On Mon, 9 Aug 1999, Paul Mackerras wrote:

David A. Gatwood [off-list ref] wrote:

quoted

You mean for IDE?  Check the MkLinux driver.  One of Apple's folks ported
some OS X (server?) code in for IDE DMA timings a couple months back.

I saw some code in the macosx driver that looks in the driveid and
figures it all out - is that what you mean?

I have _no_ idea where in the code the guy found this stuff.  :-)

I guess I was asking whether there was already some nifty function in
the Linux kernel that did for DMA modes what ide_get_best_pio_mode
does for PIO modes.

Also, do you have a cvsweb server for your cvs repository?  I don't
want to have to checkout 10s of MB of source just to look at a couple
of files. :-)  (See http://samba.org/cvs.html if you haven't come
across cvsweb before.)

I haven't set up CVSweb, but you can just check out a couple of files.
The relevant ones are

osfmk/src/mach_kernel/ppc/POWERMAC/wd.c
osfmk/src/mach_kernel/ppc/POWERMAC/wdreg.h
osfmk/src/mach_kernel/ppc/POWERMAC/wd_entries.h

And you're right, I should set that up....  :-)


Later,
David


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