nouveau: find the smallest page allocation to cover a buffer alloc.

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commit e9ba37d9f9 upstream.

With the new uapi we don't have the comp flags on the allocation,
so we shouldn't be using the first size that works, we should be
iterating until we get the correct one.

This reduces allocations from 2MB to 64k in lots of places.

Fixes dEQP-VK.memory.allocation.basic.size_8KiB.forward.count_4000
on my ampere/gsp system.

Cc: stable@vger.kernel.org # v6.6
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230811031520.248341-1-airlied@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Dave Airlie 2023-08-11 13:15:20 +10:00 • committed by Greg Kroah-Hartman

parent 09f7520048

commit 59ae50ebf0

1 changed files with 3 additions and 2 deletions

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drivers/gpu/drm/nouveau/nouveau_bo.c

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