[mirror_ubuntu-bionic-kernel.git] / arch / x86 / um / asm / processor.h

#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");
}

#define cpu_relax()		rep_nop()
#define cpu_relax_lowlatency()	cpu_relax()

#include <asm/processor-generic.h>

#endif
Commit	Line	Data
27f85f12 AV	1	#ifndef __UM_PROCESSOR_H
	2	#define __UM_PROCESSOR_H
	3
	4	/* include faultinfo structure */
	5	#include <sysdep/faultinfo.h>
	6
	7	#ifdef CONFIG_X86_32
	8	# include "processor_32.h"
	9	#else
	10	# include "processor_64.h"
	11	#endif
	12
a10c95d8	13	#define KSTK_EIP(tsk) KSTK_REG(tsk, HOST_IP)
cc11f9ed	14	#define KSTK_ESP(tsk) KSTK_REG(tsk, HOST_SP)
a10c95d8 AV	15	#define KSTK_EBP(tsk) KSTK_REG(tsk, HOST_BP)
a10c95d8 AV	16
c7ea591c AV	17	#define ARCH_IS_STACKGROW(address) \
	18	(address + 65536 + 32 * sizeof(unsigned long) >= UPT_SP(&current->thread.regs.regs))
	19
c56334db AV	20	#include <asm/user.h>
	21
	22	/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
	23	static inline void rep_nop(void)
	24	{
	25	__asm__ __volatile__("rep;nop": : :"memory");
	26	}
	27
3a6bfbc9 DB	28	#define cpu_relax() rep_nop()
3a6bfbc9 DB	29	#define cpu_relax_lowlatency() cpu_relax()
c56334db	30
27f85f12 AV	31	#include <asm/processor-generic.h>
	32
	33	#endif