1 // SPDX-License-Identifier: GPL-2.0 OR MIT 2 /* 3 * Copyright 2014-2022 Advanced Micro Devices, Inc. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be included in 13 * all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 21 * OTHER DEALINGS IN THE SOFTWARE. 22 * 23 */ 24 25 #include <linux/printk.h> 26 #include <linux/slab.h> 27 #include <linux/mm_types.h> 28 29 #include "kfd_priv.h" 30 #include "kfd_mqd_manager.h" 31 #include "cik_regs.h" 32 #include "cik_structs.h" 33 #include "oss/oss_2_4_sh_mask.h" 34 35 static inline struct cik_mqd *get_mqd(void *mqd) 36 { 37 return (struct cik_mqd *)mqd; 38 } 39 40 static inline struct cik_sdma_rlc_registers *get_sdma_mqd(void *mqd) 41 { 42 return (struct cik_sdma_rlc_registers *)mqd; 43 } 44 45 static void update_cu_mask(struct mqd_manager *mm, void *mqd, 46 struct mqd_update_info *minfo) 47 { 48 struct cik_mqd *m; 49 uint32_t se_mask[4] = {0}; /* 4 is the max # of SEs */ 50 51 if (!minfo || !minfo->cu_mask.ptr) 52 return; 53 54 mqd_symmetrically_map_cu_mask(mm, 55 minfo->cu_mask.ptr, minfo->cu_mask.count, se_mask, 0); 56 57 m = get_mqd(mqd); 58 m->compute_static_thread_mgmt_se0 = se_mask[0]; 59 m->compute_static_thread_mgmt_se1 = se_mask[1]; 60 m->compute_static_thread_mgmt_se2 = se_mask[2]; 61 m->compute_static_thread_mgmt_se3 = se_mask[3]; 62 63 pr_debug("Update cu mask to %#x %#x %#x %#x\n", 64 m->compute_static_thread_mgmt_se0, 65 m->compute_static_thread_mgmt_se1, 66 m->compute_static_thread_mgmt_se2, 67 m->compute_static_thread_mgmt_se3); 68 } 69 70 static void set_priority(struct cik_mqd *m, struct queue_properties *q) 71 { 72 m->cp_hqd_pipe_priority = pipe_priority_map[q->priority]; 73 m->cp_hqd_queue_priority = q->priority; 74 } 75 76 static struct kfd_mem_obj *allocate_mqd(struct kfd_node *kfd, 77 struct queue_properties *q) 78 { 79 struct kfd_mem_obj *mqd_mem_obj; 80 81 if (kfd_gtt_sa_allocate(kfd, sizeof(struct cik_mqd), 82 &mqd_mem_obj)) 83 return NULL; 84 85 return mqd_mem_obj; 86 } 87 88 static void init_mqd(struct mqd_manager *mm, void **mqd, 89 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr, 90 struct queue_properties *q) 91 { 92 uint64_t addr; 93 struct cik_mqd *m; 94 95 m = (struct cik_mqd *) mqd_mem_obj->cpu_ptr; 96 addr = mqd_mem_obj->gpu_addr; 97 98 memset(m, 0, ALIGN(sizeof(struct cik_mqd), 256)); 99 100 m->header = 0xC0310800; 101 m->compute_pipelinestat_enable = 1; 102 m->compute_static_thread_mgmt_se0 = 0xFFFFFFFF; 103 m->compute_static_thread_mgmt_se1 = 0xFFFFFFFF; 104 m->compute_static_thread_mgmt_se2 = 0xFFFFFFFF; 105 m->compute_static_thread_mgmt_se3 = 0xFFFFFFFF; 106 107 /* 108 * Make sure to use the last queue state saved on mqd when the cp 109 * reassigns the queue, so when queue is switched on/off (e.g over 110 * subscription or quantum timeout) the context will be consistent 111 */ 112 m->cp_hqd_persistent_state = 113 DEFAULT_CP_HQD_PERSISTENT_STATE | PRELOAD_REQ; 114 115 m->cp_mqd_control = MQD_CONTROL_PRIV_STATE_EN; 116 m->cp_mqd_base_addr_lo = lower_32_bits(addr); 117 m->cp_mqd_base_addr_hi = upper_32_bits(addr); 118 119 m->cp_hqd_quantum = QUANTUM_EN | QUANTUM_SCALE_1MS | 120 QUANTUM_DURATION(10); 121 122 /* 123 * Pipe Priority 124 * Identifies the pipe relative priority when this queue is connected 125 * to the pipeline. The pipe priority is against the GFX pipe and HP3D. 126 * In KFD we are using a fixed pipe priority set to CS_MEDIUM. 