1f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/*
2f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Copyright © 2008 Intel Corporation
3f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org *
4f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Permission is hereby granted, free of charge, to any person obtaining a
5f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * copy of this software and associated documentation files (the "Software"),
6f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * to deal in the Software without restriction, including without limitation
7f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * and/or sell copies of the Software, and to permit persons to whom the
9f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Software is furnished to do so, subject to the following conditions:
10f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org *
11f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * The above copyright notice and this permission notice (including the next
12f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * paragraph) shall be included in all copies or substantial portions of the
13f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Software.
14f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org *
15f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * IN THE SOFTWARE.
22f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org *
23f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Authors:
24f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org *    Eric Anholt <eric@anholt.net>
25f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org *
26f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */
27f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
28f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** @file brw_queryobj.c
29f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org *
30f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Support for query objects (GL_ARB_occlusion_query, GL_ARB_timer_query,
31f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * GL_EXT_transform_feedback, and friends).
32f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org *
33f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * The hardware provides a PIPE_CONTROL command that can report the number of
34f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * fragments that passed the depth test, or the hardware timer.  They are
35f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * appropriately synced with the stage of the pipeline for our extensions'
36f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * needs.
37f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org *
38f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * To avoid getting samples from another context's rendering in our results,
39f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * we capture the counts at the start and end of every batchbuffer while the
40f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * query is active, and sum up the differences.  (We should do so for
41f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * GL_TIME_ELAPSED as well, but don't).
42f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */
43f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "main/imports.h"
44f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
45f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "brw_context.h"
46f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "brw_defines.h"
47f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "brw_state.h"
48f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "intel_batchbuffer.h"
49f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "intel_reg.h"
50f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
51f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic void
52f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgwrite_timestamp(struct intel_context *intel, drm_intel_bo *query_bo, int idx)
53f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{
54f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   if (intel->gen >= 6) {
55f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      /* Emit workaround flushes: */
56f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      if (intel->gen == 6) {
57f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org         /* The timestamp write below is a non-zero post-sync op, which on
58f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          * Gen6 necessitates a CS stall.  CS stalls need stall at scoreboard
59f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          * set.  See the comments for intel_emit_post_sync_nonzero_flush().
60f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          */
61f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org         BEGIN_BATCH(4);
62f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org         OUT_BATCH(_3DSTATE_PIPE_CONTROL | (4 - 2));
63f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org         OUT_BATCH(PIPE_CONTROL_CS_STALL | PIPE_CONTROL_STALL_AT_SCOREBOARD);
64f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org         OUT_BATCH(0);
65f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org         OUT_BATCH(0);
66f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org         ADVANCE_BATCH();
67f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      }
68f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
69f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      BEGIN_BATCH(5);
70f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_BATCH(_3DSTATE_PIPE_CONTROL | (5 - 2));
71f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_BATCH(PIPE_CONTROL_WRITE_TIMESTAMP);
72f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_RELOC(query_bo,
73f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org                I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
74f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org                PIPE_CONTROL_GLOBAL_GTT_WRITE |
75f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org                idx * sizeof(uint64_t));
76f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_BATCH(0);
77f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_BATCH(0);
78f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      ADVANCE_BATCH();
79f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   } else {
80f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      BEGIN_BATCH(4);
81f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_BATCH(_3DSTATE_PIPE_CONTROL | (4 - 2) |
82f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org                PIPE_CONTROL_WRITE_TIMESTAMP);
83f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_RELOC(query_bo,
84f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org                I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
85f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org                PIPE_CONTROL_GLOBAL_GTT_WRITE |
86f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org                idx * sizeof(uint64_t));
87f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_BATCH(0);
88f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_BATCH(0);
89f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      ADVANCE_BATCH();
90f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   }
91f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}
92f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
93f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic void
94f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgwrite_depth_count(struct intel_context *intel, drm_intel_bo *query_bo, int idx)
95f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{
96f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   if (intel->gen >= 6) {
97f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      /* Emit Sandybridge workaround flush: */
98f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      if (intel->gen == 6)
99f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org         intel_emit_post_sync_nonzero_flush(intel);
100f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
101f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      BEGIN_BATCH(5);
102f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_BATCH(_3DSTATE_PIPE_CONTROL | (5 - 2));
103f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_BATCH(PIPE_CONTROL_DEPTH_STALL |
104f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org                PIPE_CONTROL_WRITE_DEPTH_COUNT);
105f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_RELOC(query_bo,
106f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org                I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
107f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org                PIPE_CONTROL_GLOBAL_GTT_WRITE |
108f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org                (idx * sizeof(uint64_t)));
109f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_BATCH(0);
110f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_BATCH(0);
111f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      ADVANCE_BATCH();
112f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   } else {
113f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      BEGIN_BATCH(4);
114f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_BATCH(_3DSTATE_PIPE_CONTROL | (4 - 2) |
115f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org                PIPE_CONTROL_DEPTH_STALL |
116f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org                PIPE_CONTROL_WRITE_DEPTH_COUNT);
117f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      /* This object could be mapped cacheable, but we don't have an exposed
118f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       * mechanism to support that.  Since it's going uncached, tell GEM that
119f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       * we're writing to it.  The usual clflush should be all that's required
120f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       * to pick up the results.
