tree dd80359920778d52139a2e914838da06a45da7cb
parent c3c2c9b6b09c5f7cdd6cebe77e29dbc2e16eaa4a
author Austin Eng <enga@chromium.org> 1592264533 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1592264533 +0000

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>