[IA64] Add support for vector domain

Add fundamental support for multiple vector domain. There still exists
only one vector domain even with this patch. IRQ migration across
domain is not supported yet by this patch.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 8 insertions, 5 deletions

diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index cf27cfb4d165..e647254c2707 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -354,6 +354,8 @@ iosapic_set_affinity (unsigned int irq, cpumask_t mask)
 
         irq &= (~IA64_IRQ_REDIRECTED);
 
+        /* IRQ migration across domain is not supported yet */
+        cpus_and(mask, mask, irq_to_domain(irq));
         if (cpus_empty(mask))
                 return;
 
@@ -663,6 +665,7 @@ get_target_cpu (unsigned int gsi, int irq)
 #ifdef CONFIG_SMP
         static int cpu = -1;
         extern int cpe_vector;
+        cpumask_t domain = irq_to_domain(irq);
 
         /*
          * In case of vector shared by multiple RTEs, all RTEs that
@@ -701,7 +704,7 @@ get_target_cpu (unsigned int gsi, int irq)
                         goto skip_numa_setup;
 
                 cpu_mask = node_to_cpumask(iosapic_lists[iosapic_index].node);
-
+                cpus_and(cpu_mask, cpu_mask, domain);
                 for_each_cpu_mask(numa_cpu, cpu_mask) {
                         if (!cpu_online(numa_cpu))
                                 cpu_clear(numa_cpu, cpu_mask);
@@ -731,7 +734,7 @@ skip_numa_setup:
         do {
                 if (++cpu >= NR_CPUS)
                         cpu = 0;
-        } while (!cpu_online(cpu));
+        } while (!cpu_online(cpu) || !cpu_isset(cpu, domain));
 
         return cpu_physical_id(cpu);
 #else  /* CONFIG_SMP */
@@ -900,7 +903,7 @@ iosapic_register_platform_intr (u32 int_type, unsigned int gsi,
         switch (int_type) {
               case ACPI_INTERRUPT_PMI:
                 irq = vector = iosapic_vector;
-                bind_irq_vector(irq, vector);
+                bind_irq_vector(irq, vector, CPU_MASK_ALL);
                 /*
                  * since PMI vector is alloc'd by FW(ACPI) not by kernel,
                  * we need to make sure the vector is available
@@ -917,7 +920,7 @@ iosapic_register_platform_intr (u32 int_type, unsigned int gsi,
                 break;
               case ACPI_INTERRUPT_CPEI:
                 irq = vector = IA64_CPE_VECTOR;
-                BUG_ON(bind_irq_vector(irq, vector));
+                BUG_ON(bind_irq_vector(irq, vector, CPU_MASK_ALL));
                 delivery = IOSAPIC_LOWEST_PRIORITY;
                 mask = 1;
                 break;
@@ -953,7 +956,7 @@ iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi,
         unsigned int dest = cpu_physical_id(smp_processor_id());
 
         irq = vector = isa_irq_to_vector(isa_irq);
-        BUG_ON(bind_irq_vector(irq, vector));
+        BUG_ON(bind_irq_vector(irq, vector, CPU_MASK_ALL));
         register_intr(gsi, irq, IOSAPIC_LOWEST_PRIORITY, polarity, trigger);
 
         DBG("ISA: IRQ %u -> GSI %u (%s,%s) -> CPU %d (0x%04x) vector %d\n",