powerpc/spufs: add sizes for context files
[linux-2.6] / include / asm-arm / arch-versatile / entry-macro.S
1 /*
2  * include/asm-arm/arch-versatile/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 <asm/hardware.h>
11 #include <asm/hardware/vic.h>
12
13                 .macro  disable_fiq
14                 .endm
15
16                 .macro  get_irqnr_preamble, base, tmp
17                 ldr     \base, =IO_ADDRESS(VERSATILE_VIC_BASE)
18                 .endm
19
20                 .macro  arch_ret_to_user, tmp1, tmp2
21                 .endm
22
23                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
24                 ldr     \irqstat, [\base, #VIC_IRQ_STATUS]      @ get masked status
25                 mov     \irqnr, #0
26                 teq     \irqstat, #0
27                 beq     1003f
28
29 1001:           tst     \irqstat, #15
30                 bne     1002f
31                 add     \irqnr, \irqnr, #4
32                 movs    \irqstat, \irqstat, lsr #4
33                 bne     1001b
34 1002:           tst     \irqstat, #1
35                 bne     1003f
36                 add     \irqnr, \irqnr, #1
37                 movs    \irqstat, \irqstat, lsr #1
38                 bne     1002b
39 1003:           /* EQ will be set if no irqs pending */
40
41 @               clz     \irqnr, \irqstat
42 @1003:          /* EQ will be set if we reach MAXIRQNUM */
43                 .endm
44