svn commit: r188018 - in head: sys/dev/pci usr.sbin/pciconf
nwhitehorn at freebsd.org
Wed Feb 25 10:26:37 PST 2009
John Baldwin wrote:
> Author: jhb
> Date: Mon Feb 2 19:54:16 2009
> New Revision: 188018
> URL: http://svn.freebsd.org/changeset/base/188018
> - 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.
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