1 /* 2 * Copyright 2008 Advanced Micro Devices, Inc. 3 * Copyright 2008 Red Hat Inc. 4 * Copyright 2009 Jerome Glisse. 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 * Authors: Dave Airlie 25 * Alex Deucher 26 * Jerome Glisse 27 */ 28 #ifndef __AMDGPU_H__ 29 #define __AMDGPU_H__ 30 31 #ifdef pr_fmt 32 #undef pr_fmt 33 #endif 34 35 #define pr_fmt(fmt) "amdgpu: " fmt 36 37 #include "amdgpu_ctx.h" 38 39 #include <linux/atomic.h> 40 #include <linux/wait.h> 41 #include <linux/list.h> 42 #include <linux/kref.h> 43 #include <linux/rbtree.h> 44 #include <linux/hashtable.h> 45 #include <linux/dma-fence.h> 46 #include <linux/pci.h> 47 48 #include <drm/ttm/ttm_bo.h> 49 #include <drm/ttm/ttm_placement.h> 50 51 #include <drm/amdgpu_drm.h> 52 #include <drm/drm_gem.h> 53 #include <drm/drm_ioctl.h> 54 55 #include <kgd_kfd_interface.h> 56 #include "dm_pp_interface.h" 57 #include "kgd_pp_interface.h" 58 59 #include "amd_shared.h" 60 #include "amdgpu_utils.h" 61 #include "amdgpu_mode.h" 62 #include "amdgpu_ih.h" 63 #include "amdgpu_irq.h" 64 #include "amdgpu_ucode.h" 65 #include "amdgpu_ttm.h" 66 #include "amdgpu_psp.h" 67 #include "amdgpu_gds.h" 68 #include "amdgpu_sync.h" 69 #include "amdgpu_ring.h" 70 #include "amdgpu_vm.h" 71 #include "amdgpu_dpm.h" 72 #include "amdgpu_acp.h" 73 #include "amdgpu_uvd.h" 74 #include "amdgpu_vce.h" 75 #include "amdgpu_vcn.h" 76 #include "amdgpu_jpeg.h" 77 #include "amdgpu_vpe.h" 78 #include "amdgpu_umsch_mm.h" 79 #include "amdgpu_gmc.h" 80 #include "amdgpu_gfx.h" 81 #include "amdgpu_sdma.h" 82 #include "amdgpu_lsdma.h" 83 #include "amdgpu_nbio.h" 84 #include "amdgpu_reg_access.h" 85 #include "amdgpu_hdp.h" 86 #include "amdgpu_dm.h" 87 #include "amdgpu_virt.h" 88 #include "amdgpu_csa.h" 89 #include "amdgpu_mes_ctx.h" 90 #include "amdgpu_gart.h" 91 #include "amdgpu_debugfs.h" 92 #include "amdgpu_job.h" 93 #include "amdgpu_bo_list.h" 94 #include "amdgpu_gem.h" 95 #include "amdgpu_doorbell.h" 96 #include "amdgpu_amdkfd.h" 97 #include "amdgpu_discovery.h" 98 #include "amdgpu_mes.h" 99 #include "amdgpu_umc.h" 100 #include "amdgpu_mmhub.h" 101 #include "amdgpu_gfxhub.h" 102 #include "amdgpu_df.h" 103 #include "amdgpu_smuio.h" 104 #include "amdgpu_fdinfo.h" 105 #include "amdgpu_mca.h" 106 #include "amdgpu_aca.h" 107 #include "amdgpu_ras.h" 108 #include "amdgpu_cper.h" 109 #include "amdgpu_xcp.h" 110 #include "amdgpu_seq64.h" 111 #include "amdgpu_reg_state.h" 112 #include "amdgpu_userq.h" 113 #include "amdgpu_eviction_fence.h" 114 #include "amdgpu_ip.h" 115 #if defined(CONFIG_DRM_AMD_ISP) 116 #include "amdgpu_isp.h" 117 #endif 118 119 #define MAX_GPU_INSTANCE 64 120 121 #define GFX_SLICE_PERIOD_MS 250 122 123 struct amdgpu_gpu_instance { 124 struct amdgpu_device *adev; 125 int mgpu_fan_enabled; 126 }; 127 128 struct amdgpu_mgpu_info { 129 struct amdgpu_gpu_instance gpu_ins[MAX_GPU_INSTANCE]; 130 struct mutex mutex; 131 uint32_t num_gpu; 132 uint32_t num_dgpu; 133 uint32_t num_apu; 134 }; 135 136 enum amdgpu_ss { 137 AMDGPU_SS_DRV_LOAD, 138 AMDGPU_SS_DEV_D0, 139 AMDGPU_SS_DEV_D3, 140 AMDGPU_SS_DRV_UNLOAD 141 }; 142 143 struct amdgpu_hwip_reg_entry { 144 u32 hwip; 145 u32 inst; 146 u32 seg; 147 u32 reg_offset; 148 const char *reg_name; 149 }; 150 151 struct amdgpu_watchdog_timer { 152 bool timeout_fatal_disable; 153 uint32_t period; /* maxCycles = (1 << period), the number of cycles before a timeout */ 154 }; 155 156 #define AMDGPU_MAX_TIMEOUT_PARAM_LENGTH 256 157 158 /* 159 * Modules parameters. 160 */ 161 extern int amdgpu_modeset; 162 extern unsigned int amdgpu_vram_limit; 163 extern int amdgpu_vis_vram_limit; 164 extern int amdgpu_gart_size; 165 extern int amdgpu_gtt_size; 166 extern int amdgpu_moverate; 167 extern int amdgpu_audio; 168 extern int amdgpu_disp_priority; 169 extern int amdgpu_hw_i2c; 170 extern int amdgpu_pcie_gen2; 171 extern int amdgpu_msi; 172 extern char amdgpu_lockup_timeout[AMDGPU_MAX_TIMEOUT_PARAM_LENGTH]; 173 extern int amdgpu_dpm; 174 extern int amdgpu_fw_load_type; 175 extern int amdgpu_aspm; 176 extern int amdgpu_runtime_pm; 177 extern uint amdgpu_ip_block_mask; 178 extern int amdgpu_bapm; 179 extern int amdgpu_deep_color; 180 extern int amdgpu_vm_size; 181 extern int amdgpu_vm_block_size; 182 extern int amdgpu_vm_fragment_size; 183 extern int amdgpu_vm_fault_stop; 184 extern int amdgpu_vm_debug; 185 extern int amdgpu_vm_update_mode; 186 extern int amdgpu_exp_hw_support; 187 extern int amdgpu_dc; 188 extern int amdgpu_sched_jobs; 189 extern int amdgpu_sched_hw_submission; 190 extern uint amdgpu_pcie_gen_cap; 191 extern uint amdgpu_pcie_lane_cap; 192 extern u64 amdgpu_cg_mask; 193 extern uint amdgpu_pg_mask; 194 extern uint amdgpu_sdma_phase_quantum; 195 extern char *amdgpu_disable_cu; 196 extern char *amdgpu_virtual_display; 197 extern uint amdgpu_pp_feature_mask; 198 extern uint amdgpu_force_long_training; 199 extern int amdgpu_lbpw; 200 extern int amdgpu_compute_multipipe; 201 extern int amdgpu_gpu_recovery; 202 extern int amdgpu_emu_mode; 203 extern uint amdgpu_smu_memory_pool_size; 204 extern int amdgpu_smu_pptable_id; 205 extern uint amdgpu_dc_feature_mask; 206 extern uint amdgpu_freesync_vid_mode; 207 extern uint amdgpu_dc_debug_mask; 208 extern uint amdgpu_dc_visual_confirm; 209 extern int amdgpu_dm_abm_level; 210 extern int amdgpu_backlight; 211 extern int amdgpu_damage_clips; 212 extern struct amdgpu_mgpu_info mgpu_info; 213 extern int amdgpu_ras_enable; 214 extern uint amdgpu_ras_mask; 215 extern int amdgpu_bad_page_threshold; 216 extern bool amdgpu_ignore_bad_page_threshold; 217 extern struct amdgpu_watchdog_timer amdgpu_watchdog_timer; 218 extern int amdgpu_async_gfx_ring; 219 extern int amdgpu_mcbp; 220 extern int amdgpu_discovery; 221 extern int amdgpu_mes_log_enable; 222 extern int amdgpu_uni_mes; 223 extern int amdgpu_noretry; 224 extern int amdgpu_force_asic_type; 225 extern int amdgpu_smartshift_bias; 226 extern int amdgpu_use_xgmi_p2p; 227 extern int amdgpu_mtype_local; 228 extern int amdgpu_enforce_isolation; 229 #ifdef CONFIG_HSA_AMD 230 extern int sched_policy; 231 extern bool debug_evictions; 232 extern bool no_system_mem_limit; 233 extern int halt_if_hws_hang; 234 extern uint amdgpu_svm_default_granularity; 235 #else 236 static const int __maybe_unused sched_policy = KFD_SCHED_POLICY_HWS; 237 static const bool __maybe_unused debug_evictions; /* = false */ 238 static const bool __maybe_unused no_system_mem_limit; 239 static const int __maybe_unused halt_if_hws_hang; 240 #endif 241 #ifdef CONFIG_HSA_AMD_P2P 242 extern bool pcie_p2p; 243 #endif 244 245 extern int amdgpu_tmz; 246 extern int amdgpu_reset_method; 247 248 #ifdef CONFIG_DRM_AMDGPU_SI 249 extern int amdgpu_si_support; 250 #endif 251 #ifdef CONFIG_DRM_AMDGPU_CIK 252 extern int amdgpu_cik_support; 253 #endif 254 