36 lines
808 B
C
36 lines
808 B
C
|
/* 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(¤t->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 task_pt_regs(t) (&(t)->thread.regs)
|
||
|
|
|
||
|
|
#include <asm/processor-generic.h>
|
||
|
|
|
||
|
|
#endif
|