Nicholas Piggin 4c2de74cc8 powerpc/64: Interrupts save PPR on stack rather than thread_struct ... PPR is the odd register out when it comes to interrupt handling, it is saved in current->thread.ppr while all others are saved on the stack. The difficulty with this is that accessing thread.ppr can cause a SLB fault, but the SLB fault handler implementation in C change had assumed the normal exception entry handlers would not cause an SLB fault. Fix this by allocating room in the interrupt stack to save PPR. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2018-10-14 18:04:09 +11:00
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asm	powerpc/64: Interrupts save PPR on stack rather than thread_struct	2018-10-14 18:04:09 +11:00
uapi/asm	powerpc: Split user/kernel definitions of struct pt_regs	2018-10-14 18:04:09 +11:00