extern int amdgpu_num_kcq; 255 256 #define AMDGPU_VCNFW_LOG_SIZE (32 * 1024) 257 #define AMDGPU_UMSCHFW_LOG_SIZE (32 * 1024) 258 extern int amdgpu_vcnfw_log; 259 extern int amdgpu_sg_display; 260 extern int amdgpu_umsch_mm; 261 extern int amdgpu_seamless; 262 extern int amdgpu_umsch_mm_fwlog; 263 264 extern int amdgpu_user_partt_mode; 265 extern int amdgpu_agp; 266 extern int amdgpu_rebar; 267 268 extern int amdgpu_wbrf; 269 extern int amdgpu_user_queue; 270 271 extern uint amdgpu_hdmi_hpd_debounce_delay_ms; 272 273 #define AMDGPU_VM_MAX_NUM_CTX 4096 274 #define AMDGPU_SG_THRESHOLD (256*1024*1024) 275 #define AMDGPU_WAIT_IDLE_TIMEOUT_IN_MS 3000 276 #define AMDGPU_MAX_USEC_TIMEOUT 100000 /* 100 ms */ 277 #define AMDGPU_FENCE_JIFFIES_TIMEOUT (HZ / 2) 278 #define AMDGPU_DEBUGFS_MAX_COMPONENTS 32 279 #define AMDGPUFB_CONN_LIMIT 4 280 #define AMDGPU_BIOS_NUM_SCRATCH 16 281 282 #define AMDGPU_VBIOS_VGA_ALLOCATION (9 * 1024 * 1024) /* reserve 8MB for vga emulator and 1 MB for FB */ 283 284 /* hard reset data */ 285 #define AMDGPU_ASIC_RESET_DATA 0x39d5e86b 286 287 /* reset flags */ 288 #define AMDGPU_RESET_GFX (1 << 0) 289 #define AMDGPU_RESET_COMPUTE (1 << 1) 290 #define AMDGPU_RESET_DMA (1 << 2) 291 #define AMDGPU_RESET_CP (1 << 3) 292 #define AMDGPU_RESET_GRBM (1 << 4) 293 #define AMDGPU_RESET_DMA1 (1 << 5) 294 #define AMDGPU_RESET_RLC (1 << 6) 295 #define AMDGPU_RESET_SEM (1 << 7) 296 #define AMDGPU_RESET_IH (1 << 8) 297 #define AMDGPU_RESET_VMC (1 << 9) 298 #define AMDGPU_RESET_MC (1 << 10) 299 #define AMDGPU_RESET_DISPLAY (1 << 11) 300 #define AMDGPU_RESET_UVD (1 << 12) 301 #define AMDGPU_RESET_VCE (1 << 13) 302 #define AMDGPU_RESET_VCE1 (1 << 14) 303 304 /* reset mask */ 305 #define AMDGPU_RESET_TYPE_FULL (1 << 0) /* full adapter reset, mode1/mode2/BACO/etc. */ 306 #define AMDGPU_RESET_TYPE_SOFT_RESET (1 << 1) /* IP level soft reset */ 307 #define AMDGPU_RESET_TYPE_PER_QUEUE (1 << 2) /* per queue */ 308 #define AMDGPU_RESET_TYPE_PER_PIPE (1 << 3) /* per pipe */ 309 310 /* max cursor sizes (in pixels) */ 311 #define CIK_CURSOR_WIDTH 128 312 #define CIK_CURSOR_HEIGHT 128 313 314 /* smart shift bias level limits */ 315 #define AMDGPU_SMARTSHIFT_MAX_BIAS (100) 316 #define AMDGPU_SMARTSHIFT_MIN_BIAS (-100) 317 318 /* Extra time delay(in ms) to eliminate the influence of temperature momentary fluctuation */ 319 #define AMDGPU_SWCTF_EXTRA_DELAY 50 320 321 struct amdgpu_xcp_mgr; 322 struct amdgpu_device; 323 struct amdgpu_irq_src; 324 struct amdgpu_fpriv; 325 struct amdgpu_bo_va_mapping; 326 struct kfd_vm_fault_info; 327 struct amdgpu_hive_info; 328 struct amdgpu_reset_context; 329 struct amdgpu_reset_control; 330 struct amdgpu_coredump_info; 331 332 enum amdgpu_cp_irq { 333 AMDGPU_CP_IRQ_GFX_ME0_PIPE0_EOP = 0, 334 AMDGPU_CP_IRQ_GFX_ME0_PIPE1_EOP, 335 AMDGPU_CP_IRQ_COMPUTE_MEC1_PIPE0_EOP, 336 AMDGPU_CP_IRQ_COMPUTE_MEC1_PIPE1_EOP, 337 AMDGPU_CP_IRQ_COMPUTE_MEC1_PIPE2_EOP, 338 AMDGPU_CP_IRQ_COMPUTE_MEC1_PIPE3_EOP, 339 AMDGPU_CP_IRQ_COMPUTE_MEC2_PIPE0_EOP, 340 AMDGPU_CP_IRQ_COMPUTE_MEC2_PIPE1_EOP, 341 AMDGPU_CP_IRQ_COMPUTE_MEC2_PIPE2_EOP, 342 AMDGPU_CP_IRQ_COMPUTE_MEC2_PIPE3_EOP, 343 344 AMDGPU_CP_IRQ_LAST 345 }; 346 347 enum amdgpu_thermal_irq { 348 AMDGPU_THERMAL_IRQ_LOW_TO_HIGH = 0, 349 AMDGPU_THERMAL_IRQ_HIGH_TO_LOW, 350 351 AMDGPU_THERMAL_IRQ_LAST 352 }; 353 354 enum amdgpu_kiq_irq { 355 AMDGPU_CP_KIQ_IRQ_DRIVER0 = 0, 356 AMDGPU_CP_KIQ_IRQ_LAST 357 }; 358 #define MAX_KIQ_REG_WAIT 5000 /* in usecs, 5ms */ 359 #define MAX_KIQ_REG_BAILOUT_INTERVAL 5 /* in msecs, 5ms */ 360 #define MAX_KIQ_REG_TRY 1000 361 362 /* 363 * BIOS. 364 */ 365 bool amdgpu_get_bios(struct amdgpu_device *adev); 366 bool amdgpu_read_bios(struct amdgpu_device *adev); 367 bool amdgpu_soc15_read_bios_from_rom(struct amdgpu_device *adev, 368 u8 *bios, u32 length_bytes); 369 void amdgpu_bios_release(struct amdgpu_device *adev); 370 /* 371 * Clocks 372 */ 373 374 #define AMDGPU_MAX_PPLL 3 375 376 struct amdgpu_clock { 377 struct amdgpu_pll ppll[AMDGPU_MAX_PPLL]; 378 struct amdgpu_pll spll; 379 struct amdgpu_pll mpll; 380 /* 10 Khz units */ 381 uint32_t default_mclk; 382 uint32_t default_sclk; 383 uint32_t default_dispclk; 384 uint32_t dp_extclk; 385 uint32_t max_pixel_clock; 386 }; 387 388 /* sub-allocation manager, it has to be protected by another lock. 389 * By conception this is an helper for other part of the driver 390 * like the indirect buffer or semaphore, which both have their 391 * locking. 392 * 393 * Principe is simple, we keep a list of sub allocation in offset 394 * order (first entry has offset == 0, last entry has the highest 395 * offset). 396 * 397 * When allocating new object we first check if there is room at 398 * the end total_size - (last_object_offset + last_object_size) >= 399 * alloc_size. If so we allocate new object there. 400 * 401 * When there is not enough room at the end, we start waiting for 402 * each sub object until we reach object_offset+object_size >= 403 * alloc_size, this object then become the sub object we return. 404 * 405 * Alignment can't be bigger than page size. 406 * 407 * Hole are not considered for allocation to keep things simple. 408 * Assumption is that there won't be hole (all object on same 409 * alignment). 410 */ 411 412 struct amdgpu_sa_manager { 413 struct drm_suballoc_manager base; 414 struct amdgpu_bo *bo; 415 uint64_t gpu_addr; 416 void *cpu_ptr; 417 }; 418 419 /* 420 * IRQS. 421 */ 422 423 struct amdgpu_flip_work { 424 struct delayed_work flip_work; 425 struct work_struct unpin_work; 426 struct amdgpu_device *adev; 427 int crtc_id; 428 u32 target_vblank; 429 uint64_t base; 430 struct drm_pending_vblank_event *event; 431 struct amdgpu_bo *old_abo; 432 unsigned shared_count; 433 struct dma_fence **shared; 434 struct dma_fence_cb cb; 435 bool async; 436 }; 437 438 /* 439 * file private structure 440 */ 441 442 struct amdgpu_fpriv { 443 struct amdgpu_vm vm; 444 struct amdgpu_bo_va *prt_va; 445 struct amdgpu_bo_va *csa_va; 446 struct amdgpu_bo_va *seq64_va; 447 struct mutex bo_list_lock; 448 struct idr bo_list_handles; 449 struct amdgpu_ctx_mgr ctx_mgr; 450 struct amdgpu_userq_mgr userq_mgr; 451 452 /* Eviction fence infra */ 453 struct amdgpu_eviction_fence_mgr evf_mgr; 454 455 /** GPU partition selection */ 456 uint32_t xcp_id; 457 }; 458 459 int amdgpu_file_to_fpriv(struct file *filp, struct amdgpu_fpriv **fpriv); 460 461 /* 462 * Writeback 463 */ 464 #define AMDGPU_MAX_WB 1024 /* Reserve at most 1024 WB slots for amdgpu-owned rings. */ 465 466 /** 467 * struct amdgpu_wb - This struct is used for small GPU memory allocation. 468 * 469 * This struct is used to allocate a small amount of GPU memory that can be 470 * used to shadow certain states into the memory. This is especially useful for 471 * providing easy CPU access to some states without requiring register access 472 * (e.g., if some block is power gated, reading register may be problematic). 