powerpc/fadump: add helper functions

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Add helper functions to setup & free CPU notes buffer and to find if a
given memory area is contiguous. Also, use boolean as return type for
the function that finds if boot memory area is contiguous. While at
it, save the virtual address of CPU notes buffer instead of physical
address as virtual address is used often.

Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/156821318971.5656.9281936950510635858.stgit@hbathini.in.ibm.com

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Hari Bathini 2019-09-11 20:16:36 +05:30 • committed by Michael Ellerman

parent ca986d7fa7

commit 961cf26a98

2 changed files with 67 additions and 62 deletions

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arch/powerpc/include/asm/fadump-internal.h

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127

arch/powerpc/kernel/fadump.c

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