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/entry_32.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/entry_32.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_32.S | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index 1e201fc4a590..e538ae73394d 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -87,6 +87,7 @@ _ASM_NOKPROBE_SYMBOL(transfer_to_handler_full) .globl transfer_to_handler transfer_to_handler: SAVE_NVGPRS(r11) + addi r3,r1,STACK_FRAME_OVERHEAD stw r2,GPR2(r11) stw r12,_NIP(r11) stw r9,_MSR(r11) @@ -227,7 +228,6 @@ ret_from_kernel_thread: */ .globl handle_page_fault handle_page_fault: - addi r3,r1,STACK_FRAME_OVERHEAD bl do_page_fault cmpwi r3,0 beq+ ret_from_except @@ -365,7 +365,6 @@ _ASM_NOKPROBE_SYMBOL(fast_exception_return) 3: li r10,-1 stw r10,_TRAP(r11) - addi r3,r1,STACK_FRAME_OVERHEAD bl transfer_to_handler_full bl unrecoverable_exception trap /* should not get here */ |