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 "vi_structs.h"
32#include "gca/gfx_8_0_sh_mask.h"
33#include "gca/gfx_8_0_enum.h"
34#include "oss/oss_3_0_sh_mask.h"
35
36#define CP_MQD_CONTROL__PRIV_STATE__SHIFT 0x8
37
38static inline struct vi_mqd *get_mqd(void *mqd)
39{
40 return (struct vi_mqd *)mqd;
41}
42
43static inline struct vi_sdma_mqd *get_sdma_mqd(void *mqd)
44{
45 return (struct vi_sdma_mqd *)mqd;
46}
47
48static void update_cu_mask(struct mqd_manager *mm, void *mqd,
49 struct mqd_update_info *minfo)
50{
51 struct vi_mqd *m;
52 uint32_t se_mask[4] = {0}; /* 4 is the max # of SEs */
53
54 if (!minfo || !minfo->cu_mask.ptr)
55 return;
56
57 mqd_symmetrically_map_cu_mask(mm,
58 cu_mask: minfo->cu_mask.ptr, cu_mask_count: minfo->cu_mask.count, se_mask, inst: 0);
59
60 m = get_mqd(mqd);
61 m->compute_static_thread_mgmt_se0 = se_mask[0];
62 m->compute_static_thread_mgmt_se1 = se_mask[1];
63 m->compute_static_thread_mgmt_se2 = se_mask[2];
64 m->compute_static_thread_mgmt_se3 = se_mask[3];
65
66 pr_debug("Update cu mask to %#x %#x %#x %#x\n",
67 m->compute_static_thread_mgmt_se0,
68 m->compute_static_thread_mgmt_se1,
69 m->compute_static_thread_mgmt_se2,
70 m->compute_static_thread_mgmt_se3);
71}
72
73static void set_priority(struct vi_mqd *m, struct queue_properties *q)
74{
75 m->cp_hqd_pipe_priority = pipe_priority_map[q->priority];
76 m->cp_hqd_queue_priority = q->priority;
77}
78
79static struct kfd_mem_obj *allocate_mqd(struct kfd_node *kfd,
80 struct queue_properties *q)
81{
82 struct kfd_mem_obj *mqd_mem_obj;
83
84 if (kfd_gtt_sa_allocate(node: kfd, size: sizeof(struct vi_mqd),
85 mem_obj: &mqd_mem_obj))
86 return NULL;
87
88 return mqd_mem_obj;
89}
90
91static void init_mqd(struct mqd_manager *mm, void **mqd,
92 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
93 struct queue_properties *q)
94{
95 uint64_t addr;
96 struct vi_mqd *m;
97
98 m = (struct vi_mqd *) mqd_mem_obj->cpu_ptr;
99 addr = mqd_mem_obj->gpu_addr;
100
101 memset(m, 0, sizeof(struct vi_mqd));
102
103 m->header = 0xC0310800;
104 m->compute_pipelinestat_enable = 1;
105 m->compute_static_thread_mgmt_se0 = 0xFFFFFFFF;
106 m->compute_static_thread_mgmt_se1 = 0xFFFFFFFF;
107 m->compute_static_thread_mgmt_se2 = 0xFFFFFFFF;
108 m->compute_static_thread_mgmt_se3 = 0xFFFFFFFF;
109
110 m->cp_hqd_persistent_state = CP_HQD_PERSISTENT_STATE__PRELOAD_REQ_MASK |
111 0x53 << CP_HQD_PERSISTENT_STATE__PRELOAD_SIZE__SHIFT;
112
113 m->cp_mqd_control = 1 << CP_MQD_CONTROL__PRIV_STATE__SHIFT |
114 MTYPE_UC << CP_MQD_CONTROL__MTYPE__SHIFT;
115
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 = 1 << CP_HQD_QUANTUM__QUANTUM_EN__SHIFT |
120 1 << CP_HQD_QUANTUM__QUANTUM_SCALE__SHIFT |
121 1 << CP_HQD_QUANTUM__QUANTUM_DURATION__SHIFT;
122
123 set_priority(m, q);
124 m->cp_hqd_eop_rptr = 1 << CP_HQD_EOP_RPTR__INIT_FETCHER__SHIFT;
125
126 if (q->format == KFD_QUEUE_FORMAT_AQL)
127 m->cp_hqd_iq_rptr = 1;
128
129 if (q->tba_addr) {
130 m->compute_tba_lo = lower_32_bits(q->tba_addr >> 8);
131 m->compute_tba_hi = upper_32_bits(q->tba_addr >> 8);
