root/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_cik.c

DEFINITIONS

1. get_mqd
2. get_sdma_mqd
3. update_cu_mask
4. set_priority
5. allocate_mqd
6. init_mqd
7. init_mqd_sdma
8. free_mqd
9. load_mqd
10. load_mqd_sdma
11. __update_mqd
12. update_mqd
13. update_mqd_hawaii
14. update_mqd_sdma
15. destroy_mqd
16. destroy_mqd_sdma
17. is_occupied
18. is_occupied_sdma
19. init_mqd_hiq
20. update_mqd_hiq
21. debugfs_show_mqd
22. debugfs_show_mqd_sdma
23. mqd_manager_init_cik
24. mqd_manager_init_cik_hawaii

   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 "cik_regs.h"
  31 #include "cik_structs.h"
  32 #include "oss/oss_2_4_sh_mask.h"
  33 
  34 static inline struct cik_mqd *get_mqd(void *mqd)
  35 {
  36         return (struct cik_mqd *)mqd;
  37 }
  38 
  39 static inline struct cik_sdma_rlc_registers *get_sdma_mqd(void *mqd)
  40 {
  41         return (struct cik_sdma_rlc_registers *)mqd;
  42 }
  43 
  44 static void update_cu_mask(struct mqd_manager *mm, void *mqd,
  45                         struct queue_properties *q)
  46 {
  47         struct cik_mqd *m;
  48         uint32_t se_mask[4] = {0}; /* 4 is the max # of SEs */
  49 
  50         if (q->cu_mask_count == 0)
  51                 return;
  52 
  53         mqd_symmetrically_map_cu_mask(mm,
  54                 q->cu_mask, q->cu_mask_count, se_mask);
  55 
  56         m = get_mqd(mqd);
  57         m->compute_static_thread_mgmt_se0 = se_mask[0];
  58         m->compute_static_thread_mgmt_se1 = se_mask[1];
  59         m->compute_static_thread_mgmt_se2 = se_mask[2];
  60         m->compute_static_thread_mgmt_se3 = se_mask[3];
  61 
  62         pr_debug("Update cu mask to %#x %#x %#x %#x\n",
  63                 m->compute_static_thread_mgmt_se0,
  64                 m->compute_static_thread_mgmt_se1,
  65                 m->compute_static_thread_mgmt_se2,
  66                 m->compute_static_thread_mgmt_se3);
  67 }
  68 
  69 static void set_priority(struct cik_mqd *m, struct queue_properties *q)
  70 {
  71         m->cp_hqd_pipe_priority = pipe_priority_map[q->priority];
  72         m->cp_hqd_queue_priority = q->priority;
  73 }
  74 
  75 static struct kfd_mem_obj *allocate_mqd(struct kfd_dev *kfd,
  76                                         struct queue_properties *q)
  77 {
  78         struct kfd_mem_obj *mqd_mem_obj;
  79 
  80         if (kfd_gtt_sa_allocate(kfd, sizeof(struct cik_mqd),
  81                         &mqd_mem_obj))
  82                 return NULL;
  83 
  84         return mqd_mem_obj;
  85 }
  86 
  87 static void init_mqd(struct mqd_manager *mm, void **mqd,
  88                 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
  89                 struct queue_properties *q)
  90 {
  91         uint64_t addr;
  92         struct cik_mqd *m;
  93 
  94         m = (struct cik_mqd *) mqd_mem_obj->cpu_ptr;
  95         addr = mqd_mem_obj->gpu_addr;
  96 
  97         memset(m, 0, ALIGN(sizeof(struct cik_mqd), 256));
  98 
  99         m->header = 0xC0310800;
 100         m->compute_pipelinestat_enable = 1;
 101         m->compute_static_thread_mgmt_se0 = 0xFFFFFFFF;
 102         m->compute_static_thread_mgmt_se1 = 0xFFFFFFFF;
 103         m->compute_static_thread_mgmt_se2 = 0xFFFFFFFF;
 104         m->compute_static_thread_mgmt_se3 = 0xFFFFFFFF;
 105 
 106         /*
 107          * Make sure to use the last queue state saved on mqd when the cp
 108          * reassigns the queue, so when queue is switched on/off (e.g over
 109          * subscription or quantum timeout) the context will be consistent
 110          */
 111         m->cp_hqd_persistent_state =
 112                                 DEFAULT_CP_HQD_PERSISTENT_STATE | PRELOAD_REQ;
 113 
 114         m->cp_mqd_control             = MQD_CONTROL_PRIV_STATE_EN;
 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 = QUANTUM_EN | QUANTUM_SCALE_1MS |
 119                                 QUANTUM_DURATION(10);
 120 
 121         /*
 122          * Pipe Priority
 123          * Identifies the pipe relative priority when this queue is connected
 124          * to the pipeline. The pipe priority is against the GFX pipe and HP3D.
