/* SPDX-License-Identifier: GPL-2.0 */
|
#ifndef __ASM_VDSO_VSYSCALL_H
|
#define __ASM_VDSO_VSYSCALL_H
|
|
#ifndef __ASSEMBLY__
|
|
#include <linux/timekeeper_internal.h>
|
#include <vdso/datapage.h>
|
|
#define VDSO_PRECISION_MASK ~(0xFF00ULL<<48)
|
|
extern struct vdso_data *vdso_data;
|
|
/*
|
* Update the vDSO data page to keep in sync with kernel timekeeping.
|
*/
|
static __always_inline
|
struct vdso_data *__arm64_get_k_vdso_data(void)
|
{
|
return vdso_data;
|
}
|
#define __arch_get_k_vdso_data __arm64_get_k_vdso_data
|
|
static __always_inline
|
void __arm64_update_vsyscall(struct vdso_data *vdata, struct timekeeper *tk)
|
{
|
vdata[CS_HRES_COARSE].mask = VDSO_PRECISION_MASK;
|
vdata[CS_RAW].mask = VDSO_PRECISION_MASK;
|
}
|
#define __arch_update_vsyscall __arm64_update_vsyscall
|
|
/* 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 */
|
