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81 lines
1.8 KiB
81 lines
1.8 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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/* |
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* Copyright IBM Corp 2000, 2011 |
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* Author(s): Holger Smolinski <Holger.Smolinski@de.ibm.com>, |
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* Denis Joseph Barrow, |
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*/ |
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#include <linux/linkage.h> |
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#include <asm/asm-offsets.h> |
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#include <asm/nospec-insn.h> |
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#include <asm/sigp.h> |
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GEN_BR_THUNK %r9 |
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# |
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# Issue "store status" for the current CPU to its prefix page |
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# and call passed function afterwards |
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# |
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# r2 = Function to be called after store status |
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# r3 = Parameter for function |
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# |
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ENTRY(store_status) |
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/* Save register one and load save area base */ |
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stg %r1,__LC_SAVE_AREA_RESTART |
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/* General purpose registers */ |
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lghi %r1,__LC_GPREGS_SAVE_AREA |
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stmg %r0,%r15,0(%r1) |
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mvc 8(8,%r1),__LC_SAVE_AREA_RESTART |
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/* Control registers */ |
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lghi %r1,__LC_CREGS_SAVE_AREA |
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stctg %c0,%c15,0(%r1) |
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/* Access registers */ |
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lghi %r1,__LC_AREGS_SAVE_AREA |
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stam %a0,%a15,0(%r1) |
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/* Floating point registers */ |
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lghi %r1,__LC_FPREGS_SAVE_AREA |
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std %f0, 0x00(%r1) |
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std %f1, 0x08(%r1) |
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std %f2, 0x10(%r1) |
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std %f3, 0x18(%r1) |
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std %f4, 0x20(%r1) |
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std %f5, 0x28(%r1) |
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std %f6, 0x30(%r1) |
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std %f7, 0x38(%r1) |
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std %f8, 0x40(%r1) |
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std %f9, 0x48(%r1) |
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std %f10,0x50(%r1) |
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std %f11,0x58(%r1) |
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std %f12,0x60(%r1) |
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std %f13,0x68(%r1) |
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std %f14,0x70(%r1) |
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std %f15,0x78(%r1) |
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/* Floating point control register */ |
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lghi %r1,__LC_FP_CREG_SAVE_AREA |
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stfpc 0(%r1) |
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/* CPU timer */ |
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lghi %r1,__LC_CPU_TIMER_SAVE_AREA |
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stpt 0(%r1) |
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/* Store prefix register */ |
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lghi %r1,__LC_PREFIX_SAVE_AREA |
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stpx 0(%r1) |
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/* Clock comparator - seven bytes */ |
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lghi %r1,__LC_CLOCK_COMP_SAVE_AREA |
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larl %r4,.Lclkcmp |
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stckc 0(%r4) |
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mvc 1(7,%r1),1(%r4) |
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/* Program status word */ |
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lghi %r1,__LC_PSW_SAVE_AREA |
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epsw %r4,%r5 |
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st %r4,0(%r1) |
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st %r5,4(%r1) |
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stg %r2,8(%r1) |
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lgr %r9,%r2 |
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lgr %r2,%r3 |
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BR_EX %r9 |
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ENDPROC(store_status) |
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.section .bss |
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.align 8 |
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.Lclkcmp: .quad 0x0000000000000000 |
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.previous
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