iommu/pamu: Use dev_iommu_priv_get/set()

Remove the use of dev->archdata.iommu_domain and use the private
per-device pointer provided by IOMMU core code instead.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Link: https://lore.kernel.org/r/20200625130836.1916-8-joro@8bytes.org

diff --git a/drivers/iommu/fsl_pamu_domain.c b/drivers/iommu/fsl_pamu_domain.c
index 928d377..b211076 100644 (file)
--- a/drivers/iommu/fsl_pamu_domain.c
+++ b/drivers/iommu/fsl_pamu_domain.c
@@ -323,7 +323,7 @@ static void remove_device_ref(struct device_domain_info *info, u32 win_cnt)
        pamu_disable_liodn(info->liodn);
        spin_unlock_irqrestore(&iommu_lock, flags);
        spin_lock_irqsave(&device_domain_lock, flags);
-       info->dev->archdata.iommu_domain = NULL;
+       dev_iommu_priv_set(info->dev, NULL);
        kmem_cache_free(iommu_devinfo_cache, info);
        spin_unlock_irqrestore(&device_domain_lock, flags);
 }
@@ -352,7 +352,7 @@ static void attach_device(struct fsl_dma_domain *dma_domain, int liodn, struct d
         * Check here if the device is already attached to domain or not.
         * If the device is already attached to a domain detach it.
         */
-       old_domain_info = dev->archdata.iommu_domain;
+       old_domain_info = dev_iommu_priv_get(dev);
        if (old_domain_info && old_domain_info->domain != dma_domain) {
                spin_unlock_irqrestore(&device_domain_lock, flags);
                detach_device(dev, old_domain_info->domain);
@@ -371,8 +371,8 @@ static void attach_device(struct fsl_dma_domain *dma_domain, int liodn, struct d
         * the info for the first LIODN as all
         * LIODNs share the same domain
         */
-       if (!dev->archdata.iommu_domain)
-               dev->archdata.iommu_domain = info;
+       if (!dev_iommu_priv_get(dev))
+               dev_iommu_priv_set(dev, info);
        spin_unlock_irqrestore(&device_domain_lock, flags);
 }