arch/arm/cpu/armv8/transition.S

   1 /*
   2  * (C) Copyright 2013
   3  * David Feng <fenghua@phytium.com.cn>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <asm-offsets.h>
   9 #include <config.h>
  10 #include <linux/linkage.h>
  11 #include <asm/macro.h>
  12
  13 ENTRY(armv8_switch_to_el2)
  14         switch_el x0, 1f, 0f, 0f
  15 0:      ret
  16 1:      armv8_switch_to_el2_m x0
  17 ENDPROC(armv8_switch_to_el2)
  18
  19 ENTRY(armv8_switch_to_el1)
  20         switch_el x0, 0f, 1f, 0f
  21 0:      ret
  22 1:      armv8_switch_to_el1_m x0, x1
  23 ENDPROC(armv8_switch_to_el1)