132 m->compute_tma_lo = lower_32_bits(q->tma_addr >> 8);
133 m->compute_tma_hi = upper_32_bits(q->tma_addr >> 8);
134 m->compute_pgm_rsrc2 |=
135 (1 << COMPUTE_PGM_RSRC2__TRAP_PRESENT__SHIFT);
136 }
137
138 if (mm->dev->kfd->cwsr_enabled && q->ctx_save_restore_area_address) {
139 m->cp_hqd_persistent_state |=
140 (1 << CP_HQD_PERSISTENT_STATE__QSWITCH_MODE__SHIFT);
141 m->cp_hqd_ctx_save_base_addr_lo =
142 lower_32_bits(q->ctx_save_restore_area_address);
143 m->cp_hqd_ctx_save_base_addr_hi =
144 upper_32_bits(q->ctx_save_restore_area_address);
145 m->cp_hqd_ctx_save_size = q->ctx_save_restore_area_size;
146 m->cp_hqd_cntl_stack_size = q->ctl_stack_size;
147 m->cp_hqd_cntl_stack_offset = q->ctl_stack_size;
148 m->cp_hqd_wg_state_offset = q->ctl_stack_size;
149 }
150
151 *mqd = m;
152 if (gart_addr)
153 *gart_addr = addr;
154 mm->update_mqd(mm, m, q, NULL);
155}
156
157static int load_mqd(struct mqd_manager *mm, void *mqd,
158 uint32_t pipe_id, uint32_t queue_id,
159 struct queue_properties *p, struct mm_struct *mms)
160{
161 /* AQL write pointer counts in 64B packets, PM4/CP counts in dwords. */
162 uint32_t wptr_shift = (p->format == KFD_QUEUE_FORMAT_AQL ? 4 : 0);
163 uint32_t wptr_mask = (uint32_t)((p->queue_size / 4) - 1);
164
165 return mm->dev->kfd2kgd->hqd_load(mm->dev->adev, mqd, pipe_id, queue_id,
166 (uint32_t __user *)p->write_ptr,
167 wptr_shift, wptr_mask, mms, 0);
168}
169
170static void __update_mqd(struct mqd_manager *mm, void *mqd,
171 struct queue_properties *q, struct mqd_update_info *minfo,
172 unsigned int mtype, unsigned int atc_bit)
173{
174 struct vi_mqd *m;
175
176 m = get_mqd(mqd);
177
178 m->cp_hqd_pq_control = 5 << CP_HQD_PQ_CONTROL__RPTR_BLOCK_SIZE__SHIFT |
179 atc_bit << CP_HQD_PQ_CONTROL__PQ_ATC__SHIFT |
180 mtype << CP_HQD_PQ_CONTROL__MTYPE__SHIFT;
181 m->cp_hqd_pq_control |= order_base_2(q->queue_size / 4) - 1;
182 pr_debug("cp_hqd_pq_control 0x%x\n", m->cp_hqd_pq_control);
183
184 m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
185 m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);
186
187 m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
188 m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
189 m->cp_hqd_pq_wptr_poll_addr_lo = lower_32_bits((uint64_t)q->write_ptr);
190 m->cp_hqd_pq_wptr_poll_addr_hi = upper_32_bits((uint64_t)q->write_ptr);
191
192 m->cp_hqd_pq_doorbell_control =
193 q->doorbell_off <<
194 CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET__SHIFT;
195 pr_debug("cp_hqd_pq_doorbell_control 0x%x\n",
196 m->cp_hqd_pq_doorbell_control);
197
198 m->cp_hqd_eop_control = atc_bit << CP_HQD_EOP_CONTROL__EOP_ATC__SHIFT |
199 mtype << CP_HQD_EOP_CONTROL__MTYPE__SHIFT;
200
201 m->cp_hqd_ib_control = atc_bit << CP_HQD_IB_CONTROL__IB_ATC__SHIFT |
202 3 << CP_HQD_IB_CONTROL__MIN_IB_AVAIL_SIZE__SHIFT |
203 mtype << CP_HQD_IB_CONTROL__MTYPE__SHIFT;
204
205 /*
206 * HW does not clamp this field correctly. Maximum EOP queue size
207 * is constrained by per-SE EOP done signal count, which is 8-bit.
