diff options
author | Scott D Phillips <[email protected]> | 2018-03-07 09:18:37 -0800 |
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committer | Jason Ekstrand <[email protected]> | 2018-05-31 16:51:46 -0700 |
commit | aaea46242d651a1b03f7292ac89a68f8a9086692 (patch) | |
tree | ee334a68d3d6fe24a065ad05cfa7190787aa47a3 /scons/x11.py | |
parent | 6e4672f881bbc73c56b0d81dfea93d09f8d39eec (diff) |
anv: Add vma_heap allocators in anv_device
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 <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Reviewed-by: Scott D Phillips <[email protected]>
Diffstat (limited to 'scons/x11.py')
0 files changed, 0 insertions, 0 deletions