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1 /*
2  * Copyright © 2021 Intel Corporation
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 (including the next
12  * paragraph) shall be included in all copies or substantial portions of the
13  * 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 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21  * IN THE SOFTWARE.
22  */
23 
24 #include "anv_private.h"
25 
26 #include "perf/intel_perf.h"
27 
28 static uint32_t
command_buffers_count_utraces(struct anv_device * device,uint32_t cmd_buffer_count,struct anv_cmd_buffer ** cmd_buffers,uint32_t * utrace_copies)29 command_buffers_count_utraces(struct anv_device *device,
30                               uint32_t cmd_buffer_count,
31                               struct anv_cmd_buffer **cmd_buffers,
32                               uint32_t *utrace_copies)
33 {
34    if (!u_trace_context_actively_tracing(&device->ds.trace_context))
35       return 0;
36 
37    uint32_t utraces = 0;
38    for (uint32_t i = 0; i < cmd_buffer_count; i++) {
39       if (u_trace_has_points(&cmd_buffers[i]->trace)) {
40          utraces++;
41          if (!(cmd_buffers[i]->usage_flags & VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT))
42             *utrace_copies += list_length(&cmd_buffers[i]->trace.trace_chunks);
43       }
44    }
45 
46    return utraces;
47 }
48 
49 static void
anv_utrace_delete_flush_data(struct u_trace_context * utctx,void * flush_data)50 anv_utrace_delete_flush_data(struct u_trace_context *utctx,
51                              void *flush_data)
52 {
53    struct anv_device *device =
54       container_of(utctx, struct anv_device, ds.trace_context);
55    struct anv_utrace_flush_copy *flush = flush_data;
56 
57    intel_ds_flush_data_fini(&flush->ds);
58 
59    if (flush->trace_bo) {
60       assert(flush->batch_bo);
61       anv_reloc_list_finish(&flush->relocs, &device->vk.alloc);
62       anv_device_release_bo(device, flush->batch_bo);
63       anv_device_release_bo(device, flush->trace_bo);
64    }
65 
66    vk_sync_destroy(&device->vk, flush->sync);
67 
68    vk_free(&device->vk.alloc, flush);
69 }
70 
71 static void
anv_device_utrace_emit_copy_ts_buffer(struct u_trace_context * utctx,void * cmdstream,void * ts_from,uint32_t from_offset,void * ts_to,uint32_t to_offset,uint32_t count)72 anv_device_utrace_emit_copy_ts_buffer(struct u_trace_context *utctx,
73                                       void *cmdstream,
74                                       void *ts_from, uint32_t from_offset,
75                                       void *ts_to, uint32_t to_offset,
76                                       uint32_t count)
77 {
78    struct anv_device *device =
79       container_of(utctx, struct anv_device, ds.trace_context);
80    struct anv_utrace_flush_copy *flush = cmdstream;
81    struct anv_address from_addr = (struct anv_address) {
82       .bo = ts_from, .offset = from_offset * sizeof(uint64_t) };
83    struct anv_address to_addr = (struct anv_address) {
84       .bo = ts_to, .offset = to_offset * sizeof(uint64_t) };
85 
86    anv_genX(&device->info, emit_so_memcpy)(&flush->memcpy_state,
87                                            to_addr, from_addr, count * sizeof(uint64_t));
88 }
89 
90 VkResult
anv_device_utrace_flush_cmd_buffers(struct anv_queue * queue,uint32_t cmd_buffer_count,struct anv_cmd_buffer ** cmd_buffers,struct anv_utrace_flush_copy ** out_flush_data)91 anv_device_utrace_flush_cmd_buffers(struct anv_queue *queue,
92                                     uint32_t cmd_buffer_count,
93                                     struct anv_cmd_buffer **cmd_buffers,
