>> To use VM_ALLOW_ANY_UNCACHED flag, the platform must guarantee that >> no action taken on the MMIO mapping can trigger an uncontained >> failure. The Grace Hopper satisfies this requirement. So set >> the VM_ALLOW_ANY_UNCACHED flag in the VMA. >> >> Applied over next-20240227. >> base-commit: 22ba90670a51 >> >> Link: https://lore.kernel.org/all/20240220115055.23546-4-ankita@xxxxxxxxxx/ [1] >> Link: https://www.nvidia.com/en-in/technologies/multi-instance-gpu/ [2] >> Link: https://developer.arm.com/documentation/ddi0487/latest/ section D8.5.5 [3] >> Link: https://lore.kernel.org/all/20240224150546.368-1-ankita@xxxxxxxxxx/ [4] >> >> Cc: Alex Williamson <alex.williamson@xxxxxxxxxx> >> Cc: Kevin Tian <kevin.tian@xxxxxxxxx> >> Cc: Jason Gunthorpe <jgg@xxxxxxxxxx> >> Cc: Vikram Sethi <vsethi@xxxxxxxxxx> >> Cc: Zhi Wang <zhiw@xxxxxxxxxx> >> Signed-off-by: Ankit Agrawal <ankita@xxxxxxxxxx> >> --- >> drivers/vfio/pci/nvgrace-gpu/main.c | 11 ++++++++++- >> 1 file changed, 10 insertions(+), 1 deletion(-) > > Applied to vfio next branch for v6.9. > > Oliver, FYI I did merge the branch you provided in [1] for this, thanks > for the foresight in providing that. > > Alex > > [1]https://lore.kernel.org/all/170899100569.1405597.5047894183843333522.b4-ty@xxxxxxxxx/ Many thanks Alex, appreciate your help with this!
