/* 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/nospec-insn.h>
#include <asm/sigp.h>
#include <asm/lowcore.h>
GEN_BR_THUNK %r9
#
# 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
#
SYM_CODE_START(store_status)
STMG_LC %r0,%r15,__LC_GPREGS_SAVE_AREA
/* General purpose registers */
GET_LC %r13
/* Control registers */
stctg %c0,%c15,__LC_CREGS_SAVE_AREA(%r13)
/* Access registers */
stamy %a0,%a15,__LC_AREGS_SAVE_AREA(%r13)
/* Floating point registers */
lay %r1,__LC_FPREGS_SAVE_AREA(%r13)
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 */
lay %r1,__LC_FP_CREG_SAVE_AREA(%r13)
stfpc
0(%r1)
/* CPU timer */
lay %r1,__LC_CPU_TIMER_SAVE_AREA(%r13)
stpt
0(%r1)
/* Store prefix register */
lay %r1,__LC_PREFIX_SAVE_AREA(%r13)
stpx
0(%r1)
/* Clock comparator - seven bytes */
larl %r4,clkcmp
stckc
0(%r4)
lay %r1,__LC_CLOCK_COMP_SAVE_AREA(%r13)
mvc
1(
7,%r1),
1(%r4)
/* Program status word */
lay %r1,__LC_PSW_SAVE_AREA(%r13)
epsw %r4,%r5
st %r4,
0(%r1)
st %r5,
4(%r1)
stg %r2,
8(%r1)
lgr %r9,%r2
lgr %r2,%r3
BR_EX %r9
SYM_CODE_END(store_status)
.
section .bss
.balign
8
SYM_DATA_LOCAL(clkcmp, .quad
0x0000000000000000)
.previous
