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 "amdgpu.h" 24 #include "amdgpu_amdkfd.h" 25 #include "gfx_v8_0.h" 26 #include "gca/gfx_8_0_sh_mask.h" 27 #include "gca/gfx_8_0_d.h" 28 #include "gca/gfx_8_0_enum.h" 29 #include "oss/oss_3_0_sh_mask.h" 30 #include "oss/oss_3_0_d.h" 31 #include "gmc/gmc_8_1_sh_mask.h" 32 #include "gmc/gmc_8_1_d.h" 33 #include "vi_structs.h" 34 #include "vid.h" 35 36 enum hqd_dequeue_request_type { 37 NO_ACTION = 0, 38 DRAIN_PIPE, 39 RESET_WAVES 40 }; 41 42 static inline struct amdgpu_device *get_amdgpu_device(struct kgd_dev *kgd) 43 { 44 return (struct amdgpu_device *)kgd; 45 } 46 47 static void lock_srbm(struct kgd_dev *kgd, uint32_t mec, uint32_t pipe, 48 uint32_t queue, uint32_t vmid) 49 { 50 struct amdgpu_device *adev = get_amdgpu_device(kgd); 51 uint32_t value = PIPEID(pipe) | MEID(mec) | VMID(vmid) | QUEUEID(queue); 52 53 mutex_lock(&adev->srbm_mutex); 54 WREG32(mmSRBM_GFX_CNTL, value); 55 } 56 57 static void unlock_srbm(struct kgd_dev *kgd) 58 { 59 struct amdgpu_device *adev = get_amdgpu_device(kgd); 60 61 WREG32(mmSRBM_GFX_CNTL, 0); 62 mutex_unlock(&adev->srbm_mutex); 63 } 64 65 static void acquire_queue(struct kgd_dev *kgd, uint32_t pipe_id, 66 uint32_t queue_id) 67 { 68 struct amdgpu_device *adev = get_amdgpu_device(kgd); 69 70 uint32_t mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1; 71 uint32_t pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec); 72 73 lock_srbm(kgd, mec, pipe, queue_id, 0); 74 } 75 76 static void release_queue(struct kgd_dev *kgd) 77 { 78 unlock_srbm(kgd); 79 } 80 81 static void kgd_program_sh_mem_settings(struct kgd_dev *kgd, uint32_t vmid, 82 uint32_t sh_mem_config, 83 uint32_t sh_mem_ape1_base, 84 uint32_t sh_mem_ape1_limit, 85 uint32_t sh_mem_bases) 86 { 87 struct amdgpu_device *adev = get_amdgpu_device(kgd); 88 89 lock_srbm(kgd, 0, 0, 0, vmid); 90 91 WREG32(mmSH_MEM_CONFIG, sh_mem_config); 92 WREG32(mmSH_MEM_APE1_BASE, sh_mem_ape1_base); 93 WREG32(mmSH_MEM_APE1_LIMIT, sh_mem_ape1_limit); 94 WREG32(mmSH_MEM_BASES, sh_mem_bases); 95 96 unlock_srbm(kgd); 97 } 98 99 static int kgd_set_pasid_vmid_mapping(struct kgd_dev *kgd, u32 pasid, 100 unsigned int vmid) 101 { 102 struct amdgpu_device *adev = get_amdgpu_device(kgd); 103 104 /* 105 * We have to assume that there is no outstanding mapping. 106 * The ATC_VMID_PASID_MAPPING_UPDATE_STATUS bit could be 0 because 107 * a mapping is in progress or because a mapping finished 108 * and the SW cleared it. 109 * So the protocol is to always wait & clear. 110 */ 111 uint32_t pasid_mapping = (pasid == 0) ? 0 : (uint32_t)pasid | 112 ATC_VMID0_PASID_MAPPING__VALID_MASK; 113 114 WREG32(mmATC_VMID0_PASID_MAPPING + vmid, pasid_mapping); 115 116 while (!(RREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS) & (1U << vmid))) 117 cpu_relax(); 118 WREG32(mmATC_VMID_PASID_MAPPING_UPDATE_STATUS, 1U << vmid); 119 120 /* Mapping vmid to pasid also for IH block */ 121 WREG32(mmIH_VMID_0_LUT + vmid, pasid_mapping); 122 123 return 0; 124 } 125 126 static int kgd_init_interrupts(struct kgd_dev *kgd, uint32_t pipe_id) 127 { 128 struct amdgpu_device *adev = get_amdgpu_device(kgd); 129 uint32_t mec; 130 uint32_t pipe; 131 132 mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1; 133 pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec); 134 135 lock_srbm(kgd, mec, pipe, 0, 0); 136 137 WREG32(mmCPC_INT_CNTL, CP_INT_CNTL_RING0__TIME_STAMP_INT_ENABLE_MASK | 138 CP_INT_CNTL_RING0__OPCODE_ERROR_INT_ENABLE_MASK); 139 140 unlock_srbm(kgd); 141 142 return 0; 143 } 144 145 static inline uint32_t get_sdma_rlc_reg_offset(struct vi_sdma_mqd *m) 146 { 147 uint32_t retval; 148 149 retval = m->sdma_engine_id * SDMA1_REGISTER_OFFSET + 150 m->sdma_queue_id * KFD_VI_SDMA_QUEUE_OFFSET; 151 152 pr_debug("RLC register offset for SDMA%d RLC%d: 0x%x\n", 153 m->sdma_engine_id, m->sdma_queue_id, retval); 154 155 return retval; 156 } 157 158 static inline struct vi_mqd *get_mqd(void *mqd) 159 { 160 return (struct vi_mqd *)mqd; 161 } 162 163 static inline struct vi_sdma_mqd *get_sdma_mqd(void *mqd) 164 { 165 return (struct vi_sdma_mqd *)mqd; 166 } 167 168 static int kgd_hqd_load(struct kgd_dev *kgd, void *mqd, uint32_t pipe_id, 169 uint32_t queue_id, uint32_t __user *wptr, 170 uint32_t wptr_shift, uint32_t wptr_mask, 171 struct mm_struct *mm) 172 { 173 struct amdgpu_device *adev = get_amdgpu_device(kgd); 174 struct vi_mqd *m; 175 uint32_t *mqd_hqd; 176 uint32_t reg, wptr_val, data; 177 bool valid_wptr = false; 178 179 m = get_mqd(mqd); 180 181 acquire_queue(kgd, pipe_id, queue_id); 182 183 /* HIQ is set during driver init period with vmid set to 0*/ 184 if (m->cp_hqd_vmid == 0) { 185 uint32_t value, mec, pipe; 186 187 mec = (pipe_id / adev->gfx.mec.num_pipe_per_mec) + 1; 188 pipe = (pipe_id % adev->gfx.mec.num_pipe_per_mec); 189 190 pr_debug("kfd: set HIQ, mec:%d, pipe:%d, queue:%d.\n", 191 mec, pipe, queue_id); 192 value = RREG32(mmRLC_CP_SCHEDULERS); 193 value = REG_SET_FIELD(value, RLC_CP_SCHEDULERS, scheduler1, 194 ((mec << 5) | (pipe << 3) | queue_id | 0x80)); 195 WREG32(mmRLC_CP_SCHEDULERS, value); 196 } 197 198 /* HQD registers extend from CP_MQD_BASE_ADDR to CP_HQD_EOP_WPTR_MEM. */ 199 mqd_hqd = &m->cp_mqd_base_addr_lo; 200 201 for (reg = mmCP_MQD_BASE_ADDR; reg <= mmCP_HQD_EOP_CONTROL; reg++) 202 WREG32(reg, mqd_hqd[reg - mmCP_MQD_BASE_ADDR]); 203 204 /* Tonga errata: EOP RPTR/WPTR should be left unmodified. 205 * This is safe since EOP RPTR==WPTR for any inactive HQD 206 * on ASICs that do not support context-save. 207 * EOP writes/reads can start anywhere in the ring. 208 */ 209 if (get_amdgpu_device(kgd)->asic_type != CHIP_TONGA) { 210 WREG32(mmCP_HQD_EOP_RPTR, m->cp_hqd_eop_rptr); 211 WREG32(mmCP_HQD_EOP_WPTR, m->cp_hqd_eop_wptr); 212 WREG32(mmCP_HQD_EOP_WPTR_MEM, m->cp_hqd_eop_wptr_mem); 213 } 214 215 for (reg = mmCP_HQD_EOP_EVENTS; reg <= mmCP_HQD_ERROR; reg++) 216 WREG32(reg, mqd_hqd[reg - mmCP_MQD_BASE_ADDR]); 217 218 /* Copy userspace write pointer value to register. 219 * Activate doorbell logic to monitor subsequent changes. 220 */ 221 data = REG_SET_FIELD(m->cp_hqd_pq_doorbell_control, 222 CP_HQD_PQ_DOORBELL_CONTROL, DOORBELL_EN, 1); 223 WREG32(mmCP_HQD_PQ_DOORBELL_CONTROL, data); 224 225 /* read_user_ptr may take the mm->mmap_lock. 226 * release srbm_mutex to avoid circular dependency between 227 * srbm_mutex->mm_sem->reservation_ww_class_mutex->srbm_mutex. 