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_book3s_32.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_book3s_32.S')
| -rw-r--r-- | arch/powerpc/kernel/head_book3s_32.S | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/head_book3s_32.S b/arch/powerpc/kernel/head_book3s_32.S index 0c4fcb6e1a35..61f862fa9655 100644 --- a/arch/powerpc/kernel/head_book3s_32.S +++ b/arch/powerpc/kernel/head_book3s_32.S @@ -362,9 +362,9 @@ BEGIN_MMU_FTR_SECTION END_MMU_FTR_SECTION_IFSET(MMU_FTR_HPTE_TABLE) #endif #endif /* CONFIG_VMAP_STACK */ -1: mr r4,r12 andis. r5,r9,DSISR_SRR1_MATCH_32S@h /* Filter relevant SRR1 bits */ - stw r4, _DAR(r11) + stw r5, _DSISR(r11) + stw r12, _DAR(r11) EXC_XFER_LITE(0x400, handle_page_fault) /* External interrupt */ @@ -686,7 +686,6 @@ handle_page_fault_tramp_1: #ifdef CONFIG_VMAP_STACK EXCEPTION_PROLOG_2 handle_dar_dsisr=1 #endif - lwz r4, _DAR(r11) lwz r5, _DSISR(r11) /* fall through */ handle_page_fault_tramp_2: |