127 * 0 = CS_LOW (typically below GFX) 128 * 1 = CS_MEDIUM (typically between HP3D and GFX 129 * 2 = CS_HIGH (typically above HP3D) 130 */ 131 set_priority(m, q); 132 133 if (q->format == KFD_QUEUE_FORMAT_AQL) 134 m->cp_hqd_iq_rptr = AQL_ENABLE; 135 136 *mqd = m; 137 if (gart_addr) 138 *gart_addr = addr; 139 mm->update_mqd(mm, m, q, NULL); 140 } 141 142 static void init_mqd_sdma(struct mqd_manager *mm, void **mqd, 143 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr, 144 struct queue_properties *q) 145 { 146 struct cik_sdma_rlc_registers *m; 147 148 m = (struct cik_sdma_rlc_registers *) mqd_mem_obj->cpu_ptr; 149 150 memset(m, 0, sizeof(struct cik_sdma_rlc_registers)); 151 152 *mqd = m; 153 if (gart_addr) 154 *gart_addr = mqd_mem_obj->gpu_addr; 155 156 mm->update_mqd(mm, m, q, NULL); 157 } 158 159 static int load_mqd(struct mqd_manager *mm, void *mqd, uint32_t pipe_id, 160 uint32_t queue_id, struct queue_properties *p, 161 struct mm_struct *mms) 162 { 163 /* AQL write pointer counts in 64B packets, PM4/CP counts in dwords. */ 164 uint32_t wptr_shift = (p->format == KFD_QUEUE_FORMAT_AQL ? 4 : 0); 165 uint32_t wptr_mask = (uint32_t)((p->queue_size / 4) - 1); 166 167 return mm->dev->kfd2kgd->hqd_load(mm->dev->adev, mqd, pipe_id, queue_id, 168 (uint32_t __user *)p->write_ptr, 169 wptr_shift, wptr_mask, mms, 0); 170 } 171 172 static void __update_mqd(struct mqd_manager *mm, void *mqd, 173 struct queue_properties *q, struct mqd_update_info *minfo, 174 unsigned int atc_bit) 175 { 176 struct cik_mqd *m; 177 178 m = get_mqd(mqd); 179 m->cp_hqd_pq_control = DEFAULT_RPTR_BLOCK_SIZE | 180 DEFAULT_MIN_AVAIL_SIZE; 181 m->cp_hqd_ib_control = DEFAULT_MIN_IB_AVAIL_SIZE; 182 if (atc_bit) { 183 m->cp_hqd_pq_control |= PQ_ATC_EN; 184 m->cp_hqd_ib_control |= IB_ATC_EN; 185 } 186 187 /* 188 * Calculating queue size which is log base 2 of actual queue size -1 189 * dwords and another -1 for ffs 190 */ 191 m->cp_hqd_pq_control |= order_base_2(q->queue_size / 4) - 1; 192 m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8); 193 m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8); 194 m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr); 195 m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr); 196 m->cp_hqd_pq_doorbell_control = DOORBELL_OFFSET(q->doorbell_off); 197 198 m->cp_hqd_vmid = q->vmid; 199 200 if (q->format == KFD_QUEUE_FORMAT_AQL) 201 m->cp_hqd_pq_control |= NO_UPDATE_RPTR; 202 203 update_cu_mask(mm, mqd, minfo); 204 set_priority(m, q); 205 206 q->is_active = QUEUE_IS_ACTIVE(*q); 207 } 208 209 static uint32_t read_doorbell_id(void *mqd) 210 { 211 struct cik_mqd *m = (struct cik_mqd *)mqd; 212 213 return m->queue_doorbell_id0; 214 } 215 216 static void update_mqd(struct mqd_manager *mm, void *mqd, 217 struct queue_properties *q, 218 struct mqd_update_info *minfo) 219 { 220 __update_mqd(mm, mqd, q, minfo, 0); 221 } 222 223 static void update_mqd_sdma(struct mqd_manager *mm, void *mqd, 224 struct queue_properties *q, 225 struct mqd_update_info *minfo) 226 { 227 struct cik_sdma_rlc_registers *m; 228 229 m = get_sdma_mqd(mqd); 230 m->sdma_rlc_rb_cntl = order_base_2(q->queue_size / 4) 231 << SDMA0_RLC0_RB_CNTL__RB_SIZE__SHIFT | 232 q->vmid << SDMA0_RLC0_RB_CNTL__RB_VMID__SHIFT | 233 1 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT | 234 6 