I don't suppose anyone has a primer or white paper on the High Memory stuff? i.e. Applications, requirements, or a quick HOWTO? Matt -- Matthew D. Dharm Senior Software Designer Momentum Computer Inc. 1815 Aston Ave. Suite 107 (760) 431-8663 X-115 Carlsbad, CA 92008-7310 Momentum Works For You www.momenco.com > -----Original Message----- > From: kwalker@broadcom.com [mailto:kwalker@broadcom.com] > Sent: Wednesday, May 15, 2002 2:56 PM > To: Matthew Dharm > Cc: Linux-MIPS > Subject: Re: MIPS 64? > > > > Since traditionally the mips kernel could only manage RAM > reachable by > Kseg you were limited to 512MB, right? But now the High > Memory stuff is > stable enough that you can reach any RAM that's physically > addressable > in 32-bits. And after that, there's the 64bit-physical-address > extension which allows you to reach physical pages that > need > 32-bits > to address. > > Kip > > Daniel Jacobowitz wrote: > > > > On Wed, May 15, 2002 at 02:34:47PM -0700, Matthew Dharm wrote: > > > So... I'm looking at porting Linux to a system with > 1.5GiB of RAM. > > > That kinda blows the 32-bit MIPS port option right out > of the water... > > > > Not unless you count bits differently than I do... 32-bit > is 4 GiB. Is > > there any reason MIPS has special problems in this area? > > > > > > > > What does it take to do a 64-bit port? The first > problem I see is the > > > boot loader -- do I have to be in 64-bit mode when the > kernel starts, > > > or can I start in 32-bit mode and then transfer to 64-bit mode? > > > > > > I looked in the arch/mips64/ directory, but I don't see much for > > > specific boards there, but there are references to the Malta > > > boards.... > > > > > > Matt > > > > > > -- > > > Matthew D. Dharm Senior > Software Designer > > > Momentum Computer Inc. 1815 Aston > Ave. Suite 107 > > > (760) 431-8663 X-115 Carlsbad, > CA 92008-7310 > > > Momentum Works For You www.momenco.com > > > > > > > > > > -- > > Daniel Jacobowitz Carnegie > Mellon University > > MontaVista Software Debian > GNU/Linux Developer >
