diff options
| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-03-12 12:50:36 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-03-29 13:22:08 +1100 |
| commit | e72915560b15f58c2ffe08144d9a7163daa18db4 (patch) | |
| tree | 1de6b15d58eb972d5aa3ac8e4920eef4ca40d5b1 /arch/powerpc/kernel/head_8xx.S | |
| parent | db297c3b07af7856fb7c666fbc9792d8e37556be (diff) | |
powerpc/32: Set regs parameter in r3 in transfer_to_handler
All exception handlers take regs as first parameter.
Instead of setting r3 just before each call to a handler, set
it in transfer_to_handler.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/f994a379bb895a2cbd518cb82460ad3f3d3ccdf5.1615552867.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/kernel/head_8xx.S')
| -rw-r--r-- | arch/powerpc/kernel/head_8xx.S | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index 932702a38234..eb1d40a8f2c4 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -123,7 +123,6 @@ instruction_counter: /* Machine check */ START_EXCEPTION(0x200, MachineCheck) EXCEPTION_PROLOG MachineCheck handle_dar_dsisr=1 - addi r3,r1,STACK_FRAME_OVERHEAD EXC_XFER_STD(0x200, machine_check_exception) /* External interrupt */ @@ -132,7 +131,6 @@ instruction_counter: /* Alignment exception */ START_EXCEPTION(0x600, Alignment) EXCEPTION_PROLOG Alignment handle_dar_dsisr=1 - addi r3,r1,STACK_FRAME_OVERHEAD EXC_XFER_STD(0x600, alignment_exception) /* Program check exception */ @@ -348,7 +346,6 @@ DARFixed:/* Return from dcbx instruction bug workaround */ 1: EXCEPTION_PROLOG_1 EXCEPTION_PROLOG_2 DataBreakpoint handle_dar_dsisr=1 - addi r3,r1,STACK_FRAME_OVERHEAD mfspr r4,SPRN_BAR stw r4,_DAR(r11) EXC_XFER_STD(0x1c00, do_break) |