m
> ; linux-kselft...@vger.kernel.org; xuwei (O)
> ; Joerg Roedel ; Will Deacon
> ; Shuah Khan
> Subject: Re: [PATCH v3 1/2] dma-mapping: add benchmark support for
> streaming DMA APIs
>
> On Sun, Nov 15, 2020 at 12:11:15AM +, Song Bao Hua (Barry Song)
> wrote:
> >
>
On Sun, Nov 15, 2020 at 12:11:15AM +, Song Bao Hua (Barry Song) wrote:
>
> Checkpatch has changed 80 to 100. That's probably why my local checkpatch
> didn't report any warning:
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=bdc48fa11e46f867ea4d
>
> I am happ
m ;
> linux-kselft...@vger.kernel.org; xuwei (O) ; Joerg
> Roedel ; Will Deacon ; Shuah Khan
>
> Subject: Re: [PATCH v3 1/2] dma-mapping: add benchmark support for
> streaming DMA APIs
>
> Lots of > 80 char lines. Please fix up the style.
Checkpatch has changed 80 to 100. That's
Lots of > 80 char lines. Please fix up the style.
I think this needs to set a dma mask as behavior for unlimited dma
mask vs the default 32-bit one can be very different. I also think
you need to be able to pass the direction or have different tests
for directions. bidirectional is not exactly
acon ; Joerg
> Roedel ; Linuxarm ; xuwei (O)
> ; Shuah Khan
> Subject: Re: [PATCH v3 1/2] dma-mapping: add benchmark support for
> streaming DMA APIs
>
> On 11/11/2020 01:29, Song Bao Hua (Barry Song) wrote:
> > I'd like to think checking this here would be overdesign. W
acon ; Joerg
> Roedel ; Linuxarm ; xuwei (O)
> ; Shuah Khan
> Subject: Re: [PATCH v3 1/2] dma-mapping: add benchmark support for
> streaming DMA APIs
>
> On 10/11/2020 08:10, Song Bao Hua (Barry Song) wrote:
> > Hello Robin, Christoph,
> > Any further comment? John sugges
On 10/11/2020 08:10, Song Bao Hua (Barry Song) wrote:
Hello Robin, Christoph,
Any further comment? John suggested that "depends on DEBUG_FS" should be added
in Kconfig.
I am collecting more comments to send v4 together with fixing this minor issue
:-)
Thanks
Barry
-Original Message-
Hello Robin, Christoph,
Any further comment? John suggested that "depends on DEBUG_FS" should be added
in Kconfig.
I am collecting more comments to send v4 together with fixing this minor issue
:-)
Thanks
Barry
> -Original Message-
> From: Song Bao Hua (Barry Song)
> Sent: Monday, Novem
Khan ; Joerg
> Roedel ; Linuxarm ; xuwei (O)
> ; Will Deacon
> Subject: Re: [PATCH v3 1/2] dma-mapping: add benchmark support for
> streaming DMA APIs
>
> On 02/11/2020 08:06, Barry Song wrote:
> > Nowadays, there are increasing requirements to benchmark the performance
>
On 02/11/2020 08:06, Barry Song wrote:
Nowadays, there are increasing requirements to benchmark the performance
of dma_map and dma_unmap particually while the device is attached to an
IOMMU.
This patch enables the support. Users can run specified number of threads
to do dma_map_page and dma_unma
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