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| author |   Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-03-12 12:50:37 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2021-03-29 13:22:08 +1100 |
| commit | af6f2ce84b2f666762f75f085a7e5d6514743a84 (patch) | |
| tree | d0203bfc92663c83c7ce72f4ab52dac80196c48c /arch/powerpc/kernel/entry_32.S | |
| parent | powerpc/32: Set regs parameter in r3 in transfer_to_handler (diff) | |
| download | linux-dev-af6f2ce84b2f666762f75f085a7e5d6514743a84.tar.xz linux-dev-af6f2ce84b2f666762f75f085a7e5d6514743a84.zip | |
powerpc/32: Call bad_page_fault() from do_page_fault()
Now that non volatile registers are saved at all time, no
need to split bad_page_fault() out of do_page_fault().
Remove handle_page_fault() and use do_page_fault() directly.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/cfb95be8863204cc2bf45a22ea44dd1d0dc16b7f.1615552867.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/kernel/entry_32.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_32.S | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index e538ae73394d..76e1502b3e6f 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -221,22 +221,6 @@ ret_from_kernel_thread: b ret_from_syscall /* - * Top-level page fault handling. - * This is in assembler because if do_page_fault tells us that - * it is a bad kernel page fault, we want to save the non-volatile - * registers before calling bad_page_fault. - */ - .globl handle_page_fault -handle_page_fault: - bl do_page_fault - cmpwi r3,0 - beq+ ret_from_except - mr r4,r3 /* err arg for bad_page_fault */ - addi r3,r1,STACK_FRAME_OVERHEAD - bl __bad_page_fault - b ret_from_except_full - -/* * This routine switches between two different tasks. The process * state of one is saved on its kernel stack. Then the state * of the other is restored from its kernel stack. The memory |