1 // SPDX-License-Identifier: GPL-2.0 OR MIT
3 * Copyright 2018-2022 Advanced Micro Devices, Inc.
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:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
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.
25 #include <linux/printk.h>
26 #include <linux/slab.h>
27 #include <linux/uaccess.h>
29 #include "kfd_mqd_manager.h"
30 #include "v10_structs.h"
31 #include "gc/gc_10_1_0_offset.h"
32 #include "gc/gc_10_1_0_sh_mask.h"
33 #include "amdgpu_amdkfd.h"
35 static inline struct v10_compute_mqd *get_mqd(void *mqd)
37 return (struct v10_compute_mqd *)mqd;
40 static inline struct v10_sdma_mqd *get_sdma_mqd(void *mqd)
42 return (struct v10_sdma_mqd *)mqd;
45 static void update_cu_mask(struct mqd_manager *mm, void *mqd,
46 struct mqd_update_info *minfo)
48 struct v10_compute_mqd *m;
49 uint32_t se_mask[4] = {0}; /* 4 is the max # of SEs */
51 if (!minfo || !minfo->cu_mask.ptr)
54 mqd_symmetrically_map_cu_mask(mm,
55 minfo->cu_mask.ptr, minfo->cu_mask.count, se_mask, 0);
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];
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);
70 static void set_priority(struct v10_compute_mqd *m, struct queue_properties *q)
72 m->cp_hqd_pipe_priority = pipe_priority_map[q->priority];
73 m->cp_hqd_queue_priority = q->priority;
76 static struct kfd_mem_obj *allocate_mqd(struct kfd_node *kfd,
77 struct queue_properties *q)
79 struct kfd_mem_obj *mqd_mem_obj;
81 if (kfd_gtt_sa_allocate(kfd, sizeof(struct v10_compute_mqd),
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)
93 struct v10_compute_mqd *m;
95 m = (struct v10_compute_mqd *) mqd_mem_obj->cpu_ptr;
96 addr = mqd_mem_obj->gpu_addr;
98 memset(m, 0, sizeof(struct v10_compute_mqd));
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;
107 m->cp_hqd_persistent_state = CP_HQD_PERSISTENT_STATE__PRELOAD_REQ_MASK |
108 0x53 << CP_HQD_PERSISTENT_STATE__PRELOAD_SIZE__SHIFT;
110 m->cp_mqd_control = 1 << CP_MQD_CONTROL__PRIV_STATE__SHIFT;
112 m->cp_mqd_base_addr_lo = lower_32_bits(addr);
113 m->cp_mqd_base_addr_hi = upper_32_bits(addr);
115 m->cp_hqd_quantum = 1 << CP_HQD_QUANTUM__QUANTUM_EN__SHIFT |
116 1 << CP_HQD_QUANTUM__QUANTUM_SCALE__SHIFT |
117 1 << CP_HQD_QUANTUM__QUANTUM_DURATION__SHIFT;
119 /* Set cp_hqd_hq_scheduler0 bit 14 to 1 to have the CP set up the
120 * DISPATCH_PTR. This is required for the kfd debugger
122 m->cp_hqd_hq_scheduler0 = 1 << 14;
124 if (q->format == KFD_QUEUE_FORMAT_AQL) {
125 m->cp_hqd_aql_control =
126 1 << CP_HQD_AQL_CONTROL__CONTROL0__SHIFT;
129 if (mm->dev->kfd->cwsr_enabled) {
130 m->cp_hqd_persistent_state |=
131 (1 << CP_HQD_PERSISTENT_STATE__QSWITCH_MODE__SHIFT);
132 m->cp_hqd_ctx_save_base_addr_lo =
133 lower_32_bits(q->ctx_save_restore_area_address);
134 m->cp_hqd_ctx_save_base_addr_hi =
135 upper_32_bits(q->ctx_save_restore_area_address);
136 m->cp_hqd_ctx_save_size = q->ctx_save_restore_area_size;
137 m->cp_hqd_cntl_stack_size = q->ctl_stack_size;
138 m->cp_hqd_cntl_stack_offset = q->ctl_stack_size;
139 m->cp_hqd_wg_state_offset = q->ctl_stack_size;
145 mm->update_mqd(mm, m, q, NULL);
148 static int load_mqd(struct mqd_manager *mm, void *mqd,
149 uint32_t pipe_id, uint32_t queue_id,
150 struct queue_properties *p, struct mm_struct *mms)
153 /* AQL write pointer counts in 64B packets, PM4/CP counts in dwords. */
154 uint32_t wptr_shift = (p->format == KFD_QUEUE_FORMAT_AQL ? 4 : 0);
156 r = mm->dev->kfd2kgd->hqd_load(mm->dev->adev, mqd, pipe_id, queue_id,
157 (uint32_t __user *)p->write_ptr,
158 wptr_shift, 0, mms, 0);
162 static void update_mqd(struct mqd_manager *mm, void *mqd,
163 struct queue_properties *q,
164 struct mqd_update_info *minfo)
166 struct v10_compute_mqd *m;
170 m->cp_hqd_pq_control = 5 << CP_HQD_PQ_CONTROL__RPTR_BLOCK_SIZE__SHIFT;
171 m->cp_hqd_pq_control |=
172 ffs(q->queue_size / sizeof(unsigned int)) - 1 - 1;
173 pr_debug("cp_hqd_pq_control 0x%x\n", m->cp_hqd_pq_control);
175 m->cp_hqd_pq_base_lo = lower_32_bits((uint64_t)q->queue_address >> 8);
176 m->cp_hqd_pq_base_hi = upper_32_bits((uint64_t)q->queue_address >> 8);
178 m->cp_hqd_pq_rptr_report_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
179 m->cp_hqd_pq_rptr_report_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
180 m->cp_hqd_pq_wptr_poll_addr_lo = lower_32_bits((uint64_t)q->write_ptr);
181 m->cp_hqd_pq_wptr_poll_addr_hi = upper_32_bits((uint64_t)q->write_ptr);
183 m->cp_hqd_pq_doorbell_control =
185 CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET__SHIFT;
186 pr_debug("cp_hqd_pq_doorbell_control 0x%x\n",
187 m->cp_hqd_pq_doorbell_control);
189 m->cp_hqd_ib_control = 3 << CP_HQD_IB_CONTROL__MIN_IB_AVAIL_SIZE__SHIFT;
192 * HW does not clamp this field correctly. Maximum EOP queue size
193 * is constrained by per-SE EOP done signal count, which is 8-bit.
194 * Limit is 0xFF EOP entries (= 0x7F8 dwords). CP will not submit
195 * more than (EOP entry count - 1) so a queue size of 0x800 dwords
196 * is safe, giving a maximum field value of 0xA.
198 m->cp_hqd_eop_control = min(0xA,
199 ffs(q->eop_ring_buffer_size / sizeof(unsigned int)) - 1 - 1);
200 m->cp_hqd_eop_base_addr_lo =
201 lower_32_bits(q->eop_ring_buffer_address >> 8);
202 m->cp_hqd_eop_base_addr_hi =
203 upper_32_bits(q->eop_ring_buffer_address >> 8);
205 m->cp_hqd_iq_timer = 0;
207 m->cp_hqd_vmid = q->vmid;
209 if (q->format == KFD_QUEUE_FORMAT_AQL) {
210 /* GC 10 removed WPP_CLAMP from PQ Control */
211 m->cp_hqd_pq_control |= CP_HQD_PQ_CONTROL__NO_UPDATE_RPTR_MASK |
212 2 << CP_HQD_PQ_CONTROL__SLOT_BASED_WPTR__SHIFT |
213 1 << CP_HQD_PQ_CONTROL__QUEUE_FULL_EN__SHIFT;
214 m->cp_hqd_pq_doorbell_control |=
215 1 << CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_BIF_DROP__SHIFT;
217 if (mm->dev->kfd->cwsr_enabled)
218 m->cp_hqd_ctx_save_control = 0;
220 update_cu_mask(mm, mqd, minfo);
223 q->is_active = QUEUE_IS_ACTIVE(*q);
226 static uint32_t read_doorbell_id(void *mqd)
228 struct v10_compute_mqd *m = (struct v10_compute_mqd *)mqd;
230 return m->queue_doorbell_id0;
233 static int get_wave_state(struct mqd_manager *mm, void *mqd,
234 struct queue_properties *q,
235 void __user *ctl_stack,
236 u32 *ctl_stack_used_size,
237 u32 *save_area_used_size)
239 struct v10_compute_mqd *m;
240 struct kfd_context_save_area_header header;
244 /* Control stack is written backwards, while workgroup context data
245 * is written forwards. Both starts from m->cp_hqd_cntl_stack_size.
