Date: Wed, 18 Aug 1999 15:04:50 +0100 (BST) From: Doug Rabson <dfr@nlsystems.com> To: Peter Wemm <peter@netplex.com.au> Cc: alpha@freebsd.org Subject: Re: rman_get_virtual() on alpha Message-ID: <Pine.BSF.4.10.9908181503430.72739-100000@salmon.nlsystems.com> In-Reply-To: <19990818125707.40B7F1C1F@overcee.netplex.com.au>
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On Wed, 18 Aug 1999, Peter Wemm wrote: > So, what's the situation these days with rman_get_virtual()? if_fxp explodes > on the alpha because it allocates SYS_RES_MEMORY and wants the virtual > address of it, but the alpha still is returning physical addresses it seems. > > It seems to me we might need some alternative to rman_get_virtual since it > doesn't have enough context and is just a hack. Perhaps allocating memory > and activating a mapping etc needs to be seperate bus methods? That way we > can allocate memory, and later activate it (pmap_mapdev on x86, BWX, or > DENSE on Alpha as requested) and free it's kvm mappings? The fxp driver should probable use SYS_RES_DENSE to get the right virtual pointer. It would certainly be a lot cleaner to separate the resource allocation from the virtual mapping. -- Doug Rabson Mail: dfr@nlsystems.com Nonlinear Systems Ltd. Phone: +44 181 442 9037 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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