From: Greg KH <gregkh@linuxfoundation.org>
To: Claire Chang <tientzu@chromium.org>
Cc: heikki.krogerus@linux.intel.com, peterz@infradead.org,
benh@kernel.crashing.org, grant.likely@arm.com, paulus@samba.org,
frowand.list@gmail.com, mingo@kernel.org, sstabellini@kernel.org,
saravanak@google.com, mpe@ellerman.id.au,
rafael.j.wysocki@intel.com, hch@lst.de,
bgolaszewski@baylibre.com, xen-devel@lists.xenproject.org,
treding@nvidia.com, devicetree@vger.kernel.org, will@kernel.org,
konrad.wilk@oracle.com, dan.j.williams@intel.com,
robh+dt@kernel.org, boris.ostrovsky@oracle.com,
andriy.shevchenko@linux.intel.com, jgross@suse.com,
drinkcat@chromium.org, linuxppc-dev@lists.ozlabs.org,
rdunlap@infradead.org, linux-kernel@vger.kernel.org,
iommu@lists.linux-foundation.org, xypron.glpk@gmx.de,
robin.murphy@arm.com
Subject: Re: [RFC PATCH v3 2/6] swiotlb: Add restricted DMA pool
Date: Wed, 6 Jan 2021 08:50:03 +0100 [thread overview]
Message-ID: <X/VrqxcaAMi65CF0@kroah.com> (raw)
In-Reply-To: <20210106034124.30560-3-tientzu@chromium.org>
On Wed, Jan 06, 2021 at 11:41:20AM +0800, Claire Chang wrote:
> Add the initialization function to create restricted DMA pools from
> matching reserved-memory nodes in the device tree.
>
> Signed-off-by: Claire Chang <tientzu@chromium.org>
> ---
> include/linux/device.h | 4 ++
> include/linux/swiotlb.h | 7 +-
> kernel/dma/Kconfig | 1 +
> kernel/dma/swiotlb.c | 144 ++++++++++++++++++++++++++++++++++------
> 4 files changed, 131 insertions(+), 25 deletions(-)
>
> diff --git a/include/linux/device.h b/include/linux/device.h
> index 89bb8b84173e..ca6f71ec8871 100644
> --- a/include/linux/device.h
> +++ b/include/linux/device.h
> @@ -413,6 +413,7 @@ struct dev_links_info {
> * @dma_pools: Dma pools (if dma'ble device).
> * @dma_mem: Internal for coherent mem override.
> * @cma_area: Contiguous memory area for dma allocations
> + * @dma_io_tlb_mem: Internal for swiotlb io_tlb_mem override.
Why does this have to be added here? Shouldn't the platform-specific
code handle it instead?
thanks,
greg k-h
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iommu@lists.linux-foundation.org
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next prev parent reply other threads:[~2021-01-06 7:50 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-06 3:41 [RFC PATCH v3 0/6] Restricted DMA Claire Chang
2021-01-06 3:41 ` [RFC PATCH v3 1/6] swiotlb: Add io_tlb_mem struct Claire Chang
2021-01-13 11:50 ` Christoph Hellwig
2021-01-06 3:41 ` [RFC PATCH v3 2/6] swiotlb: Add restricted DMA pool Claire Chang
2021-01-06 7:50 ` Greg KH [this message]
2021-01-13 11:51 ` Christoph Hellwig
2021-01-13 12:29 ` Greg KH
2021-01-13 12:37 ` Christoph Hellwig
2021-01-06 18:52 ` Konrad Rzeszutek Wilk
2021-01-07 17:39 ` Claire Chang
2021-01-07 17:57 ` Konrad Rzeszutek Wilk
2021-01-07 18:09 ` Florian Fainelli
2021-01-07 21:19 ` Konrad Rzeszutek Wilk
2021-01-12 23:52 ` Florian Fainelli
2021-01-25 5:26 ` Jon Masters
2021-01-13 1:53 ` Robin Murphy
2021-01-13 0:03 ` Florian Fainelli
2021-01-13 13:59 ` Nicolas Saenz Julienne
2021-01-13 15:27 ` Robin Murphy
2021-01-13 17:43 ` Florian Fainelli
2021-01-13 18:03 ` Robin Murphy
2021-01-13 12:42 ` Christoph Hellwig
2021-01-14 9:06 ` Claire Chang
2021-01-06 3:41 ` [RFC PATCH v3 3/6] swiotlb: Use restricted DMA pool if available Claire Chang
2021-01-12 23:39 ` Florian Fainelli
2021-01-13 12:44 ` Christoph Hellwig
2021-01-06 3:41 ` [RFC PATCH v3 4/6] swiotlb: Add restricted DMA alloc/free support Claire Chang
2021-01-12 23:41 ` Florian Fainelli
2021-01-13 12:48 ` Christoph Hellwig
2021-01-13 18:27 ` Robin Murphy
2021-01-13 18:32 ` Christoph Hellwig
2021-01-06 3:41 ` [RFC PATCH v3 5/6] dt-bindings: of: Add restricted DMA pool Claire Chang
2021-01-06 18:57 ` Konrad Rzeszutek Wilk
2021-01-07 17:39 ` Claire Chang
2021-01-07 18:00 ` Konrad Rzeszutek Wilk
2021-01-07 18:14 ` Florian Fainelli
2021-01-12 7:47 ` Claire Chang
2021-01-20 16:53 ` Rob Herring
2021-01-20 17:30 ` Robin Murphy
2021-01-20 21:31 ` Rob Herring
2021-01-21 1:09 ` Robin Murphy
2021-01-21 15:48 ` Rob Herring
2021-01-21 17:29 ` Robin Murphy
2021-01-06 3:41 ` [RFC PATCH v3 6/6] of: Add plumbing for " Claire Chang
2021-01-12 23:48 ` Florian Fainelli
2021-01-14 9:08 ` Claire Chang
2021-01-14 18:52 ` Florian Fainelli
2021-01-15 3:46 ` Claire Chang
2021-01-06 18:48 ` [RFC PATCH v3 0/6] Restricted DMA Florian Fainelli
2021-01-07 17:38 ` Claire Chang
2021-01-07 17:42 ` Claire Chang
2021-01-07 17:59 ` Florian Fainelli
2021-01-12 7:48 ` Claire Chang
2021-01-12 18:01 ` Florian Fainelli
2021-01-13 2:29 ` Tomasz Figa
2021-01-13 3:56 ` Florian Fainelli
2021-01-13 4:25 ` Tomasz Figa
2021-01-13 4:41 ` Florian Fainelli
2021-02-09 6:27 ` Claire Chang
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