473 * 474 * Note: the term writeback was initially used because many of the amdgpu 475 * components had some level of writeback memory, and this struct initially 476 * described those components. 477 */ 478 struct amdgpu_wb { 479 480 /** 481 * @wb_obj: 482 * 483 * Buffer Object used for the writeback memory. 484 */ 485 struct amdgpu_bo *wb_obj; 486 487 /** 488 * @wb: 489 * 490 * Pointer to the first writeback slot. In terms of CPU address 491 * this value can be accessed directly by using the offset as an index. 492 * For the GPU address, it is necessary to use gpu_addr and the offset. 493 */ 494 uint32_t *wb; 495 496 /** 497 * @gpu_addr: 498 * 499 * Writeback base address in the GPU. 500 */ 501 uint64_t gpu_addr; 502 503 /** 504 * @num_wb: 505 * 506 * Number of writeback slots reserved for amdgpu. 507 */ 508 u32 num_wb; 509 510 /** 511 * @used: 512 * 513 * Track the writeback slot already used. 514 */ 515 unsigned long used[DIV_ROUND_UP(AMDGPU_MAX_WB, BITS_PER_LONG)]; 516 517 /** 518 * @lock: 519 * 520 * Protects read and write of the used field array. 521 */ 522 spinlock_t lock; 523 }; 524 525 int amdgpu_device_wb_get(struct amdgpu_device *adev, u32 *wb); 526 void amdgpu_device_wb_free(struct amdgpu_device *adev, u32 wb); 527 528 /* 529 * Benchmarking 530 */ 531 int amdgpu_benchmark(struct amdgpu_device *adev, int test_number); 532 533 /* 534 * ASIC specific register table accessible by UMD 535 */ 536 struct amdgpu_allowed_register_entry { 537 uint32_t reg_offset; 538 bool grbm_indexed; 539 }; 540 541 struct amdgpu_video_codec_info { 542 u32 codec_type; 543 u32 max_width; 544 u32 max_height; 545 u32 max_pixels_per_frame; 546 u32 max_level; 547 }; 548 549 #define codec_info_build(type, width, height, level) \ 550 .codec_type = type,\ 551 .max_width = width,\ 552 .max_height = height,\ 553 .max_pixels_per_frame = height * width,\ 554 .max_level = level, 555 556 struct amdgpu_video_codecs { 557 const u32 codec_count; 558 const struct amdgpu_video_codec_info *codec_array; 559 }; 560 561 /* 562 * ASIC specific functions. 563 */ 564 struct amdgpu_asic_funcs { 565 bool (*read_disabled_bios)(struct amdgpu_device *adev); 566 bool (*read_bios_from_rom)(struct amdgpu_device *adev, 567 u8 *bios, u32 length_bytes); 568 int (*read_register)(struct amdgpu_device *adev, u32 se_num, 569 u32 sh_num, u32 reg_offset, u32 *value); 570 void (*set_vga_state)(struct amdgpu_device *adev, bool state); 571 int (*reset)(struct amdgpu_device *adev); 572 enum amd_reset_method (*reset_method)(struct amdgpu_device *adev); 573 /* get the reference clock */ 574 u32 (*get_xclk)(struct amdgpu_device *adev); 575 /* MM block clocks */ 576 int (*set_uvd_clocks)(struct amdgpu_device *adev, u32 vclk, u32 dclk); 577 int (*set_vce_clocks)(struct amdgpu_device *adev, u32 evclk, u32 ecclk); 578 /* static power management */ 579 int (*get_pcie_lanes)(struct amdgpu_device *adev); 580 void (*set_pcie_lanes)(struct amdgpu_device *adev, int lanes); 581 /* get config memsize register */ 582 u32 (*get_config_memsize)(struct amdgpu_device *adev); 583 /* flush hdp write queue */ 584 void (*flush_hdp)(struct amdgpu_device *adev, struct amdgpu_ring *ring); 585 /* invalidate hdp read cache */ 586 void (*invalidate_hdp)(struct amdgpu_device *adev, 587 struct amdgpu_ring *ring); 588 /* check if the asic needs a full reset of if soft reset will work */ 589 bool (*need_full_reset)(struct amdgpu_device *adev); 590 /* initialize doorbell layout for specific asic*/ 591 void (*init_doorbell_index)(struct amdgpu_device *adev); 592 /* PCIe bandwidth usage */ 593 void (*get_pcie_usage)(struct amdgpu_device *adev, uint64_t *count0, 594 uint64_t *count1); 595 /* do we need to reset the asic at init time (e.g., kexec) */ 596 bool (*need_reset_on_init)(struct amdgpu_device *adev); 597 /* PCIe replay counter */ 598 uint64_t (*get_pcie_replay_count)(struct amdgpu_device *adev); 599 /* device supports BACO */ 600 int (*supports_baco)(struct amdgpu_device *adev); 601 /* pre asic_init quirks */ 602 void (*pre_asic_init)(struct amdgpu_device *adev); 603 /* enter/exit umd stable pstate */ 604 int (*update_umd_stable_pstate)(struct amdgpu_device *adev, bool enter); 605 /* query video codecs */ 606 int (*query_video_codecs)(struct amdgpu_device *adev, bool encode, 607 const struct amdgpu_video_codecs **codecs); 608 /* encode "> 32bits" smn addressing */ 609 u64 (*encode_ext_smn_addressing)(int ext_id); 610 611 ssize_t (*get_reg_state)(struct amdgpu_device *adev, 612 enum amdgpu_reg_state reg_state, void *buf, 613 size_t max_size); 614 }; 615 616 /* 617 * IOCTL. 618 */ 619 int amdgpu_bo_list_ioctl(struct drm_device *dev, void *data, 620 struct drm_file *filp); 621 622 int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp); 623 int amdgpu_cs_fence_to_handle_ioctl(struct drm_device *dev, void *data, 624 struct drm_file *filp); 625 int amdgpu_cs_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *filp); 626 int amdgpu_cs_wait_fences_ioctl(struct drm_device *dev, void *data, 627 struct drm_file *filp); 628 629 /* VRAM scratch page for HDP bug, default vram page */ 630 struct amdgpu_mem_scratch { 631 struct amdgpu_bo *robj; 632 uint32_t *ptr; 633 u64 gpu_addr; 634 }; 635 636 /* 637 * CGS 638 */ 639 struct cgs_device *amdgpu_cgs_create_device(struct amdgpu_device *adev); 640 void amdgpu_cgs_destroy_device(struct cgs_device *cgs_device); 641 642 /* 643 * Core structure, functions and helpers. 644 */ 645 struct amdgpu_mmio_remap { 646 u32 reg_offset; 647 resource_size_t bus_addr; 648 struct amdgpu_bo *bo; 649 }; 650 651 enum amdgpu_uid_type { 652 AMDGPU_UID_TYPE_XCD, 653 AMDGPU_UID_TYPE_AID, 654 AMDGPU_UID_TYPE_SOC, 655 AMDGPU_UID_TYPE_MID, 656 AMDGPU_UID_TYPE_MAX 657 }; 658 659 #define AMDGPU_UID_INST_MAX 8 /* max number of instances for each UID type */ 660 661 struct amdgpu_uid { 662 uint64_t uid[AMDGPU_UID_TYPE_MAX][AMDGPU_UID_INST_MAX]; 663 struct amdgpu_device *adev; 664 }; 665 666 #define MAX_UMA_OPTION_NAME 28 667 #define MAX_UMA_OPTION_ENTRIES 19 668 669 #define AMDGPU_UMA_FLAG_AUTO BIT(1) 670 #define AMDGPU_UMA_FLAG_CUSTOM BIT(0) 671 672 /** 673 * struct amdgpu_uma_carveout_option - single UMA carveout option 674 * @name: Name of the carveout option 675 * @memory_carved_mb: Amount of memory carved in MB 676 * @flags: ATCS flags supported by this option 677 */ 678 struct amdgpu_uma_carveout_option { 679 char name[MAX_UMA_OPTION_NAME]; 680 uint32_t memory_carved_mb; 681 uint8_t flags; 682 }; 683 684 /** 685 * struct amdgpu_uma_carveout_info - table of available UMA carveout options 686 * @num_entries: Number of available options 687 * @uma_option_index: The index of