linux-kernel - Re: [PATCH v1] iommu/arm-smmu-v3: Allow default substream bypass with a pasid support

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Date:   Wed, 13 Sep 2023 18:02:50 -0700
From:   Nicolin Chen <nicolinc@...dia.com>
To:     Aahil Awatramani <aahila@...gle.com>, <mshavit@...gle.com>
CC:     <robin.murphy@....com>, <will@...nel.org>, <jgg@...dia.com>,
        <joro@...tes.org>, <shameerali.kolothum.thodi@...wei.com>,
        <yangyicong@...ilicon.com>, <jean-philippe@...aro.org>,
        <linux-arm-kernel@...ts.infradead.org>, <iommu@...ts.linux.dev>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1] iommu/arm-smmu-v3: Allow default substream bypass
 with a pasid support

On Tue, Sep 12, 2023 at 03:13:25PM -0700, Aahil Awatramani wrote:
> 
> We have a use-case for this patch to help in avoiding the map/unmap
> overhead in some cases but still maintaining support for PASIDs.

This has another version [1] rebased on top of Michael's refactor
series [2]. We'd need Michael to respin the refactor sereis and I
will resend mine.

[1] https://lore.kernel.org/linux-iommu/cover.1692959239.git.nicolinc@nvidia.com/
[2] https://lore.kernel.org/linux-iommu/ZPEpl9D%2FCqQWYhzk@Asurada-Nvidia/

Thanks
Nicolin