src/gallium/drivers/vc4/vc4_context.c

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