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From: Will Deacon <will@kernel.org>
To: Zhangfei Gao <zhangfei.gao@linaro.org>,
	jean-philippe <jean-philippe@linaro.org>,
	Joerg Roedel <joro@8bytes.org>,
	Jason Gunthorpe <jgg@nvidia.com>
Cc: catalin.marinas@arm.com,
	kernel-team@android.com,
	Will Deacon <will@kernel.org>,
	iommu@lists.linux.dev,
	kvm@vger.kernel.org,
	Wenkai Lin <linwenkai6@hisilicon.com>
Subject: Re: [PATCH] iommu/arm-smmu-v3: disable stall for quiet_cd
Date: Tue, 12 Dec 2023 17:21:01 +0000
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On Wed, 6 Dec 2023 08:57:27 +0800, Zhangfei Gao wrote:
> From: Wenkai Lin <linwenkai6@hisilicon.com>
> 
> In the stall model, invalid transactions were expected to be
> stalled and aborted by the IOPF handler.
> 
> However, when killing a test case with a huge amount of data, the
> accelerator streamline can not stop until all data is consumed
> even if the page fault handler reports errors. As a result, the
> kill may take a long time, about 10 seconds with numerous iopf
> interrupts.
> 
> [...]

Applied to will (for-joerg/arm-smmu/updates), thanks!

[1/1] iommu/arm-smmu-v3: disable stall for quiet_cd
      https://git.kernel.org/will/c/b41932f54458

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev