mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-08-21 08:19:28 +00:00
Code Issues Releases Wiki Activity

ns9xxx: Use get_irqnr_preamble to initialize base register

Browse source 
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>
This commit is contained in:
Uwe Kleine-König 2007-10-16 08:03:00 +02:00
parent c1a9e91e42
commit ab65b87093
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
include/asm-arm/arch-ns9xxx/entry-macro.S
View file

@ -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]