-
These will be used to assign virtual addresses to soft pinned buffers in a later patch. Two allocators are added for separate 'low' and 'high' virtual memory areas. Another alternative would have been to add a double-sided allocator, which wasn't done here just because it didn't appear to give any code complexity advantages. v2 (Scott Phillips): - rename has_exec_softpin to use_softpin (Jason) - Only remove bottom one page and top 4 GiB from virt (Jason) - refer to comment in anv_allocator about state address + size overflowing 48 bits (Jason) - Mention hi/lo allocators vs double-sided allocator in commit message (Chris) - assign state pool memory ranges statically (Jason) v3 (Jason Ekstrand): - Use (LOW|HIGH)_HEAP_(MIN|MAX)_ADDRESS rather than (1 << 31) for determining which heap to use in anv_vma_free - Only return de-canonicalized addresses to the heap Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Jason Ekstrand <jason@jlekstrand.net> Reviewed-by: Scott D Phillips <scott.d.phillips@intel.com>
aaea4624