powerpc/32: Handle bookE debugging in C in syscall entry/exit

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The handling of SPRN_DBCR0 and other registers can easily
be done in C instead of ASM.

For that, create booke_load_dbcr0() and booke_restore_dbcr0().

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1a7515f9258b27a9177de88491a8bb79b255ceb7.1612898425.git.christophe.leroy@csgroup.eu

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Christophe Leroy 2021-02-09 19:29:28 +00:00 • committed by Michael Ellerman

parent b966f22790

commit d524dda719

6 changed files with 42 additions and 55 deletions

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12

arch/powerpc/include/asm/interrupt.h

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3

arch/powerpc/include/asm/reg_booke.h

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7

arch/powerpc/kernel/entry_32.S

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15

arch/powerpc/kernel/head_32.h

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19

arch/powerpc/kernel/head_booke.h

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41

arch/powerpc/kernel/interrupt.c

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