Messages in this thread | | | Date | Wed, 15 Jul 2020 09:30:17 +0100 | From | Will Deacon <> | Subject | Re: [PATCH] drivers/perf: hisi: Add identifier sysfs file |
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Hi John,
On Wed, Jul 15, 2020 at 09:23:19AM +0100, John Garry wrote: > > On Wed, Jun 17, 2020 at 09:05:11PM +0800, John Garry wrote: > > > To allow userspace to identify the specific implementation of the device, > > > add an "identifier" sysfs file. > > > > > > Encoding is as follows: > > > hi1620: 0x0 (aka hip08) > > > hi1630: 0x30 > > > > > > Signed-off-by: John Garry <john.garry@huawei.com> > > > > I'm struggling a bit to track this. If you still think it's worth pursuing, > > please could you post a series with a cover-letter describing what this is > > for, a link to the userspace changes and then patches for all the PMU > > drivers that need updating? > > There is no hi1630 userspace support yet. > > So what I can do is post updated userspace support (including hi1630), and > then post kernel parts together for all drivers we could initially support. > > @Joakim, I'll pick your imx driver changes here, if you don't mind. > > There was an RFC from you for the SMMUv3 PMU as > > well, and also some other "arm64" changes. > > > > I hope to drop that RFC if an updated SMMUv3 spec helps us out.
Thanks, John. That should be a tonne easier to review.
Will
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