powerpc/watchpoint: Convert thread_struct->hw_brk to an array

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So far powerpc hw supported only one watchpoint. But Power10 is
introducing 2nd DAWR. Convert thread_struct->hw_brk into an array.

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Michael Neuling <mikey@neuling.org>
Link: https://lore.kernel.org/r/20200514111741.97993-10-ravi.bangoria@linux.ibm.com

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Ravi Bangoria 2020-05-14 16:47:34 +05:30 • committed by Michael Ellerman

parent 22a214e461

commit 303e6a9ddc

5 changed files with 78 additions and 41 deletions

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2

arch/powerpc/include/asm/processor.h

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60

arch/powerpc/kernel/process.c

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40

arch/powerpc/kernel/ptrace/ptrace-noadv.c

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4

arch/powerpc/kernel/ptrace/ptrace32.c

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13

arch/powerpc/kernel/signal.c

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