94                                     struct anv_utrace_flush_copy **out_flush_data)
95 {
96    struct anv_device *device = queue->device;
97    uint32_t utrace_copies = 0;
98    uint32_t utraces = command_buffers_count_utraces(device,
99                                                     cmd_buffer_count,
100                                                     cmd_buffers,
101                                                     &utrace_copies);
102    if (!utraces) {
103       *out_flush_data = NULL;
104       return VK_SUCCESS;
105    }
106 
107    VkResult result;
108    struct anv_utrace_flush_copy *flush =
109       vk_zalloc(&device->vk.alloc, sizeof(struct anv_utrace_flush_copy),
110                 8, VK_SYSTEM_ALLOCATION_SCOPE_DEVICE);
111    if (!flush)
112       return vk_error(device, VK_ERROR_OUT_OF_HOST_MEMORY);
113 
114    intel_ds_flush_data_init(&flush->ds, queue->ds, queue->ds->submission_id);
115 
116    result = vk_sync_create(&device->vk, &device->physical->sync_syncobj_type,
117                            0, 0, &flush->sync);
118    if (result != VK_SUCCESS)
119       goto error_sync;
120 
121    if (utrace_copies > 0) {
122       result = anv_bo_pool_alloc(&device->utrace_bo_pool,
123                                  utrace_copies * 4096,
124                                  &flush->trace_bo);
125       if (result != VK_SUCCESS)
126          goto error_trace_buf;
127 
128       result = anv_bo_pool_alloc(&device->utrace_bo_pool,
129                                  /* 128 dwords of setup + 64 dwords per copy */
130                                  align_u32(512 + 64 * utrace_copies, 4096),
131                                  &flush->batch_bo);
132       if (result != VK_SUCCESS)
133          goto error_batch_buf;
134 
135       result = anv_reloc_list_init(&flush->relocs, &device->vk.alloc);
136       if (result != VK_SUCCESS)
137          goto error_reloc_list;
138 
139       flush->batch.alloc = &device->vk.alloc;
140       flush->batch.relocs = &flush->relocs;
141       anv_batch_set_storage(&flush->batch,
142                             (struct anv_address) { .bo = flush->batch_bo, },
143                             flush->batch_bo->map, flush->batch_bo->size);
144 
145       /* Emit the copies */
146       anv_genX(&device->info, emit_so_memcpy_init)(&flush->memcpy_state,
147                                                    device,
148                                                    &flush->batch);
149       for (uint32_t i = 0; i < cmd_buffer_count; i++) {
150          if (cmd_buffers[i]->usage_flags & VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT) {
151             u_trace_flush(&cmd_buffers[i]->trace, flush, false);
152          } else {
153             u_trace_clone_append(u_trace_begin_iterator(&cmd_buffers[i]->trace),
154                                  u_trace_end_iterator(&cmd_buffers[i]->trace),
155                                  &flush->ds.trace,
156                                  flush,
157                                  anv_device_utrace_emit_copy_ts_buffer);
158          }
159       }
160       anv_genX(&device->info, emit_so_memcpy_fini)(&flush->memcpy_state);
161 
162       u_trace_flush(&flush->ds.trace, flush, true);
163 
164       if (flush->batch.status != VK_SUCCESS) {
165          result = flush->batch.status;
166          goto error_batch;
167       }
168    } else {
169       for (uint32_t i = 0; i < cmd_buffer_count; i++) {
170          assert(cmd_buffers[i]->usage_flags & VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT);
171          u_trace_flush(&cmd_buffers[i]->trace, flush, i == (cmd_buffer_count - 1));
