c84be162a1
This reverts commit 0b85476d86.
When mapping a BO in v3d, the map keeps forever until freeing the BO. If
later the map is required again, we reuse the map instead of doing the
map from scratch.
This saves calling map/unmap continuously, as well as a mechanism to
keep control of the map usage, like a reference count.
Thus, when reallocating a BO, if it is mapped it just means the map was
used in the past, but not necessarily it is in use right now.
The reverted commit was causing performance regressions in multiple
applications, reducing from 60fps to 5fps.
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/11783
Backport-to: 24.2
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31049>
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