From: Borislav Petkov <bp@suse.de>
To: Yazen Ghannam <Yazen.Ghannam@amd.com>
Cc: linux-edac@vger.kernel.org, Tony Luck <tony.luck@intel.com>,
x86@kernel.org, linux-kernel@vger.kernel.org, jack@codezen.org
Subject: Re: [PATCH] x86/mce/AMD: Allow any CPU to initialize smca_banks array
Date: Mon, 17 Jul 2017 07:19:25 +0200 [thread overview]
Message-ID: <20170717051925.GA18200@nazgul.tnic> (raw)
In-Reply-To: <1498759708-27680-1-git-send-email-Yazen.Ghannam@amd.com>
On Thu, Jun 29, 2017 at 01:08:28PM -0500, Yazen Ghannam wrote:
> From: Yazen Ghannam <yazen.ghannam@amd.com>
>
> Current SMCA implementations have the same banks on each CPU with the
> non-core banks only visible to a "master thread" on each Die. Practically,
> this means the smca_banks array, which describes the banks, only needs to
> be populated once by a single master thread.
...
> If the first CPU up is not a master thread, then it will populate the array
> with all core banks. The first CPU afterwards that is a master thread will
> skip populating the core banks and continue populating the non-core banks.
> Every CPU afterwards will then return early.
>
> Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
> ---
> arch/x86/kernel/cpu/mcheck/mce_amd.c | 9 ++-------
> 1 file changed, 2 insertions(+), 7 deletions(-)
Applied, thanks.
--
Regards/Gruss,
Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--
prev parent reply other threads:[~2017-07-17 5:19 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-28 0:06 [PATCH] x86/mce/AMD: Fix partial SMCA bank init when CPU 0 != thread 0 Jack Miller
2017-06-28 9:22 ` Borislav Petkov
2017-06-28 17:44 ` Jack Miller
2017-06-28 18:00 ` Ghannam, Yazen
2017-06-28 18:53 ` Jack Miller
2017-06-28 18:58 ` Ghannam, Yazen
2017-06-29 16:22 ` Jack Miller
2017-06-29 17:58 ` Ghannam, Yazen
2017-06-28 18:16 ` Borislav Petkov
2017-06-28 18:51 ` Ghannam, Yazen
2017-06-28 18:55 ` Borislav Petkov
2017-06-29 18:08 ` [PATCH] x86/mce/AMD: Allow any CPU to initialize smca_banks array Yazen Ghannam
2017-06-30 15:57 ` Jack Miller
2017-07-17 5:19 ` Borislav Petkov [this message]
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