[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/mca.c b/arch/ia64/kernel/mca.c
index 355af15..967571b 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -289,6 +289,7 @@
#ifdef CONFIG_ACPI
int cpe_vector = -1;
+int ia64_cpe_irq = -1;
static irqreturn_t
ia64_mca_cpe_int_handler (int cpe_irq, void *arg, struct pt_regs *ptregs)
@@ -1444,11 +1445,13 @@
ia64_mca_cpu_init(void *cpu_data)
{
void *pal_vaddr;
+ static int first_time = 1;
- if (smp_processor_id() == 0) {
+ if (first_time) {
void *mca_data;
int cpu;
+ first_time = 0;
mca_data = alloc_bootmem(sizeof(struct ia64_mca_cpu)
* NR_CPUS + KERNEL_STACK_SIZE);
mca_data = (void *)(((unsigned long)mca_data +
@@ -1704,6 +1707,7 @@
desc = irq_descp(irq);
desc->status |= IRQ_PER_CPU;
setup_irq(irq, &mca_cpe_irqaction);
+ ia64_cpe_irq = irq;
}
ia64_mca_register_cpev(cpe_vector);
IA64_MCA_DEBUG("%s: CPEI/P setup and enabled.\n", __FUNCTION__);