On Thu, 3 Apr 2025 13:33:15 -0500 Terry Bowman <terry.bowman@xxxxxxx> wrote: > From: Nathan Fontenot <nathan.fontenot@xxxxxxx> > > The dax hmem device initialization will consume any iomem > SOFT RESERVE resources prior to CXL region creation. To allow > for the CXL driver to complete region creation and trim any > SOFT RESERVE resources before the dax driver consumes them > we need to delay the dax driver's search for SOFT RESERVEs. > > To do this the dax driver hmem device initialization code > skips the walk of the iomem resource tree if the CXL ACPI > driver is enabled. This allows the CXL driver to complete > region creation and trim any SOFT RESERVES. Once the CXL > driver completes this, the CXL driver then registers any > remaining SOFT RESERVE resources with the dax hmem driver. > > Signed-off-by: Nathan Fontenot <nathan.fontenot@xxxxxxx> > Signed-off-by: Terry Bowman <terry.bowman@xxxxxxx> Looks fine to me, but I'm not feeling confident enough of this area of the kernel to give a tag. Jonathan
