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
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
/*
* Copyright © 2014 Broadcom
*
* 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.
*/
#include <xf86drm.h>
#include <err.h>
#include "pipe/p_defines.h"
#include "util/ralloc.h"
#include "util/u_inlines.h"
#include "util/u_memory.h"
#include "util/u_blitter.h"
#include "util/u_upload_mgr.h"
#include "indices/u_primconvert.h"
#include "pipe/p_screen.h"
#include "vc4_screen.h"
#include "vc4_context.h"
#include "vc4_resource.h"
void
vc4_flush(struct pipe_context *pctx)
{
struct vc4_context *vc4 = vc4_context(pctx);
struct pipe_surface *cbuf = vc4->framebuffer.cbufs[0];
struct pipe_surface *zsbuf = vc4->framebuffer.zsbuf;
if (!vc4->needs_flush)
return;
/* The RCL setup would choke if the draw bounds cause no drawing, so
* just drop the drawing if that's the case.
*/
if (vc4->draw_max_x <= vc4->draw_min_x ||
vc4->draw_max_y <= vc4->draw_min_y) {
vc4_job_reset(vc4);
return;
}
/* Increment the semaphore indicating that binning is done and
* unblocking the render thread. Note that this doesn't act until the
* FLUSH completes.
*/
cl_ensure_space(&vc4->bcl, 8);
cl_u8(&vc4->bcl, VC4_PACKET_INCREMENT_SEMAPHORE);
/* The FLUSH caps all of our bin lists with a VC4_PACKET_RETURN. */
cl_u8(&vc4->bcl, VC4_PACKET_FLUSH);
if (cbuf && (vc4->resolve & PIPE_CLEAR_COLOR0)) {
pipe_surface_reference(&vc4->color_write, cbuf);
if (!(vc4->cleared & PIPE_CLEAR_COLOR0)) {
pipe_surface_reference(&vc4->color_read, cbuf);
} else {
pipe_surface_reference(&vc4->color_read, NULL);
}
} else {
pipe_surface_reference(&vc4->color_write, NULL);
pipe_surface_reference(&vc4->color_read, NULL);
}
if (vc4->framebuffer.zsbuf &&
(vc4->resolve & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL))) {
pipe_surface_reference(&vc4->zs_write, zsbuf);
if (!(vc4->cleared & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL))) {
pipe_surface_reference(&vc4->zs_read, zsbuf);
} else {
pipe_surface_reference(&vc4->zs_read, NULL);
}
} else {
pipe_surface_reference(&vc4->zs_write, NULL);
pipe_surface_reference(&vc4->zs_read, NULL);
}
vc4_job_submit(vc4);
}
static void
vc4_pipe_flush(struct pipe_context *pctx, struct pipe_fence_handle **fence,
unsigned flags)
{
struct vc4_context *vc4 = vc4_context(pctx);
vc4_flush(pctx);
if (fence) {
struct vc4_fence *f = vc4_fence_create(vc4->screen,
vc4->last_emit_seqno);
*fence = (struct pipe_fence_handle *)f;
}
}
/**
* Flushes the current command lists if they reference the given BO.
*
* This helps avoid flushing the command buffers when unnecessary.
*/
bool
vc4_cl_references_bo(struct pipe_context *pctx, struct vc4_bo *bo)
{
struct vc4_context *vc4 = vc4_context(pctx);
if (!vc4->needs_flush)
return false;
/* Walk all the referenced BOs in the drawing command list to see if
* they match.
*/
struct vc4_bo **referenced_bos = vc4->bo_pointers.base;
for (int i = 0; i < (vc4->bo_handles.next -
vc4->bo_handles.base) / 4; i++) {
if (referenced_bos[i] == bo) {
return true;
}
}
/* Also check for the Z/color buffers, since the references to those
* are only added immediately before submit.
*/
struct vc4_surface *csurf = vc4_surface(vc4->framebuffer.cbufs[0]);
if (csurf) {
struct vc4_resource *ctex = vc4_resource(csurf->base.texture);
if (ctex->bo == bo) {
return true;
}
}
struct vc4_surface *zsurf = vc4_surface(vc4->framebuffer.zsbuf);
if (zsurf) {
struct vc4_resource *ztex =
vc4_resource(zsurf->base.texture);
if (ztex->bo == bo) {
return true;
}
}
return false;
}
static void
vc4_invalidate_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
{
struct vc4_context *vc4 = vc4_context(pctx);
struct pipe_surface *zsurf = vc4->framebuffer.zsbuf;
if (zsurf && zsurf->texture == prsc)
vc4->resolve &= ~(PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL);
}
static void
vc4_context_destroy(struct pipe_context *pctx)
{
struct vc4_context *vc4 = vc4_context(pctx);
if (vc4->blitter)
util_blitter_destroy(vc4->blitter);
if (vc4->primconvert)
util_primconvert_destroy(vc4->primconvert);
if (vc4->uploader)
u_upload_destroy(vc4->uploader);
util_slab_destroy(&vc4->transfer_pool);
pipe_surface_reference(&vc4->framebuffer.cbufs[0], NULL);
pipe_surface_reference(&vc4->framebuffer.zsbuf, NULL);
vc4_bo_unreference(&vc4->tile_alloc);
vc4_bo_unreference(&vc4->tile_state);
vc4_program_fini(pctx);
ralloc_free(vc4);
}
struct pipe_context *
vc4_context_create(struct pipe_screen *pscreen, void *priv)
{
struct vc4_screen *screen = vc4_screen(pscreen);
struct vc4_context *vc4;
/* Prevent dumping of the shaders built during context setup. */
uint32_t saved_shaderdb_flag = vc4_debug & VC4_DEBUG_SHADERDB;
vc4_debug &= ~VC4_DEBUG_SHADERDB;
vc4 = rzalloc(NULL, struct vc4_context);
if (vc4 == NULL)
return NULL;
struct pipe_context *pctx = &vc4->base;
vc4->screen = screen;
pctx->screen = pscreen;
pctx->priv = priv;
pctx->destroy = vc4_context_destroy;
pctx->flush = vc4_pipe_flush;
pctx->invalidate_resource = vc4_invalidate_resource;
vc4_draw_init(pctx);
vc4_state_init(pctx);
vc4_program_init(pctx);
vc4_query_init(pctx);
vc4_resource_context_init(pctx);
vc4_job_init(vc4);
vc4->fd = screen->fd;
util_slab_create(&vc4->transfer_pool, sizeof(struct vc4_transfer),
16, UTIL_SLAB_SINGLETHREADED);
vc4->blitter = util_blitter_create(pctx);
if (!vc4->blitter)
goto fail;
vc4->primconvert = util_primconvert_create(pctx,
(1 << PIPE_PRIM_QUADS) - 1);
if (!vc4->primconvert)
goto fail;
vc4->uploader = u_upload_create(pctx, 16 * 1024, 4,
PIPE_BIND_INDEX_BUFFER);
vc4_debug |= saved_shaderdb_flag;
return &vc4->base;
fail:
pctx->destroy(pctx);
return NULL;
}
|
