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Re: Adding cache shape info to powerpc
- From: Benjamin Herrenschmidt <benh at kernel dot crashing dot org>
- To: Florian Weimer <fweimer at redhat dot com>, Steven Munroe <munroesj at linux dot vnet dot ibm dot com>
- Cc: libc-alpha at sourceware dot org, Paul Mackerras <pmac at au1 dot ibm dot com>
- Date: Thu, 18 Aug 2016 10:17:35 +1000
- Subject: Re: Adding cache shape info to powerpc
- Authentication-results: sourceware.org; auth=none
- References: <1471408952.19495.29.camel@kernel.crashing.org> <d350e721-0410-3c3a-86c2-a9f3d90b8f0d@redhat.com>
On Wed, 2016-08-17 at 10:36 +0200, Florian Weimer wrote:
> > I've chosen this format. Is that ok with the community ? Can I still use
> > the same AT_* vector numbers or should I create new ones ?
>
> If the old format was in mainline at any point (or in a vendor kernel,
> but let's hope vendors don't do this anymore), you need to pick new numbers.
>
> Do you expect that IFUNC resolvers will need this information?
The old format was only used by other architectures, not powerpc, do I
still need to pick different numbers in that case ?
As for IFUNC I don't think so but I'll let Steve reply as I believe he
is the original requestor for the functionality.
Cheers,
Ben.