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dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=jhugo@codeaurora.org Subject: Re: [PATCH v2] arm64: cpufeature: Enable Qualcomm Falkor errata 1009 for Kryo To: Will Deacon , Bjorn Andersson References: <20191029232738.1483923-1-bjorn.andersson@linaro.org> <20191031132914.GD27196@willie-the-truck> From: Jeffrey Hugo Message-ID: <24673fd9-3c1c-04f6-eb2e-525f8546ebf3@codeaurora.org> Date: Thu, 31 Oct 2019 08:17:18 -0600 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20191031132914.GD27196@willie-the-truck> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191031_071729_881472_5993FCD6 X-CRM114-Status: GOOD ( 17.68 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Catalin Marinas , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 10/31/2019 6:29 AM, Will Deacon wrote: > [+Jeffrey] > > On Tue, Oct 29, 2019 at 04:27:38PM -0700, Bjorn Andersson wrote: >> The Kryo cores share errata 1009 with Falkor, so add their model >> definitions and enable it for them as well. >> >> Signed-off-by: Bjorn Andersson >> --- >> >> Changes since v1: >> - Use is_kryo_midr(), rather than listing each individual model. > > Cheers, I've queued this up as a fix. > > I also updated the E1009 entry in silicon-errata.rst but, in doing so, I > noticed that E1041 is listed there which apparently also affects > Kry^H^H^HHydra [1]. > > At which point, maybe we should rename both Kryo and Falkor in the tree > so that we consistently refer to Hydra as the underlying micro-architecture. > Obviously not something for 5.4, but it would sure help me to understand > what's doing on here. > > Thoughts? Unfortunately, Falkor is also an underlying micro-architecture, it just happens to be strongly related to Hydra so a fair amount of the errata affect both. I don't want to be difficult. For ultimate "correctness", Falkor and Hydra should probably be separate, however the Falkor architecture is not widespread and unlikely to have much churn going forward. So I think if it makes life easier for you, all the Falkor stuff can probably be scrubbed and just merged into Hydra. > > Will > > [1] https://lore.kernel.org/kvmarm/20171115010505.GO11955@codeaurora.org/ > -- Jeffrey Hugo Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project. _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel