Date: Sun, 04 Mar 2001 15:16:28 -0800 (PST) From: John Baldwin <jhb@FreeBSD.org> To: Doug Rabson <dfr@nlsystems.com> Cc: ia64@FreeBSD.org, Andrew Gallatin <gallatin@cs.duke.edu> Subject: Re: Grrrr.. Message-ID: <XFMail.010304151628.jhb@FreeBSD.org> In-Reply-To: <Pine.BSF.4.33.0103031109410.53125-100000@herring.nlsystems.com>
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On 03-Mar-01 Doug Rabson wrote: > On Fri, 2 Mar 2001, John Baldwin wrote: > >> >> On 02-Mar-01 Andrew Gallatin wrote: >> > >> > Doug Rabson writes: >> > > >> > > I remember now. I always intended to redo pmap_map() via the >> > > direct-mapped >> > > segments. This saves kernel virtual address space (of which there is >> > > plenty) but more importantly saves TLB entries and on ia64 VHTP >> > > entries. I >> > > just hacked up this patch which isn't tested on anything but I think >> > > its >> > > on the right lines. Beware of conflicts - Drew Gallatin is working in >> > > this >> > > area. >> > > >> > >> > I'm done now (and your latest patch at the top of this thread >> > incorporates my committed changes). >> > >> > I really like using the direct-mapped segment for this. >> >> I'm going to test this out on my alpha and i386 test boxes here at work. >> If it works there, I think it should probably be committed. Not that I >> am overwhelmed with pmap Clue atm. :) > > I would appreciate it if you could test on i386 since I'm not currently in > a position to to i386 kernel work. It certainly appears to work on ia64 > and I don't expect problems on alpha (I'll probably test that myself > shortly though). Alpha booted ok. The i386 patch had a typo, but it hung when I rebooted it with the new kernel. I may drive in today to try and fix it, but I may not get to it until tomorrow. :-P The patch I'm using now is at ~jhb/public_html/patches/pmap.patch on freefall. The only changes are removing one register keyword from vm_page_startup() to quiet a warning and fixing a typo (virtp -> virt) in the i386 diff. -- John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-ia64" in the body of the messagehelp
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