2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-25 13:43:55 +08:00
linux-next/arch/x86/include/asm/x2apic.h
Cyrill Gorcunov 79deb8e511 x86, x2apic: Move the common bits to x2apic.h
To eliminate code duplication.

Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
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 <mingo@elte.hu>
2011-05-20 13:41:11 +02:00

63 lines
1.2 KiB
C

/*
* Common bits for X2APIC cluster/physical modes.
*/
#ifndef _ASM_X86_X2APIC_H
#define _ASM_X86_X2APIC_H
#include <asm/apic.h>
#include <asm/ipi.h>
#include <linux/cpumask.h>
/*
* 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 */