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