198 lines
5.6 KiB
C
198 lines
5.6 KiB
C
/* $NetBSD: intr.h,v 1.4 2023/07/12 06:45:24 mrg Exp $ */
|
|
/* $OpenBSD: intr.h,v 1.26 2009/12/29 13:11:40 jsing Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1998, 2001, 2002 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Charles M. Hannum, and by Jason R. Thorpe, and by Matthew Fredette.
|
|
*
|
|
* 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 _HPPA_INTR_H_
|
|
#define _HPPA_INTR_H_
|
|
|
|
#include <machine/psl.h>
|
|
#include <machine/intrdefs.h>
|
|
|
|
#include <sys/evcnt.h>
|
|
|
|
#ifndef _LOCORE
|
|
|
|
#if defined(_KERNEL) || defined(_KMEMUSER)
|
|
typedef int ipl_t;
|
|
typedef struct {
|
|
ipl_t _ipl;
|
|
} ipl_cookie_t;
|
|
#endif
|
|
|
|
#ifdef _KERNEL
|
|
|
|
struct cpu_info;
|
|
|
|
/*
|
|
* The maximum number of bits in a cpl value/spl mask, the maximum number of
|
|
* bits in an interrupt request register, and the maximum number of interrupt
|
|
* registers.
|
|
*/
|
|
#define HPPA_INTERRUPT_BITS (32)
|
|
#define CPU_NINTS HPPA_INTERRUPT_BITS /* Use this one */
|
|
|
|
/*
|
|
* This describes one HPPA interrupt register.
|
|
*/
|
|
struct hppa_interrupt_register {
|
|
bool ir_iscpu;
|
|
const char *ir_name; /* name for this intr reg */
|
|
struct cpu_info *ir_ci; /* cpu this intr reg */
|
|
|
|
/*
|
|
* The virtual address of the mask, request and level
|
|
* registers.
|
|
*/
|
|
volatile int *ir_mask;
|
|
volatile int *ir_req;
|
|
volatile int *ir_level;
|
|
|
|
/*
|
|
* This array has one entry for each bit in the interrupt request
|
|
* register.
|
|
*
|
|
* If the 24 most significant bits are set, the low 8 bits are the
|
|
* index of the hppa_interrupt_register that this interrupt bit leads
|
|
* to, with zero meaning that the interrupt bit is unused.
|
|
*
|
|
* Otherwise these bits correspond to hppa_interrupt_bits. That is,
|
|
* these bits are ORed to ipending_new in hppa_intr_ipending() when
|
|
* an interrupt happens.
|
|
*
|
|
* Note that this array is indexed by HP bit number, *not* by "normal"
|
|
* bit number. In other words, the least significant bit in the inter-
|
|
* rupt register corresponds to array index 31.
|
|
*/
|
|
|
|
unsigned int ir_bits_map[HPPA_INTERRUPT_BITS];
|
|
|
|
#define IR_BIT_MASK 0xffffff00
|
|
#define IR_BIT_REG(x) (IR_BIT_MASK | (x))
|
|
#define IR_BIT_UNUSED IR_BIT_REG(0)
|
|
#define IR_BIT_USED_P(x) (((x) & IR_BIT_MASK) != IR_BIT_MASK)
|
|
#define IR_BIT_NESTED_P(x) (((x) & IR_BIT_MASK) == IR_BIT_MASK)
|
|
/* true if not used for interrupt or nested interrupt register */
|
|
#define IR_BIT_UNUSED_P(x) ((x) == IR_BIT_MASK)
|
|
|
|
int ir_bits; /* mask of allocatable bit numbers */
|
|
int ir_rbits; /* mask of reserved (for lasi/asp) bit numbers */
|
|
};
|
|
|
|
struct hppa_interrupt_bit {
|
|
|
|
/*
|
|
* The interrupt register this bit is in. Some handlers, e.g
|
|
* apic_intr, don't make use of an hppa_interrupt_register, but are
|
|
* nested.
|
|
*/
|
|
struct hppa_interrupt_register *ib_reg;
|
|
|
|
/*
|
|
* The priority level associated with this bit, e.g, IPL_BIO, IPL_NET,
|
|
* etc.
|
|
*/
|
|
int ib_ipl;
|
|
|
|
/*
|
|
* The spl mask for this bit. This starts out as the spl bit assigned
|
|
* to this particular interrupt, and later gets fleshed out by the mask
|
|
* calculator to be the full mask that we need to raise spl to when we
|
|
* get this interrupt.
|
|
*/
|
|
int ib_spl;
|
|
|
|
/* The interrupt name. */
|
|
char ib_name[16];
|
|
|
|
/* The interrupt event count. */
|
|
struct evcnt ib_evcnt;
|
|
|
|
/*
|
|
* The interrupt handler and argument for this bit. If the argument is
|
|
* NULL, the handler gets the trapframe.
|
|
*/
|
|
int (*ib_handler)(void *);
|
|
void *ib_arg;
|
|
|
|
};
|
|
|
|
void hppa_intr_bootstrap(void);
|
|
void hppa_intr_initialise(struct cpu_info *);
|
|
void hppa_interrupt_register_establish(struct cpu_info *,
|
|
struct hppa_interrupt_register *);
|
|
void * hppa_intr_establish(int, int (*)(void *), void *,
|
|
struct hppa_interrupt_register *, int);
|
|
int hppa_intr_allocate_bit(struct hppa_interrupt_register *, int);
|
|
void hppa_intr_enable(void);
|
|
|
|
/* splraise()/spllower() are in locore.S */
|
|
int splraise(int);
|
|
void spllower(int);
|
|
|
|
/*
|
|
* Miscellaneous
|
|
*/
|
|
#define spl0() spllower(0)
|
|
#define splx(x) spllower(x)
|
|
|
|
static inline ipl_cookie_t
|
|
makeiplcookie(ipl_t ipl)
|
|
{
|
|
|
|
return (ipl_cookie_t){._ipl = ipl};
|
|
}
|
|
|
|
static inline int
|
|
splraiseipl(ipl_cookie_t icookie)
|
|
{
|
|
|
|
return splraise(icookie._ipl);
|
|
}
|
|
|
|
#include <sys/spl.h>
|
|
#endif
|
|
|
|
#define setsoftast(l) ((l)->l_md.md_astpending = 1)
|
|
|
|
#ifdef MULTIPROCESSOR
|
|
|
|
struct cpu_info;
|
|
|
|
void hppa_ipi_init(struct cpu_info *);
|
|
int hppa_ipi_intr(void *arg);
|
|
int hppa_ipi_send(struct cpu_info *, u_long);
|
|
int hppa_ipi_broadcast(u_long);
|
|
#endif
|
|
|
|
#endif /* !_LOCORE */
|
|
|
|
#endif /* !_HPPA_INTR_H_ */
|