powerpc/eeh: pseries platform EEH wait PE state
authorGavin Shan <shangw@linux.vnet.ibm.com>
Mon, 27 Feb 2012 20:03:58 +0000 (20:03 +0000)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Fri, 9 Mar 2012 00:10:39 +0000 (11:10 +1100)
commitb0e5f742f1816bebedabeb6844be1a598bd50a91
tree16872bc2b9a96f45ea3d409b72b42bf31d5b28a8
parenteb594a4754e71e41c048e0f1559bb6f13dab7070
powerpc/eeh: pseries platform EEH wait PE state

On pSeries platform, the PE state might be temporarily unavailable.
In that case, the firmware will return the corresponding wait time.
That means the kernel has to wait for appropriate time in order to
get the PE state.

The patch does the implementation for that. Besides, the function
has been abstracted through struct eeh_ops::wait_state so that EEH core
components could support multiple platforms in future.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/include/asm/ppc-pci.h
arch/powerpc/platforms/pseries/eeh.c
arch/powerpc/platforms/pseries/eeh_driver.c
arch/powerpc/platforms/pseries/eeh_pseries.c