When attempting to allocate more than Dawn's budget within a single
serial, all heaps in the LRU will be un-evictable because the last
submission serial is the same as the current serial. We can work
around this by instead using the LockHeap and UnlockHeap functions
instead of EnsureCanMakeResident when calling CreatePlacedResource.
Also added in some additional comments regarding the last submission serial.
Bug: dawn:193
Change-Id: Ie4ec7ed5350b0858ea817431fbf77df6ca8acd96
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18622
Commit-Queue: Brandon Jones <brandon1.jones@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Rafael Cintron <rafael.cintron@microsoft.com>
Use D3D12's QueryDeviceVideoMemoryInfo to get the OS-determined process
budget. Also introduces an export for reserving some amount of process
memory - which keeps Dawn from using the entire process's budget.
Bug: dawn:193
Change-Id: I6c17bd703d7cb24759bcee89c03add46944fec8c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/16383
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
