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authorHiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>2007-10-19 18:21:11 -0700
committerThomas Gleixner <tglx@linutronix.de>2007-10-23 22:37:22 +0200
commit9b7711f0839d12edac3abfc2f3e4c5bdc660878b (patch)
tree72f364d2799f9797a07d390ec6c9d592bea4440b
parent703530238b580d69d4a112d3ab3d58c0eb1e7246 (diff)
x86: add lapic_shutdown for x86_64
Preperatory patch to allow crash_32/64.c merging Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--arch/x86/kernel/apic_64.c14
-rw-r--r--include/asm-x86/apic_64.h1
2 files changed, 15 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c
index f47bc493dba..f28ccb588fb 100644
--- a/arch/x86/kernel/apic_64.c
+++ b/arch/x86/kernel/apic_64.c
@@ -287,6 +287,20 @@ void disable_local_APIC(void)
apic_write(APIC_SPIV, value);
}
+void lapic_shutdown(void)
+{
+ unsigned long flags;
+
+ if (!cpu_has_apic)
+ return;
+
+ local_irq_save(flags);
+
+ disable_local_APIC();
+
+ local_irq_restore(flags);
+}
+
/*
* This is to verify that we're looking at a real local APIC.
* Check these against your board if the CPUs aren't getting
diff --git a/include/asm-x86/apic_64.h b/include/asm-x86/apic_64.h
index 3c8f21eef0b..2747a11a2b1 100644
--- a/include/asm-x86/apic_64.h
+++ b/include/asm-x86/apic_64.h
@@ -69,6 +69,7 @@ extern void clear_local_APIC (void);
extern void connect_bsp_APIC (void);
extern void disconnect_bsp_APIC (int virt_wire_setup);
extern void disable_local_APIC (void);
+extern void lapic_shutdown (void);
extern int verify_local_APIC (void);
extern void cache_APIC_registers (void);
extern void sync_Arb_IDs (void);