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_TIMER__SHIFT; 235 236 m->sdma_rlc_rb_base = lower_32_bits(q->queue_address >> 8); 237 m->sdma_rlc_rb_base_hi = upper_32_bits(q->queue_address >> 8); 238 m->sdma_rlc_rb_rptr_addr_lo = lower_32_bits((uint64_t)q->read_ptr); 239 m->sdma_rlc_rb_rptr_addr_hi = upper_32_bits((uint64_t)q->read_ptr); 240 m->sdma_rlc_doorbell = 241 q->doorbell_off << SDMA0_RLC0_DOORBELL__OFFSET__SHIFT; 242 243 m->sdma_rlc_virtual_addr = q->sdma_vm_addr; 244 245 m->sdma_engine_id = q->sdma_engine_id; 246 m->sdma_queue_id = q->sdma_queue_id; 247 248 q->is_active = QUEUE_IS_ACTIVE(*q); 249 } 250 251 static void checkpoint_mqd(struct mqd_manager *mm, void *mqd, void *mqd_dst, void *ctl_stack_dst) 252 { 253 struct cik_mqd *m; 254 255 m = get_mqd(mqd); 256 257 memcpy(mqd_dst, m, sizeof(struct cik_mqd)); 258 } 259 260 static void restore_mqd(struct mqd_manager *mm, void **mqd, 261 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr, 262 struct queue_properties *qp, 263 const void *mqd_src, 264 const void *ctl_stack_src, const u32 ctl_stack_size) 265 { 266 uint64_t addr; 267 struct cik_mqd *m; 268 269 m = (struct cik_mqd *) mqd_mem_obj->cpu_ptr; 270 addr = mqd_mem_obj->gpu_addr; 271 272 memcpy(m, mqd_src, sizeof(*m)); 273 274 *mqd = m; 275 if (gart_addr) 276 *gart_addr = addr; 277 278 m->cp_hqd_pq_doorbell_control = DOORBELL_OFFSET(qp->doorbell_off); 279 280 pr_debug("cp_hqd_pq_doorbell_control 0x%x\n", 281 m->cp_hqd_pq_doorbell_control); 282 283 qp->is_active = 0; 284 } 285 286 static void checkpoint_mqd_sdma(struct mqd_manager *mm, 287 void *mqd, 288 void *mqd_dst, 289 void *ctl_stack_dst) 290 { 291 struct cik_sdma_rlc_registers *m; 292 293 m = get_sdma_mqd(mqd); 294 295 memcpy(mqd_dst, m, sizeof(struct cik_sdma_rlc_registers)); 296 } 297 298 static void restore_mqd_sdma(struct mqd_manager *mm, void **mqd, 299 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr, 300 struct queue_properties *qp, 301 const void *mqd_src, 302 const void *ctl_stack_src, const u32 ctl_stack_size) 303 { 304 uint64_t addr; 305 struct cik_sdma_rlc_registers *m; 306 307 m = (struct cik_sdma_rlc_registers *) mqd_mem_obj->cpu_ptr; 308 addr = mqd_mem_obj->gpu_addr; 309 310 memcpy(m, mqd_src, sizeof(*m)); 311 312 m->sdma_rlc_doorbell = 313 qp->doorbell_off << SDMA0_RLC0_DOORBELL__OFFSET__SHIFT; 314 315 *mqd = m; 316 if (gart_addr) 317 *gart_addr = addr; 318 319 qp->is_active = 0; 320 } 321 322 /* 323 * HIQ MQD Implementation, concrete implementation for HIQ MQD implementation. 324 * The HIQ queue in Kaveri is using the same MQD structure as all the user mode 325 * queues but with different initial values. 326 */ 327 328 static void init_mqd_hiq(struct mqd_manager *mm, void **mqd, 329 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr, 330 struct queue_properties *q) 331 { 332 init_mqd(mm, mqd, mqd_mem_obj, gart_addr, q); 333 } 334 335 static void update_mqd_hiq(struct mqd_manager *mm, void *mqd, 336 struct queue_properties *q, 337 struct mqd_update_info *minfo) 338 { 339 struct cik_mqd *m; 340 341 m = get_mqd(mqd); 342 m->cp_hqd_pq_control = DEFAULT_RPTR_BLOCK_SIZE | 343 DEFAULT_MIN_AVAIL_SIZE | 344 PRIV_STATE | 345 KMD_QUEUE; 346 347 /* 348 * Calculating queue size which is log base 2 of actual queue 349 * size -1 dwords 350 */ 351 m->cp_hqd_pq_control |= order_base_2(q->queue_size / 4) - 1; 352 