[parisc-linux] 2.4.0-test6 lack of speed

Richard Hirst rhirst@linuxcare.com
Thu, 24 Aug 2000 14:46:17 +0100

On Wed, Aug 23, 2000 at 10:38:13AM -0600, Paul Bame wrote:
> jsm explained to me that the F?CE and P?TLBE instructions should
> only be used "for flushing the entire data or combined cache".
> The operands of F?CE/P?TLBE are "an implementation-dependent function
> of the effective address", essentially an opaque data type that
> varies per processor.  The operand of F?C/P?TLB is a virtual address,
> so is the right thing to use for flushing a range of addresses.

OK, thanks.  We use F?CE/P?TLBE in cache.h atm.