1/*-
2 * Copyright (C) 2003 Jake Burkholder <jake@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Neither the name of the author nor the names of its contributors
11 *    may be used to endorse or promote products derived from this software
12 *    without specific prior written permission.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <machine/asm.h>
28__FBSDID("$FreeBSD$");
29
30#include "assym.s"
31
32	.weak	CNAME(_thr_getcontext)
33	.set	CNAME(_thr_getcontext),CNAME(__thr_getcontext)
34ENTRY(__thr_getcontext)
35	add	%o7, 8, %o1
36	add	%o1, 4, %o2
37	stx	%sp, [%o0 + MC_OUT + (6 * 8)]
38	stx	%o1, [%o0 + MC_TPC]
39	stx	%o2, [%o0 + MC_TNPC]
40	mov	MC_VALID_FLAGS, %l0		/* Validate the context. */
41	stx	%l0, [%o0 + MC_FLAGS]
42	mov	1, %l0
43	stx	%l0, [%o0 + MC_OUT + (0 * 8)]	/* return 1 when resumed */
44	retl
45	mov	0, %o0				/* return 0 */
46END(__thr_getcontext)
47
48	.weak	CNAME(_thr_setcontext)
49	.set	CNAME(_thr_setcontext),CNAME(__thr_setcontext)
50ENTRY(__thr_setcontext)
51	save	%sp, -CCFSZ, %sp
52	flushw
53	mov	%i0, %l0
54	mov	%i1, %l1
55	mov	%i2, %l2
56	ldx	[%l0 + MC_GLOBAL + (1 * 8)], %g1
57	ldx	[%l0 + MC_GLOBAL + (2 * 8)], %g2
58	ldx	[%l0 + MC_GLOBAL + (3 * 8)], %g3
59	ldx	[%l0 + MC_GLOBAL + (4 * 8)], %g4
60	ldx	[%l0 + MC_GLOBAL + (5 * 8)], %g5
61	ldx	[%l0 + MC_GLOBAL + (6 * 8)], %g6
62	ldx	[%l0 + MC_GLOBAL + (7 * 8)], %g7
63	ldx	[%l0 + MC_OUT + (0 * 8)], %i0
64	ldx	[%l0 + MC_OUT + (1 * 8)], %i1
65	ldx     [%l0 + MC_OUT + (2 * 8)], %i2
66	ldx	[%l0 + MC_OUT + (3 * 8)], %i3
67	ldx	[%l0 + MC_OUT + (4 * 8)], %i4
68	ldx	[%l0 + MC_OUT + (5 * 8)], %i5
69	ldx	[%l0 + MC_OUT + (6 * 8)], %i6
70	ldx	[%l0 + MC_OUT + (7 * 8)], %i7
71	ldx	[%l0 + MC_TPC], %l4
72	ldx	[%l0 + MC_TNPC], %l3
73	brz	%l2, 1f
74	nop
75	stx	%l1, [%l2]
761:	jmpl	%l3, %g0
77	return	%l4
78END(__thr_setcontext)
79
80ENTRY(_sparc64_enter_uts)
81	save	%sp, -CCFSZ, %sp
82	flushw
83	add	%i2, %i3, %i2
84	sub	%i2, SPOFF + CCFSZ, %sp
85	jmpl	%i0, %g0
86	mov	%i1, %o0
87END(_sparc64_enter_uts)
88