 125          * In KFD we are using a fixed pipe priority set to CS_MEDIUM.
 126          * 0 = CS_LOW (typically below GFX)
 127          * 1 = CS_MEDIUM (typically between HP3D and GFX
 128          * 2 = CS_HIGH (typically above HP3D)
 129          */
 130         set_priority(m, q);
 131 
 132         if (q->format == KFD_QUEUE_FORMAT_AQL)
 133                 m->cp_hqd_iq_rptr = AQL_ENABLE;
 134 
 135         *mqd = m;
 136         if (gart_addr)
 137                 *gart_addr = addr;
 138         mm->update_mqd(mm, m, q);
 139 }
 140 
 141 static void init_mqd_sdma(struct mqd_manager *mm, void **mqd,
 142                         struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
 143                         struct queue_properties *q)
 144 {
 145         struct cik_sdma_rlc_registers *m;
 146 
 147         m = (struct cik_sdma_rlc_registers *) mqd_mem_obj->cpu_ptr;
 148 
 149         memset(m, 0, sizeof(struct cik_sdma_rlc_registers));
 150 
 151         *mqd = m;
 152         if (gart_addr)
 153                 *gart_addr = mqd_mem_obj->gpu_addr;
 154 
 155         mm->update_mqd(mm, m, q);
 156 }
 157 
 158 static void free_mqd(struct mqd_manager *mm, void *mqd,
 159                         struct kfd_mem_obj *mqd_mem_obj)
 160 {
 161         kfd_gtt_sa_free(mm->dev, mqd_mem_obj);
 162 }
 163 
 164 
 165 static int load_mqd(struct mqd_manager *mm, void *mqd, uint32_t pipe_id,
 166                     uint32_t queue_id, struct queue_properties *p,
 167                     struct mm_struct *mms)
 168 {
 169         /* AQL write pointer counts in 64B packets, PM4/CP counts in dwords. */
 170         uint32_t wptr_shift = (p->format == KFD_QUEUE_FORMAT_AQL ? 4 : 0);
 171         uint32_t wptr_mask = (uint32_t)((p->queue_size / 4) - 1);
 172 
 173         return mm->dev->kfd2kgd->hqd_load(mm->dev->kgd, mqd, pipe_id, queue_id,
 174                                           (uint32_t __user *)p->write_ptr,
 175                                           wptr_shift, wptr_mask, mms);
 176 }
 177 
 178 static int load_mqd_sdma(struct mqd_manager *mm, void *mqd,
 179                          uint32_t pipe_id, uint32_t queue_id,
 180                          struct queue_properties *p, struct mm_struct *mms)
 181 {
 182         return mm->dev->kfd2kgd->hqd_sdma_load(mm->dev->kgd, mqd,
 183                                                (uint32_t __user *)p->write_ptr,
 184                                                mms);
 185 }
 186 
 187 static void __update_mqd(struct mqd_manager *mm, void *mqd,
 188                         struct queue_properties *q, unsigned int atc_bit)
 189 {
 190         struct cik_mqd *m;
 191 
 192         m = get_mqd(mqd);
 193         m->cp_hqd_pq_control = DEFAULT_RPTR_BLOCK_SIZE |
 194                                 DEFAULT_MIN_AVAIL_SIZE;
 195         m->cp_hqd_ib_control = DEFAULT_MIN_IB_AVAIL_SIZE;
 196         if (atc_bit) {
 197                 m->cp_hqd_pq_control |= PQ_ATC_EN;
 198                 m->cp_hqd_ib_control |= IB_ATC_EN;
 199         }
 200 
 201         /*
 202          * Calculating queue size which is log base 2 of actual queue size -1
 203          * dwords and another -1 for ffs
 204          */
