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Message-ID: <1327603257-17028-7-git-send-email-joerg.roedel@amd.com>
Date: Thu, 26 Jan 2012 19:40:57 +0100
From: Joerg Roedel <joerg.roedel@....com>
To: <iommu@...ts.linux-foundation.org>
CC: <linux-kernel@...r.kernel.org>, Ohad Ben-Cohen <ohad@...ery.com>,
David Woodhouse <dwmw2@...radead.org>,
David Brown <davidb@...eaurora.org>,
Tony Lindgren <tony@...mide.com>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Stuart Yoder <b08248@...il.com>,
Scott Wood <scottwood@...escale.com>,
Hiroshi Doyu <hdoyu@...dia.com>,
Joerg Roedel <joerg.roedel@....com>
Subject: [PATCH 6/6] iommu/tegra: Implement DOMAIN_ATTR_GEOMETRY attribute
From: Hiroshi DOYU <hdoyu@...dia.com>
Implement the attribute for the Tegra IOMMU drivers.
Signed-off-by: Hiroshi DOYU <hdoyu@...dia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@....com>
---
drivers/iommu/tegra-gart.c | 5 +++++
drivers/iommu/tegra-smmu.c | 5 +++++
2 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
index b21598f..b60ee49 100644
--- a/drivers/iommu/tegra-gart.c
+++ b/drivers/iommu/tegra-gart.c
@@ -163,6 +163,11 @@ static int gart_iommu_attach_dev(struct iommu_domain *domain,
return -EINVAL;
domain->priv = gart;
+ domain->geometry.aperture_start = gart->iovmm_base;
+ domain->geometry.aperture_end = gart->iovmm_base +
+ gart->page_count * GART_PAGE_SIZE - 1;
+ domain->geometry.force_aperture = true;
+
client = devm_kzalloc(gart->dev, sizeof(*c), GFP_KERNEL);
if (!client)
return -ENOMEM;
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index eb93c82..9614702 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -807,6 +807,11 @@ found:
spin_unlock_irqrestore(&as->lock, flags);
domain->priv = as;
+ domain->geometry.aperture_start = smmu->iovmm_base;
+ domain->geometry.aperture_end = smmu->iovmm_base +
+ smmu->page_count * SMMU_PAGE_SIZE - 1;
+ domain->geometry.force_aperture = true;
+
dev_dbg(smmu->dev, "smmu_as@%p\n", as);
return 0;
--
1.7.5.4
--
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