From: Thierry Reding <treding@nvidia.com>
Date: Fri, 27 Mar 2015 10:07:25 +0000 (+0100)
Subject: iommu/tegra: Setup aperture
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=471d9144b4ec2a2cbf497af7e186c1fe89b5150e;p=deliverable%2Flinux.git

iommu/tegra: Setup aperture

Each address space in the Tegra SMMU provides 4 GiB worth of addresses.

Cc: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---

diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index 6e134c7c227f..d8418b54619e 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -266,6 +266,11 @@ static int tegra_smmu_domain_init(struct iommu_domain *domain)
 
 	domain->priv = as;
 
+	/* setup aperture */
+	domain->geometry.aperture_start = 0;
+	domain->geometry.aperture_end = 0xffffffff;
+	domain->geometry.force_aperture = true;
+
 	return 0;
 }