1/*	$NetBSD: mcontext.h,v 1.10 2018/02/19 08:31:13 mrg Exp $	*/
 2
 3#ifndef _SPARC64_MCONTEXT_H_
 4#define	_SPARC64_MCONTEXT_H_
 5
 6#include <sparc/mcontext.h>
 7
 8#define	_NGREG32	19	/* %psr, pc, npc, %g1-7, %o0-7 */
 9typedef	int	__greg32_t;
10typedef	__greg32_t	__gregset32_t[_NGREG32];
11
12typedef unsigned int	netbsd32___greg32p_t;
13typedef unsigned int	netbsd32___fqp_t;
14typedef unsigned int	netbsd32___gwindows32p_t;
15
16#define	_REG32_PSR	0
17#define	_REG32_PC	1
18#define	_REG32_nPC	2
19#define	_REG32_Y	3
20#define	_REG32_G1	4
21#define	_REG32_G2	5
22#define	_REG32_G3	6
23#define	_REG32_G4	7
24#define	_REG32_G5	8
25#define	_REG32_G6	9
26#define	_REG32_G7	10
27#define	_REG32_O0	11
28#define	_REG32_O1	12
29#define	_REG32_O2	13
30#define	_REG32_O3	14
31#define	_REG32_O4	15
32#define	_REG32_O5	16
33#define	_REG32_O6	17
34#define	_REG32_O7	18
35
36/* Layout of a register window. */
37typedef struct {
38	__greg32_t	__rw_local[8];	/* %l0-7 */
39	__greg32_t	__rw_in[8];	/* %i0-7 */
40} __rwindow32_t;
41
42/* Description of available register windows. */
43typedef struct {
44	int		__wbcnt;
45	netbsd32___greg32p_t	__spbuf[_SPARC_MAXREGWINDOW];
46	__rwindow32_t	__wbuf[_SPARC_MAXREGWINDOW];
47} __gwindows32_t;
48
49/* FPU state description */
50typedef struct {
51	union {
52		unsigned int	__fpu_regs[32];
53		double		__fpu_dregs[16];
54	} __fpu_fr;				/* FPR contents */
55	netbsd32___fqp_t	__fpu_q;	/* pointer to FPU insn queue */
56	unsigned int	__fpu_fsr;		/* %fsr */
57	unsigned char	__fpu_qcnt;		/* # entries in __fpu_q */
58	unsigned char	__fpu_q_entrysize; 	/* size of a __fpu_q entry */
59	unsigned char	__fpu_en;		/* this context valid? */
60} __fpregset32_t;
61
62/* `Extra Register State'(?) */
63typedef struct {
64	unsigned int	__xrs_id;	/* See below */
65	unsigned int	__xrs_ptr;	/* points into filler area */
66} __xrs32_t;
67
68typedef struct {
69	__gregset32_t	__gregs;	/* GPR state */
70	netbsd32___gwindows32p_t __gwins;/* may point to register windows */
71	__fpregset32_t	__fpregs;	/* FPU state, if any */
72	__xrs32_t	__xrs;		/* may indicate extra reg state */
73} mcontext32_t;
74
75#define	_UC_SETSTACK	0x00010000
76#define	_UC_CLRSTACK	0x00020000
77#define	_UC_TLSBASE	0x00080000
78
79#define	_UC_MACHINE32_PAD	43	/* compat_netbsd32 variant */
80#define	_UC_MACHINE32_SP(uc)	((uc)->uc_mcontext.__gregs[_REG_O6])
81#define	_UC_MACHINE32_FP(uc)	(((__greg32_t *)_UC_MACHINE32_SP(uc))[15])
82
83#endif /* _SPARC64_MCONTEXT_H_ */