From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sat, 30 Apr 2005 15:01:21 +1000 From: Chris Collins To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu> Subject: Re: [9fans] forgot to mention ts7200 is working Message-ID: <20050430050121.GA7051@xware.cx> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.3.28i Topicbox-Message-UUID: 4359ae36-ead0-11e9-9d60-3106f5b1d025 Ronald G. Minnich was once rumoured to have said: > this is the ep93xx core. > > it all seems to be working with cache etc. Due to the fact that phsyical > memory is 4 segemnts at present only 16 MB of 32MB is usable. This is the same problem that my current sparc32 code is plauged with -- each bank of physical ram on a SS10 appears on a 64MB boundary, so if a bank has less than 64MBs of RAM... > I also include a modified xalloc.c that lets you allocate "flavors" of > memory, e.g. uncached and cached regions. This may be handy at some point, > esp. when we get to 64-bit machines where at minimum you needed "low 4G" > and "above4G" flavors of memory. Actually, xalloc needs fixing to handle an arbitary number of physical ranges (rather than just the 2 it currently supports). I've been saying this on #plan9 for the past... umm... 3-4 weeks? I'll take a look at your code, try to remember how exactly I intended on patching xalloc before I forgot (I put it aside for one week too many) and see if I can fix it so we can use all the ram in both the SS10 and in the ts7200 as well... C.