x86, apic: clean up ->vector_allocation_domain()
- separate the namespace
- remove macros
- move the default vector-allocation-domain to mach-generic
- fix whitespace damage
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/mach-generic/default.c b/arch/x86/mach-generic/default.c
index e89e8c9..6adc3c6 100644
--- a/arch/x86/mach-generic/default.c
+++ b/arch/x86/mach-generic/default.c
@@ -18,6 +18,20 @@
#include <asm/mach-default/mach_mpparse.h>
#include <asm/mach-default/mach_wakecpu.h>
+static void default_vector_allocation_domain(int cpu, struct cpumask *retmask)
+{
+ /*
+ * Careful. Some cpus do not strictly honor the set of cpus
+ * specified in the interrupt destination when using lowest
+ * priority interrupt delivery mode.
+ *
+ * In particular there was a hyperthreading cpu observed to
+ * deliver interrupts to the wrong hyperthread when only one
+ * hyperthread was specified in the interrupt desitination.
+ */
+ *retmask = (cpumask_t) { { [0] = APIC_ALL_CPUS } };
+}
+
/* should be called last. */
static int probe_default(void)
{
@@ -41,7 +55,7 @@
.check_apicid_used = default_check_apicid_used,
.check_apicid_present = default_check_apicid_present,
- .vector_allocation_domain = vector_allocation_domain,
+ .vector_allocation_domain = default_vector_allocation_domain,
.init_apic_ldr = init_apic_ldr,
.ioapic_phys_id_map = ioapic_phys_id_map,