diff mbox series

[v5,08/10] iommu/mediatek: Extend protect pa alignment value

Message ID 20200629071310.1557-9-chao.hao@mediatek.com (mailing list archive)
State New, archived
Headers show
Series MT6779 IOMMU SUPPORT | expand

Commit Message

chao hao June 29, 2020, 7:13 a.m. UTC
Starting with mt6779, iommu needs to extend to 256 bytes from 128
bytes which can send the max number of data for memory protection
pa alignment. So we can use a separate patch to modify it.

Suggested-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Chao Hao <chao.hao@mediatek.com>
---
 drivers/iommu/mtk_iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Matthias Brugger June 29, 2020, 10:17 a.m. UTC | #1
On 29/06/2020 09:13, Chao Hao wrote:
> Starting with mt6779, iommu needs to extend to 256 bytes from 128
> bytes which can send the max number of data for memory protection
> pa alignment. So we can use a separate patch to modify it.
> 
> Suggested-by: Matthias Brugger <matthias.bgg@gmail.com>
> Signed-off-by: Chao Hao <chao.hao@mediatek.com>

Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>

> ---
>  drivers/iommu/mtk_iommu.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
> index 92316c4175a9..8299a3299090 100644
> --- a/drivers/iommu/mtk_iommu.c
> +++ b/drivers/iommu/mtk_iommu.c
> @@ -98,7 +98,7 @@
>  #define F_MMU_INT_ID_LARB_ID(a)			(((a) >> 7) & 0x7)
>  #define F_MMU_INT_ID_PORT_ID(a)			(((a) >> 2) & 0x1f)
>  
> -#define MTK_PROTECT_PA_ALIGN			128
> +#define MTK_PROTECT_PA_ALIGN			256
>  
>  /*
>   * Get the local arbiter ID and the portid within the larb arbiter
>
diff mbox series

Patch

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 92316c4175a9..8299a3299090 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -98,7 +98,7 @@ 
 #define F_MMU_INT_ID_LARB_ID(a)			(((a) >> 7) & 0x7)
 #define F_MMU_INT_ID_PORT_ID(a)			(((a) >> 2) & 0x1f)
 
-#define MTK_PROTECT_PA_ALIGN			128
+#define MTK_PROTECT_PA_ALIGN			256
 
 /*
  * Get the local arbiter ID and the portid within the larb arbiter