Re: [patch 2.6.13-rc3] pci: restore BAR values after D3hot->D0 for devices that need it

On 7/27/05, John W. Linville <[email protected]> wrote:
> 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.
> 

Is it just me or will this stuff help the kexec guys as well?  They seem 
to have lots of problems because drivers put the device into D3 before the 
reload of the new kernel.  I think this might help.

Jesse
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---

• References:
  • Re: [patch 2.6.12 (repost w/ corrected subject)] pci: restore BAR values in pci_enable_device_bars
    • From: Ivan Kokshaysky <[email protected]>
  • Re: [patch 2.6.12 (repost w/ corrected subject)] pci: restore BAR values in pci_enable_device_bars
    • From: "David S. Miller" <[email protected]>
  • Re: [patch 2.6.12 (repost w/ corrected subject)] pci: restore BAR values in pci_enable_device_bars
    • From: Ivan Kokshaysky <[email protected]>
  • Re: [patch 2.6.12 (repost w/ corrected subject)] pci: restore BAR values in pci_enable_device_bars
    • From: "David S. Miller" <[email protected]>
  • Re: [patch 2.6.12 (repost w/ corrected subject)] pci: restore BAR values in pci_enable_device_bars
    • From: Ivan Kokshaysky <[email protected]>
  • [patch 2.6.13-rc2] pci: restore BAR values from pci_set_power_state for D3hot->D0
    • From: "John W. Linville" <[email protected]>
  • Re: [patch 2.6.13-rc2] pci: restore BAR values from pci_set_power_state for D3hot->D0
    • From: Greg KH <[email protected]>
  • Re: [patch 2.6.13-rc2] pci: restore BAR values from pci_set_power_state for D3hot->D0
    • From: "John W. Linville" <[email protected]>
  • Re: [patch 2.6.13-rc2] pci: restore BAR values from pci_set_power_state for D3hot->D0
    • From: "John W. Linville" <[email protected]>
  • [patch 2.6.13-rc3] pci: restore BAR values after D3hot->D0 for devices that need it
    • From: "John W. Linville" <[email protected]>

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