diff options
Diffstat (limited to 'arch/ia64/include/asm/xen')
| -rw-r--r-- | arch/ia64/include/asm/xen/irq.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/xen/irq.h b/arch/ia64/include/asm/xen/irq.h new file mode 100644 index 000000000000..a90450983003 --- /dev/null +++ b/arch/ia64/include/asm/xen/irq.h | |||
| @@ -0,0 +1,44 @@ | |||
| 1 | /****************************************************************************** | ||
| 2 | * arch/ia64/include/asm/xen/irq.h | ||
| 3 | * | ||
| 4 | * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp> | ||
| 5 | * VA Linux Systems Japan K.K. | ||
| 6 | * | ||
| 7 | * This program is free software; you can redistribute it and/or modify | ||
| 8 | * it under the terms of the GNU General Public License as published by | ||
| 9 | * the Free Software Foundation; either version 2 of the License, or | ||
| 10 | * (at your option) any later version. | ||
| 11 | * | ||
| 12 | * This program is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 15 | * GNU General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License | ||
| 18 | * along with this program; if not, write to the Free Software | ||
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 20 | * | ||
| 21 | */ | ||
| 22 | |||
| 23 | #ifndef _ASM_IA64_XEN_IRQ_H | ||
| 24 | #define _ASM_IA64_XEN_IRQ_H | ||
| 25 | |||
| 26 | /* | ||
| 27 | * The flat IRQ space is divided into two regions: | ||
| 28 | * 1. A one-to-one mapping of real physical IRQs. This space is only used | ||
| 29 | * if we have physical device-access privilege. This region is at the | ||
| 30 | * start of the IRQ space so that existing device drivers do not need | ||
| 31 | * to be modified to translate physical IRQ numbers into our IRQ space. | ||
| 32 | * 3. A dynamic mapping of inter-domain and Xen-sourced virtual IRQs. These | ||
| 33 | * are bound using the provided bind/unbind functions. | ||
| 34 | */ | ||
| 35 | |||
| 36 | #define XEN_PIRQ_BASE 0 | ||
| 37 | #define XEN_NR_PIRQS 256 | ||
| 38 | |||
| 39 | #define XEN_DYNIRQ_BASE (XEN_PIRQ_BASE + XEN_NR_PIRQS) | ||
| 40 | #define XEN_NR_DYNIRQS (NR_CPUS * 8) | ||
| 41 | |||
| 42 | #define XEN_NR_IRQS (XEN_NR_PIRQS + XEN_NR_DYNIRQS) | ||
| 43 | |||
| 44 | #endif /* _ASM_IA64_XEN_IRQ_H */ | ||