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 <linux/firmware.h> 24 #include <drm/drm_cache.h> 25 #include "amdgpu.h" 26 #include "gmc_v9_0.h" 27 #include "amdgpu_atomfirmware.h" 28 #include "amdgpu_gem.h" 29 30 #include "hdp/hdp_4_0_offset.h" 31 #include "hdp/hdp_4_0_sh_mask.h" 32 #include "gc/gc_9_0_sh_mask.h" 33 #include "dce/dce_12_0_offset.h" 34 #include "dce/dce_12_0_sh_mask.h" 35 #include "vega10_enum.h" 36 #include "mmhub/mmhub_1_0_offset.h" 37 #include "athub/athub_1_0_offset.h" 38 #include "oss/osssys_4_0_offset.h" 39 40 #include "soc15.h" 41 #include "soc15_common.h" 42 #include "umc/umc_6_0_sh_mask.h" 43 44 #include "gfxhub_v1_0.h" 45 #include "mmhub_v1_0.h" 46 #include "gfxhub_v1_1.h" 47 48 #include "ivsrcid/vmc/irqsrcs_vmc_1_0.h" 49 50 /* add these here since we already include dce12 headers and these are for DCN */ 51 #define mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION 0x055d 52 #define mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION_BASE_IDX 2 53 #define HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION__PRI_VIEWPORT_WIDTH__SHIFT 0x0 54 #define HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION__PRI_VIEWPORT_HEIGHT__SHIFT 0x10 55 #define HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION__PRI_VIEWPORT_WIDTH_MASK 0x00003FFFL 56 #define HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION__PRI_VIEWPORT_HEIGHT_MASK 0x3FFF0000L 57 58 /* XXX Move this macro to VEGA10 header file, which is like vid.h for VI.*/ 59 #define AMDGPU_NUM_OF_VMIDS 8 60 61 static const u32 golden_settings_vega10_hdp[] = 62 { 63 0xf64, 0x0fffffff, 0x00000000, 64 0xf65, 0x0fffffff, 0x00000000, 65 0xf66, 0x0fffffff, 0x00000000, 66 0xf67, 0x0fffffff, 0x00000000, 67 0xf68, 0x0fffffff, 0x00000000, 68 0xf6a, 0x0fffffff, 0x00000000, 69 0xf6b, 0x0fffffff, 0x00000000, 70 0xf6c, 0x0fffffff, 0x00000000, 71 0xf6d, 0x0fffffff, 0x00000000, 72 0xf6e, 0x0fffffff, 0x00000000, 73 }; 74 75 static const struct soc15_reg_golden golden_settings_mmhub_1_0_0[] = 76 { 77 SOC15_REG_GOLDEN_VALUE(MMHUB, 0, mmDAGB1_WRCLI2, 0x00000007, 0xfe5fe0fa), 78 SOC15_REG_GOLDEN_VALUE(MMHUB, 0, mmMMEA1_DRAM_WR_CLI2GRP_MAP0, 0x00000030, 0x55555565) 79 }; 80 81 static const struct soc15_reg_golden golden_settings_athub_1_0_0[] = 82 { 83 SOC15_REG_GOLDEN_VALUE(ATHUB, 0, mmRPB_ARB_CNTL, 0x0000ff00, 0x00000800), 84 SOC15_REG_GOLDEN_VALUE(ATHUB, 0, mmRPB_ARB_CNTL2, 0x00ff00ff, 0x00080008) 85 }; 86 87 /* Ecc related register addresses, (BASE + reg offset) */ 88 /* Universal Memory Controller caps (may be fused). */ 89 /* UMCCH:UmcLocalCap */ 90 #define UMCLOCALCAPS_ADDR0 (0x00014306 + 0x00000000) 91 #define UMCLOCALCAPS_ADDR1 (0x00014306 + 0x00000800) 92 #define UMCLOCALCAPS_ADDR2 (0x00014306 + 0x00001000) 93 #define UMCLOCALCAPS_ADDR3 (0x00014306 + 0x00001800) 94 #define UMCLOCALCAPS_ADDR4 (0x00054306 + 0x00000000) 95 #define UMCLOCALCAPS_ADDR5 (0x00054306 + 0x00000800) 96 #define UMCLOCALCAPS_ADDR6 (0x00054306 + 0x00001000) 97 #define UMCLOCALCAPS_ADDR7 (0x00054306 + 0x00001800) 98 #define UMCLOCALCAPS_ADDR8 (0x00094306 + 0x00000000) 99 #define UMCLOCALCAPS_ADDR9 (0x00094306 + 0x00000800) 100 #define UMCLOCALCAPS_ADDR10 (0x00094306 + 0x00001000) 101 #define UMCLOCALCAPS_ADDR11 (0x00094306 + 0x00001800) 102 #define UMCLOCALCAPS_ADDR12 (0x000d4306 + 0x00000000) 103 #define UMCLOCALCAPS_ADDR13 (0x000d4306 + 0x00000800) 104 #define UMCLOCALCAPS_ADDR14 (0x000d4306 + 0x00001000) 105 #define UMCLOCALCAPS_ADDR15 (0x000d4306 + 0x00001800) 106 107 /* Universal Memory Controller Channel config. */ 108 /* UMCCH:UMC_CONFIG */ 109 #define UMCCH_UMC_CONFIG_ADDR0 (0x00014040 + 0x00000000) 110 #define UMCCH_UMC_CONFIG_ADDR1 (0x00014040 + 0x00000800) 111 #define UMCCH_UMC_CONFIG_ADDR2 (0x00014040 + 0x00001000) 112 #define UMCCH_UMC_CONFIG_ADDR3 (0x00014040 + 0x00001800) 113 #define UMCCH_UMC_CONFIG_ADDR4 (0x00054040 + 0x00000000) 114 #define UMCCH_UMC_CONFIG_ADDR5 (0x00054040 + 0x00000800) 115 #define UMCCH_UMC_CONFIG_ADDR6 (0x00054040 + 0x00001000) 116 #define UMCCH_UMC_CONFIG_ADDR7 (0x00054040 + 0x00001800) 117 #define UMCCH_UMC_CONFIG_ADDR8 (0x00094040 + 0x00000000) 118 #define UMCCH_UMC_CONFIG_ADDR9 (0x00094040 + 0x00000800) 119 #define UMCCH_UMC_CONFIG_ADDR10 (0x00094040 + 0x00001000) 120 #define UMCCH_UMC_CONFIG_ADDR11 (0x00094040 + 0x00001800) 121 #define UMCCH_UMC_CONFIG_ADDR12 (0x000d4040 + 0x00000000) 122 #define UMCCH_UMC_CONFIG_ADDR13 (0x000d4040 + 0x00000800) 123 #define UMCCH_UMC_CONFIG_ADDR14 (0x000d4040 + 0x00001000) 124 #define UMCCH_UMC_CONFIG_ADDR15 (0x000d4040 + 0x00001800) 125 126 /* Universal Memory Controller Channel Ecc config. */ 127 /* UMCCH:EccCtrl */ 128 #define UMCCH_ECCCTRL_ADDR0 (0x00014053 + 0x00000000) 129 #define UMCCH_ECCCTRL_ADDR1 (0x00014053 + 0x00000800) 130 #define UMCCH_ECCCTRL_ADDR2 (0x00014053 + 0x00001000) 131 #define UMCCH_ECCCTRL_ADDR3 (0x00014053 + 0x00001800) 132 #define UMCCH_ECCCTRL_ADDR4 (0x00054053 + 0x00000000) 133 #define UMCCH_ECCCTRL_ADDR5 (0x00054053 + 0x00000800) 134 #define UMCCH_ECCCTRL_ADDR6 (0x00054053 + 0x00001000) 135 #define UMCCH_ECCCTRL_ADDR7 (0x00054053 + 0x00001800) 136 #define UMCCH_ECCCTRL_ADDR8 (0x00094053 + 0x00000000) 137 #define UMCCH_ECCCTRL_ADDR9 (0x00094053 + 0x00000800) 138 #define UMCCH_ECCCTRL_ADDR10 (0x00094053 + 0x00001000) 139 #define UMCCH_ECCCTRL_ADDR11 (0x00094053 + 0x00001800) 140 #define UMCCH_ECCCTRL_ADDR12 (0x000d4053 + 0x00000000) 141 #define UMCCH_ECCCTRL_ADDR13 (0x000d4053 + 0x00000800) 142 #define UMCCH_ECCCTRL_ADDR14 (0x000d4053 + 0x00001000) 143 #define UMCCH_ECCCTRL_ADDR15 (0x000d4053 + 0x00001800) 144 145 static const uint32_t ecc_umclocalcap_addrs[] = { 146 UMCLOCALCAPS_ADDR0, 147 UMCLOCALCAPS_ADDR1, 148 UMCLOCALCAPS_ADDR2, 149 UMCLOCALCAPS_ADDR3, 150 UMCLOCALCAPS_ADDR4, 151 UMCLOCALCAPS_ADDR5, 152 UMCLOCALCAPS_ADDR6, 153 UMCLOCALCAPS_ADDR7, 154 UMCLOCALCAPS_ADDR8, 155 UMCLOCALCAPS_ADDR9, 156 UMCLOCALCAPS_ADDR10, 157 UMCLOCALCAPS_ADDR11, 158 UMCLOCALCAPS_ADDR12, 159 UMCLOCALCAPS_ADDR13, 160 UMCLOCALCAPS_ADDR14, 161 UMCLOCALCAPS_ADDR15, 162 }; 163 164 static const uint32_t ecc_umcch_umc_config_addrs[] = { 165 UMCCH_UMC_CONFIG_ADDR0, 166 UMCCH_UMC_CONFIG_ADDR1, 167 UMCCH_UMC_CONFIG_ADDR2, 168 UMCCH_UMC_CONFIG_ADDR3, 169 UMCCH_UMC_CONFIG_ADDR4, 170 UMCCH_UMC_CONFIG_ADDR5, 171 UMCCH_UMC_CONFIG_ADDR6, 172 UMCCH_UMC_CONFIG_ADDR7, 173 UMCCH_UMC_CONFIG_ADDR8, 174 UMCCH_UMC_CONFIG_ADDR9, 175 UMCCH_UMC_CONFIG_ADDR10, 176 UMCCH_UMC_CONFIG_ADDR11, 177 UMCCH_UMC_CONFIG_ADDR12, 178 UMCCH_UMC_CONFIG_ADDR13, 179 UMCCH_UMC_CONFIG_ADDR14, 180 UMCCH_UMC_CONFIG_ADDR15, 181 }; 182 183 static const uint32_t ecc_umcch_eccctrl_addrs[] = { 184 UMCCH_ECCCTRL_ADDR0, 185 UMCCH_ECCCTRL_ADDR1, 186 UMCCH_ECCCTRL_ADDR2, 187 UMCCH_ECCCTRL_ADDR3, 188 UMCCH_ECCCTRL_ADDR4, 189 UMCCH_ECCCTRL_ADDR5, 190 UMCCH_ECCCTRL_ADDR6, 191 UMCCH_ECCCTRL_ADDR7, 192 UMCCH_ECCCTRL_ADDR8, 193 UMCCH_ECCCTRL_ADDR9, 194 UMCCH_ECCCTRL_ADDR10, 195 UMCCH_ECCCTRL_ADDR11, 196 UMCCH_ECCCTRL_ADDR12, 197 UMCCH_ECCCTRL_ADDR13, 198 UMCCH_ECCCTRL_ADDR14, 199 UMCCH_ECCCTRL_ADDR15, 200 }; 201 202 static int gmc_v9_0_vm_fault_interrupt_state(struct amdgpu_device *adev, 203 struct amdgpu_irq_src *src, 204 unsigned type, 205 enum amdgpu_interrupt_state state) 206 { 207 struct amdgpu_vmhub *hub; 208 u32 tmp, reg, bits, i, j; 209 210 bits = VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 211 VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 212 VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 213 VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 214 VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 215 VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 216 VM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK; 217 218 switch (state) { 219 case AMDGPU_IRQ_STATE_DISABLE: 220 for (j = 0; j < AMDGPU_MAX_VMHUBS; j++) { 221 hub = &adev->vmhub[j]; 222 for (i = 0; i < 16; i++) { 223 reg = hub->vm_context0_cntl + i; 224 tmp = RREG32(reg); 225 tmp &= ~bits; 226 WREG32(reg, tmp); 227 } 228 } 229 break; 230 case AMDGPU_IRQ_STATE_ENABLE: 231 for (j = 0; j < AMDGPU_MAX_VMHUBS; j++) { 232 hub = &adev->vmhub[j]; 233 for (i = 0; i < 16; i++) { 234 reg = hub->vm_context0_cntl + i; 235 tmp = RREG32(reg); 236 tmp |= bits; 237 WREG32(reg, tmp); 238 } 239 } 240 default: 241 break; 242 } 243 244 return 0; 245 } 246 247 /** 248 * vega10_ih_prescreen_iv - prescreen an interrupt vector 249 * 250 * @adev: amdgpu_device pointer 251 * 252 * Returns true if the interrupt vector should be further processed. 253 */ 254 static bool gmc_v9_0_prescreen_iv(struct amdgpu_device *adev, 255 struct amdgpu_iv_entry *entry, 256 uint64_t addr) 257 { 258 struct amdgpu_vm *vm; 259 u64 key; 260 int r; 261 262 /* No PASID, can't identify faulting process */ 263 if (!entry->pasid) 264 return true; 265 266 /* Not a retry fault */ 267 if (!