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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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0a3b4d151a
This patch moves the switch_to() macro to system.h As those macros are fundamentally different between i386 and x86_64, they are enclosed around an ifdef. Signed-off-by: Glauber de Oliveira Costa <gcosta@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
23 lines
370 B
C
23 lines
370 B
C
#ifndef __ASM_SYSTEM_H
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#define __ASM_SYSTEM_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
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