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>
#include <asm/arch-ns9xxx/regs-sys.h>
.macro get_irqnr_preamble, base, tmp
#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
.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]
ldr \irqstat, [\base, #(SYS_ISA - SYS_ISRADDR)]
cmp \irqstat, #0
ldrne \irqnr, [\base]