tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
fork
Configure Feed
Select the types of activity you want to include in your feed.
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 "kfd_kernel_queue.h"
25#include "kfd_device_queue_manager.h"
26#include "kfd_pm4_headers_vi.h"
27#include "kfd_pm4_opcodes.h"
28
29static bool initialize_vi(struct kernel_queue *kq, struct kfd_dev *dev,
30 enum kfd_queue_type type, unsigned int queue_size);
31static void uninitialize_vi(struct kernel_queue *kq);
32static void submit_packet_vi(struct kernel_queue *kq);
33
34void kernel_queue_init_vi(struct kernel_queue_ops *ops)
35{
36 ops->initialize = initialize_vi;
37 ops->uninitialize = uninitialize_vi;
38 ops->submit_packet = submit_packet_vi;
39}
40
41static bool initialize_vi(struct kernel_queue *kq, struct kfd_dev *dev,
42 enum kfd_queue_type type, unsigned int queue_size)
43{
44 int retval;
45
46 retval = kfd_gtt_sa_allocate(dev, PAGE_SIZE, &kq->eop_mem);
47 if (retval != 0)
48 return false;
49
50 kq->eop_gpu_addr = kq->eop_mem->gpu_addr;
51 kq->eop_kernel_addr = kq->eop_mem->cpu_ptr;
52
53 memset(kq->eop_kernel_addr, 0, PAGE_SIZE);
54
55 return true;
56}
57
58static void uninitialize_vi(struct kernel_queue *kq)
59{
60 kfd_gtt_sa_free(kq->dev, kq->eop_mem);
61}
62
63static void submit_packet_vi(struct kernel_queue *kq)
64{
65 *kq->wptr_kernel = kq->pending_wptr;
66 write_kernel_doorbell(kq->queue->properties.doorbell_ptr,
67 kq->pending_wptr);
68}
69
70unsigned int pm_build_pm4_header(unsigned int opcode, size_t packet_size)
71{
72 union PM4_MES_TYPE_3_HEADER header;
73
74 header.u32All = 0;
75 header.opcode = opcode;
76 header.count = packet_size / 4 - 2;
77 header.type = PM4_TYPE_3;
78
79 return header.u32All;
80}
81
82static int pm_map_process_vi(struct packet_manager *pm, uint32_t *buffer,
83 struct qcm_process_device *qpd)
84{
85 struct pm4_mes_map_process *packet;
86
87 packet = (struct pm4_mes_map_process *)buffer;
88
89 memset(buffer, 0, sizeof(struct pm4_mes_map_process));
90
91 packet->header.u32All = pm_build_pm4_header(IT_MAP_PROCESS,
92 sizeof(struct pm4_mes_map_process));
93 packet->bitfields2.diq_enable = (qpd->is_debug) ? 1 : 0;
94 packet->bitfields2.process_quantum = 1;
95 packet->bitfields2.pasid = qpd->pqm->process->pasid;
96 packet->bitfields3.page_table_base = qpd->page_table_base;
97 packet->bitfields10.gds_size = qpd->gds_size;
98 packet->bitfields10.num_gws = qpd->num_gws;
99 packet->bitfields10.num_oac = qpd->num_oac;
100 packet->bitfields10.num_queues = (qpd->is_debug) ? 0 : qpd->queue_count;
101
102 packet->sh_mem_config = qpd->sh_mem_config;
103 packet->sh_mem_bases = qpd->sh_mem_bases;
104 packet->sh_mem_ape1_base = qpd->sh_mem_ape1_base;
105 packet->sh_mem_ape1_limit = qpd->sh_mem_ape1_limit;
106
107 packet->sh_hidden_private_base_vmid = qpd->sh_hidden_private_base;
108
109 packet->gds_addr_lo = lower_32_bits(qpd->gds_context_area);
110 packet->gds_addr_hi = upper_32_bits(qpd->gds_context_area);
111
112 return 0;
113}
114
115static int pm_runlist_vi(struct packet_manager *pm, uint32_t *buffer,
116 uint64_t ib, size_t ib_size_in_dwords, bool chain)
117{
118 struct pm4_mes_runlist *packet;
119 int concurrent_proc_cnt = 0;
120 struct kfd_dev *kfd = pm->dqm->dev;
121
122 if (WARN_ON(!ib))
123 return -EFAULT;
124
125 /* Determine the number of processes to map together to HW:
126 * it can not exceed the number of VMIDs available to the
127 * scheduler, and it is determined by the smaller of the number
128 * of processes in the runlist and kfd module parameter
129 * hws_max_conc_proc.
130 * Note: the arbitration between the number of VMIDs and
131 * hws_max_conc_proc has been done in
132 * kgd2kfd_device_init().
