From: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
To: Andreas Herrmann <aherrmann@suse.de>
Cc: x86@kernel.org, Andreas Herrmann <aherrmann@suse.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Chen Yu <yu.c.chen@intel.com>, Len Brown <len.brown@intel.com>,
Radu Rendec <rrendec@redhat.com>,
Pierre Gondois <Pierre.Gondois@arm.com>, Pu Wen <puwen@hygon.cn>,
"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
Sudeep Holla <sudeep.holla@arm.com>,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
Will Deacon <will@kernel.org>, Zhang Rui <rui.zhang@intel.com>,
Nikolay Borisov <nik.borisov@suse.com>,
Huang Ying <ying.huang@intel.com>,
Ricardo Neri <ricardo.neri@intel.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v5 4/4] x86/cacheinfo: Clean out init_cache_level()
Date: Wed, 4 Sep 2024 00:30:07 -0700 [thread overview]
Message-ID: <20240904073007.GA3840@ranerica-svr.sc.intel.com> (raw)
In-Reply-To: <20240902074140.GA4179@alberich>
On Mon, Sep 02, 2024 at 09:41:40AM +0200, Andreas Herrmann wrote:
> On Sun, Sep 01, 2024 at 08:09:13PM +0200, Andreas Herrmann wrote:
> > On Mon, Aug 26, 2024 at 10:16:35PM -0700, Ricardo Neri wrote:
> > > init_cache_level() no longer has a purpose on x86. It no longer needs to
> > > set num_leaves, and it never had to set num_levels, which was unnecessary
> > > on x86.
> > >
> > > Replace it with "return 0" simply to override the weak function, which
> > > would return an error.
> > >
> > > Reviewed-by: Len Brown <len.brown@intel.com>
> > > Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
> >
> > Reviewed-by: Andreas Herrmann <aherrmann@suse.de>
> > Tested-by: Andreas Herrmann <aherrmann@suse.de>
> >
> > Test was done with a system equipped with AMD Phenom II X6 1055T and
> > test kernels based on v6.11-rc5-176-g20371ba12063.
>
> FYI, the test consisted of booting the mainline kernel w/o and w/ your
> patches, checking for potential new errors/warnings in kernel log and
> checking for changes or incosistencies in information of cache
> characteristics as reported in sysfs, and by some tools (lscpu,
> lstopo, x86info) -- e.g. x86info does not use sysfs to gather cache
> information for CPUs.
Thank you very much for you review and testing!
I will post a new version with the feedback from Nikolay and Sudeep and
your tags.
BR,
Ricardo
prev parent reply other threads:[~2024-09-04 7:24 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-27 5:16 [PATCH v5 0/4] x86/cacheinfo: Set the number of leaves per CPU Ricardo Neri
2024-08-27 5:16 ` [PATCH v5 1/4] cacheinfo: Check for null last-level cache info Ricardo Neri
2024-09-01 18:07 ` Andreas Herrmann
2024-08-27 5:16 ` [PATCH v5 2/4] cacheinfo: Allocate memory for memory if not done from the primary CPU Ricardo Neri
2024-08-28 13:16 ` Nikolay Borisov
2024-08-28 13:57 ` Sudeep Holla
2024-08-29 4:37 ` Ricardo Neri
2024-09-01 18:08 ` Andreas Herrmann
2024-08-27 5:16 ` [PATCH v5 3/4] x86/cacheinfo: Delete global num_cache_leaves Ricardo Neri
2024-08-28 12:57 ` Nikolay Borisov
2024-08-29 4:33 ` Ricardo Neri
2024-09-01 18:08 ` Andreas Herrmann
2024-08-27 5:16 ` [PATCH v5 4/4] x86/cacheinfo: Clean out init_cache_level() Ricardo Neri
2024-08-28 14:01 ` Nikolay Borisov
2024-08-29 4:38 ` Ricardo Neri
2024-09-01 18:09 ` Andreas Herrmann
2024-09-02 7:41 ` Andreas Herrmann
2024-09-04 7:30 ` Ricardo Neri [this message]
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