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_set_debug_callback(struct pipe_context *pctx,
89                       const struct pipe_debug_callback *cb)
90{
91        struct vc4_context *vc4 = vc4_context(pctx);
92
93        if (cb)
94                vc4->debug = *cb;
95        else
96                memset(&vc4->debug, 0, sizeof(vc4->debug));
97}
98
99static void
100vc4_invalidate_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
101{
102        struct vc4_context *vc4 = vc4_context(pctx);
103        struct vc4_resource *rsc = vc4_resource(prsc);
104
105        rsc->initialized_buffers = 0;
106
107        struct hash_entry *entry = _mesa_hash_table_search(vc4->write_jobs,
108                                                           prsc);
109        if (!entry)
110                return;
111
112        struct vc4_job *job = entry->data;
113        if (job->key.zsbuf && job->key.zsbuf->texture == prsc)
114                job->resolve &= ~(PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL);
115}
116
117static void
118vc4_context_destroy(struct pipe_context *pctx)
119{
120        struct vc4_context *vc4 = vc4_context(pctx);
121
122        vc4_flush(pctx);
123
124        if (vc4->blitter)
125                util_blitter_destroy(vc4->blitter);
126
127        if (vc4->primconvert)
128                util_primconvert_destroy(vc4->primconvert);
129
130        if (vc4->uploader)
131                u_upload_destroy(vc4->uploader);
132
133        slab_destroy_child(&vc4->transfer_pool);
134
135        pipe_surface_reference(&vc4->framebuffer.cbufs[0], NULL);
136        pipe_surface_reference(&vc4->framebuffer.zsbuf, NULL);
137
138        if (vc4->yuv_linear_blit_vs)
139                pctx->delete_vs_state(pctx, vc4->yuv_linear_blit_vs);
140        if (vc4->yuv_linear_blit_fs_8bit)
141                pctx->delete_fs_state(pctx, vc4->yuv_linear_blit_fs_8bit);
142        if (vc4->yuv_linear_blit_fs_16bit)
143                pctx->delete_fs_state(pctx, vc4->yuv_linear_blit_fs_16bit);
144
145        vc4_program_fini(pctx);
146
147        if (vc4->screen->has_syncobj) {
148                drmSyncobjDestroy(vc4->fd, vc4->job_syncobj);
149                drmSyncobjDestroy(vc4->fd, vc4->in_syncobj);
150        }
151        if (vc4->in_fence_fd >= 0)
152                close(vc4->in_fence_fd);
153
154        ralloc_free(vc4);
155}
156
157struct pipe_context *
158vc4_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags)
159{
160        struct vc4_screen *screen = vc4_screen(pscreen);
161        struct vc4_context *vc4;
162        int err;
163
164        /* Prevent dumping of the shaders built during context setup. */
165        uint32_t saved_shaderdb_flag = vc4_debug & VC4_DEBUG_SHADERDB;
166        vc4_debug &= ~VC4_DEBUG_SHADERDB;
167
168        vc4 = rzalloc(NULL, struct vc4_context);
169        if (!vc4)
170                return NULL;
171        struct pipe_context *pctx = &vc4->base;
172
173        vc4->screen = screen;
174
175        pctx->screen = pscreen;
176        pctx->priv = priv;
177        pctx->destroy = vc4_context_destroy;
178        pctx->flush = vc4_pipe_flush;
179        pctx->set_debug_callback = vc4_set_debug_callback;
180        pctx->invalidate_resource = vc4_invalidate_resource;
181        pctx->texture_barrier = vc4_texture_barrier;
182
183        vc4_draw_init(pctx);
184        vc4_state_init(pctx);
185        vc4_program_init(pctx);
186        vc4_query_init(pctx);
187        vc4_resource_context_init(pctx);
188
189        vc4->fd = screen->fd;
190
191        err = vc4_job_init(vc4);
192        if (err)
193                goto fail;
194
195        err = vc4_fence_context_init(vc4);
196        if (err)
197                goto fail;
198
199        slab_create_child(&vc4->transfer_pool, &screen->transfer_pool);
200
201	vc4->uploader = u_upload_create_default(&vc4->base);
202	vc4->base.stream_uploader = vc4->uploader;
203	vc4->base.const_uploader = vc4->uploader;
204
205	vc4->blitter = util_blitter_create(pctx);
206        if (!vc4->blitter)
207                goto fail;
208
209        vc4->primconvert = util_primconvert_create(pctx,
210                                                   (1 << PIPE_PRIM_QUADS) - 1);
211        if (!vc4->primconvert)
212                goto fail;
213
214        vc4_debug |= saved_shaderdb_flag;
215
216        vc4->sample_mask = (1 << VC4_MAX_SAMPLES) - 1;
217
218        return &vc4->base;
219
220fail:
221        pctx->destroy(pctx);
222        return NULL;
223}
224