From: Cyrill Gorcunov <gorcunov@gmail.com>
Date: Sun, 24 Aug 2008 09:01:40 +0000 (-0700)
Subject: x86: apic - introduce get_physical_broadcast for 64bit
X-Git-Tag: firefly_0821_release~17188^2~89
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=7c37e48b5125fdb0acac846a0a3af42806175d44;p=firefly-linux-kernel-4.4.55.git

x86: apic - introduce get_physical_broadcast for 64bit

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>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index 8f551276681e..bb46711a0b1e 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
  */