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_memory.h"
30
31 #include "etnaviv_context.h"
32 #include "etnaviv_debug.h"
33 #include "etnaviv_emit.h"
34 #include "etnaviv_query_acc.h"
35
36 struct etna_pm_query
37 {
38 struct etna_acc_query base;
39
40 struct etna_perfmon_signal *signal;
41 unsigned sequence;
42 };
43
44 static inline struct etna_pm_query *
etna_pm_query(struct etna_acc_query * aq)45 etna_pm_query(struct etna_acc_query *aq)
46 {
47 return (struct etna_pm_query *)aq;
48 }
49
50 static inline void
pm_add_signal(struct etna_pm_query * pq,struct etna_perfmon * perfmon,const struct etna_perfmon_config * cfg)51 pm_add_signal(struct etna_pm_query *pq, struct etna_perfmon *perfmon,
52 const struct etna_perfmon_config *cfg)
53 {
54 struct etna_perfmon_signal *signal = etna_pm_query_signal(perfmon, cfg->source);
55
56 pq->signal = signal;
57 }
58
59 static void
pm_query(struct etna_context * ctx,struct etna_acc_query * aq,unsigned flags)60 pm_query(struct etna_context *ctx, struct etna_acc_query *aq, unsigned flags)
61 {
62 struct etna_cmd_stream *stream = ctx->stream;
63 struct etna_pm_query *pq = etna_pm_query(aq);
64 unsigned offset;
65 assert(flags);
66
67 if (aq->samples > 127) {
68 aq->samples = 127;
69 BUG("samples overflow perfmon");
70 }
71
72 /* offset 0 is reserved for seq number */
73 offset = 1 + aq->samples;
74
75 pq->sequence++;
76
77 /* skip seq number of 0 as the buffer got zeroed out */
78 pq->sequence = MAX2(pq->sequence, 1);
79
80 struct etna_perf p = {
81 .flags = flags,
82 .sequence = pq->sequence,
83 .bo = etna_resource(aq->prsc)->bo,
84 .signal = pq->signal,
85 .offset = offset
86 };
87
88 etna_cmd_stream_perf(stream, &p);
89 resource_written(ctx, aq->prsc);
90
91 /* force a flush in !wait case in etna_acc_get_query_result(..) */
92 aq->no_wait_cnt = 10;
93 }
94
95 static bool
perfmon_supports(unsigned query_type)96 perfmon_supports(unsigned query_type)
97 {
98 return !!etna_pm_query_config(query_type);
99 }
100
101 static struct etna_acc_query *
perfmon_allocate(struct etna_context * ctx,unsigned query_type)102 perfmon_allocate(struct etna_context *ctx, unsigned query_type)
103 {
104 struct etna_pm_query *pq;
105 const struct etna_perfmon_config *cfg;
106
107 cfg = etna_pm_query_config(query_type);
108 if (!cfg)
109 return false;
110
111 if (!etna_pm_cfg_supported(ctx->screen->perfmon, cfg))
112 return false;
113
114 pq = CALLOC_STRUCT(etna_pm_query);
115 if (!pq)
116 return NULL;
117
118 pm_add_signal(pq, ctx->screen->perfmon, cfg);
119
120 return &pq->base;
121 }
122
123 static void
perfmon_resume(struct etna_acc_query * aq,struct etna_context * ctx)124 perfmon_resume(struct etna_acc_query *aq, struct etna_context *ctx)
125 {
126 pm_query(ctx, aq, ETNA_PM_PROCESS_PRE);
127 }
128
129 static void
perfmon_suspend(struct etna_acc_query * aq,struct etna_context * ctx)130 perfmon_suspend(struct etna_acc_query *aq, struct etna_context *ctx)
131 {
132 pm_query(ctx, aq, ETNA_PM_PROCESS_POST);
133 }
134
135 static bool
perfmon_result(struct etna_acc_query * aq,void * buf,union pipe_query_result * result)136 perfmon_result(struct etna_acc_query *aq, void *buf,
137 union pipe_query_result *result)
138 {
139 const struct etna_pm_query *pq = etna_pm_query(aq);
140 uint32_t sum = 0;
141 uint32_t *ptr = (uint32_t *)buf;
142
143 /* check seq number */
144 if (pq->sequence > ptr[0])
145 return false;
146
147 /* jump over seq number */
148 ptr++;
149
150 assert(aq->samples % 2 == 0);
151
152 /* each pair has a start and end value */
153 for (unsigned i = 0; i < aq->samples; i += 2)
154 sum += *(ptr + i + 1) - *(ptr + i);
155
156 result->u32 = sum;
157
158 return true;
159 }
160
161 const struct etna_acc_sample_provider perfmon_provider = {
162 .supports = perfmon_supports,
163 .allocate = perfmon_allocate,
164 .resume = perfmon_resume,
165 .suspend = perfmon_suspend,
166 .result = perfmon_result,
167 };
168