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Commit 45848e0f authored by Nishanth Aravamudan's avatar Nishanth Aravamudan Committed by Benjamin Herrenschmidt
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powerpc/viobus: Free TCE table on device release 



Release the TCE table as the XXX suggests, except on FW_FEATURE_ISERIES,
where the tables are allocated globally and reused.

Signed-off-by: default avatarMilton Miller <miltonm@bga.com>
Signed-off-by: default avatarNishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent edea8f6f

arch/powerpc/kernel/vio.c

+6 −1
Original line number Diff line number Diff line
@@ -1184,7 +1184,12 @@ EXPORT_SYMBOL(vio_unregister_driver); 
/* vio_dev refcount hit 0 */

static void __devinit vio_dev_release(struct device *dev)

{

	/* XXX should free TCE table */

	struct iommu_table *tbl = get_iommu_table_base(dev);



	/* iSeries uses a common table for all vio devices */

	if (!firmware_has_feature(FW_FEATURE_ISERIES) && tbl)

		iommu_free_table(tbl, dev->of_node ?

			dev->of_node->full_name : dev_name(dev));

	of_node_put(dev->of_node);

	kfree(to_vio_dev(dev));

}