diff options
Diffstat (limited to 'arch/s390/include/asm/vdso.h')
| -rw-r--r-- | arch/s390/include/asm/vdso.h | 50 |
1 files changed, 7 insertions, 43 deletions
diff --git a/arch/s390/include/asm/vdso.h b/arch/s390/include/asm/vdso.h index 88bdc477a843..8e2fffa0ca68 100644 --- a/arch/s390/include/asm/vdso.h +++ b/arch/s390/include/asm/vdso.h @@ -1,53 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __S390_VDSO_H__ #define __S390_VDSO_H__ -/* Default link addresses for the vDSOs */ -#define VDSO32_LBASE 0 -#define VDSO64_LBASE 0 +#include <vdso/datapage.h> -#define VDSO_VERSION_STRING LINUX_2.6.29 - -#ifndef __ASSEMBLY__ +#ifndef __ASSEMBLER__ -/* - * Note about the vdso_data and vdso_per_cpu_data structures: - * - * 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. - */ +int vdso_getcpu_init(void); -struct vdso_data { - __u64 tb_update_count; /* Timebase atomicity ctr 0x00 */ - __u64 xtime_tod_stamp; /* TOD clock for xtime 0x08 */ - __u64 xtime_clock_sec; /* Kernel time 0x10 */ - __u64 xtime_clock_nsec; /* 0x18 */ - __u64 xtime_coarse_sec; /* Coarse kernel time 0x20 */ - __u64 xtime_coarse_nsec; /* 0x28 */ - __u64 wtom_clock_sec; /* Wall to monotonic clock 0x30 */ - __u64 wtom_clock_nsec; /* 0x38 */ - __u64 wtom_coarse_sec; /* Coarse wall to monotonic 0x40 */ - __u64 wtom_coarse_nsec; /* 0x48 */ - __u32 tz_minuteswest; /* Minutes west of Greenwich 0x50 */ - __u32 tz_dsttime; /* Type of dst correction 0x54 */ - __u32 ectg_available; /* ECTG instruction present 0x58 */ - __u32 tk_mult; /* Mult. used for xtime_nsec 0x5c */ - __u32 tk_shift; /* Shift used for xtime_nsec 0x60 */ - __u32 ts_dir; /* TOD steering direction 0x64 */ - __u64 ts_end; /* TOD steering end 0x68 */ -}; +#endif /* __ASSEMBLER__ */ -struct vdso_per_cpu_data { - __u64 ectg_timer_base; - __u64 ectg_user_time; - __u32 cpu_nr; - __u32 node_id; -}; +#define __VDSO_PAGES 4 -extern struct vdso_data *vdso_data; - -int vdso_alloc_per_cpu(struct lowcore *lowcore); -void vdso_free_per_cpu(struct lowcore *lowcore); +#define VDSO_VERSION_STRING LINUX_2.6.29 -#endif /* __ASSEMBLY__ */ #endif /* __S390_VDSO_H__ */ |