1 /*
2 * Copyright © 2008 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 * Authors:
24 * Eric Anholt <eric@anholt.net>
25 *
26 */
27
28 /** @file brw_queryobj.c
29 *
30 * Support for query objects (GL_ARB_occlusion_query, GL_ARB_timer_query,
31 * GL_EXT_transform_feedback, and friends).
32 *
33 * The hardware provides a PIPE_CONTROL command that can report the number of
34 * fragments that passed the depth test, or the hardware timer. They are
35 * appropriately synced with the stage of the pipeline for our extensions'
36 * needs.
37 */
38 #include "main/imports.h"
39
40 #include "brw_context.h"
41 #include "brw_defines.h"
42 #include "brw_state.h"
43 #include "intel_batchbuffer.h"
44
45 uint64_t
brw_timebase_scale(struct brw_context * brw,uint64_t gpu_timestamp)46 brw_timebase_scale(struct brw_context *brw, uint64_t gpu_timestamp)
47 {
48 const struct gen_device_info *devinfo = &brw->screen->devinfo;
49
50 return (1000000000ull * gpu_timestamp) / devinfo->timestamp_frequency;
51 }
52
53 /* As best we know currently, the Gen HW timestamps are 36bits across
54 * all platforms, which we need to account for when calculating a
55 * delta to measure elapsed time.
56 *
57 * The timestamps read via glGetTimestamp() / brw_get_timestamp() sometimes
58 * only have 32bits due to a kernel bug and so in that case we make sure to
59 * treat all raw timestamps as 32bits so they overflow consistently and remain
60 * comparable. (Note: the timestamps being passed here are not from the kernel
61 * so we don't need to be taking the upper 32bits in this buggy kernel case we
62 * are just clipping to 32bits here for consistency.)
63 */
64 uint64_t
brw_raw_timestamp_delta(struct brw_context * brw,uint64_t time0,uint64_t time1)65 brw_raw_timestamp_delta(struct brw_context *brw, uint64_t time0, uint64_t time1)
66 {
67 if (brw->screen->hw_has_timestamp == 2) {
68 /* Kernel clips timestamps to 32bits in this case, so we also clip
69 * PIPE_CONTROL timestamps for consistency.
70 */
71 return (uint32_t)time1 - (uint32_t)time0;
72 } else {
73 if (time0 > time1) {
74 return (1ULL << 36) + time1 - time0;
75 } else {
76 return time1 - time0;
77 }
78 }
79 }
80
81 /**
82 * Emit PIPE_CONTROLs to write the current GPU timestamp into a buffer.
83 */
84 void
brw_write_timestamp(struct brw_context * brw,struct brw_bo * query_bo,int idx)85 brw_write_timestamp(struct brw_context *brw, struct brw_bo *query_bo, int idx)
86 {
87 const struct gen_device_info *devinfo = &brw->screen->devinfo;
88
89 if (devinfo->gen == 6) {
90 /* Emit Sandybridge workaround flush: */
91 brw_emit_pipe_control_flush(brw,
92 PIPE_CONTROL_CS_STALL |
93 PIPE_CONTROL_STALL_AT_SCOREBOARD);
94 }
95
96 uint32_t flags = PIPE_CONTROL_WRITE_TIMESTAMP;
97
98 if (devinfo->gen == 9 && devinfo->gt == 4)
99 flags |= PIPE_CONTROL_CS_STALL;
100
101 brw_emit_pipe_control_write(brw, flags,
102 query_bo, idx * sizeof(uint64_t), 0);
103 }
104
105 /**
106 * Emit PIPE_CONTROLs to write the PS_DEPTH_COUNT register into a buffer.
107 */
108 void
brw_write_depth_count(struct brw_context * brw,struct brw_bo * query_bo,int idx)109 brw_write_depth_count(struct brw_context *brw, struct brw_bo *query_bo, int idx)
110 {
111 const struct gen_device_info *devinfo = &brw->screen->devinfo;
112 uint32_t flags = PIPE_CONTROL_WRITE_DEPTH_COUNT | PIPE_CONTROL_DEPTH_STALL;
113
114 if (devinfo->gen == 9 && devinfo->gt == 4)
115 flags |= PIPE_CONTROL_CS_STALL;
116
117 if (devinfo->gen >= 10) {
118 /* "Driver must program PIPE_CONTROL with only Depth Stall Enable bit set
119 * prior to programming a PIPE_CONTROL with Write PS Depth Count Post sync
120 * operation."