 205         m->cp_hqd_pq_control |= order_base_2(q->queue_size / 4) - 1;
 206         m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
 207         m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);
 208         m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
 209         m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
 210         m->cp_hqd_pq_doorbell_control = DOORBELL_OFFSET(q->doorbell_off);
 211 
 212         m->cp_hqd_vmid = q->vmid;
 213 
 214         if (q->format == KFD_QUEUE_FORMAT_AQL)
 215                 m->cp_hqd_pq_control |= NO_UPDATE_RPTR;
 216 
 217         update_cu_mask(mm, mqd, q);
 218         set_priority(m, q);
 219 
 220         q->is_active = QUEUE_IS_ACTIVE(*q);
 221 }
 222 
 223 static void update_mqd(struct mqd_manager *mm, void *mqd,
 224                         struct queue_properties *q)
 225 {
 226         __update_mqd(mm, mqd, q, 1);
 227 }
 228 
 229 static void update_mqd_hawaii(struct mqd_manager *mm, void *mqd,
 230                         struct queue_properties *q)
 231 {
 232         __update_mqd(mm, mqd, q, 0);
 233 }
 234 
 235 static void update_mqd_sdma(struct mqd_manager *mm, void *mqd,
 236                                 struct queue_properties *q)
 237 {
 238         struct cik_sdma_rlc_registers *m;
 239 
 240         m = get_sdma_mqd(mqd);
 241         m->sdma_rlc_rb_cntl = order_base_2(q->queue_size / 4)
 242                         << SDMA0_RLC0_RB_CNTL__RB_SIZE__SHIFT |
 243                         q->vmid << SDMA0_RLC0_RB_CNTL__RB_VMID__SHIFT |
 244                         1 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT |
 245                         6 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_TIMER__SHIFT;
 246 
 247         m->sdma_rlc_rb_base = lower_32_bits(q->queue_address >> 8);
 248         m->sdma_rlc_rb_base_hi = upper_32_bits(q->queue_address >> 8);
 249         m->sdma_rlc_rb_rptr_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
 250         m->sdma_rlc_rb_rptr_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
 251         m->sdma_rlc_doorbell =
 252                 q->doorbell_off << SDMA0_RLC0_DOORBELL__OFFSET__SHIFT;
 253 
 254         m->sdma_rlc_virtual_addr = q->sdma_vm_addr;
 255 
 256         m->sdma_engine_id = q->sdma_engine_id;
 257         m->sdma_queue_id = q->sdma_queue_id;
 258 
 259         q->is_active = QUEUE_IS_ACTIVE(*q);
 260 }
 261 
 262 static int destroy_mqd(struct mqd_manager *mm, void *mqd,
 263                         enum kfd_preempt_type type,
 264                         unsigned int timeout, uint32_t pipe_id,
 265                         uint32_t queue_id)
 266 {
 267         return mm->dev->kfd2kgd->hqd_destroy(mm->dev->kgd, mqd, type, timeout,
 268                                         pipe_id, queue_id);
 269 }
 270 
 271 /*
 272  * preempt type here is ignored because there is only one way
 273  * to preempt sdma queue
 274  */
 275 static int destroy_mqd_sdma(struct mqd_manager *mm, void *mqd,
 276                                 enum kfd_preempt_type type,
 277                                 unsigned int timeout, uint32_t pipe_id,
 278                                 uint32_t queue_id)
 279 {
