lkml.org 
[lkml]   [2012]   [Jan]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 6/6] iommu/tegra: Implement DOMAIN_ATTR_GEOMETRY attribute
Date
From: Hiroshi DOYU <hdoyu@nvidia.com>

Implement the attribute for the Tegra IOMMU drivers.

Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.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



\
 
 \ /
  Last update: 2012-01-26 19:45    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site