133 */
134 concurrent_proc_cnt = min(pm->dqm->processes_count,
135 kfd->max_proc_per_quantum);
136
137 packet = (struct pm4_mes_runlist *)buffer;
138
139 memset(buffer, 0, sizeof(struct pm4_mes_runlist));
140 packet->header.u32All = pm_build_pm4_header(IT_RUN_LIST,
141 sizeof(struct pm4_mes_runlist));
142
143 packet->bitfields4.ib_size = ib_size_in_dwords;
144 packet->bitfields4.chain = chain ? 1 : 0;
145 packet->bitfields4.offload_polling = 0;
146 packet->bitfields4.valid = 1;
147 packet->bitfields4.process_cnt = concurrent_proc_cnt;
148 packet->ordinal2 = lower_32_bits(ib);
149 packet->bitfields3.ib_base_hi = upper_32_bits(ib);
150
151 return 0;
152}
153
154int pm_set_resources_vi(struct packet_manager *pm, uint32_t *buffer,
155 struct scheduling_resources *res)
156{
157 struct pm4_mes_set_resources *packet;
158
159 packet = (struct pm4_mes_set_resources *)buffer;
160 memset(buffer, 0, sizeof(struct pm4_mes_set_resources));
161
162 packet->header.u32All = pm_build_pm4_header(IT_SET_RESOURCES,
163 sizeof(struct pm4_mes_set_resources));
164
165 packet->bitfields2.queue_type =
166 queue_type__mes_set_resources__hsa_interface_queue_hiq;
167 packet->bitfields2.vmid_mask = res->vmid_mask;
168 packet->bitfields2.unmap_latency = KFD_UNMAP_LATENCY_MS / 100;
169 packet->bitfields7.oac_mask = res->oac_mask;
170 packet->bitfields8.gds_heap_base = res->gds_heap_base;
171 packet->bitfields8.gds_heap_size = res->gds_heap_size;
172
173 packet->gws_mask_lo = lower_32_bits(res->gws_mask);
174 packet->gws_mask_hi = upper_32_bits(res->gws_mask);
175
176 packet->queue_mask_lo = lower_32_bits(res->queue_mask);
177 packet->queue_mask_hi = upper_32_bits(res->queue_mask);
178
179 return 0;
180}
181
182static int pm_map_queues_vi(struct packet_manager *pm, uint32_t *buffer,
183 struct queue *q, bool is_static)
184{
185 struct pm4_mes_map_queues *packet;
186 bool use_static = is_static;
187
188 packet = (struct pm4_mes_map_queues *)buffer;
189 memset(buffer, 0, sizeof(struct pm4_mes_map_queues));
190
191 packet->header.u32All = pm_build_pm4_header(IT_MAP_QUEUES,
192 sizeof(struct pm4_mes_map_queues));
193 packet->bitfields2.alloc_format =
194 alloc_format__mes_map_queues__one_per_pipe_vi;
195 packet->bitfields2.num_queues = 1;
196 packet->bitfields2.queue_sel =
197 queue_sel__mes_map_queues__map_to_hws_determined_queue_slots_vi;
198
199 packet->bitfields2.engine_sel =
200 engine_sel__mes_map_queues__compute_vi;
201 packet->bitfields2.queue_type =
202 queue_type__mes_map_queues__normal_compute_vi;
203
204 switch (q->properties.type) {
205 case KFD_QUEUE_TYPE_COMPUTE:
206 if (use_static)
207 packet->bitfields2.queue_type =
208 queue_type__mes_map_queues__normal_latency_static_queue_vi;
209 break;
210 case KFD_QUEUE_TYPE_DIQ:
211 packet->bitfields2.queue_type =
212 queue_type__mes_map_queues__debug_interface_queue_vi;
213 break;
214 case KFD_QUEUE_TYPE_SDMA:
215 packet->bitfields2.engine_sel = q->properties.sdma_engine_id +
216 engine_sel__mes_map_queues__sdma0_vi;
217 use_static = false; /* no static queues under SDMA */
218 break;
219 default:
220 WARN(1, "queue type %d", q->properties.type);
221 return -EINVAL;
222 }
223 packet->bitfields3.doorbell_offset =
224 q->properties.doorbell_off;
225
226 packet->mqd_addr_lo =
227 lower_32_bits(q->gart_mqd_addr);
228
229 packet->mqd_addr_hi =
230 upper_32_bits(q->gart_mqd_addr);
231
232 packet->wptr_addr_lo =
233 lower_32_bits((uint64_t)q->properties.write_ptr);
234
235 packet->wptr_addr_hi =
236 upper_32_bits((uint64_t)q->properties.write_ptr);
237
238 return 0;
239}
240
241static int pm_unmap_queues_vi(struct packet_manager *pm, uint32_t *buffer,
242 enum kfd_queue_type type,
243 enum kfd_unmap_queues_filter filter,
244 uint32_t filter_param, bool reset,
245 unsigned int sdma_engine)
246{
247 struct pm4_mes_unmap_queues *packet;
248
249 packet = (struct pm4_mes_unmap_queues *)buffer;
250 memset(buffer, 0, sizeof(struct pm4_mes_unmap_queues));
251
252 packet->header.u32All = pm_build_pm4_header(IT_UNMAP_QUEUES,
253 sizeof(struct pm4_mes_unmap_queues));
254 switch (type) {
255 case KFD_QUEUE_TYPE_COMPUTE:
256 case KFD_QUEUE_TYPE_DIQ:
