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iommu: dmar: Provide helper to copy shared irte fields 

Instead of open coding, provide a helper function to copy the shared
irte fields.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: jiang.liu@linux.intel.com
Cc: iommu@lists.linux-foundation.org
Cc: joro@8bytes.org
Cc: dwmw2@infradead.org
Link: http://lkml.kernel.org/r/1433827237-3382-4-git-send-email-feng.wu@intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
hifive-unleashed-5.1
Thomas Gleixner 2015-06-09 13:20:30 +08:00
parent 3bf1747222
commit bf56027ff4
1 changed files with 12 additions and 0 deletions
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12
include/linux/dmar.h
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@ -249,6 +249,18 @@ struct irte {
};
};
static inline void dmar_copy_shared_irte(struct irte *dst, struct irte *src)
{
dst->present = src->present;
dst->fpd = src->fpd;
dst->avail = src->avail;
dst->pst = src->pst;
dst->vector = src->vector;
dst->sid = src->sid;
dst->sq = src->sq;
dst->svt = src->svt;
}
#define PDA_LOW_BIT 26
#define PDA_HIGH_BIT 32