| /**************************************************************************** |
| * |
| * Copyright (C) 2005 - 2014 by Vivante Corp. |
| * |
| * 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., 675 Mass Ave, Cambridge, MA 02139, USA. |
| * |
| *****************************************************************************/ |
| |
| |
| #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; |
| obj = (struct viv_sync_timeline *) sync_pt->parent; |
| |
| /* 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; |
| obj = (struct viv_sync_timeline *)sync_pt->parent; |
| |
| 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; |
| obj = (struct viv_sync_timeline *) sync_pt->parent; |
| |
| 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 |