vc4_context.c revision 01e04c3f 
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 "indices/u_primconvert.h"
34#include "pipe/p_screen.h"
35
36#include "vc4_screen.h"
37#include "vc4_context.h"
38#include "vc4_resource.h"
39
40void
41vc4_flush(struct pipe_context *pctx)
42{
43        struct vc4_context *vc4 = vc4_context(pctx);
44
45        hash_table_foreach(vc4->jobs, entry) {
46                struct vc4_job *job = entry->data;
47                vc4_job_submit(vc4, job);
48        }
49}
50
51static void
52vc4_pipe_flush(struct pipe_context *pctx, struct pipe_fence_handle **fence,
53               unsigned flags)
54{
55        struct vc4_context *vc4 = vc4_context(pctx);
56
57        vc4_flush(pctx);
58
59        if (fence) {
60                struct pipe_screen *screen = pctx->screen;
61                int fd = -1;
62
63                if (flags & PIPE_FLUSH_FENCE_FD) {
64                        /* The vc4_fence takes ownership of the returned fd. */
65                        drmSyncobjExportSyncFile(vc4->fd, vc4->job_syncobj,
66                                                 &fd);
67                }
68
69                struct vc4_fence *f = vc4_fence_create(vc4->screen,
70                                                       vc4->last_emit_seqno,
71                                                       fd);
72                screen->fence_reference(screen, fence, NULL);
73                *fence = (struct pipe_fence_handle *)f;
74        }
75}
76
77/* We can't flush the texture cache within rendering a tile, so we have to
78 * flush all rendering to the kernel so that the next job reading from the
79 * tile gets a flushed cache.
80 */
81static void
82vc4_texture_barrier(struct pipe_context *pctx, unsigned flags)
83{
84        vc4_flush(pctx);
85}
86
87static void
88vc4_invalidate_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
89{
90        struct vc4_context *vc4 = vc4_context(pctx);
91        struct vc4_resource *rsc = vc4_resource(prsc);
92
93        rsc->initialized_buffers = 0;
94
95        struct hash_entry *entry = _mesa_hash_table_search(vc4->write_jobs,
96                                                           prsc);
97        if (!entry)
98                return;
99
100        struct vc4_job *job = entry->data;
101        if (job->key.zsbuf && job->key.zsbuf->texture == prsc)
102                job->resolve &= ~(PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL);
103}
104
105static void
106vc4_context_destroy(struct pipe_context *pctx)
107{
108        struct vc4_context *vc4 = vc4_context(pctx);
109
110        vc4_flush(pctx);
111
112        if (vc4->blitter)
113                util_blitter_destroy(vc4->blitter);
114
115        if (vc4->primconvert)
116                util_primconvert_destroy(vc4->primconvert);
117
118        if (vc4->uploader)
119                u_upload_destroy(vc4->uploader);
120
121        slab_destroy_child(&vc4->transfer_pool);
122
123        pipe_surface_reference(&vc4->framebuffer.cbufs[0], NULL);
124        pipe_surface_reference(&vc4->framebuffer.zsbuf, NULL);
125
126        if (vc4->yuv_linear_blit_vs)
127                pctx->delete_vs_state(pctx, vc4->yuv_linear_blit_vs);
128        if (vc4->yuv_linear_blit_fs_8bit)
129                pctx->delete_fs_state(pctx, vc4->yuv_linear_blit_fs_8bit);
130        if (vc4->yuv_linear_blit_fs_16bit)
131                pctx->delete_fs_state(pctx, vc4->yuv_linear_blit_fs_16bit);
132
133        vc4_program_fini(pctx);
134
135        if (vc4->screen->has_syncobj) {
136                drmSyncobjDestroy(vc4->fd, vc4->job_syncobj);
137                drmSyncobjDestroy(vc4->fd, vc4->in_syncobj);
138        }
139        if (vc4->in_fence_fd >= 0)
140                close(vc4->in_fence_fd);
141
142        ralloc_free(vc4);
143}
144
145struct pipe_context *
146vc4_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags)
147{
148        struct vc4_screen *screen = vc4_screen(pscreen);
149        struct vc4_context *vc4;
150        int err;
151
152        /* Prevent dumping of the shaders built during context setup. */
153        uint32_t saved_shaderdb_flag = vc4_debug & VC4_DEBUG_SHADERDB;
154        vc4_debug &= ~VC4_DEBUG_SHADERDB;
155
156        vc4 = rzalloc(NULL, struct vc4_context);
157        if (!vc4)
158                return NULL;
159        struct pipe_context *pctx = &vc4->base;
160
161        vc4->screen = screen;
162
163        pctx->screen = pscreen;
164        pctx->priv = priv;
165        pctx->destroy = vc4_context_destroy;
166        pctx->flush = vc4_pipe_flush;
167        pctx->invalidate_resource = vc4_invalidate_resource;
168        pctx->texture_barrier = vc4_texture_barrier;
169
170        vc4_draw_init(pctx);
171        vc4_state_init(pctx);
172        vc4_program_init(pctx);
173        vc4_query_init(pctx);
174        vc4_resource_context_init(pctx);
175
176        vc4->fd = screen->fd;
177
178        err = vc4_job_init(vc4);
179        if (err)
180                goto fail;
181
182        err = vc4_fence_context_init(vc4);
183        if (err)
184                goto fail;
185
186        slab_create_child(&vc4->transfer_pool, &screen->transfer_pool);
187
188	vc4->uploader = u_upload_create_default(&vc4->base);
189	vc4->base.stream_uploader = vc4->uploader;
190	vc4->base.const_uploader = vc4->uploader;
191
192	vc4->blitter = util_blitter_create(pctx);
193        if (!vc4->blitter)
194                goto fail;
195
196        vc4->primconvert = util_primconvert_create(pctx,
197                                                   (1 << PIPE_PRIM_QUADS) - 1);
198        if (!vc4->primconvert)
199                goto fail;
200
201        vc4_debug |= saved_shaderdb_flag;
202
203        vc4->sample_mask = (1 << VC4_MAX_SAMPLES) - 1;
204
205        return &vc4->base;
206
207fail:
208        pctx->destroy(pctx);
209        return NULL;
210}
211