[PATCH] ARM: mach-shmobile: optimize get_irqnr_preamble/and_base macros
Magnus Damm
magnus.damm at gmail.com
Mon Feb 8 05:53:13 EST 2010
From: Magnus Damm <damm at opensource.se>
Optimize the SH-Mobile interrupt assembly macros to avoid
reloading the INTFLGA register address in case of multiple
pending interrupts. Kindly pointed out by Russell King.
Signed-off-by: Magnus Damm <damm at opensource.se>
---
arch/arm/mach-shmobile/include/mach/entry-macro.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- 0002/arch/arm/mach-shmobile/include/mach/entry-macro.S
+++ work/arch/arm/mach-shmobile/include/mach/entry-macro.S 2010-02-08 14:47:31.000000000 +0900
@@ -21,13 +21,13 @@
.endm
.macro get_irqnr_preamble, base, tmp
+ ldr \base, =INTFLGA
.endm
.macro arch_ret_to_user, tmp1, tmp2
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
- ldr \base, =INTFLGA
ldr \irqnr, [\base]
cmp \irqnr, #0
beq 1000f
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