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 #include <asm/lowcore.h> 13 14 GEN_BR_THUNK %r9 15 16 # 17 # Issue "store status" for the current CPU to its prefix page 18 # and call passed function afterwards 19 # 20 # r2 = Function to be called after store status 21 # r3 = Parameter for function 22 # 23 SYM_CODE_START(store_status) 24 STMG_LC %r0,%r15,__LC_GPREGS_SAVE_AREA 25 /* General purpose registers */ 26 GET_LC %r13 27 /* Control registers */ 28 stctg %c0,%c15,__LC_CREGS_SAVE_AREA(%r13) 29 /* Access registers */ 30 stamy %a0,%a15,__LC_AREGS_SAVE_AREA(%r13) 31 /* Floating point registers */ 32 lay %r1,__LC_FPREGS_SAVE_AREA(%r13) 33 std %f0, 0x00(%r1) 34 std %f1, 0x08(%r1) 35 std %f2, 0x10(%r1) 36 std %f3, 0x18(%r1) 37 std %f4, 0x20(%r1) 38 std %f5, 0x28(%r1) 39 std %f6, 0x30(%r1) 40 std %f7, 0x38(%r1) 41 std %f8, 0x40(%r1) 42 std %f9, 0x48(%r1) 43 std %f10,0x50(%r1) 44 std %f11,0x58(%r1) 45 std %f12,0x60(%r1) 46 std %f13,0x68(%r1) 47 std %f14,0x70(%r1) 48 std %f15,0x78(%r1) 49 /* Floating point control register */ 50 lay %r1,__LC_FP_CREG_SAVE_AREA(%r13) 51 stfpc 0(%r1) 52 /* CPU timer */ 53 lay %r1,__LC_CPU_TIMER_SAVE_AREA(%r13) 54 stpt 0(%r1) 55 /* Store prefix register */ 56 lay %r1,__LC_PREFIX_SAVE_AREA(%r13) 57 stpx 0(%r1) 58 /* Clock comparator - seven bytes */ 59 larl %r4,clkcmp 60 stckc 0(%r4) 61 lay %r1,__LC_CLOCK_COMP_SAVE_AREA(%r13) 62 mvc 1(7,%r1),1(%r4) 63 /* Program status word */ 64 lay %r1,__LC_PSW_SAVE_AREA(%r13) 65 epsw %r4,%r5 66 st %r4,0(%r1) 67 st %r5,4(%r1) 68 stg %r2,8(%r1) 69 lgr %r9,%r2 70 lgr %r2,%r3 71 BR_EX %r9 72 SYM_CODE_END(store_status) 73 74 .section .bss 75 .balign 8 76 SYM_DATA_LOCAL(clkcmp, .quad 0x0000000000000000) 77 .previous
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