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[109.252.193.52]) by smtp.googlemail.com with ESMTPSA id y22sm995715lfg.133.2021.03.11.09.09.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 11 Mar 2021 09:09:28 -0800 (PST) Subject: Re: [PATCH v14 0/2] Add memory bandwidth management to NVIDIA Tegra DRM driver From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Matt Merhar , Peter Geis , Nicolas Chauvet , =?UTF-8?B?TWljaGHFgiBNaXJvc8WCYXc=?= Cc: linux-tegra@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org References: <20210311170606.7543-1-digetx@gmail.com> Message-ID: Date: Thu, 11 Mar 2021 20:09:28 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.4.2 MIME-Version: 1.0 In-Reply-To: <20210311170606.7543-1-digetx@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-kernel@vger.kernel.org 11.03.2021 20:06, 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: > > v14: - Made improvements that were suggested by Michał Mirosław to v13: > > - Changed 'unsigned int' to 'bool'. > - Renamed functions which calculate bandwidth state. > - Reworked comment in the code that explains why downscaled plane > require higher bandwidth. > - Added round-up to bandwidth calculation. > - Added sanity checks of the plane index and fixed out-of-bounds > access which happened on T124 due to the cursor plane index. > > v13: - No code changes. Patches missed v5.12, re-sending them for v5.13. > > Dmitry Osipenko (2): > drm/tegra: dc: Support memory bandwidth management > drm/tegra: dc: Extend debug stats with total number of events > > drivers/gpu/drm/tegra/Kconfig | 1 + > drivers/gpu/drm/tegra/dc.c | 362 ++++++++++++++++++++++++++++++++++ > drivers/gpu/drm/tegra/dc.h | 19 ++ > drivers/gpu/drm/tegra/drm.c | 14 ++ > drivers/gpu/drm/tegra/hub.c | 3 + > drivers/gpu/drm/tegra/plane.c | 127 ++++++++++++ > drivers/gpu/drm/tegra/plane.h | 15 ++ > 7 files changed, 541 insertions(+) > Michał, please let me know if v14 looks good to you. I'll appreciate yours r-b, thanks in advance.