From: Nishanth Aravamudan Date: Wed, 15 Sep 2010 08:05:48 +0000 (+0000) Subject: powerpc/viobus: Free TCE table on device release X-Git-Tag: Ubuntu-5.13.0-19.19~29899^2~32 X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=45848e0fc1fce399651b3f480bdeb82cc6d3d15a;p=mirror_ubuntu-jammy-kernel.git 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: Milton Miller Signed-off-by: Nishanth Aravamudan Signed-off-by: Benjamin Herrenschmidt --- diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c index 72db4b021762..d692989a4318 100644 --- a/arch/powerpc/kernel/vio.c +++ b/arch/powerpc/kernel/vio.c @@ -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)); }