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| author |   Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-01-30 23:08:13 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2021-02-09 00:02:08 +1100 |
| commit | 7a24ae2e172f770df07f8e48ed3ed2f3a6b17e37 (patch) | |
| tree | 96584b167d91c87a5c0e2ba5e8ffb38729a16f8a /arch/powerpc/kernel/entry_32.S | |
| parent | KVM: PPC: Book3S HV: Context tracking exit guest context before enabling irqs (diff) | |
| download | linux-dev-7a24ae2e172f770df07f8e48ed3ed2f3a6b17e37.tar.xz linux-dev-7a24ae2e172f770df07f8e48ed3ed2f3a6b17e37.zip | |
powerpc/32s: move DABR match out of handle_page_fault
handle_page_fault() has some code dedicated to book3s/32 to
call do_break() when the DSI is a DABR match.
On other platforms, do_break() is handled separately.
Do the same for book3s/32, do it earlier in the process of DSI.
This change also avoid doing the test on ISI.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210130130852.2952424-4-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/kernel/entry_32.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_32.S | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index 1c9b0ccc2172..238eacfda7b0 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -670,10 +670,6 @@ ppc_swapcontext: .globl handle_page_fault handle_page_fault: addi r3,r1,STACK_FRAME_OVERHEAD -#ifdef CONFIG_PPC_BOOK3S_32 - andis. r0,r5,DSISR_DABRMATCH@h - bne- handle_dabr_fault -#endif bl do_page_fault cmpwi r3,0 beq+ ret_from_except @@ -687,17 +683,6 @@ handle_page_fault: bl __bad_page_fault b ret_from_except_full -#ifdef CONFIG_PPC_BOOK3S_32 - /* We have a data breakpoint exception - handle it */ -handle_dabr_fault: - SAVE_NVGPRS(r1) - lwz r0,_TRAP(r1) - clrrwi r0,r0,1 - stw r0,_TRAP(r1) - bl do_break - b ret_from_except_full -#endif - /* * This routine switches between two different tasks. The process * state of one is saved on its kernel stack. Then the state |