1*210f3d83Skettenis/* $OpenBSD: kexec_subr.S,v 1.1 2020/07/16 19:37:58 kettenis Exp $ */ 2*210f3d83Skettenis 3*210f3d83Skettenis/* 4*210f3d83Skettenis * Copyright (c) 2020 Mark Kettenis <kettenis@openbsd.org> 5*210f3d83Skettenis * 6*210f3d83Skettenis * Permission to use, copy, modify, and distribute this software for any 7*210f3d83Skettenis * purpose with or without fee is hereby granted, provided that the above 8*210f3d83Skettenis * copyright notice and this permission notice appear in all copies. 9*210f3d83Skettenis * 10*210f3d83Skettenis * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11*210f3d83Skettenis * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12*210f3d83Skettenis * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13*210f3d83Skettenis * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14*210f3d83Skettenis * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15*210f3d83Skettenis * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16*210f3d83Skettenis * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17*210f3d83Skettenis */ 18*210f3d83Skettenis 19*210f3d83Skettenis#include "assym.h" 20*210f3d83Skettenis 21*210f3d83Skettenis#include <machine/psl.h> 22*210f3d83Skettenis 23*210f3d83Skettenis .abiversion 2 24*210f3d83Skettenis 25*210f3d83Skettenis .text 26*210f3d83Skettenis 27*210f3d83Skettenis .globl kexec 28*210f3d83Sketteniskexec: 29*210f3d83Skettenis mtctr %r3 30*210f3d83Skettenis mr %r3, %r4 31*210f3d83Skettenis mfmsr %r31 32*210f3d83Skettenis andi. %r31, %r31, ~(PSL_DR|PSL_IR|PSL_ME|PSL_RI)@l 33*210f3d83Skettenis mtmsr %r31 34*210f3d83Skettenis isync 35*210f3d83Skettenis bctr 36