From owner-cvs-all Thu Mar 22 12:32:52 2001 Delivered-To: cvs-all@freebsd.org Received: from harmony.village.org (rover.bsdimp.com [204.144.255.66]) by hub.freebsd.org (Postfix) with ESMTP id 1BA0037B722; Thu, 22 Mar 2001 12:32:41 -0800 (PST) (envelope-from imp@harmony.village.org) Received: from harmony.village.org (localhost.village.org [127.0.0.1]) by harmony.village.org (8.11.1/8.11.1) with ESMTP id f2MKWb904841; Thu, 22 Mar 2001 13:32:37 -0700 (MST) (envelope-from imp@harmony.village.org) Message-Id: <200103222032.f2MKWb904841@harmony.village.org> To: Robert Watson Subject: Re: cvs commit: src/etc MAKEDEV Cc: Takahashi Yoshihiro , sos@FreeBSD.org, jkh@FreeBSD.org, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org In-reply-to: Your message of "Thu, 22 Mar 2001 10:30:42 EST." References: Date: Thu, 22 Mar 2001 13:32:36 -0700 From: Warner Losh Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message Robert Watson writes: : It's useful to note that the primary source of problems with AD that I : have observed is overly agressive use of DMA instead of PIO for devices : that don't support it. I wonder if that's something we could be doing : better? The primary problem with the pc-98 architecture is that the I/O ports aren't contiguous. But it looks like the ide controller is. It is hard to tell since it still uses the shims. mse0: at port 0x7fd9,0x7fdb,0x7fdd,0x7fdf irq 13 on isa0 ed3 at port 0xd0-0xdf,0x2d0,0x2d2,0x2d4,0x2d6,0x2d8,0x2da,0x2dc,0x2de,0x3d0,0x3d2,0x3d4,0x3d6,0x3d8,0x3da,0x3dc,0x3de irq 5 drq 0 flags 0x400000 on isa0 ed3: address 00:40:26:0f:0e:b1, type LGY-98 (16 bit) are two of the devices on my pc98 laptop running 4.3-beta. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message