121 */
122 brw_emit_pipe_control_flush(brw, PIPE_CONTROL_DEPTH_STALL);
123 }
124
125 brw_emit_pipe_control_write(brw, flags,
126 query_bo, idx * sizeof(uint64_t), 0);
127 }
128
129 /**
130 * Wait on the query object's BO and calculate the final result.
131 */
132 static void
brw_queryobj_get_results(struct gl_context * ctx,struct brw_query_object * query)133 brw_queryobj_get_results(struct gl_context *ctx,
134 struct brw_query_object *query)
135 {
136 struct brw_context *brw = brw_context(ctx);
137 const struct gen_device_info *devinfo = &brw->screen->devinfo;
138
139 int i;
140 uint64_t *results;
141
142 assert(devinfo->gen < 6);
143
144 if (query->bo == NULL)
145 return;
146
147 /* If the application has requested the query result, but this batch is
148 * still contributing to it, flush it now so the results will be present
149 * when mapped.
150 */
151 if (brw_batch_references(&brw->batch, query->bo))
152 intel_batchbuffer_flush(brw);
153
154 if (unlikely(brw->perf_debug)) {
155 if (brw_bo_busy(query->bo)) {
156 perf_debug("Stalling on the GPU waiting for a query object.\n");
157 }
158 }
159
160 results = brw_bo_map(brw, query->bo, MAP_READ);
161 switch (query->Base.Target) {
162 case GL_TIME_ELAPSED_EXT:
163 /* The query BO contains the starting and ending timestamps.
164 * Subtract the two and convert to nanoseconds.
165 */
166 query->Base.Result = brw_raw_timestamp_delta(brw, results[0], results[1]);
167 query->Base.Result = brw_timebase_scale(brw, query->Base.Result);
168 break;
169
170 case GL_TIMESTAMP:
171 /* The query BO contains a single timestamp value in results[0]. */
172 query->Base.Result = brw_timebase_scale(brw, results[0]);
173
174 /* Ensure the scaled timestamp overflows according to
175 * GL_QUERY_COUNTER_BITS
176 */
177 query->Base.Result &= (1ull << ctx->Const.QueryCounterBits.Timestamp) - 1;
178 break;
179
180 case GL_SAMPLES_PASSED_ARB:
181 /* Loop over pairs of values from the BO, which are the PS_DEPTH_COUNT
182 * value at the start and end of the batchbuffer. Subtract them to
183 * get the number of fragments which passed the depth test in each
184 * individual batch, and add those differences up to get the number
185 * of fragments for the entire query.
186 *
187 * Note that query->Base.Result may already be non-zero. We may have
188 * run out of space in the query's BO and allocated a new one. If so,
189 * this function was already called to accumulate the results so far.
190 */
191 for (i = 0; i < query->last_index; i++) {
192 query->Base.Result += results[i * 2 + 1] - results[i * 2];
193 }
194 break;
195
196 case GL_ANY_SAMPLES_PASSED:
197 case GL_ANY_SAMPLES_PASSED_CONSERVATIVE:
198 /* If the starting and ending PS_DEPTH_COUNT from any of the batches
199 * differ, then some fragments passed the depth test.
200 */
201 for (i = 0; i < query->last_index; i++) {
202 if (results[i * 2 + 1] != results[i * 2]) {
203 query->Base.Result = GL_TRUE;
204 break;
205 }
206 }
207 break;
208
209 default:
210 unreachable("Unrecognized query target in brw_queryobj_get_results()");
211 }
212 brw_bo_unmap(query->bo);
213
214 /* Now that we've processed the data stored in the query's buffer object,
215 * we can release it.
216 */
217 brw_bo_unreference(query->bo);
218 query->bo = NULL;
219 }
220
221 /**
222 * The NewQueryObject() driver hook.
