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@xxxxxxxxxxxxxx> Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@xxxxxxxxxxxxxx> --- arch/ia64/kernel/irq_ia64.c | 26 ++++++++++++++++++++++++++ 1 files changed, 26 insertions(+) Index: linux-2.6.22-rc5/arch/ia64/kernel/irq_ia64.c =================================================================== --- linux-2.6.22-rc5.orig/arch/ia64/kernel/irq_ia64.c 2007-06-19 15:33:47.000000000 +0900 +++ linux-2.6.22-rc5/arch/ia64/kernel/irq_ia64.c 2007-06-19 15:33:50.000000000 +0900 @@ -227,10 +227,36 @@ 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 static int __reassign_irq_vector(int irq, int cpu) { - To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
![]() |