(entry->src_data[1] & 0x80)) 268 return true; 269 270 /* Track retry faults in per-VM fault FIFO. */ 271 spin_lock(&adev->vm_manager.pasid_lock); 272 vm = idr_find(&adev->vm_manager.pasid_idr, entry->pasid); 273 if (!vm) { 274 /* VM not found, process it normally */ 275 spin_unlock(&adev->vm_manager.pasid_lock); 276 return true; 277 } 278 279 key = AMDGPU_VM_FAULT(entry->pasid, addr); 280 r = amdgpu_vm_add_fault(vm->fault_hash, key); 281 282 /* Hash table is full or the fault is already being processed, 283 * ignore further page faults 284 */ 285 if (r != 0) { 286 spin_unlock(&adev->vm_manager.pasid_lock); 287 return false; 288 } 289 /* No locking required with single writer and single reader */ 290 r = kfifo_put(&vm->faults, key); 291 if (!r) { 292 /* FIFO is full. Ignore it until there is space */ 293 amdgpu_vm_clear_fault(vm->fault_hash, key); 294 spin_unlock(&adev->vm_manager.pasid_lock); 295 return false; 296 } 297 298 spin_unlock(&adev->vm_manager.pasid_lock); 299 /* It's the first fault for this address, process it normally */ 300 return true; 301 } 302 303 static int gmc_v9_0_process_interrupt(struct amdgpu_device *adev, 304 struct amdgpu_irq_src *source, 305 struct amdgpu_iv_entry *entry) 306 { 307 struct amdgpu_vmhub *hub = &adev->vmhub[entry->vmid_src]; 308 uint32_t status = 0; 309 u64 addr; 310 311 addr = (u64)entry->src_data[0] << 12; 312 addr |= ((u64)entry->src_data[1] & 0xf) << 44; 313 314 if (!gmc_v9_0_prescreen_iv(adev, entry, addr)) 315 return 1; /* This also prevents sending it to KFD */ 316 317 if (!amdgpu_sriov_vf(adev)) { 318 status = RREG32(hub->vm_l2_pro_fault_status); 319 WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1); 320 } 321 322 if (printk_ratelimit()) { 323 struct amdgpu_task_info task_info = { 0 }; 324 325 amdgpu_vm_get_task_info(adev, entry->pasid, &task_info); 326 327 dev_err(adev->dev, 328 "[%s] VMC page fault (src_id:%u ring:%u vmid:%u pasid:%u, for process %s pid %d thread %s pid %d)\n", 329 entry->vmid_src ? "mmhub" : "gfxhub", 330 entry->src_id, entry->ring_id, entry->vmid, 331 entry->pasid, task_info.process_name, task_info.tgid, 332 task_info.task_name, task_info.pid); 333 dev_err(adev->dev, " in page starting at address 0x%016llx from %d\n", 334 addr, entry->client_id); 335 if (!amdgpu_sriov_vf(adev)) 336 dev_err(adev->dev, 337 "VM_L2_PROTECTION_FAULT_STATUS:0x%08X\n", 338 status); 339 } 340 341 return 0; 342 } 343 344 static const struct amdgpu_irq_src_funcs gmc_v9_0_irq_funcs = { 345 .set = gmc_v9_0_vm_fault_interrupt_state, 346 .process = gmc_v9_0_process_interrupt, 347 }; 348 349 static void gmc_v9_0_set_irq_funcs(struct amdgpu_device *adev) 350 { 351 adev->gmc.vm_fault.num_types = 1; 352 adev->gmc.vm_fault.funcs = &gmc_v9_0_irq_funcs; 353 } 354 355 static uint32_t gmc_v9_0_get_invalidate_req(unsigned int vmid, 356 uint32_t flush_type) 357 { 358 u32 req = 0; 359 360 req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, 361 PER_VMID_INVALIDATE_REQ, 1 << vmid); 362 req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, flush_type); 363 req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PTES, 1); 364 req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE0, 1); 365 req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE1, 1); 366 req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE2, 1); 367 req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, INVALIDATE_L1_PTES, 1); 368 req = REG_SET_FIELD(req, VM_INVALIDATE_ENG0_REQ, 369 CLEAR_PROTECTION_FAULT_STATUS_ADDR, 0); 370 371 return req; 372 } 373 374 /* 375 * GART 376 * VMID 0 is the physical GPU addresses as used by the kernel. 377 * VMIDs 1-15 are used for userspace clients and are handled 378 * by the amdgpu vm/hsa code. 379 */ 380 381 /** 382 * gmc_v9_0_flush_gpu_tlb - tlb flush with certain type 383 * 384 * @adev: amdgpu_device pointer 385 * @vmid: vm instance to flush 386 * @flush_type: the flush type 387 * 388 * Flush the TLB for the requested page table using certain type. 389 */ 390 static void gmc_v9_0_flush_gpu_tlb(struct amdgpu_device *adev, 391 uint32_t vmid, uint32_t flush_type) 392 { 393 const unsigned eng = 17; 394 unsigned i, j; 395 396 for (i = 0; i < AMDGPU_MAX_VMHUBS; ++i) { 397 struct amdgpu_vmhub *hub = &adev->vmhub[i]; 398 u32 tmp = gmc_v9_0_get_invalidate_req(vmid, flush_type); 399 400 /* This is necessary for a HW workaround under SRIOV as well 401 * as GFXOFF under bare metal 402 */ 403 if (adev->gfx.kiq.ring.sched.ready && 404 (amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev)) && 405 !adev->in_gpu_reset) { 406 uint32_t req = hub->vm_inv_eng0_req + eng; 407 uint32_t ack = hub->vm_inv_eng0_ack + eng; 408 409 amdgpu_virt_kiq_reg_write_reg_wait(adev, req, ack, tmp, 410 1 << vmid); 411 continue; 412 } 413 414 spin_lock(&adev->gmc.invalidate_lock); 415 WREG32_NO_KIQ(hub->vm_inv_eng0_req + eng, tmp); 416 for (j = 0; j < adev->usec_timeout; j++) { 417 tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_ack + eng); 418 if (tmp & (1 << vmid)) 419 break; 420 udelay(1); 421 } 422 spin_unlock(&adev->gmc.invalidate_lock); 423 if (j < adev->usec_timeout) 424 continue; 425 426 DRM_ERROR("Timeout waiting for VM flush ACK!