1 /*
2 * Copyright © 2014 Broadcom
3 *
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:
10 *
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
13 * Software.
14 *
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
21 * IN THE SOFTWARE.
22 */
23
24 #include <xf86drm.h>
25 #include <err.h>
26
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 "pipe/p_screen.h"
34
35 #include "vc4_screen.h"
36 #include "vc4_context.h"
37 #include "vc4_resource.h"
38
39 void
vc4_flush(struct pipe_context * pctx)40 vc4_flush(struct pipe_context *pctx)
41 {
42 struct vc4_context *vc4 = vc4_context(pctx);
43
44 hash_table_foreach(vc4->jobs, entry) {
45 struct vc4_job *job = entry->data;
46 vc4_job_submit(vc4, job);
47 }
48 }
49
50 static void
vc4_pipe_flush(struct pipe_context * pctx,struct pipe_fence_handle ** fence,unsigned flags)51 vc4_pipe_flush(struct pipe_context *pctx, struct pipe_fence_handle **fence,
52 unsigned flags)
53 {
54 struct vc4_context *vc4 = vc4_context(pctx);
55
56 vc4_flush(pctx);
57
58 if (fence) {
59 struct pipe_screen *screen = pctx->screen;
60 int fd = -1;
61
62 if (flags & PIPE_FLUSH_FENCE_FD) {
63 /* The vc4_fence takes ownership of the returned fd. */
64 drmSyncobjExportSyncFile(vc4->fd, vc4->job_syncobj,
65 &fd);
66 }
67
68 struct vc4_fence *f = vc4_fence_create(vc4->screen,
69 vc4->last_emit_seqno,
70 fd);
71 screen->fence_reference(screen, fence, NULL);
72 *fence = (struct pipe_fence_handle *)f;
73 }
74 }
75
76 /* We can't flush the texture cache within rendering a tile, so we have to
77 * flush all rendering to the kernel so that the next job reading from the
78 * tile gets a flushed cache.
79 */
80 static void
vc4_texture_barrier(struct pipe_context * pctx,unsigned flags)81 vc4_texture_barrier(struct pipe_context *pctx, unsigned flags)
82 {
83 vc4_flush(pctx);
84 }
85
86 static void
vc4_invalidate_resource(struct pipe_context * pctx,struct pipe_resource * prsc)87 vc4_invalidate_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
88 {
89 struct vc4_context *vc4 = vc4_context(pctx);
90 struct vc4_resource *rsc = vc4_resource(prsc);
91
92 rsc->initialized_buffers = 0;
93
94 struct hash_entry *entry = _mesa_hash_table_search(vc4->write_jobs,
95 prsc);
96 if (!entry)
97 return;
98
99 struct vc4_job *job = entry->data;
100 if (job->key.zsbuf && job->key.zsbuf->texture == prsc)
101 job->resolve &= ~(PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL);
102 }
103
104 static void
vc4_context_destroy(struct pipe_context * pctx)105 vc4_context_destroy(struct pipe_context *pctx)
106 {
107 struct vc4_context *vc4 = vc4_context(pctx);
108
109 vc4_flush(pctx);
110
111 if (vc4->blitter)
112 util_blitter_destroy(vc4->blitter);
113
114 if (vc4->uploader)
115 u_upload_destroy(vc4->uploader);
116
117 slab_destroy_child(&vc4->transfer_pool);
118
119 util_unreference_framebuffer_state(&vc4->framebuffer);
120
121 if (vc4->yuv_linear_blit_vs)
122 pctx->delete_vs_state(pctx, vc4->yuv_linear_blit_vs);
123 if (vc4->yuv_linear_blit_fs_8bit)
124 pctx->delete_fs_state(pctx, vc4->yuv_linear_blit_fs_8bit);
125 if (vc4->yuv_linear_blit_fs_16bit)
126 pctx->delete_fs_state(pctx, vc4->yuv_linear_blit_fs_16bit);
127
128 vc4_program_fini(pctx);
129
130 if (vc4->screen->has_syncobj) {
131 drmSyncobjDestroy(vc4->fd, vc4->job_syncobj);
132 drmSyncobjDestroy(vc4->fd, vc4->in_syncobj);
133 }
134 if (vc4->in_fence_fd >= 0)
135 close(vc4->in_fence_fd);
136
137 ralloc_free(vc4);
138 }
139
140 struct pipe_context *
vc4_context_create(struct pipe_screen * pscreen,void * priv,unsigned flags)141 vc4_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags)
142 {
143 struct vc4_screen *screen = vc4_screen(pscreen);
144 struct vc4_context *vc4;
145 int err;
146
147 /* Prevent dumping of the shaders built during context setup. */
148 uint32_t saved_shaderdb_flag = vc4_mesa_debug & VC4_DEBUG_SHADERDB;
149 vc4_mesa_debug &= ~VC4_DEBUG_SHADERDB;
150
151 vc4 = rzalloc(NULL, struct vc4_context);
152 if (!vc4)
153 return NULL;
154 struct pipe_context *pctx = &vc4->base;
155
156 vc4->screen = screen;
157
158 pctx->screen = pscreen;
159 pctx->priv = priv;
160 pctx->destroy = vc4_context_destroy;
161 pctx->flush = vc4_pipe_flush;
162 pctx->set_debug_callback = u_default_set_debug_callback;
163 pctx->invalidate_resource = vc4_invalidate_resource;
164 pctx->texture_barrier = vc4_texture_barrier;
165
166 vc4_draw_init(pctx);
167 vc4_state_init(pctx);
168 vc4_program_init(pctx);
169 vc4_query_init(pctx);
170 vc4_resource_context_init(pctx);
171
172 vc4->fd = screen->fd;
173
174 err = vc4_job_init(vc4);
175 if (err)
176 goto fail;
177
178 err = vc4_fence_context_init(vc4);
179 if (err)
180 goto fail;
181
182 slab_create_child(&vc4->transfer_pool, &screen->transfer_pool);
183
184 vc4->uploader = u_upload_create_default(&vc4->base);
185 vc4->base.stream_uploader = vc4->uploader;
186 vc4->base.const_uploader = vc4->uploader;
187
188 vc4->blitter = util_blitter_create(pctx);
189 if (!vc4->blitter)
190 goto fail;
191
192 vc4_mesa_debug |= saved_shaderdb_flag;
193
194 vc4->sample_mask = (1 << VC4_MAX_SAMPLES) - 1;
195
196 return &vc4->base;
197
198 fail:
199 pctx->destroy(pctx);
200 return NULL;
201 }
202