staging: rtl8192u: remove redundant assignment to pointer crypt
[linux/fpc-iii.git] / arch / arm64 / include / asm / vdso / vsyscall.h
blob0c731bfc7c8c763a1644c98d291be3454b63f760
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __ASM_VDSO_VSYSCALL_H
3 #define __ASM_VDSO_VSYSCALL_H
5 #ifndef __ASSEMBLY__
7 #include <linux/timekeeper_internal.h>
8 #include <vdso/datapage.h>
10 #define VDSO_PRECISION_MASK ~(0xFF00ULL<<48)
12 extern struct vdso_data *vdso_data;
15 * Update the vDSO data page to keep in sync with kernel timekeeping.
17 static __always_inline
18 struct vdso_data *__arm64_get_k_vdso_data(void)
20 return vdso_data;
22 #define __arch_get_k_vdso_data __arm64_get_k_vdso_data
24 static __always_inline
25 int __arm64_get_clock_mode(struct timekeeper *tk)
27 u32 use_syscall = !tk->tkr_mono.clock->archdata.vdso_direct;
29 return use_syscall;
31 #define __arch_get_clock_mode __arm64_get_clock_mode
33 static __always_inline
34 int __arm64_use_vsyscall(struct vdso_data *vdata)
36 return !vdata[CS_HRES_COARSE].clock_mode;
38 #define __arch_use_vsyscall __arm64_use_vsyscall
40 static __always_inline
41 void __arm64_update_vsyscall(struct vdso_data *vdata, struct timekeeper *tk)
43 vdata[CS_HRES_COARSE].mask = VDSO_PRECISION_MASK;
44 vdata[CS_RAW].mask = VDSO_PRECISION_MASK;
46 #define __arch_update_vsyscall __arm64_update_vsyscall
48 /* The asm-generic header needs to be included after the definitions above */
49 #include <asm-generic/vdso/vsyscall.h>
51 #endif /* !__ASSEMBLY__ */
53 #endif /* __ASM_VDSO_VSYSCALL_H */