1/* SPDX-License-Identifier: GPL-2.0 */
 2/* x86-specific clocksource additions */
 3
 4#ifndef _ASM_X86_CLOCKSOURCE_H
 5#define _ASM_X86_CLOCKSOURCE_H
 6
 7#define VCLOCK_NONE	0	/* No vDSO clock available.		*/
 8#define VCLOCK_TSC	1	/* vDSO should use vread_tsc.		*/
 9#define VCLOCK_PVCLOCK	2	/* vDSO should use vread_pvclock.	*/
10#define VCLOCK_HVCLOCK	3	/* vDSO should use vread_hvclock.	*/
11#define VCLOCK_MAX	3
12
13struct arch_clocksource_data {
14	int vclock_mode;
15};
 
 
 
 
 
 
 
 
16
17#endif /* _ASM_X86_CLOCKSOURCE_H */

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/* x86-specific clocksource additions */
 3
 4#ifndef _ASM_X86_CLOCKSOURCE_H
 5#define _ASM_X86_CLOCKSOURCE_H
 6
 7#include <asm/vdso/clocksource.h>
 
 
 
 
 8
 9extern unsigned int vclocks_used;
10
11static inline bool vclock_was_used(int vclock)
12{
13	return READ_ONCE(vclocks_used) & (1U << vclock);
14}
15
16static inline void vclocks_set_used(unsigned int which)
17{
18	WRITE_ONCE(vclocks_used, READ_ONCE(vclocks_used) | (1 << which));
19}
20
21#endif /* _ASM_X86_CLOCKSOURCE_H */