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
_cl_command_queue(context & ctx,device & dev,cl_command_queue_properties props)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
~_cl_command_queue()40 _cl_command_queue::~_cl_command_queue() {
41 pipe->destroy(pipe);
42 }
43
44 void
flush()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
sequence(clover::hard_event * ev)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