1 /*
2 * Copyright (c) 2017 Etnaviv Project
3 * Copyright (C) 2017 Zodiac Inflight Innovations
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sub license,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial portions
14 * of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Rob Clark <robclark@freedesktop.org>
26 * Christian Gmeiner <christian.gmeiner@gmail.com>
27 */
28
29 #include "util/u_inlines.h"
30 #include "util/u_memory.h"
31
32 #include "etnaviv_context.h"
33 #include "etnaviv_debug.h"
34 #include "etnaviv_emit.h"
35 #include "etnaviv_query_acc.h"
36 #include "etnaviv_screen.h"
37
38
39 extern const struct etna_acc_sample_provider occlusion_provider;
40 extern const struct etna_acc_sample_provider perfmon_provider;
41
42 static const struct etna_acc_sample_provider *acc_sample_provider[] =
43 {
44 &occlusion_provider,
45 &perfmon_provider,
46 };
47
48 static void
etna_acc_destroy_query(struct etna_context * ctx,struct etna_query * q)49 etna_acc_destroy_query(struct etna_context *ctx, struct etna_query *q)
50 {
51 struct etna_acc_query *aq = etna_acc_query(q);
52
53 pipe_resource_reference(&aq->prsc, NULL);
54 list_del(&aq->node);
55
56 FREE(aq);
57 }
58
59 static void
realloc_query_bo(struct etna_context * ctx,struct etna_acc_query * aq)60 realloc_query_bo(struct etna_context *ctx, struct etna_acc_query *aq)
61 {
62 struct etna_resource *rsc;
63 void *map;
64
65 pipe_resource_reference(&aq->prsc, NULL);
66
67 /* allocate resource with space for 64 * 64bit values */
68 aq->prsc = pipe_buffer_create(&ctx->screen->base, PIPE_BIND_QUERY_BUFFER,
69 0, 0x1000);
70
71 /* don't assume the buffer is zero-initialized */
72 rsc = etna_resource(aq->prsc);
73
74 etna_bo_cpu_prep(rsc->bo, DRM_ETNA_PREP_WRITE);
75
76 map = etna_bo_map(rsc->bo);
77 memset(map, 0, 0x1000);
78 etna_bo_cpu_fini(rsc->bo);
79 }
80
81 static void
etna_acc_begin_query(struct etna_context * ctx,struct etna_query * q)82 etna_acc_begin_query(struct etna_context *ctx, struct etna_query *q)
83 {
84 struct etna_acc_query *aq = etna_acc_query(q);
85 const struct etna_acc_sample_provider *p = aq->provider;
86
87 /* ->begin_query() discards previous results, so realloc bo */
88 realloc_query_bo(ctx, aq);
89
90 p->resume(aq, ctx);
91 aq->samples++;
92
93 /* add to active list */
94 assert(list_is_empty(&aq->node));
95 list_addtail(&aq->node, &ctx->active_acc_queries);
96 }
97
98 static void
etna_acc_end_query(struct etna_context * ctx,struct etna_query * q)99 etna_acc_end_query(struct etna_context *ctx, struct etna_query *q)
100 {
101 struct etna_acc_query *aq = etna_acc_query(q);
102 const struct etna_acc_sample_provider *p = aq->provider;
103
104 p->suspend(aq, ctx);
105 aq->samples++;
106
107 /* remove from active list */
108 list_delinit(&aq->node);
109 }
110
111 static bool
etna_acc_get_query_result(struct etna_context * ctx,struct etna_query * q,bool wait,union pipe_query_result * result)112 etna_acc_get_query_result(struct etna_context *ctx, struct etna_query *q,
113 bool wait, union pipe_query_result *result)
114 {
115 struct etna_acc_query *aq = etna_acc_query(q);
116 struct etna_resource *rsc = etna_resource(aq->prsc);
117 const struct etna_acc_sample_provider *p = aq->provider;
118
119 assert(list_is_empty(&aq->node));
120
121 if (rsc->status & ETNA_PENDING_WRITE) {
122 if (!wait) {
123 /* piglit spec@arb_occlusion_query@occlusion_query_conform
124 * test, and silly apps perhaps, get stuck in a loop trying
125 * to get query result forever with wait==false.. we don't
126 * wait to flush unnecessarily but we also don't want to
127 * spin forever.
128 */
129 if (aq->no_wait_cnt++ > 5) {
130 ctx->base.flush(&ctx->base, NULL, 0);
131 aq->no_wait_cnt = 0;
132 }
133
134 return false;
135 } else {
136 /* flush that GPU executes all query related actions */
137 ctx->base.flush(&ctx->base, NULL, 0);
138 }
139 }
140
141 /* get the result */
142 int ret = etna_bo_cpu_prep(rsc->bo, DRM_ETNA_PREP_READ);
143 if (ret)
144 return false;
145
146 void *ptr = etna_bo_map(rsc->bo);
147 bool success = p->result(aq, ptr, result);
148
149 if (success)
150 aq->samples = 0;
151
152 etna_bo_cpu_fini(rsc->bo);
153
154 return success;
155 }
156
157 static const struct etna_query_funcs acc_query_funcs = {
158 .destroy_query = etna_acc_destroy_query,
159 .begin_query = etna_acc_begin_query,
160 .end_query = etna_acc_end_query,
161 .get_query_result = etna_acc_get_query_result,
162 };
163
164 struct etna_query *
etna_acc_create_query(struct etna_context * ctx,unsigned query_type)165 etna_acc_create_query(struct etna_context *ctx, unsigned query_type)
166 {
167 const struct etna_acc_sample_provider *p = NULL;
168 struct etna_acc_query *aq;
169 struct etna_query *q;
170
171 /* find a sample provide for the requested query type */
172 for (unsigned i = 0; i < ARRAY_SIZE(acc_sample_provider); i++) {
173 p = acc_sample_provider[i];
174
175 if (p->supports(query_type))
176 break;
177 else
178 p = NULL;
179 }
180
181 if (!p)
182 return NULL;
183
184 aq = p->allocate(ctx, query_type);
185 if (!aq)
186 return NULL;
187
188 aq->provider = p;
189
190 list_inithead(&aq->node);
191
192 q = &aq->base;
193 q->funcs = &acc_query_funcs;
194 q->type = query_type;
195
196 return q;
197 }
198