powerpc/eeh: pseries platform EEH wait PE state

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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>

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This commit is contained in:

Gavin Shan 2012-02-27 20:03:58 +00:00 • committed by Benjamin Herrenschmidt

parent eb594a4754

commit b0e5f742f1

4 changed files with 49 additions and 47 deletions

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1

arch/powerpc/include/asm/ppc-pci.h

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46

arch/powerpc/platforms/pseries/eeh.c

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2

arch/powerpc/platforms/pseries/eeh_driver.c

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47

arch/powerpc/platforms/pseries/eeh_pseries.c

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