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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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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_
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#define _ASM_X86_64_VSYSCALL_H_
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enum vsyscall_num {
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__NR_vgettimeofday,
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__NR_vtime,
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__NR_vgetcpu,
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};
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#define VSYSCALL_START (-10UL << 20)
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#define VSYSCALL_SIZE 1024
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#define VSYSCALL_END (-2UL << 20)
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#define VSYSCALL_MAPPED_PAGES 1
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#define VSYSCALL_ADDR(vsyscall_nr) (VSYSCALL_START+VSYSCALL_SIZE*(vsyscall_nr))
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#ifdef __KERNEL__
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#include <linux/seqlock.h>
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#define __section_vgetcpu_mode __attribute__ ((unused, __section__ (".vgetcpu_mode"), aligned(16)))
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#define __section_jiffies __attribute__ ((unused, __section__ (".jiffies"), aligned(16)))
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/* Definitions for CONFIG_GENERIC_TIME definitions */
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#define __section_vsyscall_gtod_data __attribute__ \
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((unused, __section__ (".vsyscall_gtod_data"),aligned(16)))
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#define __vsyscall_fn __attribute__ ((unused,__section__(".vsyscall_fn")))
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#define VGETCPU_RDTSCP 1
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#define VGETCPU_LSL 2
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#define hpet_readl(a) readl((const void __iomem *)fix_to_virt(FIX_HPET_BASE) + a)
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#define hpet_writel(d,a) writel(d, (void __iomem *)fix_to_virt(FIX_HPET_BASE) + a)
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extern int __vgetcpu_mode;
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extern volatile unsigned long __jiffies;
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/* kernel space (writeable) */
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extern int vgetcpu_mode;
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extern struct timezone sys_tz;
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extern struct vsyscall_gtod_data_t vsyscall_gtod_data;
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#endif /* __KERNEL__ */
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#endif /* _ASM_X86_64_VSYSCALL_H_ */
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