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From: Jordan Crouse <jcrouse@codeaurora.org>
To: iommu@lists.linux-foundation.org
Cc: robin.murphy@arm.com, linux-kernel@vger.kernel.org,
	linux-arm-msm@vger.kernel.org, will@kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: [PATCH v1 1/6] iommu: Add DOMAIN_ATTR_PTBASE
Date: Tue, 28 Jan 2020 15:16:05 -0700	[thread overview]
Message-ID: <1580249770-1088-2-git-send-email-jcrouse@codeaurora.org> (raw)
In-Reply-To: <1580249770-1088-1-git-send-email-jcrouse@codeaurora.org>

Add an attribute to return the base address of the pagetable. This is used
by auxiliary domains from arm-smmu to return the address of the pagetable
to the domain so that it can set the appropriate pagetable through it's
own means.

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 b14398b..0e9bcd9 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -128,6 +128,8 @@ enum iommu_attr {
 	DOMAIN_ATTR_DMA_USE_FLUSH_QUEUE,
 	/* Enable split pagetables (for example, TTBR1 on arm-smmu) */
 	DOMAIN_ATTR_SPLIT_TABLES,
+	/* Return the pagetable base address */
+	DOMAIN_ATTR_PTBASE,
 	DOMAIN_ATTR_MAX,
 };
 
-- 
2.7.4
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  reply	other threads:[~2020-01-28 22:16 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-28 22:16 [PATCH v1 0/6] iommu/arm-smmu: Auxiliary domain and per instance pagetables Jordan Crouse
2020-01-28 22:16 ` Jordan Crouse [this message]
2020-01-28 22:16 ` [PATCH v1 2/6] arm/smmu: Add auxiliary domain support for arm-smmuv2 Jordan Crouse
2020-03-18 22:48   ` Will Deacon
2020-03-18 23:43     ` Rob Clark
2020-03-19 15:23       ` Jordan Crouse
2020-05-18 15:18       ` Will Deacon
2020-05-18 15:50         ` Rob Clark
2020-05-20 12:57           ` Will Deacon
2020-05-20 15:13             ` Jordan Crouse
2020-05-20 16:35               ` Rob Clark
2020-01-28 22:16 ` [PATCH v1 3/6] drm/msm/adreno: ADd support for IOMMU auxiliary domains Jordan Crouse
2020-01-28 22:16 ` [PATCH v1 4/6] drm/msm: Add support to create target specific address spaces Jordan Crouse
2020-01-28 22:16 ` [PATCH v1 5/6] drm/msm/gpu: Add ttbr0 to the memptrs Jordan Crouse
2020-01-28 22:16 ` [PATCH v1 6/6] drm/msm/a6xx: Support per-instance pagetables Jordan Crouse

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