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powerpc: add and use unknown_async_exception

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This is currently the same as unknown_exception, but it will diverge
after interrupt wrappers are added and code moved out of asm into the
wrappers (e.g., async handlers will check FINISH_NAP).

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210130130852.2952424-22-npiggin@gmail.com
This commit is contained in:
Nicholas Piggin
2021-01-30 23:08:31 +10:00
committed by Michael Ellerman
parent 0440b8a22c
commit 6c6aee009e
4 changed files with 18 additions and 5 deletions
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12
arch/powerpc/kernel/traps.c
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@@ -1073,6 +1073,18 @@ void unknown_exception(struct pt_regs *regs)
exception_exit(prev_state);
}
void unknown_async_exception(struct pt_regs *regs)
{
enum ctx_state prev_state = exception_enter();
printk("Bad trap at PC: %lx, SR: %lx, vector=%lx\n",
regs->nip, regs->msr, regs->trap);
_exception(SIGTRAP, regs, TRAP_UNK, 0);
exception_exit(prev_state);
}
void instruction_breakpoint_exception(struct pt_regs *regs)
{
enum ctx_state prev_state = exception_enter();