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| /* 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
|
|
