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riscv: Add X register names to gpr-nums

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When encoding instructions it's sometimes necessary to set a
register field to a precise number. This is easiest to do using
the x<num> naming.

Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Andrew Jones 2022-10-02 10:17:58 +05:30 • committed by Anup Patel
parent f76349cf41
commit 7fc4426959
1 changed files with 8 additions and 0 deletions
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8
arch/riscv/include/asm/gpr-num.h
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@ -3,6 +3,11 @@
#define __ASM_GPR_NUM_H
#ifdef __ASSEMBLY__
.irp num,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
.equ .L__gpr_num_x\num, \num
.endr
.equ .L__gpr_num_zero, 0
.equ .L__gpr_num_ra, 1
.equ .L__gpr_num_sp, 2
@ -39,6 +44,9 @@
#else /* __ASSEMBLY__ */
#define __DEFINE_ASM_GPR_NUMS \
" .irp num,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\n" \
" .equ .L__gpr_num_x\\num, \\num\n" \
" .endr\n" \
" .equ .L__gpr_num_zero, 0\n" \
" .equ .L__gpr_num_ra, 1\n" \
" .equ .L__gpr_num_sp, 2\n" \