121f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       */
122f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_RELOC(query_bo,
123f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org                I915_GEM_DOMAIN_INSTRUCTION, I915_GEM_DOMAIN_INSTRUCTION,
124f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org                PIPE_CONTROL_GLOBAL_GTT_WRITE |
125f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org                (idx * sizeof(uint64_t)));
126f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_BATCH(0);
127f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      OUT_BATCH(0);
128f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      ADVANCE_BATCH();
129f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   }
130f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}
131f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
132f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** Waits on the query object's BO and totals the results for this query */
133f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic void
134f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgbrw_queryobj_get_results(struct gl_context *ctx,
135f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org			 struct brw_query_object *query)
136f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{
137f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct intel_context *intel = intel_context(ctx);
138f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
139f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   int i;
140f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   uint64_t *results;
141f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
142f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   if (query->bo == NULL)
143f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      return;
144f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
145f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   if (unlikely(INTEL_DEBUG & DEBUG_PERF)) {
146f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      if (drm_intel_bo_busy(query->bo)) {
147f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org         perf_debug("Stalling on the GPU waiting for a query object.\n");
148f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      }
149f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   }
150f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
151f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   drm_intel_bo_map(query->bo, false);
152f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   results = query->bo->virtual;
153f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   switch (query->Base.Target) {
154f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_TIME_ELAPSED_EXT:
155f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      if (intel->gen >= 6)
156f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org	 query->Base.Result += 80 * (results[1] - results[0]);
157f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      else
158f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org	 query->Base.Result += 1000 * ((results[1] >> 32) - (results[0] >> 32));
159f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      break;
160f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
161f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_TIMESTAMP:
162f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      if (intel->gen >= 6) {
163f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org         /* Our timer is a clock that increments every 80ns (regardless of
164f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          * other clock scaling in the system).  The timestamp register we can
165f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          * read for glGetTimestamp() masks out the top 32 bits, so we do that
166f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          * here too to let the two counters be compared against each other.
167f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          *
168f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          * If we just multiplied that 32 bits of data by 80, it would roll
169f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          * over at a non-power-of-two, so an application couldn't use
170f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          * GL_QUERY_COUNTER_BITS to handle rollover correctly.  Instead, we
171f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          * report 36 bits and truncate at that (rolling over 5 times as often
172f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          * as the HW counter), and when the 32-bit counter rolls over, it
173f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          * happens to also be at a rollover in the reported value from near
174f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          * (1<<36) to 0.
175f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          *
176f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          * The low 32 bits rolls over in ~343 seconds.  Our 36-bit result
177f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          * rolls over every ~69 seconds.
178f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org          */
179f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org	 query->Base.Result = 80 * (results[1] & 0xffffffff);
180f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org         query->Base.Result &= (1ull << 36) - 1;
181f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      } else {
182f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org	 query->Base.Result = 1000 * (results[1] >> 32);
183f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      }
184f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
185f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      break;
186f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
187f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_SAMPLES_PASSED_ARB:
188f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      /* Map and count the pixels from the current query BO */
189f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      for (i = query->first_index; i <= query->last_index; i++) {
190f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org	 query->Base.Result += results[i * 2 + 1] - results[i * 2];
191f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      }
192f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      break;
193f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
194f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_ANY_SAMPLES_PASSED:
195f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      /* Set true if any of the sub-queries passed. */
196f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      for (i = query->first_index; i <= query->last_index; i++) {
197f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org	 if (results[i * 2 + 1] != results[i * 2]) {
198f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org            query->Base.Result = GL_TRUE;
199f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org            break;
200f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org         }
201f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      }
202f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      break;
203f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
204f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_PRIMITIVES_GENERATED:
205f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
206f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      /* We don't actually query the hardware for this value, so query->bo
207f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       * should always be NULL and execution should never reach here.