228 */ 229 release_queue(kgd); 230 valid_wptr = read_user_wptr(mm, wptr, wptr_val); 231 acquire_queue(kgd, pipe_id, queue_id); 232 if (valid_wptr) 233 WREG32(mmCP_HQD_PQ_WPTR, (wptr_val << wptr_shift) & wptr_mask); 234 235 data = REG_SET_FIELD(m->cp_hqd_active, CP_HQD_ACTIVE, ACTIVE, 1); 236 WREG32(mmCP_HQD_ACTIVE, data); 237 238 release_queue(kgd); 239 240 return 0; 241 } 242 243 static int kgd_hqd_dump(struct kgd_dev *kgd, 244 uint32_t pipe_id, uint32_t queue_id, 245 uint32_t (**dump)[2], uint32_t *n_regs) 246 { 247 struct amdgpu_device *adev = get_amdgpu_device(kgd); 248 uint32_t i = 0, reg; 249 #define HQD_N_REGS (54+4) 250 #define DUMP_REG(addr) do { \ 251 if (WARN_ON_ONCE(i >= HQD_N_REGS)) \ 252 break; \ 253 (*dump)[i][0] = (addr) << 2; \ 254 (*dump)[i++][1] = RREG32(addr); \ 255 } while (0) 256 257 *dump = kmalloc_array(HQD_N_REGS * 2, sizeof(uint32_t), GFP_KERNEL); 258 if (*dump == NULL) 259 return -ENOMEM; 260 261 acquire_queue(kgd, pipe_id, queue_id); 262 263 DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE0); 264 DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE1); 265 DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE2); 266 DUMP_REG(mmCOMPUTE_STATIC_THREAD_MGMT_SE3); 267 268 for (reg = mmCP_MQD_BASE_ADDR; reg <= mmCP_HQD_EOP_DONES; reg++) 269 DUMP_REG(reg); 270 271 release_queue(kgd); 272 273 WARN_ON_ONCE(i != HQD_N_REGS); 274 *n_regs = i; 275 276 return 0; 277 } 278 279 static int kgd_hqd_sdma_load(struct kgd_dev *kgd, void *mqd, 280 uint32_t __user *wptr, struct mm_struct *mm) 281 { 282 struct amdgpu_device *adev = get_amdgpu_device(kgd); 283 struct vi_sdma_mqd *m; 284 unsigned long end_jiffies; 285 uint32_t sdma_rlc_reg_offset; 286 uint32_t data; 287 288 m = get_sdma_mqd(mqd); 289 sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(m); 290 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, 291 m->sdmax_rlcx_rb_cntl & (~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK)); 292 293 end_jiffies = msecs_to_jiffies(2000) + jiffies; 294 while (true) { 295 data = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_CONTEXT_STATUS); 296 if (data & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK) 297 break; 298 if (time_after(jiffies, end_jiffies)) { 299 pr_err("SDMA RLC not idle in %s\n", __func__); 300 return -ETIME; 301 } 302 usleep_range(500, 1000); 303 } 304 305 data = REG_SET_FIELD(m->sdmax_rlcx_doorbell, SDMA0_RLC0_DOORBELL, 306 ENABLE, 1); 307 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL, data); 308 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR, 309 m->sdmax_rlcx_rb_rptr); 310 311 if (read_user_wptr(mm, wptr, data)) 312 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR, data); 313 else 314 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_WPTR, 315 m->sdmax_rlcx_rb_rptr); 316 317 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_VIRTUAL_ADDR, 318 m->sdmax_rlcx_virtual_addr); 319 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_BASE, m->sdmax_rlcx_rb_base); 320 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_BASE_HI, 321 m->sdmax_rlcx_rb_base_hi); 322 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_ADDR_LO, 323 m->sdmax_rlcx_rb_rptr_addr_lo); 324 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR_ADDR_HI, 325 m->sdmax_rlcx_rb_rptr_addr_hi); 326 327 data = REG_SET_FIELD(m->sdmax_rlcx_rb_cntl, SDMA0_RLC0_RB_CNTL, 