There is not need to restore r10, r11 and cr registers at this end of ITLBmiss handler as they are saved again to the same place in ITLBError handler we are jumping to.
Signed-off-by: Christophe Leroy <[email protected]> --- arch/powerpc/kernel/head_8xx.S | 8 +++++--- 1 files changed, 5 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index 99438d8..102fe9f 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -380,8 +380,7 @@ InstructionTLBMiss: lwz r3, 8(r0) #endif mfspr r10, SPRN_SPRG_SCRATCH2 - EXCEPTION_EPILOG_0 - b InstructionTLBError + b InstructionTLBError1 . = 0x1200 DataStoreTLBMiss: @@ -470,7 +469,10 @@ DataStoreTLBMiss: */ . = 0x1300 InstructionTLBError: - EXCEPTION_PROLOG + EXCEPTION_PROLOG_0 +InstructionTLBError1: + EXCEPTION_PROLOG_1 + EXCEPTION_PROLOG_2 mr r4,r12 mr r5,r9 EXC_XFER_LITE(0x1300, handle_page_fault) -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
