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authorDavid Woodhouse <dwmw2@shinybook.infradead.org>2005-07-02 13:39:09 +0100
committerDavid Woodhouse <dwmw2@shinybook.infradead.org>2005-07-02 13:39:09 +0100
commitd2f6409584e2c62ffad81690562330ff3bf4a458 (patch)
tree3bdfb97d0b51be2f7f414f2107e97603c1206abb /arch/i386/mach-default/setup.c
parente1b09eba2686eca94a3a188042b518df6044a3c1 (diff)
parent4a89a04f1ee21a7c1f4413f1ad7dcfac50ff9b63 (diff)
Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Diffstat (limited to 'arch/i386/mach-default/setup.c')
-rw-r--r--arch/i386/mach-default/setup.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/i386/mach-default/setup.c b/arch/i386/mach-default/setup.c
index 0aa08eaa8932..e5a1a83d09ef 100644
--- a/arch/i386/mach-default/setup.c
+++ b/arch/i386/mach-default/setup.c
@@ -10,6 +10,14 @@
#include <asm/acpi.h>
#include <asm/arch_hooks.h>
+#ifdef CONFIG_HOTPLUG_CPU
+#define DEFAULT_SEND_IPI (1)
+#else
+#define DEFAULT_SEND_IPI (0)
+#endif
+
+int no_broadcast=DEFAULT_SEND_IPI;
+
/**
* pre_intr_init_hook - initialisation prior to setting up interrupt vectors
*
@@ -104,3 +112,22 @@ void __init mca_nmi_hook(void)
printk("NMI generated from unknown source!\n");
}
#endif
+
+static __init int no_ipi_broadcast(char *str)
+{
+ get_option(&str, &no_broadcast);
+ printk ("Using %s mode\n", no_broadcast ? "No IPI Broadcast" :
+ "IPI Broadcast");
+ return 1;
+}
+
+__setup("no_ipi_broadcast", no_ipi_broadcast);
+
+static int __init print_ipi_mode(void)
+{
+ printk ("Using IPI %s mode\n", no_broadcast ? "No-Shortcut" :
+ "Shortcut");
+ return 0;
+}
+
+late_initcall(print_ipi_mode);