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From: Caleb Connolly <caleb@connolly.tech>
To: Bjorn Andersson <bjorn.andersson@linaro.org>,
	Will Deacon <will@kernel.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Joerg Roedel <joro@8bytes.org>,
	Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>,
	Jordan Crouse <jcrouse@codeaurora.org>,
	Rob Clark <robdclark@chromium.org>
Cc: linux-arm-msm@vger.kernel.org, iommu@lists.linux-foundation.org,
	Sibi Sankar <sibis@codeaurora.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 0/8] iommu/arm-smmu: Support maintaining bootloader mappings
Date: Mon, 07 Sep 2020 18:49:21 +0000	[thread overview]
Message-ID: <c1cce546-0c49-05e2-8c54-5f343db273c8@connolly.tech> (raw)

On 2020-09-04 16:55, Bjorn Andersson wrote:
> Based on previous attempts and discussions this is the latest attempt at
> inheriting stream mappings set up by the bootloader, for e.g. boot splash or
> efifb.
>
> Per Will's request this builds on the work by Jordan and Rob for the Adreno
> SMMU support. It applies cleanly ontop of v16 of their series, which can be
> found at
> https://lore.kernel.org/linux-arm-msm/20200901164707.2645413-1-robdclark@gmail.com/
>
> Bjorn Andersson (8):
>    iommu/arm-smmu: Refactor context bank allocation
>    iommu/arm-smmu: Delay modifying domain during init
>    iommu/arm-smmu: Consult context bank allocator for identify domains
>    iommu/arm-smmu-qcom: Emulate bypass by using context banks
>    iommu/arm-smmu-qcom: Consistently initialize stream mappings
>    iommu/arm-smmu: Add impl hook for inherit boot mappings
>    iommu/arm-smmu: Provide helper for allocating identity domain
>    iommu/arm-smmu-qcom: Setup identity domain for boot mappings
>
>   drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 111 ++++++++++++++++++-
>   drivers/iommu/arm/arm-smmu/arm-smmu.c      | 122 ++++++++++++++-------
>   drivers/iommu/arm/arm-smmu/arm-smmu.h      |  14 ++-
>   3 files changed, 205 insertions(+), 42 deletions(-)
>

Tested on the OnePlus 6 (SDM845), allows booting with display enabled.



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             reply	other threads:[~2020-09-07 19:05 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-07 18:49 Caleb Connolly [this message]
  -- strict thread matches above, loose matches on Subject: below --
2020-09-04 15:55 [PATCH v3 0/8] iommu/arm-smmu: Support maintaining bootloader mappings Bjorn Andersson
2020-09-05 22:27 ` Rob Clark
2020-09-09 14:46 ` Laurentiu Tudor
2020-09-10 22:56 ` John Stultz
2020-09-11  8:16 ` Sai Prakash Ranjan
2020-09-11 16:10 ` Amit Pundir
2020-09-16 10:09 ` Laurentiu Tudor

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