xref: /openbmc/linux/arch/sparc/include/uapi/asm/uctx.h (revision 6f52b16c)
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 /*
3  * uctx.h: Sparc64 {set,get}context() register state layouts.
4  *
5  * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
6  */
7 
8 #ifndef __SPARC64_UCTX_H
9 #define __SPARC64_UCTX_H
10 
11 #define MC_TSTATE	0
12 #define MC_PC		1
13 #define MC_NPC		2
14 #define MC_Y		3
15 #define MC_G1		4
16 #define MC_G2		5
17 #define MC_G3		6
18 #define MC_G4		7
19 #define MC_G5		8
20 #define MC_G6		9
21 #define MC_G7		10
22 #define MC_O0		11
23 #define MC_O1		12
24 #define MC_O2		13
25 #define MC_O3		14
26 #define MC_O4		15
27 #define MC_O5		16
28 #define MC_O6		17
29 #define MC_O7		18
30 #define MC_NGREG	19
31 
32 typedef unsigned long mc_greg_t;
33 typedef mc_greg_t mc_gregset_t[MC_NGREG];
34 
35 #define MC_MAXFPQ	16
36 struct mc_fq {
37 	unsigned long	*mcfq_addr;
38 	unsigned int	mcfq_insn;
39 };
40 
41 struct mc_fpu {
42 	union {
43 		unsigned int	sregs[32];
44 		unsigned long	dregs[32];
45 		long double	qregs[16];
46 	} mcfpu_fregs;
47 	unsigned long	mcfpu_fsr;
48 	unsigned long	mcfpu_fprs;
49 	unsigned long	mcfpu_gsr;
50 	struct mc_fq	*mcfpu_fq;
51 	unsigned char	mcfpu_qcnt;
52 	unsigned char	mcfpu_qentsz;
53 	unsigned char	mcfpu_enab;
54 };
55 typedef struct mc_fpu mc_fpu_t;
56 
57 typedef struct {
58 	mc_gregset_t	mc_gregs;
59 	mc_greg_t	mc_fp;
60 	mc_greg_t	mc_i7;
61 	mc_fpu_t	mc_fpregs;
62 } mcontext_t;
63 
64 struct ucontext {
65 	struct ucontext		*uc_link;
66 	unsigned long		uc_flags;
67 	sigset_t		uc_sigmask;
68 	mcontext_t		uc_mcontext;
69 };
70 typedef struct ucontext ucontext_t;
71 
72 #endif /* __SPARC64_UCTX_H */
73