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 BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 18 // WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF 19 // OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 20 // 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); 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 void 64 _cl_command_queue::sequence(clover::hard_event *ev) { 65 if (!queued_events.empty()) 66 queued_events.back()->chain(ev); 67 68 queued_events.push_back(ev); 69 } 70
