[PATCH 02/18] x86: apic - introduce get_physical_broadcast for 64bit

Yinghai Lu
2008-08-24T09:03:47Z

From: Cyrill Gorcunov <gorcunov@gmail.com>

We don't really use it now on 64bit mode but
could reserve it for future.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
---
arch/x86/kernel/apic_64.c | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 8f55127..bb46711 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -244,6 +244,16 @@ void __cpuinit enable_NMI_through_LVT0(void)
apic_write(APIC_LVT0, v);
}

+#ifdef CONFIG_X86_32
+/**
+ * get_physical_broadcast - Get number of physical broadcast IDs
+ */
+int get_physical_broadcast(void)
+{
+ return modern_apic() ? 0xff : 0xf;
+}
+#endif
+
/**
* lapic_get_maxlvt - get the maximum number of local vector table entries
*/
--
1.5.4.5