ARM: Fix Versatile&Integrator includes to behave in the same way as Realview
[linux-2.6.git] / arch / arm / mach-versatile / include / mach / entry-macro.S
1 /*
2  * arch/arm/mach-versatile/include/mach/entry-macro.S
3  *
4  * Low-level IRQ helper macros for Versatile platforms
5  *
6  * This file is licensed under  the terms of the GNU General Public
7  * License version 2. This program is licensed "as is" without any
8  * warranty of any kind, whether express or implied.
9  */
10 #include <mach/hardware.h>
11 #include <mach/platform.h>
12 #include <asm/hardware/vic.h>
13
14                 .macro  disable_fiq
15                 .endm
16
17                 .macro  get_irqnr_preamble, base, tmp
18                 ldr     \base, =IO_ADDRESS(VERSATILE_VIC_BASE)
19                 .endm
20
21                 .macro  arch_ret_to_user, tmp1, tmp2
22                 .endm
23
24                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
25                 ldr     \irqstat, [\base, #VIC_IRQ_STATUS]      @ get masked status
26                 mov     \irqnr, #0
27                 teq     \irqstat, #0
28                 beq     1003f
29
30 1001:           tst     \irqstat, #15
31                 bne     1002f
32                 add     \irqnr, \irqnr, #4
33                 movs    \irqstat, \irqstat, lsr #4
34                 bne     1001b
35 1002:           tst     \irqstat, #1
36                 bne     1003f
37                 add     \irqnr, \irqnr, #1
38                 movs    \irqstat, \irqstat, lsr #1
39                 bne     1002b
40 1003:           /* EQ will be set if no irqs pending */
41
42 @               clz     \irqnr, \irqstat
43 @1003:          /* EQ will be set if we reach MAXIRQNUM */
44                 .endm
45