From 9b7711f0839d12edac3abfc2f3e4c5bdc660878b Mon Sep 17 00:00:00 2001 From: Hiroshi Shimamoto Date: Fri, 19 Oct 2007 18:21:11 -0700 Subject: [PATCH] x86: add lapic_shutdown for x86_64 Preperatory patch to allow crash_32/64.c merging Signed-off-by: Hiroshi Shimamoto Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/kernel/apic_64.c | 14 ++++++++++++++ include/asm-x86/apic_64.h | 1 + 2 files changed, 15 insertions(+) diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c index f47bc493db..f28ccb588f 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 3c8f21eef0..2747a11a2b 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); -- 2.39.5