| /* 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> |
| |
| 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 |
| # |
| 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 %r9,%r2 |
| lgr %r2,%r3 |
| BR_EX %r9 |
| ENDPROC(store_status) |
| |
| .section .bss |
| .align 8 |
| .Lclkcmp: .quad 0x0000000000000000 |
| .previous |
