mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 12:43:55 +08:00
7460ed2844
Cleanup and re-enable vsyscall gettimeofday using the generic clocksource infrastructure. [akpm@osdl.org: cleanup] Signed-off-by: John Stultz <johnstul@us.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andi Kleen <ak@muc.de> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
#ifndef _ASM_X86_64_VSYSCALL_H_
|
|
#define _ASM_X86_64_VSYSCALL_H_
|
|
|
|
enum vsyscall_num {
|
|
__NR_vgettimeofday,
|
|
__NR_vtime,
|
|
__NR_vgetcpu,
|
|
};
|
|
|
|
#define VSYSCALL_START (-10UL << 20)
|
|
#define VSYSCALL_SIZE 1024
|
|
#define VSYSCALL_END (-2UL << 20)
|
|
#define VSYSCALL_MAPPED_PAGES 1
|
|
#define VSYSCALL_ADDR(vsyscall_nr) (VSYSCALL_START+VSYSCALL_SIZE*(vsyscall_nr))
|
|
|
|
#ifdef __KERNEL__
|
|
#include <linux/seqlock.h>
|
|
|
|
#define __section_vgetcpu_mode __attribute__ ((unused, __section__ (".vgetcpu_mode"), aligned(16)))
|
|
#define __section_jiffies __attribute__ ((unused, __section__ (".jiffies"), aligned(16)))
|
|
|
|
/* Definitions for CONFIG_GENERIC_TIME definitions */
|
|
#define __section_vsyscall_gtod_data __attribute__ \
|
|
((unused, __section__ (".vsyscall_gtod_data"),aligned(16)))
|
|
#define __vsyscall_fn __attribute__ ((unused,__section__(".vsyscall_fn")))
|
|
|
|
#define VGETCPU_RDTSCP 1
|
|
#define VGETCPU_LSL 2
|
|
|
|
#define hpet_readl(a) readl((const void __iomem *)fix_to_virt(FIX_HPET_BASE) + a)
|
|
#define hpet_writel(d,a) writel(d, (void __iomem *)fix_to_virt(FIX_HPET_BASE) + a)
|
|
|
|
extern int __vgetcpu_mode;
|
|
extern volatile unsigned long __jiffies;
|
|
|
|
/* kernel space (writeable) */
|
|
extern int vgetcpu_mode;
|
|
extern struct timezone sys_tz;
|
|
extern struct vsyscall_gtod_data_t vsyscall_gtod_data;
|
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif /* _ASM_X86_64_VSYSCALL_H_ */
|