WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-ia64-devel

[Xen-ia64-devel] [PATCH 19/23] ia64/pv_ops/xen: define the nubmer of irq

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

Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx>
---
 arch/ia64/kernel/nr-irqs.c |    1 +
 include/asm-ia64/xen/irq.h |   44 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+), 0 deletions(-)
 create mode 100644 include/asm-ia64/xen/irq.h

diff --git a/arch/ia64/kernel/nr-irqs.c b/arch/ia64/kernel/nr-irqs.c
index 1ae0491..bf89a8f 100644
--- a/arch/ia64/kernel/nr-irqs.c
+++ b/arch/ia64/kernel/nr-irqs.c
@@ -10,6 +10,7 @@
 #include <linux/kbuild.h>
 #include <linux/threads.h>
 #include <asm-ia64/native/irq.h>
+#include <asm-ia64/xen/irq.h>
 
 void foo(void)
 {
diff --git a/include/asm-ia64/xen/irq.h b/include/asm-ia64/xen/irq.h
new file mode 100644
index 0000000..3a5a15c
--- /dev/null
+++ b/include/asm-ia64/xen/irq.h
@@ -0,0 +1,44 @@
+/******************************************************************************
+ * include/asm-ia64/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 */
-- 
1.5.3


_______________________________________________
Xen-ia64-devel mailing list
Xen-ia64-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-ia64-devel

<Prev in Thread] Current Thread [Next in Thread>