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Commit d8c13085 authored by Joerg Roedel's avatar Joerg Roedel
Browse files

x86/amd-iommu: Rename iommu_flush_device 



This function operates on a struct device, so give it a name
that represents that. As a side effect a new function is
introduced which operates on am iommu and a device-id. It
will be used again in a later patch.

Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent ac0ea6e9

arch/x86/kernel/amd_iommu.c

+16 −10
Original line number Diff line number Diff line
@@ -530,21 +530,27 @@ static int iommu_completion_wait(struct amd_iommu *iommu) 
	return wait_on_sem(&sem);

}



static int iommu_flush_dte(struct amd_iommu *iommu, u16 devid)

{

	struct iommu_cmd cmd;



	build_inv_dte(&cmd, devid);



	return iommu_queue_command(iommu, &cmd);

}



/*

 * Command send function for invalidating a device table entry

 */

static int iommu_flush_device(struct device *dev)

static int device_flush_dte(struct device *dev)

{

	struct amd_iommu *iommu;

	struct iommu_cmd cmd;

	u16 devid;



	devid = get_device_id(dev);

	iommu = amd_iommu_rlookup_table[devid];



	build_inv_dte(&cmd, devid);



	return iommu_queue_command(iommu, &cmd);

	return iommu_flush_dte(iommu, devid);

}



/*
@@ -620,7 +626,7 @@ 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)

		iommu_flush_device(dev_data->dev);

		device_flush_dte(dev_data->dev);



	spin_unlock_irqrestore(&domain->lock, flags);

}
@@ -1424,7 +1430,7 @@ static void do_attach(struct device *dev, struct protection_domain *domain) 
	domain->dev_cnt                 += 1;



	/* Flush the DTE entry */

	iommu_flush_device(dev);

	device_flush_dte(dev);

}



static void do_detach(struct device *dev)
@@ -1447,7 +1453,7 @@ static void do_detach(struct device *dev) 
	clear_dte_entry(devid);



	/* Flush the DTE entry */

	iommu_flush_device(dev);

	device_flush_dte(dev);

}



/*
@@ -1663,7 +1669,7 @@ static int device_change_notifier(struct notifier_block *nb, 
		goto out;

	}



	iommu_flush_device(dev);

	device_flush_dte(dev);

	iommu_completion_wait(iommu);



out:
@@ -2448,7 +2454,7 @@ static void amd_iommu_detach_device(struct iommu_domain *dom, 
	if (!iommu)

		return;



	iommu_flush_device(dev);

	device_flush_dte(dev);

	iommu_completion_wait(iommu);

}