the option currently applied 688 * @update_lock: Lock to serialize changes to the option 689 * @entries: The array of carveout options 690 */ 691 struct amdgpu_uma_carveout_info { 692 uint8_t num_entries; 693 uint8_t uma_option_index; 694 struct mutex update_lock; 695 struct amdgpu_uma_carveout_option entries[MAX_UMA_OPTION_ENTRIES]; 696 }; 697 698 struct amd_powerplay { 699 void *pp_handle; 700 const struct amd_pm_funcs *pp_funcs; 701 }; 702 703 /* polaris10 kickers */ 704 #define ASICID_IS_P20(did, rid) (((did == 0x67DF) && \ 705 ((rid == 0xE3) || \ 706 (rid == 0xE4) || \ 707 (rid == 0xE5) || \ 708 (rid == 0xE7) || \ 709 (rid == 0xEF))) || \ 710 ((did == 0x6FDF) && \ 711 ((rid == 0xE7) || \ 712 (rid == 0xEF) || \ 713 (rid == 0xFF)))) 714 715 #define ASICID_IS_P30(did, rid) ((did == 0x67DF) && \ 716 ((rid == 0xE1) || \ 717 (rid == 0xF7))) 718 719 /* polaris11 kickers */ 720 #define ASICID_IS_P21(did, rid) (((did == 0x67EF) && \ 721 ((rid == 0xE0) || \ 722 (rid == 0xE5))) || \ 723 ((did == 0x67FF) && \ 724 ((rid == 0xCF) || \ 725 (rid == 0xEF) || \ 726 (rid == 0xFF)))) 727 728 #define ASICID_IS_P31(did, rid) ((did == 0x67EF) && \ 729 ((rid == 0xE2))) 730 731 /* polaris12 kickers */ 732 #define ASICID_IS_P23(did, rid) (((did == 0x6987) && \ 733 ((rid == 0xC0) || \ 734 (rid == 0xC1) || \ 735 (rid == 0xC3) || \ 736 (rid == 0xC7))) || \ 737 ((did == 0x6981) && \ 738 ((rid == 0x00) || \ 739 (rid == 0x01) || \ 740 (rid == 0x10)))) 741 742 enum amdgpu_mqd_update_flag { 743 AMDGPU_UPDATE_FLAG_DBG_WA_ENABLE = 1, 744 AMDGPU_UPDATE_FLAG_DBG_WA_DISABLE = 2, 745 AMDGPU_UPDATE_FLAG_IS_GWS = 4, /* quirk for gfx9 IP */ 746 }; 747 748 struct amdgpu_mqd_prop { 749 uint64_t mqd_gpu_addr; 750 uint64_t hqd_base_gpu_addr; 751 uint64_t rptr_gpu_addr; 752 uint64_t wptr_gpu_addr; 753 uint32_t queue_size; 754 bool use_doorbell; 755 uint32_t doorbell_index; 756 uint64_t eop_gpu_addr; 757 uint32_t hqd_pipe_priority; 758 uint32_t hqd_queue_priority; 759 uint32_t mqd_stride_size; 760 bool allow_tunneling; 761 bool hqd_active; 762 uint64_t shadow_addr; 763 uint64_t gds_bkup_addr; 764 uint64_t csa_addr; 765 uint64_t fence_address; 766 bool tmz_queue; 767 bool kernel_queue; 768 uint32_t *cu_mask; 769 uint32_t cu_mask_count; 770 uint32_t cu_flags; 771 bool is_user_cu_masked; 772 }; 773 774 struct amdgpu_mqd { 775 unsigned mqd_size; 776 int (*init_mqd)(struct amdgpu_device *adev, void *mqd, 777 struct amdgpu_mqd_prop *p); 778 }; 779 780 struct amdgpu_pcie_reset_ctx { 781 bool in_link_reset; 782 bool occurs_dpc; 783 bool audio_suspended; 784 struct pci_dev *swus; 785 struct pci_saved_state *swus_pcistate; 786 struct pci_saved_state *swds_pcistate; 787 }; 788 789 /* 790 * Custom Init levels could be defined for different situations where a full 791 * initialization of all hardware blocks are not expected. Sample cases are 792 * custom init sequences after resume after S0i3/S3, reset on initialization, 793 * partial reset of blocks etc. Presently, this defines only two levels. Levels 794 * are described in corresponding struct definitions - amdgpu_init_default, 795 * amdgpu_init_minimal_xgmi. 796 */ 797 enum amdgpu_init_lvl_id { 798 AMDGPU_INIT_LEVEL_DEFAULT, 799 AMDGPU_INIT_LEVEL_MINIMAL_XGMI, 800 AMDGPU_INIT_LEVEL_RESET_RECOVERY, 801 }; 802 803 struct amdgpu_init_level { 804 enum amdgpu_init_lvl_id level; 805 uint32_t hwini_ip_block_mask; 806 }; 807 808 #define AMDGPU_RESET_MAGIC_NUM 64 809 #define AMDGPU_MAX_DF_PERFMONS 4 810 struct amdgpu_reset_domain; 811 struct amdgpu_fru_info; 812 813 enum amdgpu_enforce_isolation_mode { 814 AMDGPU_ENFORCE_ISOLATION_DISABLE = 0, 815 AMDGPU_ENFORCE_ISOLATION_ENABLE = 1, 816 AMDGPU_ENFORCE_ISOLATION_ENABLE_LEGACY = 2, 817 AMDGPU_ENFORCE_ISOLATION_NO_CLEANER_SHADER = 3, 818 }; 819 820 struct amdgpu_device { 821 struct device *dev; 822 struct pci_dev *pdev; 823 struct drm_device ddev; 824 825 #ifdef CONFIG_DRM_AMD_ACP 826 struct amdgpu_acp acp; 827 #endif 828 struct amdgpu_hive_info *hive; 829 struct amdgpu_xcp_mgr *xcp_mgr; 830 /* ASIC */ 831 enum amd_asic_type asic_type; 832 uint32_t family; 833 uint32_t rev_id; 834 uint32_t external_rev_id; 835 unsigned long flags; 836 unsigned long apu_flags; 837 int usec_timeout; 838 const struct amdgpu_asic_funcs *asic_funcs; 839 bool shutdown; 840 bool need_swiotlb; 841 bool accel_working; 842 struct notifier_block acpi_nb; 843 struct notifier_block pm_nb; 844 struct amdgpu_i2c_chan *i2c_bus[AMDGPU_MAX_I2C_BUS]; 845 struct debugfs_blob_wrapper debugfs_vbios_blob; 846 struct mutex srbm_mutex; 847 /* GRBM index mutex. Protects concurrent access to GRBM index */ 848 struct mutex grbm_idx_mutex; 849 struct dev_pm_domain vga_pm_domain; 850 bool have_disp_power_ref; 851 bool have_atomics_support; 852 853 /* BIOS */ 854 bool is_atom_fw; 855 uint8_t *bios; 856 uint32_t bios_size; 857 uint32_t bios_scratch_reg_offset; 858 uint32_t bios_scratch[AMDGPU_BIOS_NUM_SCRATCH]; 859 860 /* Register/doorbell mmio */ 861 resource_size_t rmmio_base; 862 resource_size_t rmmio_size; 863 void __iomem *rmmio; 864 /* protects concurrent MM_INDEX/DATA based register access */ 865 spinlock_t mmio_idx_lock; 866 struct amdgpu_mmio_remap rmmio_remap; 867 /* Indirect register access blocks */ 868 struct amdgpu_reg_access reg; 869 struct amdgpu_doorbell doorbell; 870 871 /* clock/pll info */ 872 struct amdgpu_clock clock; 873 874 /* MC */ 875 struct amdgpu_gmc gmc; 876 struct amdgpu_gart gart; 877 dma_addr_t dummy_page_addr; 878 struct amdgpu_vm_manager vm_manager; 879 struct amdgpu_vmhub vmhub[AMDGPU_MAX_VMHUBS]; 880 DECLARE_BITMAP(vmhubs_mask, AMDGPU_MAX_VMHUBS); 881 882 /* memory management */ 883 struct amdgpu_mman mman; 884 struct amdgpu_mem_scratch mem_scratch; 885 struct amdgpu_wb wb; 886 atomic64_t num_bytes_moved; 887 atomic64_t num_evictions; 888 atomic64_t num_vram_cpu_page_faults; 889 atomic_t gpu_reset_counter; 890 atomic_t vram_lost_counter; 891 892 /* data for buffer migration throttling */ 893 struct { 894 spinlock_t lock; 895 s64 last_update_us; 896 s64 accum_us; /* accumulated microseconds */ 897 s64 accum_us_vis; /* for visible VRAM */ 898 u32 log2_max_MBps; 899 } mm_stats; 900 901 /* discovery*/ 902 struct amdgpu_discovery_info discovery; 903 904 /* display */ 905 bool enable_virtual_display; 906 struct amdgpu_vkms_output *amdgpu_vkms_output; 907 struct amdgpu_mode_info mode_info; 908 /* For pre-DCE11. DCE11 and later are in "struct amdgpu_device->dm" */ 909 struct delayed_work hotplug_work; 910 struct amdgpu_irq_src crtc_irq; 911 struct amdgpu_irq_src vline0_irq; 912 struct amdgpu_irq_src vupdate_irq; 913 struct amdgpu_irq_src pageflip_irq; 914 struct amdgpu_irq_src hpd_irq; 915 struct amdgpu_irq_src dmub_trace_irq; 916 struct amdgpu_irq_src dmub_outbox_irq; 917 918 /* rings */ 919 u64 fence_context; 920 