Release 4.14 arch/x86/um/asm/processor.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __UM_PROCESSOR_H

#define __UM_PROCESSOR_H

/* include faultinfo structure */
#include <sysdep/faultinfo.h>

#ifdef CONFIG_X86_32
# include "processor_32.h"
#else
# include "processor_64.h"
#endif


#define KSTK_EIP(tsk) KSTK_REG(tsk, HOST_IP)

#define KSTK_ESP(tsk) KSTK_REG(tsk, HOST_SP)

#define KSTK_EBP(tsk) KSTK_REG(tsk, HOST_BP)


#define ARCH_IS_STACKGROW(address) \
       (address + 65536 + 32 * sizeof(unsigned long) >= UPT_SP(&current->thread.regs.regs))

#include <asm/user.h>

/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */


static inline void rep_nop(void)
{
	__asm__ __volatile__("rep;nop": : :"memory");
}

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#define cpu_relax()		rep_nop()


#define task_pt_regs(t) (&(t)->thread.regs)

#include <asm/processor-generic.h>

#endif
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Directory: arch/x86/um/asm

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