diff options
author | Erik Gilling <konkers@android.com> | 2013-03-01 00:42:58 (GMT) |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-03-04 09:40:08 (GMT) |
commit | 9d1906e61dda982070e3910a04d9cce050f7f1a4 (patch) | |
tree | 2efc0efecd0afe6b35358ec35b9ce2e712259a24 /drivers/staging/android/sw_sync.h | |
parent | 7ad530bf2499c702a6dcbb279cf78b76845ed584 (diff) | |
download | linux-fsl-qoriq-9d1906e61dda982070e3910a04d9cce050f7f1a4.tar.xz |
staging: sw_sync: Add cpu based sync driver
Adds a base sync driver that uses the cpu for serialization.
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Cc: Erik Gilling <konkers@android.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Rob Clark <robclark@gmail.com>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: dri-devel@lists.freedesktop.org
Cc: Android Kernel Team <kernel-team@android.com>
Signed-off-by: Erik Gilling <konkers@android.com>
[jstultz: Add commit message, whitespace fixes and move to
staging directory]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/android/sw_sync.h')
-rw-r--r-- | drivers/staging/android/sw_sync.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/staging/android/sw_sync.h b/drivers/staging/android/sw_sync.h new file mode 100644 index 0000000..585040b --- /dev/null +++ b/drivers/staging/android/sw_sync.h @@ -0,0 +1,58 @@ +/* + * include/linux/sw_sync.h + * + * Copyright (C) 2012 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. + * + */ + +#ifndef _LINUX_SW_SYNC_H +#define _LINUX_SW_SYNC_H + +#include <linux/types.h> + +#ifdef __KERNEL__ + +#include "sync.h" + +struct sw_sync_timeline { + struct sync_timeline obj; + + u32 value; +}; + +struct sw_sync_pt { + struct sync_pt pt; + + u32 value; +}; + +struct sw_sync_timeline *sw_sync_timeline_create(const char *name); +void sw_sync_timeline_inc(struct sw_sync_timeline *obj, u32 inc); + +struct sync_pt *sw_sync_pt_create(struct sw_sync_timeline *obj, u32 value); + +#endif /* __KERNEL __ */ + +struct sw_sync_create_fence_data { + __u32 value; + char name[32]; + __s32 fence; /* fd of new fence */ +}; + +#define SW_SYNC_IOC_MAGIC 'W' + +#define SW_SYNC_IOC_CREATE_FENCE _IOWR(SW_SYNC_IOC_MAGIC, 0,\ + struct sw_sync_create_fence_data) +#define SW_SYNC_IOC_INC _IOW(SW_SYNC_IOC_MAGIC, 1, __u32) + + +#endif /* _LINUX_SW_SYNC_H */ |