Commit e6c1203d authored Aug 12, 2017 by Nicholas Piggin Committed by Michael Ellerman Aug 23, 2017

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>

parent d6f73fc6

arch/powerpc/kernel/exceptions-64s.S

+4 −0

Original line number	Diff line number	Diff line
		@@ -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