src/gallium/drivers/ilo/ilo_cp.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 "intel_winsys.h"
  29
  30 #include "ilo_builder_mi.h"
  31 #include "ilo_shader.h"
  32 #include "ilo_cp.h"
  33
  34 static struct intel_bo *
  35 ilo_cp_end_batch(struct ilo_cp *cp, unsigned *used)
  36 {
  37    struct intel_bo *bo;
  38
  39    ilo_cp_set_owner(cp, NULL, 0);
  40
  41    if (!ilo_builder_batch_used(&cp->builder)) {
  42       ilo_builder_batch_discard(&cp->builder);
  43       return NULL;
  44    }
  45
  46    /* see ilo_cp_space() */
  47    assert(ilo_builder_batch_space(&cp->builder) >= 2);
  48    ilo_builder_batch_mi_batch_buffer_end(&cp->builder);
  49
  50    bo = ilo_builder_end(&cp->builder, used);
  51
  52    /* we have to assume that kernel uploads also failed */
  53    if (!bo)
  54       ilo_shader_cache_invalidate(cp->shader_cache);
  55
  56    return bo;
  57 }
  58
  59 /**
  60  * Flush the command parser and execute the commands.  When the parser buffer
  61  * is empty, the callback is not invoked.
  62  */
  63 void
  64 ilo_cp_flush_internal(struct ilo_cp *cp)
  65 {
  66    const bool do_exec = !(ilo_debug & ILO_DEBUG_NOHW);
  67    struct intel_bo *bo;
  68    unsigned used;
  69    int err;
  70
  71    bo = ilo_cp_end_batch(cp, &used);
  72    if (!bo)
  73       return;
  74
  75    if (likely(do_exec)) {
  76       err = intel_winsys_submit_bo(cp->winsys, cp->ring,
  77             bo, used, cp->render_ctx, cp->one_off_flags);
  78    }
  79    else {
  80       err = 0;
  81    }
  82
  83    cp->one_off_flags = 0;
  84
  85    if (!err) {
  86       if (cp->last_submitted_bo)
  87          intel_bo_unreference(cp->last_submitted_bo);
  88       cp->last_submitted_bo = bo;
  89       intel_bo_reference(cp->last_submitted_bo);
  90
  91       if (cp->flush_callback)
  92          cp->flush_callback(cp, cp->flush_callback_data);
  93    }
  94
  95    ilo_builder_begin(&cp->builder);
  96 }
  97
  98 /**
  99  * Destroy the command parser.
 100  */
 101 void
 102 ilo_cp_destroy(struct ilo_cp *cp)
 103 {
 104    ilo_builder_reset(&cp->builder);
 105
 106    intel_winsys_destroy_context(cp->winsys, cp->render_ctx);
 107    FREE(cp);
 108 }
 109
 110 /**
 111  * Create a command parser.
 112  */
 113 struct ilo_cp *
 114 ilo_cp_create(const struct ilo_dev_info *dev,
 115               struct intel_winsys *winsys,
 116               struct ilo_shader_cache *shc)
 117 {
 118    struct ilo_cp *cp;
 119
 120    cp = CALLOC_STRUCT(ilo_cp);
 121    if (!cp)
 122       return NULL;
 123
 124    cp->winsys = winsys;
 125    cp->shader_cache = shc;
 126    cp->render_ctx = intel_winsys_create_context(winsys);
 127    if (!cp->render_ctx) {
 128       FREE(cp);
 129       return NULL;
 130    }
 131
 132    cp->ring = INTEL_RING_RENDER;
 133
 134    ilo_builder_init(&cp->builder, dev, winsys);
 135
 136    if (!ilo_builder_begin(&cp->builder)) {
 137       ilo_cp_destroy(cp);
 138       return NULL;
 139    }
 140
 141    return cp;
 142 }