42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
/*
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* APIC driver for the IBM "Summit" chipset.
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*/
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#define APIC_DEFINITION 1
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#include <linux/threads.h>
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#include <linux/cpumask.h>
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#include <asm/mpspec.h>
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#include <asm/genapic.h>
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#include <asm/fixmap.h>
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#include <asm/apicdef.h>
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <linux/init.h>
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#include <asm/summit/apicdef.h>
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#include <linux/smp.h>
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#include <asm/summit/apic.h>
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#include <asm/summit/ipi.h>
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#include <asm/summit/mpparse.h>
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#include <asm/mach-default/mach_wakecpu.h>
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static int probe_summit(void)
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{
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/* probed later in mptable/ACPI hooks */
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return 0;
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}
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static cpumask_t vector_allocation_domain(int cpu)
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{
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/* Careful. Some cpus do not strictly honor the set of cpus
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* specified in the interrupt destination when using lowest
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* priority interrupt delivery mode.
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*
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* In particular there was a hyperthreading cpu observed to
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* deliver interrupts to the wrong hyperthread when only one
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* hyperthread was specified in the interrupt desitination.
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*/
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cpumask_t domain = { { [0] = APIC_ALL_CPUS, } };
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return domain;
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}
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struct genapic apic_summit = APIC_INIT("summit", probe_summit);
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