257 packet->bitfields2.engine_sel =
258 engine_sel__mes_unmap_queues__compute;
259 break;
260 case KFD_QUEUE_TYPE_SDMA:
261 packet->bitfields2.engine_sel =
262 engine_sel__mes_unmap_queues__sdma0 + sdma_engine;
263 break;
264 default:
265 WARN(1, "queue type %d", type);
266 return -EINVAL;
267 }
268
269 if (reset)
270 packet->bitfields2.action =
271 action__mes_unmap_queues__reset_queues;
272 else
273 packet->bitfields2.action =
274 action__mes_unmap_queues__preempt_queues;
275
276 switch (filter) {
277 case KFD_UNMAP_QUEUES_FILTER_SINGLE_QUEUE:
278 packet->bitfields2.queue_sel =
279 queue_sel__mes_unmap_queues__perform_request_on_specified_queues;
280 packet->bitfields2.num_queues = 1;
281 packet->bitfields3b.doorbell_offset0 = filter_param;
282 break;
283 case KFD_UNMAP_QUEUES_FILTER_BY_PASID:
284 packet->bitfields2.queue_sel =
285 queue_sel__mes_unmap_queues__perform_request_on_pasid_queues;
286 packet->bitfields3a.pasid = filter_param;
287 break;
288 case KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES:
289 packet->bitfields2.queue_sel =
290 queue_sel__mes_unmap_queues__unmap_all_queues;
291 break;
292 case KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES:
293 /* in this case, we do not preempt static queues */
294 packet->bitfields2.queue_sel =
295 queue_sel__mes_unmap_queues__unmap_all_non_static_queues;
296 break;
297 default:
298 WARN(1, "filter %d", filter);
299 return -EINVAL;
300 }
301
302 return 0;
303
304}
305
306static int pm_query_status_vi(struct packet_manager *pm, uint32_t *buffer,
307 uint64_t fence_address, uint32_t fence_value)
308{
309 struct pm4_mes_query_status *packet;
310
311 packet = (struct pm4_mes_query_status *)buffer;
312 memset(buffer, 0, sizeof(struct pm4_mes_query_status));
313
314 packet->header.u32All = pm_build_pm4_header(IT_QUERY_STATUS,
315 sizeof(struct pm4_mes_query_status));
316
317 packet->bitfields2.context_id = 0;
318 packet->bitfields2.interrupt_sel =
319 interrupt_sel__mes_query_status__completion_status;
320 packet->bitfields2.command =
321 command__mes_query_status__fence_only_after_write_ack;
322
323 packet->addr_hi = upper_32_bits((uint64_t)fence_address);
324 packet->addr_lo = lower_32_bits((uint64_t)fence_address);
325 packet->data_hi = upper_32_bits((uint64_t)fence_value);
326 packet->data_lo = lower_32_bits((uint64_t)fence_value);
327
328 return 0;
329}
330
331static int pm_release_mem_vi(uint64_t gpu_addr, uint32_t *buffer)
332{
333 struct pm4_mec_release_mem *packet;
334
335 packet = (struct pm4_mec_release_mem *)buffer;
336 memset(buffer, 0, sizeof(*packet));
337
338 packet->header.u32All = pm_build_pm4_header(IT_RELEASE_MEM,
339 sizeof(*packet));
340
341 packet->bitfields2.event_type = CACHE_FLUSH_AND_INV_TS_EVENT;
342 packet->bitfields2.event_index = event_index___release_mem__end_of_pipe;
343 packet->bitfields2.tcl1_action_ena = 1;
344 packet->bitfields2.tc_action_ena = 1;
345 packet->bitfields2.cache_policy = cache_policy___release_mem__lru;
346 packet->bitfields2.atc = 0;
347
348 packet->bitfields3.data_sel = data_sel___release_mem__send_32_bit_low;
349 packet->bitfields3.int_sel =
350 int_sel___release_mem__send_interrupt_after_write_confirm;
351
352 packet->bitfields4.address_lo_32b = (gpu_addr & 0xffffffff) >> 2;
353 packet->address_hi = upper_32_bits(gpu_addr);
354
355 packet->data_lo = 0;
356
357 return 0;
358}
359
360const struct packet_manager_funcs kfd_vi_pm_funcs = {
361 .map_process = pm_map_process_vi,
362 .runlist = pm_runlist_vi,
363 .set_resources = pm_set_resources_vi,
364 .map_queues = pm_map_queues_vi,
365 .unmap_queues = pm_unmap_queues_vi,
366 .query_status = pm_query_status_vi,
367 .release_mem = pm_release_mem_vi,
368 .map_process_size = sizeof(struct pm4_mes_map_process),
369 .runlist_size = sizeof(struct pm4_mes_runlist),
370 .set_resources_size = sizeof(struct pm4_mes_set_resources),
371 .map_queues_size = sizeof(struct pm4_mes_map_queues),
372 .unmap_queues_size = sizeof(struct pm4_mes_unmap_queues),
373 .query_status_size = sizeof(struct pm4_mes_query_status),
374 .release_mem_size = sizeof(struct pm4_mec_release_mem)
375};