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authorYinghai Lu <yhlu.kernel@gmail.com>2008-08-19 20:50:28 -0700
committerIngo Molnar <mingo@elte.hu>2008-10-16 16:52:53 +0200
commit497c9a195db918d3f035e8cb3021e5d4d035516e (patch)
tree73df8764a812f2d6d2bd81d6a1d671008a0d212b /include/asm-x86/mach-default/mach_apic.h
parent199751d715bba5b469ea22adadc68a4166bfa4f5 (diff)
downloadop-kernel-dev-497c9a195db918d3f035e8cb3021e5d4d035516e.zip
op-kernel-dev-497c9a195db918d3f035e8cb3021e5d4d035516e.tar.gz
x86: make 32bit support per_cpu vector
so we can merge io_apic_32.c and io_apic_64.c v2: Use cpu_online_map as target cpus for bigsmp, just like 64-bit is doing. Also remove some unused TARGET_CPUS macro. v3: need to check if desc is null in smp_irq_move_cleanup also migration needs to reset vector too, so copy __target_IO_APIC_irq from 64bit. (the duplication will go away once the two files are unified.) Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/mach-default/mach_apic.h')
-rw-r--r--include/asm-x86/mach-default/mach_apic.h15
1 files changed, 14 insertions, 1 deletions
diff --git a/include/asm-x86/mach-default/mach_apic.h b/include/asm-x86/mach-default/mach_apic.h
index 2a330a4..3c66f2c 100644
--- a/include/asm-x86/mach-default/mach_apic.h
+++ b/include/asm-x86/mach-default/mach_apic.h
@@ -85,6 +85,20 @@ static inline int apicid_to_node(int logical_apicid)
return 0;
#endif
}
+
+static inline cpumask_t vector_allocation_domain(int cpu)
+{
+ /* 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_t domain = { { [0] = APIC_ALL_CPUS, } };
+ return domain;
+}
#endif
static inline unsigned long check_apicid_used(physid_mask_t bitmap, int apicid)
@@ -138,6 +152,5 @@ static inline int check_phys_apicid_present(int boot_cpu_physical_apicid)
static inline void enable_apic_mode(void)
{
}
-
#endif /* CONFIG_X86_LOCAL_APIC */
#endif /* ASM_X86__MACH_DEFAULT__MACH_APIC_H */
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