x86/amd-iommu: Use only dev_data for dte and iotlb flushing routines

This patch make the functions flushing the DTE and IOTLBs
only take the dev_data structure instead of the struct
device directly.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

1 files changed, 9 insertions, 14 deletions

diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 9e07ef65a016..0a5b46504b5d 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -693,14 +693,13 @@ void iommu_flush_all_caches(struct amd_iommu *iommu)
 /*
  * Command send function for flushing on-device TLB
  */
-static int device_flush_iotlb(struct device *dev, u64 address, size_t size)
+static int device_flush_iotlb(struct iommu_dev_data *dev_data,
+                              u64 address, size_t size)
 {
-        struct iommu_dev_data *dev_data;
         struct amd_iommu *iommu;
         struct iommu_cmd cmd;
         int qdep;
 
-        dev_data = get_dev_data(dev);
         qdep     = dev_data->ats.qdep;
         iommu    = amd_iommu_rlookup_table[dev_data->devid];
 
@@ -712,23 +711,19 @@ static int device_flush_iotlb(struct device *dev, u64 address, size_t size)
 /*
  * Command send function for invalidating a device table entry
  */
-static int device_flush_dte(struct device *dev)
+static int device_flush_dte(struct iommu_dev_data *dev_data)
 {
-        struct iommu_dev_data *dev_data;
         struct amd_iommu *iommu;
-        struct pci_dev *pdev;
         int ret;
 
-        pdev     = to_pci_dev(dev);
-        dev_data = get_dev_data(dev);
-        iommu    = amd_iommu_rlookup_table[dev_data->devid];
+        iommu = amd_iommu_rlookup_table[dev_data->devid];
 
         ret = iommu_flush_dte(iommu, dev_data->devid);
         if (ret)
                 return ret;
 
         if (dev_data->ats.enabled)
-                ret = device_flush_iotlb(dev, 0, ~0UL);
+                ret = device_flush_iotlb(dev_data, 0, ~0UL);
 
         return ret;
 }
@@ -763,7 +758,7 @@ static void __domain_flush_pages(struct protection_domain *domain,
                 if (!dev_data->ats.enabled)
                         continue;
 
-                ret |= device_flush_iotlb(dev_data->dev, address, size);
+                ret |= device_flush_iotlb(dev_data, address, size);
         }
 
         WARN_ON(ret);
@@ -815,7 +810,7 @@ static void domain_flush_devices(struct protection_domain *domain)
         spin_lock_irqsave(&domain->lock, flags);
 
         list_for_each_entry(dev_data, &domain->dev_list, list)
-                device_flush_dte(dev_data->dev);
+                device_flush_dte(dev_data);
 
         spin_unlock_irqrestore(&domain->lock, flags);
 }
@@ -1586,7 +1581,7 @@ static void do_attach(struct device *dev, struct protection_domain *domain)
         domain->dev_cnt                 += 1;
 
         /* Flush the DTE entry */
-        device_flush_dte(dev);
+        device_flush_dte(dev_data);
 }
 
 static void do_detach(struct device *dev)
@@ -1607,7 +1602,7 @@ static void do_detach(struct device *dev)
         clear_dte_entry(dev_data->devid);
 
         /* Flush the DTE entry */
-        device_flush_dte(dev);
+        device_flush_dte(dev_data);
 }
 
 /*