208 * Limit is 0xFF EOP entries (= 0x7F8 dwords). CP will not submit
209 * more than (EOP entry count - 1) so a queue size of 0x800 dwords
210 * is safe, giving a maximum field value of 0xA.
211 */
212 m->cp_hqd_eop_control |= min(0xA,
213 order_base_2(q->eop_ring_buffer_size / 4) - 1);
214 m->cp_hqd_eop_base_addr_lo =
215 lower_32_bits(q->eop_ring_buffer_address >> 8);
216 m->cp_hqd_eop_base_addr_hi =
217 upper_32_bits(q->eop_ring_buffer_address >> 8);
218
219 m->cp_hqd_iq_timer = atc_bit << CP_HQD_IQ_TIMER__IQ_ATC__SHIFT |
220 mtype << CP_HQD_IQ_TIMER__MTYPE__SHIFT;
221
222 m->cp_hqd_vmid = q->vmid;
223
224 if (q->format == KFD_QUEUE_FORMAT_AQL) {
225 m->cp_hqd_pq_control |= CP_HQD_PQ_CONTROL__NO_UPDATE_RPTR_MASK |
226 2 << CP_HQD_PQ_CONTROL__SLOT_BASED_WPTR__SHIFT;
227 }
228
229 if (mm->dev->kfd->cwsr_enabled && q->ctx_save_restore_area_address)
230 m->cp_hqd_ctx_save_control =
231 atc_bit << CP_HQD_CTX_SAVE_CONTROL__ATC__SHIFT |
232 mtype << CP_HQD_CTX_SAVE_CONTROL__MTYPE__SHIFT;
233
234 update_cu_mask(mm, mqd, minfo);
235 set_priority(m, q);
236
237 q->is_active = QUEUE_IS_ACTIVE(*q);
238}
239
240static bool check_preemption_failed(struct mqd_manager *mm, void *mqd)
241{
242 struct vi_mqd *m = (struct vi_mqd *)mqd;
243
244 return kfd_check_hiq_mqd_doorbell_id(node: mm->dev, doorbell_id: m->queue_doorbell_id0, inst: 0);
245}
246
247static void update_mqd(struct mqd_manager *mm, void *mqd,
248 struct queue_properties *q,
249 struct mqd_update_info *minfo)
250{
251 __update_mqd(mm, mqd, q, minfo, mtype: MTYPE_UC, atc_bit: 0);
252}
253
254static int get_wave_state(struct mqd_manager *mm, void *mqd,
255 struct queue_properties *q,
256 void __user *ctl_stack,
257 u32 *ctl_stack_used_size,
258 u32 *save_area_used_size)
259{
260 struct vi_mqd *m;
261
262 m = get_mqd(mqd);
263
264 *ctl_stack_used_size = m->cp_hqd_cntl_stack_size -
265 m->cp_hqd_cntl_stack_offset;
266 *save_area_used_size = m->cp_hqd_wg_state_offset -
267 m->cp_hqd_cntl_stack_size;
268
269 /* Control stack is not copied to user mode for GFXv8 because
270 * it's part of the context save area that is already
271 * accessible to user mode
272 */
273
274 return 0;
275}
276
277static void get_checkpoint_info(struct mqd_manager *mm, void *mqd, u32 *ctl_stack_size)
278{
279 /* Control stack is stored in user mode */
280 *ctl_stack_size = 0;
281}
282
283static void checkpoint_mqd(struct mqd_manager *mm, void *mqd, void *mqd_dst, void *ctl_stack_dst)
284{
285 struct vi_mqd *m;
286
287 m = get_mqd(mqd);
288
289 memcpy(mqd_dst, m, sizeof(struct vi_mqd));
290}
291
292static void restore_mqd(struct mqd_manager *mm, void **mqd,
293 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
294 struct queue_properties *qp,
295 const void *mqd_src,
296 const void *ctl_stack_src, const u32 ctl_stack_size)
297{
298 uint64_t addr;
299 struct vi_mqd *m;
300
301 m = (struct vi_mqd *) mqd_mem_obj->cpu_ptr;
302 addr = mqd_mem_obj->gpu_addr;
303
304 memcpy(m, mqd_src, sizeof(*m));
305
306 *mqd = m;
307 if (gart_addr)
308 *gart_addr = addr;
309
310 m->cp_hqd_pq_doorbell_control =
311 qp->doorbell_off <<
312 CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET__SHIFT;