208f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       */
209f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      assert(!"Unreachable");
210f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      break;
211f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
212f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   default:
213f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      assert(!"Unrecognized query target in brw_queryobj_get_results()");
214f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      break;
215f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   }
216f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   drm_intel_bo_unmap(query->bo);
217f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
218f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   drm_intel_bo_unreference(query->bo);
219f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   query->bo = NULL;
220f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}
221f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
222f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic struct gl_query_object *
223f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgbrw_new_query_object(struct gl_context *ctx, GLuint id)
224f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{
225f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct brw_query_object *query;
226f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
227f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   query = calloc(1, sizeof(struct brw_query_object));
228f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
229f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   query->Base.Id = id;
230f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   query->Base.Result = 0;
231f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   query->Base.Active = false;
232f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   query->Base.Ready = true;
233f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
234f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   return &query->Base;
235f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}
236f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
237f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic void
238f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgbrw_delete_query(struct gl_context *ctx, struct gl_query_object *q)
239f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{
240f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct brw_query_object *query = (struct brw_query_object *)q;
241f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
242f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   drm_intel_bo_unreference(query->bo);
243f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   free(query);
244f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}
245f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
246f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic void
247f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgbrw_begin_query(struct gl_context *ctx, struct gl_query_object *q)
248f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{
249f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct brw_context *brw = brw_context(ctx);
250f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct intel_context *intel = intel_context(ctx);
251f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct brw_query_object *query = (struct brw_query_object *)q;
252f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
253f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   switch (query->Base.Target) {
254f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_TIME_ELAPSED_EXT:
255f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      drm_intel_bo_unreference(query->bo);
256f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      query->bo = drm_intel_bo_alloc(intel->bufmgr, "timer query", 4096, 4096);
257f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      write_timestamp(intel, query->bo, 0);
258f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      break;
259f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
260f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_ANY_SAMPLES_PASSED:
261f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_SAMPLES_PASSED_ARB:
262f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      /* Reset our driver's tracking of query state. */
263f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      drm_intel_bo_unreference(query->bo);
264f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      query->bo = NULL;
265f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      query->first_index = -1;
266f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      query->last_index = -1;
267f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
268f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      brw->query.obj = query;
269f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      intel->stats_wm++;
270f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      break;
271f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
272f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_PRIMITIVES_GENERATED:
273f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      /* We don't actually query the hardware for this value; we keep track of
274f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       * it a software counter.  So just reset the counter.
275f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       */
276f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      brw->sol.primitives_generated = 0;
277f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      brw->sol.counting_primitives_generated = true;
278f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      break;
279f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
280f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
281f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      /* We don't actually query the hardware for this value; we keep track of
282f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       * it a software counter.  So just reset the counter.
283f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       */
284f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      brw->sol.primitives_written = 0;
285f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      brw->sol.counting_primitives_written = true;
286f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      break;
287f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
288f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   default:
289f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      assert(!"Unrecognized query target in brw_begin_query()");
290f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      break;
291f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   }
292f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}
293f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
294f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/**
295f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Begin the ARB_occlusion_query query on a query object.
296f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */
297f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic void
298f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgbrw_end_query(struct gl_context *ctx, struct gl_query_object *q)
299f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{
300f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct brw_context *brw = brw_context(ctx);
301f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct intel_context *intel = intel_context(ctx);
302f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct brw_query_object *query = (struct brw_query_object *)q;
303f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
304f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   switch (query->Base.Target) {
305f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_TIMESTAMP:
306f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      drm_intel_bo_unreference(query->bo);
307f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      query->bo = drm_intel_bo_alloc(intel->bufmgr, "timer query",
308f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org				     4096, 4096);
309f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      /* FALLTHROUGH */
310f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
311f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_TIME_ELAPSED_EXT:
312f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      write_timestamp(intel, query->bo, 1);
313f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      intel_batchbuffer_flush(intel);
314f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      break;
315f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
316f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_ANY_SAMPLES_PASSED:
317f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_SAMPLES_PASSED_ARB:
318f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      /* Flush the batchbuffer in case it has writes to our query BO.
319f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       * Have later queries write to a new query BO so that further rendering
320f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       * doesn't delay the collection of our results.
321f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       */
322f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      if (query->bo) {
323f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org	 brw_emit_query_end(brw);
324f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org	 intel_batchbuffer_flush(intel);
325f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
326f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org	 drm_intel_bo_unreference(brw->query.bo);
327f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org	 brw->query.bo = NULL;
328f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      }
329f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
330f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      brw->query.obj = NULL;
331f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
332f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      intel->stats_wm--;
333f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      break;
334f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
335f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_PRIMITIVES_GENERATED:
336f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      /* We don't actually query the hardware for this value; we keep track of
337f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       * it in a software counter.  So just read the counter and store it in
338f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       * the query object.
339f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       */
340f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      query->Base.Result = brw->sol.primitives_generated;
341f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      brw->sol.counting_primitives_generated = false;
342f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
343f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      /* And set brw->query.obj to NULL so that this query won't try to wait
344f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       * for any rendering to complete.
345f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       */
346f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      query->bo = NULL;
347f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      break;
348f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
349f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   case GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN:
350f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      /* We don't actually query the hardware for this value; we keep track of
351f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       * it in a software counter.  So just read the counter and store it in
352f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       * the query object.
