From: Feng Wu <feng.wu@intel.com>
Date: Tue, 9 Jun 2015 05:20:34 +0000 (+0800)
Subject: iommu, x86: Add cap_pi_support() to detect VT-d PI capability
X-Git-Tag: omap-for-v4.3/legacy-v2-signed~199^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=07c09787b26db724c94a912a572a9a4fa66008f3;p=pandora-kernel.git

iommu, x86: Add cap_pi_support() to detect VT-d PI capability

Add helper function to detect VT-d Posted-Interrupts capability.

Signed-off-by: Feng Wu <feng.wu@intel.com>
Reviewed-by: Jiang Liu <jiang.liu@linux.intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David Woodhouse <David.Woodhouse@intel.com>
Acked-by: Joerg Roedel <joro@8bytes.org>
Cc: iommu@lists.linux-foundation.org
Cc: dwmw2@infradead.org
Link: http://lkml.kernel.org/r/1433827237-3382-8-git-send-email-feng.wu@intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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