svn commit: r188018 - in head: sys/dev/pci usr.sbin/pciconf
John Baldwin
jhb at freebsd.org
Wed Feb 25 09:51:38 PST 2009
On Wednesday 25 February 2009 12:27:23 pm Nathan Whitehorn wrote:
> John Baldwin wrote:
> > Author: jhb
> > Date: Mon Feb 2 19:54:16 2009
> > New Revision: 188018
> > URL: http://svn.freebsd.org/changeset/base/188018
> >
> > Log:
> > - Add a new ioctl to /dev/pci to fetch details on an individual BAR of a
> > device. The details include the current value of the BAR (including all
> > the flag bits and the current base address), its length, and whether or not
> > it is enabled. Since this operation is not invasive, non-root users are
> > allowed to use it (unlike manual config register access which requires
> > root). The intention is that userland apps (such as Xorg) will use this
> > interface rather than dangerously frobbing the BARs from userland to
> > obtain this information.
> > - Add a new sub-mode to the 'list' mode of pciconf. The -b flag when used
> > with -l will now list all the active BARs for each device.
> >
>
> Do you happen to have any patches for libpciaccess to use this?
>
> Libpciaccess (and so the latest Xorg server) hoses my PowerPC machine
> when trying to list BARs, but pciconf -b works correctly. There are
> probably endianness problems in the libpciaccess code, and it would be
> nice to just replace that mess with this interface.
No, I don't have any patches. rnoland@ might. This interface was explicitly
designed to replace mess in libpciaccess. :)
--
John Baldwin
More information about the svn-src-head
mailing list