tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright 2018 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 "kfd_kernel_queue.h"
25#include "kfd_device_queue_manager.h"
26#include "kfd_pm4_headers_ai.h"
27#include "kfd_pm4_opcodes.h"
28#include "gc/gc_10_1_0_sh_mask.h"
29
30static bool initialize_v10(struct kernel_queue *kq, struct kfd_dev *dev,
31 enum kfd_queue_type type, unsigned int queue_size);
32static void uninitialize_v10(struct kernel_queue *kq);
33static void submit_packet_v10(struct kernel_queue *kq);
34
35void kernel_queue_init_v10(struct kernel_queue_ops *ops)
36{
37 ops->initialize = initialize_v10;
38 ops->uninitialize = uninitialize_v10;
39 ops->submit_packet = submit_packet_v10;
40}
41
42static bool initialize_v10(struct kernel_queue *kq, struct kfd_dev *dev,
43 enum kfd_queue_type type, unsigned int queue_size)
44{
45 int retval;
46
47 retval = kfd_gtt_sa_allocate(dev, PAGE_SIZE, &kq->eop_mem);
48 if (retval != 0)
49 return false;
50
51 kq->eop_gpu_addr = kq->eop_mem->gpu_addr;
52 kq->eop_kernel_addr = kq->eop_mem->cpu_ptr;
53
54 memset(kq->eop_kernel_addr, 0, PAGE_SIZE);
55
56 return true;
57}
58
59static void uninitialize_v10(struct kernel_queue *kq)
60{
61 kfd_gtt_sa_free(kq->dev, kq->eop_mem);
62}
63
64static void submit_packet_v10(struct kernel_queue *kq)
65{
66 *kq->wptr64_kernel = kq->pending_wptr64;
67 write_kernel_doorbell64(kq->queue->properties.doorbell_ptr,
68 kq->pending_wptr64);
69}
70
71static int pm_map_process_v10(struct packet_manager *pm,
72 uint32_t *buffer, struct qcm_process_device *qpd)
73{
74 struct pm4_mes_map_process *packet;
75 uint64_t vm_page_table_base_addr = qpd->page_table_base;
76
77 packet = (struct pm4_mes_map_process *)buffer;
78 memset(buffer, 0, sizeof(struct pm4_mes_map_process));
79
80 packet->header.u32All = pm_build_pm4_header(IT_MAP_PROCESS,
81 sizeof(struct pm4_mes_map_process));
82 packet->bitfields2.diq_enable = (qpd->is_debug) ? 1 : 0;
83 packet->bitfields2.process_quantum = 1;
84 packet->bitfields2.pasid = qpd->pqm->process->pasid;
85 packet->bitfields14.gds_size = qpd->gds_size;
86 packet->bitfields14.num_gws = qpd->num_gws;
87 packet->bitfields14.num_oac = qpd->num_oac;
88 packet->bitfields14.sdma_enable = 1;
89
90 packet->bitfields14.num_queues = (qpd->is_debug) ? 0 : qpd->queue_count;
91
92 packet->sh_mem_config = qpd->sh_mem_config;
93 packet->sh_mem_bases = qpd->sh_mem_bases;
94 if (qpd->tba_addr) {
95 packet->sq_shader_tba_lo = lower_32_bits(qpd->tba_addr >> 8);
96 packet->sq_shader_tba_hi = (1 << SQ_SHADER_TBA_HI__TRAP_EN__SHIFT) |
97 upper_32_bits(qpd->tba_addr >> 8);
98 packet->sq_shader_tma_lo = lower_32_bits(qpd->tma_addr >> 8);
99 packet->sq_shader_tma_hi = upper_32_bits(qpd->tma_addr >> 8);
100 }
101
102 packet->gds_addr_lo = lower_32_bits(qpd->gds_context_area);
103 packet->gds_addr_hi = upper_32_bits(qpd->gds_context_area);
104
105 packet->vm_context_page_table_base_addr_lo32 =
106 lower_32_bits(vm_page_table_base_addr);
107 packet->vm_context_page_table_base_addr_hi32 =
108 upper_32_bits(vm_page_table_base_addr);
109
110 return 0;
111}
112
113static int pm_runlist_v10(struct packet_manager *pm, uint32_t *buffer,
114 uint64_t ib, size_t ib_size_in_dwords, bool chain)
115{
116 struct pm4_mes_runlist *packet;
117
118 int concurrent_proc_cnt = 0;
119 struct kfd_dev *kfd = pm->dqm->dev;
120
121 /* Determine the number of processes to map together to HW:
122 * it can not exceed the number of VMIDs available to the
123 * scheduler, and it is determined by the smaller of the number
124 * of processes in the runlist and kfd module parameter
125 * hws_max_conc_proc.
