src/gallium/state_trackers/clover/core/event.cpp

   1 //
   2 // Copyright 2012 Francisco Jerez
   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 shall be included in
  12 // all copies or substantial portions of the Software.
  13 //
  14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17 // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18 // OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19 // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20 // OTHER DEALINGS IN THE SOFTWARE.
  21 //
  22
  23 #include "core/event.hpp"
  24 #include "pipe/p_screen.h"
  25
  26 using namespace clover;
  27
  28 _cl_event::_cl_event(clover::context &ctx,
  29                      std::vector<clover::event *> deps,
  30                      action action_ok, action action_fail) :
  31    ctx(ctx), __status(0), wait_count(1),
  32    action_ok(action_ok), action_fail(action_fail) {
  33    for (auto ev : deps)
  34       ev->chain(this);
  35 }
  36
  37 _cl_event::~_cl_event() {
  38 }
  39
  40 void
  41 _cl_event::trigger() {
  42    if (!--wait_count) {
  43       action_ok(*this);
  44
  45       while (!__chain.empty()) {
  46          __chain.back()->trigger();
  47          __chain.pop_back();
  48       }
  49    }
  50 }
  51
  52 void
  53 _cl_event::abort(cl_int status) {
  54    __status = status;
  55    action_fail(*this);
  56
  57    while (!__chain.empty()) {
  58       __chain.back()->abort(status);
  59       __chain.pop_back();
  60    }
  61 }
  62
  63 bool
  64 _cl_event::signalled() const {
  65    return !wait_count;
  66 }
  67
  68 void
  69 _cl_event::chain(clover::event *ev) {
  70    if (wait_count) {
  71       ev->wait_count++;
  72       __chain.push_back(ev);
  73       ev->deps.push_back(this);
  74    }
  75 }
  76
  77 hard_event::hard_event(clover::command_queue &q, cl_command_type command,
  78                        std::vector<clover::event *> deps, action action) :
  79    _cl_event(q.ctx, deps, action, [](event &ev){}),
  80    __queue(q), __command(command), __fence(NULL) {
  81    q.sequence(this);
  82    trigger();
  83 }
  84
  85 hard_event::~hard_event() {
  86    pipe_screen *screen = queue()->dev.pipe;
  87    screen->fence_reference(screen, &__fence, NULL);
  88 }
  89
  90 cl_int
  91 hard_event::status() const {
  92    pipe_screen *screen = queue()->dev.pipe;
  93
  94    if (__status < 0)
  95       return __status;
  96
  97    else if (!__fence)
  98       return CL_QUEUED;
  99
 100    else if (!screen->fence_signalled(screen, __fence))
 101       return CL_SUBMITTED;
 102
 103    else
 104       return CL_COMPLETE;
 105 }
 106
 107 cl_command_queue
 108 hard_event::queue() const {
 109    return &__queue;
 110 }
 111
 112 cl_command_type
 113 hard_event::command() const {
 114    return __command;
 115 }
 116
 117 void
 118 hard_event::wait() const {
 119    pipe_screen *screen = queue()->dev.pipe;
 120
 121    if (status() == CL_QUEUED)
 122       queue()->flush();
 123
 124    if (!__fence ||
 125        !screen->fence_finish(screen, __fence, PIPE_TIMEOUT_INFINITE))
 126       throw error(CL_EXEC_STATUS_ERROR_FOR_EVENTS_IN_WAIT_LIST);
 127 }
 128
 129 void
 130 hard_event::fence(pipe_fence_handle *fence) {
 131    pipe_screen *screen = queue()->dev.pipe;
 132    screen->fence_reference(screen, &__fence, fence);
 133 }
 134
 135 soft_event::soft_event(clover::context &ctx,
 136                        std::vector<clover::event *> deps,
 137                        bool __trigger, action action) :
 138    _cl_event(ctx, deps, action, action) {
 139    if (__trigger)
 140       trigger();
 141 }
 142
 143 cl_int
 144 soft_event::status() const {
 145    if (__status < 0)
 146       return __status;
 147
 148    else if (!signalled() ||
 149             any_of([](const ref_ptr<event> &ev) {
 150                   return ev->status() != CL_COMPLETE;
 151                }, deps.begin(), deps.end()))
 152       return CL_SUBMITTED;
 153
 154    else
 155       return CL_COMPLETE;
 156 }
 157
 158 cl_command_queue
 159 soft_event::queue() const {
 160    return NULL;
 161 }
 162
 163 cl_command_type
 164 soft_event::command() const {
 165    return CL_COMMAND_USER;
 166 }
 167
 168 void
 169 soft_event::wait() const {
 170    for (auto ev : deps)
 171       ev->wait();
 172
 173    if (status() != CL_COMPLETE)
 174       throw error(CL_EXEC_STATUS_ERROR_FOR_EVENTS_IN_WAIT_LIST);
 175 }