src/gallium/drivers/ilo/ilo_context.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2012-2013 LunarG, Inc.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Chia-I Wu <olv@lunarg.com>
  26  */
  27
  28 #include "util/u_upload_mgr.h"
  29
  30 #include "ilo_3d.h"
  31 #include "ilo_blit.h"
  32 #include "ilo_blitter.h"
  33 #include "ilo_cp.h"
  34 #include "ilo_gpgpu.h"
  35 #include "ilo_query.h"
  36 #include "ilo_resource.h"
  37 #include "ilo_screen.h"
  38 #include "ilo_shader.h"
  39 #include "ilo_state.h"
  40 #include "ilo_transfer.h"
  41 #include "ilo_video.h"
  42 #include "ilo_context.h"
  43
  44 static void
  45 ilo_context_cp_flushed(struct ilo_cp *cp, void *data)
  46 {
  47    struct ilo_context *ilo = ilo_context(data);
  48
  49    if (ilo->last_cp_bo)
  50       intel_bo_unreference(ilo->last_cp_bo);
  51
  52    /* remember the just flushed bo, on which fences could wait */
  53    ilo->last_cp_bo = cp->bo;
  54    intel_bo_reference(ilo->last_cp_bo);
  55
  56    ilo_3d_cp_flushed(ilo->hw3d);
  57 }
  58
  59 static void
  60 ilo_flush(struct pipe_context *pipe,
  61           struct pipe_fence_handle **f,
  62           unsigned flags)
  63 {
  64    struct ilo_context *ilo = ilo_context(pipe);
  65
  66    if (f) {
  67       struct ilo_fence *fence;
  68
  69       fence = CALLOC_STRUCT(ilo_fence);
  70       if (fence) {
  71          pipe_reference_init(&fence->reference, 1);
  72
  73          /* reference the batch bo that we want to wait on */
  74          if (ilo_cp_empty(ilo->cp))
  75             fence->bo = ilo->last_cp_bo;
  76          else
  77             fence->bo = ilo->cp->bo;
  78
  79          if (fence->bo)
  80             intel_bo_reference(fence->bo);
  81       }
  82
  83       *f = (struct pipe_fence_handle *) fence;
  84    }
  85
  86    ilo_cp_flush(ilo->cp,
  87          (flags & PIPE_FLUSH_END_OF_FRAME) ? "frame end" : "user request");
  88 }
  89
  90 static void
  91 ilo_context_destroy(struct pipe_context *pipe)
  92 {
  93    struct ilo_context *ilo = ilo_context(pipe);
  94
  95    ilo_cleanup_states(ilo);
  96
  97    if (ilo->last_cp_bo)
  98       intel_bo_unreference(ilo->last_cp_bo);
  99
 100    if (ilo->uploader)
 101       u_upload_destroy(ilo->uploader);
 102
 103    if (ilo->blitter)
 104       ilo_blitter_destroy(ilo->blitter);
 105    if (ilo->hw3d)
 106       ilo_3d_destroy(ilo->hw3d);
 107    if (ilo->shader_cache)
 108       ilo_shader_cache_destroy(ilo->shader_cache);
 109    if (ilo->cp)
 110       ilo_cp_destroy(ilo->cp);
 111
 112    util_slab_destroy(&ilo->transfer_mempool);
 113
 114    FREE(ilo);
 115 }
 116
 117 static struct pipe_context *
 118 ilo_context_create(struct pipe_screen *screen, void *priv)
 119 {
 120    struct ilo_screen *is = ilo_screen(screen);
 121    struct ilo_context *ilo;
 122    int cp_size;
 123
 124    ilo = CALLOC_STRUCT(ilo_context);
 125    if (!ilo)
 126       return NULL;
 127
 128    ilo->winsys = is->winsys;
 129    ilo->dev = &is->dev;
 130
 131    /*
 132     * initialize first, otherwise it may not be safe to call
 133     * ilo_context_destroy() on errors
 134     */
 135    util_slab_create(&ilo->transfer_mempool,
 136          sizeof(struct ilo_transfer), 64, UTIL_SLAB_SINGLETHREADED);
 137
 138    /* 8192 DWords */
 139    cp_size = 8192;
 140    if (cp_size * 4 > is->dev.max_batch_size)
 141       cp_size = is->dev.max_batch_size / 4;
 142
 143    ilo->cp = ilo_cp_create(ilo->winsys, cp_size, is->dev.has_llc);
 144    ilo->shader_cache = ilo_shader_cache_create();
 145    if (ilo->cp)
 146       ilo->hw3d = ilo_3d_create(ilo->cp, ilo->dev);
 147
 148    if (!ilo->cp || !ilo->shader_cache || !ilo->hw3d) {
 149       ilo_context_destroy(&ilo->base);
 150       return NULL;
 151    }
 152
 153    ilo_cp_set_flush_callback(ilo->cp,
 154          ilo_context_cp_flushed, (void *) ilo);
 155
 156    ilo->base.screen = screen;
 157    ilo->base.priv = priv;
 158
 159    ilo->base.destroy = ilo_context_destroy;
 160    ilo->base.flush = ilo_flush;
 161
 162    ilo_init_3d_functions(ilo);
 163    ilo_init_query_functions(ilo);
 164    ilo_init_state_functions(ilo);
 165    ilo_init_blit_functions(ilo);
 166    ilo_init_transfer_functions(ilo);
 167    ilo_init_video_functions(ilo);
 168    ilo_init_gpgpu_functions(ilo);
 169
 170    ilo_init_states(ilo);
 171
 172    /*
 173     * These must be called last as u_upload/u_blitter are clients of the pipe
 174     * context.
 175     */
 176    ilo->uploader = u_upload_create(&ilo->base, 1024 * 1024, 16,
 177          PIPE_BIND_CONSTANT_BUFFER | PIPE_BIND_INDEX_BUFFER);
 178    if (!ilo->uploader) {
 179       ilo_context_destroy(&ilo->base);
 180       return NULL;
 181    }
 182
 183    ilo->blitter = ilo_blitter_create(ilo);
 184    if (!ilo->blitter) {
 185       ilo_context_destroy(&ilo->base);
 186       return NULL;
 187    }
 188
 189    return &ilo->base;
 190 }
 191
 192 /**
 193  * Initialize context-related functions.
 194  */
 195 void
 196 ilo_init_context_functions(struct ilo_screen *is)
 197 {
 198    is->base.context_create = ilo_context_create;
 199 }