diff options
Diffstat (limited to 'arch/x86/kernel/apic')
| -rw-r--r-- | arch/x86/kernel/apic/Makefile | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/apic/apic_common.c | 20 |
2 files changed, 21 insertions, 1 deletions
diff --git a/arch/x86/kernel/apic/Makefile b/arch/x86/kernel/apic/Makefile index 8e63ebdcbd0b..bd65ce2e768e 100644 --- a/arch/x86/kernel/apic/Makefile +++ b/arch/x86/kernel/apic/Makefile @@ -6,7 +6,7 @@ # In particualr, smp_apic_timer_interrupt() is called in random places. KCOV_INSTRUMENT := n -obj-$(CONFIG_X86_LOCAL_APIC) += apic.o apic_noop.o ipi.o vector.o +obj-$(CONFIG_X86_LOCAL_APIC) += apic.o apic_common.o apic_noop.o ipi.o vector.o obj-y += hw_nmi.o obj-$(CONFIG_X86_IO_APIC) += io_apic.o diff --git a/arch/x86/kernel/apic/apic_common.c b/arch/x86/kernel/apic/apic_common.c new file mode 100644 index 000000000000..2a084d48db37 --- /dev/null +++ b/arch/x86/kernel/apic/apic_common.c @@ -0,0 +1,20 @@ +/* + * Common functions shared between the various APIC flavours + * + * SPDX-License-Identifier: GPL-2.0 + */ +#include <linux/irq.h> +#include <asm/apic.h> + +int default_cpu_present_to_apicid(int mps_cpu) +{ + if (mps_cpu < nr_cpu_ids && cpu_present(mps_cpu)) + return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu); + else + return BAD_APICID; +} + +int default_check_phys_apicid_present(int phys_apicid) +{ + return physid_isset(phys_apicid, phys_cpu_present_map); +} |