From: Will Deacon <will@kernel.org>
To: joro@8bytes.org,
Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: catalin.marinas@arm.com, kernel-team@android.com,
Will Deacon <will@kernel.org>,
linux-kernel@vger.kernel.org, steev@kali.org,
iommu@lists.linux.dev, johan+linaro@kernel.org,
andersson@kernel.org, linux-arm-kernel@lists.infradead.org,
robin.murphy@arm.com
Subject: Re: [PATCH v5] iommu/arm-smmu-qcom: Limit the SMR groups to 128
Date: Mon, 27 Mar 2023 13:52:01 +0100 [thread overview]
Message-ID: <167991987524.1305084.466646756285487652.b4-ty@kernel.org> (raw)
In-Reply-To: <20230327080029.11584-1-manivannan.sadhasivam@linaro.org>
On Mon, 27 Mar 2023 13:30:29 +0530, Manivannan Sadhasivam wrote:
> Some platforms support more than 128 stream matching groups than what is
> defined by the ARM SMMU architecture specification. But due to some unknown
> reasons, those additional groups don't exhibit the same behavior as the
> architecture supported ones.
>
> For instance, the additional groups will not detect the quirky behavior of
> some firmware versions intercepting writes to S2CR register, thus skipping
> the quirk implemented in the driver and causing boot crash.
>
> [...]
Applied to will (for-joerg/arm-smmu/updates), thanks!
[1/1] iommu/arm-smmu-qcom: Limit the SMR groups to 128
https://git.kernel.org/will/c/122611347326
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
next prev parent reply other threads:[~2023-03-27 12:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-27 8:00 Manivannan Sadhasivam
2023-03-27 12:52 ` Will Deacon [this message]
2023-03-30 5:41 ` Manivannan Sadhasivam
2023-03-30 15:06 ` Will Deacon
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