On Fri, 15 May 2015, Ralf Baechle wrote: > Only to repeat for the benefit of the mailing list readers what I already > wrote on IRC recently. The 7 NOPs sequence will send the uncached > write-back buffer of the R4400 but not R4000 off-chip. Well, the R4000 doesn't have such a buffer, so there's simply nothing to send. :) And in any case issuing a SYNC followed by a load operation is the proper architectural way to send any outstanding writes off the chip. Maciej
