From e6c1203d5ce9b3bd36a7951bc7f075b8db4ba971 Mon Sep 17 00:00:00 2001 From: Nicholas Piggin Date: Sat, 12 Aug 2017 02:39:04 +1000 Subject: [PATCH] powerpc/64s: Use the HV handler for external IRQ replay in HV mode on POWER9 POWER9 host external interrupts use the h_virt_irq_common handler, so use that to replay them rather than using the hardware_interrupt_common handler. Both call do_IRQ, but using the correct handler reduces i-cache footprint. Signed-off-by: Nicholas Piggin Signed-off-by: Michael Ellerman --- arch/powerpc/kernel/exceptions-64s.S | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index ab1dc98..7209863 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -1674,7 +1674,11 @@ _GLOBAL(__replay_interrupt) cmpwi r3,0x900 beq decrementer_common cmpwi r3,0x500 +BEGIN_FTR_SECTION + beq h_virt_irq_common +FTR_SECTION_ELSE beq hardware_interrupt_common +ALT_FTR_SECTION_END_IFSET(CPU_FTR_HVMODE | CPU_FTR_ARCH_300) BEGIN_FTR_SECTION cmpwi r3,0xa00 beq h_doorbell_common_msgclr -- 2.7.4