\n"); 427 } 428 } 429 430 static uint64_t gmc_v9_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring, 431 unsigned vmid, uint64_t pd_addr) 432 { 433 struct amdgpu_device *adev = ring->adev; 434 struct amdgpu_vmhub *hub = &adev->vmhub[ring->funcs->vmhub]; 435 uint32_t req = gmc_v9_0_get_invalidate_req(vmid, 0); 436 unsigned eng = ring->vm_inv_eng; 437 438 amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_lo32 + (2 * vmid), 439 lower_32_bits(pd_addr)); 440 441 amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_hi32 + (2 * vmid), 442 upper_32_bits(pd_addr)); 443 444 amdgpu_ring_emit_reg_write_reg_wait(ring, hub->vm_inv_eng0_req + eng, 445 hub->vm_inv_eng0_ack + eng, 446 req, 1 << vmid); 447 448 return pd_addr; 449 } 450 451 static void gmc_v9_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid, 452 unsigned pasid) 453 { 454 struct amdgpu_device *adev = ring->adev; 455 uint32_t reg; 456 457 if (ring->funcs->vmhub == AMDGPU_GFXHUB) 458 reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT) + vmid; 459 else 460 reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT_MM) + vmid; 461 462 amdgpu_ring_emit_wreg(ring, reg, pasid); 463 } 464 465 /** 466 * gmc_v9_0_set_pte_pde - update the page tables using MMIO 467 * 468 * @adev: amdgpu_device pointer 469 * @cpu_pt_addr: cpu address of the page table 470 * @gpu_page_idx: entry in the page table to update 471 * @addr: dst addr to write into pte/pde 472 * @flags: access flags 473 * 474 * Update the page tables using the CPU. 475 */ 476 static int gmc_v9_0_set_pte_pde(struct amdgpu_device *adev, void *cpu_pt_addr, 477 uint32_t gpu_page_idx, uint64_t addr, 478 uint64_t flags) 479 { 480 void __iomem *ptr = (void *)cpu_pt_addr; 481 uint64_t value; 482 483 /* 484 * PTE format on VEGA 10: 485 * 63:59 reserved 486 * 58:57 mtype 487 * 56 F 488 * 55 L 489 * 54 P 490 * 53 SW 491 * 52 T 492 * 50:48 reserved 493 * 47:12 4k physical page base address 494 * 11:7 fragment 495 * 6 write 496 * 5 read 497 * 4 exe 498 * 3 Z 499 * 2 snooped 500 * 1 system 501 * 0 valid 502 * 503 * PDE format on VEGA 10: 504 * 63:59 block fragment size 505 * 58:55 reserved 506 * 54 P 507 * 53:48 reserved 508 * 47:6 physical base address of PD or PTE 509 * 5:3 reserved 510 * 2 C 511 * 1 system 512 * 0 valid 513 */ 514 515 /* 516 * The following is for PTE only. GART does not have PDEs. 517 */ 518 value = addr & 0x0000FFFFFFFFF000ULL; 519 value |= flags; 520 writeq(value, ptr + (gpu_page_idx * 8)); 521 return 0; 522 } 523 524 static uint64_t gmc_v9_0_get_vm_pte_flags(struct amdgpu_device *adev, 525 uint32_t flags) 526 527 { 528 uint64_t pte_flag = 0; 529 530 if (flags & AMDGPU_VM_PAGE_EXECUTABLE) 531 pte_flag |= AMDGPU_PTE_EXECUTABLE; 532 if (flags & AMDGPU_VM_PAGE_READABLE) 533 pte_flag |= AMDGPU_PTE_READABLE; 534 if (flags & AMDGPU_VM_PAGE_WRITEABLE) 535 pte_flag |= AMDGPU_PTE_WRITEABLE; 536 537 switch (flags & AMDGPU_VM_MTYPE_MASK) { 538 case AMDGPU_VM_MTYPE_DEFAULT: 539 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_NC); 540 break; 541 case AMDGPU_VM_MTYPE_NC: 542 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_NC); 543 break; 544 case AMDGPU_VM_MTYPE_WC: 545 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_WC); 546 break; 547 case AMDGPU_VM_MTYPE_CC: 548 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_CC); 549 break; 550 case AMDGPU_VM_MTYPE_UC: 551 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_UC); 552 break; 553 default: 554 pte_flag |= AMDGPU_PTE_MTYPE(MTYPE_NC); 555 break; 556 } 557 558 if (flags & AMDGPU_VM_PAGE_PRT) 559 pte_flag |= AMDGPU_PTE_PRT; 560 561 return pte_flag; 562 } 563 564 static void gmc_v9_0_get_vm_pde(struct amdgpu_device *adev, int level, 565 uint64_t *addr, uint64_t *flags) 566 { 567 if (!(*flags & AMDGPU_PDE_PTE) && !(*flags & AMDGPU_PTE_SYSTEM)) 568 *addr = adev->vm_manager.vram_base_offset + *addr - 569 adev->gmc.vram_start; 570 BUG_ON(*addr & 0xFFFF00000000003FULL); 571 572 if (!adev->gmc.translate_further) 573 return; 574 575 if (level == AMDGPU_VM_PDB1) { 576 /* Set the block fragment size */ 577 if (!(*flags & AMDGPU_PDE_PTE)) 578 *flags |= AMDGPU_PDE_BFS(0x9); 579 580 } else if (level == AMDGPU_VM_PDB0) { 581 if (*flags & AMDGPU_PDE_PTE) 582 *flags &= ~AMDGPU_PDE_PTE; 583 else 584 *flags |= AMDGPU_PTE_TF; 585 } 586 } 587 588 static const struct amdgpu_gmc_funcs gmc_v9_0_gmc_funcs = { 589 .flush_gpu_tlb = gmc_v9_0_flush_gpu_tlb, 590 .emit_flush_gpu_tlb = gmc_v9_0_emit_flush_gpu_tlb, 591 .emit_pasid_mapping = gmc_v9_0_emit_pasid_mapping, 592 .set_pte_pde = gmc_v9_0_set_pte_pde, 593 .get_vm_pte_flags = gmc_v9_0_get_vm_pte_flags, 594 .get_vm_pde = gmc_v9_0_get_vm_pde 595 }; 596 597 static void gmc_v9_0_set_gmc_funcs(struct amdgpu_device *adev) 598 { 599 adev->gmc.gmc_funcs = &gmc_v9_0_gmc_funcs; 600 } 601 602 static int gmc_v9_0_early_init(void *handle) 603 { 604 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 605 606 gmc_v9_0_set_gmc_funcs(adev); 607 gmc_v9_0_set_irq_funcs(adev); 608 609 