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| author | Yong Wu <yong.wu@mediatek.com> | 2017-09-25 17:28:47 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2017-09-27 16:56:17 +0200 |
| commit | 5c62c1c67903621cfa715d6f690548ee53301620 (patch) | |
| tree | 80685b02a9ac4983079d24f489563ff6077372d5 /drivers/iommu | |
| parent | e19b205be43d11bff638cad4487008c48d21c103 (diff) | |
| download | linux-5c62c1c67903621cfa715d6f690548ee53301620.tar.bz2 | |
iommu/io-pgtable-arm-v7s: Need dma-sync while there is no QUIRK_NO_DMA
Fix the commit 81b3c2521844 ("iommu/io-pgtable: Introduce explicit
coherency"). If there is no IO_PGTABLE_QUIRK_NO_DMA, we should call
dma_sync_single_for_device for cache synchronization.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Fixes: 81b3c2521844 ('iommu/io-pgtable: Introduce explicit coherency')
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/io-pgtable-arm-v7s.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c index d665d0dc16e8..6961fc393f0b 100644 --- a/drivers/iommu/io-pgtable-arm-v7s.c +++ b/drivers/iommu/io-pgtable-arm-v7s.c @@ -245,7 +245,7 @@ static void __arm_v7s_free_table(void *table, int lvl, static void __arm_v7s_pte_sync(arm_v7s_iopte *ptep, int num_entries, struct io_pgtable_cfg *cfg) { - if (!(cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA)) + if (cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA) return; dma_sync_single_for_device(cfg->iommu_dev, __arm_v7s_dma_addr(ptep), |