313 pr_debug("cp_hqd_pq_doorbell_control 0x%x\n",
314 m->cp_hqd_pq_doorbell_control);
315
316 qp->is_active = 0;
317}
318
319static void init_mqd_hiq(struct mqd_manager *mm, void **mqd,
320 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
321 struct queue_properties *q)
322{
323 struct vi_mqd *m;
324
325 init_mqd(mm, mqd, mqd_mem_obj, gart_addr, q);
326
327 m = get_mqd(mqd: *mqd);
328
329 m->cp_hqd_pq_control |= 1 << CP_HQD_PQ_CONTROL__PRIV_STATE__SHIFT |
330 1 << CP_HQD_PQ_CONTROL__KMD_QUEUE__SHIFT;
331}
332
333static void update_mqd_hiq(struct mqd_manager *mm, void *mqd,
334 struct queue_properties *q,
335 struct mqd_update_info *minfo)
336{
337 __update_mqd(mm, mqd, q, minfo, mtype: MTYPE_UC, atc_bit: 0);
338}
339
340static void init_mqd_sdma(struct mqd_manager *mm, void **mqd,
341 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
342 struct queue_properties *q)
343{
344 struct vi_sdma_mqd *m;
345
346 m = (struct vi_sdma_mqd *) mqd_mem_obj->cpu_ptr;
347
348 memset(m, 0, sizeof(struct vi_sdma_mqd));
349
350 *mqd = m;
351 if (gart_addr)
352 *gart_addr = mqd_mem_obj->gpu_addr;
353
354 mm->update_mqd(mm, m, q, NULL);
355}
356
357static void update_mqd_sdma(struct mqd_manager *mm, void *mqd,
358 struct queue_properties *q,
359 struct mqd_update_info *minfo)
360{
361 struct vi_sdma_mqd *m;
362
363 m = get_sdma_mqd(mqd);
364 m->sdmax_rlcx_rb_cntl = order_base_2(q->queue_size / 4)
365 << SDMA0_RLC0_RB_CNTL__RB_SIZE__SHIFT |
366 q->vmid << SDMA0_RLC0_RB_CNTL__RB_VMID__SHIFT |
367 1 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT |
368 6 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_TIMER__SHIFT;
369
370 m->sdmax_rlcx_rb_base = lower_32_bits(q->queue_address >> 8);
371 m->sdmax_rlcx_rb_base_hi = upper_32_bits(q->queue_address >> 8);
372 m->sdmax_rlcx_rb_rptr_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
373 m->sdmax_rlcx_rb_rptr_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
374 m->sdmax_rlcx_doorbell =
375 q->doorbell_off << SDMA0_RLC0_DOORBELL__OFFSET__SHIFT;
376
377 m->sdmax_rlcx_virtual_addr = q->sdma_vm_addr;
378
379 m->sdma_engine_id = q->sdma_engine_id;
380 m->sdma_queue_id = q->sdma_queue_id;
381
382 q->is_active = QUEUE_IS_ACTIVE(*q);
383}
384
385static void checkpoint_mqd_sdma(struct mqd_manager *mm,
386 void *mqd,
387 void *mqd_dst,
388 void *ctl_stack_dst)
389{
390 struct vi_sdma_mqd *m;
391
392 m = get_sdma_mqd(mqd);
393
394 memcpy(mqd_dst, m, sizeof(struct vi_sdma_mqd));
395}
396
397static void restore_mqd_sdma(struct mqd_manager *mm, void **mqd,
398 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
399 struct queue_properties *qp,
400 const void *mqd_src,
401 const void *ctl_stack_src, const u32 ctl_stack_size)
402{
403 uint64_t addr;
404 struct vi_sdma_mqd *m;
405
406 m = (struct vi_sdma_mqd *) mqd_mem_obj->cpu_ptr;
407 addr = mqd_mem_obj->gpu_addr;
408
409 memcpy(m, mqd_src, sizeof(*m));
410
411 m->sdmax_rlcx_doorbell =
412 qp->doorbell_off << SDMA0_RLC0_DOORBELL__OFFSET__SHIFT;
413
414 *mqd = m;
415 if (gart_addr)
416 *gart_addr = addr;
417
418 qp->is_active = 0;
419}
420
421#if defined(CONFIG_DEBUG_FS)
422
423
424static int debugfs_show_mqd(struct seq_file *m, void *data)
