12ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel/* 22ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* Copyright (c) 2015, The Linux Foundation. All rights reserved. 32ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* 42ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* Redistribution and use in source and binary forms, with or without 52ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* modification, are permitted provided that the following conditions are 62ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* met: 72ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* * Redistributions of source code must retain the above copyright 82ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* notice, this list of conditions and the following disclaimer. 92ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* * Redistributions in binary form must reproduce the above 102ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* copyright notice, this list of conditions and the following 112ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* disclaimer in the documentation and/or other materials provided 122ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* with the distribution. 132ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* * Neither the name of The Linux Foundation nor the names of its 142ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* contributors may be used to endorse or promote products derived 152ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* from this software without specific prior written permission. 162ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* 172ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 182ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 192ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 202ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 212ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 222ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 232ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 242ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 252ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 262ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 272ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 282ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel*/ 292ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel 302ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel#include <sync/sync.h> 312ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel#include <utils/constants.h> 322ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel#include <utils/debug.h> 332ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel 342ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel#include "hwc_debugger.h" 352ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel#include "hwc_buffer_sync_handler.h" 362ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel 372ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel#define __CLASS__ "HWCBufferSyncHandler" 382ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel 392ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudelnamespace sdm { 402ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel 412ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry StrudelDisplayError HWCBufferSyncHandler::SyncWait(int fd) { 422ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel int error = 0; 432ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel 442ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel if (fd >= 0) { 452ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel error = sync_wait(fd, 1000); 462ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel if (error < 0) { 472ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel DLOGE("sync_wait error errno = %d, desc = %s", errno, strerror(errno)); 482ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel return kErrorTimeOut; 492ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel } 502ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel } 512ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel 522ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel return kErrorNone; 532ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel} 542ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel 552ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry StrudelDisplayError HWCBufferSyncHandler::SyncMerge(int fd1, int fd2, int *merged_fd) { 562ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel DisplayError error = kErrorNone; 572ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel 582ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel // Merge the two fences. In the case where one of the fences is not a 592ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel // valid fence (e.g. NO_FENCE) merge the one valid fence with itself so 602ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel // that a new fence with the given name is created. 612ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel // TODO(user): "SyncMerge"string should be replaced with user-defined string to represent 622ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel // why it is merged. 632ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel if (fd1 >= 0 && fd2 >= 0) { 642ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel *merged_fd = sync_merge("SyncMerge", fd1, fd2); 652ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel } else if (fd1 >= 0) { 662ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel *merged_fd = sync_merge("SyncMerge", fd1, fd1); 672ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel } else if (fd2 >= 0) { 682ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel *merged_fd = sync_merge("SyncMerge", fd2, fd2); 692ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel } else { 702ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel DLOGE("Invalid arguments passed"); 712ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel return kErrorParameters; 722ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel } 732ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel 742ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel if (*merged_fd == -1) { 752ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel DLOGE("Sync merge error! fd1 %d fd2 %d", fd1, fd2); 762ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel error = kErrorFileDescriptor; 772ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel } 782ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel 792ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel return error; 802ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel} 812ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel 822ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudelbool HWCBufferSyncHandler::IsSyncSignaled(int fd) { 832ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel if (sync_wait(fd, 0) < 0) { 842ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel return false; 852ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel } else { 862ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel return true; 872ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel } 882ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel} 892ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel 902ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel} // namespace sdm 912ebc25b87caae537b8cd97beb8a86a7ff5f0cdf4Thierry Strudel 92