From mboxrd@z Thu Jan 1 00:00:00 1970 From: "David S. Miller" Date: Thu, 25 Apr 2002 00:43:18 +0000 Subject: [Linux-ia64] Re: PCI DAC routines for SN Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org From: Jesse Barnes Date: Wed, 24 Apr 2002 17:36:52 -0700 Ok, so there's no performance argument against adding the call. You're just saying that since there are enough 32 bit mappings to go around, using 64 bit mappings is silly. Right? We don't add things to Linux that we "might need" we add things we actually need. It is a slight performance problem too. I don't think the hardware folks would be happy to hear that you're willing to sacrifice real hardware cycles just for some DAC nirvana or whatever it is you have for this issue.