x86 smp: modify send_IPI_mask interface to accept cpumask_t pointers

[pandora-kernel.git] / arch / x86 / mach-generic / summit.c

diff --git a/arch/x86/mach-generic/summit.c b/arch/x86/mach-generic/summit.c
index 6ad6b67..2821ffc 100644 (file)
--- a/arch/x86/mach-generic/summit.c
+++ b/arch/x86/mach-generic/summit.c
@@ -16,6 +16,7 @@
 #include <asm/summit/apic.h>
 #include <asm/summit/ipi.h>
 #include <asm/summit/mpparse.h>
+#include <asm/mach-default/mach_wakecpu.h>
 
 static int probe_summit(void)
 {
@@ -23,4 +24,17 @@ static int probe_summit(void)
        return 0;
 }
 
+static void vector_allocation_domain(int cpu, cpumask_t *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, } };
+}
+
 struct genapic apic_summit = APIC_INIT("summit", probe_summit);