Book a Demo!
CoCalc Logo Icon
StoreFeaturesDocsShareSupportNewsAboutPoliciesSign UpSign In
torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/loongarch/include/asm/fpregdef.h
26488 views
1
/* SPDX-License-Identifier: GPL-2.0 */

2
/*

3
 * Definitions for the FPU register names

4
 *

5
 * Copyright (C) 2020-2022 Loongson Technology Corporation Limited

6
 */

7
#ifndef _ASM_FPREGDEF_H

8
#define _ASM_FPREGDEF_H

9


10
#define fa0	$f0	/* argument registers, fa0/fa1 reused as fv0/fv1 for return value */

11
#define fa1	$f1

12
#define fa2	$f2

13
#define fa3	$f3

14
#define fa4	$f4

15
#define fa5	$f5

16
#define fa6	$f6

17
#define fa7	$f7

18
#define ft0	$f8	/* caller saved */

19
#define ft1	$f9

20
#define ft2	$f10

21
#define ft3	$f11

22
#define ft4	$f12

23
#define ft5	$f13

24
#define ft6	$f14

25
#define ft7	$f15

26
#define ft8	$f16

27
#define ft9	$f17

28
#define ft10	$f18

29
#define ft11	$f19

30
#define ft12	$f20

31
#define ft13	$f21

32
#define ft14	$f22

33
#define ft15	$f23

34
#define fs0	$f24	/* callee saved */

35
#define fs1	$f25

36
#define fs2	$f26

37
#define fs3	$f27

38
#define fs4	$f28

39
#define fs5	$f29

40
#define fs6	$f30

41
#define fs7	$f31

42


43
#ifndef CONFIG_AS_HAS_FCSR_CLASS

44
/*

45
 * Current binutils expects *GPRs* at FCSR position for the FCSR

46
 * operation instructions, so define aliases for those used.

47
 */

48
#define fcsr0	$r0

49
#define fcsr1	$r1

50
#define fcsr2	$r2

51
#define fcsr3	$r3

52
#else

53
#define fcsr0	$fcsr0

54
#define fcsr1	$fcsr1

55
#define fcsr2	$fcsr2

56
#define fcsr3	$fcsr3

57
#endif

58


59
#endif /* _ASM_FPREGDEF_H */

60


61