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authorBaoquan He <bhe@redhat.com>2014-05-05 08:48:25 +0400
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-05-16 18:01:16 +0400
commit247dba58a19a34f01c363b3aec4d2c21cfb87d8e (patch)
tree27d02965acf19d517a45d61a02937be1224a673b /arch/ia64
parent68c8829d0602d2a217f21b7c9dfa40ec21fea019 (diff)
downloadlinux-247dba58a19a34f01c363b3aec4d2c21cfb87d8e.tar.xz
ACPI / ia64: introduce variable acpi_lapic into ia64
This variable was defined and assigned in x86, is used to indicate whether LAPIC exists in MADT. Now introduce it into ia64 to help make correct judgment when get information for ACPI processor later. Signed-off-by: Baoquan He <bhe@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/include/asm/acpi.h1
-rw-r--r--arch/ia64/kernel/acpi.c3
2 files changed, 4 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index d651102a4d45..b47821931ca6 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -85,6 +85,7 @@ ia64_acpi_release_global_lock (unsigned int *lock)
((Acq) = ia64_acpi_release_global_lock(&facs->global_lock))
#ifdef CONFIG_ACPI
+extern int acpi_lapic;
#define acpi_disabled 0 /* ACPI always enabled on IA64 */
#define acpi_noirq 0 /* ACPI always enabled on IA64 */
#define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 0d407b300762..615ef81def49 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -56,6 +56,7 @@
#define PREFIX "ACPI: "
+int acpi_lapic;
unsigned int acpi_cpei_override;
unsigned int acpi_cpei_phys_cpuid;
@@ -676,6 +677,8 @@ int __init early_acpi_boot_init(void)
if (ret < 1)
printk(KERN_ERR PREFIX
"Error parsing MADT - no LAPIC entries\n");
+ else
+ acpi_lapic = 1;
#ifdef CONFIG_SMP
if (available_cpus == 0) {