From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from hancock.sc.steeleye.com (nat9.steeleye.com [65.114.3.137]) by dsl2.external.hp.com (Postfix) with ESMTP id 87FEC4875 for ; Mon, 25 Aug 2003 13:48:43 -0600 (MDT) Received: from mulgrave-w.il.steeleye.com (il-ppp.sc.steeleye.com [172.17.6.240]) by hancock.sc.steeleye.com (8.11.6/linuxconf) with ESMTP id h7PJmfI13464; Mon, 25 Aug 2003 15:48:41 -0400 Subject: Re: [parisc-linux] Re: [parisc-linux-cvs] linux carlos From: James Bottomley To: Grant Grundler Cc: PARISC list In-Reply-To: <20030825191915.GA377@dsl2.external.hp.com> References: <3F2E2C7700004E38@ocpmta2.freegates.net> <20030825164553.GB28778@dsl2.external.hp.com> <1061830247.2044.165.camel@mulgrave> <20030825191915.GA377@dsl2.external.hp.com> Content-Type: text/plain Date: 25 Aug 2003 14:48:40 -0500 Message-Id: <1061840921.2044.368.camel@mulgrave> Mime-Version: 1.0 Sender: parisc-linux-admin@lists.parisc-linux.org Errors-To: parisc-linux-admin@lists.parisc-linux.org List-Help: List-Post: List-Subscribe: , List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: On Mon, 2003-08-25 at 14:19, Grant Grundler wrote: > That's not technically possible. > PARISC firmware uses the HPA to reference specific devices (including CPU). > > We can use the same CPU number as PAT PDC and call them "physical". > But systems which don't have PAT PDC can only use arbitrary numbers > assigned by the parisc-linux startup code. Maybe there is a way to > make the numbers match PIM info output but I'm not sure how. Realistically, "logical" just means we make up a numbering scheme independent of what the HW tells us. If the HW isn't telling us anything, then us telling the HW is fine. The gist of the "no more logical mappings edict" is that basically we only have one source for CPU numbers (and it can be sparse) rather than two, one of which was usually compact. James