src/gallium/drivers/swr/swr_fence_work.cpp

   1 /****************************************************************************
   2  * Copyright (C) 2016 Intel Corporation.   All Rights Reserved.
   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"),
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   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
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  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  ***************************************************************************/
  23
  24 #include "swr_context.h"
  25 #include "swr_fence.h"
  26
  27 #include "util/u_inlines.h"
  28 #include "util/u_memory.h"
  29
  30 /*
  31  * Called by swr_fence_cb to complete the work queue
  32  */
  33 void
  34 swr_fence_do_work(struct swr_fence *fence)
  35 {
  36    struct swr_fence_work *work, *tmp;
  37
  38    if (fence->work.head.next) {
  39       work = fence->work.head.next;
  40       /* Immediately clear the head so any new work gets added to a new work
  41        * queue */
  42       p_atomic_set(&fence->work.head.next, 0);
  43       p_atomic_set(&fence->work.tail, &fence->work.head);
  44       p_atomic_set(&fence->work.count, 0);
  45
  46       do {
  47          tmp = work->next;
  48          work->callback(work);
  49          FREE(work);
  50          work = tmp;
  51       } while(work);
  52    }
  53 }
  54
  55
  56 /*
  57  * Called by one of the specialized work routines below
  58  */
  59 static inline void
  60 swr_add_fence_work(struct pipe_fence_handle *fh,
  61                    struct swr_fence_work *work)
  62 {
  63    /* If no fence, just do the work now */
  64    if (!fh) {
  65       work->callback(work);
  66       FREE(work);
  67       return;
  68    }
  69
  70    struct swr_fence *fence  = swr_fence(fh);
  71    p_atomic_set(&fence->work.tail->next, work);
  72    p_atomic_set(&fence->work.tail, work);
  73    p_atomic_inc(&fence->work.count);
  74 }
  75
  76
  77 /*
  78  * Generic free/free_aligned, and delete vs/fs
  79  */
  80 template<bool aligned_free>
  81 static void
  82 swr_free_cb(struct swr_fence_work *work)
  83 {
  84    if (aligned_free)
  85       AlignedFree(work->free.data);
  86    else
  87       FREE(work->free.data);
  88 }
  89
  90 static void
  91 swr_delete_vs_cb(struct swr_fence_work *work)
  92 {
  93    delete work->free.swr_vs;
  94 }
  95
  96 static void
  97 swr_delete_fs_cb(struct swr_fence_work *work)
  98 {
  99    delete work->free.swr_fs;
 100 }
 101
 102 static void
 103 swr_delete_gs_cb(struct swr_fence_work *work)
 104 {
 105    delete work->free.swr_gs;
 106 }
 107
 108 bool
 109 swr_fence_work_free(struct pipe_fence_handle *fence, void *data,
 110                     bool aligned_free)
 111 {
 112    struct swr_fence_work *work = CALLOC_STRUCT(swr_fence_work);
 113    if (!work)
 114       return false;
 115    if (aligned_free)
 116       work->callback = swr_free_cb<true>;
 117    else
 118       work->callback = swr_free_cb<false>;
 119    work->free.data = data;
 120
 121    swr_add_fence_work(fence, work);
 122
 123    return true;
 124 }
 125
 126 bool
 127 swr_fence_work_delete_vs(struct pipe_fence_handle *fence,
 128                          struct swr_vertex_shader *swr_vs)
 129 {
 130    struct swr_fence_work *work = CALLOC_STRUCT(swr_fence_work);
 131    if (!work)
 132       return false;
 133    work->callback = swr_delete_vs_cb;
 134    work->free.swr_vs = swr_vs;
 135
 136    swr_add_fence_work(fence, work);
 137
 138    return true;
 139 }
 140
 141 bool
 142 swr_fence_work_delete_fs(struct pipe_fence_handle *fence,
 143                          struct swr_fragment_shader *swr_fs)
 144 {
 145    struct swr_fence_work *work = CALLOC_STRUCT(swr_fence_work);
 146    if (!work)
 147       return false;
 148    work->callback = swr_delete_fs_cb;
 149    work->free.swr_fs = swr_fs;
 150
 151    swr_add_fence_work(fence, work);
 152
 153    return true;
 154 }
 155
 156 bool
 157 swr_fence_work_delete_gs(struct pipe_fence_handle *fence,
 158                          struct swr_geometry_shader *swr_gs)
 159 {
 160    struct swr_fence_work *work = CALLOC_STRUCT(swr_fence_work);
 161    if (!work)
 162       return false;
 163    work->callback = swr_delete_gs_cb;
 164    work->free.swr_gs = swr_gs;
 165
 166    swr_add_fence_work(fence, work);
 167
 168    return true;
 169 }