Graphics memory is now dynamically "stolen" from system memory when
required, and given back when unused. It is taken in 16MB blocks. This
feature makes the GMA_MEM ToolType redundant, so support for it has
been removed.
Also, memory allocated through the Gallium WinSys API is now cleared.
It is cleared under Linux (see e.g. drm_intel_gem_bo_alloc_internal()
in intel_bufmgr_gem.c, where calloc() is used), and not clearing it was
causing instability.
git-svn-id: https://svn.aros.org/svn/aros/trunk/AROS@50210 fb15a70f-31f2-0310-bbcc-cdcc74a49acc