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Commit ab65b870 authored Oct 16, 2007 by Uwe Kleine-König

ns9xxx: Use get_irqnr_preamble to initialize base register



This patch optimizes the irq handling a bit.  Now the base register is only
computed once if more than one irq is pending.

Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>

parent c1a9e91e

include/asm-arm/arch-ns9xxx/entry-macro.S

+1 −1

Original line number	Diff line number	Diff line
		@@ -12,13 +12,13 @@
		#include <asm/arch-ns9xxx/regs-sys.h>

		.macro get_irqnr_preamble, base, tmp
		ldr \base, =SYS_ISRADDR
		.endm

		.macro arch_ret_to_user, tmp1, tmp2
		.endm

		.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
		ldr \base, =SYS_ISRADDR
		ldr \irqstat, [\base, #(SYS_ISA - SYS_ISRADDR)]
		cmp \irqstat, #0
		ldrne \irqnr, [\base]