Line data    Source code

       1             : /* SPDX-License-Identifier: GPL-2.0 */
       2             : #ifndef __UM_PROCESSOR_H
       3             : #define __UM_PROCESSOR_H
       4             : #include <linux/time-internal.h>
       5             : 
       6             : /* include faultinfo structure */
       7             : #include <sysdep/faultinfo.h>
       8             : 
       9             : #ifdef CONFIG_X86_32
      10             : # include "processor_32.h"
      11             : #else
      12             : # include "processor_64.h"
      13             : #endif
      14             : 
      15             : #define KSTK_EIP(tsk) KSTK_REG(tsk, HOST_IP)
      16             : #define KSTK_ESP(tsk) KSTK_REG(tsk, HOST_SP)
      17             : #define KSTK_EBP(tsk) KSTK_REG(tsk, HOST_BP)
      18             : 
      19             : #define ARCH_IS_STACKGROW(address) \
      20             :        (address + 65536 + 32 * sizeof(unsigned long) >= UPT_SP(&current->thread.regs.regs))
      21             : 
      22             : #include <asm/user.h>
      23             : 
      24             : /* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
      25             : static __always_inline void rep_nop(void)
      26             : {
      27           0 :         __asm__ __volatile__("rep;nop": : :"memory");
      28             : }
      29             : 
      30             : static __always_inline void cpu_relax(void)
      31             : {
      32             :         if (time_travel_mode == TT_MODE_INFCPU ||
      33             :             time_travel_mode == TT_MODE_EXTERNAL)
      34             :                 time_travel_ndelay(1);
      35             :         else
      36             :                 rep_nop();
      37             : }
      38             : 
      39             : #define task_pt_regs(t) (&(t)->thread.regs)
      40             : 
      41             : #include <asm/processor-generic.h>
      42             : 
      43             : #endif