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Commit 6c542047 authored by Joerg Roedel's avatar Joerg Roedel
Browse files

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: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent ea61cddb

arch/x86/kernel/amd_iommu.c

+9 −14
Original line number Diff line number Diff line
@@ -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];
@@ -712,15 +711,11 @@ 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];



	ret = iommu_flush_dte(iommu, dev_data->devid);
@@ -728,7 +723,7 @@ static int device_flush_dte(struct device *dev) 
		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);

}



/*