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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 <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Nicholas Piggin 2017-08-12 02:39:04 +10:00 committed by Michael Ellerman
parent d6f73fc69b
commit e6c1203d5c
1 changed files with 4 additions and 0 deletions
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4
arch/powerpc/kernel/exceptions-64s.S
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@ -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