korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-12-04 01:24:12 +08:00
Code Issues Packages Projects Releases Wiki Activity

iommu/io-pgtable-arm-v7s: Need dma-sync while there is no QUIRK_NO_DMA

Browse Source 
Fix the commit 81b3c25218 ("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: 81b3c25218 ('iommu/io-pgtable: Introduce explicit coherency')
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
This commit is contained in:
Yong Wu 2017-09-25 17:28:47 +08:00 committed by Joerg Roedel
parent e19b205be4
commit 5c62c1c679
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/iommu/io-pgtable-arm-v7s.c
View File

@ -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),