425{
426 seq_hex_dump(m, prefix_str: " ", prefix_type: DUMP_PREFIX_OFFSET, rowsize: 32, groupsize: 4,
427 buf: data, len: sizeof(struct vi_mqd), ascii: false);
428 return 0;
429}
430
431static int debugfs_show_mqd_sdma(struct seq_file *m, void *data)
432{
433 seq_hex_dump(m, prefix_str: " ", prefix_type: DUMP_PREFIX_OFFSET, rowsize: 32, groupsize: 4,
434 buf: data, len: sizeof(struct vi_sdma_mqd), ascii: false);
435 return 0;
436}
437
438#endif
439
440struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type,
441 struct kfd_node *dev)
442{
443 struct mqd_manager *mqd;
444
445 if (WARN_ON(type >= KFD_MQD_TYPE_MAX))
446 return NULL;
447
448 mqd = kzalloc(sizeof(*mqd), GFP_KERNEL);
449 if (!mqd)
450 return NULL;
451
452 mqd->dev = dev;
453
454 switch (type) {
455 case KFD_MQD_TYPE_CP:
456 mqd->allocate_mqd = allocate_mqd;
457 mqd->init_mqd = init_mqd;
458 mqd->free_mqd = kfd_free_mqd_cp;
459 mqd->load_mqd = load_mqd;
460 mqd->update_mqd = update_mqd;
461 mqd->destroy_mqd = kfd_destroy_mqd_cp;
462 mqd->is_occupied = kfd_is_occupied_cp;
463 mqd->get_wave_state = get_wave_state;
464 mqd->get_checkpoint_info = get_checkpoint_info;
465 mqd->checkpoint_mqd = checkpoint_mqd;
466 mqd->restore_mqd = restore_mqd;
467 mqd->mqd_size = sizeof(struct vi_mqd);
468#if defined(CONFIG_DEBUG_FS)
469 mqd->debugfs_show_mqd = debugfs_show_mqd;
470#endif
471 break;
472 case KFD_MQD_TYPE_HIQ:
473 mqd->allocate_mqd = allocate_hiq_mqd;
474 mqd->init_mqd = init_mqd_hiq;
475 mqd->free_mqd = free_mqd_hiq_sdma;
476 mqd->load_mqd = load_mqd;
477 mqd->update_mqd = update_mqd_hiq;
478 mqd->destroy_mqd = kfd_destroy_mqd_cp;
479 mqd->is_occupied = kfd_is_occupied_cp;
480 mqd->mqd_size = sizeof(struct vi_mqd);
481 mqd->mqd_stride = kfd_mqd_stride;
482#if defined(CONFIG_DEBUG_FS)
483 mqd->debugfs_show_mqd = debugfs_show_mqd;
484#endif
485 mqd->check_preemption_failed = check_preemption_failed;
486 break;
487 case KFD_MQD_TYPE_DIQ:
488 mqd->allocate_mqd = allocate_mqd;
489 mqd->init_mqd = init_mqd_hiq;
490 mqd->free_mqd = kfd_free_mqd_cp;
491 mqd->load_mqd = load_mqd;
492 mqd->update_mqd = update_mqd_hiq;
493 mqd->destroy_mqd = kfd_destroy_mqd_cp;
494 mqd->is_occupied = kfd_is_occupied_cp;
495 mqd->mqd_size = sizeof(struct vi_mqd);
496 mqd->mqd_stride = kfd_mqd_stride;
497#if defined(CONFIG_DEBUG_FS)
498 mqd->debugfs_show_mqd = debugfs_show_mqd;
499#endif
500 break;
501 case KFD_MQD_TYPE_SDMA:
502 mqd->allocate_mqd = allocate_sdma_mqd;
503 mqd->init_mqd = init_mqd_sdma;
504 mqd->free_mqd = free_mqd_hiq_sdma;
505 mqd->load_mqd = kfd_load_mqd_sdma;
506 mqd->update_mqd = update_mqd_sdma;
507 mqd->destroy_mqd = kfd_destroy_mqd_sdma;
508 mqd->is_occupied = kfd_is_occupied_sdma;
509 mqd->checkpoint_mqd = checkpoint_mqd_sdma;
510 mqd->restore_mqd = restore_mqd_sdma;
511 mqd->mqd_size = sizeof(struct vi_sdma_mqd);
512 mqd->mqd_stride = kfd_mqd_stride;
513#if defined(CONFIG_DEBUG_FS)
514 mqd->debugfs_show_mqd = debugfs_show_mqd_sdma;
515#endif
516 break;
517 default:
518 kfree(objp: mqd);
519 return NULL;
520 }
521
522 return mqd;
523}
524

source code of linux/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_vi.c