From owner-freebsd-hackers Wed Dec 9 02:52:56 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id CAA29833 for freebsd-hackers-outgoing; Wed, 9 Dec 1998 02:52:56 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from relay.mod.uk (relay.mod.uk [192.5.29.50]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id CAA29828 for ; Wed, 9 Dec 1998 02:52:54 -0800 (PST) (envelope-from druid@atc.dera.gov.uk) Received: from hermes.dra.hmg.gb by relay.mod.uk with local SMTP id ; Wed, 9 Dec 1998 10:43:55 +0000 Received: from atc.dera.gov.uk by hermes.dra.hmg.gb (MX V4.2 VAX) with SMTP; Wed, 09 Dec 1998 10:43:33 GMT Received: from atc.dera.gov.uk by atc.dera.gov.uk (SMI-8.6/SMI-SVR4) id KAA09145; Wed, 9 Dec 1998 10:43:28 GMT Message-ID: <366E5451.D95C8C6D@atc.dera.gov.uk> Date: Wed, 09 Dec 1998 10:43:29 +0000 From: Mark Templeton Organization: ATC Systems Group, DERA Malvern X-Mailer: Mozilla 4.05 [en] (X11; I; SunOS 5.6 sun4u) MIME-Version: 1.0 To: freebsd-hackers@FreeBSD.ORG Subject: Memory holes for ISA device drivers Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG OS is 2.2.5 Card is on ISA bus, preferably at 0xA00000. How do I create a (physical) memory hole for a card, as the card holds 64k shared memory? The target system BIOS does not support the 15-16M memory hole. pmap_mapdev() maps physical to virtual memory, but does not create a hole. How do I create a memory hole? Mark. -- 0 00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 The Druid 0 B1013, DERA Malvern, Internet: Mark.Templeton@atc.dera.gov.uk St Andrews Road, Janet : Mark.Templeton@uk.mod.hermes Malvern, Worcs., WR14 3PS, Phone: +44-1684-894213 United Kingdom, Fax: +44-1684-894109 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message