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- /*
- * Copyright 2012 Tilera Corporation. All Rights Reserved.
- *
- * 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, version 2.
- *
- * 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, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for
- * more details.
- */
- #ifndef __TILE_VDSO_H__
- #define __TILE_VDSO_H__
- #include <linux/seqlock.h>
- #include <linux/types.h>
- /*
- * Note about the vdso_data structure:
- *
- * NEVER USE THEM IN USERSPACE CODE DIRECTLY. The layout of the
- * structure is supposed to be known only to the function in the vdso
- * itself and may change without notice.
- */
- struct vdso_data {
- seqcount_t tz_seq; /* Timezone seqlock */
- seqcount_t tb_seq; /* Timebase seqlock */
- __u64 cycle_last; /* TOD clock for xtime */
- __u64 mask; /* Cycle mask */
- __u32 mult; /* Cycle to nanosecond multiplier */
- __u32 shift; /* Cycle to nanosecond divisor (power of two) */
- __u64 wall_time_sec;
- __u64 wall_time_snsec;
- __u64 monotonic_time_sec;
- __u64 monotonic_time_snsec;
- __u64 wall_time_coarse_sec;
- __u64 wall_time_coarse_nsec;
- __u64 monotonic_time_coarse_sec;
- __u64 monotonic_time_coarse_nsec;
- __u32 tz_minuteswest; /* Minutes west of Greenwich */
- __u32 tz_dsttime; /* Type of dst correction */
- };
- extern struct vdso_data *vdso_data;
- /* __vdso_rt_sigreturn is defined with the addresses in the vdso page. */
- extern void __vdso_rt_sigreturn(void);
- extern int setup_vdso_pages(void);
- #endif /* __TILE_VDSO_H__ */
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