172       }
173    }
174 
175    flush->queue = queue;
176 
177    *out_flush_data = flush;
178 
179    return VK_SUCCESS;
180 
181  error_batch:
182    anv_reloc_list_finish(&flush->relocs, &device->vk.alloc);
183  error_reloc_list:
184    anv_bo_pool_free(&device->utrace_bo_pool, flush->batch_bo);
185  error_batch_buf:
186    anv_bo_pool_free(&device->utrace_bo_pool, flush->trace_bo);
187  error_trace_buf:
188    vk_sync_destroy(&device->vk, flush->sync);
189  error_sync:
190    vk_free(&device->vk.alloc, flush);
191    return result;
192 }
193 
194 static void *
anv_utrace_create_ts_buffer(struct u_trace_context * utctx,uint32_t size_b)195 anv_utrace_create_ts_buffer(struct u_trace_context *utctx, uint32_t size_b)
196 {
197    struct anv_device *device =
198       container_of(utctx, struct anv_device, ds.trace_context);
199 
200    struct anv_bo *bo = NULL;
201    UNUSED VkResult result =
202       anv_bo_pool_alloc(&device->utrace_bo_pool,
203                         align_u32(size_b, 4096),
204                         &bo);
205    assert(result == VK_SUCCESS);
206 
207    return bo;
208 }
209 
210 static void
anv_utrace_destroy_ts_buffer(struct u_trace_context * utctx,void * timestamps)211 anv_utrace_destroy_ts_buffer(struct u_trace_context *utctx, void *timestamps)
212 {
213    struct anv_device *device =
214       container_of(utctx, struct anv_device, ds.trace_context);
215    struct anv_bo *bo = timestamps;
216 
217    anv_bo_pool_free(&device->utrace_bo_pool, bo);
218 }
219 
220 static void
anv_utrace_record_ts(struct u_trace * ut,void * cs,void * timestamps,unsigned idx,bool end_of_pipe)221 anv_utrace_record_ts(struct u_trace *ut, void *cs,
222                      void *timestamps, unsigned idx,
223                      bool end_of_pipe)
224 {
225    struct anv_cmd_buffer *cmd_buffer =
226       container_of(ut, struct anv_cmd_buffer, trace);
227    struct anv_device *device = cmd_buffer->device;
228    struct anv_bo *bo = timestamps;
229 
230    device->physical->cmd_emit_timestamp(&cmd_buffer->batch, device,
231                                         (struct anv_address) {
232                                            .bo = bo,
233                                            .offset = idx * sizeof(uint64_t) },
234                                         end_of_pipe);
235 }
236 
237 static uint64_t
anv_utrace_read_ts(struct u_trace_context * utctx,void * timestamps,unsigned idx,void * flush_data)238 anv_utrace_read_ts(struct u_trace_context *utctx,
239                    void *timestamps, unsigned idx, void *flush_data)
240 {
241    struct anv_device *device =
242       container_of(utctx, struct anv_device, ds.trace_context);
243    struct anv_bo *bo = timestamps;
244    struct anv_utrace_flush_copy *flush = flush_data;
245 
246    /* Only need to stall on results for the first entry: */
247    if (idx == 0) {
248       UNUSED VkResult result =
249          vk_sync_wait(&device->vk,
250                       flush->sync,
251                       0,
252                       VK_SYNC_WAIT_COMPLETE,
253                       os_time_get_absolute_timeout(OS_TIMEOUT_INFINITE));
254       assert(result == VK_SUCCESS);
255    }
256 
257    uint64_t *ts = bo->map;
258 
259    /* Don't translate the no-timestamp marker: */
260    if (ts[idx] == U_TRACE_NO_TIMESTAMP)
261       return U_TRACE_NO_TIMESTAMP;
262 
263    return intel_device_info_timebase_scale(&device->info, ts[idx]);
264 }
265 
266 static const char *
queue_family_to_name(const struct anv_queue_family * family)267 queue_family_to_name(const struct anv_queue_family *family)
268 {
