drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c

   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
  24 #include <linux/printk.h>
  25 #include <linux/slab.h>
  26 #include <linux/mm_types.h>
  27
  28 #include "kfd_priv.h"
  29 #include "kfd_mqd_manager.h"
  30 #include "vi_structs.h"
  31 #include "gca/gfx_8_0_sh_mask.h"
  32 #include "gca/gfx_8_0_enum.h"
  33 #include "oss/oss_3_0_sh_mask.h"
  34
  35 #define CP_MQD_CONTROL__PRIV_STATE__SHIFT 0x8
  36
  37 static inline struct vi_mqd *get_mqd(void *mqd)
  38 {
  39         return (struct vi_mqd *)mqd;
  40 }
  41
  42 static inline struct vi_sdma_mqd *get_sdma_mqd(void *mqd)
  43 {
  44         return (struct vi_sdma_mqd *)mqd;
  45 }
  46
  47 static void update_cu_mask(struct mqd_manager *mm, void *mqd,
  48                         struct queue_properties *q)
  49 {
  50         struct vi_mqd *m;
  51         uint32_t se_mask[4] = {0}; /* 4 is the max # of SEs */
  52
  53         if (q->cu_mask_count == 0)
  54                 return;
  55
  56         mqd_symmetrically_map_cu_mask(mm,
  57                 q->cu_mask, q->cu_mask_count, se_mask);
  58
  59         m = get_mqd(mqd);
  60         m->compute_static_thread_mgmt_se0 = se_mask[0];
  61         m->compute_static_thread_mgmt_se1 = se_mask[1];
  62         m->compute_static_thread_mgmt_se2 = se_mask[2];
  63         m->compute_static_thread_mgmt_se3 = se_mask[3];
  64
  65         pr_debug("Update cu mask to %#x %#x %#x %#x\n",
  66                 m->compute_static_thread_mgmt_se0,
  67                 m->compute_static_thread_mgmt_se1,
  68                 m->compute_static_thread_mgmt_se2,
  69                 m->compute_static_thread_mgmt_se3);
  70 }
  71
  72 static void set_priority(struct vi_mqd *m, struct queue_properties *q)
  73 {
  74         m->cp_hqd_pipe_priority = pipe_priority_map[q->priority];
  75         m->cp_hqd_queue_priority = q->priority;
  76 }
  77
  78 static struct kfd_mem_obj *allocate_mqd(struct kfd_dev *kfd,
  79                                         struct queue_properties *q)
  80 {
  81         struct kfd_mem_obj *mqd_mem_obj;
  82
  83         if (kfd_gtt_sa_allocate(kfd, sizeof(struct vi_mqd),
  84                         &mqd_mem_obj))
  85                 return NULL;
  86
  87         return mqd_mem_obj;
  88 }
  89
  90 static void init_mqd(struct mqd_manager *mm, void **mqd,
  91                         struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
  92                         struct queue_properties *q)
  93 {
  94         uint64_t addr;
  95         struct vi_mqd *m;
  96
  97         m = (struct vi_mqd *) mqd_mem_obj->cpu_ptr;
  98         addr = mqd_mem_obj->gpu_addr;
  99
 100         memset(m, 0, sizeof(struct vi_mqd));
 101
 102         m->header = 0xC0310800;
 103         m->compute_pipelinestat_enable = 1;
 104         m->compute_static_thread_mgmt_se0 = 0xFFFFFFFF;
 105         m->compute_static_thread_mgmt_se1 = 0xFFFFFFFF;
 106         m->compute_static_thread_mgmt_se2 = 0xFFFFFFFF;
 107         m->compute_static_thread_mgmt_se3 = 0xFFFFFFFF;
 108
 109         m->cp_hqd_persistent_state = CP_HQD_PERSISTENT_STATE__PRELOAD_REQ_MASK |
 110                         0x53 << CP_HQD_PERSISTENT_STATE__PRELOAD_SIZE__SHIFT;
 111
 112         m->cp_mqd_control = 1 << CP_MQD_CONTROL__PRIV_STATE__SHIFT |
 113                         MTYPE_UC << CP_MQD_CONTROL__MTYPE__SHIFT;
 114
 115         m->cp_mqd_base_addr_lo        = lower_32_bits(addr);
 116         m->cp_mqd_base_addr_hi        = upper_32_bits(addr);
 117
 118         m->cp_hqd_quantum = 1 << CP_HQD_QUANTUM__QUANTUM_EN__SHIFT |
 119                         1 << CP_HQD_QUANTUM__QUANTUM_SCALE__SHIFT |
 120                         10 << CP_HQD_QUANTUM__QUANTUM_DURATION__SHIFT;
 121
 122         set_priority(m, q);
 123         m->cp_hqd_eop_rptr = 1 << CP_HQD_EOP_RPTR__INIT_FETCHER__SHIFT;
 124
 125         if (q->format == KFD_QUEUE_FORMAT_AQL)
 126                 m->cp_hqd_iq_rptr = 1;
 127
 128         if (q->tba_addr) {
