Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 10 Dec 2001 08:37:07 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 10 Dec 2001 08:36:58 -0500 Received: from lightning.swansea.linux.org.uk ([194.168.151.1]:63751 "EHLO the-village.bc.nu") by vger.kernel.org with ESMTP id ; Mon, 10 Dec 2001 08:36:50 -0500 Subject: Re: mm question To: volodya@mindspring.com Date: Mon, 10 Dec 2001 13:46:13 +0000 (GMT) Cc: linux-kernel@vger.kernel.org In-Reply-To: from "volodya@mindspring.com" at Dec 10, 2001 08:25:39 AM X-Mailer: ELM [version 2.5 PL6] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-Id: From: Alan Cox Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org > How does one do the following task: obtain a bunch of free pages (around > 300K) with physical addresses between certain bounds (more then > 0x4000000, but it is likely this is not constant) reserver them and map to > kernel space so that the driver can access them directly ? We support allocating pages below 16Mb, below 4Gb, or anywhere within RAM on x86. If you want to within a range or your 300K must be a single 300K block then you need to allocate it at boot time - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/