summaryrefslogtreecommitdiffstats
path: root/drivers/iommu
diff options
context:
space:
mode:
authorYong Wu <yong.wu@mediatek.com>2017-09-25 17:28:47 +0800
committerJoerg Roedel <jroedel@suse.de>2017-09-27 16:56:17 +0200
commit5c62c1c67903621cfa715d6f690548ee53301620 (patch)
tree80685b02a9ac4983079d24f489563ff6077372d5 /drivers/iommu
parente19b205be43d11bff638cad4487008c48d21c103 (diff)
downloadlinux-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.c2
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),