diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2021-01-30 23:08:16 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-02-09 00:02:08 +1100 |
| commit | a01a3f2ddbcda83e8572787c0ec1dcbeba86915a (patch) | |
| tree | 497891fcc997665e9e4d57cc6cf8fdf19c5bf72a /arch/powerpc/kernel/head_8xx.S | |
| parent | a4922f5442e7e6ce85da304e224d940edec2f1fb (diff) | |
powerpc: remove arguments from fault handler functions
Make mm fault handlers all just take the pt_regs * argument and load
DAR/DSISR from that. Make those that return a value return long.
This is done to make the function signatures match other handlers, which
will help with a future patch to add wrappers. Explicit arguments could
be added for performance but that would require more wrapper macro
variants.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210130130852.2952424-7-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/kernel/head_8xx.S')
| -rw-r--r-- | arch/powerpc/kernel/head_8xx.S | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index 52702f3db6df..0b2c247cfdff 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -312,14 +312,14 @@ DataStoreTLBMiss: . = 0x1300 InstructionTLBError: EXCEPTION_PROLOG - mr r4,r12 andis. r5,r9,DSISR_SRR1_MATCH_32S@h /* Filter relevant SRR1 bits */ andis. r10,r9,SRR1_ISI_NOPT@h beq+ .Litlbie - tlbie r4 + tlbie r12 /* 0x400 is InstructionAccess exception, needed by bad_page_fault() */ .Litlbie: - stw r4, _DAR(r11) + stw r12, _DAR(r11) + stw r5, _DSISR(r11) EXC_XFER_LITE(0x400, handle_page_fault) /* This is the data TLB error on the MPC8xx. This could be due to |