From: Marc Zyngier <maz@kernel.org>
To: Konrad Dybcio <konrad.dybcio@somainline.org>
Cc: phone-devel@vger.kernel.org,
~postmarketos/upstreaming@lists.sr.ht,
martin.botka@somainline.org,
angelogioacchino.delregno@somainline.org,
marijn.suijten@somainline.org,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>,
Stephen Boyd <swboyd@chromium.org>, Rob Herring <robh@kernel.org>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Steven Price <steven.price@arm.com>,
Mark Brown <broonie@kernel.org>, Andrew Scull <ascull@google.com>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Amit Daniel Kachhap <amit.kachhap@arm.com>,
Ionela Voinescu <ionela.voinescu@arm.com>,
Kristina Martsenko <kristina.martsenko@arm.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 4/4] arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver
Date: Thu, 05 Nov 2020 09:29:37 +0000 [thread overview]
Message-ID: <3faa81d537320dfb20bb3f882cfaea1b@kernel.org> (raw)
In-Reply-To: <20201104232218.198800-5-konrad.dybcio@somainline.org>
On 2020-11-04 23:22, Konrad Dybcio wrote:
> QCOM KRYO2XX Silver cores are Cortex-A53 based and are
> susceptible to the 845719 erratum. Add them to the lookup
> list to apply the erratum.
>
> Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
> ---
> arch/arm64/kernel/cpu_errata.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm64/kernel/cpu_errata.c
> b/arch/arm64/kernel/cpu_errata.c
> index 61314fd70f13..cafaf0da05b7 100644
> --- a/arch/arm64/kernel/cpu_errata.c
> +++ b/arch/arm64/kernel/cpu_errata.c
> @@ -299,6 +299,8 @@ static const struct midr_range
> erratum_845719_list[] = {
> MIDR_REV_RANGE(MIDR_CORTEX_A53, 0, 0, 4),
> /* Brahma-B53 r0p[0] */
> MIDR_REV(MIDR_BRAHMA_B53, 0, 0),
> + /* Kryo2XX Silver rAp4 */
> + MIDR_REV(MIDR_QCOM_KRYO_2XX_SILVER, 0xa, 0x4),
Is this the only affected version? If this is actually an A53, how do
the
revisions map between Kryo and Cortex cores?
M.
--
Jazz is not dead. It just smells funny...
next prev parent reply other threads:[~2020-11-05 9:29 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-04 23:22 [PATCH 0/4] Add KRYO2XX Errata / mitigations data Konrad Dybcio
2020-11-04 23:22 ` [PATCH 1/4] arm64: Add MIDR value for KRYO2XX gold/silver CPU cores Konrad Dybcio
2020-11-04 23:22 ` [PATCH 2/4] arm64: kpti: Add KRYO2XX gold/silver CPU cores to kpti safelist Konrad Dybcio
2020-11-04 23:22 ` [PATCH 3/4] arm64: proton-pack: Add KRYO2XX silver CPUs to spectre-v2 safe-list Konrad Dybcio
2020-11-04 23:22 ` [PATCH 4/4] arm64: cpu_errata: Apply Erratum 845719 to KRYO2XX Silver Konrad Dybcio
2020-11-05 9:29 ` Marc Zyngier [this message]
2020-11-05 11:24 ` Konrad Dybcio
2020-11-09 9:36 ` Sai Prakash Ranjan
2020-11-09 19:28 ` Konrad Dybcio
2020-11-10 5:56 ` Sai Prakash Ranjan
2020-11-05 9:33 ` [PATCH 0/4] Add KRYO2XX Errata / mitigations data Will Deacon
2020-11-10 7:00 ` Sai Prakash Ranjan
2020-11-13 11:27 ` Will Deacon
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