From: Krzysztof Kozlowski <krzk@kernel.org>
To: Vijay Balakrishna <vijayb@linux.microsoft.com>,
Borislav Petkov <bp@alien8.de>, Tony Luck <tony.luck@intel.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>
Cc: James Morse <james.morse@arm.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Robert Richter <rric@kernel.org>,
linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org,
Tyler Hicks <code@tyhicks.com>, Marc Zyngier <maz@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Lorenzo Pieralisi <lpieralisi@kernel.org>,
devicetree@vger.kernel.org
Subject: Re: [v10 PATCH 2/2] dt-bindings: arm: cpus: Add edac-enabled property
Date: Wed, 28 May 2025 07:54:16 +0200 [thread overview]
Message-ID: <4dc85254-215c-4826-a157-b755b738dd5a@kernel.org> (raw)
In-Reply-To: <1748387790-20838-3-git-send-email-vijayb@linux.microsoft.com>
On 28/05/2025 01:16, Vijay Balakrishna wrote:
> From: Sascha Hauer <s.hauer@pengutronix.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@pengutronix.de>
> [vijayb: Added A72 to the commit message]
> Signed-off-by: Vijay Balakrishna <vijayb@linux.microsoft.com>
> ---
> .../devicetree/bindings/arm/cpus.yaml | 51 +++++++++++++------
> 1 file changed, 35 insertions(+), 16 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/arm/cpus.yaml b/Documentation/devicetree/bindings/arm/cpus.yaml
> index 2e666b2a4dcd..8f42c4fec59b 100644
> --- a/Documentation/devicetree/bindings/arm/cpus.yaml
> +++ b/Documentation/devicetree/bindings/arm/cpus.yaml
> @@ -331,6 +331,13 @@ properties:
> corresponding to the index of an SCMI performance domain provider, must be
> "perf".
>
> + edac-enabled:
> + $ref: /schemas/types.yaml#/definitions/flag
> + description:
> + A72 CPUs support Error Detection And Correction (EDAC) on their L1 and
> + L2 caches. This flag marks this function as usable.
> +# type: boolean
Drop
Rest looks fine to me, seems implementing Rob's comments.
With change above:
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Best regards,
Krzysztof
prev parent reply other threads:[~2025-05-28 5:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-27 23:16 [v10 PATCH 0/2] Add L1 and L2 error detection for A72 Vijay Balakrishna
2025-05-27 23:16 ` [v10 PATCH 1/2] EDAC: Add EDAC driver for ARM Cortex A72 cores Vijay Balakrishna
2025-05-28 9:01 ` Jonathan Cameron
2025-05-27 23:16 ` [v10 PATCH 2/2] dt-bindings: arm: cpus: Add edac-enabled property Vijay Balakrishna
2025-05-28 5:54 ` Krzysztof Kozlowski [this message]
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