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| author | Nicholas Piggin <npiggin@gmail.com> | 2021-01-30 14:08:16 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-02-08 14:02:08 +0100 |
| commit | a01a3f2ddbcda83e8572787c0ec1dcbeba86915a (patch) | |
| tree | 497891fcc997665e9e4d57cc6cf8fdf19c5bf72a /arch/powerpc/kernel/head_booke.h | |
| parent | powerpc/64s: move the hash fault handling logic to C (diff) | |
| download | linux-a01a3f2ddbcda83e8572787c0ec1dcbeba86915a.tar.xz linux-a01a3f2ddbcda83e8572787c0ec1dcbeba86915a.zip | |
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_booke.h')
| -rw-r--r-- | arch/powerpc/kernel/head_booke.h | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/head_booke.h b/arch/powerpc/kernel/head_booke.h index 74e230c200fb..0fbdacc7fab7 100644 --- a/arch/powerpc/kernel/head_booke.h +++ b/arch/powerpc/kernel/head_booke.h @@ -476,9 +476,7 @@ label: NORMAL_EXCEPTION_PROLOG(INST_STORAGE); \ mfspr r5,SPRN_ESR; /* Grab the ESR and save it */ \ stw r5,_ESR(r11); \ - mr r4,r12; /* Pass SRR0 as arg2 */ \ - stw r4, _DEAR(r11); \ - li r5,0; /* Pass zero as arg3 */ \ + stw r12, _DEAR(r11); /* Pass SRR0 as arg2 */ \ EXC_XFER_LITE(0x0400, handle_page_fault) #define ALIGNMENT_EXCEPTION \ |