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
32typedef unsigned long mc_greg_t;
33typedef mc_greg_t mc_gregset_t[MC_NGREG];
34
35#define MC_MAXFPQ 16
36struct mc_fq {
37 unsigned long *mcfq_addr;
38 unsigned int mcfq_insn;
39};
40
41struct 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};
55typedef struct mc_fpu mc_fpu_t;
56
57typedef 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
64struct ucontext {
65 struct ucontext *uc_link;
66 unsigned long uc_flags;
67 sigset_t uc_sigmask;
68 mcontext_t uc_mcontext;
69};
70typedef struct ucontext ucontext_t;
71
72#endif /* __SPARC64_UCTX_H */