From: Jordan Crouse <jcrouse-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
To: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
freedreno-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH 2/7] iommu: Add DOMAIN_ATTR_ENABLE_TTBR1
Date: Tue, 7 Mar 2017 09:39:50 -0700 [thread overview]
Message-ID: <1488904795-870-3-git-send-email-jcrouse@codeaurora.org> (raw)
In-Reply-To: <1488904795-870-1-git-send-email-jcrouse-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
Add a new domain attribute to enable the TTBR1 pagetable for drivers
and devices that support it. This will enabled using a TTBR1 (otherwise
known as a "global" or "system" pagetable for devices that support a split
pagetable scheme for switching pagetables quickly and safely.
Signed-off-by: Jordan Crouse <jcrouse-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
---
include/linux/iommu.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 436dc21..d537cc9 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -114,6 +114,7 @@ enum iommu_attr {
DOMAIN_ATTR_FSL_PAMU_ENABLE,
DOMAIN_ATTR_FSL_PAMUV1,
DOMAIN_ATTR_NESTING, /* two stages of translation */
+ DOMAIN_ATTR_ENABLE_TTBR1,
DOMAIN_ATTR_MAX,
};
--
1.9.1
next prev parent reply other threads:[~2017-03-07 16:39 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-07 16:39 [PATCH 0/7] RFC: iommu/arm-smmu-v2: Dynamic domains Jordan Crouse
[not found] ` <1488904795-870-1-git-send-email-jcrouse-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2017-03-07 16:39 ` [PATCH 1/7] iommu/arm-smmu: save the pgtbl_cfg in the domain Jordan Crouse
2017-03-07 16:39 ` Jordan Crouse [this message]
2017-03-07 16:39 ` [PATCH 3/7] iommu/arm-smmu: Add support for TTBR1 Jordan Crouse
2017-03-07 16:39 ` [PATCH 4/7] iommu: introduce TTBR0 domain attribute Jordan Crouse
2017-03-07 16:39 ` [PATCH 5/7] iommu/arm-smmu: add support for TTBR0 attribute Jordan Crouse
2017-03-07 16:39 ` [PATCH 6/7] iommu: Add dynamic domains Jordan Crouse
2017-03-07 16:39 ` [PATCH 7/7] iommu/arm-smmu: add support for " Jordan Crouse
[not found] ` <1488904795-870-8-git-send-email-jcrouse-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2017-03-07 18:11 ` Mark Rutland
2017-03-07 20:40 ` Jordan Crouse
2017-03-07 17:22 ` [Freedreno] [PATCH 0/7] RFC: iommu/arm-smmu-v2: Dynamic domains Jordan Crouse
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