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| author | Nishanth Aravamudan <nacc@us.ibm.com> | 2010-09-15 10:05:48 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-10-13 07:19:21 +0200 |
| commit | 45848e0fc1fce399651b3f480bdeb82cc6d3d15a (patch) | |
| tree | 72bbf790385b305be750ce0cab4e36ceee07913f /arch/powerpc/kernel/vio.c | |
| parent | powerpc/vio: Use put_device() on device_register failure (diff) | |
| download | linux-45848e0fc1fce399651b3f480bdeb82cc6d3d15a.tar.xz linux-45848e0fc1fce399651b3f480bdeb82cc6d3d15a.zip | |
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 <miltonm@bga.com>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/vio.c')
| -rw-r--r-- | arch/powerpc/kernel/vio.c | 7 |
1 files changed, 6 insertions, 1 deletions
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)); } |