From: Dmitry Osipenko <digetx@gmail.com>
To: Nicolin Chen <nicoleotsuka@gmail.com>, guillaume.tucker@collabora.com
Cc: Thierry Reding <thierry.reding@gmail.com>,
Joerg Roedel <joro@8bytes.org>,
Jonathan Hunter <jonathanh@nvidia.com>,
Krishna Reddy <vdumpa@nvidia.com>, Will Deacon <will@kernel.org>,
iommu@lists.linux-foundation.org, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 2/2] iommu/tegra-smmu: Revert workaround that was needed for Nyan Big Chromebook
Date: Fri, 2 Apr 2021 17:40:55 +0300 [thread overview]
Message-ID: <50a7e4c7-0e72-534a-a317-366e455213c1@gmail.com> (raw)
In-Reply-To: <20210401085549.GA31146@Asurada-Nvidia>
01.04.2021 11:55, Nicolin Chen пишет:
> On Mon, Mar 29, 2021 at 02:32:56AM +0300, Dmitry Osipenko wrote:
>> The previous commit fixes problem where display client was attaching too
>> early to IOMMU during kernel boot in a multi-platform kernel configuration
>> which enables CONFIG_ARM_DMA_USE_IOMMU=y. The workaround that helped to
>> defer the IOMMU attachment for Nyan Big Chromebook isn't needed anymore,
>> revert it.
>
> Sorry for the late reply. I have been busy with downstream tasks.
>
> I will give them a try by the end of the week. Yet, probably it'd
> be better to include Guillaume also as he has the Nyan platform.
>
Indeed, thanks. Although, I'm pretty sure that it's the same issue which
I reproduced on Nexus 7.
Guillaume, could you please give a test to these patches on Nyan Big?
There should be no EMEM errors in the kernel log with this patches.
https://patchwork.ozlabs.org/project/linux-tegra/list/?series=236215
next prev parent reply other threads:[~2021-04-02 14:41 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-28 23:32 [PATCH v1 1/2] iommu/tegra-smmu: Defer attachment of display clients Dmitry Osipenko
2021-03-28 23:32 ` [PATCH v1 2/2] iommu/tegra-smmu: Revert workaround that was needed for Nyan Big Chromebook Dmitry Osipenko
2021-04-01 8:55 ` Nicolin Chen
2021-04-02 14:40 ` Dmitry Osipenko [this message]
2021-04-23 15:01 ` Guillaume Tucker
2021-04-23 15:23 ` Dmitry Osipenko
2021-04-24 20:27 ` Dmitry Osipenko
2021-04-24 20:41 ` Dmitry Osipenko
2021-04-26 7:14 ` Thierry Reding
2021-04-26 7:39 ` Dmitry Osipenko
2021-04-08 9:42 ` [PATCH v1 1/2] iommu/tegra-smmu: Defer attachment of display clients Nicolin Chen
2021-04-08 13:26 ` Thierry Reding
2021-04-08 14:20 ` Dmitry Osipenko
2021-04-08 12:40 ` Thierry Reding
2021-04-08 14:07 ` Dmitry Osipenko
2021-04-09 12:55 ` Dmitry Osipenko
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