On Tuesday, October 09, 2012 2:45:08 pm John Baldwin wrote: > Author: jhb > Date: Tue Oct 9 18:45:08 2012 > New Revision: 241378 > URL: http://svn.freebsd.org/changeset/base/241378 > > Log: > MFC 201279,201280,201286,213907,214146,220195,222753,223371,225515,235833: > Various fixes to managing PCI BARs including proper support for managing > PCI ROM BARs: > - Teach the PCI bus driver to handle PCIR_BIOS BARs properly and remove > special handling for the PCIR_BIOS decoding enable bit from the cardbus > driver. The PCIR_BIOS BAR does include type bits like other BARs. > Instead, it is always a 32-bit non-prefetchable memory BAR where the low > bit is used as a flag to enable decoding. > - Explicitly track the state of all known BARs for each PCI device. The PCI > bus driver will now remember the size of a BAR obtained during the initial > bus scan and use that size when doing lazy resource allocation rather than > resizing the BAR. The bus driver will now also report unallocated BARs to > userland for display by 'pciconf -lb'. > - Add a constant for the offset of the ROM BIOS BAR in PCI-PCI bridges and > properly handle ROM BIOS BARs in PCI-PCI bridges. The PCI bus now also > properly handles the lack of a ROM BIOS BAR in a PCI-Cardbus bridge. > > Tested by: John Kozubik john kozubik com
In particular this fixes problems with the cardbus driver not being able to read CIS information from cards that stored their CIS in a PCI ROM BAR. -- John Baldwin _______________________________________________ svn-src-all@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
