| /****************************************************************************** |
| * 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 */ |
