1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
#include <asm/assembler.h>
/*
* Interrupt handling. Preserves r7, r8, r9
*/
.macro arch_irq_handler_default
get_irqnr_preamble r6, lr
1: get_irqnr_and_base r0, r2, r6, lr
movne r1, sp
@
@ routine called with r0 = irq number, r1 = struct pt_regs *
@
adrne lr, BSYM(1b)
bne asm_do_IRQ
#ifdef CONFIG_SMP
/*
* XXX
*
* this macro assumes that irqstat (r2) and base (r6) are
* preserved from get_irqnr_and_base above
*/
ALT_SMP(test_for_ipi r0, r2, r6, lr)
ALT_UP_B(9997f)
movne r1, sp
adrne lr, BSYM(1b)
bne do_IPI
#endif
9997:
.endm
.macro arch_irq_handler, symbol_name
.align 5
.global \symbol_name
\symbol_name:
mov r8, lr
arch_irq_handler_default
ret r8
.endm
|
