Austin Eng cf1fdf413c Handle OOM buffer allocations better
This CL checks buffer sizes before creating map read/write handles.
It is an error to map a buffer that can't be addressed on the CPU.

It also changes client-side synchronous errors on mapAsync to be
normal map failures, and not device lost errors. These should be
recoverable.

The CL adds additional testing for really large, but not UINT64_MAX
buffers, and fixes a VVL warning when buffer allocations exceed the
size of their memory heap.

Bug: dawn:450, dawn:398, chromium:1014740
Change-Id: Ieb34c04c3d01c429b7e3b7810729d5e91ecb6270
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22626
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
2020-06-15 23:42:13 +00:00
..
2020-06-11 00:34:14 +00:00