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x86/apic: Factor out default vector_allocation_domain() operation

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Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Link: http://lkml.kernel.org/r/20120607131449.GC4759@dhcp-26-207.brq.redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Alexander Gordeev
2012-06-07 15:14:49 +02:00
committed by Ingo Molnar
parent 6398268d2b
commit 9d8e106676
11 changed files with 32 additions and 117 deletions
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21
arch/x86/include/asm/apic.h
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@@ -615,6 +615,27 @@ extern unsigned int
default_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
const struct cpumask *andmask);
static inline void
flat_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.
*/
cpumask_clear(retmask);
cpumask_bits(retmask)[0] = APIC_ALL_CPUS;
}
static inline void
default_vector_allocation_domain(int cpu, struct cpumask *retmask)
{
cpumask_copy(retmask, cpumask_of(cpu));
}
static inline unsigned long default_check_apicid_used(physid_mask_t *map, int apicid)
{
return physid_isset(apicid, *map);