f7fcfdc595
don't send and EOI which works like on amd64/i386 and blocks all
interrupts on the relevant interrupt controller.
o Replace the post_filter and post_inthread hooks registered when
creating the interrupt events with just ic_clear as on sparc64 we
don't need to do any disable->EOI->enable dance to unblock all but
the relevant interrupt while running the filter or handler; just
not clearing the interrupt already has the same effect.
o Merge from amd64/i386:
- Split the intr_table_lock into an sx lock used for most things,
and a spin lock to protect intrcnt_index.
- Add support for binding interrupts to CPUs, including for the
bus_bind_intr(9) interface, a assign_cpu hook and initially
shuffling interrupts arround in a round-robin fashion.
Reviewed by: jhb
MFC after: 1 month
110 lines
3.2 KiB
C
110 lines
3.2 KiB
C
/*-
|
|
* Copyright (c) 2001 Jake Burkholder.
|
|
* All rights reserved.
|
|
*
|
|
* 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 AUTHOR 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 AUTHOR 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _MACHINE_INTR_MACHDEP_H_
|
|
#define _MACHINE_INTR_MACHDEP_H_
|
|
|
|
#define IRSR_BUSY (1 << 5)
|
|
|
|
#define PIL_MAX (1 << 4)
|
|
#define IV_MAX (1 << 11)
|
|
#define IV_NAMLEN 1024
|
|
|
|
#define IR_FREE (PIL_MAX * 2)
|
|
|
|
#define IH_SHIFT PTR_SHIFT
|
|
#define IQE_SHIFT 5
|
|
#define IV_SHIFT 6
|
|
|
|
#define PIL_LOW 1 /* stray interrupts */
|
|
#define PIL_ITHREAD 2 /* interrupts that use ithreads */
|
|
#define PIL_RENDEZVOUS 3 /* smp rendezvous ipi */
|
|
#define PIL_AST 4 /* ast ipi */
|
|
#define PIL_STOP 5 /* stop cpu ipi */
|
|
#define PIL_PREEMPT 6 /* preempt idle thread cpu ipi */
|
|
#define PIL_FAST 13 /* fast interrupts */
|
|
#define PIL_TICK 14
|
|
|
|
#ifndef LOCORE
|
|
|
|
struct trapframe;
|
|
|
|
typedef void ih_func_t(struct trapframe *);
|
|
typedef void iv_func_t(void *);
|
|
|
|
struct intr_request {
|
|
struct intr_request *ir_next;
|
|
iv_func_t *ir_func;
|
|
void *ir_arg;
|
|
u_int ir_vec;
|
|
u_int ir_pri;
|
|
};
|
|
|
|
struct intr_controller {
|
|
void (*ic_enable)(void *);
|
|
void (*ic_disable)(void *);
|
|
void (*ic_assign)(void *);
|
|
void (*ic_clear)(void *);
|
|
};
|
|
|
|
struct intr_vector {
|
|
iv_func_t *iv_func;
|
|
void *iv_arg;
|
|
const struct intr_controller *iv_ic;
|
|
void *iv_icarg;
|
|
struct intr_event *iv_event;
|
|
u_int iv_pri;
|
|
u_int iv_vec;
|
|
u_int iv_mid;
|
|
u_int iv_refcnt;
|
|
u_int iv_pad[2];
|
|
};
|
|
|
|
extern ih_func_t *intr_handlers[];
|
|
extern struct intr_vector intr_vectors[];
|
|
|
|
#ifdef SMP
|
|
void intr_add_cpu(u_int cpu);
|
|
#endif
|
|
int intr_bind(int vec, u_char cpu);
|
|
void intr_setup(int level, ih_func_t *ihf, int pri, iv_func_t *ivf,
|
|
void *iva);
|
|
void intr_init1(void);
|
|
void intr_init2(void);
|
|
int intr_controller_register(int vec, const struct intr_controller *ic,
|
|
void *icarg);
|
|
int inthand_add(const char *name, int vec, int (*filt)(void *),
|
|
void (*handler)(void *), void *arg, int flags, void **cookiep);
|
|
int inthand_remove(int vec, void *cookie);
|
|
|
|
ih_func_t intr_fast;
|
|
|
|
#endif /* !LOCORE */
|
|
|
|
#endif /* !_MACHINE_INTR_MACHDEP_H_ */
|