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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