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[45.79.107.191]) by smtp.gmail.com with ESMTPSA id n4sm17327716pfh.8.2019.03.04.17.07.10 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 04 Mar 2019 17:07:13 -0800 (PST) Date: Tue, 5 Mar 2019 09:07:07 +0800 From: Leo Yan To: Suzuki K Poulose Subject: Re: [PATCH v2] dts: arm64: add CoreSight trace support for hi3660 Message-ID: <20190305010707.GA9544@leoy-ThinkPad-X240s> References: <6496F4728C09F6479CFF21A8E67D33D568F32660@dggema525-mbx.china.huawei.com> <20190302125955.GA11385@leoy-ThinkPad-X240s> <9109e498-0cd9-0b81-15a0-2208d4282359@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <9109e498-0cd9-0b81-15a0-2208d4282359@arm.com> User-Agent: Mutt/1.9.4 (2018-02-28) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190304_170716_136004_988F48D5 X-CRM114-Status: GOOD ( 17.82 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, shiwanglai@hisilicon.com, mathieu.poirier@linaro.org, coresight@lists.linaro.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, john.stultz@linaro.org, xuwei5@huawei.com, suzhuangluan@hisilicon.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Mar 04, 2019 at 05:29:22PM +0000, Suzuki K Poulose wrote: [...] > > > To support for a funnel without any register address range (we have > > > support replicator like this mode), we also need to extend the driver > > > drivers/hwtracing/coresight/coresight-funnel.c. > > > > > > Mathieu, Mike, Suzuki, could you help confirm this is the right > > > direction we should move forward to? > > > > Leo, thanks for testing this out. Shiwanglai, please add Suzuki and > > myself to future revision of this set - this will help you getting a > > timely response for your work. Yeah, I didn't give a good example for this; just remind to Wanglai, usually we can add maintainers' email address in the "To:" list so this will be more friendly for email filters. > > As Leo pointed out we already have support for replicators that don't > > have a register map and the same thing should be done in this case. > > But contrary to what was done for replicators, I think we should keep > > the drivers in the same file as Russell did here[1]. That way we can > > keep all things funnel at the same place and reduce the amount of > > kernel configuration options. > > I back that. I have already merged the static and programmable replicators > into one and this should be out here soon. So, I back the single driver > approach for funnels. That's great! Thanks for advices, Mathieu & Suzuki. Will sync with you offline for proceeding. Thanks, Leo Yan _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel