aboutsummaryrefslogtreecommitdiffstats
path: root/src/gallium/drivers/nv50/nv50_query.c
blob: 57b16a355dc1ff0bde3766aeb25ab13b84c08125 (plain)
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
/*
 * Copyright 2008 Ben Skeggs
 *
 * 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 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 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.
 */

#include "pipe/p_context.h"
#include "util/u_inlines.h"

#include "nv50_context.h"

struct nv50_query {
	struct nouveau_bo *bo;
	unsigned type;
	boolean ready;
	uint64_t result;
};

static INLINE struct nv50_query *
nv50_query(struct pipe_query *pipe)
{
	return (struct nv50_query *)pipe;
}

static struct pipe_query *
nv50_query_create(struct pipe_context *pipe, unsigned type)
{
	struct nouveau_device *dev = nouveau_screen(pipe->screen)->device;
	struct nv50_query *q = CALLOC_STRUCT(nv50_query);
	int ret;

	assert (q->type == PIPE_QUERY_OCCLUSION_COUNTER);
	q->type = type;

	ret = nouveau_bo_new(dev, NOUVEAU_BO_GART | NOUVEAU_BO_MAP, 256,
			     16, &q->bo);
	if (ret) {
		FREE(q);
		return NULL;
	}

	return (struct pipe_query *)q;
}

static void
nv50_query_destroy(struct pipe_context *pipe, struct pipe_query *pq)
{
	struct nv50_query *q = nv50_query(pq);

	if (q) {
		nouveau_bo_ref(NULL, &q->bo);
		FREE(q);
	}
}

static void
nv50_query_begin(struct pipe_context *pipe, struct pipe_query *pq)
{
	struct nv50_context *nv50 = nv50_context(pipe);
	struct nouveau_channel *chan = nv50->screen->base.channel;
	struct nouveau_grobj *tesla = nv50->screen->tesla;
	struct nv50_query *q = nv50_query(pq);

	BEGIN_RING(chan, tesla, NV50TCL_SAMPLECNT_RESET, 1);
	OUT_RING  (chan, 1);
	BEGIN_RING(chan, tesla, NV50TCL_SAMPLECNT_ENABLE, 1);
	OUT_RING  (chan, 1);

	q->ready = FALSE;
}

static void
nv50_query_end(struct pipe_context *pipe, struct pipe_query *pq)
{
	struct nv50_context *nv50 = nv50_context(pipe);
	struct nouveau_channel *chan = nv50->screen->base.channel;
	struct nouveau_grobj *tesla = nv50->screen->tesla;
	struct nv50_query *q = nv50_query(pq);

	MARK_RING (chan, 5, 2); /* flush on lack of space or relocs */
	BEGIN_RING(chan, tesla, NV50TCL_QUERY_ADDRESS_HIGH, 4);
	OUT_RELOCh(chan, q->bo, 0, NOUVEAU_BO_GART | NOUVEAU_BO_WR);
	OUT_RELOCl(chan, q->bo, 0, NOUVEAU_BO_GART | NOUVEAU_BO_WR);
	OUT_RING  (chan, 0x00000000);
	OUT_RING  (chan, 0x0100f002);

	BEGIN_RING(chan, tesla, NV50TCL_SAMPLECNT_ENABLE, 1);
	OUT_RING  (chan, 0);
}

static boolean
nv50_query_result(struct pipe_context *pipe, struct pipe_query *pq,
		  boolean wait, uint64_t *result)
{
	struct nv50_query *q = nv50_query(pq);
	int ret;

	if (!q->ready) {
		ret = nouveau_bo_map(q->bo, NOUVEAU_BO_RD |
				     (wait ? 0 : NOUVEAU_BO_NOWAIT));
		if (ret)
			return false;
		q->result = ((uint32_t *)q->bo->map)[1];
		q->ready = TRUE;
		nouveau_bo_unmap(q->bo);
	}

	*result = q->result;
	return q->ready;
}

static void
nv50_render_condition(struct pipe_context *pipe,
		      struct pipe_query *pq, uint mode)
{
	struct nv50_context *nv50 = nv50_context(pipe);
	struct nouveau_channel *chan = nv50->screen->base.channel;
	struct nouveau_grobj *tesla = nv50->screen->tesla;
	struct nv50_query *q;

	if (!pq) {
		BEGIN_RING(chan, tesla, NV50TCL_COND_MODE, 1);
		OUT_RING  (chan, NV50TCL_COND_MODE_ALWAYS);
		return;
	}
	q = nv50_query(pq);

	if (mode == PIPE_RENDER_COND_WAIT ||
	    mode == PIPE_RENDER_COND_BY_REGION_WAIT) {
		/* XXX: big fence, FIFO semaphore might be better */
		BEGIN_RING(chan, tesla, 0x0110, 1);
		OUT_RING  (chan, 0);
	}

	BEGIN_RING(chan, tesla, NV50TCL_COND_ADDRESS_HIGH, 3);
	OUT_RELOCh(chan, q->bo, 0, NOUVEAU_BO_GART | NOUVEAU_BO_RD);
	OUT_RELOCl(chan, q->bo, 0, NOUVEAU_BO_GART | NOUVEAU_BO_RD);
	OUT_RING  (chan, NV50TCL_COND_MODE_RES);
}

void
nv50_init_query_functions(struct nv50_context *nv50)
{
	nv50->pipe.create_query = nv50_query_create;
	nv50->pipe.destroy_query = nv50_query_destroy;
	nv50->pipe.begin_query = nv50_query_begin;
	nv50->pipe.end_query = nv50_query_end;
	nv50->pipe.get_query_result = nv50_query_result;
	nv50->pipe.render_condition = nv50_render_condition;
}