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03dee27f48
On real hardware compute_heap_size() reserves a fraction of total_ram for
the rest of the system and compute_memory_budget() reports at most 90% of
the available memory, both because that RAM is shared between the GPU and
the CPU. In simulator mode the memory is instead a dedicated GPU pool
allocated by the simulator, so these reservations just hid memory: although
we allocate 1 GiB for the simulator, only 512 MiB was exposed as the heap
and as the budget.
Expose the full simulator allocation as both the heap size and the budget.
The simulator never allocates more than the 4 GiB the GPU MMU can address,
which we assert.
Before:
memoryHeaps[0]:
size = 536870912 (0x20000000) (512.00 MiB)
budget = 536870912 (0x20000000) (512.00 MiB)
After:
memoryHeaps[0]:
size = 1073741824 (0x40000000) (1024.00 MiB)
budget = 1073725536 (0x3fffc060) (1023.98 MiB)
Assisted-by: Claude Opus 4.8
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41898>
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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://docs.mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://docs.mesa3d.org/meson.html>`_): .. code-block:: sh $ meson setup build $ ninja -C build/ $ sudo ninja -C build/ 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://docs.mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://docs.mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.