[IA64] Enable percpu vector domain for IA64_GENERIC
Add per-CPU vector domain support for IA64_GENERIC. It is enabled by adding the "vector=percpu" boot option. 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>
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@ -1859,6 +1859,9 @@ and is between 256 and 4096 characters. It is defined in the file
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vdso=1: enable VDSO (default)
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vdso=1: enable VDSO (default)
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vdso=0: disable VDSO mapping
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vdso=0: disable VDSO mapping
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vector= [IA-64,SMP]
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vector=percpu: enable percpu vector domain
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video= [FB] Frame buffer configuration
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video= [FB] Frame buffer configuration
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See Documentation/fb/modedb.txt.
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See Documentation/fb/modedb.txt.
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@ -267,10 +267,36 @@ void __setup_vector_irq(int cpu)
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}
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}
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}
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}
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#if defined(CONFIG_IA64_GENERIC)
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static enum vector_domain_type {
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VECTOR_DOMAIN_NONE,
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VECTOR_DOMAIN_PERCPU
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} vector_domain_type = VECTOR_DOMAIN_NONE;
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static cpumask_t vector_allocation_domain(int cpu)
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{
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if (vector_domain_type == VECTOR_DOMAIN_PERCPU)
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return cpumask_of_cpu(cpu);
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return CPU_MASK_ALL;
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}
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static int __init parse_vector_domain(char *arg)
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{
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if (!arg)
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return -EINVAL;
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if (!strcmp(arg, "percpu")) {
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vector_domain_type = VECTOR_DOMAIN_PERCPU;
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no_int_routing = 1;
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}
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return 1;
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}
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early_param("vector", parse_vector_domain);
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#else
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static cpumask_t vector_allocation_domain(int cpu)
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static cpumask_t vector_allocation_domain(int cpu)
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{
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{
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return CPU_MASK_ALL;
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return CPU_MASK_ALL;
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}
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}
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#endif
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void destroy_and_reserve_irq(unsigned int irq)
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void destroy_and_reserve_irq(unsigned int irq)
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