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 "core/queue.hpp"
  24 #include "core/event.hpp"
  25 #include "pipe/p_screen.h"
  26 #include "pipe/p_context.h"
  27
  28 using namespace clover;
  29
  30 command_queue::command_queue(clover::context &ctx, clover::device &dev,
  31                              cl_command_queue_properties props) :
  32    context(ctx), device(dev), props(props) {
  33    pipe = dev.pipe->context_create(dev.pipe, NULL, PIPE_CONTEXT_COMPUTE_ONLY);
  34    if (!pipe)
  35       throw error(CL_INVALID_DEVICE);
  36 }
  37
  38 command_queue::~command_queue() {
  39    pipe->destroy(pipe);
  40 }
  41
  42 void
  43 command_queue::flush() {
  44    pipe_screen *screen = device().pipe;
  45    pipe_fence_handle *fence = NULL;
  46
  47    std::lock_guard<std::mutex> lock(queued_events_mutex);
  48    if (!queued_events.empty()) {
  49       pipe->flush(pipe, &fence, 0);
  50
  51       while (!queued_events.empty() &&
  52              queued_events.front()().signalled()) {
  53          queued_events.front()().fence(fence);
  54          queued_events.pop_front();
  55       }
  56
  57       screen->fence_reference(screen, &fence, NULL);
  58    }
  59 }
  60
  61 cl_command_queue_properties
  62 command_queue::properties() const {
  63    return props;
  64 }
  65
  66 bool
  67 command_queue::profiling_enabled() const {
  68    return props & CL_QUEUE_PROFILING_ENABLE;
  69 }
  70
  71 void
  72 command_queue::sequence(hard_event &ev) {
  73    std::lock_guard<std::mutex> lock(queued_events_mutex);
  74    if (!queued_events.empty())
  75       queued_events.back()().chain(ev);
  76
  77    queued_events.push_back(ev);
  78 }