On Thu, May 01, 2003 at 02:32:41PM -0000, ashish anand wrote: > in my kernel source tree i observed in arch/mips/mm/r4xx0.c though > there are other support routines for flush , invalidate and maintain > the cache consistency ..but there is no mention of running purely > uncached using the old style code CONFIG_MIPS_UNCACHED or otherwise. CONFIG_MIPS_UNCACHED still exists but it's only selectable when SMP support is disabled. Usual warning applies - running uncached is not well supported and is extremly slow. It is mostly intended for hardware people who need to observe all actions of the processor externally. Ralf