From 79deb8e511bd6fc8e40add4da75b19df085d9453 Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov Date: Thu, 19 May 2011 16:45:50 -0700 Subject: x86, x2apic: Move the common bits to x2apic.h To eliminate code duplication. Signed-off-by: Cyrill Gorcunov Signed-off-by: Suresh Siddha Cc: steiner@sgi.com Cc: yinghai@kernel.org Link: http://lkml.kernel.org/r/20110519234637.591426753@sbsiddha-MOBL3.sc.intel.com Signed-off-by: Ingo Molnar --- arch/x86/include/asm/x2apic.h | 62 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 arch/x86/include/asm/x2apic.h (limited to 'arch/x86/include') diff --git a/arch/x86/include/asm/x2apic.h b/arch/x86/include/asm/x2apic.h new file mode 100644 index 000000000000..6bf5b8e478c0 --- /dev/null +++ b/arch/x86/include/asm/x2apic.h @@ -0,0 +1,62 @@ +/* + * Common bits for X2APIC cluster/physical modes. + */ + +#ifndef _ASM_X86_X2APIC_H +#define _ASM_X86_X2APIC_H + +#include +#include +#include + +/* + * Need to use more than cpu 0, because we need more vectors + * when MSI-X are used. + */ +static const struct cpumask *x2apic_target_cpus(void) +{ + return cpu_online_mask; +} + +static int x2apic_apic_id_registered(void) +{ + return 1; +} + +/* + * For now each logical cpu is in its own vector allocation domain. + */ +static void x2apic_vector_allocation_domain(int cpu, struct cpumask *retmask) +{ + cpumask_clear(retmask); + cpumask_set_cpu(cpu, retmask); +} + +static void +__x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest) +{ + unsigned long cfg = __prepare_ICR(0, vector, dest); + native_x2apic_icr_write(cfg, apicid); +} + +static unsigned int x2apic_get_apic_id(unsigned long id) +{ + return id; +} + +static unsigned long x2apic_set_apic_id(unsigned int id) +{ + return id; +} + +static int x2apic_phys_pkg_id(int initial_apicid, int index_msb) +{ + return initial_apicid >> index_msb; +} + +static void x2apic_send_IPI_self(int vector) +{ + apic_write(APIC_SELF_IPI, vector); +} + +#endif /* _ASM_X86_X2APIC_H */ -- cgit v1.2.3