Commit de591cff03161df5601291ac3deef54933d209a4
2023-12-11T13:15:30
Vulkan: Add CachedCoherent staging buffer Right now if we allocate a coherent staging buffer, it always uncached. I believe the reason it picked uncached is that most usage for staging buffer is data flow from CPU to GPU. CPU only sequentially write into staging buffer. Uncached may has better performance here due to write combined. But this performs horrible if CPU ever read from it. This CL adds a CachedCoherent staging buffer and let staging buffer use that for coherent memory. UncachedCoherent is currently not used, but I still kept here in case we find regression for certain type of usage. Bug: b/315836169 Change-Id: Ica331914c1f4729baa9d2eab048dc3099a2887b5 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5112759 Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com> Commit-Queue: Charlie Lao <cclao@google.com>