 280         return mm->dev->kfd2kgd->hqd_sdma_destroy(mm->dev->kgd, mqd, timeout);
 281 }
 282 
 283 static bool is_occupied(struct mqd_manager *mm, void *mqd,
 284                         uint64_t queue_address, uint32_t pipe_id,
 285                         uint32_t queue_id)
 286 {
 287 
 288         return mm->dev->kfd2kgd->hqd_is_occupied(mm->dev->kgd, queue_address,
 289                                         pipe_id, queue_id);
 290 
 291 }
 292 
 293 static bool is_occupied_sdma(struct mqd_manager *mm, void *mqd,
 294                         uint64_t queue_address, uint32_t pipe_id,
 295                         uint32_t queue_id)
 296 {
 297         return mm->dev->kfd2kgd->hqd_sdma_is_occupied(mm->dev->kgd, mqd);
 298 }
 299 
 300 /*
 301  * HIQ MQD Implementation, concrete implementation for HIQ MQD implementation.
 302  * The HIQ queue in Kaveri is using the same MQD structure as all the user mode
 303  * queues but with different initial values.
 304  */
 305 
 306 static void init_mqd_hiq(struct mqd_manager *mm, void **mqd,
 307                 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
 308                 struct queue_properties *q)
 309 {
 310         init_mqd(mm, mqd, mqd_mem_obj, gart_addr, q);
 311 }
 312 
 313 static void update_mqd_hiq(struct mqd_manager *mm, void *mqd,
 314                                 struct queue_properties *q)
 315 {
 316         struct cik_mqd *m;
 317 
 318         m = get_mqd(mqd);
 319         m->cp_hqd_pq_control = DEFAULT_RPTR_BLOCK_SIZE |
 320                                 DEFAULT_MIN_AVAIL_SIZE |
 321                                 PRIV_STATE |
 322                                 KMD_QUEUE;
 323 
 324         /*
 325          * Calculating queue size which is log base 2 of actual queue
 326          * size -1 dwords
 327          */
 328         m->cp_hqd_pq_control |= order_base_2(q->queue_size / 4) - 1;
 329         m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
 330         m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);
 331         m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
 332         m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
 333         m->cp_hqd_pq_doorbell_control = DOORBELL_OFFSET(q->doorbell_off);
 334 
 335         m->cp_hqd_vmid = q->vmid;
 336 
 337         q->is_active = QUEUE_IS_ACTIVE(*q);
 338 
 339         set_priority(m, q);
 340 }
 341 
 342 #if defined(CONFIG_DEBUG_FS)
 343 
 344 static int debugfs_show_mqd(struct seq_file *m, void *data)
 345 {
 346         seq_hex_dump(m, "    ", DUMP_PREFIX_OFFSET, 32, 4,
 347                      data, sizeof(struct cik_mqd), false);
 348         return 0;
 349 }
 350 
 351 static int debugfs_show_mqd_sdma(struct seq_file *m, void *data)
 352 {
 353         seq_hex_dump(m, "    ", DUMP_PREFIX_OFFSET, 32, 4,
 354                      data, sizeof(struct cik_sdma_rlc_registers), false);
 355         return 0;
 356 }
 357 
 358 #endif
 359 
 360 
 361 struct mqd_manager *mqd_manager_init_cik(enum KFD_MQD_TYPE type,
 362                 struct kfd_dev *dev)
 363 {
 364         struct mqd_manager *mqd;
 365 
 366         if (WARN_ON(type >= KFD_MQD_TYPE_MAX))
 367                 return NULL;
 368 
 369         mqd = kzalloc(sizeof(*mqd), GFP_KERNEL);