223 *
224 * Allocates and initializes a new query object.
225 */
226 static struct gl_query_object *
brw_new_query_object(struct gl_context * ctx,GLuint id)227 brw_new_query_object(struct gl_context *ctx, GLuint id)
228 {
229 struct brw_query_object *query;
230
231 query = calloc(1, sizeof(struct brw_query_object));
232
233 query->Base.Id = id;
234 query->Base.Result = 0;
235 query->Base.Active = false;
236 query->Base.Ready = true;
237
238 return &query->Base;
239 }
240
241 /**
242 * The DeleteQuery() driver hook.
243 */
244 static void
brw_delete_query(struct gl_context * ctx,struct gl_query_object * q)245 brw_delete_query(struct gl_context *ctx, struct gl_query_object *q)
246 {
247 struct brw_query_object *query = (struct brw_query_object *)q;
248
249 brw_bo_unreference(query->bo);
250 free(query);
251 }
252
253 /**
254 * Gen4-5 driver hook for glBeginQuery().
255 *
256 * Initializes driver structures and emits any GPU commands required to begin
257 * recording data for the query.
258 */
259 static void
brw_begin_query(struct gl_context * ctx,struct gl_query_object * q)260 brw_begin_query(struct gl_context *ctx, struct gl_query_object *q)
261 {
262 struct brw_context *brw = brw_context(ctx);
263 struct brw_query_object *query = (struct brw_query_object *)q;
264 const struct gen_device_info *devinfo = &brw->screen->devinfo;
265
266 assert(devinfo->gen < 6);
267
268 switch (query->Base.Target) {
269 case GL_TIME_ELAPSED_EXT:
270 /* For timestamp queries, we record the starting time right away so that
271 * we measure the full time between BeginQuery and EndQuery. There's
272 * some debate about whether this is the right thing to do. Our decision
273 * is based on the following text from the ARB_timer_query extension:
274 *
275 * "(5) Should the extension measure total time elapsed between the full
276 * completion of the BeginQuery and EndQuery commands, or just time
277 * spent in the graphics library?
278 *
279 * RESOLVED: This extension will measure the total time elapsed
280 * between the full completion of these commands. Future extensions
281 * may implement a query to determine time elapsed at different stages
282 * of the graphics pipeline."
283 *
284 * We write a starting timestamp now (at index 0). At EndQuery() time,
285 * we'll write a second timestamp (at index 1), and subtract the two to
286 * obtain the time elapsed. Notably, this includes time elapsed while
287 * the system was doing other work, such as running other applications.
288 */
289 brw_bo_unreference(query->bo);
290 query->bo = brw_bo_alloc(brw->bufmgr, "timer query", 4096, 4096);
291 brw_write_timestamp(brw, query->bo, 0);
292 break;
293
294 case GL_ANY_SAMPLES_PASSED:
295 case GL_ANY_SAMPLES_PASSED_CONSERVATIVE:
296 case GL_SAMPLES_PASSED_ARB:
297 /* For occlusion queries, we delay taking an initial sample until the
298 * first drawing occurs in this batch. See the reasoning in the comments
299 * for brw_emit_query_begin() below.
300 *
301 * Since we're starting a new query, we need to be sure to throw away
302 * any previous occlusion query results.
303 */
304 brw_bo_unreference(query->bo);
305 query->bo = NULL;
306 query->last_index = -1;
307
308 brw->query.obj = query;
309
310 /* Depth statistics on Gen4 require strange workarounds, so we try to
311 * avoid them when necessary. They're required for occlusion queries,
312 * so turn them on now.
313 */
314 brw->stats_wm++;
315 brw->ctx.NewDriverState |= BRW_NEW_STATS_WM;
316 break;
317
318 default:
319 unreachable("Unrecognized query target in brw_begin_query()");
320 }
321 }
322
323 /**
324 * Gen4-5 driver hook for glEndQuery().
325 *
326 * Emits GPU commands to record a final query value, ending any data capturing.
327 * However, the final result isn't necessarily available until the GPU processes
328 * those commands. brw_queryobj_get_results() processes the captured data to
329 * produce the final result.
