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authorTyrel Datwyler <tyreld@linux.ibm.com>2021-04-01 18:13:25 -0600
committerMichael Ellerman <mpe@ellerman.id.au>2021-04-20 14:22:24 +1000
commit39d0099f94390eb7a677e1a5c9bb56a4daa242a1 (patch)
tree581ebaaa32930995e7409ae40fd58882cf7b9967 /tools/perf/scripts/python/export-to-postgresql.py
parentaf31fd0c9107e400a8eb89d0eafb40bb78802f79 (diff)
powerpc/pseries: Add shutdown() to vio_driver and vio_bus
Currently, neither the vio_bus or vio_driver structures provide support for a shutdown() routine. Add support for shutdown() by allowing drivers to provide a implementation via function pointer in their vio_driver struct and provide a proper implementation in the driver template for the vio_bus that calls a vio drivers shutdown() if defined. In the case that no shutdown() is defined by a vio driver and a kexec is in progress we implement a big hammer that calls remove() to ensure no further DMA for the devices is possible. Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210402001325.939668-1-tyreld@linux.ibm.com
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