Differential D5730 Diff 14737 sys/arm/arm/machdep_intr.c

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sys/arm/arm/machdep_intr.c

/* $NetBSD: intr.c,v 1.12 2003/07/15 00:24:41 lukem Exp $ */

/*-		/*-
* Copyright (c) 2004 Olivier Houchard.		* Copyright (c) 2015-2016 Svatopluk Kraus
* Copyright (c) 1994-1998 Mark Brinicombe.		* Copyright (c) 2015-2016 Michal Meloun
* All rights reserved.		* All rights reserved.
*		*
* Redistribution and use in source and binary forms, with or without		* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions		* modification, are permitted provided that the following conditions
* are met:		* are met:
* 1. Redistributions of source code must retain the above copyright		* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.		* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright		* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the		* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.		* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Mark Brinicombe
* for the NetBSD Project.
* 4. The name of the company nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*		*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR		* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES		* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.		* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,		* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES		* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR		* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)		* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT		* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY		* 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		* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.		* SUCH DAMAGE.
*
* Soft interrupt and other generic interrupt functions.
*/		*/

#include "opt_platform.h"		#include "opt_platform.h"

#include <sys/cdefs.h>		#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");		__FBSDID("$FreeBSD$");

#include <sys/param.h>		#include <sys/param.h>
Show All 26 Lines	struct intr_ipi {
void * ii_handler_arg;		void * ii_handler_arg;
intr_ipi_send_t * ii_send;		intr_ipi_send_t * ii_send;
void * ii_send_arg;		void * ii_send_arg;
char ii_name[INTR_IPI_NAMELEN];		char ii_name[INTR_IPI_NAMELEN];
u_long * ii_count;		u_long * ii_count;
};		};

static struct intr_ipi ipi_sources[INTR_IPI_COUNT];		static struct intr_ipi ipi_sources[INTR_IPI_COUNT];
u_int ipi_next_num;
#endif		#endif
#endif		#endif

/*		/*
* arm_irq_memory_barrier()		* arm_irq_memory_barrier()
*		*
* Ensure all writes to device memory have reached devices before proceeding.		* Ensure all writes to device memory have reached devices before proceeding.
*		*
▲ Show 20 Lines • Show All 91 Lines • ▼ Show 20 Lines
intr_ipi_send(cpuset_t cpus, u_int ipi)		intr_ipi_send(cpuset_t cpus, u_int ipi)
{		{
struct intr_ipi *ii;		struct intr_ipi *ii;

ii = intr_ipi_lookup(ipi);		ii = intr_ipi_lookup(ipi);
if (ii->ii_count == NULL)		if (ii->ii_count == NULL)
panic("%s: not setup IPI %u", __func__, ipi);		panic("%s: not setup IPI %u", __func__, ipi);

ii->ii_send(ii->ii_send_arg, cpus);		ii->ii_send(ii->ii_send_arg, cpus, ipi);
}		}

void		void
intr_ipi_setup(u_int ipi, const char name, intr_ipi_handler_t hand,		intr_ipi_setup(u_int ipi, const char name, intr_ipi_handler_t hand,
void h_arg, intr_ipi_send_t send, void *s_arg)		void h_arg, intr_ipi_send_t send, void *s_arg)
{		{
struct intr_ipi *ii;		struct intr_ipi *ii;

Show All 10 Lines	intr_ipi_setup(u_int ipi, const char name, intr_ipi_handler_t hand,
strlcpy(ii->ii_name, name, INTR_IPI_NAMELEN);		strlcpy(ii->ii_name, name, INTR_IPI_NAMELEN);
ii->ii_count = intr_ipi_setup_counters(name);		ii->ii_count = intr_ipi_setup_counters(name);
}		}

/*		/*
* Send IPI thru interrupt controller.		* Send IPI thru interrupt controller.
*/		*/
static void		static void
pic_ipi_send(void *arg, cpuset_t cpus)		pic_ipi_send(void *arg, cpuset_t cpus, u_int ipi)
{		{

KASSERT(intr_irq_root_dev != NULL, ("%s: no root attached", __func__));		KASSERT(intr_irq_root_dev != NULL, ("%s: no root attached", __func__));
PIC_IPI_SEND(intr_irq_root_dev, arg, cpus);		PIC_IPI_SEND(intr_irq_root_dev, arg, cpus, ipi);
}		}

/*		/*
* Setup IPI handler on interrupt controller.		* Setup IPI handler on interrupt controller.
*		*
* Not SMP coherent.		* Not SMP coherent.
*/		*/
int		int
intr_pic_ipi_setup(u_int ipi, const char name, intr_ipi_handler_t hand,		intr_pic_ipi_setup(u_int ipi, const char name, intr_ipi_handler_t hand,
void *arg)		void *arg)
{		{
int error;		int error;
struct intr_irqsrc *isrc;		struct intr_irqsrc *isrc;

KASSERT(intr_irq_root_dev != NULL, ("%s: no root attached", __func__));		KASSERT(intr_irq_root_dev != NULL, ("%s: no root attached", __func__));

isrc = intr_isrc_alloc(INTR_ISRCT_NAMESPACE, 0);		error = PIC_IPI_SETUP(intr_irq_root_dev, ipi, &isrc);
isrc->isrc_nspc_type = INTR_IRQ_NSPC_IPI;
isrc->isrc_nspc_num = ipi_next_num;

error = PIC_IPI_SETUP(intr_irq_root_dev, ipi, isrc);
if (error != 0)		if (error != 0)
return (error);		return (error);

ipi_next_num++;		isrc->isrc_handlers++;

isrc->isrc_dev = intr_irq_root_dev;
isrc->isrc_handlers = 1;
intr_ipi_setup(ipi, name, hand, arg, pic_ipi_send, isrc);		intr_ipi_setup(ipi, name, hand, arg, pic_ipi_send, isrc);
return (0);		return (0);
}		}
#endif		#endif
#endif		#endif