1 /* 2 * Copyright 2014 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/fdtable.h> 24 #include <linux/uaccess.h> 25 #include <linux/firmware.h> 26 #include <drm/drmP.h> 27 #include "amdgpu.h" 28 #include "amdgpu_amdkfd.h" 29 #include "cikd.h" 30 #include "cik_sdma.h" 31 #include "amdgpu_ucode.h" 32 #include "gfx_v7_0.h" 33 #include "gca/gfx_7_2_d.h" 34 #include "gca/gfx_7_2_enum.h" 35 #include "gca/gfx_7_2_sh_mask.h" 36 #include "oss/oss_2_0_d.h" 37 #include "oss/oss_2_0_sh_mask.h" 38 #include "gmc/gmc_7_1_d.h" 39 #include "gmc/gmc_7_1_sh_mask.h" 40 #include "cik_structs.h" 41 42 enum hqd_dequeue_request_type { 43 NO_ACTION = 0, 44 DRAIN_PIPE, 45 RESET_WAVES 46 }; 47 48 enum { 49 MAX_TRAPID = 8, /* 3 bits in the bitfield. */ 50 MAX_WATCH_ADDRESSES = 4 51 }; 52 53 enum { 54 ADDRESS_WATCH_REG_ADDR_HI = 0, 55 ADDRESS_WATCH_REG_ADDR_LO, 56 ADDRESS_WATCH_REG_CNTL, 57 ADDRESS_WATCH_REG_MAX 58 }; 59 60 /* not defined in the CI/KV reg file */ 61 enum { 62 ADDRESS_WATCH_REG_CNTL_ATC_BIT = 0x10000000UL, 63 ADDRESS_WATCH_REG_CNTL_DEFAULT_MASK = 0x00FFFFFF, 64 ADDRESS_WATCH_REG_ADDLOW_MASK_EXTENSION = 0x03000000, 65 /* extend the mask to 26 bits to match the low address field */ 66 ADDRESS_WATCH_REG_ADDLOW_SHIFT = 6, 67 ADDRESS_WATCH_REG_ADDHIGH_MASK = 0xFFFF 68 }; 69 70 static const uint32_t watchRegs[MAX_WATCH_ADDRESSES * ADDRESS_WATCH_REG_MAX] = { 71 mmTCP_WATCH0_ADDR_H, mmTCP_WATCH0_ADDR_L, mmTCP_WATCH0_CNTL, 72 mmTCP_WATCH1_ADDR_H, mmTCP_WATCH1_ADDR_L, mmTCP_WATCH1_CNTL, 73 mmTCP_WATCH2_ADDR_H, mmTCP_WATCH2_ADDR_L, mmTCP_WATCH2_CNTL, 74 mmTCP_WATCH3_ADDR_H, mmTCP_WATCH3_ADDR_L, mmTCP_WATCH3_CNTL 75 }; 76 77 union TCP_WATCH_CNTL_BITS { 78 struct { 79 uint32_t mask:24; 80 uint32_t vmid:4; 81 uint32_t atc:1; 82 uint32_t mode:2; 83 uint32_t valid:1; 84 } bitfields, bits; 85 uint32_t u32All; 86 signed int i32All; 87 float f32All; 88 }; 89 90 /* 91 * Register access functions 92 */ 93 94 static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid, 95 uint32_t sh_mem_config, uint32_t sh_mem_ape1_base, 96 uint32_t sh_mem_ape1_limit, uint32_t sh_mem_bases); 97 98 static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid, 99 unsigned int vmid); 100 101 static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id, 102 uint32_t hpd_size, uint64_t hpd_gpu_addr); 103 static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id); 104 static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id, 105 uint32_t queue_id, uint32_t __user *wptr, 106 uint32_t wptr_shift, uint32_t wptr_mask, 107 struct mm_struct *mm); 108 static int kgd_hqd_dump(struct kgd_dev *kgd, 109 uint32_t pipe_id, uint32_t queue_id, 110 uint32_t (**dump)[2], uint32_t *n_regs); 111 static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd, 112 uint32_t __user *wptr, struct mm_struct *mm); 113 static int kgd_hqd_sdma_dump(struct kgd_dev *kgd, 114 uint32_t engine_id, uint32_t queue_id, 115 uint32_t (**dump)[2], uint32_t *n_regs); 116 static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address, 117 uint32_t pipe_id, uint32_t queue_id); 118 119 static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd, 120 enum kfd_preempt_type reset_type, 121 unsigned int utimeout, uint32_t pipe_id, 122 uint32_t queue_id); 123 static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd); 124 static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd, 125 unsigned int utimeout); 126 static int kgd_address_watch_disable(struct kgd_dev *kgd); 127 static int kgd_address_watch_execute(struct kgd_dev *kgd, 128 unsigned int watch_point_id, 