[IA64] support for cpu0 removal
here is the BSP removal support for IA64. Its pretty much the same thing that
was released a while back, but has your feedback incorporated.
- Removed CONFIG_BSP_REMOVE_WORKAROUND and associated cmdline param
- Fixed compile issue with sn2/zx1 due to a undefined fix_b0_for_bsp
- some formatting nits (whitespace etc)
This has been tested on tiger and long back by alex on hp systems as well.
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index 574084f..37ac742 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -631,6 +631,7 @@
{
#ifdef CONFIG_SMP
static int cpu = -1;
+ extern int cpe_vector;
/*
* In case of vector shared by multiple RTEs, all RTEs that
@@ -653,6 +654,11 @@
if (!cpu_online(smp_processor_id()))
return cpu_physical_id(smp_processor_id());
+#ifdef CONFIG_ACPI
+ if (cpe_vector > 0 && vector == IA64_CPEP_VECTOR)
+ return get_cpei_target_cpu();
+#endif
+
#ifdef CONFIG_NUMA
{
int num_cpus, cpu_index, iosapic_index, numa_cpu, i = 0;