x86: use logical apicid in x2apic_cluster's x2apic_cpu_mask_to_apicid_and()

These commits:

	commit 95d313cf1c1ecedc8bec5727b09bdacbf67dfc45
	Author: Mike Travis <travis@sgi.com>
	Date:   Tue Dec 16 17:33:54 2008 -0800

	    x86: Add cpu_mask_to_apicid_and

and
	commit 6eeb7c5a99434596c5953a95baa17d2f085664e3
	Author: Mike Travis <travis@sgi.com>
	Date:   Tue Dec 16 17:33:55 2008 -0800

	    x86: update add-cpu_mask_to_apicid_and to use struct cpumask*

broke interrupt delivery on x2apic platforms.  As x2apic cluster mode uses
logical delivery mode, we need to use logical apicid instead of physical apicid
in x2apic_cpu_mask_to_apicid_and()

Impact: fixes the broken interrupt delivery issue on generic x2apic platforms.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Acked-by: Mike Travis <travis@sgi.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/arch/x86/kernel/genx2apic_cluster.c b/arch/x86/kernel/genx2apic_cluster.c
index d451c9b..6ce497c 100644 (file)
--- a/arch/x86/kernel/genx2apic_cluster.c
+++ b/arch/x86/kernel/genx2apic_cluster.c
@@ -114,7 +114,7 @@ static unsigned int x2apic_cpu_mask_to_apicid(const struct cpumask *cpumask)
        int cpu;
 
        /*
-        * We're using fixed IRQ delivery, can only return one phys APIC ID.
+        * We're using fixed IRQ delivery, can only return one logical APIC ID.
         * May as well be the first.
         */
        cpu = cpumask_first(cpumask);
@@ -130,14 +130,14 @@ static unsigned int x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
        int cpu;
 
        /*
-        * We're using fixed IRQ delivery, can only return one phys APIC ID.
+        * We're using fixed IRQ delivery, can only return one logical APIC ID.
         * May as well be the first.
         */
        for_each_cpu_and(cpu, cpumask, andmask)
                if (cpumask_test_cpu(cpu, cpu_online_mask))
                        break;
        if (cpu < nr_cpu_ids)
-               return per_cpu(x86_cpu_to_apicid, cpu);
+               return per_cpu(x86_cpu_to_logical_apicid, cpu);
        return BAD_APICID;
 }