129 uint32_t cntl_val, 130 uint32_t addr_hi, 131 uint32_t addr_lo); 132 static int kgd_wave_control_execute(struct kgd_dev *kgd, 133 uint32_t gfx_index_val, 134 uint32_t sq_cmd); 135 static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd, 136 unsigned int watch_point_id, 137 unsigned int reg_offset); 138 139 static bool get_atc_vmid_pasid_mapping_valid(struct kgd_dev *kgd, uint8_t vmid); 140 static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd, 141 uint8_t vmid); 142 143 static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type); 144 static void set_scratch_backing_va(struct kgd_dev *kgd, 145 uint64_t va, uint32_t vmid); 146 static void set_vm_context_page_table_base(struct kgd_dev *kgd, uint32_t vmid, 147 uint32_t page_table_base); 148 static int invalidate_tlbs(struct kgd_dev *kgd, uint16_t pasid); 149 static int invalidate_tlbs_vmid(struct kgd_dev *kgd, uint16_t vmid); 150 151 /* Because of REG_GET_FIELD() being used, we put this function in the 152 * asic specific file. 153 */ 154 static int get_tile_config(struct kgd_dev *kgd, 155 struct tile_config *config) 156 { 157 struct amdgpu_device *adev = (struct amdgpu_device *)kgd; 158 159 config->gb_addr_config = adev->gfx.config.gb_addr_config; 160 config->num_banks = REG_GET_FIELD(adev->gfx.config.mc_arb_ramcfg, 161 MC_ARB_RAMCFG, NOOFBANK); 162 config->num_ranks = REG_GET_FIELD(adev->gfx.config.mc_arb_ramcfg, 163 MC_ARB_RAMCFG, NOOFRANKS); 164 165 config->tile_config_ptr = adev->gfx.config.tile_mode_array; 166 config->num_tile_configs = 167 ARRAY_SIZE(adev->gfx.config.tile_mode_array); 168 config->macro_tile_config_ptr = 169 adev->gfx.config.macrotile_mode_array; 170 config->num_macro_tile_configs = 171 ARRAY_SIZE(adev->gfx.config.macrotile_mode_array); 172 173 return 0; 174 } 175 176 static const struct kfd2kgd_calls kfd2kgd = { 177 .init_gtt_mem_allocation = alloc_gtt_mem, 178 .free_gtt_mem = free_gtt_mem, 179 .get_local_mem_info = get_local_mem_info, 180 .get_gpu_clock_counter = get_gpu_clock_counter, 181 .get_max_engine_clock_in_mhz = get_max_engine_clock_in_mhz, 182 .alloc_pasid = amdgpu_pasid_alloc, 183 .free_pasid = amdgpu_pasid_free, 184 .program_sh_mem_settings = kgd_program_sh_mem_settings, 185 .set_pasid_vmid_mapping = kgd_set_pasid_vmid_mapping, 186 .init_pipeline = kgd_init_pipeline, 187 .init_interrupts = kgd_init_interrupts, 188 .hqd_load = kgd_hqd_load, 189 .hqd_sdma_load = kgd_hqd_sdma_load, 190 .hqd_dump = kgd_hqd_dump, 191 .hqd_sdma_dump = kgd_hqd_sdma_dump, 192 .hqd_is_occupied = kgd_hqd_is_occupied, 193 .hqd_sdma_is_occupied = kgd_hqd_sdma_is_occupied, 194 .hqd_destroy = kgd_hqd_destroy, 195 .hqd_sdma_destroy = kgd_hqd_sdma_destroy, 196 .address_watch_disable = kgd_address_watch_disable, 197 .address_watch_execute = kgd_address_watch_execute, 198 .wave_control_execute = kgd_wave_control_execute, 199 .address_watch_get_offset = kgd_address_watch_get_offset, 200 .get_atc_vmid_pasid_mapping_pasid = get_atc_vmid_pasid_mapping_pasid, 201 .get_atc_vmid_pasid_mapping_valid = get_atc_vmid_pasid_mapping_valid, 202 .get_fw_version = get_fw_version, 203 .set_scratch_backing_va = set_scratch_backing_va, 204 .get_tile_config = get_tile_config, 205 .get_cu_info = get_cu_info, 206 .get_vram_usage = amdgpu_amdkfd_get_vram_usage, 207 .create_process_vm = amdgpu_amdkfd_gpuvm_create_process_vm, 208 .destroy_process_vm = amdgpu_amdkfd_gpuvm_destroy_process_vm, 209 .get_process_page_dir = amdgpu_amdkfd_gpuvm_get_process_page_dir, 210 .set_vm_context_page_table_base = set_vm_context_page_table_base, 211 .alloc_memory_of_gpu = amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu, 212 .free_memory_of_gpu = amdgpu_amdkfd_gpuvm_free_memory_of_gpu, 213 .map_memory_to_gpu = amdgpu_amdkfd_gpuvm_map_memory_to_gpu, 214 .unmap_memory_to_gpu = amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu, 215 .sync_memory = amdgpu_amdkfd_gpuvm_sync_memory, 216 .map_gtt_bo_to_kernel = amdgpu_amdkfd_gpuvm_map_gtt_bo_to_kernel, 217 .restore_process_bos = amdgpu_amdkfd_gpuvm_restore_process_bos, 218 .invalidate_tlbs = invalidate_tlbs, 219 .invalidate_tlbs_vmid = invalidate_tlbs_vmid, 220 .submit_ib = amdgpu_amdkfd_submit_ib, 221 }; 222 223 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_7_get_functions(void) 224 { 225 return (struct kfd2kgd_calls *)&kfd2kgd; 226 } 227 228 static inline struct amdgpu_device *get_amdgpu_device(struct kgd_dev *kgd) 229 { 230 return (struct amdgpu_device *)kgd; 231 } 232 233 static void lock_srbm(struct kgd_dev *kgd, uint32_t mec, uint32_t pipe, 234 uint32_t queue, uint32_t vmid) 235 { 236 struct amdgpu_device *adev = get_amdgpu_device(kgd); 237 uint32_t value = PIPEID(pipe) | MEID(mec) | VMID(vmid) | QUEUEID(queue); 238 239 mutex_lock(&adev->srbm_mutex); 240 WREG32(mmSRBM_GFX_CNTL, value); 241 } 242 243 static void unlock_srbm(struct kgd_dev *kgd) 244 { 245 struct amdgpu_device *adev = get_amdgpu_device(kgd); 246 247 WREG32(mmSRBM_GFX_CNTL, 0); 248 mutex_unlock(&adev->srbm_mutex); 249 } 250 251 static void acquire_queue(struct kgd_dev *kgd, uint32_t pipe_id, 252 uint32_t queue_id) 253 { 254 struct amdgpu_device *adev = get_amdgpu_device(kgd); 255 256 uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1; 257 uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec); 258 259 lock_srbm(kgd, mec, pipe, queue_id, 0); 260 } 261 262 static void release_queue(struct kgd_dev *kgd) 263 { 264 unlock_srbm(kgd); 265 } 266 267 static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid, 268 uint32_t sh_mem_config, 269 uint32_t sh_mem_ape1_base, 270 uint32_t sh_mem_ape1_limit, 271 uint32_t sh_mem_bases) 272 { 273 struct amdgpu_device *adev = get_amdgpu_device(kgd); 274 275 lock_srbm(kgd, 0, 0, 0, vmid); 276 277 WREG32(mmSH_MEM_CONFIG, sh_mem_config); 278 WREG32(mmSH_MEM_APE1_BASE, sh_mem_ape1_base); 279 WREG32(mmSH_MEM_APE1_LIMIT, sh_mem_ape1_limit); 280 WREG32(mmSH_MEM_BASES, sh_mem_bases); 281 282 unlock_srbm(kgd); 283 } 284 285 static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, unsigned int pasid, 286 unsigned int vmid) 287 { 288 struct amdgpu_device *adev = get_amdgpu_device(kgd); 289 290 /* 291 * We have to assume that there is no outstanding mapping. 292 * The ATC_VMID_PASID_MAPPING_UPDATE_STATUS bit could be 0 because 293 * a mapping is in progress or because a mapping finished and the 294 * SW cleared it. So the protocol is to always wait & clear. 295 */ 296 uint32_t pasid_mapping = (pasid == 0) ? 0 : (uint32_t)pasid | 297 ATC_VMID0_PASID_MAPPING__VALID_MASK; 298 299 WREG32(mmATC_VMID0_PASID_MAPPING + vmid, pasid_mapping); 300 301 while (!(RREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS) & (1U << vmid))) 302 cpu_relax(); 303 WREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS, 1U << vmid); 304 305 /* Mapping vmid to pasid also for IH block */ 306 WREG32(mmIH_VMID_0_LUT + vmid, pasid_mapping); 307 308 return 0; 309 } 310 311 static int kgd_init_pipeline(struct kgd_dev *kgd, uint32_t pipe_id, 312 uint32_t hpd_size, uint64_t hpd_gpu_addr) 313 { 314 /* amdgpu owns the per-pipe state */ 315 return 0; 316 } 317 318 static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id) 319 { 320 struct amdgpu_device *adev = get_amdgpu_device(kgd); 321 uint32_t mec; 322 uint32_t pipe; 323 324 mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1; 325 pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec); 326 327 lock_srbm(kgd, mec, pipe, 0, 0); 328 329 WREG32(mmCPC_INT_CNTL, CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK | 330 CP_INT_CNTL_RING0__OPCODE_ERROR_INT_ENABLE_MASK); 331 332 unlock_srbm(kgd); 333 334 return 0; 335 } 336 337 static inline uint32_t get_sdma_base_addr(struct cik_sdma_rlc_registers *m) 338 { 339 uint32_t retval; 340 341 retval = m->sdma_engine_id * SDMA1_REGISTER_OFFSET + 342 m->sdma_queue_id * KFD_CIK_SDMA_QUEUE_OFFSET; 343 344 pr_debug("kfd: sdma base address: 0x%x\n", retval); 345 346 return retval; 347 } 348 349 static inline struct cik_mqd *get_mqd(void *mqd) 350 { 351 return (struct cik_mqd *)mqd; 352 } 353 354 static inline struct cik_sdma_rlc_registers *get_sdma_mqd(void *mqd) 355 { 356 return (struct cik_sdma_rlc_registers *)mqd; 357 } 358 359 static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id, 360 uint32_t queue_id, uint32_t __user *wptr, 361 uint32_t wptr_shift, uint32_t wptr_mask, 362 struct mm_struct *mm) 363 { 364 struct amdgpu_device *adev = get_amdgpu_device(kgd); 365 struct cik_mqd *m; 366 uint32_t *mqd_hqd; 367 uint32_t reg, wptr_val, data; 368 bool valid_wptr = false; 369 370 m = get_mqd(mqd); 371 372 acquire_queue(kgd, pipe_id, queue_id); 373 374 /* HQD registers extend from CP_MQD_BASE_ADDR to CP_MQD_CONTROL. */ 375 mqd_hqd = &m->cp_mqd_base_addr_lo; 376 377 for (reg = mmCP_MQD_BASE_ADDR; reg <= mmCP_MQD_CONTROL; reg++) 378 WREG32(reg, mqd_hqd[reg - mmCP_MQD_BASE_ADDR]); 379 380 /* Copy userspace write pointer value to register. 381 * Activate doorbell logic to monitor subsequent changes. 382 */ 383 data = REG_SET_FIELD(m->cp_hqd_pq_doorbell_control, 384 CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 1); 385 WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, data); 386 387 /* read_user_ptr may take the mm->mmap_sem. 388 * release srbm_mutex to avoid circular dependency between 389 * srbm_mutex->mm_sem->reservation_ww_class_mutex->srbm_mutex. 390 */ 391 release_queue(kgd); 392 valid_wptr = read_user_wptr(mm, wptr, wptr_val); 393 acquire_queue(kgd, pipe_id, queue_id); 394 if (valid_wptr) 395 WREG32(mmCP_HQD_PQ_WPTR, (wptr_val << wptr_shift) & wptr_mask); 396 397 data = REG_SET_FIELD(m->cp_hqd_active, CP_HQD_ACTIVE, ACTIVE, 1); 398 WREG32(mmCP_HQD_ACTIVE, data); 399 400 release_queue(kgd); 401 402 return 0; 403 } 404 405 static int kgd_hqd_dump(struct kgd_dev *kgd, 406 uint32_t pipe_id, uint32_t queue_id, 407 uint32_t (**dump)[2], uint32_t *n_regs) 408 { 409 struct amdgpu_device *adev = get_amdgpu_device(kgd); 410 uint32_t i = 0, reg; 411 #define HQD_N_REGS (35+4) 412 #define DUMP_REG(addr) do { \ 413 if (WARN_ON_ONCE(i >= HQD_N_REGS)) \ 414 break; \ 415 (*dump)[i][0] = (addr) << 2; \ 416 (*dump)[i++][1] = RREG32(addr); \ 417 } while (0) 418 419 *dump = kmalloc(HQD_N_REGS*2*sizeof(uint32_t), GFP_KERNEL); 420 if (*dump == NULL) 421 return -ENOMEM; 422 423 acquire_queue(kgd, pipe_id, queue_id); 424 425 DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE0); 426 DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE1); 427 DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE2); 428 DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE3); 429 430 for (reg = mmCP_MQD_BASE_ADDR; reg <= mmCP_MQD_CONTROL; reg++) 431 DUMP_REG(reg); 432 433 release_queue(kgd); 434 435 WARN_ON_ONCE(i != HQD_N_REGS); 436 *n_regs = i; 437 438 return 0; 439 } 440 441 static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd, 442 uint32_t __user *wptr, struct mm_struct *mm) 443 { 444 struct amdgpu_device *adev = get_amdgpu_device(kgd); 445 struct cik_sdma_rlc_registers *m; 446 unsigned long end_jiffies; 447 uint32_t sdma_base_addr; 448 uint32_t data; 449 450 m = get_sdma_mqd(mqd); 451 sdma_base_addr = get_sdma_base_addr(m); 452 453 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, 454 m->sdma_rlc_rb_cntl & (~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK)); 455 456 end_jiffies = msecs_to_jiffies(2000) + jiffies; 457 while (true) { 458 data = RREG32(sdma_base_addr + mmSDMA0_RLC0_CONTEXT_STATUS); 459 if (data & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK) 460 break; 461 if (time_after(jiffies, end_jiffies)) 462 return -ETIME; 463 usleep_range(500, 1000); 464 } 465 if (m->sdma_engine_id) { 466 data = RREG32(mmSDMA1_GFX_CONTEXT_CNTL); 467 data = REG_SET_FIELD(data, SDMA1_GFX_CONTEXT_CNTL, 468 RESUME_CTX, 0); 469 WREG32(mmSDMA1_GFX_CONTEXT_CNTL, data); 470 } else { 471 data = RREG32(mmSDMA0_GFX_CONTEXT_CNTL); 472 data = REG_SET_FIELD(data, SDMA0_GFX_CONTEXT_CNTL, 473 RESUME_CTX, 0); 474 WREG32(mmSDMA0_GFX_CONTEXT_CNTL, data); 475 } 476 477 data = REG_SET_FIELD(m->sdma_rlc_doorbell, SDMA0_RLC0_DOORBELL, 478 ENABLE, 1); 479 WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL, data); 480 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR, m->sdma_rlc_rb_rptr); 481 482 if (read_user_wptr(mm, wptr, data)) 483 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR, data); 484 else 485 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_WPTR, 486 m->sdma_rlc_rb_rptr); 487 488 WREG32(sdma_base_addr + mmSDMA0_RLC0_VIRTUAL_ADDR, 489 m->sdma_rlc_virtual_addr); 490 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE, m->sdma_rlc_rb_base); 491 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_BASE_HI, 492 m->sdma_rlc_rb_base_hi); 493 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_ADDR_LO, 494 m->sdma_rlc_rb_rptr_addr_lo); 495 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR_ADDR_HI, 496 m->sdma_rlc_rb_rptr_addr_hi); 497 498 data = REG_SET_FIELD(m->sdma_rlc_rb_cntl, SDMA0_RLC0_RB_CNTL, 499 RB_ENABLE, 1); 500 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, data); 501 502 return 0; 503 } 504 505 static int kgd_hqd_sdma_dump(struct kgd_dev *kgd, 506 uint32_t engine_id, uint32_t queue_id, 507 uint32_t (**dump)[2], uint32_t *n_regs) 508 { 509 struct amdgpu_device *adev = get_amdgpu_device(kgd); 510 uint32_t sdma_offset = engine_id * SDMA1_REGISTER_OFFSET + 511 queue_id * KFD_CIK_SDMA_QUEUE_OFFSET; 512 uint32_t i = 0, reg; 513 #undef HQD_N_REGS 514 #define HQD_N_REGS (19+4) 515 516 *dump = kmalloc(HQD_N_REGS*2*sizeof(uint32_t), GFP_KERNEL); 517 if (*dump == NULL) 518 return -ENOMEM; 519 520 for (reg = mmSDMA0_RLC0_RB_CNTL; reg <= mmSDMA0_RLC0_DOORBELL; reg++) 521 DUMP_REG(sdma_offset + reg); 522 for (reg = mmSDMA0_RLC0_VIRTUAL_ADDR; reg <= mmSDMA0_RLC0_WATERMARK; 523 reg++) 524 DUMP_REG(sdma_offset + reg); 525 526 WARN_ON_ONCE(i != HQD_N_REGS); 527 *n_regs = i; 528 529 return 0; 530 } 531 532 static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address, 533 uint32_t pipe_id, uint32_t queue_id) 534 { 535 struct amdgpu_device *adev = get_amdgpu_device(kgd); 536 uint32_t act; 537 bool retval = false; 538 uint32_t low, high; 539 540 acquire_queue(kgd, pipe_id, queue_id); 541 act = RREG32(mmCP_HQD_ACTIVE); 542 if (act) { 543 low = lower_32_bits(queue_address >> 8); 544 high = upper_32_bits(queue_address >> 8); 545 546 if (low == RREG32(mmCP_HQD_PQ_BASE) && 547 high == RREG32(mmCP_HQD_PQ_BASE_HI)) 548 retval = true; 549 } 550 release_queue(kgd); 551 return retval; 552 } 553 554 static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd) 555 { 556 struct amdgpu_device *adev = get_amdgpu_device(kgd); 557 struct cik_sdma_rlc_registers *m; 558 uint32_t sdma_base_addr; 559 uint32_t sdma_rlc_rb_cntl; 560 561 m = get_sdma_mqd(mqd); 562 sdma_base_addr = get_sdma_base_addr(m); 563 564 sdma_rlc_rb_cntl = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL); 565 566 if (sdma_rlc_rb_cntl & SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK) 567 return true; 568 569 return false; 570 } 571 572 static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd, 573 enum kfd_preempt_type reset_type, 574 unsigned int utimeout, uint32_t pipe_id, 575 uint32_t queue_id) 576 { 577 struct amdgpu_device *adev = get_amdgpu_device(kgd); 578 uint32_t temp; 579 enum hqd_dequeue_request_type type; 580 unsigned long flags, end_jiffies; 581 int retry; 582 583 acquire_queue(kgd, pipe_id, queue_id); 584 WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, 0); 585 586 switch (reset_type) { 587 case KFD_PREEMPT_TYPE_WAVEFRONT_DRAIN: 588 type = DRAIN_PIPE; 589 break; 590 case KFD_PREEMPT_TYPE_WAVEFRONT_RESET: 591 type = RESET_WAVES; 592 break; 593 default: 594 type = DRAIN_PIPE; 595 break; 596 } 597 598 /* Workaround: If IQ timer is active and the wait time is close to or 599 * equal to 0, dequeueing is not safe. Wait until either the wait time 600 * is larger or timer is cleared. Also, ensure that IQ_REQ_PEND is 601 * cleared before continuing. Also, ensure wait times are set to at 602 * least 0x3. 603 */ 604 local_irq_save(flags); 605 preempt_disable(); 606 retry = 5000; /* wait for 500 usecs at maximum */ 607 while (true) { 608 temp = RREG32(mmCP_HQD_IQ_TIMER); 609 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, PROCESSING_IQ)) { 610 pr_debug("HW is processing IQ\n"); 611 goto loop; 612 } 613 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, ACTIVE)) { 614 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, RETRY_TYPE) 615 == 3) /* SEM-rearm is safe */ 616 break; 617 /* Wait time 3 is safe for CP, but our MMIO read/write 618 * time is close to 1 microsecond, so check for 10 to 619 * leave more buffer room 620 */ 621 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, WAIT_TIME) 622 >= 10) 623 break; 624 pr_debug("IQ timer is active\n"); 625 } else 626 break; 627 loop: 628 if (!retry) { 629 pr_err("CP HQD IQ timer status time out\n"); 630 break; 631 } 632 ndelay(100); 633 --retry; 634 } 635 retry = 1000; 636 while (true) { 637 temp = RREG32(mmCP_HQD_DEQUEUE_REQUEST); 638 if (!(temp & CP_HQD_DEQUEUE_REQUEST__IQ_REQ_PEND_MASK)) 639 break; 640 pr_debug("Dequeue request is pending\n"); 641 642 if (!retry) { 643 pr_err("CP HQD dequeue request time out\n"); 644 break; 645 } 646 ndelay(100); 647 --retry; 648 } 649 local_irq_restore(flags); 650 preempt_enable(); 651 652 WREG32(mmCP_HQD_DEQUEUE_REQUEST, type); 653 654 end_jiffies = (utimeout * HZ / 1000) + jiffies; 655 while (true) { 656 temp = RREG32(mmCP_HQD_ACTIVE); 657 if (!(temp & CP_HQD_ACTIVE__ACTIVE_MASK)) 658 break; 659 if (time_after(jiffies, end_jiffies)) { 660 pr_err("cp queue preemption time out\n"); 661 release_queue(kgd); 662 return -ETIME; 663 } 664 usleep_range(500, 1000); 665 } 666 667 release_queue(kgd); 668 return 0; 669 } 670 671 static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd, 672 unsigned int utimeout) 673 { 674 struct amdgpu_device *adev = get_amdgpu_device(kgd); 675 struct cik_sdma_rlc_registers *m; 676 uint32_t sdma_base_addr; 677 uint32_t temp; 678 unsigned long end_jiffies = (utimeout * HZ / 1000) + jiffies; 679 680 m = get_sdma_mqd(mqd); 681 sdma_base_addr = get_sdma_base_addr(m); 682 683 temp = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL); 684 temp = temp & ~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK; 685 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, temp); 686 687 while (true) { 688 temp = RREG32(sdma_base_addr + mmSDMA0_RLC0_CONTEXT_STATUS); 689 if (temp & SDMA0_STATUS_REG__RB_CMD_IDLE__SHIFT) 690 break; 691 if (time_after(jiffies, end_jiffies)) 692 return -ETIME; 693 usleep_range(500, 1000); 694 } 695 696 WREG32(sdma_base_addr + mmSDMA0_RLC0_DOORBELL, 0); 697 WREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL, 698 RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_CNTL) | 699 SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK); 700 701 m->sdma_rlc_rb_rptr = RREG32(sdma_base_addr + mmSDMA0_RLC0_RB_RPTR); 702 703 return 0; 704 } 705 706 static int kgd_address_watch_disable(struct kgd_dev *kgd) 707 { 708 struct amdgpu_device *adev = get_amdgpu_device(kgd); 709 union TCP_WATCH_CNTL_BITS cntl; 710 unsigned int i; 711 712 cntl.u32All = 0; 713 714 cntl.bitfields.valid = 0; 715 cntl.bitfields.mask = ADDRESS_WATCH_REG_CNTL_DEFAULT_MASK; 716 cntl.bitfields.atc = 1; 717 718 /* Turning off this address until we set all the registers */ 719 for (i = 0; i < MAX_WATCH_ADDRESSES; i++) 720 WREG32(watchRegs[i * ADDRESS_WATCH_REG_MAX + 721 ADDRESS_WATCH_REG_CNTL], cntl.u32All); 722 723 return 0; 724 } 725 726 static int kgd_address_watch_execute(struct kgd_dev *kgd, 727 unsigned int watch_point_id, 728 uint32_t cntl_val, 729 uint32_t addr_hi, 730 uint32_t addr_lo) 731 { 732 struct amdgpu_device *adev = get_amdgpu_device(kgd); 733 union TCP_WATCH_CNTL_BITS cntl; 734 735 cntl.u32All = cntl_val; 736 737 /* Turning off this watch point until we set all the registers */ 738 cntl.bitfields.valid = 0; 739 WREG32(watchRegs[watch_point_id * ADDRESS_WATCH_REG_MAX + 740 ADDRESS_WATCH_REG_CNTL], cntl.u32All); 741 742 WREG32(watchRegs[watch_point_id * ADDRESS_WATCH_REG_MAX + 743 ADDRESS_WATCH_REG_ADDR_HI], addr_hi); 744 745 WREG32(watchRegs[watch_point_id * ADDRESS_WATCH_REG_MAX + 746 ADDRESS_WATCH_REG_ADDR_LO], addr_lo); 747 748 /* Enable the watch point */ 749 cntl.bitfields.valid = 1; 750 751 WREG32(watchRegs[watch_point_id * ADDRESS_WATCH_REG_MAX + 752 ADDRESS_WATCH_REG_CNTL], cntl.u32All); 753 754 return 0; 755 } 756 757 static int kgd_wave_control_execute(struct kgd_dev *kgd, 758 uint32_t gfx_index_val, 759 uint32_t sq_cmd) 760 { 761 struct amdgpu_device *adev = get_amdgpu_device(kgd); 762 uint32_t data; 763 764 mutex_lock(&adev->grbm_idx_mutex); 765 766 WREG32(mmGRBM_GFX_INDEX, gfx_index_val); 767 WREG32(mmSQ_CMD, sq_cmd); 768 769 /* Restore the GRBM_GFX_INDEX register */ 770 771 data = GRBM_GFX_INDEX__INSTANCE_BROADCAST_WRITES_MASK | 772 GRBM_GFX_INDEX__SH_BROADCAST_WRITES_MASK | 773 GRBM_GFX_INDEX__SE_BROADCAST_WRITES_MASK; 774 775 WREG32(mmGRBM_GFX_INDEX, data); 776 777 mutex_unlock(&adev->grbm_idx_mutex); 778 779 return 0; 780 } 781 782 static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd, 783 unsigned int watch_point_id, 784 unsigned int reg_offset) 785 { 786 return watchRegs[watch_point_id * ADDRESS_WATCH_REG_MAX + reg_offset]; 787 } 788 789 static bool get_atc_vmid_pasid_mapping_valid(struct kgd_dev *kgd, 790 uint8_t vmid) 791 { 792 uint32_t reg; 793 struct amdgpu_device *adev = (struct amdgpu_device *) kgd; 794 795 reg = RREG32(mmATC_VMID0_PASID_MAPPING + vmid); 796 return reg & ATC_VMID0_PASID_MAPPING__VALID_MASK; 797 } 798 799 static uint16_t get_atc_vmid_pasid_mapping_pasid(struct kgd_dev *kgd, 800 uint8_t vmid) 801 { 802 uint32_t reg; 803 struct amdgpu_device *adev = (struct amdgpu_device *) kgd; 804 805 reg = RREG32(mmATC_VMID0_PASID_MAPPING + vmid); 806 return reg & ATC_VMID0_PASID_MAPPING__PASID_MASK; 807 } 808 809 static void set_scratch_backing_va(struct kgd_dev *kgd, 810 uint64_t va, uint32_t vmid) 811 { 812 struct amdgpu_device *adev = (struct amdgpu_device *) kgd; 813 814 lock_srbm(kgd, 0, 0, 0, vmid); 815 WREG32(mmSH_HIDDEN_PRIVATE_BASE_VMID, va); 816 unlock_srbm(kgd); 817 } 818 819 static uint16_t get_fw_version(struct kgd_dev *kgd, enum kgd_engine_type type) 820 { 821 struct amdgpu_device *adev = (struct amdgpu_device *) kgd; 822 const union amdgpu_firmware_header *hdr; 823 824 switch (type) { 825 case KGD_ENGINE_PFP: 826 hdr = (const union amdgpu_firmware_header *) 827 adev->gfx.pfp_fw->data; 828 break; 829 830 case KGD_ENGINE_ME: 831 hdr = (const union amdgpu_firmware_header *) 832 adev->gfx.me_fw->data; 833 break; 834 835 case KGD_ENGINE_CE: 836 hdr = (const union amdgpu_firmware_header *) 837 adev->gfx.ce_fw->data; 838 break; 839 840 case KGD_ENGINE_MEC1: 841 hdr = (const union amdgpu_firmware_header *) 842 adev->gfx.mec_fw->data; 843 break; 844 845 case KGD_ENGINE_MEC2: 846 hdr = (const union amdgpu_firmware_header *) 847 adev->gfx.mec2_fw->data; 848 break; 849 850 case KGD_ENGINE_RLC: 851 hdr = (const union amdgpu_firmware_header *) 852 adev->gfx.rlc_fw->data; 853 break; 854 855 case KGD_ENGINE_SDMA1: 856 hdr = (const union amdgpu_firmware_header *) 857 adev->sdma.instance[0].fw->data; 858 break; 859 860 case KGD_ENGINE_SDMA2: 861 hdr = (const union amdgpu_firmware_header *) 862 adev->sdma.instance[1].fw->data; 863 break; 864 865 default: 866 return 0; 867 } 868 869 if (hdr == NULL) 870 return 0; 871 872 /* Only 12 bit in use*/ 873 return hdr->common.ucode_version; 874 } 875 876 static void set_vm_context_page_table_base(struct kgd_dev *kgd, uint32_t vmid, 877 uint32_t page_table_base) 878 { 879 struct amdgpu_device *adev = get_amdgpu_device(kgd); 880 881 if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid)) { 882 pr_err("trying to set page table base for wrong VMID\n"); 883 return; 884 } 885 WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8, page_table_base); 886 } 887 888 static int invalidate_tlbs(struct kgd_dev *kgd, uint16_t pasid) 889 { 890 struct amdgpu_device *adev = (struct amdgpu_device *) kgd; 891 int vmid; 892 unsigned int tmp; 893 894 for (vmid = 0; vmid < 16; vmid++) { 895 if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid)) 896 continue; 897 898 tmp = RREG32(mmATC_VMID0_PASID_MAPPING + vmid); 899 if ((tmp & ATC_VMID0_PASID_MAPPING__VALID_MASK) && 900 (tmp & ATC_VMID0_PASID_MAPPING__PASID_MASK) == pasid) { 901 WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid); 902 RREG32(mmVM_INVALIDATE_RESPONSE); 903 break; 904 } 905 } 906 907 return 0; 908 } 909 910 static int invalidate_tlbs_vmid(struct kgd_dev *kgd, uint16_t vmid) 911 { 912 struct amdgpu_device *adev = (struct amdgpu_device *) kgd; 913 914 if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid)) { 915 pr_err("non kfd vmid\n"); 916 return 0; 917 } 918 919 WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid); 920 RREG32(mmVM_INVALIDATE_RESPONSE); 921 return 0; 922 } 923