arch/loongarch/include/asm/regdef.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (C) 2020-2022 Loongson Technology Corporation Limited
   4  */
   5 #ifndef _ASM_REGDEF_H
   6 #define _ASM_REGDEF_H
   7
   8 #define zero    $r0     /* wired zero */
   9 #define ra      $r1     /* return address */
  10 #define tp      $r2
  11 #define sp      $r3     /* stack pointer */
  12 #define a0      $r4     /* argument registers, a0/a1 reused as v0/v1 for return value */
  13 #define a1      $r5
  14 #define a2      $r6
  15 #define a3      $r7
  16 #define a4      $r8
  17 #define a5      $r9
  18 #define a6      $r10
  19 #define a7      $r11
  20 #define t0      $r12    /* caller saved */
  21 #define t1      $r13
  22 #define t2      $r14
  23 #define t3      $r15
  24 #define t4      $r16
  25 #define t5      $r17
  26 #define t6      $r18
  27 #define t7      $r19
  28 #define t8      $r20
  29 #define u0      $r21
  30 #define fp      $r22    /* frame pointer */
  31 #define s0      $r23    /* callee saved */
  32 #define s1      $r24
  33 #define s2      $r25
  34 #define s3      $r26
  35 #define s4      $r27
  36 #define s5      $r28
  37 #define s6      $r29
  38 #define s7      $r30
  39 #define s8      $r31
  40
  41 #endif /* _ASM_REGDEF_H */