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s390/fpu: Move GR_NUM / VX_NUM macros to separate header file

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Move GR_NUM / VX_NUM macros to separate insn-common-asm.h header file
so they can be reused for non-fpu insn constructs.

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Steffen Eiden <seiden@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2026-05-26 15:09:52 +02:00 committed by Alexander Gordeev
parent b8288a3bd6
commit 495bc70aa3
3 changed files with 56 additions and 40 deletions
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42
arch/s390/include/asm/fpu-insn-asm.h
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@ -16,48 +16,10 @@
#error only <asm/fpu-insn.h> can be included directly
#endif
#include <asm/insn-common-asm.h>
#ifdef __ASSEMBLER__
/* Macros to generate vector instruction byte code */
/* GR_NUM - Retrieve general-purpose register number
*
* @opd: Operand to store register number
* @r64: String designation register in the format "%rN"
*/
.macro GR_NUM opd gr
\opd = 255
.irp rs,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
.ifc \gr,%r\rs
\opd = \rs
.endif
.endr
.if \opd == 255
\opd = \gr
.endif
.endm
/* VX_NUM - Retrieve vector register number
*
* @opd: Operand to store register number
* @vxr: String designation register in the format "%vN"
*
* The vector register number is used for as input number to the
* instruction and, as well as, to compute the RXB field of the
* instruction.
*/
.macro VX_NUM opd vxr
\opd = 255
.irp vs,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31
.ifc \vxr,%v\vs
\opd = \vs
.endif
.endr
.if \opd == 255
\opd = \vxr
.endif
.endm
/* RXB - Compute most significant bit used vector registers
*
* @rxb: Operand to store computed RXB value

1
arch/s390/include/asm/fpu-insn.h
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@ -15,6 +15,7 @@
#include <linux/kmsan.h>
#include <asm/asm-extable.h>
asm(".include \"asm/insn-common-asm.h\"\n");
asm(".include \"asm/fpu-insn-asm.h\"\n");
/*

53
arch/s390/include/asm/insn-common-asm.h Normal file
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@ -0,0 +1,53 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Assembler helper macros to generate .byte/.word code for instructions
* that are unknown to older binutils versions.
*/
#ifndef __ASM_S390_INSN_COMMON_ASM_H
#define __ASM_S390_INSN_COMMON_ASM_H
#ifdef __ASSEMBLER__
/*
* GR_NUM - Retrieve general-purpose register number
*
* @opd: Operand to store register number
* @gr: String designation register in the format "%rN"
*/
.macro GR_NUM opd gr
\opd = 255
.irp rs,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15
.ifc \gr,%r\rs
\opd = \rs
.endif
.endr
.if \opd == 255
\opd = \gr
.endif
.endm
/*
* VX_NUM - Retrieve vector register number
*
* @opd: Operand to store register number
* @vxr: String designation register in the format "%vN"
*
* The vector register number is used for as input number to the
* instruction and, as well as, to compute the RXB field of the
* instruction.
*/
.macro VX_NUM opd vxr
\opd = 255
.irp vs,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31
.ifc \vxr,%v\vs
\opd = \vs
.endif
.endr
.if \opd == 255
\opd = \vxr
.endif
.endm
#endif /* __ASSEMBLER__ */
#endif /* __ASM_S390_INSN_COMMON_ASM_H */