unsigned num_rings; 921 struct amdgpu_ring *rings[AMDGPU_MAX_RINGS]; 922 struct dma_fence __rcu *gang_submit; 923 bool ib_pool_ready; 924 struct amdgpu_sa_manager ib_pools[AMDGPU_IB_POOL_MAX]; 925 struct amdgpu_sched gpu_sched[AMDGPU_HW_IP_NUM][AMDGPU_RING_PRIO_MAX]; 926 927 /* interrupts */ 928 struct amdgpu_irq irq; 929 930 /* powerplay */ 931 struct amd_powerplay powerplay; 932 struct amdgpu_pm pm; 933 u64 cg_flags; 934 u32 pg_flags; 935 936 /* nbio */ 937 struct amdgpu_nbio nbio; 938 939 /* hdp */ 940 struct amdgpu_hdp hdp; 941 942 /* smuio */ 943 struct amdgpu_smuio smuio; 944 945 /* mmhub */ 946 struct amdgpu_mmhub mmhub; 947 948 /* gfxhub */ 949 struct amdgpu_gfxhub gfxhub; 950 951 /* gfx */ 952 struct amdgpu_gfx gfx; 953 954 /* sdma */ 955 struct amdgpu_sdma sdma; 956 957 /* lsdma */ 958 struct amdgpu_lsdma lsdma; 959 960 /* uvd */ 961 struct amdgpu_uvd uvd; 962 963 /* vce */ 964 struct amdgpu_vce vce; 965 966 /* vcn */ 967 struct amdgpu_vcn vcn; 968 969 /* jpeg */ 970 struct amdgpu_jpeg jpeg; 971 972 /* vpe */ 973 struct amdgpu_vpe vpe; 974 975 /* umsch */ 976 struct amdgpu_umsch_mm umsch_mm; 977 bool enable_umsch_mm; 978 979 /* firmwares */ 980 struct amdgpu_firmware firmware; 981 982 /* PSP */ 983 struct psp_context psp; 984 985 /* GDS */ 986 struct amdgpu_gds gds; 987 988 /* for userq and VM fences */ 989 struct amdgpu_seq64 seq64; 990 991 /* UMC */ 992 struct amdgpu_umc umc; 993 994 /* display related functionality */ 995 struct amdgpu_display_manager dm; 996 997 #if defined(CONFIG_DRM_AMD_ISP) 998 /* isp */ 999 struct amdgpu_isp isp; 1000 #endif 1001 1002 /* mes */ 1003 bool enable_mes; 1004 bool enable_mes_kiq; 1005 bool enable_uni_mes; 1006 struct amdgpu_mes mes; 1007 struct amdgpu_mqd mqds[AMDGPU_HW_IP_NUM]; 1008 const struct amdgpu_userq_funcs *userq_funcs[AMDGPU_HW_IP_NUM]; 1009 1010 /** 1011 * @userq_doorbell_xa: Global user queue map (doorbell index → queue) 1012 * Key: doorbell_index (unique global identifier for the queue) 1013 * Value: struct amdgpu_usermode_queue 1014 */ 1015 struct xarray userq_doorbell_xa; 1016 1017 /* df */ 1018 struct amdgpu_df df; 1019 1020 /* MCA */ 1021 struct amdgpu_mca mca; 1022 1023 /* ACA */ 1024 struct amdgpu_aca aca; 1025 1026 /* CPER */ 1027 struct amdgpu_cper cper; 1028 1029 struct amdgpu_ip_block ip_blocks[AMDGPU_MAX_IP_NUM]; 1030 uint32_t harvest_ip_mask; 1031 int num_ip_blocks; 1032 struct mutex mn_lock; 1033 DECLARE_HASHTABLE(mn_hash, 7); 1034 1035 /* tracking pinned memory */ 1036 atomic64_t vram_pin_size; 1037 atomic64_t visible_pin_size; 1038 atomic64_t gart_pin_size; 1039 1040 /* soc15 register offset based on ip, instance and segment */ 1041 uint32_t *reg_offset[MAX_HWIP][HWIP_MAX_INSTANCE]; 1042 struct amdgpu_ip_map_info ip_map; 1043 1044 /* delayed work_func for deferring clockgating during resume */ 1045 struct delayed_work delayed_init_work; 1046 1047 struct amdgpu_virt virt; 1048 1049 /* record hw reset is performed */ 1050 bool has_hw_reset; 1051 u8 reset_magic[AMDGPU_RESET_MAGIC_NUM]; 1052 1053 /* s3/s4 mask */ 1054 bool in_suspend; 1055 bool in_s3; 1056 bool in_s4; 1057 bool in_s0ix; 1058 suspend_state_t last_suspend_state; 1059 1060 enum pp_mp1_state mp1_state; 1061 struct amdgpu_doorbell_index doorbell_index; 1062 1063 struct mutex notifier_lock; 1064 1065 int asic_reset_res; 1066 struct work_struct xgmi_reset_work; 1067 struct list_head reset_list; 1068 1069 long gfx_timeout; 1070 long sdma_timeout; 1071 long video_timeout; 1072 long compute_timeout; 1073 long psp_timeout; 1074 1075 uint64_t unique_id; 1076 uint64_t df_perfmon_config_assign_mask[AMDGPU_MAX_DF_PERFMONS]; 1077 1078 /* enable runtime pm on the device */ 1079 bool in_runpm; 1080 bool has_pr3; 1081 1082 bool ucode_sysfs_en; 1083 1084 struct amdgpu_fru_info *fru_info; 1085 atomic_t throttling_logging_enabled; 1086 struct ratelimit_state throttling_logging_rs; 1087 uint32_t ras_hw_enabled; 1088 uint32_t ras_enabled; 1089 bool ras_default_ecc_enabled; 1090 1091 bool no_hw_access; 1092 struct pci_saved_state *pci_state; 1093 pci_channel_state_t pci_channel_state; 1094 1095 struct amdgpu_pcie_reset_ctx pcie_reset_ctx; 1096 1097 /* Track auto wait count on s_barrier settings */ 1098 bool barrier_has_auto_waitcnt; 1099 1100 struct amdgpu_reset_control *reset_cntl; 1101 uint32_t ip_versions[MAX_HWIP][HWIP_MAX_INSTANCE]; 1102 1103 bool ram_is_direct_mapped; 1104 1105 struct list_head ras_list; 1106 1107 struct amdgpu_reset_domain *reset_domain; 1108 1109 #ifdef CONFIG_DEV_COREDUMP 1110 struct amdgpu_coredump_info *coredump; 1111 struct work_struct coredump_work; 1112 #endif 1113 1114 struct mutex benchmark_mutex; 1115 1116 bool scpm_enabled; 1117 uint32_t scpm_status; 1118 1119 struct work_struct reset_work; 1120 1121 bool dc_enabled; 1122 /* Mask of active clusters */ 1123 uint32_t aid_mask; 1124 1125 /* Debug */ 1126 bool debug_vm; 1127 bool debug_largebar; 1128 bool debug_disable_soft_recovery; 1129 bool debug_use_vram_fw_buf; 1130 bool debug_enable_ras_aca; 1131 bool debug_exp_resets; 1132 bool debug_disable_gpu_ring_reset; 1133 bool debug_vm_userptr; 1134 bool debug_disable_ce_logs; 1135 bool debug_enable_ce_cs; 1136 1137 /* Protection for the following isolation structure */ 1138 struct mutex enforce_isolation_mutex; 1139 enum amdgpu_enforce_isolation_mode enforce_isolation[MAX_XCP]; 1140 struct amdgpu_isolation { 1141 void *owner; 1142 struct dma_fence *spearhead; 1143 struct amdgpu_sync active; 1144 struct amdgpu_sync prev; 1145 } isolation[MAX_XCP]; 1146 1147 struct amdgpu_init_level *init_lvl; 1148 1149 /* This flag is used to determine how VRAM allocations are handled for APUs 1150 * in KFD: VRAM or GTT. 1151 */ 1152 bool apu_prefer_gtt; 1153 1154 bool userq_halt_for_enforce_isolation; 1155 struct work_struct userq_reset_work; 1156 struct amdgpu_uid *uid_info; 1157 1158 struct amdgpu_uma_carveout_info uma_info; 1159 1160 /* KFD 1161 * Must be last --ends in a flexible-array member. 1162 */ 1163 struct amdgpu_kfd_dev kfd; 1164 }; 1165 1166 /* 1167 * MES FW uses address(mqd_addr + sizeof(struct mqd) + 3*sizeof(uint32_t)) 1168 * as fence address and writes a 32 bit fence value to this address. 1169 * Driver needs to allocate at least 4 DWs extra memory in addition to 1170 * sizeof(struct mqd). Add 8 DWs and align to AMDGPU_GPU_PAGE_SIZE for safety. 1171 */ 1172 #define AMDGPU_MQD_SIZE_ALIGN(mqd_size) AMDGPU_GPU_PAGE_ALIGN(((mqd_size) + 32)) 1173 1174 static inline uint32_t amdgpu_ip_version(const struct amdgpu_device *adev, 1175 uint8_t ip, uint8_t inst) 1176 { 1177 /* This considers only major/minor/rev and ignores 1178 * subrevision/variant fields. 