/* 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