* [PATCH] iommu/io-pgtable-arm-v7s: Need dma-sync while there is no QUIRK_NO_DMA
@ 2017-09-25 9:28 Yong Wu
2017-09-25 9:47 ` Robin Murphy
2017-09-27 14:56 ` Joerg Roedel
0 siblings, 2 replies; 3+ messages in thread
From: Yong Wu @ 2017-09-25 9:28 UTC (permalink / raw)
To: Robin Murphy, Joerg Roedel
Cc: Will Deacon, linux-mediatek, srv_heupstream, linux-kernel,
linux-arm-kernel, iommu, yong.wu
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>
---
Rebased on v4.14-rc1.
---
drivers/iommu/io-pgtable-arm-v7s.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c
index d665d0d..6961fc3 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),
--
1.8.1.1.dirty
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] iommu/io-pgtable-arm-v7s: Need dma-sync while there is no QUIRK_NO_DMA
2017-09-25 9:28 [PATCH] iommu/io-pgtable-arm-v7s: Need dma-sync while there is no QUIRK_NO_DMA Yong Wu
@ 2017-09-25 9:47 ` Robin Murphy
2017-09-27 14:56 ` Joerg Roedel
1 sibling, 0 replies; 3+ messages in thread
From: Robin Murphy @ 2017-09-25 9:47 UTC (permalink / raw)
To: Yong Wu, Joerg Roedel
Cc: Will Deacon, linux-mediatek, srv_heupstream, linux-kernel,
linux-arm-kernel, iommu
On 25/09/17 10:28, Yong Wu wrote:
> 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.
Oops!
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Thanks,
Robin.
> Signed-off-by: Yong Wu <yong.wu@mediatek.com>
> ---
> Rebased on v4.14-rc1.
> ---
> drivers/iommu/io-pgtable-arm-v7s.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c
> index d665d0d..6961fc3 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),
>
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH] iommu/io-pgtable-arm-v7s: Need dma-sync while there is no QUIRK_NO_DMA
2017-09-25 9:28 [PATCH] iommu/io-pgtable-arm-v7s: Need dma-sync while there is no QUIRK_NO_DMA Yong Wu
2017-09-25 9:47 ` Robin Murphy
@ 2017-09-27 14:56 ` Joerg Roedel
1 sibling, 0 replies; 3+ messages in thread
From: Joerg Roedel @ 2017-09-27 14:56 UTC (permalink / raw)
To: Yong Wu
Cc: Robin Murphy, Will Deacon, linux-mediatek, srv_heupstream,
linux-kernel, linux-arm-kernel, iommu
On Mon, Sep 25, 2017 at 05:28:47PM +0800, Yong Wu wrote:
> 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>
Applied to iommu/fixes, thanks.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2017-09-27 14:56 UTC | newest]
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2017-09-25 9:28 [PATCH] iommu/io-pgtable-arm-v7s: Need dma-sync while there is no QUIRK_NO_DMA Yong Wu
2017-09-25 9:47 ` Robin Murphy
2017-09-27 14:56 ` Joerg Roedel
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