| To: | Dominic Sweetman <dom@algor.co.uk> |
|---|---|
| Subject: | Re: locking question: do_mmap(), do_munmap() |
| From: | Ralf Baechle <ralf@oss.sgi.com> |
| Date: | Wed, 20 Oct 1999 00:02:42 +0200 |
| Cc: | Ralf Baechle <ralf@oss.sgi.com>, Kanoj Sarcar <kanoj@google.engr.sgi.com>, linux@cthulhu.engr.sgi.com, linux-mips@fnet.fr, linux-mips@vger.rutgers.edu |
| In-reply-to: | <199910190734.IAA00237@gladsmuir.algor.co.uk> |
| References: | <19991015115816.B948@uni-koblenz.de> <199910151750.KAA99441@google.engr.sgi.com> <19991018103733.B3047@uni-koblenz.de> <199910190734.IAA00237@gladsmuir.algor.co.uk> |
On Tue, Oct 19, 1999 at 08:34:30AM +0100, Dominic Sweetman wrote: > > (On the R3000 which allows swapping of i-cache and d-cache for > > diagnostic purposes it actually is possible to have dirty lines in > > the d-cache when it's used as the i-cache... > > Not really; the R3000 caches were always write-through, so the > d-cache can never be dirty and in fact has exactly the same possible > states as the i-cache. Duh... You're of course right. Ralf |
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