1179 */ 1180 return adev->ip_versions[ip][inst] & ~0xFFU; 1181 } 1182 1183 static inline uint32_t amdgpu_ip_version_full(const struct amdgpu_device *adev, 1184 uint8_t ip, uint8_t inst) 1185 { 1186 /* This returns full version - major/minor/rev/variant/subrevision */ 1187 return adev->ip_versions[ip][inst]; 1188 } 1189 1190 static inline struct amdgpu_device *drm_to_adev(struct drm_device *ddev) 1191 { 1192 return container_of(ddev, struct amdgpu_device, ddev); 1193 } 1194 1195 static inline struct drm_device *adev_to_drm(struct amdgpu_device *adev) 1196 { 1197 return &adev->ddev; 1198 } 1199 1200 static inline struct amdgpu_device *amdgpu_ttm_adev(struct ttm_device *bdev) 1201 { 1202 return container_of(bdev, struct amdgpu_device, mman.bdev); 1203 } 1204 1205 static inline bool amdgpu_is_multi_aid(struct amdgpu_device *adev) 1206 { 1207 return !!adev->aid_mask; 1208 } 1209 1210 int amdgpu_device_init(struct amdgpu_device *adev, 1211 uint32_t flags); 1212 void amdgpu_device_fini_hw(struct amdgpu_device *adev); 1213 void amdgpu_device_fini_sw(struct amdgpu_device *adev); 1214 1215 int amdgpu_gpu_wait_for_idle(struct amdgpu_device *adev); 1216 1217 void amdgpu_device_mm_access(struct amdgpu_device *adev, loff_t pos, 1218 void *buf, size_t size, bool write); 1219 size_t amdgpu_device_aper_access(struct amdgpu_device *adev, loff_t pos, 1220 void *buf, size_t size, bool write); 1221 1222 void amdgpu_device_vram_access(struct amdgpu_device *adev, loff_t pos, 1223 void *buf, size_t size, bool write); 1224 u32 amdgpu_device_get_rev_id(struct amdgpu_device *adev); 1225 bool amdgpu_device_asic_has_dc_support(struct pci_dev *pdev, 1226 enum amd_asic_type asic_type); 1227 bool amdgpu_device_has_dc_support(struct amdgpu_device *adev); 1228 1229 void amdgpu_device_set_sriov_virtual_display(struct amdgpu_device *adev); 1230 1231 int amdgpu_device_pre_asic_reset(struct amdgpu_device *adev, 1232 struct amdgpu_reset_context *reset_context); 1233 1234 int amdgpu_do_asic_reset(struct list_head *device_list_handle, 1235 struct amdgpu_reset_context *reset_context); 1236 1237 int amdgpu_device_reinit_after_reset(struct amdgpu_reset_context *reset_context); 1238 1239 int emu_soc_asic_init(struct amdgpu_device *adev); 1240 1241 /* 1242 * Registers read & write functions. 1243 */ 1244 #define AMDGPU_REGS_NO_KIQ (1<<1) 1245 #define AMDGPU_REGS_RLC (1<<2) 1246 1247 #define RREG32_NO_KIQ(reg) amdgpu_device_rreg(adev, (reg), AMDGPU_REGS_NO_KIQ) 1248 #define WREG32_NO_KIQ(reg, v) amdgpu_device_wreg(adev, (reg), (v), AMDGPU_REGS_NO_KIQ) 1249 1250 #define RREG32_KIQ(reg) amdgpu_kiq_rreg(adev, (reg), 0) 1251 #define WREG32_KIQ(reg, v) amdgpu_kiq_wreg(adev, (reg), (v), 0) 1252 1253 #define RREG8(reg) amdgpu_mm_rreg8(adev, (reg)) 1254 #define WREG8(reg, v) amdgpu_mm_wreg8(adev, (reg), (v)) 1255 1256 #define RREG32(reg) amdgpu_device_rreg(adev, (reg), 0) 1257 #define DREG32(reg) printk(KERN_INFO "REGISTER: " #reg " : 0x%08X\n", amdgpu_device_rreg(adev, (reg), 0)) 1258 #define WREG32(reg, v) amdgpu_device_wreg(adev, (reg), (v), 0) 1259 #define REG_SET(FIELD, v) (((v) << FIELD##_SHIFT) & FIELD##_MASK) 1260 #define REG_GET(FIELD, v) (((v) << FIELD##_SHIFT) & FIELD##_MASK) 1261 #define RREG32_XCC(reg, inst) amdgpu_device_xcc_rreg(adev, (reg), 0, inst) 1262 #define WREG32_XCC(reg, v, inst) amdgpu_device_xcc_wreg(adev, (reg), (v), 0, inst) 1263 #define RREG32_PCIE(reg) amdgpu_reg_pcie_rd32(adev, (reg)) 1264 #define WREG32_PCIE(reg, v) amdgpu_reg_pcie_wr32(adev, (reg), (v)) 1265 #define RREG32_PCIE_PORT(reg) amdgpu_reg_pciep_rd32(adev, (reg)) 1266 #define WREG32_PCIE_PORT(reg, v) amdgpu_reg_pciep_wr32(adev, (reg), (v)) 1267 #define RREG32_PCIE_EXT(reg) amdgpu_reg_pcie_ext_rd32(adev, (reg)) 1268 #define WREG32_PCIE_EXT(reg, v) amdgpu_reg_pcie_ext_wr32(adev, (reg), (v)) 1269 #define RREG64_PCIE(reg) amdgpu_reg_pcie_rd64(adev, (reg)) 1270 #define WREG64_PCIE(reg, v) amdgpu_reg_pcie_wr64(adev, (reg), (v)) 1271 #define RREG64_PCIE_EXT(reg) amdgpu_reg_pcie_ext_rd64(adev, (reg)) 1272 #define WREG64_PCIE_EXT(reg, v) amdgpu_reg_pcie_ext_wr64(adev, (reg), (v)) 1273 #define RREG32_SMC(reg) amdgpu_reg_smc_rd32(adev, (reg)) 1274 #define WREG32_SMC(reg, v) amdgpu_reg_smc_wr32(adev, (reg), (v)) 1275 #define RREG32_UVD_CTX(reg) amdgpu_reg_uvd_ctx_rd32(adev, (reg)) 1276 #define WREG32_UVD_CTX(reg, v) amdgpu_reg_uvd_ctx_wr32(adev, (reg), (v)) 1277 #define RREG32_DIDT(reg) amdgpu_reg_didt_rd32(adev, (reg)) 1278 #define WREG32_DIDT(reg, v) amdgpu_reg_didt_wr32(adev, (reg), (v)) 1279 #define RREG32_GC_CAC(reg) amdgpu_reg_gc_cac_rd32(adev, (reg)) 1280 #define WREG32_GC_CAC(reg, v) amdgpu_reg_gc_cac_wr32(adev, (reg), (v)) 1281 #define RREG32_SE_CAC(reg) amdgpu_reg_se_cac_rd32(adev, (reg)) 1282 #define WREG32_SE_CAC(reg, v) amdgpu_reg_se_cac_wr32(adev, (reg), (v)) 1283 #define RREG32_AUDIO_ENDPT(block, reg) \ 1284 amdgpu_reg_audio_endpt_rd32(adev, (block), (reg)) 1285 #define WREG32_AUDIO_ENDPT(block, reg, v) \ 1286 amdgpu_reg_audio_endpt_wr32(adev, (block), (reg), (v)) 1287 #define WREG32_P(reg, val, mask) \ 1288 do { \ 1289 uint32_t tmp_ = RREG32(reg); \ 1290 tmp_ &= (mask); \ 1291 tmp_ |= ((val) & ~(mask)); \ 1292 WREG32(reg, tmp_); \ 1293 } while (0) 1294 #define WREG32_AND(reg, and) WREG32_P(reg, 0, and) 1295 #define WREG32_OR(reg, or) WREG32_P(reg, or, ~(or)) 1296 #define WREG32_PLL_P(reg, val, mask) \ 1297 do { \ 1298 uint32_t tmp_ = RREG32_PLL(reg); \ 1299 tmp_ &= (mask); \ 1300 tmp_ |= ((val) & ~(mask)); \ 1301 WREG32_PLL(reg, tmp_); \ 1302 } while (0) 1303 1304 #define WREG32_SMC_P(_Reg, _Val, _Mask) \ 1305 do { \ 1306 u32 tmp = RREG32_SMC(_Reg); \ 1307 tmp &= (_Mask); \ 1308 tmp |= ((_Val) & ~(_Mask)); \ 1309 WREG32_SMC(_Reg, tmp); \ 1310 } while (0) 1311 1312 #define DREG32_SYS(sqf, adev, reg) seq_printf((sqf), #reg " : 0x%08X\n", amdgpu_device_rreg((adev), (reg), false)) 1313 1314 #define REG_FIELD_SHIFT(reg, field) reg##__##field##__SHIFT 1315 #define REG_FIELD_MASK(reg, field) reg##__##field##_MASK 1316 1317 #define REG_SET_FIELD(orig_val, reg, field, field_val) \ 1318 (((orig_val) & ~REG_FIELD_MASK(reg, field)) | \ 1319 (REG_FIELD_MASK(reg, field) & ((field_val) << REG_FIELD_SHIFT(reg, field)))) 1320 1321 #define REG_GET_FIELD(value, reg, field) \ 1322 (((value) & REG_FIELD_MASK(reg, field)) >> REG_FIELD_SHIFT(reg, field)) 1323 1324 #define WREG32_FIELD(reg, field, val) \ 1325 WREG32(mm##reg, (RREG32(mm##reg) & ~REG_FIELD_MASK(reg, field)) | (val) << REG_FIELD_SHIFT(reg, field)) 1326 1327 #define WREG32_FIELD_OFFSET(reg, offset, field, val) \ 1328 WREG32(mm##reg + offset, (RREG32(mm##reg + offset) & ~REG_FIELD_MASK(reg, field)) | (val) << REG_FIELD_SHIFT(reg, field)) 1329 1330 #define AMDGPU_GET_REG_FIELD(x, h, l) (((x) & GENMASK_ULL(h, l)) >> (l)) 1331 /* 1332 * BIOS helpers. 1333 */ 1334 #define RBIOS8(i) (adev->bios[i]) 1335 #define RBIOS16(i) (RBIOS8(i) | (RBIOS8((i)+1) << 8)) 1336 #define RBIOS32(i) ((RBIOS16(i)) | (RBIOS16((i)+2) << 16)) 1337 1338 #include "amdgpu_reset.h" 1339 1340 /* 1341 * ASICs macro. 