1/* $NetBSD: intr.h,v 1.32 2023/09/02 05:51:57 jdc Exp $ */
2
3/*-
4 * Copyright (c) 1998 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Paul Kranenburg.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _SPARC64_INTR_H_
33#define _SPARC64_INTR_H_
34
35#ifdef _KERNEL
36
37#if defined(_KERNEL_OPT)
38#include "opt_multiprocessor.h"
39#endif
40
41#ifndef _LOCORE
42#include <machine/cpuset.h>
43#endif
44#include <machine/psl.h>
45
46/* XXX - arbitrary numbers; no interpretation is defined yet */
47#define IPL_NONE 0 /* nothing */
48#define IPL_SOFTCLOCK 1 /* timeouts */
49#define IPL_SOFTBIO 1 /* block I/O */
50#define IPL_SOFTNET 1 /* protocol stack */
51#define IPL_SOFTSERIAL 4 /* serial */
52#define IPL_VM PIL_VM /* memory allocation */
53#define IPL_SCHED PIL_SCHED /* scheduler */
54#define IPL_HIGH PIL_HIGH /* everything */
55#define IPL_HALT 5 /* cpu stop-self */
56#define IPL_PAUSE 13 /* pause cpu */
57
58/*
59 * IPL_SAFEPRI is a safe priority for sleep to set for a spin-wait
60 * during autoconfiguration or after a panic.
61 */
62#define IPL_SAFEPRI IPL_NONE
63
64#ifndef _LOCORE
65void fpusave_lwp(struct lwp *, bool);
66#endif /* _LOCORE */
67
68#if defined(MULTIPROCESSOR)
69#ifndef _LOCORE
70void sparc64_ipi_init (void);
71void sparc64_ipi_halt_thiscpu (void *, void *);
72void sparc64_ipi_pause_thiscpu (void *);
73void sparc64_do_pause(void);
74void sparc64_ipi_drop_fpstate (void *, void *);
75void sparc64_ipi_save_fpstate (void *, void *);
76void sparc64_ipi_nop (void *, void *);
77void sparc64_ipi_ccall(void *, void *);
78void mp_halt_cpus (void);
79void mp_pause_cpus (void);
80void mp_resume_cpus (void);
81int mp_cpu_is_paused (sparc64_cpuset_t);
82void mp_resume_cpu(int);
83#endif /* _LOCORE */
84#endif
85
86#endif /* _KERNEL */
87
88#define IPI_EVCNT_TLB_PTE 0
89#define IPI_EVCNT_FPU_SYNCH 1
90#define IPI_EVCNT_FPU_FLUSH 2
91#define IPI_EVCNT_NUM 3
92#define IPI_EVCNT_NAMES { "TLB pte IPI", "FPU synch IPI", "FPU flush IPI" }
93
94#endif /* _SPARC64_INTR_H_ */