/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ASM_VDSO_VSYSCALL_H #define __ASM_VDSO_VSYSCALL_H #ifndef __ASSEMBLY__ #include <linux/hrtimer.h> #include <linux/timekeeper_internal.h> #include <vdso/datapage.h> #include <asm/vgtod.h> #include <asm/vvar.h> int vclocks_used __read_mostly; DEFINE_VVAR(struct vdso_data, _vdso_data); /* * Update the vDSO data page to keep in sync with kernel timekeeping. */ static __always_inline struct vdso_data *__x86_get_k_vdso_data(void) { return _vdso_data; } #define __arch_get_k_vdso_data __x86_get_k_vdso_data static __always_inline int __x86_get_clock_mode(struct timekeeper *tk) { int vclock_mode = tk->tkr_mono.clock->archdata.vclock_mode; /* Mark the new vclock used. */ BUILD_BUG_ON(VCLOCK_MAX >= 32); WRITE_ONCE(vclocks_used, READ_ONCE(vclocks_used) | (1 << vclock_mode)); return vclock_mode; } #define __arch_get_clock_mode __x86_get_clock_mode /* The asm-generic header needs to be included after the definitions above */ #include <asm-generic/vdso/vsyscall.h> #endif /* !__ASSEMBLY__ */ #endif /* __ASM_VDSO_VSYSCALL_H */