330 */
331 static void
brw_end_query(struct gl_context * ctx,struct gl_query_object * q)332 brw_end_query(struct gl_context *ctx, struct gl_query_object *q)
333 {
334 struct brw_context *brw = brw_context(ctx);
335 struct brw_query_object *query = (struct brw_query_object *)q;
336 const struct gen_device_info *devinfo = &brw->screen->devinfo;
337
338 assert(devinfo->gen < 6);
339
340 switch (query->Base.Target) {
341 case GL_TIME_ELAPSED_EXT:
342 /* Write the final timestamp. */
343 brw_write_timestamp(brw, query->bo, 1);
344 break;
345
346 case GL_ANY_SAMPLES_PASSED:
347 case GL_ANY_SAMPLES_PASSED_CONSERVATIVE:
348 case GL_SAMPLES_PASSED_ARB:
349
350 /* No query->bo means that EndQuery was called after BeginQuery with no
351 * intervening drawing. Rather than doing nothing at all here in this
352 * case, we emit the query_begin and query_end state to the
353 * hardware. This is to guarantee that waiting on the result of this
354 * empty state will cause all previous queries to complete at all, as
355 * required by the specification:
356 *
357 * It must always be true that if any query object
358 * returns a result available of TRUE, all queries of the
359 * same type issued prior to that query must also return
360 * TRUE. [Open GL 4.3 (Core Profile) Section 4.2.1]
361 */
362 if (!query->bo) {
363 brw_emit_query_begin(brw);
364 }
365
366 assert(query->bo);
367
368 brw_emit_query_end(brw);
369
370 brw->query.obj = NULL;
371
372 brw->stats_wm--;
373 brw->ctx.NewDriverState |= BRW_NEW_STATS_WM;
374 break;
375
376 default:
377 unreachable("Unrecognized query target in brw_end_query()");
378 }
379 }
380
381 /**
382 * The Gen4-5 WaitQuery() driver hook.
383 *
384 * Wait for a query result to become available and return it. This is the
385 * backing for glGetQueryObjectiv() with the GL_QUERY_RESULT pname.
386 */
brw_wait_query(struct gl_context * ctx,struct gl_query_object * q)387 static void brw_wait_query(struct gl_context *ctx, struct gl_query_object *q)
388 {
389 struct brw_query_object *query = (struct brw_query_object *)q;
390 const struct gen_device_info *devinfo = &brw_context(ctx)->screen->devinfo;
391
392 assert(devinfo->gen < 6);
393
394 brw_queryobj_get_results(ctx, query);
395 query->Base.Ready = true;
396 }
397
398 /**
399 * The Gen4-5 CheckQuery() driver hook.
400 *
401 * Checks whether a query result is ready yet. If not, flushes.
402 * This is the backing for glGetQueryObjectiv()'s QUERY_RESULT_AVAILABLE pname.
403 */
brw_check_query(struct gl_context * ctx,struct gl_query_object * q)404 static void brw_check_query(struct gl_context *ctx, struct gl_query_object *q)
405 {
406 struct brw_context *brw = brw_context(ctx);
407 struct brw_query_object *query = (struct brw_query_object *)q;
408 const struct gen_device_info *devinfo = &brw->screen->devinfo;
409
410 assert(devinfo->gen < 6);
411
412 /* From the GL_ARB_occlusion_query spec:
413 *
414 * "Instead of allowing for an infinite loop, performing a
415 * QUERY_RESULT_AVAILABLE_ARB will perform a flush if the result is
416 * not ready yet on the first time it is queried. This ensures that
417 * the async query will return true in finite time.
418 */
419 if (query->bo && brw_batch_references(&brw->batch, query->bo))
420 intel_batchbuffer_flush(brw);
421
422 if (query->bo == NULL || !brw_bo_busy(query->bo)) {
423 brw_queryobj_get_results(ctx, query);
424 query->Base.Ready = true;
425 }
426 }
427
428 /**
429 * Ensure there query's BO has enough space to store a new pair of values.
430 *
431 * If not, gather the existing BO's results and create a new buffer of the
432 * same size.
