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f2ac457a61
Add common headers (CPU definition and address space layout) for basic LoongArch support. Reviewed-by: WANG Xuerui <git@xen0n.name> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
42 lines
871 B
C
42 lines
871 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2020-2022 Loongson Technology Corporation Limited
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*/
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#ifndef _ASM_REGDEF_H
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#define _ASM_REGDEF_H
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#define zero $r0 /* wired zero */
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#define ra $r1 /* return address */
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#define tp $r2
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#define sp $r3 /* stack pointer */
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#define a0 $r4 /* argument registers, a0/a1 reused as v0/v1 for return value */
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#define a1 $r5
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#define a2 $r6
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#define a3 $r7
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#define a4 $r8
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#define a5 $r9
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#define a6 $r10
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#define a7 $r11
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#define t0 $r12 /* caller saved */
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#define t1 $r13
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#define t2 $r14
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#define t3 $r15
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#define t4 $r16
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#define t5 $r17
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#define t6 $r18
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#define t7 $r19
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#define t8 $r20
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#define u0 $r21
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#define fp $r22 /* frame pointer */
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#define s0 $r23 /* callee saved */
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#define s1 $r24
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#define s2 $r25
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#define s3 $r26
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#define s4 $r27
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#define s5 $r28
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#define s6 $r29
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#define s7 $r30
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#define s8 $r31
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#endif /* _ASM_REGDEF_H */
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