adev->gmc.shared_aperture_start = 0x2000000000000000ULL; 610 adev->gmc.shared_aperture_end = 611 adev->gmc.shared_aperture_start + (4ULL << 30) - 1; 612 adev->gmc.private_aperture_start = 0x1000000000000000ULL; 613 adev->gmc.private_aperture_end = 614 adev->gmc.private_aperture_start + (4ULL << 30) - 1; 615 616 return 0; 617 } 618 619 static int gmc_v9_0_ecc_available(struct amdgpu_device *adev) 620 { 621 uint32_t reg_val; 622 uint32_t reg_addr; 623 uint32_t field_val; 624 size_t i; 625 uint32_t fv2; 626 size_t lost_sheep; 627 628 DRM_DEBUG("ecc: gmc_v9_0_ecc_available()\n"); 629 630 lost_sheep = 0; 631 for (i = 0; i < ARRAY_SIZE(ecc_umclocalcap_addrs); ++i) { 632 reg_addr = ecc_umclocalcap_addrs[i]; 633 DRM_DEBUG("ecc: " 634 "UMCCH_UmcLocalCap[%zu]: reg_addr: 0x%08x\n", 635 i, reg_addr); 636 reg_val = RREG32(reg_addr); 637 field_val = REG_GET_FIELD(reg_val, UMCCH0_0_UmcLocalCap, 638 EccDis); 639 DRM_DEBUG("ecc: " 640 "reg_val: 0x%08x, " 641 "EccDis: 0x%08x, ", 642 reg_val, field_val); 643 if (field_val) { 644 DRM_ERROR("ecc: UmcLocalCap:EccDis is set.\n"); 645 ++lost_sheep; 646 } 647 } 648 649 for (i = 0; i < ARRAY_SIZE(ecc_umcch_umc_config_addrs); ++i) { 650 reg_addr = ecc_umcch_umc_config_addrs[i]; 651 DRM_DEBUG("ecc: " 652 "UMCCH0_0_UMC_CONFIG[%zu]: reg_addr: 0x%08x", 653 i, reg_addr); 654 reg_val = RREG32(reg_addr); 655 field_val = REG_GET_FIELD(reg_val, UMCCH0_0_UMC_CONFIG, 656 DramReady); 657 DRM_DEBUG("ecc: " 658 "reg_val: 0x%08x, " 659 "DramReady: 0x%08x\n", 660 reg_val, field_val); 661 662 if (!field_val) { 663 DRM_ERROR("ecc: UMC_CONFIG:DramReady is not set.\n"); 664 ++lost_sheep; 665 } 666 } 667 668 for (i = 0; i < ARRAY_SIZE(ecc_umcch_eccctrl_addrs); ++i) { 669 reg_addr = ecc_umcch_eccctrl_addrs[i]; 670 DRM_DEBUG("ecc: " 671 "UMCCH_EccCtrl[%zu]: reg_addr: 0x%08x, ", 672 i, reg_addr); 673 reg_val = RREG32(reg_addr); 674 field_val = REG_GET_FIELD(reg_val, UMCCH0_0_EccCtrl, 675 WrEccEn); 676 fv2 = REG_GET_FIELD(reg_val, UMCCH0_0_EccCtrl, 677 RdEccEn); 678 DRM_DEBUG("ecc: " 679 "reg_val: 0x%08x, " 680 "WrEccEn: 0x%08x, " 681 "RdEccEn: 0x%08x\n", 682 reg_val, field_val, fv2); 683 684 if (!field_val) { 685 DRM_DEBUG("ecc: WrEccEn is not set\n"); 686 ++lost_sheep; 687 } 688 if (!fv2) { 689 DRM_DEBUG("ecc: RdEccEn is not set\n"); 690 ++lost_sheep; 691 } 692 } 693 694 DRM_DEBUG("ecc: lost_sheep: %zu\n", lost_sheep); 695 return lost_sheep == 0; 696 } 697 698 static bool gmc_v9_0_keep_stolen_memory(struct amdgpu_device *adev) 699 { 700 701 /* 702 * TODO: 703 * Currently there is a bug where some memory client outside 704 * of the driver writes to first 8M of VRAM on S3 resume, 705 * this overrides GART which by default gets placed in first 8M and 706 * causes VM_FAULTS once GTT is accessed. 707 * Keep the stolen memory reservation until the while this is not solved. 708 * Also check code in gmc_v9_0_get_vbios_fb_size and gmc_v9_0_late_init 709 */ 710 switch (adev->asic_type) { 711 case CHIP_VEGA10: 712 return true; 713 case CHIP_RAVEN: 714 case CHIP_VEGA12: 715 case CHIP_VEGA20: 716 default: 717 return false; 718 } 719 } 720 721 static int gmc_v9_0_allocate_vm_inv_eng(struct amdgpu_device *adev) 722 { 723 struct amdgpu_ring *ring; 724 unsigned vm_inv_engs[AMDGPU_MAX_VMHUBS] = 725 {GFXHUB_FREE_VM_INV_ENGS_BITMAP, MMHUB_FREE_VM_INV_ENGS_BITMAP}; 726 unsigned i; 727 unsigned vmhub, inv_eng; 728 729 for (i = 0; i < adev->num_rings; ++i) { 730 ring = adev->rings[i]; 731 vmhub = ring->funcs->vmhub; 732 733 inv_eng = ffs(vm_inv_engs[vmhub]); 734 if (!inv_eng) { 735 dev_err(adev->dev, "no VM inv eng for ring %s\n", 736 ring->name); 737 return -EINVAL; 738 } 739 740 ring->vm_inv_eng = inv_eng - 1; 741 change_bit(inv_eng - 1, (unsigned long *)(&vm_inv_engs[vmhub])); 742 743 dev_info(adev->dev, "ring %s uses VM inv eng %u on hub %u\n", 744 ring->name, ring->vm_inv_eng, ring->funcs->vmhub); 745 } 746 747 return 0; 748 } 749 750 static int gmc_v9_0_late_init(void *handle) 751 { 752 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 753 int r; 754 755 if (!gmc_v9_0_keep_stolen_memory(adev)) 756 amdgpu_bo_late_init(adev); 757 758 r = gmc_v9_0_allocate_vm_inv_eng(adev); 759 if (r) 760 return r; 761 762 if (adev->asic_type == CHIP_VEGA10 && !amdgpu_sriov_vf(adev)) { 763 r = gmc_v9_0_ecc_available(adev); 764 if (r == 1) { 765 DRM_INFO("ECC is active.\n"); 766 } else if (r == 0) { 767 DRM_INFO("ECC is not present.