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authorLennert Buytenhek <buytenh@wantstofly.org>2006-09-18 23:24:10 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-09-25 10:25:49 +0100
commit7412b10f7967ef4210ed6f793004d23642dc5140 (patch)
treef82586f106e50c16b84878cee8e9265dfd9db5e5 /include/asm-arm/arch-iop32x/entry-macro.S
parentd7d214e974b94e8332d1f6c16f6f19b661dfa855 (diff)
[ARM] 3829/1: iop3xx: optimise irq entry macros
Squeeze three instructions out of the iop32x irq demuxer, and nine out of the iop33x irq demuxer by using the hardware vector generator. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/arch-iop32x/entry-macro.S')
-rw-r--r--include/asm-arm/arch-iop32x/entry-macro.S10
1 files changed, 3 insertions, 7 deletions
diff --git a/include/asm-arm/arch-iop32x/entry-macro.S b/include/asm-arm/arch-iop32x/entry-macro.S
index c5ec1e23cbe..3497fef0b89 100644
--- a/include/asm-arm/arch-iop32x/entry-macro.S
+++ b/include/asm-arm/arch-iop32x/entry-macro.S
@@ -16,13 +16,9 @@
* Note: only deal with normal interrupts, not FIQ
*/
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
- mov \irqnr, #0
ldr \base, =IOP3XX_REG_ADDR(0x07D8)
ldr \irqstat, [\base] @ Read IINTSRC
- cmp \irqstat, #0
- beq 1001f
- clz \irqnr, \irqstat
- mov \base, #31
- subs \irqnr,\base,\irqnr
-1001:
+ cmp \irqstat, #0
+ clzne \irqnr, \irqstat
+ rsbne \irqnr, \irqnr, #31
.endm