1 files changed, 174 insertions, 0 deletions
diff --git a/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_sync.c b/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_sync.c
new file mode 100644
index 000000000000..7efae1c74bbe
--- /dev/null
+++ b/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_sync.c
@@ -0,0 +1,174 @@
+/****************************************************************************
+*
+*    Copyright (C) 2005 - 2013 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 <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"
+
+#if gcdANDROID_NATIVE_FENCE_SYNC
+
+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