Re: [PATCH 0/2] iommu/arm-smmu: Allow client devices to select direct mapping

From: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
To: Matthias Kaehlcke <mka@chromium.org>,
	Jordan Crouse <jcrouse@codeaurora.org>,
	Joerg Roedel <joro@8bytes.org>
Cc: Will Deacon <will@kernel.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Joerg Roedel <joro@8bytes.org>, Rob Clark <robdclark@gmail.com>,
	iommu@lists.linux-foundation.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	Stephen Boyd <swboyd@chromium.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Rajendra Nayak <rnayak@codeaurora.org>,
	Tomasz Figa <tfiga@chromium.org>
Subject: Re: [PATCH 0/2] iommu/arm-smmu: Allow client devices to select direct mapping
Date: Wed, 15 Apr 2020 15:41:19 +0530	[thread overview]
Message-ID: <44be117e4661f9ccb64480912644420f@codeaurora.org> (raw)

Hi Joerg,

On 2020-04-13 20:42, Jordan Crouse wrote:
> On Thu, Apr 09, 2020 at 04:31:24PM -0700, Matthias Kaehlcke wrote:
>> On Tue, Feb 04, 2020 at 11:12:17PM +0530, Sai Prakash Ranjan wrote:
>> > Hello Robin, Will
>> >
>> > On 2020-01-22 17:18, Sai Prakash Ranjan wrote:
>> > > This series allows drm devices to set a default identity
>> > > mapping using iommu_request_dm_for_dev(). First patch is
>> > > a cleanup to support other SoCs to call into QCOM specific
>> > > implementation and preparation for second patch.
>> > > Second patch sets the default identity domain for drm devices.
>> > >
>> > > Jordan Crouse (1):
>> > >   iommu/arm-smmu: Allow client devices to select direct mapping
>> > >
>> > > Sai Prakash Ranjan (1):
>> > >   iommu: arm-smmu-impl: Convert to a generic reset implementation
>> > >
>> > >  drivers/iommu/arm-smmu-impl.c |  8 +++--
>> > >  drivers/iommu/arm-smmu-qcom.c | 55 +++++++++++++++++++++++++++++++++--
>> > >  drivers/iommu/arm-smmu.c      |  3 ++
>> > >  drivers/iommu/arm-smmu.h      |  5 ++++
>> > >  4 files changed, 65 insertions(+), 6 deletions(-)
>> >
>> > Any review comments?
>> 
>> Ping
>> 
>> What is the status of this series, is it ready to land or are any 
>> changes
>> needed?
>> 
>> Thanks
>> 
>> Matthias
> 
> I think this is up in the air following the changes that Joerg 
> suggested:
> https://lists.linuxfoundation.org/pipermail/iommu/2020-April/043017.html
> 

1st patch for generic reset in this series is independent and can be 
merged.
But seems like requesting direct mapping fails with the joerg's patch 
series.

Thanks,
Sai

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