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| author | Nishanth Aravamudan <nacc@us.ibm.com> | 2010-10-18 07:27:03 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2010-11-29 15:48:21 +1100 |
| commit | a8daac8a517dacfea951424f67c1f07e1f76b2ad (patch) | |
| tree | 32dff1b065dda352cbf3078ba31be685da87166a | |
| parent | 34c4d012554ed8c99b3fb25baea9bab3507e9f76 (diff) | |
| download | linux-a8daac8a517dacfea951424f67c1f07e1f76b2ad.tar.bz2 | |
powerpc/pseries: iommu cleanup
No need to initialize per-cpu pointer to NULL, it is the default.
Direct dma ops and no setup are the defaults, no need to set for
iommu-off.
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Reviewed-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
| -rw-r--r-- | arch/powerpc/platforms/pseries/iommu.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index fa2906a103dd..9fecb313a4c9 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -140,7 +140,7 @@ static int tce_build_pSeriesLP(struct iommu_table *tbl, long tcenum, return ret; } -static DEFINE_PER_CPU(u64 *, tce_page) = NULL; +static DEFINE_PER_CPU(u64 *, tce_page); static int tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum, long npages, unsigned long uaddr, @@ -589,13 +589,8 @@ static struct notifier_block iommu_reconfig_nb = { /* These are called very early. */ void iommu_init_early_pSeries(void) { - if (of_chosen && of_get_property(of_chosen, "linux,iommu-off", NULL)) { - /* Direct I/O, IOMMU off */ - ppc_md.pci_dma_dev_setup = NULL; - ppc_md.pci_dma_bus_setup = NULL; - set_pci_dma_ops(&dma_direct_ops); + if (of_chosen && of_get_property(of_chosen, "linux,iommu-off", NULL)) return; - } if (firmware_has_feature(FW_FEATURE_LPAR)) { if (firmware_has_feature(FW_FEATURE_MULTITCE)) { |