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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-03-12 13:50:36 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-03-29 04:22:08 +0200 |
| commit | e72915560b15f58c2ffe08144d9a7163daa18db4 (patch) | |
| tree | 1de6b15d58eb972d5aa3ac8e4920eef4ca40d5b1 /arch/powerpc/kernel/head_32.h | |
| parent | powerpc/32: Don't save thread.regs on interrupt entry (diff) | |
| download | linux-e72915560b15f58c2ffe08144d9a7163daa18db4.tar.xz linux-e72915560b15f58c2ffe08144d9a7163daa18db4.zip | |
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_32.h')
| -rw-r--r-- | arch/powerpc/kernel/head_32.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/head_32.h b/arch/powerpc/kernel/head_32.h index 087445e45489..4d638d760a96 100644 --- a/arch/powerpc/kernel/head_32.h +++ b/arch/powerpc/kernel/head_32.h @@ -183,7 +183,6 @@ label: #define EXCEPTION(n, label, hdlr, xfer) \ START_EXCEPTION(n, label) \ EXCEPTION_PROLOG label; \ - addi r3,r1,STACK_FRAME_OVERHEAD; \ xfer(n, hdlr) #define EXC_XFER_TEMPLATE(hdlr, trap, msr, tfer, ret) \ @@ -215,7 +214,6 @@ vmap_stack_overflow: lwz r1, emergency_ctx@l(r1) addi r1, r1, THREAD_SIZE - INT_FRAME_SIZE EXCEPTION_PROLOG_2 vmap_stack_overflow - addi r3, r1, STACK_FRAME_OVERHEAD EXC_XFER_STD(0, stack_overflow_exception) .endm |