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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright IBM Corp 2000, 2011
* Author(s): Holger Smolinski <Holger.Smolinski@de.ibm.com>,
* Denis Joseph Barrow,
*/
#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#include <asm/sigp.h>
#
# Issue "store status" for the current CPU to its prefix page
# and call passed function afterwards
#
# r2 = Function to be called after store status
# r3 = Parameter for function
#
ENTRY(store_status)
/* Save register one and load save area base */
stg %r1,__LC_SAVE_AREA_RESTART
/* General purpose registers */
lghi %r1,__LC_GPREGS_SAVE_AREA
stmg %r0,%r15,0(%r1)
mvc 8(8,%r1),__LC_SAVE_AREA_RESTART
/* Control registers */
lghi %r1,__LC_CREGS_SAVE_AREA
stctg %c0,%c15,0(%r1)
/* Access registers */
lghi %r1,__LC_AREGS_SAVE_AREA
stam %a0,%a15,0(%r1)
/* Floating point registers */
lghi %r1,__LC_FPREGS_SAVE_AREA
std %f0, 0x00(%r1)
std %f1, 0x08(%r1)
std %f2, 0x10(%r1)
std %f3, 0x18(%r1)
std %f4, 0x20(%r1)
std %f5, 0x28(%r1)
std %f6, 0x30(%r1)
std %f7, 0x38(%r1)
std %f8, 0x40(%r1)
std %f9, 0x48(%r1)
std %f10,0x50(%r1)
std %f11,0x58(%r1)
std %f12,0x60(%r1)
std %f13,0x68(%r1)
std %f14,0x70(%r1)
std %f15,0x78(%r1)
/* Floating point control register */
lghi %r1,__LC_FP_CREG_SAVE_AREA
stfpc 0(%r1)
/* CPU timer */
lghi %r1,__LC_CPU_TIMER_SAVE_AREA
stpt 0(%r1)
/* Store prefix register */
lghi %r1,__LC_PREFIX_SAVE_AREA
stpx 0(%r1)
/* Clock comparator - seven bytes */
lghi %r1,__LC_CLOCK_COMP_SAVE_AREA
larl %r4,.Lclkcmp
stckc 0(%r4)
mvc 1(7,%r1),1(%r4)
/* Program status word */
lghi %r1,__LC_PSW_SAVE_AREA
epsw %r4,%r5
st %r4,0(%r1)
st %r5,4(%r1)
stg %r2,8(%r1)
lgr %r1,%r2
lgr %r2,%r3
br %r1
.section .bss
.align 8
.Lclkcmp: .quad 0x0000000000000000
.previous
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