From: anup.patel@broadcom.com (Anup Patel)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/5] iommu: Add capability IOMMU_CAP_BYPASS
Date: Wed, 19 Jul 2017 15:03:54 +0530 [thread overview]
Message-ID: <1500456838-18405-2-git-send-email-anup.patel@broadcom.com> (raw)
In-Reply-To: <1500456838-18405-1-git-send-email-anup.patel@broadcom.com>
Some of the IOMMUs (such as ARM SMMU) are capable of bypassing
transactions for which no IOMMU domain is configured.
This patch adds IOMMU_CAP_BYPASS which can be used by IOMMU
drivers to advertise transation bypass capability of an IOMMU.
Signed-off-by: Anup Patel <anup.patel@broadcom.com>
---
include/linux/iommu.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 2cb54ad..6bbb4cc 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -101,6 +101,10 @@ enum iommu_cap {
transactions */
IOMMU_CAP_INTR_REMAP, /* IOMMU supports interrupt isolation */
IOMMU_CAP_NOEXEC, /* IOMMU_NOEXEC flag */
+ IOMMU_CAP_BYPASS, /*
+ * IOMMU can bypass transactions for
+ * which domain is not configured
+ */
};
/*
--
2.7.4
next prev parent reply other threads:[~2017-07-19 9:33 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-19 9:33 [PATCH 0/5] FlexRM support in VFIO platform Anup Patel
2017-07-19 9:33 ` Anup Patel [this message]
2017-07-19 10:58 ` [PATCH 1/5] iommu: Add capability IOMMU_CAP_BYPASS Robin Murphy
2017-07-19 11:19 ` Anup Patel
2017-07-19 11:23 ` Will Deacon
2017-07-19 11:26 ` Anup Patel
2017-07-19 11:29 ` Robin Murphy
2017-07-19 11:30 ` Will Deacon
2017-07-19 11:33 ` Anup Patel
2017-07-19 9:33 ` [PATCH 2/5] iommu/arm-smmu: add IOMMU_CAP_BYPASS to the ARM SMMU driver Anup Patel
2017-07-19 10:59 ` Robin Murphy
2017-07-19 9:33 ` [PATCH 3/5] iommu/arm-smmu-v3: add IOMMU_CAP_BYPASS to the ARM SMMUv3 driver Anup Patel
2017-07-19 11:00 ` Robin Murphy
2017-07-19 11:23 ` Anup Patel
2017-07-19 11:25 ` Will Deacon
2017-07-19 11:31 ` Anup Patel
2017-07-19 11:33 ` Will Deacon
2017-07-19 11:39 ` Anup Patel
2017-07-19 11:53 ` Will Deacon
2017-07-20 4:02 ` Anup Patel
2017-07-20 9:10 ` Will Deacon
2017-07-20 11:08 ` Anup Patel
2017-07-20 11:17 ` Will Deacon
2017-07-20 11:17 ` Robin Murphy
2017-07-24 17:16 ` Alex Williamson
2017-07-24 17:23 ` Robin Murphy
2017-07-24 19:06 ` Alex Williamson
2017-07-25 8:59 ` Anup Patel
2017-07-19 9:33 ` [PATCH 4/5] vfio: Allow No-IOMMU mode for IOMMUs with bypass capability Anup Patel
2017-07-19 9:33 ` [PATCH 5/5] vfio: platform: reset: Add Broadcom FlexRM reset module Anup Patel
2017-07-19 16:50 ` Scott Branden
2017-07-20 4:05 ` Anup Patel
2017-07-19 10:57 ` [PATCH 0/5] FlexRM support in VFIO platform Robin Murphy
2017-07-19 11:17 ` Anup Patel
2017-07-19 11:25 ` Robin Murphy
2017-07-19 11:28 ` Anup Patel
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