m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8); 353 m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8); 354 m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr); 355 m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr); 356 m->cp_hqd_pq_doorbell_control = DOORBELL_OFFSET(q->doorbell_off); 357 358 m->cp_hqd_vmid = q->vmid; 359 360 q->is_active = QUEUE_IS_ACTIVE(*q); 361 362 set_priority(m, q); 363 } 364 365 #if defined(CONFIG_DEBUG_FS) 366 367 static int debugfs_show_mqd(struct seq_file *m, void *data) 368 { 369 seq_hex_dump(m, " ", DUMP_PREFIX_OFFSET, 32, 4, 370 data, sizeof(struct cik_mqd), false); 371 return 0; 372 } 373 374 static int debugfs_show_mqd_sdma(struct seq_file *m, void *data) 375 { 376 seq_hex_dump(m, " ", DUMP_PREFIX_OFFSET, 32, 4, 377 data, sizeof(struct cik_sdma_rlc_registers), false); 378 return 0; 379 } 380 381 #endif 382 383 struct mqd_manager *mqd_manager_init_cik(enum KFD_MQD_TYPE type, 384 struct kfd_node *dev) 385 { 386 struct mqd_manager *mqd; 387 388 if (WARN_ON(type >= KFD_MQD_TYPE_MAX)) 389 return NULL; 390 391 mqd = kzalloc(sizeof(*mqd), GFP_KERNEL); 392 if (!mqd) 393 return NULL; 394 395 mqd->dev = dev; 396 397 switch (type) { 398 case KFD_MQD_TYPE_CP: 399 mqd->allocate_mqd = allocate_mqd; 400 mqd->init_mqd = init_mqd; 401 mqd->free_mqd = kfd_free_mqd_cp; 402 mqd->load_mqd = load_mqd; 403 mqd->update_mqd = update_mqd; 404 mqd->destroy_mqd = kfd_destroy_mqd_cp; 405 mqd->is_occupied = kfd_is_occupied_cp; 406 mqd->checkpoint_mqd = checkpoint_mqd; 407 mqd->restore_mqd = restore_mqd; 408 mqd->mqd_size = sizeof(struct cik_mqd); 409 #if defined(CONFIG_DEBUG_FS) 410 mqd->debugfs_show_mqd = debugfs_show_mqd; 411 #endif 412 break; 413 case KFD_MQD_TYPE_HIQ: 414 mqd->allocate_mqd = allocate_hiq_mqd; 415 mqd->init_mqd = init_mqd_hiq; 416 mqd->free_mqd = free_mqd_hiq_sdma; 417 mqd->load_mqd = load_mqd; 418 mqd->update_mqd = update_mqd_hiq; 419 mqd->destroy_mqd = kfd_destroy_mqd_cp; 420 mqd->is_occupied = kfd_is_occupied_cp; 421 mqd->mqd_size = sizeof(struct cik_mqd); 422 mqd->mqd_stride = kfd_mqd_stride; 423 #if defined(CONFIG_DEBUG_FS) 424 mqd->debugfs_show_mqd = debugfs_show_mqd; 425 #endif 426 mqd->read_doorbell_id = read_doorbell_id; 427 break; 428 case KFD_MQD_TYPE_DIQ: 429 mqd->allocate_mqd = allocate_mqd; 430 mqd->init_mqd = init_mqd_hiq; 431 mqd->free_mqd = kfd_free_mqd_cp; 432 mqd->load_mqd = load_mqd; 433 mqd->update_mqd = update_mqd_hiq; 434 mqd->destroy_mqd = kfd_destroy_mqd_cp; 435 mqd->is_occupied = kfd_is_occupied_cp; 436 mqd->mqd_size = sizeof(struct cik_mqd); 437 mqd->mqd_stride = kfd_mqd_stride; 438 #if defined(CONFIG_DEBUG_FS) 439 mqd->debugfs_show_mqd = debugfs_show_mqd; 440 #endif 441 break; 442 case KFD_MQD_TYPE_SDMA: 443 mqd->allocate_mqd = allocate_sdma_mqd; 444 mqd->init_mqd = init_mqd_sdma; 445 mqd->free_mqd = free_mqd_hiq_sdma; 446 mqd->load_mqd = kfd_load_mqd_sdma; 447 mqd->update_mqd = update_mqd_sdma; 448 mqd->destroy_mqd = kfd_destroy_mqd_sdma; 449 mqd->is_occupied = kfd_is_occupied_sdma; 450 mqd->checkpoint_mqd = checkpoint_mqd_sdma; 451 mqd->restore_mqd = restore_mqd_sdma; 452 mqd->mqd_size = sizeof(struct cik_sdma_rlc_registers); 453 mqd->mqd_stride = kfd_mqd_stride; 454 #if defined(CONFIG_DEBUG_FS) 455 mqd->debugfs_show_mqd = debugfs_show_mqd_sdma; 456 #endif 457 break; 458 default: 459 kfree(mqd); 460 return NULL; 461 } 462 463 return mqd; 464 } 465