\n"); 768 adev->df_funcs->enable_ecc_force_par_wr_rmw(adev, false); 769 } else { 770 DRM_ERROR("gmc_v9_0_ecc_available() failed. r: %d\n", r); 771 return r; 772 } 773 } 774 775 return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0); 776 } 777 778 static void gmc_v9_0_vram_gtt_location(struct amdgpu_device *adev, 779 struct amdgpu_gmc *mc) 780 { 781 u64 base = 0; 782 if (!amdgpu_sriov_vf(adev)) 783 base = mmhub_v1_0_get_fb_location(adev); 784 /* add the xgmi offset of the physical node */ 785 base += adev->gmc.xgmi.physical_node_id * adev->gmc.xgmi.node_segment_size; 786 amdgpu_gmc_vram_location(adev, &adev->gmc, base); 787 amdgpu_gmc_gart_location(adev, mc); 788 if (!amdgpu_sriov_vf(adev)) 789 amdgpu_gmc_agp_location(adev, mc); 790 /* base offset of vram pages */ 791 adev->vm_manager.vram_base_offset = gfxhub_v1_0_get_mc_fb_offset(adev); 792 793 /* XXX: add the xgmi offset of the physical node? */ 794 adev->vm_manager.vram_base_offset += 795 adev->gmc.xgmi.physical_node_id * adev->gmc.xgmi.node_segment_size; 796 } 797 798 /** 799 * gmc_v9_0_mc_init - initialize the memory controller driver params 800 * 801 * @adev: amdgpu_device pointer 802 * 803 * Look up the amount of vram, vram width, and decide how to place 804 * vram and gart within the GPU's physical address space. 805 * Returns 0 for success. 806 */ 807 static int gmc_v9_0_mc_init(struct amdgpu_device *adev) 808 { 809 int chansize, numchan; 810 int r; 811 812 if (amdgpu_emu_mode != 1) 813 adev->gmc.vram_width = amdgpu_atomfirmware_get_vram_width(adev); 814 if (!adev->gmc.vram_width) { 815 /* hbm memory channel size */ 816 if (adev->flags & AMD_IS_APU) 817 chansize = 64; 818 else 819 chansize = 128; 820 821 numchan = adev->df_funcs->get_hbm_channel_number(adev); 822 adev->gmc.vram_width = numchan * chansize; 823 } 824 825 /* size in MB on si */ 826 adev->gmc.mc_vram_size = 827 adev->nbio_funcs->get_memsize(adev) * 1024ULL * 1024ULL; 828 adev->gmc.real_vram_size = adev->gmc.mc_vram_size; 829 830 if (!(adev->flags & AMD_IS_APU)) { 831 r = amdgpu_device_resize_fb_bar(adev); 832 if (r) 833 return r; 834 } 835 adev->gmc.aper_base = pci_resource_start(adev->pdev, 0); 836 adev->gmc.aper_size = pci_resource_len(adev->pdev, 0); 837 838 #ifdef CONFIG_X86_64 839 if (adev->flags & AMD_IS_APU) { 840 adev->gmc.aper_base = gfxhub_v1_0_get_mc_fb_offset(adev); 841 adev->gmc.aper_size = adev->gmc.real_vram_size; 842 } 843 #endif 844 /* In case the PCI BAR is larger than the actual amount of vram */ 845 adev->gmc.visible_vram_size = adev->gmc.aper_size; 846 if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size) 847 adev->gmc.visible_vram_size = adev->gmc.real_vram_size; 848 849 /* set the gart size */ 850 if (amdgpu_gart_size == -1) { 851 switch (adev->asic_type) { 852 case CHIP_VEGA10: /* all engines support GPUVM */ 853 case CHIP_VEGA12: /* all engines support GPUVM */ 854 case CHIP_VEGA20: 855 default: 856 adev->gmc.gart_size = 512ULL << 20; 857 break; 858 case CHIP_RAVEN: /* DCE SG support */ 859 adev->gmc.gart_size = 1024ULL << 20; 860 break; 861 } 862 } else { 863 adev->gmc.gart_size = (u64)amdgpu_gart_size << 20; 864 } 865 866 gmc_v9_0_vram_gtt_location(adev, &adev->gmc); 867 868 return 0; 869 } 870 871 static int gmc_v9_0_gart_init(struct amdgpu_device *adev) 872 { 873 int r; 874 875 if (adev->gart.bo) { 876 WARN(1, "VEGA10 PCIE GART already initialized\n"); 877 return 0; 878 } 879 /* Initialize common gart structure */ 880 r = amdgpu_gart_init(adev); 881 if (r) 882 return r; 883 adev->gart.table_size = adev->gart.num_gpu_pages * 8; 884 adev->gart.gart_pte_flags = AMDGPU_PTE_MTYPE(MTYPE_UC) | 885 AMDGPU_PTE_EXECUTABLE; 886 return amdgpu_gart_table_vram_alloc(adev); 887 } 888 889 static unsigned gmc_v9_0_get_vbios_fb_size(struct amdgpu_device *adev) 890 { 891 u32 d1vga_control = RREG32_SOC15(DCE, 0, mmD1VGA_CONTROL); 892 unsigned size; 893 894 /* 895 * TODO Remove once GART corruption is resolved 896 * Check related code in gmc_v9_0_sw_fini 897 * */ 898 if (gmc_v9_0_keep_stolen_memory(adev)) 899 return 9 * 1024 * 1024; 900 901 if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) { 902 size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */ 903 } else { 904 u32 viewport; 905 906 switch (adev->asic_type) { 907 case CHIP_RAVEN: 908 viewport = RREG32_SOC15(DCE, 0, mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION); 909 size = (REG_GET_FIELD(viewport, 910 HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_HEIGHT) * 911 REG_GET_FIELD(viewport, 912 HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_WIDTH) * 913 4); 914 break; 915 case CHIP_VEGA10: 916 case CHIP_VEGA12: 917 case CHIP_VEGA20: 918 default: 919 viewport = RREG32_SOC15(DCE, 0, mmSCL0_VIEWPORT_SIZE); 920 size = (REG_GET_FIELD(viewport, SCL0_VIEWPORT_SIZE, VIEWPORT_HEIGHT) * 921 REG_GET_FIELD(viewport, SCL0_VIEWPORT_SIZE, VIEWPORT_WIDTH) * 922 4); 923 break; 924 } 925 } 926 /* return 0 if the pre-OS buffer uses up most of vram */ 927 if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024)) 928 return 0; 929 930 return size; 931 } 932 933 static int