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55 lines
1.8 KiB
55 lines
1.8 KiB
/* |
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* Copyright 2012 Tilera Corporation. All Rights Reserved. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation, version 2. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or |
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* NON INFRINGEMENT. See the GNU General Public License for |
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* more details. |
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*/ |
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#ifndef __TILE_VDSO_H__ |
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#define __TILE_VDSO_H__ |
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#include <linux/seqlock.h> |
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#include <linux/types.h> |
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/* |
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* Note about the vdso_data structure: |
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* |
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* NEVER USE THEM IN USERSPACE CODE DIRECTLY. The layout of the |
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* structure is supposed to be known only to the function in the vdso |
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* itself and may change without notice. |
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*/ |
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struct vdso_data { |
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seqcount_t tz_seq; /* Timezone seqlock */ |
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seqcount_t tb_seq; /* Timebase seqlock */ |
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__u64 cycle_last; /* TOD clock for xtime */ |
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__u64 mask; /* Cycle mask */ |
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__u32 mult; /* Cycle to nanosecond multiplier */ |
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__u32 shift; /* Cycle to nanosecond divisor (power of two) */ |
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__u64 wall_time_sec; |
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__u64 wall_time_snsec; |
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__u64 monotonic_time_sec; |
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__u64 monotonic_time_snsec; |
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__u64 wall_time_coarse_sec; |
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__u64 wall_time_coarse_nsec; |
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__u64 monotonic_time_coarse_sec; |
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__u64 monotonic_time_coarse_nsec; |
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__u32 tz_minuteswest; /* Minutes west of Greenwich */ |
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__u32 tz_dsttime; /* Type of dst correction */ |
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}; |
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extern struct vdso_data *vdso_data; |
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/* __vdso_rt_sigreturn is defined with the addresses in the vdso page. */ |
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extern void __vdso_rt_sigreturn(void); |
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extern int setup_vdso_pages(void); |
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#endif /* __TILE_VDSO_H__ */
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