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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
37static inline struct vi_mqd *get_mqd(void *mqd)
38{
39 return (struct vi_mqd *)mqd;
40}
41
42static inline struct vi_sdma_mqd *get_sdma_mqd(void *mqd)
43{
44 return (struct vi_sdma_mqd *)mqd;
45}
46
47static 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
72static 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
78static 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
90static 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
156static 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
169static 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
240static 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
246static 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
252static 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
262static 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
268static 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
277static 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
299static 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
312static void update_mqd_hiq(struct mqd_manager *mm, void *mqd,
313 struct queue_properties *q)
314{
315 struct vi_mqd *m;
316 __update_mqd(mm, mqd, q, MTYPE_UC, 0);
317
318 m = get_mqd(mqd);
319 m->cp_hqd_vmid = q->vmid;
320}
321
322static void init_mqd_sdma(struct mqd_manager *mm, void **mqd,
323 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
324 struct queue_properties *q)
325{
326 struct vi_sdma_mqd *m;
327
328 m = (struct vi_sdma_mqd *) mqd_mem_obj->cpu_ptr;
329
330 memset(m, 0, sizeof(struct vi_sdma_mqd));
331
332 *mqd = m;
333 if (gart_addr)
334 *gart_addr = mqd_mem_obj->gpu_addr;
335
336 mm->update_mqd(mm, m, q);
337}
338
339static int load_mqd_sdma(struct mqd_manager *mm, void *mqd,
340 uint32_t pipe_id, uint32_t queue_id,
341 struct queue_properties *p, struct mm_struct *mms)
342{
343 return mm->dev->kfd2kgd->hqd_sdma_load(mm->dev->kgd, mqd,
344 (uint32_t __user *)p->write_ptr,
345 mms);
346}
347
348static void update_mqd_sdma(struct mqd_manager *mm, void *mqd,
349 struct queue_properties *q)
350{
351 struct vi_sdma_mqd *m;
352
353 m = get_sdma_mqd(mqd);
354 m->sdmax_rlcx_rb_cntl = order_base_2(q->queue_size / 4)
355 << SDMA0_RLC0_RB_CNTL__RB_SIZE__SHIFT |
356 q->vmid << SDMA0_RLC0_RB_CNTL__RB_VMID__SHIFT |
357 1 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT |
358 6 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_TIMER__SHIFT;
359
360 m->sdmax_rlcx_rb_base = lower_32_bits(q->queue_address >> 8);
361 m->sdmax_rlcx_rb_base_hi = upper_32_bits(q->queue_address >> 8);
362 m->sdmax_rlcx_rb_rptr_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
363 m->sdmax_rlcx_rb_rptr_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
364 m->sdmax_rlcx_doorbell =
365 q->doorbell_off << SDMA0_RLC0_DOORBELL__OFFSET__SHIFT;
366
367 m->sdmax_rlcx_virtual_addr = q->sdma_vm_addr;
368
369 m->sdma_engine_id = q->sdma_engine_id;
370 m->sdma_queue_id = q->sdma_queue_id;
371
372 q->is_active = QUEUE_IS_ACTIVE(*q);
373}
374
375/*
376 * * preempt type here is ignored because there is only one way
377 * * to preempt sdma queue
378 */
379static int destroy_mqd_sdma(struct mqd_manager *mm, void *mqd,
380 enum kfd_preempt_type type,
