diff options
Diffstat (limited to 'arch/mips/ite-boards/generic/int-handler.S')
-rw-r--r-- | arch/mips/ite-boards/generic/int-handler.S | 63 |
1 files changed, 0 insertions, 63 deletions
diff --git a/arch/mips/ite-boards/generic/int-handler.S b/arch/mips/ite-boards/generic/int-handler.S deleted file mode 100644 index d190d8add9cb..000000000000 --- a/arch/mips/ite-boards/generic/int-handler.S +++ /dev/null | |||
@@ -1,63 +0,0 @@ | |||
1 | #include <asm/asm.h> | ||
2 | #include <asm/mipsregs.h> | ||
3 | #include <asm/regdef.h> | ||
4 | #include <asm/stackframe.h> | ||
5 | |||
6 | .text | ||
7 | .set macro | ||
8 | .set noat | ||
9 | .align 5 | ||
10 | |||
11 | NESTED(it8172_IRQ, PT_SIZE, sp) | ||
12 | SAVE_ALL | ||
13 | CLI # Important: mark KERNEL mode ! | ||
14 | |||
15 | /* We're working with 'reorder' set at this point. */ | ||
16 | /* | ||
17 | * Get pending interrupts | ||
18 | */ | ||
19 | |||
20 | mfc0 t0,CP0_CAUSE # get pending interrupts | ||
21 | mfc0 t1,CP0_STATUS # get enabled interrupts | ||
22 | and t0,t1 # isolate allowed ones | ||
23 | |||
24 | andi t0,0xff00 # isolate pending bits | ||
25 | beqz t0, 3f # spurious interrupt | ||
26 | |||
27 | andi a0, t0, CAUSEF_IP7 | ||
28 | beq a0, zero, 1f | ||
29 | |||
30 | li a0, 127 # MIPS_CPU_TIMER_IRQ = (NR_IRQS-1) | ||
31 | move a1, sp | ||
32 | jal ll_timer_interrupt | ||
33 | j ret_from_irq | ||
34 | nop | ||
35 | |||
36 | 1: | ||
37 | andi a0, t0, CAUSEF_IP2 # the only int we expect at this time | ||
38 | beq a0, zero, 3f | ||
39 | move a0,sp | ||
40 | jal it8172_hw0_irqdispatch | ||
41 | |||
42 | mfc0 t0,CP0_STATUS # disable interrupts | ||
43 | ori t0,1 | ||
44 | xori t0,1 | ||
45 | mtc0 t0,CP0_STATUS | ||
46 | nop | ||
47 | nop | ||
48 | nop | ||
49 | |||
50 | la a1, ret_from_irq | ||
51 | jr a1 | ||
52 | nop | ||
53 | |||
54 | 3: | ||
55 | move a0, sp | ||
56 | jal mips_spurious_interrupt | ||
57 | nop | ||
58 | la a1, ret_from_irq | ||
59 | jr a1 | ||
60 | nop | ||
61 | |||
62 | END(it8172_IRQ) | ||
63 | |||