Cregit: Linux 6.13: vsyscall.h

Contributors: 7
Author	Tokens	Token Proportion	Commits	Commit Proportion
Thomas Weißschuh	34	35.79%	3	30.00%
Vincenzo Frascino	33	34.74%	1	10.00%
Christophe Leroy	12	12.63%	1	10.00%
Marcelo Tosatti	6	6.32%	1	10.00%
Andrew Lutomirski	5	5.26%	2	20.00%
Andi Kleen	4	4.21%	1	10.00%
Greg Kroah-Hartman	1	1.05%	1	10.00%
Total	95		10

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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_VDSO_VSYSCALL_H
#define __ASM_VDSO_VSYSCALL_H

#define __VDSO_RND_DATA_OFFSET  640
#define __VVAR_PAGES	4

#define VDSO_NR_VCLOCK_PAGES	2
#define VDSO_PAGE_PVCLOCK_OFFSET	0
#define VDSO_PAGE_HVCLOCK_OFFSET	1

#ifndef __ASSEMBLY__

#include <vdso/datapage.h>
#include <asm/vgtod.h>

extern 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
struct vdso_rng_data *__x86_get_k_vdso_rng_data(void)
{
	return (void *)vdso_data + __VDSO_RND_DATA_OFFSET;
}
#define __arch_get_k_vdso_rng_data __x86_get_k_vdso_rng_data

/* 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 */