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
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
/*
* include/asm-arm/arch-pxa/entry-macro.S
*
* Low-level IRQ helper macros for PXA-based platforms
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <asm/hardware.h>
#include <asm/arch/irqs.h>
.macro disable_fiq
.endm
.macro get_irqnr_preamble, base, tmp
.endm
.macro arch_ret_to_user, tmp1, tmp2
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
mrc p15, 0, \tmp, c0, c0, 0 @ CPUID
mov \tmp, \tmp, lsr #13
and \tmp, \tmp, #0x7 @ Core G
cmp \tmp, #1
bhi 1004f
mov \base, #io_p2v(0x40000000) @ IIR Ctl = 0x40d00000
add \base, \base, #0x00d00000
ldr \irqstat, [\base, #0] @ ICIP
ldr \irqnr, [\base, #4] @ ICMR
b 1002f
1004:
mrc p6, 0, \irqstat, c6, c0, 0 @ ICIP2
mrc p6, 0, \irqnr, c7, c0, 0 @ ICMR2
ands \irqnr, \irqstat, \irqnr
beq 1003f
rsb \irqstat, \irqnr, #0
and \irqstat, \irqstat, \irqnr
clz \irqnr, \irqstat
rsb \irqnr, \irqnr, #31
add \irqnr, \irqnr, #32
b 1001f
1003:
mrc p6, 0, \irqstat, c0, c0, 0 @ ICIP
mrc p6, 0, \irqnr, c1, c0, 0 @ ICMR
1002:
ands \irqnr, \irqstat, \irqnr
beq 1001f
rsb \irqstat, \irqnr, #0
and \irqstat, \irqstat, \irqnr
clz \irqnr, \irqstat
rsb \irqnr, \irqnr, #31
1001:
.endm
|
