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[94.29.29.31]) by smtp.googlemail.com with ESMTPSA id 140sm2014922ljj.124.2021.06.20.21.19.15 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 20 Jun 2021 21:19:16 -0700 (PDT) Subject: Re: [PATCH v18 0/2] Add memory bandwidth management to NVIDIA Tegra DRM driver From: Dmitry Osipenko To: Thierry Reding Cc: linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Matt Merhar , Jonathan Hunter , Peter Geis , Nicolas Chauvet , =?UTF-8?B?TWljaGHFgiBNaXJvc8WCYXc=?= References: <20210601042108.1942-1-digetx@gmail.com> <8accfe1e-fc48-21ca-f7c6-bd2d60162e6d@gmail.com> Message-ID: <50912a57-aa43-58b0-02d2-6928578d6286@gmail.com> Date: Mon, 21 Jun 2021 07:19:15 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 In-Reply-To: <8accfe1e-fc48-21ca-f7c6-bd2d60162e6d@gmail.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org 07.06.2021 01:40, Dmitry Osipenko пишет: > 01.06.2021 07:21, Dmitry Osipenko пишет: >> This series adds memory bandwidth management to the NVIDIA Tegra DRM driver, >> which is done using interconnect framework. It fixes display corruption that >> happens due to insufficient memory bandwidth. >> >> Changelog: >> >> v18: - Moved total peak bandwidth from CRTC state to plane state and removed >> dummy plane bandwidth state initialization from T186+ plane hub. This >> was suggested by Thierry Reding to v17. >> >> - I haven't done anything about the cursor's plane bandwidth which >> doesn't contribute to overlapping bandwidths for a small sized >> window because it works okay as-is. > > Thierry, will you take these patches for 5.14? > The display controller does _NOT_WORK_ properly without bandwidth management. Can we get this patch into 5.14? What is the problem?