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/* $OpenBSD: intr.h,v 1.13 2020/10/24 21:42:10 kettenis Exp $ */
/*
* Copyright (c) 2020 Mark Kettenis <kettenis@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _MACHINE_INTR_H_
#define _MACHINE_INTR_H_
struct cpu_info;
struct trapframe;
#define IPL_NONE 0
#define IPL_SOFT 1
#define IPL_SOFTCLOCK 2
#define IPL_SOFTNET 3
#define IPL_SOFTTTY 4
#define IPL_BIO 5
#define IPL_NET 6
#define IPL_TTY 7
#define IPL_VM IPL_TTY
#define IPL_AUDIO 8
#define IPL_CLOCK 9
#define IPL_STATCLOCK IPL_CLOCK
#define IPL_SCHED IPL_CLOCK
#define IPL_HIGH IPL_CLOCK
#define IPL_IPI 10
#define NIPL 11
#define IPL_MPFLOOR IPL_TTY
/* Interrupt priority 'flags'. */
#define IPL_IRQMASK 0xf /* priority only */
#define IPL_FLAGMASK 0xf00 /* flags only*/
#define IPL_MPSAFE 0x100 /* 'mpsafe' interrupt, no kernel lock */
int splraise(int);
int spllower(int);
void splx(int);
#define spl0() spllower(IPL_NONE)
#define splsoftclock() splraise(IPL_SOFTCLOCK)
#define splsoftnet() splraise(IPL_SOFTNET)
#define splsofttty() splraise(IPL_SOFTTTY)
#define splbio() splraise(IPL_BIO)
#define splnet() splraise(IPL_NET)
#define spltty() splraise(IPL_TTY)
#define splvm() splraise(IPL_VM)
#define splclock() splraise(IPL_CLOCK)
#define splstatclock() splraise(IPL_STATCLOCK)
#define splsched() splraise(IPL_SCHED)
#define splhigh() splraise(IPL_HIGH)
#ifdef DIAGNOSTIC
/*
* Although this function is implemented in MI code, it must be in this MD
* header because we don't want this header to include MI includes.
*/
void splassert_fail(int, int, const char *);
extern int splassert_ctl;
void splassert_check(int, const char *);
#define splassert(__wantipl) do { \
if (splassert_ctl > 0) { \
splassert_check(__wantipl, __func__); \
} \
} while (0)
#define splsoftassert(wantipl) splassert(wantipl)
#else
#define splassert(wantipl) do { /* nothing */ } while (0)
#define splsoftassert(wantipl) do { /* nothing */ } while (0)
#endif
void intr_init(void);
#define intr_barrier(x)
#define IST_EDGE 0
#define IST_LEVEL 1
void *intr_establish(uint32_t, int, int, struct cpu_info *,
int (*)(void *), void *, const char *);
#define IPI_NOP 0
#define IPI_DDB (1 << 0)
#define IPI_SETPERF (1 << 1)
void intr_send_ipi(struct cpu_info *, int);
extern void (*_exi)(struct trapframe *);
extern void (*_hvi)(struct trapframe *);
extern void *(*_intr_establish)(uint32_t, int, int, struct cpu_info *,
int (*)(void *), void *, const char *);
extern void (*_intr_send_ipi)(void *);
extern void (*_setipl)(int);
#include <machine/softintr.h>
struct interrupt_controller {
int ic_node;
void *ic_cookie;
void *(*ic_establish)(void *, int *, int, struct cpu_info *,
int (*)(void *), void *, char *);
void (*ic_send_ipi)(void *);
LIST_ENTRY(interrupt_controller) ic_list;
uint32_t ic_phandle;
uint32_t ic_cells;
};
void interrupt_controller_register(struct interrupt_controller *);
void *fdt_intr_establish_idx_cpu(int, int, int, struct cpu_info *,
int (*)(void *), void *, char *);
void *fdt_intr_establish_imap(int, int *, int, int, int (*)(void *),
void *, char *);
void *fdt_intr_establish_imap_cpu(int, int *, int, int,
struct cpu_info *, int (*)(void *), void *, char *);
#endif /* _MACHINE_INTR_H_ */
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