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
169
170
171
172
173
|
/*
* Copyright 2014, 2015 Red Hat.
*
* 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
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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 "util/u_inlines.h"
#include "util/u_memory.h"
#include "virgl_context.h"
#include "virgl_resource.h"
#include "virgl_screen.h"
static void virgl_buffer_destroy(struct pipe_screen *screen,
struct pipe_resource *buf)
{
struct virgl_screen *vs = virgl_screen(screen);
struct virgl_buffer *vbuf = virgl_buffer(buf);
util_range_destroy(&vbuf->valid_buffer_range);
vs->vws->resource_unref(vs->vws, vbuf->base.hw_res);
FREE(vbuf);
}
static void *virgl_buffer_transfer_map(struct pipe_context *ctx,
struct pipe_resource *resource,
unsigned level,
unsigned usage,
const struct pipe_box *box,
struct pipe_transfer **transfer)
{
struct virgl_context *vctx = virgl_context(ctx);
struct virgl_screen *vs = virgl_screen(ctx->screen);
struct virgl_buffer *vbuf = virgl_buffer(resource);
struct virgl_transfer *trans;
void *ptr;
bool readback;
uint32_t offset;
bool doflushwait = false;
if ((usage & PIPE_TRANSFER_READ) && (vbuf->on_list == TRUE))
doflushwait = true;
else
doflushwait = virgl_res_needs_flush_wait(vctx, &vbuf->base, usage);
if (doflushwait)
ctx->flush(ctx, NULL, 0);
trans = slab_alloc(&vctx->texture_transfer_pool);
if (!trans)
return NULL;
trans->base.resource = resource;
trans->base.level = level;
trans->base.usage = usage;
trans->base.box = *box;
trans->base.stride = 0;
trans->base.layer_stride = 0;
offset = box->x;
readback = virgl_res_needs_readback(vctx, &vbuf->base, usage);
if (readback)
vs->vws->transfer_get(vs->vws, vbuf->base.hw_res, box, trans->base.stride, trans->base.layer_stride, offset, level);
if (!(usage & PIPE_TRANSFER_UNSYNCHRONIZED))
doflushwait = true;
if (doflushwait || readback)
vs->vws->resource_wait(vs->vws, vbuf->base.hw_res);
ptr = vs->vws->resource_map(vs->vws, vbuf->base.hw_res);
if (!ptr) {
return NULL;
}
trans->offset = offset;
*transfer = &trans->base;
return ptr + trans->offset;
}
static void virgl_buffer_transfer_unmap(struct pipe_context *ctx,
struct pipe_transfer *transfer)
{
struct virgl_context *vctx = virgl_context(ctx);
struct virgl_transfer *trans = virgl_transfer(transfer);
struct virgl_buffer *vbuf = virgl_buffer(transfer->resource);
if (trans->base.usage & PIPE_TRANSFER_WRITE) {
if (!(transfer->usage & PIPE_TRANSFER_FLUSH_EXPLICIT)) {
struct virgl_screen *vs = virgl_screen(ctx->screen);
vctx->num_transfers++;
vs->vws->transfer_put(vs->vws, vbuf->base.hw_res,
&transfer->box, trans->base.stride, trans->base.layer_stride, trans->offset, transfer->level);
}
}
slab_free(&vctx->texture_transfer_pool, trans);
}
static void virgl_buffer_transfer_flush_region(struct pipe_context *ctx,
struct pipe_transfer *transfer,
const struct pipe_box *box)
{
struct virgl_context *vctx = virgl_context(ctx);
struct virgl_buffer *vbuf = virgl_buffer(transfer->resource);
if (!vbuf->on_list) {
struct pipe_resource *res = NULL;
list_addtail(&vbuf->flush_list, &vctx->to_flush_bufs);
vbuf->on_list = TRUE;
pipe_resource_reference(&res, &vbuf->base.u.b);
}
util_range_add(&vbuf->valid_buffer_range, transfer->box.x + box->x,
transfer->box.x + box->x + box->width);
vbuf->base.clean = FALSE;
}
static const struct u_resource_vtbl virgl_buffer_vtbl =
{
u_default_resource_get_handle, /* get_handle */
virgl_buffer_destroy, /* resource_destroy */
virgl_buffer_transfer_map, /* transfer_map */
virgl_buffer_transfer_flush_region, /* transfer_flush_region */
virgl_buffer_transfer_unmap, /* transfer_unmap */
};
struct pipe_resource *virgl_buffer_create(struct virgl_screen *vs,
const struct pipe_resource *template)
{
struct virgl_buffer *buf;
uint32_t size;
uint32_t vbind;
buf = CALLOC_STRUCT(virgl_buffer);
buf->base.clean = TRUE;
buf->base.u.b = *template;
buf->base.u.b.screen = &vs->base;
buf->base.u.vtbl = &virgl_buffer_vtbl;
pipe_reference_init(&buf->base.u.b.reference, 1);
util_range_init(&buf->valid_buffer_range);
vbind = pipe_to_virgl_bind(template->bind);
size = template->width0;
/* SSBOs and texture buffers can written to by host compute shaders. */
if (vbind == VIRGL_BIND_SHADER_BUFFER || vbind == VIRGL_BIND_SAMPLER_VIEW)
buf->base.clean = FALSE;
buf->base.hw_res = vs->vws->resource_create(vs->vws, template->target, template->format, vbind, template->width0, 1, 1, 1, 0, 0, size);
util_range_set_empty(&buf->valid_buffer_range);
return &buf->base.u.b;
}
|
