@@ -1447,12 +1447,6 @@ BEGIN_MMU_FTR_SECTION
MMU_FTR_SECTION_ELSE
bl do_page_fault
ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
- cmpdi r3,0
- beq+ interrupt_return
- mr r5,r3
- addi r3,r1,STACK_FRAME_OVERHEAD
- ld r4,_DAR(r1)
- bl __bad_page_fault
b interrupt_return
1: bl do_break
@@ -1557,12 +1551,6 @@ BEGIN_MMU_FTR_SECTION
MMU_FTR_SECTION_ELSE
bl do_page_fault
ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX)
- cmpdi r3,0
- beq+ interrupt_return
- mr r5,r3
- addi r3,r1,STACK_FRAME_OVERHEAD
- ld r4,_DAR(r1)
- bl __bad_page_fault
b interrupt_return
GEN_KVM instruction_access
@@ -556,6 +556,10 @@ long do_page_fault(struct pt_regs *regs)
if (likely(entry)) {
instruction_pointer_set(regs, extable_fixup(entry));
err = 0;
+ } else if (IS_ENABLED(CONFIG_PPC_BOOK3S_64)) {
+ /* 32 and 64e handle this in asm */
+ __bad_page_fault(regs, err);
+ err = 0;
}
}
This simplifies code, and it is also useful when introducing interrupt handler wrappers when introducing wrapper functionality that doesn't cope with asm entry code calling into more than one handler function. 32-bit and 64e still have some such cases, which limits some ways they can use interrupt wrappers. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> --- arch/powerpc/kernel/exceptions-64s.S | 12 ------------ arch/powerpc/mm/fault.c | 4 ++++ 2 files changed, 4 insertions(+), 12 deletions(-)