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authorThierry Reding <treding@nvidia.com>2015-03-27 13:07:26 +0300
committerJoerg Roedel <jroedel@suse.de>2015-03-31 17:34:12 +0300
commit836a8ac9fe60fb112e830464868791bf7470e7b6 (patch)
treea6e480fd0547ae4380210bdb28a56914f527ce2a /drivers/iommu
parent471d9144b4ec2a2cbf497af7e186c1fe89b5150e (diff)
downloadlinux-836a8ac9fe60fb112e830464868791bf7470e7b6.tar.xz
iommu/tegra: gart: Set aperture at domain initialization time
The aperture of the domain should always be available, otherwise drivers need to attach first before they can use the aperture geometry. Cc: Hiroshi Doyu <hdoyu@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
-rw-r--r--drivers/iommu/tegra-gart.c25
1 files changed, 14 insertions, 11 deletions
diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
index c48da057dbb1..5f3b68c26b83 100644
--- a/drivers/iommu/tegra-gart.c
+++ b/drivers/iommu/tegra-gart.c
@@ -156,20 +156,10 @@ static inline bool gart_iova_range_valid(struct gart_device *gart,
static int gart_iommu_attach_dev(struct iommu_domain *domain,
struct device *dev)
{
- struct gart_device *gart;
+ struct gart_device *gart = domain->priv;
struct gart_client *client, *c;
int err = 0;
- gart = gart_handle;
- if (!gart)
- 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;
@@ -218,6 +208,19 @@ out:
static int gart_iommu_domain_init(struct iommu_domain *domain)
{
+ struct gart_device *gart;
+
+ gart = gart_handle;
+ if (!gart)
+ 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;
+
return 0;
}