From: Jordan Crouse <jcrouse@codeaurora.org>
To: iommu@lists.linux-foundation.org
Cc: robin.murphy@arm.com, will@kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-arm-msm@vger.kernel.org, Joerg Roedel <joro@8bytes.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH v5 1/5] iommu: Add DOMAIN_ATTR_SPLIT_TABLES
Date: Tue, 28 Jan 2020 15:00:15 -0700 [thread overview]
Message-ID: <1580248819-12644-2-git-send-email-jcrouse@codeaurora.org> (raw)
In-Reply-To: <1580248819-12644-1-git-send-email-jcrouse@codeaurora.org>
Add a new attribute to enable and query the state of split pagetables
for the domain.
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
---
include/linux/iommu.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index d1b5f4d..b14398b 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -126,6 +126,8 @@ enum iommu_attr {
DOMAIN_ATTR_FSL_PAMUV1,
DOMAIN_ATTR_NESTING, /* two stages of translation */
DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE,
+ /* Enable split pagetables (for example, TTBR1 on arm-smmu) */
+ DOMAIN_ATTR_SPLIT_TABLES,
DOMAIN_ATTR_MAX,
};
--
2.7.4
next prev parent reply other threads:[~2020-01-28 22:00 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-28 22:00 [PATCH v5 0/5] iommu/arm-smmu: Split pagetable support for arm-smmu-v2 Jordan Crouse
2020-01-28 22:00 ` Jordan Crouse [this message]
2020-01-28 22:00 ` [PATCH v5 2/5] iommu/arm-smmu: Add support for TTBR1 Jordan Crouse
2020-03-18 22:34 ` Will Deacon
2020-01-28 22:00 ` [PATCH v5 3/5] drm/msm: Attach the IOMMU device during initialization Jordan Crouse
2020-01-28 22:00 ` [PATCH v5 4/5] drm/msm: Refactor address space initialization Jordan Crouse
2020-01-28 22:00 ` [PATCH v5 5/5] drm/msm/a6xx: Support split pagetables Jordan Crouse
2020-02-27 18:45 ` [Freedreno] [PATCH v5 0/5] iommu/arm-smmu: Split pagetable support for arm-smmu-v2 Jordan Crouse
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