gmc_v9_0_sw_init(void *handle) 934 { 935 int r; 936 int dma_bits; 937 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 938 939 gfxhub_v1_0_init(adev); 940 mmhub_v1_0_init(adev); 941 942 spin_lock_init(&adev->gmc.invalidate_lock); 943 944 adev->gmc.vram_type = amdgpu_atomfirmware_get_vram_type(adev); 945 switch (adev->asic_type) { 946 case CHIP_RAVEN: 947 if (adev->rev_id == 0x0 || adev->rev_id == 0x1) { 948 amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48); 949 } else { 950 /* vm_size is 128TB + 512GB for legacy 3-level page support */ 951 amdgpu_vm_adjust_size(adev, 128 * 1024 + 512, 9, 2, 48); 952 adev->gmc.translate_further = 953 adev->vm_manager.num_level > 1; 954 } 955 break; 956 case CHIP_VEGA10: 957 case CHIP_VEGA12: 958 case CHIP_VEGA20: 959 /* 960 * To fulfill 4-level page support, 961 * vm size is 256TB (48bit), maximum size of Vega10, 962 * block size 512 (9bit) 963 */ 964 amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48); 965 break; 966 default: 967 break; 968 } 969 970 /* This interrupt is VMC page fault.*/ 971 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VMC, VMC_1_0__SRCID__VM_FAULT, 972 &adev->gmc.vm_fault); 973 if (r) 974 return r; 975 976 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_UTCL2, UTCL2_1_0__SRCID__FAULT, 977 &adev->gmc.vm_fault); 978 979 if (r) 980 return r; 981 982 /* Set the internal MC address mask 983 * This is the max address of the GPU's 984 * internal address space. 985 */ 986 adev->gmc.mc_mask = 0xffffffffffffULL; /* 48 bit MC */ 987 988 /* set DMA mask + need_dma32 flags. 989 * PCIE - can handle 44-bits. 990 * IGP - can handle 44-bits 991 * PCI - dma32 for legacy pci gart, 44 bits on vega10 992 */ 993 adev->need_dma32 = false; 994 dma_bits = adev->need_dma32 ? 32 : 44; 995 r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits)); 996 if (r) { 997 adev->need_dma32 = true; 998 dma_bits = 32; 999 printk(KERN_WARNING "amdgpu: No suitable DMA available.\n"); 1000 } 1001 r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits)); 1002 if (r) { 1003 pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32)); 1004 printk(KERN_WARNING "amdgpu: No coherent DMA available.\n"); 1005 } 1006 adev->need_swiotlb = drm_get_max_iomem() > ((u64)1 << dma_bits); 1007 1008 if (adev->gmc.xgmi.supported) { 1009 r = gfxhub_v1_1_get_xgmi_info(adev); 1010 if (r) 1011 return r; 1012 } 1013 1014 r = gmc_v9_0_mc_init(adev); 1015 if (r) 1016 return r; 1017 1018 adev->gmc.stolen_size = gmc_v9_0_get_vbios_fb_size(adev); 1019 1020 /* Memory manager */ 1021 r = amdgpu_bo_init(adev); 1022 if (r) 1023 return r; 1024 1025 r = gmc_v9_0_gart_init(adev); 1026 if (r) 1027 return r; 1028 1029 /* 1030 * number of VMs 1031 * VMID 0 is reserved for System 1032 * amdgpu graphics/compute will use VMIDs 1-7 1033 * amdkfd will use VMIDs 8-15 1034 */ 1035 adev->vm_manager.id_mgr[AMDGPU_GFXHUB].num_ids = AMDGPU_NUM_OF_VMIDS; 1036 adev->vm_manager.id_mgr[AMDGPU_MMHUB].num_ids = AMDGPU_NUM_OF_VMIDS; 1037 1038 amdgpu_vm_manager_init(adev); 1039 1040 return 0; 1041 } 1042 1043 static int gmc_v9_0_sw_fini(void *handle) 1044 { 1045 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1046 1047 amdgpu_gem_force_release(adev); 1048 amdgpu_vm_manager_fini(adev); 1049 1050 if (gmc_v9_0_keep_stolen_memory(adev)) 1051 amdgpu_bo_free_kernel(&adev->stolen_vga_memory, NULL, NULL); 1052 1053 amdgpu_gart_table_vram_free(adev); 1054 amdgpu_bo_fini(adev); 1055 amdgpu_gart_fini(adev); 1056 1057 return 0; 1058 } 1059 1060 static void gmc_v9_0_init_golden_registers(struct amdgpu_device *adev) 1061 { 1062 1063 switch (adev->asic_type) { 1064 case CHIP_VEGA10: 1065 case CHIP_VEGA20: 1066 soc15_program_register_sequence(adev, 1067 golden_settings_mmhub_1_0_0, 1068 ARRAY_SIZE(golden_settings_mmhub_1_0_0)); 1069 soc15_program_register_sequence(adev, 1070 golden_settings_athub_1_0_0, 1071 ARRAY_SIZE(golden_settings_athub_1_0_0)); 1072 break; 1073 case CHIP_VEGA12: 1074 break; 1075 case CHIP_RAVEN: 1076 soc15_program_register_sequence(adev, 1077 golden_settings_athub_1_0_0, 1078 ARRAY_SIZE(golden_settings_athub_1_0_0)); 1079 break; 1080 default: 1081 break; 1082 } 1083 } 1084 1085 /** 1086 * gmc_v9_0_gart_enable - gart enable 1087 * 1088 * @adev: amdgpu_device pointer 1089 */ 1090 static int gmc_v9_0_gart_enable(struct amdgpu_device *adev) 1091 { 1092 int r; 1093 bool value; 1094 u32 tmp; 1095 1096 amdgpu_device_program_register_sequence(adev, 1097 golden_settings_vega10_hdp, 1098 ARRAY_SIZE(golden_settings_vega10_hdp)); 1099 1100 if (adev->gart.bo == NULL) { 1101 dev_err(adev->dev, "No VRAM object for PCIE GART.