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authorTakashi Iwai <tiwai@suse.de>2012-05-21 12:45:18 +0200
committerTakashi Iwai <tiwai@suse.de>2012-05-21 12:45:18 +0200
commit775b2449bdba7c97dda9f274c92bf7a83dac4142 (patch)
treeb4bee45c13762ea93642b1e38c62de454e51cf5d /arch/x86/kernel/apic/x2apic_phys.c
parent21363cf0ca5c9c62e34e37422fb1d13d70d3de3c (diff)
parent5fb86e5d4a951ddb0474cdfd809380c8e2a8d101 (diff)
Merge branch 'topic/asoc' into for-linus
Diffstat (limited to 'arch/x86/kernel/apic/x2apic_phys.c')
-rw-r--r--arch/x86/kernel/apic/x2apic_phys.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index 8a778db45e3a..991e315f4227 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -24,6 +24,12 @@ static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
{
if (x2apic_phys)
return x2apic_enabled();
+ else if ((acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) &&
+ (acpi_gbl_FADT.flags & ACPI_FADT_APIC_PHYSICAL) &&
+ x2apic_enabled()) {
+ printk(KERN_DEBUG "System requires x2apic physical mode\n");
+ return 1;
+ }
else
return 0;
}