1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
/*
* Copyright (C) 2014 Rob Clark <robclark@freedesktop.org>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Rob Clark <robclark@freedesktop.org>
*/
#ifndef FREEDRENO_QUERY_HW_H_
#define FREEDRENO_QUERY_HW_H_
#include "util/list.h"
#include "freedreno_query.h"
#include "freedreno_context.h"
/*
* HW Queries:
*
* See: https://github.com/freedreno/freedreno/wiki/Queries#hardware-queries
*
* Hardware queries will be specific to gpu generation, but they need
* some common infrastructure for triggering start/stop samples at
* various points (for example, to exclude mem2gmem/gmem2mem or clear)
* as well as per tile tracking.
*
* NOTE: in at least some cases hw writes sample values to memory addr
* specified in some register. So we don't really have the option to
* just sample the same counter multiple times for multiple different
* queries with the same query_type. So we cache per sample provider
* the most recent sample since the last draw. This way multiple
* sample periods for multiple queries can reference the same sample.
*
* fd_hw_sample_provider:
* - one per query type, registered/implemented by gpu generation
* specific code
* - can construct fd_hw_samples on demand
* - most recent sample (since last draw) cached so multiple
* different queries can ref the same sample
*
* fd_hw_sample:
* - abstracts one snapshot of counter value(s) across N tiles
* - backing object not allocated until submit time when number
* of samples and number of tiles is known
*
* fd_hw_sample_period:
* - consists of start and stop sample
* - a query accumulates a list of sample periods
* - the query result is the sum of the sample periods
*/
struct fd_hw_sample_provider {
unsigned query_type;
/* stages applicable to the query type: */
enum fd_render_stage active;
/* Optional hook for enabling a counter. Guaranteed to happen
* at least once before the first ->get_sample() in a batch.
*/
void (*enable)(struct fd_context *ctx, struct fd_ringbuffer *ring);
/* when a new sample is required, emit appropriate cmdstream
* and return a sample object:
*/
struct fd_hw_sample *(*get_sample)(struct fd_batch *batch,
struct fd_ringbuffer *ring);
/* accumulate the results from specified sample period: */
void (*accumulate_result)(struct fd_context *ctx,
const void *start, const void *end,
union pipe_query_result *result);
};
struct fd_hw_sample {
struct pipe_reference reference; /* keep this first */
/* offset and size of the sample are know at the time the
* sample is constructed.
*/
uint32_t size;
uint32_t offset;
/* backing object, offset/stride/etc are determined not when
* the sample is constructed, but when the batch is submitted.
* This way we can defer allocation until total # of requested
* samples, and total # of tiles, is known.
*/
struct pipe_resource *prsc;
uint32_t num_tiles;
uint32_t tile_stride;
};
struct fd_hw_sample_period;
struct fd_hw_query {
struct fd_query base;
const struct fd_hw_sample_provider *provider;
/* list of fd_hw_sample_periods: */
struct list_head periods;
/* if active and not paused, the current sample period (not
* yet added to current_periods):
*/
struct fd_hw_sample_period *period;
struct list_head list; /* list-node in batch->active_queries */
int no_wait_cnt; /* see fd_hw_get_query_result */
};
static inline struct fd_hw_query *
fd_hw_query(struct fd_query *q)
{
return (struct fd_hw_query *)q;
}
struct fd_query * fd_hw_create_query(struct fd_context *ctx, unsigned query_type);
/* helper for sample providers: */
struct fd_hw_sample * fd_hw_sample_init(struct fd_batch *batch, uint32_t size);
/* don't call directly, use fd_hw_sample_reference() */
void __fd_hw_sample_destroy(struct fd_context *ctx, struct fd_hw_sample *samp);
void fd_hw_query_prepare(struct fd_batch *batch, uint32_t num_tiles);
void fd_hw_query_prepare_tile(struct fd_batch *batch, uint32_t n,
struct fd_ringbuffer *ring);
void fd_hw_query_set_stage(struct fd_batch *batch,
struct fd_ringbuffer *ring, enum fd_render_stage stage);
void fd_hw_query_enable(struct fd_batch *batch, struct fd_ringbuffer *ring);
void fd_hw_query_register_provider(struct pipe_context *pctx,
const struct fd_hw_sample_provider *provider);
void fd_hw_query_init(struct pipe_context *pctx);
void fd_hw_query_fini(struct pipe_context *pctx);
static inline void
fd_hw_sample_reference(struct fd_context *ctx,
struct fd_hw_sample **ptr, struct fd_hw_sample *samp)
{
struct fd_hw_sample *old_samp = *ptr;
if (pipe_reference(&(*ptr)->reference, &samp->reference))
__fd_hw_sample_destroy(ctx, old_samp);
*ptr = samp;
}
#endif /* FREEDRENO_QUERY_HW_H_ */
|
