Andrew Turner 550d01a211 Add the GICv3 ITS intrng driver. As the interface to the interrupt
framework has significantly changed the driver has moved to a new file.
While it shares some code with the existing driver this has been modified
to work better with the intrng framework.

This has been tested on the ThunderX servers in the netperf cluster and has
been used to boot them for other testing, including DTrace and hwpmc.

With this we can use intrng on all supported arm64 platforms I was able to
test on. It is expected we will move to intrng soon, and disable the old
arm64 interrupt framework.

Obtained from:	ABT Systems Ltd
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D6437
2016-06-03 10:28:06 +00:00

83 lines
2.7 KiB
C

/*-
* Copyright (c) 2014 Andrew Turner <andrew@FreeBSD.org>
* 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_
#ifdef INTRNG
#ifdef FDT
#include <dev/ofw/openfirm.h>
#endif
#include <sys/intr.h>
#ifndef NIRQ
#define NIRQ 2048 /* XXX - It should be an option. */
#endif
static inline void
arm_irq_memory_barrier(uintptr_t irq)
{
}
#ifdef SMP
void intr_ipi_dispatch(u_int, struct trapframe *);
#endif
#else
int intr_irq_config(u_int, enum intr_trigger, enum intr_polarity);
void intr_irq_handler(struct trapframe *);
int intr_irq_remove_handler(device_t, u_int, void *);
void arm_dispatch_intr(u_int, struct trapframe *);
int arm_enable_intr(void);
void arm_mask_irq(u_int);
void arm_register_root_pic(device_t, u_int);
void arm_register_msi_pic(device_t);
int arm_alloc_msi(device_t, device_t, int, int, int *);
int arm_release_msi(device_t, device_t, int, int *);
int arm_alloc_msix(device_t, device_t, int *);
int arm_release_msix(device_t, device_t, int);
int arm_map_msi(device_t, device_t, int, uint64_t *, uint32_t *);
int arm_map_msix(device_t, device_t, int, uint64_t *, uint32_t *);
int arm_setup_intr(const char *, driver_filter_t *, driver_intr_t,
void *, u_int, enum intr_type, void **);
void arm_unmask_irq(u_int);
#ifdef SMP
int intr_irq_bind(u_int, int);
void arm_init_secondary(void);
void arm_setup_ipihandler(driver_filter_t *, u_int);
void arm_unmask_ipi(u_int);
#endif
#endif
#endif /* _MACHINE_INTR_H */