* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
+#include <asm/hardware.h>
+
.macro disable_fiq
.endm
+
+ .macro get_irqnr_preamble, base, tmp
+ .endm
+
+ .macro arch_ret_to_user, tmp1, tmp2
+ .endm
+
#define AITC_NIVECSR 0x40
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
- ldr \irqstat, =IO_ADDRESS(IMX_AITC_BASE)
+ ldr \base, =IO_ADDRESS(IMX_AITC_BASE)
@ Load offset & priority of the highest priority
@ interrupt pending.
- ldr \irqnr, [\irqstat, #AITC_NIVECSR]
+ ldr \irqstat, [\base, #AITC_NIVECSR]
@ Shift off the priority leaving the offset or
- @ "interrupt number"
- mov \irqnr, \irqnr, lsr #16
- ldr \irqstat, =1 @ dummy compare
- ldr \base, =0xFFFF // invalid interrupt
- cmp \irqnr, \base
- bne 1001f
- ldr \irqstat, =0
-1001:
- tst \irqstat, #1 @ to make the condition code = TRUE
+ @ "interrupt number", use arithmetic shift to
+ @ transform illegal source (0xffff) as -1
+ mov \irqnr, \irqstat, asr #16
+ adds \tmp, \irqnr, #1
.endm
-