Re: [committed] amdgcn: XNACK support

2023-12-18 Thread Thomas Schwinge
Hi Andrew! On 2023-12-13T15:46:45+, Andrew Stubbs wrote: > Some AMD GCN devices support an "XNACK" mode in which the device can > handle page-misses (and maybe other traps in memory instructions), but > it's not completely invisible to software. > > We need this now to support OpenMP Unified

[committed] amdgcn: XNACK support

2023-12-13 Thread Andrew Stubbs
Some AMD GCN devices support an "XNACK" mode in which the device can handle page-misses (and maybe other traps in memory instructions), but it's not completely invisible to software. We need this now to support OpenMP Unified Shared Memory (I plan to post updated patches for that in January),