From: Feng Wu <feng.wu@intel.com>
To: joro@8bytes.org, dwmw2@infradead.org
Cc: tglx@linutronix.de, jiang.liu@linux.intel.com,
iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
Feng Wu <feng.wu@intel.com>
Subject: [v6 5/8] iommu, x86: Add cap_pi_support() to detect VT-d PI capability
Date: Thu, 21 May 2015 14:59:12 +0800 [thread overview]
Message-ID: <1432191555-3516-6-git-send-email-feng.wu@intel.com> (raw)
In-Reply-To: <1432191555-3516-1-git-send-email-feng.wu@intel.com>
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>
Acked-by: David Woodhouse <David.Woodhouse@intel.com>
---
include/linux/intel-iommu.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index 0af9b03..0c251be 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -87,6 +87,7 @@ static inline void dmar_writeq(void __iomem *addr, u64 val)
/*
* Decoding Capability Register
*/
+#define cap_pi_support(c) (((c) >> 59) & 1)
#define cap_read_drain(c) (((c) >> 55) & 1)
#define cap_write_drain(c) (((c) >> 54) & 1)
#define cap_max_amask_val(c) (((c) >> 48) & 0x3f)
--
2.1.0
prev parent reply other threads:[~2015-05-21 6:59 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-21 6:59 [v6 0/8] Add VT-d Posted-Interrupts support - IOMMU part Feng Wu
[not found] ` <1432191555-3516-1-git-send-email-feng.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-05-21 6:59 ` [v6 1/8] iommu: Add new member capability to struct irq_remap_ops Feng Wu
2015-05-21 6:59 ` [v6 2/8] iommu: dmar: Extend struct irte for VT-d Posted-Interrupts Feng Wu
2015-05-21 6:59 ` [v6 3/8] iommu, x86: Implement irq_set_vcpu_affinity for intel_ir_chip Feng Wu
[not found] ` <1432191555-3516-4-git-send-email-feng.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-05-21 10:48 ` Thomas Gleixner
2015-05-22 1:02 ` Wu, Feng
2015-05-21 6:59 ` [v6 4/8] iommu, x86: No need to migrating irq for VT-d Posted-Interrupts Feng Wu
2015-05-21 6:59 ` [v6 6/8] iommu, x86: Setup Posted-Interrupts capability for Intel iommu Feng Wu
[not found] ` <1432191555-3516-7-git-send-email-feng.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-05-21 10:51 ` Thomas Gleixner
2015-05-22 1:03 ` Wu, Feng
2015-05-21 6:59 ` [v6 7/8] iommu, x86: define irq_remapping_cap() Feng Wu
2015-05-21 6:59 ` [v6 8/8] iommu, x86: Properly handler PI for IOMMU hotplug Feng Wu
2015-05-21 6:59 ` Feng Wu [this message]
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