On Tue, 3 May 2022 12:01:52 -0500, Reza Arbab wrote:
> The hardware bug in POWER9 preventing use of the DAWR was fixed in
> DD2.3. Set the CPU_FTR_DAWR feature bit on these newer systems to start
> using it again, and update the documentation accordingly.
>
> The CPU features for DD2.3 are currently determined by "DD2.2 or later"
> logic. In adding DD2.3 as a discrete case for the first time here, I'm
> carrying the quirks of DD2.2 forward to keep all behavior outside of
> this DAWR change the same. This leaves the assessment and potential
> removal of those quirks on DD2.3 for later.
>
> [...]
Applied to powerpc/next.
[1/1] powerpc: Enable the DAWR on POWER9 DD2.3 and above
https://git.kernel.org/powerpc/c/26b78c81e84c5133b299fb11bf17ec1a3d2ad217
cheers
