[PATCH v3 00/6] Follow-up fixes for EEH on PowerNV

[Gavin Shan]

The series of patches are follow-up in order to make EEH workable for PowerNV
platform on Juno-IOC-L machine. Couple of issues have been fixed with help of
Ben:

	- Check PCIe link after PHB complete reset
	- Restore config space for bridges
	- The EEH address cache wasn't built successfully
	- Misc cleanup on output messages
	- Misc cleanup on EEH flags maintained by "struct pnv_phb"
	- Misc cleanup on properties of functions to avoid build warnings
 
The series of patches have been verified on Juno-IOC-L machine:

Trigger frozen PE:

        echo 0x0000000002000000 > /sys/kernel/debug/powerpc/PCI0000/err_injct
        sleep 1
        echo 0x0 > /sys/kernel/debug/powerpc/PCI0000/err_injct

Trigger fenced PHB:

	echo 0x8000000000000000 > /sys/kernel/debug/powerpc/PCI0000/err_injct


Changelog:
==========

v2 -> v3:
	* Fix overwritten buffer while collecting data
	  from PCI config space.
v1 -> v2:
	* Remove the mechanism to block PCI-CFG and MMIO.
	* Add one patch to do cleanup on output messages.
	* Add one patch to avoid build warnings.
	* Split functions to restore BARs for PCI devices and bridges separately.

---

arch/powerpc/include/asm/eeh.h            |    4 +-
arch/powerpc/kernel/eeh.c                 |   43 ++++++--
arch/powerpc/kernel/eeh_cache.c           |    4 +-
arch/powerpc/kernel/eeh_pe.c              |  157 ++++++++++++++++++++++++++---
arch/powerpc/platforms/powernv/eeh-ioda.c |   33 ++++---
arch/powerpc/platforms/powernv/pci-ioda.c |    1 +
arch/powerpc/platforms/powernv/pci.c      |    4 +-
arch/powerpc/platforms/powernv/pci.h      |    7 +-
8 files changed, 207 insertions(+), 46 deletions(-)

Thanks,
Gavin