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ARM: mach-shmobile: optimize get_irqnr_preamble/and_base macros

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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@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm 2010-02-08 10:53:13 +00:00 committed by Paul Mundt
parent 34bf0fc54a
commit 62f60d6a37
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mach-shmobile/include/mach/entry-macro.S
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@ -21,13 +21,13 @@
.endm .endm
.macro get_irqnr_preamble, base, tmp .macro get_irqnr_preamble, base, tmp
ldr \base, =INTFLGA
.endm .endm
.macro arch_ret_to_user, tmp1, tmp2 .macro arch_ret_to_user, tmp1, tmp2
.endm .endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
ldr \base, =INTFLGA
ldr \irqnr, [\base] ldr \irqnr, [\base]
cmp \irqnr, #0 cmp \irqnr, #0
beq 1000f beq 1000f