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, cbuf);
72 if (!(vc4->cleared & PIPE_CLEAR_COLOR0)) {
73 pipe_surface_reference(&vc4->color_read, cbuf);
75 pipe_surface_reference(&vc4->color_read, NULL);
79 pipe_surface_reference(&vc4->color_write, NULL);
80 pipe_surface_reference(&vc4->color_read, NULL);
83 if (vc4->framebuffer.zsbuf &&
84 (vc4->resolve & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL))) {
85 pipe_surface_reference(&vc4->zs_write, zsbuf);
86 if (!(vc4->cleared & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL))) {
87 pipe_surface_reference(&vc4->zs_read, zsbuf);
89 pipe_surface_reference(&vc4->zs_read, NULL);
92 pipe_surface_reference(&vc4->zs_write, NULL);
93 pipe_surface_reference(&vc4->zs_read, NULL);
100 vc4_pipe_flush(struct pipe_context *pctx, struct pipe_fence_handle **fence,
103 struct vc4_context *vc4 = vc4_context(pctx);
108 struct pipe_screen *screen = pctx->screen;
109 struct vc4_fence *f = vc4_fence_create(vc4->screen,
110 vc4->last_emit_seqno);
111 screen->fence_reference(screen, fence, NULL);
112 *fence = (struct pipe_fence_handle *)f;
117 * Flushes the current command lists if they reference the given BO.
119 * This helps avoid flushing the command buffers when unnecessary.
122 vc4_cl_references_bo(struct pipe_context *pctx, struct vc4_bo *bo)
124 struct vc4_context *vc4 = vc4_context(pctx);
126 if (!vc4->needs_flush)
129 /* Walk all the referenced BOs in the drawing command list to see if
132 struct vc4_bo **referenced_bos = vc4->bo_pointers.base;
133 for (int i = 0; i < cl_offset(&vc4->bo_handles) / 4; i++) {
134 if (referenced_bos[i] == bo) {
139 /* Also check for the Z/color buffers, since the references to those
140 * are only added immediately before submit.
142 struct vc4_surface *csurf = vc4_surface(vc4->framebuffer.cbufs[0]);
144 struct vc4_resource *ctex = vc4_resource(csurf->base.texture);
145 if (ctex->bo == bo) {
150 struct vc4_surface *zsurf = vc4_surface(vc4->framebuffer.zsbuf);
152 struct vc4_resource *ztex =
153 vc4_resource(zsurf->base.texture);
154 if (ztex->bo == bo) {
163 vc4_invalidate_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
165 struct vc4_context *vc4 = vc4_context(pctx);
166 struct pipe_surface *zsurf = vc4->framebuffer.zsbuf;
168 if (zsurf && zsurf->texture == prsc)
169 vc4->resolve &= ~(PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL);
173 vc4_context_destroy(struct pipe_context *pctx)
175 struct vc4_context *vc4 = vc4_context(pctx);
178 util_blitter_destroy(vc4->blitter);
180 if (vc4->primconvert)
181 util_primconvert_destroy(vc4->primconvert);
184 u_upload_destroy(vc4->uploader);
186 util_slab_destroy(&vc4->transfer_pool);
188 pipe_surface_reference(&vc4->framebuffer.cbufs[0], NULL);
189 pipe_surface_reference(&vc4->framebuffer.zsbuf, NULL);
191 vc4_program_fini(pctx);
196 struct pipe_context *
197 vc4_context_create(struct pipe_screen *pscreen, void *priv)
199 struct vc4_screen *screen = vc4_screen(pscreen);
200 struct vc4_context *vc4;
202 /* Prevent dumping of the shaders built during context setup. */
203 uint32_t saved_shaderdb_flag = vc4_debug & VC4_DEBUG_SHADERDB;
204 vc4_debug &= ~VC4_DEBUG_SHADERDB;
206 vc4 = rzalloc(NULL, struct vc4_context);
209 struct pipe_context *pctx = &vc4->base;
211 vc4->screen = screen;
213 pctx->screen = pscreen;
215 pctx->destroy = vc4_context_destroy;
216 pctx->flush = vc4_pipe_flush;
217 pctx->invalidate_resource = vc4_invalidate_resource;
220 vc4_state_init(pctx);
221 vc4_program_init(pctx);
222 vc4_query_init(pctx);
223 vc4_resource_context_init(pctx);
227 vc4->fd = screen->fd;
229 util_slab_create(&vc4->transfer_pool, sizeof(struct vc4_transfer),
230 16, UTIL_SLAB_SINGLETHREADED);
231 vc4->blitter = util_blitter_create(pctx);
235 vc4->primconvert = util_primconvert_create(pctx,
236 (1 << PIPE_PRIM_QUADS) - 1);
237 if (!vc4->primconvert)
240 vc4->uploader = u_upload_create(pctx, 16 * 1024, 4,
241 PIPE_BIND_INDEX_BUFFER);
243 vc4_debug |= saved_shaderdb_flag;