246 * Current position is at m->cp_hqd_cntl_stack_offset and
247 * m->cp_hqd_wg_state_offset, respectively.
249 *ctl_stack_used_size = m->cp_hqd_cntl_stack_size -
250 m->cp_hqd_cntl_stack_offset;
251 *save_area_used_size = m->cp_hqd_wg_state_offset -
252 m->cp_hqd_cntl_stack_size;
254 /* Control stack is not copied to user mode for GFXv10 because
255 * it's part of the context save area that is already
256 * accessible to user mode
259 header.wave_state.control_stack_size = *ctl_stack_used_size;
260 header.wave_state.wave_state_size = *save_area_used_size;
262 header.wave_state.wave_state_offset = m->cp_hqd_wg_state_offset;
263 header.wave_state.control_stack_offset = m->cp_hqd_cntl_stack_offset;
265 if (copy_to_user(ctl_stack, &header, sizeof(header.wave_state)))
271 static void checkpoint_mqd(struct mqd_manager *mm, void *mqd, void *mqd_dst, void *ctl_stack_dst)
273 struct v10_compute_mqd *m;
277 memcpy(mqd_dst, m, sizeof(struct v10_compute_mqd));
280 static void restore_mqd(struct mqd_manager *mm, void **mqd,
281 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
282 struct queue_properties *qp,
284 const void *ctl_stack_src, const u32 ctl_stack_size)
287 struct v10_compute_mqd *m;
289 m = (struct v10_compute_mqd *) mqd_mem_obj->cpu_ptr;
290 addr = mqd_mem_obj->gpu_addr;
292 memcpy(m, mqd_src, sizeof(*m));
298 m->cp_hqd_pq_doorbell_control =
300 CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET__SHIFT;
301 pr_debug("cp_hqd_pq_doorbell_control 0x%x\n",
302 m->cp_hqd_pq_doorbell_control);
307 static void init_mqd_hiq(struct mqd_manager *mm, void **mqd,
308 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
309 struct queue_properties *q)
311 struct v10_compute_mqd *m;
313 init_mqd(mm, mqd, mqd_mem_obj, gart_addr, q);
317 m->cp_hqd_pq_control |= 1 << CP_HQD_PQ_CONTROL__PRIV_STATE__SHIFT |
318 1 << CP_HQD_PQ_CONTROL__KMD_QUEUE__SHIFT;
321 static int destroy_hiq_mqd(struct mqd_manager *mm, void *mqd,
322 enum kfd_preempt_type type, unsigned int timeout,
323 uint32_t pipe_id, uint32_t queue_id)
326 struct v10_compute_mqd *m;
331 doorbell_off = m->cp_hqd_pq_doorbell_control >>
332 CP_HQD_PQ_DOORBELL_CONTROL__DOORBELL_OFFSET__SHIFT;
334 err = amdgpu_amdkfd_unmap_hiq(mm->dev->adev, doorbell_off, 0);
336 pr_debug("Destroy HIQ MQD failed: %d\n", err);
341 static void init_mqd_sdma(struct mqd_manager *mm, void **mqd,
342 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
343 struct queue_properties *q)