 129                 m->compute_tba_lo = lower_32_bits(q->tba_addr >> 8);
 130                 m->compute_tba_hi = upper_32_bits(q->tba_addr >> 8);
 131                 m->compute_tma_lo = lower_32_bits(q->tma_addr >> 8);
 132                 m->compute_tma_hi = upper_32_bits(q->tma_addr >> 8);
 133                 m->compute_pgm_rsrc2 |=
 134                         (1 << COMPUTE_PGM_RSRC2__TRAP_PRESENT__SHIFT);
 135         }
 136
 137         if (mm->dev->cwsr_enabled && q->ctx_save_restore_area_address) {
 138                 m->cp_hqd_persistent_state |=
 139                         (1 << CP_HQD_PERSISTENT_STATE__QSWITCH_MODE__SHIFT);
 140                 m->cp_hqd_ctx_save_base_addr_lo =
 141                         lower_32_bits(q->ctx_save_restore_area_address);
 142                 m->cp_hqd_ctx_save_base_addr_hi =
 143                         upper_32_bits(q->ctx_save_restore_area_address);
 144                 m->cp_hqd_ctx_save_size = q->ctx_save_restore_area_size;
 145                 m->cp_hqd_cntl_stack_size = q->ctl_stack_size;
 146                 m->cp_hqd_cntl_stack_offset = q->ctl_stack_size;
 147                 m->cp_hqd_wg_state_offset = q->ctl_stack_size;
 148         }
 149
 150         *mqd = m;
 151         if (gart_addr)
 152                 *gart_addr = addr;
 153         mm->update_mqd(mm, m, q);
 154 }
 155
 156 static int load_mqd(struct mqd_manager *mm, void *mqd,
 157                         uint32_t pipe_id, uint32_t queue_id,
 158                         struct queue_properties *p, struct mm_struct *mms)
 159 {
 160         /* AQL write pointer counts in 64B packets, PM4/CP counts in dwords. */
 161         uint32_t wptr_shift = (p->format == KFD_QUEUE_FORMAT_AQL ? 4 : 0);
 162         uint32_t wptr_mask = (uint32_t)((p->queue_size / 4) - 1);
 163
 164         return mm->dev->kfd2kgd->hqd_load(mm->dev->kgd, mqd, pipe_id, queue_id,
 165                                           (uint32_t __user *)p->write_ptr,
 166                                           wptr_shift, wptr_mask, mms);
 167 }
 168
 169 static void __update_mqd(struct mqd_manager *mm, void *mqd,
 170                         struct queue_properties *q, unsigned int mtype,
 171                         unsigned int atc_bit)
 172 {
 173         struct vi_mqd *m;
 174
 175         m = get_mqd(mqd);
 176
 177         m->cp_hqd_pq_control = 5 << CP_HQD_PQ_CONTROL__RPTR_BLOCK_SIZE__SHIFT |
 178                         atc_bit << CP_HQD_PQ_CONTROL__PQ_ATC__SHIFT |
 179                         mtype << CP_HQD_PQ_CONTROL__MTYPE__SHIFT;
 180         m->cp_hqd_pq_control |= order_base_2(q->queue_size / 4) - 1;
 181         pr_debug("cp_hqd_pq_control 0x%x\n", m->cp_hqd_pq_control);
 182
 183         m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
 184         m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);
 185
 186         m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
 187         m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
 188         m->cp_hqd_pq_wptr_poll_addr_lo = lower_32_bits((uint64_t)q->write_ptr);
 189         m->cp_hqd_pq_wptr_poll_addr_hi = upper_32_bits((uint64_t)q->write_ptr);
 190
 191         m->cp_hqd_pq_doorbell_control =
 192                 q->doorbell_off <<
 193                         CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET__SHIFT;
 194         pr_debug("cp_hqd_pq_doorbell_control 0x%x\n",
 195                         m->cp_hqd_pq_doorbell_control);
 196
 197         m->cp_hqd_eop_control = atc_bit << CP_HQD_EOP_CONTROL__EOP_ATC__SHIFT |
 198                         mtype << CP_HQD_EOP_CONTROL__MTYPE__SHIFT;
 199
 200         m->cp_hqd_ib_control = atc_bit << CP_HQD_IB_CONTROL__IB_ATC__SHIFT |
 201                         3 << CP_HQD_IB_CONTROL__MIN_IB_AVAIL_SIZE__SHIFT |
 202                         mtype << CP_HQD_IB_CONTROL__MTYPE__SHIFT;
 203
 204         /*
 205          * HW does not clamp this field correctly. Maximum EOP queue size
 206          * is constrained by per-SE EOP done signal count, which is 8-bit.
