> >
> > On Tue, Jun 02, 2020 at 05:09:57AM +, Song Bao Hua (Barry Song)
> wrote:
> > > > >
> > > > > Platform devices are NUMA? That's crazy, and feels like a total
> > > > > abuse of platform devices and drivers that really should belong
> > > > > on a
> > "real"
> > > > > bus.
> > > >
> > >
rnel.org; Linuxarm
> ; Zengtao (B) ; Robin
> Murphy
> Subject: Re: [PATCH] driver core: platform: expose numa_node to users in sysfs
>
> On Tue, Jun 02, 2020 at 05:09:57AM +, Song Bao Hua (Barry Song) wrote:
> > > >
> > > > Platform devices are NUMA? That'
On Tue, Jun 02, 2020 at 05:09:57AM +, Song Bao Hua (Barry Song) wrote:
> > >
> > > Platform devices are NUMA? That's crazy, and feels like a total abuse
> > > of platform devices and drivers that really should belong on a "real"
> > > bus.
> >
> > I am not sure if it is an abuse of platform
> >
> > Platform devices are NUMA? That's crazy, and feels like a total abuse
> > of platform devices and drivers that really should belong on a "real"
> > bus.
>
> I am not sure if it is an abuse of platform device. But smmu is a platform
> device,
> drivers/iommu/arm-smmu-v3.c is a platform
rnel.org; Linuxarm
> ; Zengtao (B) ; Robin
> Murphy
> Subject: Re: [PATCH] driver core: platform: expose numa_node to users in sysfs
>
> On Tue, Jun 02, 2020 at 03:01:39PM +1200, Barry Song wrote:
> > For some platform devices like iommu, particually ARM smmu, users may
> &
On Tue, Jun 02, 2020 at 03:01:39PM +1200, Barry Song wrote:
> For some platform devices like iommu, particually ARM smmu, users may
> care about the numa locality. for example, if threads and drivers run
> near iommu, they may get much better performance on dma_unmap_sg.
> For other platform
On Tue, Jun 02, 2020 at 03:01:39PM +1200, Barry Song wrote:
> For some platform devices like iommu, particually ARM smmu, users may
> care about the numa locality. for example, if threads and drivers run
> near iommu, they may get much better performance on dma_unmap_sg.
> For other platform
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