353f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       */
354f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      query->Base.Result = brw->sol.primitives_written;
355f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      brw->sol.counting_primitives_written = false;
356f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
357f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      /* And set brw->query.obj to NULL so that this query won't try to wait
358f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       * for any rendering to complete.
359f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       */
360f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      query->bo = NULL;
361f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      break;
362f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
363f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   default:
364f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      assert(!"Unrecognized query target in brw_end_query()");
365f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      break;
366f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   }
367f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}
368f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
369f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic void brw_wait_query(struct gl_context *ctx, struct gl_query_object *q)
370f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{
371f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct brw_query_object *query = (struct brw_query_object *)q;
372f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
373f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   brw_queryobj_get_results(ctx, query);
374f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   query->Base.Ready = true;
375f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}
376f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
377f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic void brw_check_query(struct gl_context *ctx, struct gl_query_object *q)
378f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{
379f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct brw_query_object *query = (struct brw_query_object *)q;
380f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
381f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   if (query->bo == NULL || !drm_intel_bo_busy(query->bo)) {
382f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      brw_queryobj_get_results(ctx, query);
383f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      query->Base.Ready = true;
384f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   }
385f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}
386f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
387f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** Called to set up the query BO and account for its aperture space */
388f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgvoid
389f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgbrw_prepare_query_begin(struct brw_context *brw)
390f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{
391f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct intel_context *intel = &brw->intel;
392f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
393f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   /* Skip if we're not doing any queries. */
394f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   if (!brw->query.obj)
395f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      return;
396f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
397f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   /* Get a new query BO if we're going to need it. */
398f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   if (brw->query.bo == NULL ||
399f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org       brw->query.index * 2 + 1 >= 4096 / sizeof(uint64_t)) {
400f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      drm_intel_bo_unreference(brw->query.bo);
401f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      brw->query.bo = NULL;
402f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
403f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      brw->query.bo = drm_intel_bo_alloc(intel->bufmgr, "query", 4096, 1);
404f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
405f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      /* clear target buffer */
406f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      drm_intel_bo_map(brw->query.bo, true);
407f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      memset((char *)brw->query.bo->virtual, 0, 4096);
408f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      drm_intel_bo_unmap(brw->query.bo);
409f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
410f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      brw->query.index = 0;
411f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   }
412f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}
413f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
414f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** Called just before primitive drawing to get a beginning PS_DEPTH_COUNT. */
415f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgvoid
416f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgbrw_emit_query_begin(struct brw_context *brw)
417f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{
418f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct intel_context *intel = &brw->intel;
419f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct gl_context *ctx = &intel->ctx;
420f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct brw_query_object *query = brw->query.obj;
421f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
422f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   /* Skip if we're not doing any queries, or we've emitted the start. */
423f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   if (!query || brw->query.active)
424f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      return;
425f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
426f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   write_depth_count(intel, brw->query.bo, brw->query.index * 2);
427f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
428f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   if (query->bo != brw->query.bo) {
429f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      if (query->bo != NULL)
430f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org	 brw_queryobj_get_results(ctx, query);
431f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      drm_intel_bo_reference(brw->query.bo);
432f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      query->bo = brw->query.bo;
433f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      query->first_index = brw->query.index;
434f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   }
435f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   query->last_index = brw->query.index;
436f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   brw->query.active = true;
437f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}
438f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
439f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/** Called at batchbuffer flush to get an ending PS_DEPTH_COUNT */
440f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgvoid
441f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgbrw_emit_query_end(struct brw_context *brw)
442f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{
443f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct intel_context *intel = &brw->intel;
444f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
445f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   if (!brw->query.active)
446f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org      return;
447f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
448f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   write_depth_count(intel, brw->query.bo, brw->query.index * 2 + 1);
449f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
450f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   brw->query.active = false;
451f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   brw->query.index++;
452f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}
453f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
454f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic uint64_t
455f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgbrw_get_timestamp(struct gl_context *ctx)
456f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{
457f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   struct intel_context *intel = intel_context(ctx);
458f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   uint64_t result = 0;
459f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
460f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   drm_intel_reg_read(intel->bufmgr, TIMESTAMP, &result);
461f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
462f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   /* See logic in brw_queryobj_get_results() */
463f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   result = result >> 32;
464f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   result *= 80;
465f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   result &= (1ull << 36) - 1;
466f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
467f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   return result;
468f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}
469f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org
470f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgvoid brw_init_queryobj_functions(struct dd_function_table *functions)
471f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{
472f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   functions->NewQueryObject = brw_new_query_object;
473f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   functions->DeleteQuery = brw_delete_query;
474f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   functions->BeginQuery = brw_begin_query;
475f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   functions->EndQuery = brw_end_query;
476f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   functions->CheckQuery = brw_check_query;
477f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   functions->WaitQuery = brw_wait_query;
478f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org   functions->GetTimestamp = brw_get_timestamp;
479f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}
480