On Fri, 2015-07-17 at 11:53 +1000, Benjamin Herrenschmidt wrote: > On Fri, 2015-07-10 at 15:19 +1000, Samuel Mendoza-Jonas wrote: > > +#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_PPC_POWERNV) > > + li r3,(FW_FEATURE_OPAL >> 16) > > + rldicr r3,r3,16,63 > > + and. r3,r3,r26 > > + cmpwi r3,0 > > + beq 99f > > If FW_FEATRURE_OPAL is 0x80000000 then the li will sign extend. > > The rldicr has a mask of all F's so it will keep all the bits you > don't care about.
../.. Even better, you should be able to just do it all in C in pnv_kexec_cpu_down(), after we wait for secondaries to be in OPAL. At that point interrupts are already off, so it should be all good. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
