Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=156864f806baa4e1aa6eabd28ac45ecc92b31315
Commit: 156864f806baa4e1aa6eabd28ac45ecc92b31315
Parent: 9ebbec27da6d7f4762b73985ac4929acf061d48b
Author: Marc Pignat <[EMAIL PROTECTED]>
AuthorDate: Mon Dec 3 12:58:24 2007 +0100
Committer: Russell King <[EMAIL PROTECTED]>
CommitDate: Sat Jan 26 15:00:30 2008 +0000
[ARM] 4688/1: at91: speed-up irq processing
Save N instructions on every interrupt processing (where N is the
number of interrupts processed in any one IRQ exception).
Signed-off-by: Marc Pignat <[EMAIL PROTECTED]>
Acked-by: Andrew Victor <[EMAIL PROTECTED]>
Signed-off-by: Russell King <[EMAIL PROTECTED]>
---
include/asm-arm/arch-at91/entry-macro.S | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/include/asm-arm/arch-at91/entry-macro.S
b/include/asm-arm/arch-at91/entry-macro.S
index cc1d850..1005eee 100644
--- a/include/asm-arm/arch-at91/entry-macro.S
+++ b/include/asm-arm/arch-at91/entry-macro.S
@@ -17,13 +17,13 @@
.endm
.macro get_irqnr_preamble, base, tmp
+ ldr \base, =(AT91_VA_BASE_SYS + AT91_AIC) @ base virtual
address of AIC peripheral
.endm
.macro arch_ret_to_user, tmp1, tmp2
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
- ldr \base, =(AT91_VA_BASE_SYS + AT91_AIC) @ base virtual
address of AIC peripheral
ldr \irqnr, [\base, #(AT91_AIC_IVR - AT91_AIC)] @ read IRQ
vector register: de-asserts nIRQ to processor (and clears interrupt)
ldr \irqstat, [\base, #(AT91_AIC_ISR - AT91_AIC)] @ read
interrupt source number
teq \irqstat, #0 @ ISR is 0 when
no current interrupt, or spurious interrupt
-
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