linux-kernel - Re: [PATCH 2/3] dt-bindings: arm: cpus: Add edac-enabled property

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Message-ID: <3d000c56-6cc9-4bf3-aa76-39becd05cfcd@linux.microsoft.com>
Date: Tue, 20 May 2025 22:56:33 -0700
From: Vijay Balakrishna <vijayb@...ux.microsoft.com>
To: Rob Herring <robh@...nel.org>, Borislav Petkov <bp@...en8.de>
Cc: Tony Luck <tony.luck@...el.com>, Krzysztof Kozlowski
 <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>,
 James Morse <james.morse@....com>, Mauro Carvalho Chehab
 <mchehab@...nel.org>, Robert Richter <rric@...nel.org>,
 linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org,
 Tyler Hicks <code@...icks.com>, Marc Zyngier <maz@...nel.org>,
 Sascha Hauer <s.hauer@...gutronix.de>,
 Lorenzo Pieralisi <lpieralisi@...nel.org>, devicetree@...r.kernel.org
Subject: Re: [PATCH 2/3] dt-bindings: arm: cpus: Add edac-enabled property

On 5/20/2025 5:07 PM, Rob Herring wrote:
> On Mon, May 19, 2025 at 4:03 AM Borislav Petkov <bp@...en8.de> wrote:
>>
>> On Thu, May 15, 2025 at 05:06:12PM -0700, Vijay Balakrishna wrote:
>>> From: Sascha Hauer <s.hauer@...gutronix.de>
>>>
>>> Some ARM Cortex CPUs including A72 have Error Detection And
>>> Correction (EDAC) support on their L1 and L2 caches. This is implemented
>>> in implementation defined registers, so usage of this functionality is
>>> not safe in virtualized environments or when EL3 already uses these
>>> registers. This patch adds a edac-enabled flag which can be explicitly
>>> set when EDAC can be used.
>>>
>>> Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
>>> [vijayb: Limit A72 in the commit message]
>>> Signed-off-by: Vijay Balakrishna <vijayb@...ux.microsoft.com>
>>> ---
>>>   Documentation/devicetree/bindings/arm/cpus.yaml | 6 ++++++
>>>   1 file changed, 6 insertions(+)
>>
>> This needs an Ack from DT maintainers.
> 
> That will happen when my review comments are implemented. Those were
> on v1. Not this v1, but the prior v1. Version your patches correctly
> please.

Sorry, I will include in my next patch series.

Vijay