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[68.147.0.187]) by smtp.gmail.com with ESMTPSA id v127-20020a622f85000000b0053818255880sm2368380pfv.193.2022.09.21.09.46.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Sep 2022 09:46:25 -0700 (PDT) Date: Wed, 21 Sep 2022 10:46:22 -0600 From: Mathieu Poirier To: Mark Brown Cc: James Clark , coresight@lists.linaro.org, catalin.marinas@arm.com, linux-arm-kernel@lists.infradead.org, suzuki.poulose@arm.com, mike.leach@linaro.org, leo.yan@linaro.org, linux-kernel@vger.kernel.org, Will Deacon Subject: Re: [PATCH 1/1] arm64: defconfig: Add Coresight as module Message-ID: <20220921164622.GA1124503@p14s> References: <20220921140535.152627-1-james.clark@arm.com> <20220921140535.152627-2-james.clark@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 21, 2022 at 04:26:59PM +0100, Mark Brown wrote: > On Wed, Sep 21, 2022 at 03:05:35PM +0100, James Clark wrote: > > > +CONFIG_CORESIGHT_CTI=m > > +CONFIG_CORESIGHT_CTI_INTEGRATION_REGS=y > I agree - integration registers should not be enabled by default. > Do we want this turned on by default? According to the > description it's a bit dangerous and it's exposed via sysfs > rather than debugfs.