126 * Note: the arbitration between the number of VMIDs and
127 * hws_max_conc_proc has been done in
128 * kgd2kfd_device_init().
129 */
130 concurrent_proc_cnt = min(pm->dqm->processes_count,
131 kfd->max_proc_per_quantum);
132
133
134 packet = (struct pm4_mes_runlist *)buffer;
135
136 memset(buffer, 0, sizeof(struct pm4_mes_runlist));
137 packet->header.u32All = pm_build_pm4_header(IT_RUN_LIST,
138 sizeof(struct pm4_mes_runlist));
139
140 packet->bitfields4.ib_size = ib_size_in_dwords;
141 packet->bitfields4.chain = chain ? 1 : 0;
142 packet->bitfields4.offload_polling = 0;
143 packet->bitfields4.valid = 1;
144 packet->bitfields4.process_cnt = concurrent_proc_cnt;
145 packet->ordinal2 = lower_32_bits(ib);
146 packet->ib_base_hi = upper_32_bits(ib);
147
148 return 0;
149}
150
151static int pm_map_queues_v10(struct packet_manager *pm, uint32_t *buffer,
152 struct queue *q, bool is_static)
153{
154 struct pm4_mes_map_queues *packet;
155 bool use_static = is_static;
156
157 packet = (struct pm4_mes_map_queues *)buffer;
158 memset(buffer, 0, sizeof(struct pm4_mes_map_queues));
159
160 packet->header.u32All = pm_build_pm4_header(IT_MAP_QUEUES,
161 sizeof(struct pm4_mes_map_queues));
162 packet->bitfields2.num_queues = 1;
163 packet->bitfields2.queue_sel =
164 queue_sel__mes_map_queues__map_to_hws_determined_queue_slots_vi;
165
166 packet->bitfields2.engine_sel =
167 engine_sel__mes_map_queues__compute_vi;
168 packet->bitfields2.queue_type =
169 queue_type__mes_map_queues__normal_compute_vi;
170
171 switch (q->properties.type) {
172 case KFD_QUEUE_TYPE_COMPUTE:
173 if (use_static)
174 packet->bitfields2.queue_type =
175 queue_type__mes_map_queues__normal_latency_static_queue_vi;
176 break;
177 case KFD_QUEUE_TYPE_DIQ:
178 packet->bitfields2.queue_type =
179 queue_type__mes_map_queues__debug_interface_queue_vi;
180 break;
181 case KFD_QUEUE_TYPE_SDMA:
182 case KFD_QUEUE_TYPE_SDMA_XGMI:
183 packet->bitfields2.engine_sel = q->properties.sdma_engine_id +
184 engine_sel__mes_map_queues__sdma0_vi;
185 use_static = false; /* no static queues under SDMA */
186 break;
187 default:
188 WARN(1, "queue type %d\n", q->properties.type);
189 return -EINVAL;
190 }
191 packet->bitfields3.doorbell_offset =
192 q->properties.doorbell_off;
193
194 packet->mqd_addr_lo =
195 lower_32_bits(q->gart_mqd_addr);
196
197 packet->mqd_addr_hi =
198 upper_32_bits(q->gart_mqd_addr);
199
200 packet->wptr_addr_lo =
201 lower_32_bits((uint64_t)q->properties.write_ptr);
202
203 packet->wptr_addr_hi =
204 upper_32_bits((uint64_t)q->properties.write_ptr);
205
206 return 0;
207}
208
209static int pm_unmap_queues_v10(struct packet_manager *pm, uint32_t *buffer,
210 enum kfd_queue_type type,
211 enum kfd_unmap_queues_filter filter,
212 uint32_t filter_param, bool reset,
213 unsigned int sdma_engine)
214{
215 struct pm4_mes_unmap_queues *packet;
216
217 packet = (struct pm4_mes_unmap_queues *)buffer;
218 memset(buffer, 0, sizeof(struct pm4_mes_unmap_queues));
219
220 packet->header.u32All = pm_build_pm4_header(IT_UNMAP_QUEUES,
221 sizeof(struct pm4_mes_unmap_queues));
222 switch (type) {
223 case KFD_QUEUE_TYPE_COMPUTE:
224 case KFD_QUEUE_TYPE_DIQ:
225 packet->bitfields2.engine_sel =
226 engine_sel__mes_unmap_queues__compute;
227 break;
228 case KFD_QUEUE_TYPE_SDMA:
229 case KFD_QUEUE_TYPE_SDMA_XGMI:
230 packet->bitfields2.engine_sel =
231 engine_sel__mes_unmap_queues__sdma0 + sdma_engine;
232 break;
233 default:
234 WARN(1, "queue type %d\n", type);
235 break;
236 }
237
238 if (reset)
239 packet->bitfields2.action =
240 action__mes_unmap_queues__reset_queues;
241 else
242 packet->bitfields2.action =
243 action__mes_unmap_queues__preempt_queues;
244
245 switch (filter) {
246 case KFD_UNMAP_QUEUES_FILTER_SINGLE_QUEUE:
247 packet->bitfields2.queue_sel =
248 queue_sel__mes_unmap_queues__perform_request_on_specified_queues;
249 packet->bitfields2.num_queues = 1;
250 packet->bitfields3b.doorbell_offset0 = filter_param;
251 break;
252 case KFD_UNMAP_QUEUES_FILTER_BY_PASID:
253 packet->bitfields2.queue_sel =
254 queue_sel__mes_unmap_queues__perform_request_on_pasid_queues;
255 packet->bitfields3a.pasid = filter_param;
256 break;
257 case KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES:
258 packet->bitfields2.queue_sel =
259 queue_sel__mes_unmap_queues__unmap_all_queues;
260 break;
261 case KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES:
262 /* in this case, we do not preempt static queues */
263 packet->bitfields2.queue_sel =
264 queue_sel__mes_unmap_queues__unmap_all_non_static_queues;
265 break;
266 default:
267 WARN(1, "filter %d\n", filter);
268 break;
269 }
270
271 return 0;
272
273}
274
275static int pm_query_status_v10(struct packet_manager *pm, uint32_t *buffer,
276 uint64_t fence_address, uint32_t fence_value)
277{
278 struct pm4_mes_query_status *packet;
279
280 packet = (struct pm4_mes_query_status *)buffer;
281 memset(buffer, 0, sizeof(struct pm4_mes_query_status));
282
283
284 packet->header.u32All = pm_build_pm4_header(IT_QUERY_STATUS,
285 sizeof(struct pm4_mes_query_status));
286
287 packet->bitfields2.context_id = 0;
288 packet->bitfields2.interrupt_sel =
289 interrupt_sel__mes_query_status__completion_status;
290 packet->bitfields2.command =
291 command__mes_query_status__fence_only_after_write_ack;
292
293 packet->addr_hi = upper_32_bits((uint64_t)fence_address);
294 packet->addr_lo = lower_32_bits((uint64_t)fence_address);
295 packet->data_hi = upper_32_bits((uint64_t)fence_value);
296 packet->data_lo = lower_32_bits((uint64_t)fence_value);
297
298 return 0;
299}
300
301
302static int pm_release_mem_v10(uint64_t gpu_addr, uint32_t *buffer)
303{
304 struct pm4_mec_release_mem *packet;
305
306 WARN_ON(!buffer);
307
308 packet = (struct pm4_mec_release_mem *)buffer;
309 memset(buffer, 0, sizeof(struct pm4_mec_release_mem));
310
311 packet->header.u32All = pm_build_pm4_header(IT_RELEASE_MEM,
312 sizeof(struct pm4_mec_release_mem));
313
314 packet->bitfields2.event_type = CACHE_FLUSH_AND_INV_TS_EVENT;
315 packet->bitfields2.event_index = event_index__mec_release_mem__end_of_pipe;
316 packet->bitfields2.tcl1_action_ena = 1;
317 packet->bitfields2.tc_action_ena = 1;
318 packet->bitfields2.cache_policy = cache_policy__mec_release_mem__lru;
319
320 packet->bitfields3.data_sel = data_sel__mec_release_mem__send_32_bit_low;
321 packet->bitfields3.int_sel =
322 int_sel__mec_release_mem__send_interrupt_after_write_confirm;
323
324 packet->bitfields4.address_lo_32b = (gpu_addr & 0xffffffff) >> 2;
325 packet->address_hi = upper_32_bits(gpu_addr);
326
327 packet->data_lo = 0;
328
329 return sizeof(struct pm4_mec_release_mem) / sizeof(unsigned int);
330}
331
332const struct packet_manager_funcs kfd_v10_pm_funcs = {
333 .map_process = pm_map_process_v10,
334 .runlist = pm_runlist_v10,
335 .set_resources = pm_set_resources_vi,
336 .map_queues = pm_map_queues_v10,
337 .unmap_queues = pm_unmap_queues_v10,
338 .query_status = pm_query_status_v10,
339 .release_mem = pm_release_mem_v10,
340 .map_process_size = sizeof(struct pm4_mes_map_process),
341 .runlist_size = sizeof(struct pm4_mes_runlist),
342 .set_resources_size = sizeof(struct pm4_mes_set_resources),
343 .map_queues_size = sizeof(struct pm4_mes_map_queues),
344 .unmap_queues_size = sizeof(struct pm4_mes_unmap_queues),
345 .query_status_size = sizeof(struct pm4_mes_query_status),
346 .release_mem_size = sizeof(struct pm4_mec_release_mem)
347};
348