Quoting Mika Kuoppala (2020-02-06 16:32:22)
> Chris Wilson <[email protected]> writes:
>
> > Trust that the HW does the right thing after simply updating the
> > PD_DIR_BASE?
>
> Bspec offers an invalidate before writing the base.
>
> So, lets assume the DCLV write is superfluous as it will be
> the same.
>
> Then the sequence would be TLB_INVLIDATE followed by
> PP_DIR_BASE (which will all pds)
I can recommend not doing the
*cs++ = _MASKED_BIT_ENABLE(INSTPM_TLB_INVALIDATE);
first.
-Chris
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