From mboxrd@z Thu Jan 1 00:00:00 1970 Message-Id: <9908120516.AA43198@marc.watson.ibm.com> To: Richard Henderson Cc: Paul.Mackerras@cs.anu.edu.au, Jes.Sorensen@cern.ch, Geert.Uytterhoeven@cs.kuleuven.ac.be, linuxppc-dev@lists.linuxppc.org, linux-fbdev@vuser.vu.union.edu Subject: Re: [linux-fbdev] Re: readl() and friends and eieio on PPC In-Reply-To: Message from Richard Henderson of "Wed, 11 Aug 1999 21:40:49 PDT." <19990811214049.A14692@cygnus.com> Date: Thu, 12 Aug 1999 01:16:14 -0400 From: David Edelsohn Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: >>>>> Richard Henderson writes: >> My position is that if you can provide the ordering at essentially >> zero cost, then it is an advantage to have it since more drivers will >> work that way. Richard> But it isn't zero cost. It's not high cost, but that's not the same thing. Is your assumption that you want to provide the infrastructure to write high-performance device drivers or to write device drivers that don't require as much expertise and knowledge to produce correct results? There are conflicting goals in this design providing different benefits to Linux. David [[ This message was sent via the linuxppc-dev mailing list. Replies are ]] [[ not forced back to the list, so be sure to Cc linuxppc-dev if your ]] [[ reply is of general interest. Please check http://lists.linuxppc.org/ ]] [[ and http://www.linuxppc.org/ for useful information before posting. ]]