From 80bd9177def1ab92637e8cd27c2534b1224b12b5 Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Sat, 22 Jun 2019 23:15:23 +1000 Subject: [PATCH] powerpc/64s/exception: improve 0x500 handler code After the previous cleanup, it becomes possible to consolidate some common code outside the runtime alternate patching. Also remove unused labels. This results in some code change, but unchanged runtime instruction sequence. Signed-off-by: Nicholas Piggin Signed-off-by: Michael Ellerman --- arch/powerpc/kernel/exceptions-64s.S | 16 ++++------------ 1 file changed, 4 insertions(+), 12 deletions(-) diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index 2774046e6cf4..6bf77070b1ba 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -746,32 +746,24 @@ ALT_MMU_FTR_SECTION_END_IFCLR(MMU_FTR_TYPE_RADIX) EXC_REAL_BEGIN(hardware_interrupt, 0x500, 0x100) - .globl hardware_interrupt_hv -hardware_interrupt_hv: + SET_SCRATCH0(r13) /* save r13 */ + EXCEPTION_PROLOG_0 PACA_EXGEN BEGIN_FTR_SECTION - SET_SCRATCH0(r13) /* save r13 */ - EXCEPTION_PROLOG_0 PACA_EXGEN EXCEPTION_PROLOG_1 EXC_HV, PACA_EXGEN, 1, 0x500, IRQS_DISABLED EXCEPTION_PROLOG_2_REAL hardware_interrupt_common, EXC_HV, 1 FTR_SECTION_ELSE - SET_SCRATCH0(r13) /* save r13 */ - EXCEPTION_PROLOG_0 PACA_EXGEN EXCEPTION_PROLOG_1 EXC_STD, PACA_EXGEN, 1, 0x500, IRQS_DISABLED EXCEPTION_PROLOG_2_REAL hardware_interrupt_common, EXC_STD, 1 ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_206) EXC_REAL_END(hardware_interrupt, 0x500, 0x100) EXC_VIRT_BEGIN(hardware_interrupt, 0x4500, 0x100) - .globl hardware_interrupt_relon_hv -hardware_interrupt_relon_hv: + SET_SCRATCH0(r13) /* save r13 */ + EXCEPTION_PROLOG_0 PACA_EXGEN BEGIN_FTR_SECTION - SET_SCRATCH0(r13) /* save r13 */ - EXCEPTION_PROLOG_0 PACA_EXGEN EXCEPTION_PROLOG_1 EXC_HV, PACA_EXGEN, 1, 0x500, IRQS_DISABLED EXCEPTION_PROLOG_2_VIRT hardware_interrupt_common, EXC_HV FTR_SECTION_ELSE - SET_SCRATCH0(r13) /* save r13 */ - EXCEPTION_PROLOG_0 PACA_EXGEN EXCEPTION_PROLOG_1 EXC_STD, PACA_EXGEN, 1, 0x500, IRQS_DISABLED EXCEPTION_PROLOG_2_VIRT hardware_interrupt_common, EXC_STD ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE) -- 2.25.1