 207          * Limit is 0xFF EOP entries (= 0x7F8 dwords). CP will not submit
 208          * more than (EOP entry count - 1) so a queue size of 0x800 dwords
 209          * is safe, giving a maximum field value of 0xA.
 210          */
 211         m->cp_hqd_eop_control |= min(0xA,
 212                 order_base_2(q->eop_ring_buffer_size / 4) - 1);
 213         m->cp_hqd_eop_base_addr_lo =
 214                         lower_32_bits(q->eop_ring_buffer_address >> 8);
 215         m->cp_hqd_eop_base_addr_hi =
 216                         upper_32_bits(q->eop_ring_buffer_address >> 8);
 217
 218         m->cp_hqd_iq_timer = atc_bit << CP_HQD_IQ_TIMER__IQ_ATC__SHIFT |
 219                         mtype << CP_HQD_IQ_TIMER__MTYPE__SHIFT;
 220
 221         m->cp_hqd_vmid = q->vmid;
 222
 223         if (q->format == KFD_QUEUE_FORMAT_AQL) {
 224                 m->cp_hqd_pq_control |= CP_HQD_PQ_CONTROL__NO_UPDATE_RPTR_MASK |
 225                                 2 << CP_HQD_PQ_CONTROL__SLOT_BASED_WPTR__SHIFT;
 226         }
 227
 228         if (mm->dev->cwsr_enabled && q->ctx_save_restore_area_address)
 229                 m->cp_hqd_ctx_save_control =
 230                         atc_bit << CP_HQD_CTX_SAVE_CONTROL__ATC__SHIFT |
 231                         mtype << CP_HQD_CTX_SAVE_CONTROL__MTYPE__SHIFT;
 232
 233         update_cu_mask(mm, mqd, q);
 234         set_priority(m, q);
 235
 236         q->is_active = QUEUE_IS_ACTIVE(*q);
 237 }
 238
 239
 240 static void update_mqd(struct mqd_manager *mm, void *mqd,
 241                         struct queue_properties *q)
 242 {
 243         __update_mqd(mm, mqd, q, MTYPE_CC, 1);
 244 }
 245
 246 static void update_mqd_tonga(struct mqd_manager *mm, void *mqd,
 247                         struct queue_properties *q)
 248 {
 249         __update_mqd(mm, mqd, q, MTYPE_UC, 0);
 250 }
 251
 252 static int destroy_mqd(struct mqd_manager *mm, void *mqd,
 253                         enum kfd_preempt_type type,
 254                         unsigned int timeout, uint32_t pipe_id,
 255                         uint32_t queue_id)
 256 {
 257         return mm->dev->kfd2kgd->hqd_destroy
 258                 (mm->dev->kgd, mqd, type, timeout,
 259                 pipe_id, queue_id);
 260 }
 261
 262 static void free_mqd(struct mqd_manager *mm, void *mqd,
 263                         struct kfd_mem_obj *mqd_mem_obj)
 264 {
 265         kfd_gtt_sa_free(mm->dev, mqd_mem_obj);
 266 }
 267
 268 static bool is_occupied(struct mqd_manager *mm, void *mqd,
 269                         uint64_t queue_address, uint32_t pipe_id,
 270                         uint32_t queue_id)
 271 {
 272         return mm->dev->kfd2kgd->hqd_is_occupied(
 273                 mm->dev->kgd, queue_address,
 274                 pipe_id, queue_id);
 275 }
 276
 277 static int get_wave_state(struct mqd_manager *mm, void *mqd,
 278                           void __user *ctl_stack,
 279                           u32 *ctl_stack_used_size,
 280                           u32 *save_area_used_size)
 281 {
 282         struct vi_mqd *m;
 283
 284         m = get_mqd(mqd);
 285
 286         *ctl_stack_used_size = m->cp_hqd_cntl_stack_size -
 287                 m->cp_hqd_cntl_stack_offset;
 288         *save_area_used_size = m->cp_hqd_wg_state_offset -
 289                 m->cp_hqd_cntl_stack_size;
 290
 291         /* Control stack is not copied to user mode for GFXv8 because
 292          * it's part of the context save area that is already
 293          * accessible to user mode
 294          */
 295
 296         return 0;
 297 }
 298
 299 static void init_mqd_hiq(struct mqd_manager *mm, void **mqd,
 300                         struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
