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ia64/pv_ops/xen: define the nubmer of irqs which xen needs.

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define arch/ia64/include/asm/xen/irq.h to define the number of
irqs which xen needs.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Isaku Yamahata 2008-10-17 11:18:06 +09:00 committed by Tony Luck
parent bcdd48739d
commit 78c2ae4a0e
2 changed files with 45 additions and 0 deletions
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44
arch/ia64/include/asm/xen/irq.h Normal file
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@ -0,0 +1,44 @@
/******************************************************************************
* arch/ia64/include/asm/xen/irq.h
*
* Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
* VA Linux Systems Japan K.K.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#ifndef _ASM_IA64_XEN_IRQ_H
#define _ASM_IA64_XEN_IRQ_H
/*
* The flat IRQ space is divided into two regions:
* 1. A one-to-one mapping of real physical IRQs. This space is only used
* if we have physical device-access privilege. This region is at the
* start of the IRQ space so that existing device drivers do not need
* to be modified to translate physical IRQ numbers into our IRQ space.
* 3. A dynamic mapping of inter-domain and Xen-sourced virtual IRQs. These
* are bound using the provided bind/unbind functions.
*/
#define XEN_PIRQ_BASE 0
#define XEN_NR_PIRQS 256
#define XEN_DYNIRQ_BASE (XEN_PIRQ_BASE + XEN_NR_PIRQS)
#define XEN_NR_DYNIRQS (NR_CPUS * 8)
#define XEN_NR_IRQS (XEN_NR_PIRQS + XEN_NR_DYNIRQS)
#endif /* _ASM_IA64_XEN_IRQ_H */

1
arch/ia64/kernel/nr-irqs.c
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@ -10,6 +10,7 @@
#include <linux/kbuild.h>
#include <linux/threads.h>
#include <asm/native/irq.h>
#include <asm/xen/irq.h>
void foo(void)
{