This patch changes in struct tegra_smmu_group to use swgrp
pointer instead of swgroup, as a preparational change for
the "mappings" debugfs feature.
Acked-by: Thierry Reding <treding@xxxxxxxxxx>
Signed-off-by: Nicolin Chen <nicolinc@xxxxxxxxxx>
---
drivers/iommu/tegra-smmu.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index 42af216ef65c..b0a04cc8f560 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -23,8 +23,8 @@ struct tegra_smmu_group {
struct list_head list;
struct tegra_smmu *smmu;
const struct tegra_smmu_group_soc *soc;
+ const struct tegra_smmu_swgroup *swgrp;
struct iommu_group *grp;
- unsigned int swgroup;
};
struct tegra_smmu {
@@ -897,18 +897,22 @@ static struct iommu_group *tegra_smmu_device_group(struct device *dev)
struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev);
struct tegra_smmu *smmu = dev_iommu_priv_get(dev);
const struct tegra_smmu_group_soc *soc;
+ const struct tegra_smmu_swgroup *swgrp;
unsigned int swgroup = fwspec->ids[0];
struct tegra_smmu_group *group;
struct iommu_group *grp;
+ /* Find swgrp according to the swgroup id */
+ swgrp = tegra_smmu_find_swgrp(smmu, swgroup);
+
/* Find group_soc associating with swgroup */
soc = tegra_smmu_find_group_soc(smmu, swgroup);
mutex_lock(&smmu->lock);
- /* Find existing iommu_group associating with swgroup or group_soc */
+ /* Find existing iommu_group associating with swgrp or group_soc */
list_for_each_entry(group, &smmu->groups, list)
- if ((group->swgroup == swgroup) || (soc && group->soc == soc)) {
+ if ((swgrp && group->swgrp == swgrp) || (soc && group->soc == soc)) {
grp = iommu_group_ref_get(group->grp);
mutex_unlock(&smmu->lock);
return grp;
@@ -921,7 +925,7 @@ static struct iommu_group *tegra_smmu_device_group(struct device *dev)
}
INIT_LIST_HEAD(&group->list);
- group->swgroup = swgroup;
+ group->swgrp = swgrp;
group->smmu = smmu;
group->soc = soc;
--
2.17.1
