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1965aae3c9
Change header guards named "ASM_X86__*" to "_ASM_X86_*" since: a. the double underscore is ugly and pointless. b. no leading underscore violates namespace constraints. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
23 lines
409 B
C
23 lines
409 B
C
#ifndef _ASM_X86_SYSTEM_64_H
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#define _ASM_X86_SYSTEM_64_H
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#include <asm/segment.h>
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#include <asm/cmpxchg.h>
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static inline unsigned long read_cr8(void)
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{
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unsigned long cr8;
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asm volatile("movq %%cr8,%0" : "=r" (cr8));
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return cr8;
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}
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static inline void write_cr8(unsigned long val)
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{
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asm volatile("movq %0,%%cr8" :: "r" (val) : "memory");
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}
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#include <linux/irqflags.h>
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#endif /* _ASM_X86_SYSTEM_64_H */
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