Date: Thu, 07 Dec 1995 12:12:04 +0200 From: Mark Murray <mark@grondar.za> To: Peter Wemm <peter@freefall.freebsd.org> Cc: CVS-committers@freefall.freebsd.org, cvs-sys@freefall.freebsd.org Subject: Re: cvs commit: src/sys/i386/isa bt742a.c Message-ID: <199512071012.MAA10454@grumble.grondar.za>
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> peter 95/12/07 01:13:52
>
> Modified: sys/i386/isa bt742a.c
> Log:
> Implement detection of whether or not bounce-buffering is required
> for the particular card in use. At the moment, I've set it to any of
> the bt445S VLB cards (not the bt445C which apparently work) and the
> bt5xx series (isa cards). The 742 and PCI cards should not need it. :-)
>
> It may be useful to have something like this:
> #ifndef BOUNCE_BUFFERS
> if (bounce_buffers_required && more_than_16MB_ram)
> panic("this card requires bounce buffers for more than 16MB ram!")
> #endif
How hard would this be?
if (bounce_buffers_required && more_than_16MB_ram) {
log_message("this card requires bounce buffers for more than 16MB ram!");
turn_on_bounce_buffers();
}
M
--
Mark Murray
46 Harvey Rd, Claremont, Cape Town 7700, South Africa
+27 21 61-3768 GMT+0200
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