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author | Thomas Gleixner <tglx@linutronix.de> | 2017-09-13 23:29:21 +0200 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2017-09-25 20:51:50 +0200 |
commit | 64063505835663c67cf18524c46e1eb70d30fb54 (patch) | |
tree | d9a47f2f6d549d3d1855b71f3e3c02dceae39eaa /arch/x86/kernel/apic/apic_common.c | |
parent | x86/apic: Move APIC noop specific functions (diff) | |
download | linux-64063505835663c67cf18524c46e1eb70d30fb54.tar.xz linux-64063505835663c67cf18524c46e1eb70d30fb54.zip |
x86/apic: Sanitize 32/64bit APIC callbacks
The 32bit and the 64bit implementation of default_cpu_present_to_apicid()
and default_check_phys_apicid_present() are exactly the same, but
implemented and located differently.
Move them to common apic code and get rid of the pointless difference.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Juergen Gross <jgross@suse.com>
Tested-by: Yu Chen <yu.c.chen@intel.com>
Acked-by: Juergen Gross <jgross@suse.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Alok Kataria <akataria@vmware.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Rui Zhang <rui.zhang@intel.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Len Brown <lenb@kernel.org>
Link: https://lkml.kernel.org/r/20170913213153.757329991@linutronix.de
Diffstat (limited to 'arch/x86/kernel/apic/apic_common.c')
-rw-r--r-- | arch/x86/kernel/apic/apic_common.c | 20 |
1 files changed, 20 insertions, 0 deletions
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); +} |