src/gallium/state_trackers/clover/core/queue.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 <algorithm>
  24
  25 #include "core/queue.hpp"
  26 #include "core/event.hpp"
  27 #include "pipe/p_screen.h"
  28 #include "pipe/p_context.h"
  29
  30 using namespace clover;
  31
  32 _cl_command_queue::_cl_command_queue(context &ctx, device &dev,
  33                                      cl_command_queue_properties props) :
  34    ctx(ctx), dev(dev), _props(props) {
  35    pipe = dev.pipe->context_create(dev.pipe, NULL);
  36    if (!pipe)
  37       throw error(CL_INVALID_DEVICE);
  38 }
  39
  40 _cl_command_queue::~_cl_command_queue() {
  41    pipe->destroy(pipe);
  42 }
  43
  44 void
  45 _cl_command_queue::flush() {
  46    pipe_screen *screen = dev.pipe;
  47    pipe_fence_handle *fence = NULL;
  48
  49    if (!queued_events.empty()) {
  50       // Find out which events have already been signalled.
  51       auto first = queued_events.begin();
  52       auto last = std::find_if(queued_events.begin(), queued_events.end(),
  53                                [](event_ptr &ev) { return !ev->signalled(); });
  54
  55       // Flush and fence them.
  56       pipe->flush(pipe, &fence, 0);
  57       std::for_each(first, last, [&](event_ptr &ev) { ev->fence(fence); });
  58       screen->fence_reference(screen, &fence, NULL);
  59       queued_events.erase(first, last);
  60    }
  61 }
  62
  63 cl_command_queue_properties
  64 _cl_command_queue::props() const {
  65    return _props;
  66 }
  67
  68 bool
  69 _cl_command_queue::profiling_enabled() const {
  70    return _props & CL_QUEUE_PROFILING_ENABLE;
  71 }
  72
  73 void
  74 _cl_command_queue::sequence(clover::hard_event *ev) {
  75    if (!queued_events.empty())
  76       queued_events.back()->chain(ev);
  77
  78    queued_events.push_back(ev);
  79 }