/* 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 .section .bss .align 8 .Lclkcmp: .quad 0x0000000000000000 .previous