Re: [PATCH 1/6] fake-dma: add fake dma engine driver

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To: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
Subject: Re: [PATCH 1/6] fake-dma: add fake dma engine driver
From: Luis Chamberlain <mcgrof@xxxxxxxxxx>
Date: Thu, 22 May 2025 12:38:47 -0700
Cc: Robin Murphy <robin.murphy@xxxxxxx>, vkoul@xxxxxxxxxx, chenxiang66@xxxxxxxxxxxxx, leon@xxxxxxxxxx, jgg@xxxxxxxxxx, alex.williamson@xxxxxxxxxx, joel.granados@xxxxxxxxxx, iommu@xxxxxxxxxxxxxxx, dmaengine@xxxxxxxxxxxxxxx, linux-block@xxxxxxxxxxxxxxx, gost.dev@xxxxxxxxxxx, Haavard.Skinnemoen@xxxxxxxxxx, Dan Williams <dan.j.williams@xxxxxxxxx>
In-reply-to: <aC9X1VFrRJbH4bYm@bombadil.infradead.org>
References: <20250520223913.3407136-1-mcgrof@kernel.org> <20250520223913.3407136-2-mcgrof@kernel.org> <e3b98f16-2b9f-4cc1-8a54-29c6dfee918f@arm.com> <CGME20250521170724eucas1p28e65ef0ade407ce9e2cfe0b72da26d7a@eucas1p2.samsung.com> <aC4IRTo_HBxv9dVN@bombadil.infradead.org> <fe97e7ba-85d1-44c7-9de8-2082146f335d@samsung.com> <aC9X1VFrRJbH4bYm@bombadil.infradead.org>

On Thu, May 22, 2025 at 09:59:03AM -0700, Luis Chamberlain wrote:
> I'll try the few knobs suggested by Leon to see if that enables it.

That didn't help, but I'm more intruiged by giving the iommufd mocking a
shot, so I'll try that next as I think that will ultimately be cleaner
if possible.

  Luis

References:
- [PATCH 0/6] dma: fake-dma and IOVA tests
  - From: Luis Chamberlain
- [PATCH 1/6] fake-dma: add fake dma engine driver
  - From: Luis Chamberlain
- Re: [PATCH 1/6] fake-dma: add fake dma engine driver
  - From: Robin Murphy
- Re: [PATCH 1/6] fake-dma: add fake dma engine driver
  - From: Luis Chamberlain
- Re: [PATCH 1/6] fake-dma: add fake dma engine driver
  - From: Marek Szyprowski
- Re: [PATCH 1/6] fake-dma: add fake dma engine driver
  - From: Luis Chamberlain

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