On Wed, 7 Apr 2021 at 18:43, Alistair Popple wrote:
>
> Some NVIDIA GPUs do not support direct atomic access to system memory
> via PCIe. Instead this must be emulated by granting the GPU exclusive
> access to the memory. This is achieved by replacing CPU page table
> entries with special swap ent
Some NVIDIA GPUs do not support direct atomic access to system memory
via PCIe. Instead this must be emulated by granting the GPU exclusive
access to the memory. This is achieved by replacing CPU page table
entries with special swap entries that fault on userspace access.
The driver then grants th
