32, 271 2 * i, 0x1f); 272 } 273} 274 275int gfxhub_v1_0_gart_enable(struct amdgpu_device *adev) 276{ 277 if (amdgpu_sriov_vf(adev) && adev->asic_type != CHIP_ARCTURUS) { 278 /* 279 * MC_VM_FB_LOCATION_BASE/TOP is NULL for VF, becuase they are 280 * VF copy registers so vbios post doesn't program them, for 281 * SRIOV driver need to program them 282 */ 283 WREG32_SOC15_RLC(GC, 0, mmMC_VM_FB_LOCATION_BASE, 284 adev->gmc.vram_start >> 24); 285 WREG32_SOC15_RLC(GC, 0, mmMC_VM_FB_LOCATION_TOP, 286 adev->gmc.vram_end >> 24); 287 } 288 289 /* GART Enable. */ 290 gfxhub_v1_0_init_gart_aperture_regs(adev); 291 gfxhub_v1_0_init_system_aperture_regs(adev); 292 gfxhub_v1_0_init_tlb_regs(adev); 293 if (!amdgpu_sriov_vf(adev)) 294 gfxhub_v1_0_init_cache_regs(adev); 295 296 gfxhub_v1_0_enable_system_domain(adev); 297 if (!amdgpu_sriov_vf(adev)) 298 gfxhub_v1_0_disable_identity_aperture(adev); 299 gfxhub_v1_0_setup_vmid_config(adev); 300 gfxhub_v1_0_program_invalidation(adev); 301 302 return 0; 303} 304 305void gfxhub_v1_0_gart_disable(struct amdgpu_device *adev) 306{ 307 u32 tmp; 308 u32 i; 309 310 /* Disable all tables */ 311 for (i = 0; i < 16; i++) 312 WREG32_SOC15_OFFSET(GC, 0, mmVM_CONTEXT0_CNTL, i, 0); 313 314 /* Setup TLB control */ 315 tmp = RREG32_SOC15(GC, 0, mmMC_VM_MX_L1_TLB_CNTL); 316 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0); 317 tmp = REG_SET_FIELD(tmp, 318 MC_VM_MX_L1_TLB_CNTL, 319 ENABLE_ADVANCED_DRIVER_MODEL, 320 0); 321 WREG32_SOC15_RLC(GC, 0, mmMC_VM_MX_L1_TLB_CNTL, tmp); 322 323 /* Setup L2 cache */ 324 WREG32_FIELD15(GC, 0, VM_L2_CNTL, ENABLE_L2_CACHE, 0); 325 WREG32_SOC15(GC, 0, mmVM_L2_CNTL3, 0); 326} 327 328/** 329 * gfxhub_v1_0_set_fault_enable_default - update GART/VM fault handling 330 * 331 * @adev: amdgpu_device pointer 332 * @value: true redirects VM faults to the default page 333 */ 334void gfxhub_v1_0_set_fault_enable_default(struct amdgpu_device *adev, 335 bool value) 336{ 337 u32 tmp; 338 tmp = RREG32_SOC15(GC, 0, mmVM_L2_PROTECTION_FAULT_CNTL); 339 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 340 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 341 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 342 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value); 343 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 344 PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value); 345 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 346 PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value); 347 tmp = REG_SET_FIELD(tmp, 348 VM_L2_PROTECTION_FAULT_CNTL, 349 TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT, 350 value); 351 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 352 NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value); 353 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 354 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 355 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 356 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value); 357 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 358 READ_PROTECTION_FAULT_ENABLE_DEFAULT, value); 359 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 360 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 361 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 362 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 363 if (!value) { 364 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 365 CRASH_ON_NO_RETRY_FAULT, 1); 366 tmp = REG_SET_FIELD(tmp, VM_L2_PROTECTION_FAULT_CNTL, 367 CRASH_ON_RETRY_FAULT, 1); 368 } 369 WREG32_SOC15(GC, 0, mmVM_L2_PROTECTION_FAULT_CNTL, tmp); 370} 371 372void gfxhub_v1_0_init(struct amdgpu_device *adev) 373{ 374 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0]; 375 376 hub->ctx0_ptb_addr_lo32 = 377 SOC15_REG_OFFSET(GC, 0, 378 mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32); 379 hub->ctx0_ptb_addr_hi32 = 380 SOC15_REG_OFFSET(GC, 0, 381 mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32); 382 hub->vm_inv_eng0_sem = 383 SOC15_REG_OFFSET(GC, 0, mmVM_INVALIDATE_ENG0_SEM); 384 hub->vm_inv_eng0_req = 385 SOC15_REG_OFFSET(GC, 0, mmVM_INVALIDATE_ENG0_REQ); 386 hub->vm_inv_eng0_ack = 387 SOC15_REG_OFFSET(GC, 0, mmVM_INVALIDATE_ENG0_ACK); 388 hub->vm_context0_cntl = 389 SOC15_REG_OFFSET(GC, 0, mmVM_CONTEXT0_CNTL); 390 hub->vm_l2_pro_fault_status = 391 SOC15_REG_OFFSET(GC, 0, mmVM_L2_PROTECTION_FAULT_STATUS); 392 hub->vm_l2_pro_fault_cntl = 393 SOC15_REG_OFFSET(GC, 0, mmVM_L2_PROTECTION_FAULT_CNTL); 394} 395