[edk2-devel] [PATCH v1 2/2] UefiCpuPkg/CpuCacheInfoLib: Add new CpuCacheInfoLib.
Ni, Ray
ray.ni at intel.com
Fri Nov 20 05:06:35 UTC 2020
Laszlo,
The library can be used by code that produces SMBIOS_TABLE_TYPE7 SMBIOS table.
It's true that right now such code is not in open source.
Thanks,
Ray
> -----Original Message-----
> From: Laszlo Ersek <lersek at redhat.com>
> Sent: Thursday, November 19, 2020 5:52 PM
> To: Lou, Yun <yun.lou at intel.com>; devel at edk2.groups.io
> Cc: Ni, Ray <ray.ni at intel.com>; Dong, Eric <eric.dong at intel.com>; Kumar, Rahul1 <rahul1.kumar at intel.com>
> Subject: Re: [PATCH v1 2/2] UefiCpuPkg/CpuCacheInfoLib: Add new CpuCacheInfoLib.
>
> On 11/19/20 03:36, jasonlouyun wrote:
> > This library uses a platform agnostic algorithm to get CPU cache
> > information. It provides user with an API(GetCpuCacheInfo) to get
> > detailed CPU cache information by each package, each core type
> > included in this package, and each cache level & type.
> >
> > Signed-off-by: Jason Lou <yun.lou at intel.com>
> > Cc: Ray Ni <ray.ni at intel.com>
> > Cc: Eric Dong <eric.dong at intel.com>
> > Cc: Laszlo Ersek <lersek at redhat.com>
> > Cc: Rahul Kumar <rahul1.kumar at intel.com>
> > ---
> > UefiCpuPkg/Library/CpuCacheInfoLib/CpuCacheInfoLib.c | 602 ++++++++++++++++++++
> > UefiCpuPkg/Library/CpuCacheInfoLib/DxeCpuCacheInfoLib.c | 131 +++++
> > UefiCpuPkg/Library/CpuCacheInfoLib/PeiCpuCacheInfoLib.c | 130 +++++
> > UefiCpuPkg/Include/Library/CpuCacheInfoLib.h | 68 +++
> > UefiCpuPkg/Library/CpuCacheInfoLib/CpuCacheInfoLib.uni | 15 +
> > UefiCpuPkg/Library/CpuCacheInfoLib/DxeCpuCacheInfoLib.inf | 43 ++
> > UefiCpuPkg/Library/CpuCacheInfoLib/InternalCpuCacheInfoLib.h | 64 +++
> > UefiCpuPkg/Library/CpuCacheInfoLib/PeiCpuCacheInfoLib.inf | 43 ++
> > UefiCpuPkg/UefiCpuPkg.dec | 3 +
> > UefiCpuPkg/UefiCpuPkg.dsc | 4 +
> > 10 files changed, 1103 insertions(+)
>
> I defer this review to the other UefiCpuPkg reviewers / maintainers.
>
> Two superficial suggestions:
>
> - please file a TianoCore feature request BZ, and reference it in the
> commit messages in this series
>
> - *at least one* of the commit message and the bugzilla ticket, but
> preferably both, should describe the use case. In other words, what
> platforms intend to use the new library (especially if they are open
> source in edk2-platforms or otherwise), and what use cases will benefit
> from having cache information.
>
> Otherwise, this library is just dead code in edk2. I don't insist that
> the consumers of this library be open source, but I do insist that
> *something* be publicly explained about the use case.
>
> Thanks
> Laszlo
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