345 struct v10_sdma_mqd *m;
347 m = (struct v10_sdma_mqd *) mqd_mem_obj->cpu_ptr;
349 memset(m, 0, sizeof(struct v10_sdma_mqd));
353 *gart_addr = mqd_mem_obj->gpu_addr;
355 mm->update_mqd(mm, m, q, NULL);
358 #define SDMA_RLC_DUMMY_DEFAULT 0xf
360 static void update_mqd_sdma(struct mqd_manager *mm, void *mqd,
361 struct queue_properties *q,
362 struct mqd_update_info *minfo)
364 struct v10_sdma_mqd *m;
366 m = get_sdma_mqd(mqd);
367 m->sdmax_rlcx_rb_cntl = (ffs(q->queue_size / sizeof(unsigned int)) - 1)
368 << SDMA0_RLC0_RB_CNTL__RB_SIZE__SHIFT |
369 q->vmid << SDMA0_RLC0_RB_CNTL__RB_VMID__SHIFT |
370 1 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_ENABLE__SHIFT |
371 6 << SDMA0_RLC0_RB_CNTL__RPTR_WRITEBACK_TIMER__SHIFT;
373 m->sdmax_rlcx_rb_base = lower_32_bits(q->queue_address >> 8);
374 m->sdmax_rlcx_rb_base_hi = upper_32_bits(q->queue_address >> 8);
375 m->sdmax_rlcx_rb_rptr_addr_lo = lower_32_bits((uint64_t)q->read_ptr);
376 m->sdmax_rlcx_rb_rptr_addr_hi = upper_32_bits((uint64_t)q->read_ptr);
377 m->sdmax_rlcx_doorbell_offset =
378 q->doorbell_off << SDMA0_RLC0_DOORBELL_OFFSET__OFFSET__SHIFT;
380 m->sdma_engine_id = q->sdma_engine_id;
381 m->sdma_queue_id = q->sdma_queue_id;
382 m->sdmax_rlcx_dummy_reg = SDMA_RLC_DUMMY_DEFAULT;
384 q->is_active = QUEUE_IS_ACTIVE(*q);
387 static void checkpoint_mqd_sdma(struct mqd_manager *mm,
392 struct v10_sdma_mqd *m;
394 m = get_sdma_mqd(mqd);
396 memcpy(mqd_dst, m, sizeof(struct v10_sdma_mqd));
399 static void restore_mqd_sdma(struct mqd_manager *mm, void **mqd,
400 struct kfd_mem_obj *mqd_mem_obj, uint64_t *gart_addr,
401 struct queue_properties *qp,
403 const void *ctl_stack_src,
404 const u32 ctl_stack_size)
407 struct v10_sdma_mqd *m;
409 m = (struct v10_sdma_mqd *) mqd_mem_obj->cpu_ptr;
410 addr = mqd_mem_obj->gpu_addr;
412 memcpy(m, mqd_src, sizeof(*m));
414 m->sdmax_rlcx_doorbell_offset =
415 qp->doorbell_off << SDMA0_RLC0_DOORBELL_OFFSET__OFFSET__SHIFT;
424 #if defined(CONFIG_DEBUG_FS)
426 static int debugfs_show_mqd(struct seq_file *m, void *data)
428 seq_hex_dump(m, " ", DUMP_PREFIX_OFFSET, 32, 4,
429 data, sizeof(struct v10_compute_mqd), false);
433 static int debugfs_show_mqd_sdma(struct seq_file *m, void *data)
435 seq_hex_dump(m, " ", DUMP_PREFIX_OFFSET, 32, 4,
436 data, sizeof(struct v10_sdma_mqd), false);
442 struct mqd_manager *mqd_manager_init_v10(enum KFD_MQD_TYPE type,
443 struct kfd_node *dev)
445 struct mqd_manager *mqd;
