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| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2021-03-12 15:50:31 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-03-29 05:22:07 +0300 |
| commit | 32d2ca0e969a3620f71dff166a95ebf3f735b72e (patch) | |
| tree | 197a0b0f04ceb7e373f847bbde5548b0b84f924d /arch/powerpc/kernel/entry_32.S | |
| parent | 8f844c06f460687b028c675c3fa68f8e735aeb8c (diff) | |
| download | linux-32d2ca0e969a3620f71dff166a95ebf3f735b72e.tar.xz | |
powerpc/32: Refactor booke critical registers saving
Refactor booke critical registers saving into a few macros
and move it into the exception prolog directly.
Keep the dedicated transfert_to_handler entry point for the
moment allthough they are empty. They will be removed in a
later patch to reduce churn.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/269171496f1f5f22afa621695bded22976c9d48d.1615552867.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/kernel/entry_32.S')
| -rw-r--r-- | arch/powerpc/kernel/entry_32.S | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S index 01a064c8a96a..ad1fd33e1126 100644 --- a/arch/powerpc/kernel/entry_32.S +++ b/arch/powerpc/kernel/entry_32.S @@ -51,49 +51,16 @@ #ifdef CONFIG_BOOKE .globl mcheck_transfer_to_handler mcheck_transfer_to_handler: - mfspr r0,SPRN_DSRR0 - stw r0,_DSRR0(r11) - mfspr r0,SPRN_DSRR1 - stw r0,_DSRR1(r11) /* fall through */ _ASM_NOKPROBE_SYMBOL(mcheck_transfer_to_handler) .globl debug_transfer_to_handler debug_transfer_to_handler: - mfspr r0,SPRN_CSRR0 - stw r0,_CSRR0(r11) - mfspr r0,SPRN_CSRR1 - stw r0,_CSRR1(r11) /* fall through */ _ASM_NOKPROBE_SYMBOL(debug_transfer_to_handler) .globl crit_transfer_to_handler crit_transfer_to_handler: -#ifdef CONFIG_PPC_BOOK3E_MMU - mfspr r0,SPRN_MAS0 - stw r0,MAS0(r11) - mfspr r0,SPRN_MAS1 - stw r0,MAS1(r11) - mfspr r0,SPRN_MAS2 - stw r0,MAS2(r11) - mfspr r0,SPRN_MAS3 - stw r0,MAS3(r11) - mfspr r0,SPRN_MAS6 - stw r0,MAS6(r11) -#ifdef CONFIG_PHYS_64BIT - mfspr r0,SPRN_MAS7 - stw r0,MAS7(r11) -#endif /* CONFIG_PHYS_64BIT */ -#endif /* CONFIG_PPC_BOOK3E_MMU */ -#ifdef CONFIG_44x - mfspr r0,SPRN_MMUCR - stw r0,MMUCR(r11) -#endif - mfspr r0,SPRN_SRR0 - stw r0,_SRR0(r11) - mfspr r0,SPRN_SRR1 - stw r0,_SRR1(r11) - /* fall through */ _ASM_NOKPROBE_SYMBOL(crit_transfer_to_handler) #endif |