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e1fe4a64d3
While Panfrost allocates linear images with strides that are a multiple of 64 bytes, other dma-buf producers on the system may not satisfy this requirement. However, at least on v7 and newer, any image with a regular format must have a stride that is a multiple of 64 bytes. This fixes a real bug in an application that created a linear R8_UNORM image with stride 480 bytes, imported it as an EGL_image, and then tried to texture from it with the GPU. Previously, the driver allowed this situation but it resulted in an imprecise fault from the GPU. This patch corrects the driver to reject the import as invalid due to the unaligned stride, ensuring we never attempt to texture from such a resource. To implement, we add some new layout queries to centralize knowledge about the stride alignment requirements, and we sprinkle in asserts to show how the invariant is upheld throughout the lifecycle of image creation to texturing. Cc: mesa-stable Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19620> (cherry picked from commit 811f8a19469722bea32f3c539b8cf0939fe3b057) |
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`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library ====================================================== Source ------ This repository lives at https://gitlab.freedesktop.org/mesa/mesa. Other repositories are likely forks, and code found there is not supported. Build & install --------------- You can find more information in our documentation (`docs/install.rst <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://mesa3d.org/meson.html>`_): .. code-block:: sh $ mkdir build $ cd build $ meson .. $ sudo ninja install Support ------- Many Mesa devs hang on IRC; if you're not sure which channel is appropriate, you should ask your question on `OFTC's #dri-devel <irc://irc.oftc.net/dri-devel>`_, someone will redirect you if necessary. Remember that not everyone is in the same timezone as you, so it might take a while before someone qualified sees your question. To figure out who you're talking to, or which nick to ping for your question, check out `Who's Who on IRC <https://dri.freedesktop.org/wiki/WhosWho/>`_. The next best option is to ask your question in an email to the mailing lists: `mesa-dev\@lists.freedesktop.org <https://lists.freedesktop.org/mailman/listinfo/mesa-dev>`_ Bug reports ----------- If you think something isn't working properly, please file a bug report (`docs/bugs.rst <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.