/*      $NetBSD: intr.h,v 1.32 2023/09/02 05:51:57 jdc Exp $ */

/*-
 * Copyright (c) 1998 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Paul Kranenburg.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _SPARC64_INTR_H_
#define _SPARC64_INTR_H_

#ifdef _KERNEL

#if defined(_KERNEL_OPT)
#include "opt_multiprocessor.h"
#endif

#ifndef _LOCORE
#include <machine/cpuset.h>
#endif
#include <machine/psl.h>

/* XXX - arbitrary numbers; no interpretation is defined yet */
#define IPL_NONE        0               /* nothing */
#define IPL_SOFTCLOCK   1               /* timeouts */
#define IPL_SOFTBIO     1               /* block I/O */
#define IPL_SOFTNET     1               /* protocol stack */
#define IPL_SOFTSERIAL  4               /* serial */
#define IPL_VM          PIL_VM          /* memory allocation */
#define IPL_SCHED       PIL_SCHED       /* scheduler */
#define IPL_HIGH        PIL_HIGH        /* everything */
#define IPL_HALT        5               /* cpu stop-self */
#define IPL_PAUSE       13              /* pause cpu */

/*
 * IPL_SAFEPRI is a safe priority for sleep to set for a spin-wait
 * during autoconfiguration or after a panic.
 */
#define IPL_SAFEPRI     IPL_NONE

#ifndef _LOCORE
void fpusave_lwp(struct lwp *, bool);
#endif  /* _LOCORE */

#if defined(MULTIPROCESSOR)
#ifndef _LOCORE
void    sparc64_ipi_init (void);
void    sparc64_ipi_halt_thiscpu (void *, void *);
void    sparc64_ipi_pause_thiscpu (void *);
void    sparc64_do_pause(void);
void    sparc64_ipi_drop_fpstate (void *, void *);
void    sparc64_ipi_save_fpstate (void *, void *);
void    sparc64_ipi_nop (void *, void *);
void    sparc64_ipi_ccall(void *, void *);
void    mp_halt_cpus (void);
void    mp_pause_cpus (void);
void    mp_resume_cpus (void);
int     mp_cpu_is_paused (sparc64_cpuset_t);
void    mp_resume_cpu(int);
#endif  /* _LOCORE */
#endif

#endif /* _KERNEL */

#define IPI_EVCNT_TLB_PTE       0
#define IPI_EVCNT_FPU_SYNCH     1
#define IPI_EVCNT_FPU_FLUSH     2
#define IPI_EVCNT_NUM           3
#define IPI_EVCNT_NAMES { "TLB pte IPI", "FPU synch IPI", "FPU flush IPI" }

#endif /* _SPARC64_INTR_H_ */