Add pcibios_rescan_prepare()/_done() hooks for the powerpc platform. Now if the device's driver supports movable BARs, pcibios_rescan_prepare() will be called after the device is stopped, and pcibios_rescan_done() - before it resumes. There are no memory requests to this device between the hooks, so it it safe to rebuild the EEH address cache during that.
CC: Oliver O'Halloran <ooh...@gmail.com> Signed-off-by: Sergey Miroshnichenko <s.miroshniche...@yadro.com> --- arch/powerpc/kernel/pci-hotplug.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/powerpc/kernel/pci-hotplug.c b/arch/powerpc/kernel/pci-hotplug.c index 0b0cf8168b47..18cf13bba228 100644 --- a/arch/powerpc/kernel/pci-hotplug.c +++ b/arch/powerpc/kernel/pci-hotplug.c @@ -144,3 +144,13 @@ void pci_hp_add_devices(struct pci_bus *bus) pcibios_finish_adding_to_bus(bus); } EXPORT_SYMBOL_GPL(pci_hp_add_devices); + +void pcibios_rescan_prepare(struct pci_dev *pdev) +{ + eeh_addr_cache_rmv_dev(pdev); +} + +void pcibios_rescan_done(struct pci_dev *pdev) +{ + eeh_addr_cache_insert_dev(pdev); +} -- 2.21.0