From d080d397f97dd185ff48ef933be09a104d47fba5 Mon Sep 17 00:00:00 2001 From: Yasuaki Ishimatsu Date: Tue, 17 Jul 2007 21:22:55 +0900 Subject: [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 Signed-off-by: Yasuaki Ishimatsu Signed-off-by: Tony Luck --- arch/ia64/kernel/irq_ia64.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c index 22806b94025..5cb804f9a1f 100644 --- a/arch/ia64/kernel/irq_ia64.c +++ b/arch/ia64/kernel/irq_ia64.c @@ -267,10 +267,36 @@ void __setup_vector_irq(int cpu) } } +#if defined(CONFIG_IA64_GENERIC) +static enum vector_domain_type { + VECTOR_DOMAIN_NONE, + VECTOR_DOMAIN_PERCPU +} vector_domain_type = VECTOR_DOMAIN_NONE; + +static cpumask_t vector_allocation_domain(int cpu) +{ + if (vector_domain_type == VECTOR_DOMAIN_PERCPU) + return cpumask_of_cpu(cpu); + return CPU_MASK_ALL; +} + +static int __init parse_vector_domain(char *arg) +{ + if (!arg) + return -EINVAL; + if (!strcmp(arg, "percpu")) { + vector_domain_type = VECTOR_DOMAIN_PERCPU; + no_int_routing = 1; + } + return 1; +} +early_param("vector", parse_vector_domain); +#else static cpumask_t vector_allocation_domain(int cpu) { return CPU_MASK_ALL; } +#endif void destroy_and_reserve_irq(unsigned int irq) -- cgit v1.2.3