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Diffstat (limited to 'arch/powerpc/platforms/pseries/xics.c')
-rw-r--r--arch/powerpc/platforms/pseries/xics.c20
1 files changed, 13 insertions, 7 deletions
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index d80f193cd87..f5f79196721 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -191,11 +191,7 @@ static int get_irq_server(unsigned int virq, cpumask_t cpumask,
return default_server;
}
#else
-static int get_irq_server(unsigned int virq, cpumask_t cpumask,
- unsigned int strict_check)
-{
- return default_server;
-}
+#define get_irq_server(virq, cpumask, strict_check) (default_server)
#endif
static void xics_unmask_irq(unsigned int virq)
@@ -788,9 +784,13 @@ static void xics_set_cpu_priority(unsigned char cppr)
{
struct xics_cppr *os_cppr = &__get_cpu_var(xics_cppr);
- BUG_ON(os_cppr->index != 0);
+ /*
+ * we only really want to set the priority when there's
+ * just one cppr value on the stack
+ */
+ WARN_ON(os_cppr->index != 0);
- os_cppr->stack[os_cppr->index] = cppr;
+ os_cppr->stack[0] = cppr;
if (firmware_has_feature(FW_FEATURE_LPAR))
lpar_cppr_info(cppr);
@@ -825,8 +825,14 @@ void xics_setup_cpu(void)
void xics_teardown_cpu(void)
{
+ struct xics_cppr *os_cppr = &__get_cpu_var(xics_cppr);
int cpu = smp_processor_id();
+ /*
+ * we have to reset the cppr index to 0 because we're
+ * not going to return from the IPI
+ */
+ os_cppr->index = 0;
xics_set_cpu_priority(0);
/* Clear any pending IPI request */