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63b0951b6e
This contains a fairly large rework that makes the buffer objects behave more according to what the DMA-BUF infrastructure expects. A buffer object cache is implemented on top of that to make certain operations such as page-flipping more efficient by avoiding needless map/unmap operations. This in turn is useful to implement asynchronous commits to support legacy cursor updates. Another fairly big addition is the NVDEC driver. This uses the updated UABI introduced in v5.15-rc1 to provide access to the video decode engines found on Tegra210 and later. This also includes some power management improvements that are useful on older devices in particular because they, together with a bunch of other changes across the kernel, allow the system to scale down frequency and voltages when mostly idle and prevent these devices from becoming excessively hot. The remainder of these changes is an assortment of cleanups and minor fixes. -----BEGIN PGP SIGNATURE----- iQJHBAABCAAxFiEEiOrDCAFJzPfAjcif3SOs138+s6EFAmG8nFoTHHRyZWRpbmdA bnZpZGlhLmNvbQAKCRDdI6zXfz6zoYhcEAC7MOuQHeNxG99+23nwtkdm1/pgsPXj Nw8G87Q+AtnePykMaqmtxtxfXti3Vq8qL+bIgOzodXAPVYuqICOwU8MCukuPXn4X OSfKzKKMKrqbzCpBVoAq1YfJX5QOv8BYNMzxCx7TVb0TGIT5cS5gEEjSUg9d4l37 qQnQRkO+/04yvKMN0UhMz4BwJG8xYxqAFa4byd3ZhQ5DZvb8wz/iEpUU3YbSTKuC Ri0rUVKDJxhJIfZ/HkFLDw1lKhg3JpjM5Qz+Uly/OUSLVFNeHkaL0m/LqqWr1+ug GIrkRtE+kvdezMFHtffdAL6xBbACHjkuiT4TN8OJuXO+o9TqJZyvLckV/DW/pdfY UmVsu0ph9SpbTcUOUFJPpIN7/8cR+AiUo9TfUkNFsn+vO02Hmg8ZwMWucPdUTusj /apVKz0vbs1xDQ9fV6tTtn+9o5UtO0kMJsWLm9v7je/odguo0hWoyf+aMNpstoXy qZ0PLC0Ltky+5re4X4iwGjoOBQpNyYsl5Vcal0pSu+W5JxVAaB4q3UN/Y5pHopRP YZFN/s5Tx1bfR2eySVnW72bm9N1elLUgYZQwx41eguRDdZaFo7EaPBS49AT6BD8X COMvB8Sbb5r4wZQL2RVom3dhPEhhuSfGXszxcLf1O6oEyZXtSL1EnZiJkhC440Va umD6K8ynnXHnzA== =y3U1 -----END PGP SIGNATURE----- Merge tag 'drm/tegra/for-5.17-rc1' of https://gitlab.freedesktop.org/drm/tegra into drm-next drm/tegra: Changes for v5.17-rc1 This contains a fairly large rework that makes the buffer objects behave more according to what the DMA-BUF infrastructure expects. A buffer object cache is implemented on top of that to make certain operations such as page-flipping more efficient by avoiding needless map/unmap operations. This in turn is useful to implement asynchronous commits to support legacy cursor updates. Another fairly big addition is the NVDEC driver. This uses the updated UABI introduced in v5.15-rc1 to provide access to the video decode engines found on Tegra210 and later. This also includes some power management improvements that are useful on older devices in particular because they, together with a bunch of other changes across the kernel, allow the system to scale down frequency and voltages when mostly idle and prevent these devices from becoming excessively hot. The remainder of these changes is an assortment of cleanups and minor fixes. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thierry Reding <thierry.reding@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211217142912.558095-1-thierry.reding@gmail.com |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.