328 RB_ENABLE, 1); 329 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, data); 330 331 return 0; 332 } 333 334 static int kgd_hqd_sdma_dump(struct kgd_dev *kgd, 335 uint32_t engine_id, uint32_t queue_id, 336 uint32_t (**dump)[2], uint32_t *n_regs) 337 { 338 struct amdgpu_device *adev = get_amdgpu_device(kgd); 339 uint32_t sdma_offset = engine_id * SDMA1_REGISTER_OFFSET + 340 queue_id * KFD_VI_SDMA_QUEUE_OFFSET; 341 uint32_t i = 0, reg; 342 #undef HQD_N_REGS 343 #define HQD_N_REGS (19+4+2+3+7) 344 345 *dump = kmalloc_array(HQD_N_REGS * 2, sizeof(uint32_t), GFP_KERNEL); 346 if (*dump == NULL) 347 return -ENOMEM; 348 349 for (reg = mmSDMA0_RLC0_RB_CNTL; reg <= mmSDMA0_RLC0_DOORBELL; reg++) 350 DUMP_REG(sdma_offset + reg); 351 for (reg = mmSDMA0_RLC0_VIRTUAL_ADDR; reg <= mmSDMA0_RLC0_WATERMARK; 352 reg++) 353 DUMP_REG(sdma_offset + reg); 354 for (reg = mmSDMA0_RLC0_CSA_ADDR_LO; reg <= mmSDMA0_RLC0_CSA_ADDR_HI; 355 reg++) 356 DUMP_REG(sdma_offset + reg); 357 for (reg = mmSDMA0_RLC0_IB_SUB_REMAIN; reg <= mmSDMA0_RLC0_DUMMY_REG; 358 reg++) 359 DUMP_REG(sdma_offset + reg); 360 for (reg = mmSDMA0_RLC0_MIDCMD_DATA0; reg <= mmSDMA0_RLC0_MIDCMD_CNTL; 361 reg++) 362 DUMP_REG(sdma_offset + reg); 363 364 WARN_ON_ONCE(i != HQD_N_REGS); 365 *n_regs = i; 366 367 return 0; 368 } 369 370 static bool kgd_hqd_is_occupied(struct kgd_dev *kgd, uint64_t queue_address, 371 uint32_t pipe_id, uint32_t queue_id) 372 { 373 struct amdgpu_device *adev = get_amdgpu_device(kgd); 374 uint32_t act; 375 bool retval = false; 376 uint32_t low, high; 377 378 acquire_queue(kgd, pipe_id, queue_id); 379 act = RREG32(mmCP_HQD_ACTIVE); 380 if (act) { 381 low = lower_32_bits(queue_address >> 8); 382 high = upper_32_bits(queue_address >> 8); 383 384 if (low == RREG32(mmCP_HQD_PQ_BASE) && 385 high == RREG32(mmCP_HQD_PQ_BASE_HI)) 386 retval = true; 387 } 388 release_queue(kgd); 389 return retval; 390 } 391 392 static bool kgd_hqd_sdma_is_occupied(struct kgd_dev *kgd, void *mqd) 393 { 394 struct amdgpu_device *adev = get_amdgpu_device(kgd); 395 struct vi_sdma_mqd *m; 396 uint32_t sdma_rlc_reg_offset; 397 uint32_t sdma_rlc_rb_cntl; 398 399 m = get_sdma_mqd(mqd); 400 sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(m); 401 402 sdma_rlc_rb_cntl = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL); 403 404 if (sdma_rlc_rb_cntl & SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK) 405 return true; 406 407 return false; 408 } 409 410 static int kgd_hqd_destroy(struct kgd_dev *kgd, void *mqd, 411 enum kfd_preempt_type reset_type, 412 unsigned int utimeout, uint32_t pipe_id, 413 uint32_t queue_id) 414 { 415 struct amdgpu_device *adev = get_amdgpu_device(kgd); 416 uint32_t temp; 417 enum hqd_dequeue_request_type type; 418 unsigned long flags, end_jiffies; 419 int retry; 420 struct vi_mqd *m = get_mqd(mqd); 421 422 if (amdgpu_in_reset(adev)) 423 return -EIO; 424 425 acquire_queue(kgd, pipe_id, queue_id); 426 427 if (m->cp_hqd_vmid == 0) 428 WREG32_FIELD(RLC_CP_SCHEDULERS, scheduler1, 0); 429 430 switch (reset_type) { 431 case KFD_PREEMPT_TYPE_WAVEFRONT_DRAIN: 432 type = DRAIN_PIPE; 433 break; 434 case KFD_PREEMPT_TYPE_WAVEFRONT_RESET: 435 type = RESET_WAVES; 436 break; 437 default: 438 type = DRAIN_PIPE; 439 break; 440 } 441 442 /* Workaround: If IQ timer is active and the wait time is close to or 443 * equal to 0, dequeueing is not safe. Wait until either the wait time 444 * is larger or timer is cleared. Also, ensure that IQ_REQ_PEND is 445 * cleared before continuing. Also, ensure wait times are set to at 446 * least 0x3. 