381 unsigned int timeout, uint32_t pipe_id,
382 uint32_t queue_id)
383{
384 return mm->dev->kfd2kgd->hqd_sdma_destroy(mm->dev->kgd, mqd, timeout);
385}
386
387static bool is_occupied_sdma(struct mqd_manager *mm, void *mqd,
388 uint64_t queue_address, uint32_t pipe_id,
389 uint32_t queue_id)
390{
391 return mm->dev->kfd2kgd->hqd_sdma_is_occupied(mm->dev->kgd, mqd);
392}
393
394#if defined(CONFIG_DEBUG_FS)
395
396static int debugfs_show_mqd(struct seq_file *m, void *data)
397{
398 seq_hex_dump(m, " ", DUMP_PREFIX_OFFSET, 32, 4,
399 data, sizeof(struct vi_mqd), false);
400 return 0;
401}
402
403static int debugfs_show_mqd_sdma(struct seq_file *m, void *data)
404{
405 seq_hex_dump(m, " ", DUMP_PREFIX_OFFSET, 32, 4,
406 data, sizeof(struct vi_sdma_mqd), false);
407 return 0;
408}
409
410#endif
411
412struct mqd_manager *mqd_manager_init_vi(enum KFD_MQD_TYPE type,
413 struct kfd_dev *dev)
414{
415 struct mqd_manager *mqd;
416
417 if (WARN_ON(type >= KFD_MQD_TYPE_MAX))
418 return NULL;
419
420 mqd = kzalloc(sizeof(*mqd), GFP_KERNEL);
421 if (!mqd)
422 return NULL;
423
424 mqd->dev = dev;
425
426 switch (type) {
427 case KFD_MQD_TYPE_CP:
428 case KFD_MQD_TYPE_COMPUTE:
429 mqd->allocate_mqd = allocate_mqd;
430 mqd->init_mqd = init_mqd;
431 mqd->free_mqd = free_mqd;
432 mqd->load_mqd = load_mqd;
433 mqd->update_mqd = update_mqd;
434 mqd->destroy_mqd = destroy_mqd;
435 mqd->is_occupied = is_occupied;
436 mqd->get_wave_state = get_wave_state;
437 mqd->mqd_size = sizeof(struct vi_mqd);
438#if defined(CONFIG_DEBUG_FS)
439 mqd->debugfs_show_mqd = debugfs_show_mqd;
440#endif
441 break;
442 case KFD_MQD_TYPE_HIQ:
443 mqd->allocate_mqd = allocate_hiq_mqd;
444 mqd->init_mqd = init_mqd_hiq;
445 mqd->free_mqd = free_mqd_hiq_sdma;
446 mqd->load_mqd = load_mqd;
447 mqd->update_mqd = update_mqd_hiq;
448 mqd->destroy_mqd = destroy_mqd;
449 mqd->is_occupied = is_occupied;
450 mqd->mqd_size = sizeof(struct vi_mqd);
451#if defined(CONFIG_DEBUG_FS)
452 mqd->debugfs_show_mqd = debugfs_show_mqd;
453#endif
454 break;
455 case KFD_MQD_TYPE_DIQ:
456 mqd->allocate_mqd = allocate_hiq_mqd;
457 mqd->init_mqd = init_mqd_hiq;
458 mqd->free_mqd = free_mqd;
459 mqd->load_mqd = load_mqd;
460 mqd->update_mqd = update_mqd_hiq;
461 mqd->destroy_mqd = destroy_mqd;
462 mqd->is_occupied = is_occupied;
463 mqd->mqd_size = sizeof(struct vi_mqd);
464#if defined(CONFIG_DEBUG_FS)
465 mqd->debugfs_show_mqd = debugfs_show_mqd;
466#endif
467 break;
468 case KFD_MQD_TYPE_SDMA:
469 mqd->allocate_mqd = allocate_sdma_mqd;
470 mqd->init_mqd = init_mqd_sdma;
471 mqd->free_mqd = free_mqd_hiq_sdma;
472 mqd->load_mqd = load_mqd_sdma;
473 mqd->update_mqd = update_mqd_sdma;
474 mqd->destroy_mqd = destroy_mqd_sdma;
475 mqd->is_occupied = is_occupied_sdma;
476 mqd->mqd_size = sizeof(struct vi_sdma_mqd);
477#if defined(CONFIG_DEBUG_FS)
478 mqd->debugfs_show_mqd = debugfs_show_mqd_sdma;
479#endif
480 break;
481 default:
482 kfree(mqd);
483 return NULL;
484 }
485
486 return mqd;
487}
488
489struct mqd_manager *mqd_manager_init_vi_tonga(enum KFD_MQD_TYPE type,
490 struct kfd_dev *dev)
491{
492 struct mqd_manager *mqd;
493
494 mqd = mqd_manager_init_vi(type, dev);
495 if (!mqd)
496 return NULL;
497 if ((type == KFD_MQD_TYPE_CP) || (type == KFD_MQD_TYPE_COMPUTE))
498 mqd->update_mqd = update_mqd_tonga;
499 return mqd;
500}