src/gallium/drivers/v3d/v3d_context.c

   1 /*
   2  * Copyright © 2014-2017 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/hash_table.h"
  29 #include "util/ralloc.h"
  30 #include "util/u_inlines.h"
  31 #include "util/u_memory.h"
  32 #include "util/u_blitter.h"
  33 #include "util/u_upload_mgr.h"
  34 #include "indices/u_primconvert.h"
  35 #include "pipe/p_screen.h"
  36
  37 #include "v3d_screen.h"
  38 #include "v3d_context.h"
  39 #include "v3d_resource.h"
  40
  41 void
  42 v3d_flush(struct pipe_context *pctx)
  43 {
  44         struct v3d_context *v3d = v3d_context(pctx);
  45
  46         hash_table_foreach(v3d->jobs, entry) {
  47                 struct v3d_job *job = entry->data;
  48                 v3d_job_submit(v3d, job);
  49         }
  50 }
  51
  52 static void
  53 v3d_pipe_flush(struct pipe_context *pctx, struct pipe_fence_handle **fence,
  54                unsigned flags)
  55 {
  56         struct v3d_context *v3d = v3d_context(pctx);
  57
  58         v3d_flush(pctx);
  59
  60         if (fence) {
  61                 struct pipe_screen *screen = pctx->screen;
  62                 struct v3d_fence *f = v3d_fence_create(v3d);
  63                 screen->fence_reference(screen, fence, NULL);
  64                 *fence = (struct pipe_fence_handle *)f;
  65         }
  66 }
  67
  68 static void
  69 v3d_set_debug_callback(struct pipe_context *pctx,
  70                        const struct pipe_debug_callback *cb)
  71 {
  72         struct v3d_context *v3d = v3d_context(pctx);
  73
  74         if (cb)
  75                 v3d->debug = *cb;
  76         else
  77                 memset(&v3d->debug, 0, sizeof(v3d->debug));
  78 }
  79
  80 static void
  81 v3d_invalidate_resource(struct pipe_context *pctx, struct pipe_resource *prsc)
  82 {
  83         struct v3d_context *v3d = v3d_context(pctx);
  84         struct v3d_resource *rsc = v3d_resource(prsc);
  85
  86         rsc->initialized_buffers = 0;
  87
  88         struct hash_entry *entry = _mesa_hash_table_search(v3d->write_jobs,
  89                                                            prsc);
  90         if (!entry)
  91                 return;
  92
  93         struct v3d_job *job = entry->data;
  94         if (job->key.zsbuf && job->key.zsbuf->texture == prsc)
  95                 job->store &= ~(PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL);
  96 }
  97
  98 static void
  99 v3d_context_destroy(struct pipe_context *pctx)
 100 {
 101         struct v3d_context *v3d = v3d_context(pctx);
 102
 103         v3d_flush(pctx);
 104
 105         if (v3d->blitter)
 106                 util_blitter_destroy(v3d->blitter);
 107
 108         if (v3d->primconvert)
 109                 util_primconvert_destroy(v3d->primconvert);
 110
 111         if (v3d->uploader)
 112                 u_upload_destroy(v3d->uploader);
 113         if (v3d->state_uploader)
 114                 u_upload_destroy(v3d->state_uploader);
 115
 116         slab_destroy_child(&v3d->transfer_pool);
 117
 118         pipe_surface_reference(&v3d->framebuffer.cbufs[0], NULL);
 119         pipe_surface_reference(&v3d->framebuffer.zsbuf, NULL);
 120
 121         v3d_program_fini(pctx);
 122
 123         ralloc_free(v3d);
 124 }
 125
 126 struct pipe_context *
 127 v3d_context_create(struct pipe_screen *pscreen, void *priv, unsigned flags)
 128 {
 129         struct v3d_screen *screen = v3d_screen(pscreen);
 130         struct v3d_context *v3d;
 131
 132         /* Prevent dumping of the shaders built during context setup. */
 133         uint32_t saved_shaderdb_flag = V3D_DEBUG & V3D_DEBUG_SHADERDB;
 134         V3D_DEBUG &= ~V3D_DEBUG_SHADERDB;
 135
 136         v3d = rzalloc(NULL, struct v3d_context);
 137         if (!v3d)
 138                 return NULL;
 139         struct pipe_context *pctx = &v3d->base;
 140
 141         v3d->screen = screen;
 142
 143         int ret = drmSyncobjCreate(screen->fd, DRM_SYNCOBJ_CREATE_SIGNALED,
 144                                    &v3d->out_sync);
 145         if (ret) {
 146                 ralloc_free(v3d);
 147                 return NULL;
 148         }
 149
 150         pctx->screen = pscreen;
 151         pctx->priv = priv;
 152         pctx->destroy = v3d_context_destroy;
 153         pctx->flush = v3d_pipe_flush;
 154         pctx->set_debug_callback = v3d_set_debug_callback;
 155         pctx->invalidate_resource = v3d_invalidate_resource;
 156
 157         if (screen->devinfo.ver >= 41) {
 158                 v3d41_draw_init(pctx);
 159                 v3d41_state_init(pctx);
 160         } else {
 161                 v3d33_draw_init(pctx);
 162                 v3d33_state_init(pctx);
 163         }
 164         v3d_program_init(pctx);
 165         v3d_query_init(pctx);
 166         v3d_resource_context_init(pctx);
 167
 168         v3d_job_init(v3d);
 169
 170         v3d->fd = screen->fd;
 171
 172         slab_create_child(&v3d->transfer_pool, &screen->transfer_pool);
 173
 174         v3d->uploader = u_upload_create_default(&v3d->base);
 175         v3d->base.stream_uploader = v3d->uploader;
 176         v3d->base.const_uploader = v3d->uploader;
 177         v3d->state_uploader = u_upload_create(&v3d->base,
 178                                               4096,
 179                                               PIPE_BIND_CONSTANT_BUFFER,
 180                                               PIPE_USAGE_STREAM, 0);
 181
 182         v3d->blitter = util_blitter_create(pctx);
 183         if (!v3d->blitter)
 184                 goto fail;
 185         v3d->blitter->use_index_buffer = true;
 186
 187         v3d->primconvert = util_primconvert_create(pctx,
 188                                                    (1 << PIPE_PRIM_QUADS) - 1);
 189         if (!v3d->primconvert)
 190                 goto fail;
 191
 192         V3D_DEBUG |= saved_shaderdb_flag;
 193
 194         v3d->sample_mask = (1 << VC5_MAX_SAMPLES) - 1;
 195         v3d->active_queries = true;
 196
 197         return &v3d->base;
 198
 199 fail:
 200         pctx->destroy(pctx);
 201         return NULL;
 202 }