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    x86/irq: Save destination CPU ID in irq_cfg · 5f0052f9
    Jiang Liu 提交于
    Cache destination CPU APIC ID into struct irq_cfg when assigning vector
    for interrupt. Upper layer just needs to read the cached APIC ID instead
    of calling apic->cpu_mask_to_apicid_and(), it helps to hide APIC driver
    details from IOAPIC/HPET/MSI drivers..
    Signed-off-by: NJiang Liu <jiang.liu@linux.intel.com>
    Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
    Cc: David Cohen <david.a.cohen@linux.intel.com>
    Cc: Sander Eikelenboom <linux@eikelenboom.it>
    Cc: David Vrabel <david.vrabel@citrix.com>
    Cc: Tony Luck <tony.luck@intel.com>
    Cc: Joerg Roedel <joro@8bytes.org>
    Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Cc: Bjorn Helgaas <bhelgaas@google.com>
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
    Cc: Randy Dunlap <rdunlap@infradead.org>
    Cc: Yinghai Lu <yinghai@kernel.org>
    Cc: Borislav Petkov <bp@alien8.de>
    Cc: Dimitri Sivanich <sivanich@sgi.com>
    Link: http://lkml.kernel.org/r/1428905519-23704-2-git-send-email-jiang.liu@linux.intel.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
    5f0052f9
vector.c 16.2 KB