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freebsd-dev/sys/ia64/include/intr.h

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This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
/*-
* Copyright (c) 1998 Doug Rabson
* 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_H_
#define _MACHINE_INTR_H_
Wire up most of the interrupt handling infrastructure. Not sure it works right yet but its enough for the ATA probe to work. The SCSI probes which follow are broken though.
2001-10-05 10:30:09 +00:00
/*
* Layout of the Processor Interrupt Block.
*/
struct ia64_interrupt_block
{
u_int64_t ib_ipi[0x20000]; /* 1Mb of IPI interrupts */
u_int8_t ib_reserved1[0xe0000];
u_int8_t ib_inta; /* Generate INTA cycle */
u_int8_t ib_reserved2[7];
u_int8_t ib_xtp; /* XTP cycle */
u_int8_t ib_reserved3[7];
u_int8_t ib_reserved4[0x1fff0];
};
Don't hardcode the address of the local (S)APIC (aka processor interrupt block). We use the previously hardcoded address as a default only, but will otherwise use whatever ACPI tells us. The address can be found in the MADT table header or in the LAPIC override table entry.
2003-01-05 22:14:30 +00:00
extern u_int64_t ia64_lapic_address;
Wire up most of the interrupt handling infrastructure. Not sure it works right yet but its enough for the ATA probe to work. The SCSI probes which follow are broken though.
2001-10-05 10:30:09 +00:00
#define IA64_INTERRUPT_BLOCK \
Don't hardcode the address of the local (S)APIC (aka processor interrupt block). We use the previously hardcoded address as a default only, but will otherwise use whatever ACPI tells us. The address can be found in the MADT table header or in the LAPIC override table entry.
2003-01-05 22:14:30 +00:00
(struct ia64_interrupt_block *)IA64_PHYS_TO_RR6(ia64_lapic_address)
Wire up most of the interrupt handling infrastructure. Not sure it works right yet but its enough for the ATA probe to work. The SCSI probes which follow are broken though.
2001-10-05 10:30:09 +00:00
o break newbus api: add a new argument of type driver_filter_t to bus_setup_intr() o add an int return code to all fast handlers o retire INTR_FAST/IH_FAST For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current Reviewed by: many Approved by: re@
2007-02-23 12:19:07 +00:00
int ia64_setup_intr(const char *name, int irq, driver_filter_t filter,
Rework the interrupt code and add support for interrupt filtering (INTR_FILTER). This includes: o Save a pointer to the sapic structure and IRQ for every vector, so that we can quickly EOI, mask and unmask the interrupt. o Add locking to the sapic code now that we can reprogram a sapic on multiple CPUs at the same time. o Use u_int for the vector and IRQ. We only have 256 vectors, so using a 64-bit type for it is rather excessive. o Properly handle concurrent registration of a handler for the same vector. Since vectors have a corresponding priority, we should not map IRQs to vectors in a linear fashion, but rather pick a vector that has a priority in line with the interrupt type. This is left for later. The vector/IRQ interchange has been untangled as much as possible to make this easier. Approved by: re (blacket)
2007-07-30 22:29:33 +00:00
driver_intr_t handler, void *arg, enum intr_type flags, void **cookiep);
Wire up most of the interrupt handling infrastructure. Not sure it works right yet but its enough for the ATA probe to work. The SCSI probes which follow are broken though.
2001-10-05 10:30:09 +00:00
int ia64_teardown_intr(void *cookie);
This is the first snapshot of the FreeBSD/ia64 kernel. This kernel will not work on any real hardware (or fully work on any simulator). Much more needs to happen before this is actually functional but its nice to see the FreeBSD copyright message appear in the ia64 simulator.
2000-09-29 13:46:07 +00:00
#endif /* !_MACHINE_INTR_H_ */
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