From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sun, 4 Jun 2000 10:48:44 -0700 From: Daniel Jacobowitz To: linuxppc-dev@lists.linuxppc.org Subject: Re: [patch] VRAM detection in controlfb Message-ID: <20000604104844.A13914@quaketop.them.org> References: <00060311160100.00693@enzo.bigblue.local> <200006040709.JAA00760@piglet.grunz.lu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: ; from nicoya@apia.dhs.org on Sun, Jun 04, 2000 at 10:08:39AM -0500 Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: On Sun, Jun 04, 2000 at 10:08:39AM -0500, Tony Mantler wrote: > dcbi = data cache block invalidate. If you do this on a dirty cache block, > data will be lost. > > dcbf = data cache block flush. If you do this on a block that isn't in a > coherent state, data will be lost. > > If you have a block that's both dirty and incoherent... well, don't do that. :) Ew. I wonder if that's our problem... Dan /--------------------------------\ /--------------------------------\ | Daniel Jacobowitz |__| SCS Class of 2002 | | Debian GNU/Linux Developer __ Carnegie Mellon University | | dan@debian.org | | dmj+@andrew.cmu.edu | \--------------------------------/ \--------------------------------/ ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/