Re: [PATCH v12 06/12] swiotlb: Use is_swiotlb_force_bounce for swiotlb data bouncing

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Subject: Re: [PATCH v12 06/12] swiotlb: Use is_swiotlb_force_bounce for swiotlb data bouncing
From: Christoph Hellwig <hch@xxxxxx>
Date: Wed, 16 Jun 2021 09:39:22 +0200
Cc: Rob Herring <robh+dt@xxxxxxxxxx>, mpe@xxxxxxxxxxxxxx, Joerg Roedel <joro@xxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Frank Rowand <frowand.list@xxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, boris.ostrovsky@xxxxxxxxxx, jgross@xxxxxxxx, Christoph Hellwig <hch@xxxxxx>, Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>, benh@xxxxxxxxxxxxxxxxxxx, paulus@xxxxxxxxx, "list@xxxxxxx:IOMMU DRIVERS" <iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx>, sstabellini@xxxxxxxxxx, Robin Murphy <robin.murphy@xxxxxxx>, grant.likely@xxxxxxx, xypron.glpk@xxxxxx, Thierry Reding <treding@xxxxxxxxxx>, mingo@xxxxxxxxxx, bauerman@xxxxxxxxxxxxx, peterz@xxxxxxxxxxxxx, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx>, Saravana Kannan <saravanak@xxxxxxxxxx>, "Rafael J . Wysocki" <rafael.j.wysocki@xxxxxxxxx>, heikki.krogerus@xxxxxxxxxxxxxxx, Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>, Randy Dunlap <rdunlap@xxxxxxxxxxxxx>, Dan Williams <dan.j.williams@xxxxxxxxx>, Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>, linux-devicetree <devicetree@xxxxxxxxxxxxxxx>, lkml <linux-kernel@xxxxxxxxxxxxxxx>, linuxppc-dev@xxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, Nicolas Boichat <drinkcat@xxxxxxxxxxxx>, Jim Quinlan <james.quinlan@xxxxxxxxxxxx>, tfiga@xxxxxxxxxxxx, bskeggs@xxxxxxxxxx, bhelgaas@xxxxxxxxxx, chris@xxxxxxxxxxxxxxxxxx, daniel@xxxxxxxx, airlied@xxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, intel-gfx@xxxxxxxxxxxxxxxxxxxxx, jani.nikula@xxxxxxxxxxxxxxx, jxgao@xxxxxxxxxx, joonas.lahtinen@xxxxxxxxxxxxxxx, linux-pci@xxxxxxxxxxxxxxx, maarten.lankhorst@xxxxxxxxxxxxxxx, matthew.auld@xxxxxxxxx, rodrigo.vivi@xxxxxxxxx, thomas.hellstrom@xxxxxxxxxxxxxxx
In-reply-to: <20210616062157.953777-7-tientzu@chromium.org>
References: <20210616062157.953777-1-tientzu@chromium.org> <20210616062157.953777-7-tientzu@chromium.org>
User-agent: Mutt/1.5.17 (2007-11-01)

On Wed, Jun 16, 2021 at 02:21:51PM +0800, Claire Chang wrote:
> Propagate the swiotlb_force into io_tlb_default_mem->force_bounce and
> use it to determine whether to bounce the data or not. This will be
> useful later to allow for different pools.
> 
> Signed-off-by: Claire Chang <tientzu@xxxxxxxxxxxx>

Looks good,

Reviewed-by: Christoph Hellwig <hch@xxxxxx>

References:
- [PATCH v12 00/12] Restricted DMA
  - From: Claire Chang
- [PATCH v12 06/12] swiotlb: Use is_swiotlb_force_bounce for swiotlb data bouncing
  - From: Claire Chang

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