> > > +
> > > +static inline void
> > > +dlb_movdir64b(void *dest, void *src)
> > > +{
> > > + asm volatile(".byte 0x66, 0x0f, 0x38, 0xf8, 0x02"
> > > + :
> > > + : "a" (dest), "d" (src));
> > > +}
> >
> > NO!
> > We introduced stuff in EAL for this, please double check.
> I also do not see a replacement for the new MOVDIR64B instruction in
> dpdk-next-eventdev or dpdk main.
Ok, what got introduced in EAL is for MOVDIRI.
So here we go with a MOVDIR64B...
Google tells me:
Availability of the MOVDIR64B instruction is indicated by the presence
of the CPUID feature flag MOVDIR64B (bit 28 of the ECX register in
leaf 07H, see “CPUID—CPU Identification” in the Intel® 64 and IA-32
Architectures Software Developer’s Manual, Volume 2A).
I understand that calling this code must be under a check for
RTE_CPUFLAG_MOVDIR64B.
Which I can't find in this patchset.
What did I miss this time?
--
David Marchand