447 */ 448 local_irq_save(flags); 449 preempt_disable(); 450 retry = 5000; /* wait for 500 usecs at maximum */ 451 while (true) { 452 temp = RREG32(mmCP_HQD_IQ_TIMER); 453 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, PROCESSING_IQ)) { 454 pr_debug("HW is processing IQ\n"); 455 goto loop; 456 } 457 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, ACTIVE)) { 458 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, RETRY_TYPE) 459 == 3) /* SEM-rearm is safe */ 460 break; 461 /* Wait time 3 is safe for CP, but our MMIO read/write 462 * time is close to 1 microsecond, so check for 10 to 463 * leave more buffer room 464 */ 465 if (REG_GET_FIELD(temp, CP_HQD_IQ_TIMER, WAIT_TIME) 466 >= 10) 467 break; 468 pr_debug("IQ timer is active\n"); 469 } else 470 break; 471 loop: 472 if (!retry) { 473 pr_err("CP HQD IQ timer status time out\n"); 474 break; 475 } 476 ndelay(100); 477 --retry; 478 } 479 retry = 1000; 480 while (true) { 481 temp = RREG32(mmCP_HQD_DEQUEUE_REQUEST); 482 if (!(temp & CP_HQD_DEQUEUE_REQUEST__IQ_REQ_PEND_MASK)) 483 break; 484 pr_debug("Dequeue request is pending\n"); 485 486 if (!retry) { 487 pr_err("CP HQD dequeue request time out\n"); 488 break; 489 } 490 ndelay(100); 491 --retry; 492 } 493 local_irq_restore(flags); 494 preempt_enable(); 495 496 WREG32(mmCP_HQD_DEQUEUE_REQUEST, type); 497 498 end_jiffies = (utimeout * HZ / 1000) + jiffies; 499 while (true) { 500 temp = RREG32(mmCP_HQD_ACTIVE); 501 if (!(temp & CP_HQD_ACTIVE__ACTIVE_MASK)) 502 break; 503 if (time_after(jiffies, end_jiffies)) { 504 pr_err("cp queue preemption time out.\n"); 505 release_queue(kgd); 506 return -ETIME; 507 } 508 usleep_range(500, 1000); 509 } 510 511 release_queue(kgd); 512 return 0; 513 } 514 515 static int kgd_hqd_sdma_destroy(struct kgd_dev *kgd, void *mqd, 516 unsigned int utimeout) 517 { 518 struct amdgpu_device *adev = get_amdgpu_device(kgd); 519 struct vi_sdma_mqd *m; 520 uint32_t sdma_rlc_reg_offset; 521 uint32_t temp; 522 unsigned long end_jiffies = (utimeout * HZ / 1000) + jiffies; 523 524 m = get_sdma_mqd(mqd); 525 sdma_rlc_reg_offset = get_sdma_rlc_reg_offset(m); 526 527 temp = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL); 528 temp = temp & ~SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK; 529 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, temp); 530 531 while (true) { 532 temp = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_CONTEXT_STATUS); 533 if (temp & SDMA0_RLC0_CONTEXT_STATUS__IDLE_MASK) 534 break; 535 if (time_after(jiffies, end_jiffies)) { 536 pr_err("SDMA RLC not idle in %s\n", __func__); 537 return -ETIME; 538 } 539 usleep_range(500, 1000); 540 } 541 542 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_DOORBELL, 0); 543 WREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL, 544 RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_CNTL) | 545 SDMA0_RLC0_RB_CNTL__RB_ENABLE_MASK); 546 547 m->sdmax_rlcx_rb_rptr = RREG32(sdma_rlc_reg_offset + mmSDMA0_RLC0_RB_RPTR); 548 549 return 0; 550 } 551 552 static bool get_atc_vmid_pasid_mapping_info(struct kgd_dev *kgd, 553 uint8_t vmid, uint16_t *p_pasid) 554 { 555 uint32_t value; 556 struct amdgpu_device *adev = (struct amdgpu_device *) kgd; 557 558 value = RREG32(mmATC_VMID0_PASID_MAPPING + vmid); 559 *p_pasid = value & ATC_VMID0_PASID_MAPPING__PASID_MASK; 560 561 return !!