45 lines
1.7 KiB
C
45 lines
1.7 KiB
C
|
/******************************************************************************
|
||
|
|
* 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 */
|