From 9899f826fc90beba4f78083f6230e06cbe1050c9 Mon Sep 17 00:00:00 2001 From: "Siddha, Suresh B" Date: Thu, 7 Dec 2006 02:14:10 +0100 Subject: [PATCH] x86-64: add genapic_force Add genapic_force. Used by the next Intel quirks patch. Signed-off-by: Suresh Siddha Signed-off-by: Andi Kleen Cc: Andi Kleen Cc: "Li, Shaohua" Signed-off-by: Andrew Morton --- arch/x86_64/kernel/genapic.c | 9 ++++++++- include/asm-x86_64/genapic.h | 2 +- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/arch/x86_64/kernel/genapic.c b/arch/x86_64/kernel/genapic.c index 8e78a75d1866..b007433f96bb 100644 --- a/arch/x86_64/kernel/genapic.c +++ b/arch/x86_64/kernel/genapic.c @@ -33,7 +33,7 @@ extern struct genapic apic_flat; extern struct genapic apic_physflat; struct genapic *genapic = &apic_flat; - +struct genapic *genapic_force; /* * Check the APIC IDs in bios_cpu_apicid and choose the APIC mode. @@ -46,6 +46,13 @@ void __init clustered_apic_check(void) u8 cluster_cnt[NUM_APIC_CLUSTERS]; int max_apic = 0; + /* genapic selection can be forced because of certain quirks. + */ + if (genapic_force) { + genapic = genapic_force; + goto print; + } + #if defined(CONFIG_ACPI) /* * Some x86_64 machines use physical APIC mode regardless of how many diff --git a/include/asm-x86_64/genapic.h b/include/asm-x86_64/genapic.h index a0e9a4b93484..b80f4bb5f273 100644 --- a/include/asm-x86_64/genapic.h +++ b/include/asm-x86_64/genapic.h @@ -30,6 +30,6 @@ struct genapic { }; -extern struct genapic *genapic; +extern struct genapic *genapic, *genapic_force, apic_flat; #endif -- cgit v1.2.1