2 * Copyright © 2014 Broadcom
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
27 #include "pipe/p_defines.h"
28 #include "util/ralloc.h"
29 #include "util/u_inlines.h"
30 #include "util/u_memory.h"
31 #include "util/u_blitter.h"
32 #include "util/u_upload_mgr.h"
33 #include "indices/u_primconvert.h"
34 #include "pipe/p_screen.h"
36 #include "vc4_screen.h"
37 #include "vc4_context.h"
38 #include "vc4_resource.h"
41 vc4_flush(struct pipe_context
*pctx
)
43 struct vc4_context
*vc4
= vc4_context(pctx
);
44 struct pipe_surface
*cbuf
= vc4
->framebuffer
.cbufs
[0];
45 struct pipe_surface
*zsbuf
= vc4
->framebuffer
.zsbuf
;
47 if (!vc4
->needs_flush
)
50 /* The RCL setup would choke if the draw bounds cause no drawing, so
51 * just drop the drawing if that's the case.
53 if (vc4
->draw_max_x
<= vc4
->draw_min_x
||
54 vc4
->draw_max_y
<= vc4
->draw_min_y
) {
59 /* Increment the semaphore indicating that binning is done and
60 * unblocking the render thread. Note that this doesn't act until the
63 cl_ensure_space(&vc4
->bcl
, 8);
64 struct vc4_cl_out
*bcl
= cl_start(&vc4
->bcl
);
65 cl_u8(&bcl
, VC4_PACKET_INCREMENT_SEMAPHORE
);
66 /* The FLUSH caps all of our bin lists with a VC4_PACKET_RETURN. */
67 cl_u8(&bcl
, VC4_PACKET_FLUSH
);
68 cl_end(&vc4
->bcl
, bcl
);
70 if (cbuf
&& (vc4
->resolve
& PIPE_CLEAR_COLOR0
)) {
71 pipe_surface_reference(&vc4
->color_write
,
72 cbuf
->texture
->nr_samples
> 1 ?
74 pipe_surface_reference(&vc4
->msaa_color_write
,
75 cbuf
->texture
->nr_samples
> 1 ?
78 if (!(vc4
->cleared
& PIPE_CLEAR_COLOR0
)) {
79 pipe_surface_reference(&vc4
->color_read
, cbuf
);
81 pipe_surface_reference(&vc4
->color_read
, NULL
);
85 pipe_surface_reference(&vc4
->color_write
, NULL
);
86 pipe_surface_reference(&vc4
->color_read
, NULL
);
87 pipe_surface_reference(&vc4
->msaa_color_write
, NULL
);
90 if (vc4
->framebuffer
.zsbuf
&&
91 (vc4
->resolve
& (PIPE_CLEAR_DEPTH
| PIPE_CLEAR_STENCIL
))) {
92 pipe_surface_reference(&vc4
->zs_write
,
93 zsbuf
->texture
->nr_samples
> 1 ?
95 pipe_surface_reference(&vc4
->msaa_zs_write
,
96 zsbuf
->texture
->nr_samples
> 1 ?
99 if (!(vc4
->cleared
& (PIPE_CLEAR_DEPTH
| PIPE_CLEAR_STENCIL
))) {
100 pipe_surface_reference(&vc4
->zs_read
, zsbuf
);
102 pipe_surface_reference(&vc4
->zs_read
, NULL
);
105 pipe_surface_reference(&vc4
->zs_write
, NULL
);
106 pipe_surface_reference(&vc4
->zs_read
, NULL
);
107 pipe_surface_reference(&vc4
->msaa_zs_write
, NULL
);
114 vc4_pipe_flush(struct pipe_context
*pctx
, struct pipe_fence_handle
**fence
,
117 struct vc4_context
*vc4
= vc4_context(pctx
);
122 struct pipe_screen
*screen
= pctx
->screen
;
123 struct vc4_fence
*f
= vc4_fence_create(vc4
->screen
,
124 vc4
->last_emit_seqno
);
125 screen
->fence_reference(screen
, fence
, NULL
);
126 *fence
= (struct pipe_fence_handle
*)f
;
131 * Flushes the current command lists if they reference the given BO.
133 * This helps avoid flushing the command buffers when unnecessary.
