1. 05 Sep, 2005 1 commit
  2. 08 Aug, 2005 1 commit
  3. 04 Aug, 2005 1 commit
    • John W. Linville's avatar
      [PATCH] PCI: restore BAR values after D3hot->D0 for devices that need it · fec59a71
      John W. Linville authored
      
      
      Some PCI devices (e.g. 3c905B, 3c556B) lose all configuration
      (including BARs) when transitioning from D3hot->D0.  This leaves such
      a device in an inaccessible state.  The patch below causes the BARs
      to be restored when enabling such a device, so that its driver will
      be able to access it.
      
      The patch also adds pci_restore_bars as a new global symbol, and adds a
      correpsonding EXPORT_SYMBOL_GPL for that.
      
      Some firmware (e.g. Thinkpad T21) leaves devices in D3hot after a
      (re)boot.  Most drivers call pci_enable_device very early, so devices
      left in D3hot that lose configuration during the D3hot->D0 transition
      will be inaccessible to their drivers.
      
      Drivers could be modified to account for this, but it would
      be difficult to know which drivers need modification.  This is
      especially true since often many devices are covered by the same
      driver.  It likely would be necessary to replicate code across dozens
      of drivers.
      
      The patch below should trigger only when transitioning from D3hot->D0
      (or at boot), and only for devices that have the "no soft reset" bit
      cleared in the PM control register.  I believe it is safe to include
      this patch as part of the PCI infrastructure.
      
      The cleanest implementation of pci_restore_bars was to call
      pci_update_resource.  Unfortunately, that does not currently exist
      for the sparc64 architecture.  The patch below includes a null
      implemenation of pci_update_resource for sparc64.
      
      Some have expressed interest in making general use of the the
      pci_restore_bars function, so that has been exported to GPL licensed
      modules.
      Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      fec59a71
  4. 11 Jul, 2005 3 commits
  5. 01 Jul, 2005 1 commit
  6. 04 May, 2005 3 commits
  7. 16 Apr, 2005 1 commit
    • Linus Torvalds's avatar
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds authored
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      
      Let it rip!
      1da177e4