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Wed, 02 Oct 2019 10:38:18 -0700 (PDT) Received: from kozik-lap ([194.230.155.145]) by smtp.googlemail.com with ESMTPSA id q66sm6742037wme.39.2019.10.02.10.38.16 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Wed, 02 Oct 2019 10:38:17 -0700 (PDT) Date: Wed, 2 Oct 2019 19:38:14 +0200 From: Krzysztof Kozlowski To: Lukasz Luba Subject: Re: [PATCH v3 4/4] memory: samsung: exynos5422-dmc: Add support for interrupt from performance counters Message-ID: <20191002173814.GF21463@kozik-lap> References: <20191002060455.3834-1-l.luba@partner.samsung.com> <20191002060455.3834-5-l.luba@partner.samsung.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20191002060455.3834-5-l.luba@partner.samsung.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-20191002_103819_994803_FFCAD19A X-CRM114-Status: GOOD ( 10.52 ) 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: mark.rutland@arm.com, devicetree@vger.kernel.org, willy.mh.wolff.ml@gmail.com, linux-samsung-soc@vger.kernel.org, b.zolnierkie@samsung.com, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, robh+dt@kernel.org, cw00.choi@samsung.com, kyungmin.park@samsung.com, kgene@kernel.org, myungjoo.ham@samsung.com, s.nawrocki@samsung.com, linux-arm-kernel@lists.infradead.org, m.szyprowski@samsung.com 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 Wed, Oct 02, 2019 at 08:04:55AM +0200, Lukasz Luba wrote: > Introduce a new interrupt driven mechanism for managing speed of the > memory controller. The interrupts are generated due to performance > counters overflow. The performance counters might track memory reads, > writes, transfers, page misses, etc. In the basic algorithm tracking > read transfers and calculating memory pressure should be enough to > skip polling mode in devfreq. > > Signed-off-by: Lukasz Luba > --- > drivers/memory/samsung/exynos5422-dmc.c | 345 ++++++++++++++++++++++-- Thanks, applied. Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel