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author | Tyrel Datwyler <tyreld@linux.ibm.com> | 2021-04-01 18:13:25 -0600 |
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committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-04-20 14:22:24 +1000 |
commit | 39d0099f94390eb7a677e1a5c9bb56a4daa242a1 (patch) | |
tree | 581ebaaa32930995e7409ae40fd58882cf7b9967 /arch/powerpc/Makefile | |
parent | powerpc/perf: Expose processor pipeline stage cycles using PERF_SAMPLE_WEIGHT_STRUCT (diff) | |
download | linux-dev-39d0099f94390eb7a677e1a5c9bb56a4daa242a1.tar.xz linux-dev-39d0099f94390eb7a677e1a5c9bb56a4daa242a1.zip |
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
Diffstat (limited to 'arch/powerpc/Makefile')
0 files changed, 0 insertions, 0 deletions