1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * Copyright IBM Corp 2000, 2011 4 * Author(s): Holger Smolinski <Holger.Smolinski@de.ibm.com>, 5 * Denis Joseph Barrow, 6 */ 7 8#include <linux/linkage.h> 9#include <asm/asm-offsets.h> 10#include <asm/nospec-insn.h> 11#include <asm/sigp.h> 12 13 GEN_BR_THUNK %r9 14 15# 16# Issue "store status" for the current CPU to its prefix page 17# and call passed function afterwards 18# 19# r2 = Function to be called after store status 20# r3 = Parameter for function 21# 22ENTRY(store_status) 23 /* Save register one and load save area base */ 24 stg %r1,__LC_SAVE_AREA_RESTART 25 /* General purpose registers */ 26 lghi %r1,__LC_GPREGS_SAVE_AREA 27 stmg %r0,%r15,0(%r1) 28 mvc 8(8,%r1),__LC_SAVE_AREA_RESTART 29 /* Control registers */ 30 lghi %r1,__LC_CREGS_SAVE_AREA 31 stctg %c0,%c15,0(%r1) 32 /* Access registers */ 33 lghi %r1,__LC_AREGS_SAVE_AREA 34 stam %a0,%a15,0(%r1) 35 /* Floating point registers */ 36 lghi %r1,__LC_FPREGS_SAVE_AREA 37 std %f0, 0x00(%r1) 38 std %f1, 0x08(%r1) 39 std %f2, 0x10(%r1) 40 std %f3, 0x18(%r1) 41 std %f4, 0x20(%r1) 42 std %f5, 0x28(%r1) 43 std %f6, 0x30(%r1) 44 std %f7, 0x38(%r1) 45 std %f8, 0x40(%r1) 46 std %f9, 0x48(%r1) 47 std %f10,0x50(%r1) 48 std %f11,0x58(%r1) 49 std %f12,0x60(%r1) 50 std %f13,0x68(%r1) 51 std %f14,0x70(%r1) 52 std %f15,0x78(%r1) 53 /* Floating point control register */ 54 lghi %r1,__LC_FP_CREG_SAVE_AREA 55 stfpc 0(%r1) 56 /* CPU timer */ 57 lghi %r1,__LC_CPU_TIMER_SAVE_AREA 58 stpt 0(%r1) 59 /* Store prefix register */ 60 lghi %r1,__LC_PREFIX_SAVE_AREA 61 stpx 0(%r1) 62 /* Clock comparator - seven bytes */ 63 lghi %r1,__LC_CLOCK_COMP_SAVE_AREA 64 larl %r4,.Lclkcmp 65 stckc 0(%r4) 66 mvc 1(7,%r1),1(%r4) 67 /* Program status word */ 68 lghi %r1,__LC_PSW_SAVE_AREA 69 epsw %r4,%r5 70 st %r4,0(%r1) 71 st %r5,4(%r1) 72 stg %r2,8(%r1) 73 lgr %r9,%r2 74 lgr %r2,%r3 75 BR_EX %r9 76ENDPROC(store_status) 77 78 .section .bss 79 .align 8 80.Lclkcmp: .quad 0x0000000000000000 81 .previous 82