433 */
434 static void
ensure_bo_has_space(struct gl_context * ctx,struct brw_query_object * query)435 ensure_bo_has_space(struct gl_context *ctx, struct brw_query_object *query)
436 {
437 struct brw_context *brw = brw_context(ctx);
438 const struct gen_device_info *devinfo = &brw->screen->devinfo;
439
440 assert(devinfo->gen < 6);
441
442 if (!query->bo || query->last_index * 2 + 1 >= 4096 / sizeof(uint64_t)) {
443
444 if (query->bo != NULL) {
445 /* The old query BO did not have enough space, so we allocated a new
446 * one. Gather the results so far (adding up the differences) and
447 * release the old BO.
448 */
449 brw_queryobj_get_results(ctx, query);
450 }
451
452 query->bo = brw_bo_alloc(brw->bufmgr, "query", 4096, 1);
453 query->last_index = 0;
454 }
455 }
456
457 /**
458 * Record the PS_DEPTH_COUNT value (for occlusion queries) just before
459 * primitive drawing.
460 *
461 * In a pre-hardware context world, the single PS_DEPTH_COUNT register is
462 * shared among all applications using the GPU. However, our query value
463 * needs to only include fragments generated by our application/GL context.
464 *
465 * To accommodate this, we record PS_DEPTH_COUNT at the start and end of
466 * each batchbuffer (technically, the first primitive drawn and flush time).
467 * Subtracting each pair of values calculates the change in PS_DEPTH_COUNT
468 * caused by a batchbuffer. Since there is no preemption inside batches,
469 * this is guaranteed to only measure the effects of our current application.
470 *
471 * Adding each of these differences (in case drawing is done over many batches)
472 * produces the final expected value.
473 *
474 * In a world with hardware contexts, PS_DEPTH_COUNT is saved and restored
475 * as part of the context state, so this is unnecessary, and skipped.
476 */
477 void
brw_emit_query_begin(struct brw_context * brw)478 brw_emit_query_begin(struct brw_context *brw)
479 {
480 struct gl_context *ctx = &brw->ctx;
481 struct brw_query_object *query = brw->query.obj;
482
483 /* Skip if we're not doing any queries, or we've already recorded the
484 * initial query value for this batchbuffer.
485 */
486 if (!query || brw->query.begin_emitted)
487 return;
488
489 ensure_bo_has_space(ctx, query);
490
491 brw_write_depth_count(brw, query->bo, query->last_index * 2);
492
493 brw->query.begin_emitted = true;
494 }
495
496 /**
497 * Called at batchbuffer flush to get an ending PS_DEPTH_COUNT
498 * (for non-hardware context platforms).
499 *
500 * See the explanation in brw_emit_query_begin().
501 */
502 void
brw_emit_query_end(struct brw_context * brw)503 brw_emit_query_end(struct brw_context *brw)
504 {
505 struct brw_query_object *query = brw->query.obj;
506
507 if (!brw->query.begin_emitted)
508 return;
509
510 brw_write_depth_count(brw, query->bo, query->last_index * 2 + 1);
511
512 brw->query.begin_emitted = false;
513 query->last_index++;
514 }
515
516 /**
517 * Driver hook for glQueryCounter().
518 *
519 * This handles GL_TIMESTAMP queries, which perform a pipelined read of the
520 * current GPU time. This is unlike GL_TIME_ELAPSED, which measures the
521 * time while the query is active.
522 */
523 void
brw_query_counter(struct gl_context * ctx,struct gl_query_object * q)524 brw_query_counter(struct gl_context *ctx, struct gl_query_object *q)
525 {
526 struct brw_context *brw = brw_context(ctx);
527 struct brw_query_object *query = (struct brw_query_object *) q;
528
529 assert(q->Target == GL_TIMESTAMP);
530
531 brw_bo_unreference(query->bo);
532 query->bo = brw_bo_alloc(brw->bufmgr, "timestamp query", 4096, 4096);
533 brw_write_timestamp(brw, query->bo, 0);
534
535 query->flushed = false;
536 }
537
538 /**
539 * Read the TIMESTAMP register immediately (in a non-pipelined fashion).
540 *
541 * This is used to implement the GetTimestamp() driver hook.