 370         if (!mqd)
 371                 return NULL;
 372 
 373         mqd->dev = dev;
 374 
 375         switch (type) {
 376         case KFD_MQD_TYPE_CP:
 377         case KFD_MQD_TYPE_COMPUTE:
 378                 mqd->allocate_mqd = allocate_mqd;
 379                 mqd->init_mqd = init_mqd;
 380                 mqd->free_mqd = free_mqd;
 381                 mqd->load_mqd = load_mqd;
 382                 mqd->update_mqd = update_mqd;
 383                 mqd->destroy_mqd = destroy_mqd;
 384                 mqd->is_occupied = is_occupied;
 385                 mqd->mqd_size = sizeof(struct cik_mqd);
 386 #if defined(CONFIG_DEBUG_FS)
 387                 mqd->debugfs_show_mqd = debugfs_show_mqd;
 388 #endif
 389                 break;
 390         case KFD_MQD_TYPE_HIQ:
 391                 mqd->allocate_mqd = allocate_hiq_mqd;
 392                 mqd->init_mqd = init_mqd_hiq;
 393                 mqd->free_mqd = free_mqd_hiq_sdma;
 394                 mqd->load_mqd = load_mqd;
 395                 mqd->update_mqd = update_mqd_hiq;
 396                 mqd->destroy_mqd = destroy_mqd;
 397                 mqd->is_occupied = is_occupied;
 398                 mqd->mqd_size = sizeof(struct cik_mqd);
 399 #if defined(CONFIG_DEBUG_FS)
 400                 mqd->debugfs_show_mqd = debugfs_show_mqd;
 401 #endif
 402                 break;
 403         case KFD_MQD_TYPE_DIQ:
 404                 mqd->allocate_mqd = allocate_hiq_mqd;
 405                 mqd->init_mqd = init_mqd_hiq;
 406                 mqd->free_mqd = free_mqd;
 407                 mqd->load_mqd = load_mqd;
 408                 mqd->update_mqd = update_mqd_hiq;
 409                 mqd->destroy_mqd = destroy_mqd;
 410                 mqd->is_occupied = is_occupied;
 411                 mqd->mqd_size = sizeof(struct cik_mqd);
 412 #if defined(CONFIG_DEBUG_FS)
 413                 mqd->debugfs_show_mqd = debugfs_show_mqd;
 414 #endif
 415                 break;
 416         case KFD_MQD_TYPE_SDMA:
 417                 mqd->allocate_mqd = allocate_sdma_mqd;
 418                 mqd->init_mqd = init_mqd_sdma;
 419                 mqd->free_mqd = free_mqd_hiq_sdma;
 420                 mqd->load_mqd = load_mqd_sdma;
 421                 mqd->update_mqd = update_mqd_sdma;
 422                 mqd->destroy_mqd = destroy_mqd_sdma;
 423                 mqd->is_occupied = is_occupied_sdma;
 424                 mqd->mqd_size = sizeof(struct cik_sdma_rlc_registers);
 425 #if defined(CONFIG_DEBUG_FS)
 426                 mqd->debugfs_show_mqd = debugfs_show_mqd_sdma;
 427 #endif
 428                 break;
 429         default:
 430                 kfree(mqd);
 431                 return NULL;
 432         }
 433 
 434         return mqd;
 435 }
 436 
 437 struct mqd_manager *mqd_manager_init_cik_hawaii(enum KFD_MQD_TYPE type,
 438                         struct kfd_dev *dev)
 439 {
 440         struct mqd_manager *mqd;
 441 
 442         mqd = mqd_manager_init_cik(type, dev);
 443         if (!mqd)
 444                 return NULL;
 445         if ((type == KFD_MQD_TYPE_CP) || (type == KFD_MQD_TYPE_COMPUTE))
 446                 mqd->update_mqd = update_mqd_hawaii;
 447         return mqd;
 448 }