[PATCH v3 1/3] iommu/io-pgtable: Add ARMv7 short descriptor support

Robin Murphy robin.murphy at arm.com
Wed Feb 17 06:34:08 PST 2016


On 17/02/16 14:31, Will Deacon wrote:
> Hi Robin,
>
> On Thu, Jan 28, 2016 at 01:41:29PM +0000, Robin Murphy wrote:
>> On 27/01/16 01:16, Yong Wu wrote:
>>> On Tue, 2016-01-26 at 17:13 +0000, Robin Murphy wrote:
>>>> Add a nearly-complete ARMv7 short descriptor implementation, omitting
>>>> only a few legacy and CPU-centric aspects which shouldn't be necessary
>>>> for IOMMU API use anyway.
>>>>
>>>> Signed-off-by: Yong Wu <yong.wu at mediatek.com>
>>>> Signed-off-by: Robin Murphy <robin.murphy at arm.com>
>>>
>>> This looks good to me.
>>> And actually our disp/vdec/venc works well on your v2.
>>>
>>> You could choose the two below,
>>> Reviewed-by: Yong Wu <yong.wu at mediatek.com>
>>> Tested-by: Yong Wu <yong.wu at mediatek.com>
>>
>> Great, thanks!
>>
>> Will, it seems to make the most sense for Joerg to pick these patches up
>> directly with the MTK series that depends on them - any objections?
>
> As discussed with Joerg, I'll pick these up and send him a pull request
> containing all the pgtable bits. I've taken the liberty of updating
> MAINTAINERS too, assuming you don't mind being a reviewer for this?

Sure, that's fine by me.

> Will
>
> --->8
>
>  From bccb08d096703bd790fcf2f934553dd9c8503fc9 Mon Sep 17 00:00:00 2001
> From: Will Deacon <will.deacon at arm.com>
> Date: Wed, 17 Feb 2016 14:18:00 +0000
> Subject: [PATCH] MAINTAINERS: update ARM SMMU entry
>
> Ensure that the short-descriptor page table code is included under the
> SMMU entry, and add Robin as a designated reviewer.
>
> Cc: Robin Murphy <robin.murphy at arm.com>

s/Cc/Acked-by/

Robin.

> Signed-off-by: Will Deacon <will.deacon at arm.com>
> ---
>   MAINTAINERS | 2 ++
>   1 file changed, 2 insertions(+)
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index cc2f753cb357..a01bae148b89 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -1793,11 +1793,13 @@ F:	drivers/edac/synopsys_edac.c
>
>   ARM SMMU DRIVERS
>   M:	Will Deacon <will.deacon at arm.com>
> +R:	Robin Murphy <robin.murphy at arm.com>
>   L:	linux-arm-kernel at lists.infradead.org (moderated for non-subscribers)
>   S:	Maintained
>   F:	drivers/iommu/arm-smmu.c
>   F:	drivers/iommu/arm-smmu-v3.c
>   F:	drivers/iommu/io-pgtable-arm.c
> +F:	drivers/iommu/io-pgtable-arm-v7s.c
>
>   ARM64 PORT (AARCH64 ARCHITECTURE)
>   M:	Catalin Marinas <catalin.marinas at arm.com>
>




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