Date: Mon, 11 Feb 2002 09:25:08 -0700 (MST) From: "M. Warner Losh" <imp@village.org> To: jcm@FreeBSD-uk.eu.org Cc: freebsd-hackers@FreeBSD.ORG, freebsd-newbus@FreeBSD.ORG Subject: Re: Adding newbus abstraction to parallel port devices Message-ID: <20020211.092508.58410452.imp@village.org> In-Reply-To: <20020211134143.A24762@dogma.freebsd-uk.eu.org> References: <20020211134143.A24762@dogma.freebsd-uk.eu.org>
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In message: <20020211134143.A24762@dogma.freebsd-uk.eu.org>
j mckitrick <jcm@FreeBSD-uk.eu.org> writes:
: Since the purpose of the microsequences was (a) hardware abstraction and
: (b) to increase speed, how could this be re-written to use newbus
: instead without a performance loss?
Can you give one or two examples? Most of the bus_space* macros
compile down into the same sequences as the older inb/outb.
Warner
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