 301                         struct queue_properties *q)
 302 {
 303         struct vi_mqd *m;
 304         init_mqd(mm, mqd, mqd_mem_obj, gart_addr, q);
 305
 306         m = get_mqd(*mqd);
 307
 308         m->cp_hqd_pq_control |= 1 << CP_HQD_PQ_CONTROL__PRIV_STATE__SHIFT |
 309                         1 << CP_HQD_PQ_CONTROL__KMD_QUEUE__SHIFT;
 310 }
 311
 312 static void update_mqd_hiq(struct mqd_manager *mm, void *mqd,
 313                         struct queue_properties *q)
 314 {
 315         __update_mqd(mm, mqd, q, MTYPE_UC, 0);
 316 }
 317
 318 static void init_mqd_sdma(struct mqd_manager *mm, void **mqd,
 319                 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
 320                 struct queue_properties *q)
 321 {
 322         struct vi_sdma_mqd *m;
 323
 324         m = (struct vi_sdma_mqd *) mqd_mem_obj->cpu_ptr;
 325
 326         memset(m, 0, sizeof(struct vi_sdma_mqd));
 327
 328         *mqd = m;
 329         if (gart_addr)
 330                 *gart_addr = mqd_mem_obj->gpu_addr;
 331
 332         mm->update_mqd(mm, m, q);
 333 }
 334
 335 static int load_mqd_sdma(struct mqd_manager *mm, void *mqd,
 336                 uint32_t pipe_id, uint32_t queue_id,
 337                 struct queue_properties *p, struct mm_struct *mms)
 338 {
 339         return mm->dev->kfd2kgd->hqd_sdma_load(mm->dev->kgd, mqd,
 340                                                (uint32_t __user *)p->write_ptr,
 341                                                mms);
 342 }
 343
 344 static void update_mqd_sdma(struct mqd_manager *mm, void *mqd,
 345                 struct queue_properties *q)
 346 {
 347         struct vi_sdma_mqd *m;
 348
 349         m = get_sdma_mqd(mqd);
 350         m->sdmax_rlcx_rb_cntl = order_base_2(q->queue_size / 4)
 351                 << SDMA0_RLC0_RB_CNTL__RB_SIZE__SHIFT |
 352                 q->vmid << SDMA0_RLC0_RB_CNTL__RB_VMID__SHIFT |
 353                 1 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT |
 354                 6 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_TIMER__SHIFT;
 355
 356         m->sdmax_rlcx_rb_base = lower_32_bits(q->queue_address >> 8);
 357         m->sdmax_rlcx_rb_base_hi = upper_32_bits(q->queue_address >> 8);
 358         m->sdmax_rlcx_rb_rptr_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
 359         m->sdmax_rlcx_rb_rptr_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
 360         m->sdmax_rlcx_doorbell =
 361                 q->doorbell_off << SDMA0_RLC0_DOORBELL__OFFSET__SHIFT;
 362
 363         m->sdmax_rlcx_virtual_addr = q->sdma_vm_addr;
 364
 365         m->sdma_engine_id = q->sdma_engine_id;
 366         m->sdma_queue_id = q->sdma_queue_id;
 367
 368         q->is_active = QUEUE_IS_ACTIVE(*q);
 369 }
 370
 371 /*
 372  *  * preempt type here is ignored because there is only one way
 373  *  * to preempt sdma queue
 374  */
 375 static int destroy_mqd_sdma(struct mqd_manager *mm, void *mqd,
 376                 enum kfd_preempt_type type,
 377                 unsigned int timeout, uint32_t pipe_id,
 378                 uint32_t queue_id)
 379 {
 380         return mm->dev->kfd2kgd->hqd_sdma_destroy(mm->dev->kgd, mqd, timeout);
 381 }
 382
 383 static bool is_occupied_sdma(struct mqd_manager *mm, void *mqd,
 384                 uint64_t queue_address, uint32_t pipe_id,
 385                 uint32_t queue_id)
 386 {
 387         return mm->dev->kfd2kgd->hqd_sdma_is_occupied(mm->dev->kgd, mqd);
 388 }
 389
 390 #if defined(CONFIG_DEBUG_FS)
 391
 392 static int debugfs_show_mqd(struct seq_file *m, void *data)
 393 {
 394         seq_hex_dump(m, "    ", DUMP_PREFIX_OFFSET, 32, 4,
 395                      data, sizeof(struct vi_mqd), false);
 396         return 0;