542 */
543 static uint64_t
brw_get_timestamp(struct gl_context * ctx)544 brw_get_timestamp(struct gl_context *ctx)
545 {
546 struct brw_context *brw = brw_context(ctx);
547 uint64_t result = 0;
548
549 switch (brw->screen->hw_has_timestamp) {
550 case 3: /* New kernel, always full 36bit accuracy */
551 brw_reg_read(brw->bufmgr, TIMESTAMP | 1, &result);
552 break;
553 case 2: /* 64bit kernel, result is left-shifted by 32bits, losing 4bits */
554 brw_reg_read(brw->bufmgr, TIMESTAMP, &result);
555 result = result >> 32;
556 break;
557 case 1: /* 32bit kernel, result is 36bit wide but may be inaccurate! */
558 brw_reg_read(brw->bufmgr, TIMESTAMP, &result);
559 break;
560 }
561
562 /* Scale to nanosecond units */
563 result = brw_timebase_scale(brw, result);
564
565 /* Ensure the scaled timestamp overflows according to
566 * GL_QUERY_COUNTER_BITS. Technically this isn't required if
567 * querying GL_TIMESTAMP via glGetInteger but it seems best to keep
568 * QueryObject and GetInteger timestamps consistent.
569 */
570 result &= (1ull << ctx->Const.QueryCounterBits.Timestamp) - 1;
571 return result;
572 }
573
574 /**
575 * Is this type of query written by PIPE_CONTROL?
576 */
577 bool
brw_is_query_pipelined(struct brw_query_object * query)578 brw_is_query_pipelined(struct brw_query_object *query)
579 {
580 switch (query->Base.Target) {
581 case GL_TIMESTAMP:
582 case GL_TIME_ELAPSED:
583 case GL_ANY_SAMPLES_PASSED:
584 case GL_ANY_SAMPLES_PASSED_CONSERVATIVE:
585 case GL_SAMPLES_PASSED_ARB:
586 return true;
587
588 case GL_PRIMITIVES_GENERATED:
589 case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
590 case GL_TRANSFORM_FEEDBACK_STREAM_OVERFLOW_ARB:
591 case GL_TRANSFORM_FEEDBACK_OVERFLOW_ARB:
592 case GL_VERTICES_SUBMITTED_ARB:
593 case GL_PRIMITIVES_SUBMITTED_ARB:
594 case GL_VERTEX_SHADER_INVOCATIONS_ARB:
595 case GL_GEOMETRY_SHADER_INVOCATIONS:
596 case GL_GEOMETRY_SHADER_PRIMITIVES_EMITTED_ARB:
597 case GL_FRAGMENT_SHADER_INVOCATIONS_ARB:
598 case GL_CLIPPING_INPUT_PRIMITIVES_ARB:
599 case GL_CLIPPING_OUTPUT_PRIMITIVES_ARB:
600 case GL_COMPUTE_SHADER_INVOCATIONS_ARB:
601 case GL_TESS_CONTROL_SHADER_PATCHES_ARB:
602 case GL_TESS_EVALUATION_SHADER_INVOCATIONS_ARB:
603 return false;
604
605 default:
606 unreachable("Unrecognized query target in is_query_pipelined()");
607 }
608 }
609
610 /* Initialize query object functions used on all generations. */
brw_init_common_queryobj_functions(struct dd_function_table * functions)611 void brw_init_common_queryobj_functions(struct dd_function_table *functions)
612 {
613 functions->NewQueryObject = brw_new_query_object;
614 functions->DeleteQuery = brw_delete_query;
615 functions->GetTimestamp = brw_get_timestamp;
616 }
617
618 /* Initialize Gen4/5-specific query object functions. */
gen4_init_queryobj_functions(struct dd_function_table * functions)619 void gen4_init_queryobj_functions(struct dd_function_table *functions)
620 {
621 functions->BeginQuery = brw_begin_query;
622 functions->EndQuery = brw_end_query;
623 functions->CheckQuery = brw_check_query;
624 functions->WaitQuery = brw_wait_query;
625 functions->QueryCounter = brw_query_counter;
626 }
627