447 if (WARN_ON(type >= KFD_MQD_TYPE_MAX))
450 mqd = kzalloc(sizeof(*mqd), GFP_KERNEL);
457 case KFD_MQD_TYPE_CP:
458 pr_debug("%s@%i\n", __func__, __LINE__);
459 mqd->allocate_mqd = allocate_mqd;
460 mqd->init_mqd = init_mqd;
461 mqd->free_mqd = kfd_free_mqd_cp;
462 mqd->load_mqd = load_mqd;
463 mqd->update_mqd = update_mqd;
464 mqd->destroy_mqd = kfd_destroy_mqd_cp;
465 mqd->is_occupied = kfd_is_occupied_cp;
466 mqd->mqd_size = sizeof(struct v10_compute_mqd);
467 mqd->get_wave_state = get_wave_state;
468 mqd->checkpoint_mqd = checkpoint_mqd;
469 mqd->restore_mqd = restore_mqd;
470 mqd->mqd_stride = kfd_mqd_stride;
471 #if defined(CONFIG_DEBUG_FS)
472 mqd->debugfs_show_mqd = debugfs_show_mqd;
474 pr_debug("%s@%i\n", __func__, __LINE__);
476 case KFD_MQD_TYPE_HIQ:
477 pr_debug("%s@%i\n", __func__, __LINE__);
478 mqd->allocate_mqd = allocate_hiq_mqd;
479 mqd->init_mqd = init_mqd_hiq;
480 mqd->free_mqd = free_mqd_hiq_sdma;
481 mqd->load_mqd = kfd_hiq_load_mqd_kiq;
482 mqd->update_mqd = update_mqd;
483 mqd->destroy_mqd = destroy_hiq_mqd;
484 mqd->is_occupied = kfd_is_occupied_cp;
485 mqd->mqd_size = sizeof(struct v10_compute_mqd);
486 mqd->mqd_stride = kfd_mqd_stride;
487 #if defined(CONFIG_DEBUG_FS)
488 mqd->debugfs_show_mqd = debugfs_show_mqd;
490 mqd->read_doorbell_id = read_doorbell_id;
491 pr_debug("%s@%i\n", __func__, __LINE__);
493 case KFD_MQD_TYPE_DIQ:
494 mqd->allocate_mqd = allocate_mqd;
495 mqd->init_mqd = init_mqd_hiq;
496 mqd->free_mqd = kfd_free_mqd_cp;
497 mqd->load_mqd = load_mqd;
498 mqd->update_mqd = update_mqd;
499 mqd->destroy_mqd = kfd_destroy_mqd_cp;
500 mqd->is_occupied = kfd_is_occupied_cp;
501 mqd->mqd_size = sizeof(struct v10_compute_mqd);
502 #if defined(CONFIG_DEBUG_FS)
503 mqd->debugfs_show_mqd = debugfs_show_mqd;
506 case KFD_MQD_TYPE_SDMA:
507 pr_debug("%s@%i\n", __func__, __LINE__);
508 mqd->allocate_mqd = allocate_sdma_mqd;
509 mqd->init_mqd = init_mqd_sdma;
510 mqd->free_mqd = free_mqd_hiq_sdma;
511 mqd->load_mqd = kfd_load_mqd_sdma;
512 mqd->update_mqd = update_mqd_sdma;
513 mqd->destroy_mqd = kfd_destroy_mqd_sdma;
514 mqd->is_occupied = kfd_is_occupied_sdma;
515 mqd->checkpoint_mqd = checkpoint_mqd_sdma;
516 mqd->restore_mqd = restore_mqd_sdma;
517 mqd->mqd_size = sizeof(struct v10_sdma_mqd);
518 mqd->mqd_stride = kfd_mqd_stride;
519 #if defined(CONFIG_DEBUG_FS)
520 mqd->debugfs_show_mqd = debugfs_show_mqd_sdma;
522 pr_debug("%s@%i\n", __func__, __LINE__);