 397 }
 398
 399 static int debugfs_show_mqd_sdma(struct seq_file *m, void *data)
 400 {
 401         seq_hex_dump(m, "    ", DUMP_PREFIX_OFFSET, 32, 4,
 402                      data, sizeof(struct vi_sdma_mqd), false);
 403         return 0;
 404 }
 405
 406 #endif
 407
 408 struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type,
 409                 struct kfd_dev *dev)
 410 {
 411         struct mqd_manager *mqd;
 412
 413         if (WARN_ON(type >= KFD_MQD_TYPE_MAX))
 414                 return NULL;
 415
 416         mqd = kzalloc(sizeof(*mqd), GFP_KERNEL);
 417         if (!mqd)
 418                 return NULL;
 419
 420         mqd->dev = dev;
 421
 422         switch (type) {
 423         case KFD_MQD_TYPE_CP:
 424                 mqd->allocate_mqd = allocate_mqd;
 425                 mqd->init_mqd = init_mqd;
 426                 mqd->free_mqd = free_mqd;
 427                 mqd->load_mqd = load_mqd;
 428                 mqd->update_mqd = update_mqd;
 429                 mqd->destroy_mqd = destroy_mqd;
 430                 mqd->is_occupied = is_occupied;
 431                 mqd->get_wave_state = get_wave_state;
 432                 mqd->mqd_size = sizeof(struct vi_mqd);
 433 #if defined(CONFIG_DEBUG_FS)
 434                 mqd->debugfs_show_mqd = debugfs_show_mqd;
 435 #endif
 436                 break;
 437         case KFD_MQD_TYPE_HIQ:
 438                 mqd->allocate_mqd = allocate_hiq_mqd;
 439                 mqd->init_mqd = init_mqd_hiq;
 440                 mqd->free_mqd = free_mqd_hiq_sdma;
 441                 mqd->load_mqd = load_mqd;
 442                 mqd->update_mqd = update_mqd_hiq;
 443                 mqd->destroy_mqd = destroy_mqd;
 444                 mqd->is_occupied = is_occupied;
 445                 mqd->mqd_size = sizeof(struct vi_mqd);
 446 #if defined(CONFIG_DEBUG_FS)
 447                 mqd->debugfs_show_mqd = debugfs_show_mqd;
 448 #endif
 449                 break;
 450         case KFD_MQD_TYPE_DIQ:
 451                 mqd->allocate_mqd = allocate_mqd;
 452                 mqd->init_mqd = init_mqd_hiq;
 453                 mqd->free_mqd = free_mqd;
 454                 mqd->load_mqd = load_mqd;
 455                 mqd->update_mqd = update_mqd_hiq;
 456                 mqd->destroy_mqd = destroy_mqd;
 457                 mqd->is_occupied = is_occupied;
 458                 mqd->mqd_size = sizeof(struct vi_mqd);
 459 #if defined(CONFIG_DEBUG_FS)
 460                 mqd->debugfs_show_mqd = debugfs_show_mqd;
 461 #endif
 462                 break;
 463         case KFD_MQD_TYPE_SDMA:
 464                 mqd->allocate_mqd = allocate_sdma_mqd;
 465                 mqd->init_mqd = init_mqd_sdma;
 466                 mqd->free_mqd = free_mqd_hiq_sdma;
 467                 mqd->load_mqd = load_mqd_sdma;
 468                 mqd->update_mqd = update_mqd_sdma;
 469                 mqd->destroy_mqd = destroy_mqd_sdma;
 470                 mqd->is_occupied = is_occupied_sdma;
 471                 mqd->mqd_size = sizeof(struct vi_sdma_mqd);
 472 #if defined(CONFIG_DEBUG_FS)
 473                 mqd->debugfs_show_mqd = debugfs_show_mqd_sdma;
 474 #endif
 475                 break;
 476         default:
 477                 kfree(mqd);
 478                 return NULL;
 479         }
 480
 481         return mqd;
 482 }
 483
 484 struct mqd_manager *mqd_manager_init_vi_tonga(enum KFD_MQD_TYPE type,
 485                         struct kfd_dev *dev)
 486 {
 487         struct mqd_manager *mqd;
 488
 489         mqd = mqd_manager_init_vi(type, dev);
 490         if (!mqd)
 491                 return NULL;
 492         if (type == KFD_MQD_TYPE_CP)
 493                 mqd->update_mqd = update_mqd_tonga;
 494         return mqd;
 495 }