(value & ATC_VMID0_PASID_MAPPING__VALID_MASK); 562 } 563 564 static int kgd_address_watch_disable(struct kgd_dev *kgd) 565 { 566 return 0; 567 } 568 569 static int kgd_address_watch_execute(struct kgd_dev *kgd, 570 unsigned int watch_point_id, 571 uint32_t cntl_val, 572 uint32_t addr_hi, 573 uint32_t addr_lo) 574 { 575 return 0; 576 } 577 578 static int kgd_wave_control_execute(struct kgd_dev *kgd, 579 uint32_t gfx_index_val, 580 uint32_t sq_cmd) 581 { 582 struct amdgpu_device *adev = get_amdgpu_device(kgd); 583 uint32_t data = 0; 584 585 mutex_lock(&adev->grbm_idx_mutex); 586 587 WREG32(mmGRBM_GFX_INDEX, gfx_index_val); 588 WREG32(mmSQ_CMD, sq_cmd); 589 590 data = REG_SET_FIELD(data, GRBM_GFX_INDEX, 591 INSTANCE_BROADCAST_WRITES, 1); 592 data = REG_SET_FIELD(data, GRBM_GFX_INDEX, 593 SH_BROADCAST_WRITES, 1); 594 data = REG_SET_FIELD(data, GRBM_GFX_INDEX, 595 SE_BROADCAST_WRITES, 1); 596 597 WREG32(mmGRBM_GFX_INDEX, data); 598 mutex_unlock(&adev->grbm_idx_mutex); 599 600 return 0; 601 } 602 603 static uint32_t kgd_address_watch_get_offset(struct kgd_dev *kgd, 604 unsigned int watch_point_id, 605 unsigned int reg_offset) 606 { 607 return 0; 608 } 609 610 static void set_scratch_backing_va(struct kgd_dev *kgd, 611 uint64_t va, uint32_t vmid) 612 { 613 struct amdgpu_device *adev = (struct amdgpu_device *) kgd; 614 615 lock_srbm(kgd, 0, 0, 0, vmid); 616 WREG32(mmSH_HIDDEN_PRIVATE_BASE_VMID, va); 617 unlock_srbm(kgd); 618 } 619 620 static void set_vm_context_page_table_base(struct kgd_dev *kgd, uint32_t vmid, 621 uint64_t page_table_base) 622 { 623 struct amdgpu_device *adev = get_amdgpu_device(kgd); 624 625 if (!amdgpu_amdkfd_is_kfd_vmid(adev, vmid)) { 626 pr_err("trying to set page table base for wrong VMID\n"); 627 return; 628 } 629 WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8, 630 lower_32_bits(page_table_base)); 631 } 632 633 const struct kfd2kgd_calls gfx_v8_kfd2kgd = { 634 .program_sh_mem_settings = kgd_program_sh_mem_settings, 635 .set_pasid_vmid_mapping = kgd_set_pasid_vmid_mapping, 636 .init_interrupts = kgd_init_interrupts, 637 .hqd_load = kgd_hqd_load, 638 .hqd_sdma_load = kgd_hqd_sdma_load, 639 .hqd_dump = kgd_hqd_dump, 640 .hqd_sdma_dump = kgd_hqd_sdma_dump, 641 .hqd_is_occupied = kgd_hqd_is_occupied, 642 .hqd_sdma_is_occupied = kgd_hqd_sdma_is_occupied, 643 .hqd_destroy = kgd_hqd_destroy, 644 .hqd_sdma_destroy = kgd_hqd_sdma_destroy, 645 .address_watch_disable = kgd_address_watch_disable, 646 .address_watch_execute = kgd_address_watch_execute, 647 .wave_control_execute = kgd_wave_control_execute, 648 .address_watch_get_offset = kgd_address_watch_get_offset, 649 .get_atc_vmid_pasid_mapping_info = 650 get_atc_vmid_pasid_mapping_info, 651 .set_scratch_backing_va = set_scratch_backing_va, 652 .set_vm_context_page_table_base = set_vm_context_page_table_base, 653 }; 654