269    switch (family->engine_class) {
270    case I915_ENGINE_CLASS_RENDER:
271       return "render";
272    case I915_ENGINE_CLASS_COPY:
273       return "copy";
274    case I915_ENGINE_CLASS_VIDEO:
275       return "video";
276    case I915_ENGINE_CLASS_VIDEO_ENHANCE:
277       return "video-enh";
278    default:
279       return "unknown";
280    }
281 }
282 
283 void
anv_device_utrace_init(struct anv_device * device)284 anv_device_utrace_init(struct anv_device *device)
285 {
286    anv_bo_pool_init(&device->utrace_bo_pool, device, "utrace");
287    intel_ds_device_init(&device->ds, &device->info, device->fd,
288                         device->physical->local_minor - 128,
289                         INTEL_DS_API_VULKAN);
290    u_trace_context_init(&device->ds.trace_context,
291                         &device->ds,
292                         anv_utrace_create_ts_buffer,
293                         anv_utrace_destroy_ts_buffer,
294                         anv_utrace_record_ts,
295                         anv_utrace_read_ts,
296                         anv_utrace_delete_flush_data);
297 
298    for (uint32_t q = 0; q < device->queue_count; q++) {
299       struct anv_queue *queue = &device->queues[q];
300 
301       queue->ds =
302          intel_ds_device_add_queue(&device->ds, "%s%u",
303                                    queue_family_to_name(queue->family),
304                                    queue->index_in_family);
305    }
306 }
307 
308 void
anv_device_utrace_finish(struct anv_device * device)309 anv_device_utrace_finish(struct anv_device *device)
310 {
311    u_trace_context_process(&device->ds.trace_context, true);
312    intel_ds_device_fini(&device->ds);
313    anv_bo_pool_finish(&device->utrace_bo_pool);
314 }
315 
316 enum intel_ds_stall_flag
anv_pipe_flush_bit_to_ds_stall_flag(enum anv_pipe_bits bits)317 anv_pipe_flush_bit_to_ds_stall_flag(enum anv_pipe_bits bits)
318 {
319    static const struct {
320       enum anv_pipe_bits anv;
321       enum intel_ds_stall_flag ds;
322    } anv_to_ds_flags[] = {
323       { .anv = ANV_PIPE_DEPTH_CACHE_FLUSH_BIT,            .ds = INTEL_DS_DEPTH_CACHE_FLUSH_BIT, },
324       { .anv = ANV_PIPE_DATA_CACHE_FLUSH_BIT,             .ds = INTEL_DS_DATA_CACHE_FLUSH_BIT, },
325       { .anv = ANV_PIPE_TILE_CACHE_FLUSH_BIT,             .ds = INTEL_DS_TILE_CACHE_FLUSH_BIT, },
326       { .anv = ANV_PIPE_RENDER_TARGET_CACHE_FLUSH_BIT,    .ds = INTEL_DS_RENDER_TARGET_CACHE_FLUSH_BIT, },
327       { .anv = ANV_PIPE_STATE_CACHE_INVALIDATE_BIT,       .ds = INTEL_DS_STATE_CACHE_INVALIDATE_BIT, },
328       { .anv = ANV_PIPE_CONSTANT_CACHE_INVALIDATE_BIT,    .ds = INTEL_DS_CONST_CACHE_INVALIDATE_BIT, },
329       { .anv = ANV_PIPE_VF_CACHE_INVALIDATE_BIT,          .ds = INTEL_DS_VF_CACHE_INVALIDATE_BIT, },
330       { .anv = ANV_PIPE_TEXTURE_CACHE_INVALIDATE_BIT,     .ds = INTEL_DS_TEXTURE_CACHE_INVALIDATE_BIT, },
331       { .anv = ANV_PIPE_INSTRUCTION_CACHE_INVALIDATE_BIT, .ds = INTEL_DS_INST_CACHE_INVALIDATE_BIT, },
332       { .anv = ANV_PIPE_DEPTH_STALL_BIT,                  .ds = INTEL_DS_DEPTH_STALL_BIT, },
333       { .anv = ANV_PIPE_CS_STALL_BIT,                     .ds = INTEL_DS_CS_STALL_BIT, },
334       { .anv = ANV_PIPE_HDC_PIPELINE_FLUSH_BIT,           .ds = INTEL_DS_HDC_PIPELINE_FLUSH_BIT, },
335       { .anv = ANV_PIPE_STALL_AT_SCOREBOARD_BIT,          .ds = INTEL_DS_STALL_AT_SCOREBOARD_BIT, },
336    };
337 
338    enum intel_ds_stall_flag ret = 0;
339    for (uint32_t i = 0; i < ARRAY_SIZE(anv_to_ds_flags); i++) {
340       if (anv_to_ds_flags[i].anv & bits)
341          ret |= anv_to_ds_flags[i].ds;
342    }
343 
344    return ret;
345 }
346