136 vc4_cl_references_bo(struct pipe_context
*pctx
, struct vc4_bo
*bo
)
138 struct vc4_context
*vc4
= vc4_context(pctx
);
140 if (!vc4
->needs_flush
)
143 /* Walk all the referenced BOs in the drawing command list to see if
146 struct vc4_bo
**referenced_bos
= vc4
->bo_pointers
.base
;
147 for (int i
= 0; i
< cl_offset(&vc4
->bo_handles
) / 4; i
++) {
148 if (referenced_bos
[i
] == bo
) {
153 /* Also check for the Z/color buffers, since the references to those
154 * are only added immediately before submit.
156 struct vc4_surface
*csurf
= vc4_surface(vc4
->framebuffer
.cbufs
[0]);
158 struct vc4_resource
*ctex
= vc4_resource(csurf
->base
.texture
);
159 if (ctex
->bo
== bo
) {
164 struct vc4_surface
*zsurf
= vc4_surface(vc4
->framebuffer
.zsbuf
);
166 struct vc4_resource
*ztex
=
167 vc4_resource(zsurf
->base
.texture
);
168 if (ztex
->bo
== bo
) {
177 vc4_invalidate_resource(struct pipe_context
*pctx
, struct pipe_resource
*prsc
)
179 struct vc4_context
*vc4
= vc4_context(pctx
);
180 struct pipe_surface
*zsurf
= vc4
->framebuffer
.zsbuf
;
182 if (zsurf
&& zsurf
->texture
== prsc
)
183 vc4
->resolve
&= ~(PIPE_CLEAR_DEPTH
| PIPE_CLEAR_STENCIL
);
187 vc4_context_destroy(struct pipe_context
*pctx
)
189 struct vc4_context
*vc4
= vc4_context(pctx
);
192 util_blitter_destroy(vc4
->blitter
);
194 if (vc4
->primconvert
)
195 util_primconvert_destroy(vc4
->primconvert
);
198 u_upload_destroy(vc4
->uploader
);
200 util_slab_destroy(&vc4
->transfer_pool
);
202 pipe_surface_reference(&vc4
->framebuffer
.cbufs
[0], NULL
);
203 pipe_surface_reference(&vc4
->framebuffer
.zsbuf
, NULL
);
205 pipe_surface_reference(&vc4
->color_write
, NULL
);
206 pipe_surface_reference(&vc4
->color_read
, NULL
);
208 vc4_program_fini(pctx
);
213 struct pipe_context
*
214 vc4_context_create(struct pipe_screen
*pscreen
, void *priv
, unsigned flags
)
216 struct vc4_screen
*screen
= vc4_screen(pscreen
);
217 struct vc4_context
*vc4
;
219 /* Prevent dumping of the shaders built during context setup. */
220 uint32_t saved_shaderdb_flag
= vc4_debug
& VC4_DEBUG_SHADERDB
;
221 vc4_debug
&= ~VC4_DEBUG_SHADERDB
;
223 vc4
= rzalloc(NULL
, struct vc4_context
);
226 struct pipe_context
*pctx
= &vc4
->base
;
228 vc4
->screen
= screen
;
230 pctx
->screen
= pscreen
;
232 pctx
->destroy
= vc4_context_destroy
;
233 pctx
->flush
= vc4_pipe_flush
;
234 pctx
->invalidate_resource
= vc4_invalidate_resource
;
237 vc4_state_init(pctx
);
238 vc4_program_init(pctx
);
239 vc4_query_init(pctx
);
240 vc4_resource_context_init(pctx
);
244 vc4
->fd
= screen
->fd
;
246 util_slab_create(&vc4
->transfer_pool
, sizeof(struct vc4_transfer
),
247 16, UTIL_SLAB_SINGLETHREADED
);
248 vc4
->blitter
= util_blitter_create(pctx
);
252 vc4
->primconvert
= util_primconvert_create(pctx
,
253 (1 << PIPE_PRIM_QUADS
) - 1);
254 if (!vc4
->primconvert
)
257 vc4
->uploader
= u_upload_create(pctx
, 16 * 1024,
258 PIPE_BIND_INDEX_BUFFER
,
261 vc4_debug
|= saved_shaderdb_flag
;
263 vc4
->sample_mask
= (1 << VC4_MAX_SAMPLES
) - 1;