1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ASM_VDSO_VSYSCALL_H
3 #define __ASM_VDSO_VSYSCALL_H
4
5 #define __VDSO_RND_DATA_OFFSET 768
6
7 #ifndef __ASSEMBLY__
8
9 #include <linux/hrtimer.h>
10 #include <linux/timekeeper_internal.h>
11 #include <vdso/datapage.h>
12 #include <asm/vdso.h>
13
14 enum vvar_pages {
15 VVAR_DATA_PAGE_OFFSET,
16 VVAR_TIMENS_PAGE_OFFSET,
17 VVAR_NR_PAGES
18 };
19
20 /*
21 * Update the vDSO data page to keep in sync with kernel timekeeping.
22 */
23
24 static __always_inline struct vdso_data *__s390_get_k_vdso_data(void)
25 {
26 return vdso_data;
27 }
28 #define __arch_get_k_vdso_data __s390_get_k_vdso_data
29
30 static __always_inline struct vdso_rng_data *__s390_get_k_vdso_rnd_data(void)
31 {
32 return (void *)vdso_data + __VDSO_RND_DATA_OFFSET;
33 }
34 #define __arch_get_k_vdso_rng_data __s390_get_k_vdso_rnd_data
35
36 /* The asm-generic header needs to be included after the definitions above */
37 #include <asm-generic/vdso/vsyscall.h>
38
39 #endif /* !__ASSEMBLY__ */
40
41 #endif /* __ASM_VDSO_VSYSCALL_H */
42
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