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read-only mirror of https://gitlab.freedesktop.org/mesa/mesa
35f053ba8c
GFX9+ hardware has an issue where mipmap degradations are calculated
incorrectly due to using divide-by-two integer math and certain mipmap
sizes lose blocks.
This issue has been documented before, and we ported a workaround from
AMDVLK to increase the extent that is programmed into the descriptor, so
that the hardware arrives at the correct result. However, this is
insufficient as we cannot safely increase the extent beyond the physical
extent of the image in memory. If we can't increase it enough, the image
will still be missing blocks.
But there is still hope. In cases where RADV is responsible for copying to
or from an image (such as vkCmdCopyBufferToImage/vkCmdCopyImageToBuffer),
we can perform a second copy of the blocks that the hardware excluded so
that the resulting image is complete. This is another workaround from
AMDVLK.
This fixes corrupted textures in Halo: The Master Chief Collection.
v2: Add RADV_CMD_FLAG_INV_L2 | RADV_CMD_FLAG_INV_VCACHE to flush_bits
just in case (Samuel Pitoiset)
Closes: #3347
Signed-off-by: John Brooks <john@fastquake.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Acked-by: Acked-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17970>
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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.