1342 */ 1343 #define amdgpu_asic_set_vga_state(adev, state) \ 1344 ((adev)->asic_funcs->set_vga_state ? (adev)->asic_funcs->set_vga_state((adev), (state)) : 0) 1345 #define amdgpu_asic_reset(adev) (adev)->asic_funcs->reset((adev)) 1346 #define amdgpu_asic_reset_method(adev) (adev)->asic_funcs->reset_method((adev)) 1347 #define amdgpu_asic_get_xclk(adev) (adev)->asic_funcs->get_xclk((adev)) 1348 #define amdgpu_asic_set_uvd_clocks(adev, v, d) (adev)->asic_funcs->set_uvd_clocks((adev), (v), (d)) 1349 #define amdgpu_asic_set_vce_clocks(adev, ev, ec) (adev)->asic_funcs->set_vce_clocks((adev), (ev), (ec)) 1350 #define amdgpu_get_pcie_lanes(adev) (adev)->asic_funcs->get_pcie_lanes((adev)) 1351 #define amdgpu_set_pcie_lanes(adev, l) (adev)->asic_funcs->set_pcie_lanes((adev), (l)) 1352 #define amdgpu_asic_get_gpu_clock_counter(adev) (adev)->asic_funcs->get_gpu_clock_counter((adev)) 1353 #define amdgpu_asic_read_disabled_bios(adev) (adev)->asic_funcs->read_disabled_bios((adev)) 1354 #define amdgpu_asic_read_bios_from_rom(adev, b, l) (adev)->asic_funcs->read_bios_from_rom((adev), (b), (l)) 1355 #define amdgpu_asic_read_register(adev, se, sh, offset, v)((adev)->asic_funcs->read_register((adev), (se), (sh), (offset), (v))) 1356 #define amdgpu_asic_get_config_memsize(adev) (adev)->asic_funcs->get_config_memsize((adev)) 1357 #define amdgpu_asic_need_full_reset(adev) (adev)->asic_funcs->need_full_reset((adev)) 1358 #define amdgpu_asic_init_doorbell_index(adev) (adev)->asic_funcs->init_doorbell_index((adev)) 1359 #define amdgpu_asic_get_pcie_usage(adev, cnt0, cnt1) ((adev)->asic_funcs->get_pcie_usage((adev), (cnt0), (cnt1))) 1360 #define amdgpu_asic_need_reset_on_init(adev) (adev)->asic_funcs->need_reset_on_init((adev)) 1361 #define amdgpu_asic_get_pcie_replay_count(adev) ((adev)->asic_funcs->get_pcie_replay_count((adev))) 1362 #define amdgpu_asic_supports_baco(adev) \ 1363 ((adev)->asic_funcs->supports_baco ? (adev)->asic_funcs->supports_baco((adev)) : 0) 1364 #define amdgpu_asic_pre_asic_init(adev) \ 1365 { \ 1366 if ((adev)->asic_funcs && (adev)->asic_funcs->pre_asic_init) \ 1367 (adev)->asic_funcs->pre_asic_init((adev)); \ 1368 } 1369 #define amdgpu_asic_update_umd_stable_pstate(adev, enter) \ 1370 ((adev)->asic_funcs->update_umd_stable_pstate ? (adev)->asic_funcs->update_umd_stable_pstate((adev), (enter)) : 0) 1371 #define amdgpu_asic_query_video_codecs(adev, e, c) (adev)->asic_funcs->query_video_codecs((adev), (e), (c)) 1372 1373 #define amdgpu_inc_vram_lost(adev) atomic_inc(&((adev)->vram_lost_counter)) 1374 1375 #define BIT_MASK_UPPER(i) ((i) >= BITS_PER_LONG ? 0 : ~0UL << (i)) 1376 #define for_each_inst(i, inst_mask) \ 1377 for (i = ffs(inst_mask); i-- != 0; \ 1378 i = ffs(inst_mask & BIT_MASK_UPPER(i + 1))) 1379 1380 /* Common functions */ 1381 bool amdgpu_device_has_job_running(struct amdgpu_device *adev); 1382 bool amdgpu_device_should_recover_gpu(struct amdgpu_device *adev); 1383 int amdgpu_device_gpu_recover(struct amdgpu_device *adev, 1384 struct amdgpu_job *job, 1385 struct amdgpu_reset_context *reset_context); 1386 void amdgpu_device_pci_config_reset(struct amdgpu_device *adev); 1387 int amdgpu_device_pci_reset(struct amdgpu_device *adev); 1388 bool amdgpu_device_need_post(struct amdgpu_device *adev); 1389 bool amdgpu_device_seamless_boot_supported(struct amdgpu_device *adev); 1390 bool amdgpu_device_should_use_aspm(struct amdgpu_device *adev); 1391 1392 void amdgpu_cs_report_moved_bytes(struct amdgpu_device *adev, u64 num_bytes, 1393 u64 num_vis_bytes); 1394 int amdgpu_device_resize_fb_bar(struct amdgpu_device *adev); 1395 void amdgpu_device_program_register_sequence(struct amdgpu_device *adev, 1396 const u32 *registers, 1397 const u32 array_size); 1398 1399 int amdgpu_device_mode1_reset(struct amdgpu_device *adev); 1400 int amdgpu_device_link_reset(struct amdgpu_device *adev); 1401 bool amdgpu_device_supports_atpx(struct amdgpu_device *adev); 1402 bool amdgpu_device_supports_px(struct amdgpu_device *adev); 1403 bool amdgpu_device_supports_boco(struct amdgpu_device *adev); 1404 bool amdgpu_device_supports_smart_shift(struct amdgpu_device *adev); 1405 int amdgpu_device_supports_baco(struct amdgpu_device *adev); 1406 void amdgpu_device_detect_runtime_pm_mode(struct amdgpu_device *adev); 1407 bool amdgpu_device_is_peer_accessible(struct amdgpu_device *adev, 1408 struct amdgpu_device *peer_adev); 1409 int amdgpu_device_baco_enter(struct amdgpu_device *adev); 1410 int amdgpu_device_baco_exit(struct amdgpu_device *adev); 1411 1412 void amdgpu_device_flush_hdp(struct amdgpu_device *adev, 1413 struct amdgpu_ring *ring); 1414 void amdgpu_device_invalidate_hdp(struct amdgpu_device *adev, 1415 struct amdgpu_ring *ring); 1416 1417 void amdgpu_device_halt(struct amdgpu_device *adev); 1418 struct dma_fence *amdgpu_device_get_gang(struct amdgpu_device *adev); 1419 struct dma_fence *amdgpu_device_switch_gang(struct amdgpu_device *adev, 1420 struct dma_fence *gang); 1421 struct dma_fence *amdgpu_device_enforce_isolation(struct amdgpu_device *adev, 1422 struct amdgpu_ring *ring, 1423 struct amdgpu_job *job); 1424 bool amdgpu_device_has_display_hardware(struct amdgpu_device *adev); 1425 ssize_t amdgpu_get_soft_full_reset_mask(struct amdgpu_ring *ring); 1426 ssize_t amdgpu_show_reset_mask(char *buf, uint32_t supported_reset); 1427 void amdgpu_sdma_set_vm_pte_scheds(struct amdgpu_device *adev, 1428 const struct amdgpu_vm_pte_funcs *vm_pte_funcs); 1429 void amdgpu_sdma_set_buffer_funcs_scheds(struct amdgpu_device *adev, 1430 const struct amdgpu_buffer_funcs *buffer_funcs); 1431 1432 /* atpx handler */ 1433 #if defined(CONFIG_VGA_SWITCHEROO) 1434 void amdgpu_register_atpx_handler(void); 1435 void amdgpu_unregister_atpx_handler(void); 1436 bool amdgpu_has_atpx_dgpu_power_cntl(void); 1437 bool amdgpu_is_atpx_hybrid(void); 1438 bool amdgpu_has_atpx(void); 1439 #else 1440 static inline void amdgpu_register_atpx_handler(void) {} 1441 static inline void amdgpu_unregister_atpx_handler(void) {} 1442 static inline bool amdgpu_has_atpx_dgpu_power_cntl(void) { return false; } 1443 static inline bool amdgpu_is_atpx_hybrid(void) { return false; } 1444 static inline bool amdgpu_has_atpx(void) { return false; } 1445 #endif 1446 1447 /* 1448 * KMS 1449 */ 1450 extern const struct drm_ioctl_desc amdgpu_ioctls_kms[]; 1451 extern const int amdgpu_max_kms_ioctl; 1452 1453 int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags); 1454 void amdgpu_driver_unload_kms(struct drm_device *dev); 1455 int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv); 1456 void amdgpu_driver_postclose_kms(struct drm_device *dev, 1457 struct drm_file *file_priv); 1458 void amdgpu_driver_release_kms(struct drm_device *dev); 1459 1460 int amdgpu_device_prepare(struct drm_device *dev); 1461 void amdgpu_device_complete(struct drm_device *dev); 1462 int amdgpu_device_suspend(struct drm_device *dev, bool fbcon); 1463 int amdgpu_device_resume(struct drm_device *dev, bool fbcon); 1464 u32 amdgpu_get_vblank_counter_kms(struct drm_crtc *crtc); 1465 int amdgpu_enable_vblank_kms(struct drm_crtc *crtc); 1466 void amdgpu_disable_vblank_kms(struct drm_crtc *crtc); 1467 int amdgpu_info_ioctl(struct drm_device *dev, void *data, 1468 struct drm_file *filp); 1469 1470 /* 1471 * functions used by amdgpu_encoder.c 1472 */ 1473 struct amdgpu_afmt_acr { 1474 u32 clock; 1475 1476 int n_32khz; 1477 int cts_32khz; 1478 1479 int n_44_1khz; 1480 int cts_44_1khz; 1481 1482 int n_48khz; 1483 int cts_48khz; 1484 1485 }; 1486 1487 struct amdgpu_afmt_acr amdgpu_afmt_acr(uint32_t clock); 1488 1489 /* amdgpu_acpi.c */ 1490 1491 struct amdgpu_numa_info { 1492 uint64_t size; 1493 int pxm; 1494 int nid; 1495 }; 1496 1497 /* ATCS Device/Driver State */ 1498 #define AMDGPU_ATCS_PSC_DEV_STATE_D0 0 1499 #define AMDGPU_ATCS_PSC_DEV_STATE_D3_HOT 3 1500 #define AMDGPU_ATCS_PSC_DRV_STATE_OPR 0 1501 #define AMDGPU_ATCS_PSC_DRV_STATE_NOT_OPR 1 1502 1503 #if defined(CONFIG_ACPI) 1504 int amdgpu_acpi_init(struct amdgpu_device *adev); 1505 void amdgpu_acpi_fini(struct amdgpu_device *adev); 1506 bool amdgpu_acpi_is_pcie_performance_request_supported(struct amdgpu_device *adev); 1507 bool amdgpu_acpi_is_power_shift_control_supported(void); 1508 bool amdgpu_acpi_is_set_uma_allocation_size_supported(void); 1509 int amdgpu_acpi_pcie_performance_request(struct amdgpu_device *adev, 1510 u8 perf_req, bool advertise); 1511 int amdgpu_acpi_power_shift_control(struct amdgpu_device *adev, 1512 u8 dev_state, bool drv_state); 1513 int amdgpu_acpi_smart_shift_update(struct amdgpu_device *adev, 1514 enum amdgpu_ss ss_state); 1515 int amdgpu_acpi_set_uma_allocation_size(struct amdgpu_device *adev, u8 index, u8 type); 1516 int amdgpu_acpi_pcie_notify_device_ready(struct amdgpu_device *adev); 1517 int amdgpu_acpi_get_tmr_info(struct amdgpu_device *adev, u64 *tmr_offset, 1518 u64 *tmr_size); 1519 int amdgpu_acpi_get_mem_info(struct amdgpu_device *adev, int xcc_id, 1520 struct amdgpu_numa_info *numa_info); 1521 1522 void amdgpu_acpi_get_backlight_caps(struct amdgpu_dm_backlight_caps *caps); 1523 bool amdgpu_acpi_should_gpu_reset(struct amdgpu_device *adev); 1524 void amdgpu_acpi_detect(void); 1525 void amdgpu_acpi_release(void); 1526 #else 1527 static inline int amdgpu_acpi_init(struct amdgpu_device *adev) { return 0; } 1528 static inline int amdgpu_acpi_get_tmr_info(struct amdgpu_device *adev, 1529 u64 *tmr_offset, u64 *tmr_size) 1530 { 1531 return -EINVAL; 1532 } 1533 static inline int amdgpu_acpi_get_mem_info(struct amdgpu_device *adev, 1534 int xcc_id, 1535 struct amdgpu_numa_info *numa_info) 1536 { 1537 return -EINVAL; 1538 } 1539 static inline void amdgpu_acpi_fini(struct amdgpu_device *adev) { } 1540 static inline bool amdgpu_acpi_should_gpu_reset(struct amdgpu_device *adev) { return false; } 1541 static inline void amdgpu_acpi_detect(void) { } 1542 static inline void amdgpu_acpi_release(void) { } 1543 static inline bool amdgpu_acpi_is_power_shift_control_supported(void) { return false; } 1544 static inline bool amdgpu_acpi_is_set_uma_allocation_size_supported(void) { return false; } 1545 static inline int amdgpu_acpi_power_shift_control(struct amdgpu_device *adev, 1546 u8 dev_state, bool drv_state) { return 0; } 1547 static inline int amdgpu_acpi_smart_shift_update(struct amdgpu_device *adev, 1548 enum amdgpu_ss ss_state) 1549 { 1550 return 0; 1551 } 1552 static inline int amdgpu_acpi_set_uma_allocation_size(struct amdgpu_device *adev, u8 index, u8 type) 1553 { 1554 return -EINVAL; 1555 } 1556 static inline void amdgpu_acpi_get_backlight_caps(struct amdgpu_dm_backlight_caps *caps) { } 1557 #endif 1558 1559 #if defined(CONFIG_ACPI) && defined(CONFIG_SUSPEND) 1560 bool amdgpu_acpi_is_s3_active(struct amdgpu_device *adev); 1561 bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev); 1562 #else 1563 static inline bool amdgpu_acpi_is_s0ix_active(struct amdgpu_device *adev) { return false; } 1564 static inline bool amdgpu_acpi_is_s3_active(struct amdgpu_device *adev) { return false; } 1565 #endif 1566 1567 #if defined(CONFIG_DRM_AMD_ISP) 1568 int amdgpu_acpi_get_isp4_dev(struct acpi_device **dev); 1569 #endif 1570 1571 void amdgpu_register_gpu_instance(struct amdgpu_device *adev); 1572 void amdgpu_unregister_gpu_instance(struct amdgpu_device *adev); 1573 1574 pci_ers_result_t amdgpu_pci_error_detected(struct pci_dev *pdev, 1575 pci_channel_state_t state); 1576 pci_ers_result_t amdgpu_pci_mmio_enabled(struct pci_dev *pdev); 1577 pci_ers_result_t amdgpu_pci_slot_reset(struct pci_dev *pdev); 1578 void amdgpu_pci_resume(struct pci_dev *pdev); 1579 1580 bool amdgpu_device_cache_pci_state(struct pci_dev *pdev); 1581 bool amdgpu_device_load_pci_state(struct pci_dev *pdev); 1582 1583 bool amdgpu_device_skip_hw_access(struct amdgpu_device *adev); 1584 1585 int amdgpu_device_set_cg_state(struct amdgpu_device *adev, 1586 enum amd_clockgating_state state); 1587 int amdgpu_device_set_pg_state(struct amdgpu_device *adev, 1588 enum amd_powergating_state state); 1589 1590 static inline bool amdgpu_device_has_timeouts_enabled(struct amdgpu_device *adev) 1591 { 1592 return amdgpu_gpu_recovery != 0 && 1593 adev->gfx_timeout != MAX_SCHEDULE_TIMEOUT && 1594 adev->compute_timeout != MAX_SCHEDULE_TIMEOUT && 1595 adev->sdma_timeout != MAX_SCHEDULE_TIMEOUT && 1596 adev->video_timeout != MAX_SCHEDULE_TIMEOUT; 1597 } 1598 1599 #include "amdgpu_object.h" 1600 1601 static inline bool amdgpu_is_tmz(struct amdgpu_device *adev) 1602 { 1603 return adev->gmc.tmz_enabled; 1604 } 1605 1606 int amdgpu_in_reset(struct amdgpu_device *adev); 1607 1608 extern const struct attribute_group amdgpu_vram_mgr_attr_group; 1609 extern const struct attribute_group amdgpu_gtt_mgr_attr_group; 1610 extern const struct attribute_group amdgpu_flash_attr_group; 1611 1612 void amdgpu_set_init_level(struct amdgpu_device *adev, 1613 enum amdgpu_init_lvl_id lvl); 1614 1615 static inline int amdgpu_device_bus_status_check(struct amdgpu_device *adev) 1616 { 1617 u32 status; 1618 int r; 1619 1620 r = pci_read_config_dword(adev->pdev, PCI_COMMAND, &status); 1621 if (r || PCI_POSSIBLE_ERROR(status)) { 1622 dev_err(adev->dev, "device lost from bus!"); 1623 return -ENODEV; 1624 } 1625 1626 return 0; 1627 } 1628 1629 void amdgpu_device_set_uid(struct amdgpu_uid *uid_info, 1630 enum amdgpu_uid_type type, uint8_t inst, 1631 uint64_t uid); 1632 uint64_t amdgpu_device_get_uid(struct amdgpu_uid *uid_info, 1633 enum amdgpu_uid_type type, uint8_t inst); 1634 #endif 1635