\n"); 1102 return -EINVAL; 1103 } 1104 r = amdgpu_gart_table_vram_pin(adev); 1105 if (r) 1106 return r; 1107 1108 switch (adev->asic_type) { 1109 case CHIP_RAVEN: 1110 mmhub_v1_0_update_power_gating(adev, true); 1111 break; 1112 default: 1113 break; 1114 } 1115 1116 r = gfxhub_v1_0_gart_enable(adev); 1117 if (r) 1118 return r; 1119 1120 r = mmhub_v1_0_gart_enable(adev); 1121 if (r) 1122 return r; 1123 1124 WREG32_FIELD15(HDP, 0, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 1); 1125 1126 tmp = RREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL); 1127 WREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL, tmp); 1128 1129 /* After HDP is initialized, flush HDP.*/ 1130 adev->nbio_funcs->hdp_flush(adev, NULL); 1131 1132 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS) 1133 value = false; 1134 else 1135 value = true; 1136 1137 gfxhub_v1_0_set_fault_enable_default(adev, value); 1138 mmhub_v1_0_set_fault_enable_default(adev, value); 1139 gmc_v9_0_flush_gpu_tlb(adev, 0, 0); 1140 1141 DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n", 1142 (unsigned)(adev->gmc.gart_size >> 20), 1143 (unsigned long long)amdgpu_bo_gpu_offset(adev->gart.bo)); 1144 adev->gart.ready = true; 1145 return 0; 1146 } 1147 1148 static int gmc_v9_0_hw_init(void *handle) 1149 { 1150 int r; 1151 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1152 1153 /* The sequence of these two function calls matters.*/ 1154 gmc_v9_0_init_golden_registers(adev); 1155 1156 if (adev->mode_info.num_crtc) { 1157 /* Lockout access through VGA aperture*/ 1158 WREG32_FIELD15(DCE, 0, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1); 1159 1160 /* disable VGA render */ 1161 WREG32_FIELD15(DCE, 0, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0); 1162 } 1163 1164 r = gmc_v9_0_gart_enable(adev); 1165 1166 return r; 1167 } 1168 1169 /** 1170 * gmc_v9_0_gart_disable - gart disable 1171 * 1172 * @adev: amdgpu_device pointer 1173 * 1174 * This disables all VM page table. 1175 */ 1176 static void gmc_v9_0_gart_disable(struct amdgpu_device *adev) 1177 { 1178 gfxhub_v1_0_gart_disable(adev); 1179 mmhub_v1_0_gart_disable(adev); 1180 amdgpu_gart_table_vram_unpin(adev); 1181 } 1182 1183 static int gmc_v9_0_hw_fini(void *handle) 1184 { 1185 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1186 1187 if (amdgpu_sriov_vf(adev)) { 1188 /* full access mode, so don't touch any GMC register */ 1189 DRM_DEBUG("For SRIOV client, shouldn't do anything.\n"); 1190 return 0; 1191 } 1192 1193 amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0); 1194 gmc_v9_0_gart_disable(adev); 1195 1196 return 0; 1197 } 1198 1199 static int gmc_v9_0_suspend(void *handle) 1200 { 1201 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1202 1203 return gmc_v9_0_hw_fini(adev); 1204 } 1205 1206 static int gmc_v9_0_resume(void *handle) 1207 { 1208 int r; 1209 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1210 1211 r = gmc_v9_0_hw_init(adev); 1212 if (r) 1213 return r; 1214 1215 amdgpu_vmid_reset_all(adev); 1216 1217 return 0; 1218 } 1219 1220 static bool gmc_v9_0_is_idle(void *handle) 1221 { 1222 /* MC is always ready in GMC v9.*/ 1223 return true; 1224 } 1225 1226 static int gmc_v9_0_wait_for_idle(void *handle) 1227 { 1228 /* There is no need to wait for MC idle in GMC v9.*/ 1229 return 0; 1230 } 1231 1232 static int gmc_v9_0_soft_reset(void *handle) 1233 { 1234 /* XXX for emulation.*/ 1235 return 0; 1236 } 1237 1238 static int gmc_v9_0_set_clockgating_state(void *handle, 1239 enum amd_clockgating_state state) 1240 { 1241 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1242 1243 return mmhub_v1_0_set_clockgating(adev, state); 1244 } 1245 1246 static void gmc_v9_0_get_clockgating_state(void *handle, u32 *flags) 1247 { 1248 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1249 1250 mmhub_v1_0_get_clockgating(adev, flags); 1251 } 1252 1253 static int gmc_v9_0_set_powergating_state(void *handle, 1254 enum amd_powergating_state state) 1255 { 1256 return 0; 1257 } 1258 1259 const struct amd_ip_funcs gmc_v9_0_ip_funcs = { 1260 .name = "gmc_v9_0", 1261 .early_init = gmc_v9_0_early_init, 1262 .late_init = gmc_v9_0_late_init, 1263 .sw_init = gmc_v9_0_sw_init, 1264 .sw_fini = gmc_v9_0_sw_fini, 1265 .hw_init = gmc_v9_0_hw_init, 1266 .hw_fini = gmc_v9_0_hw_fini, 1267 .suspend = gmc_v9_0_suspend, 1268 .resume = gmc_v9_0_resume, 1269 .is_idle = gmc_v9_0_is_idle, 1270 .wait_for_idle = gmc_v9_0_wait_for_idle, 1271 .soft_reset = gmc_v9_0_soft_reset, 1272 .set_clockgating_state = gmc_v9_0_set_clockgating_state, 1273 .set_powergating_state = gmc_v9_0_set_powergating_state, 1274 .get_clockgating_state = gmc_v9_0_get_clockgating_state, 1275 }; 1276 1277 const struct amdgpu_ip_block_version gmc_v9_0_ip_block = 1278 { 1279 .type = AMD_IP_BLOCK_TYPE_GMC, 1280 .major = 9, 1281 .minor = 0, 1282 .rev = 0, 1283 .funcs = &gmc_v9_0_ip_funcs, 1284 }; 1285