| /**************************************************************************** |
| * |
| * The MIT License (MIT) |
| * |
| * Copyright (c) 2014 - 2016 Vivante Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| * DEALINGS IN THE SOFTWARE. |
| * |
| ***************************************************************************** |
| * |
| * The GPL License (GPL) |
| * |
| * Copyright (C) 2014 - 2016 Vivante Corporation |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| * |
| ***************************************************************************** |
| * |
| * Note: This software is released under dual MIT and GPL licenses. A |
| * recipient may use this file under the terms of either the MIT license or |
| * GPL License. If you wish to use only one license not the other, you can |
| * indicate your decision by deleting one of the above license notices in your |
| * version of this file. |
| * |
| *****************************************************************************/ |
| |
| |
| #include <gc_hal.h> |
| #include <gc_hal_base.h> |
| |
| #if gcdANDROID_NATIVE_FENCE_SYNC |
| |
| #include <linux/kernel.h> |
| #include <linux/file.h> |
| #include <linux/fs.h> |
| #include <linux/miscdevice.h> |
| #include <linux/module.h> |
| #include <linux/syscalls.h> |
| #include <linux/uaccess.h> |
| |
| #include "gc_hal_kernel_sync.h" |
| |
| static struct sync_pt * |
| viv_sync_pt_dup( |
| struct sync_pt * sync_pt |
| ) |
| { |
| gceSTATUS status; |
| struct viv_sync_pt *pt; |
| struct viv_sync_pt *src; |
| struct viv_sync_timeline *obj; |
| |
| src = (struct viv_sync_pt *) sync_pt; |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,17,0) |
| obj = (struct viv_sync_timeline *) sync_pt_parent(sync_pt); |
| #else |
| obj = (struct viv_sync_timeline *) sync_pt->parent; |
| #endif |
| |
| /* Create the new sync_pt. */ |
| pt = (struct viv_sync_pt *) |
| sync_pt_create(&obj->obj, sizeof(struct viv_sync_pt)); |
| |
| pt->stamp = src->stamp; |
| pt->sync = src->sync; |
| |
| /* Reference sync point. */ |
| status = gckOS_ReferenceSyncPoint(obj->os, pt->sync); |
| |
| if (gcmIS_ERROR(status)) |
| { |
| sync_pt_free((struct sync_pt *)pt); |
| return NULL; |
| } |
| |
| return (struct sync_pt *)pt; |
| } |
| |
| static int |
| viv_sync_pt_has_signaled( |
| struct sync_pt * sync_pt |
| ) |
| { |
| gceSTATUS status; |
| gctBOOL state; |
| struct viv_sync_pt * pt; |
| struct viv_sync_timeline * obj; |
| |
| pt = (struct viv_sync_pt *)sync_pt; |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,17,0) |
| obj = (struct viv_sync_timeline *) sync_pt_parent(sync_pt); |
| #else |
| obj = (struct viv_sync_timeline *)sync_pt->parent; |
| #endif |
| |
| status = gckOS_QuerySyncPoint(obj->os, pt->sync, &state); |
| |
| if (gcmIS_ERROR(status)) |
| { |
| /* Error. */ |
| return -1; |
| } |
| |
| return state; |
| } |
| |
| static int |
| viv_sync_pt_compare( |
| struct sync_pt * a, |
| struct sync_pt * b |
| ) |
| { |
| int ret; |
| struct viv_sync_pt * pt1 = (struct viv_sync_pt *) a; |
| struct viv_sync_pt * pt2 = (struct viv_sync_pt *) b; |
| |
| ret = (pt1->stamp < pt2->stamp) ? -1 |
| : (pt1->stamp == pt2->stamp) ? 0 |
| : 1; |
| |
| return ret; |
| } |
| |
| static void |
| viv_sync_pt_free( |
| struct sync_pt * sync_pt |
| ) |
| { |
| struct viv_sync_pt * pt; |
| struct viv_sync_timeline * obj; |
| |
| pt = (struct viv_sync_pt *) sync_pt; |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,17,0) |
| obj = (struct viv_sync_timeline *) sync_pt_parent(sync_pt); |
| #else |
| obj = (struct viv_sync_timeline *)sync_pt->parent; |
| #endif |
| |
| gckOS_DestroySyncPoint(obj->os, pt->sync); |
| } |
| |
| static struct sync_timeline_ops viv_timeline_ops = |
| { |
| .driver_name = "viv_sync", |
| .dup = viv_sync_pt_dup, |
| .has_signaled = viv_sync_pt_has_signaled, |
| .compare = viv_sync_pt_compare, |
| .free_pt = viv_sync_pt_free, |
| }; |
| |
| struct viv_sync_timeline * |
| viv_sync_timeline_create( |
| const char * name, |
| gckOS os |
| ) |
| { |
| struct viv_sync_timeline * obj; |
| |
| obj = (struct viv_sync_timeline *) |
| sync_timeline_create(&viv_timeline_ops, sizeof(struct viv_sync_timeline), name); |
| |
| obj->os = os; |
| obj->stamp = 0; |
| |
| return obj; |
| } |
| |
| struct sync_pt * |
| viv_sync_pt_create( |
| struct viv_sync_timeline * obj, |
| gctSYNC_POINT SyncPoint |
| ) |
| { |
| gceSTATUS status; |
| struct viv_sync_pt * pt; |
| |
| pt = (struct viv_sync_pt *) |
| sync_pt_create(&obj->obj, sizeof(struct viv_sync_pt)); |
| |
| pt->stamp = obj->stamp++; |
| pt->sync = SyncPoint; |
| |
| /* Dup signal. */ |
| status = gckOS_ReferenceSyncPoint(obj->os, SyncPoint); |
| |
| if (gcmIS_ERROR(status)) |
| { |
| sync_pt_free((struct sync_pt *)pt); |
| return NULL; |
| } |
| |
| return (struct sync_pt *) pt; |
| } |
| |
| #endif |