| /* | |
| * 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__ */ |