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794d15b2 | 1 | /* |
a09e64fb | 2 | * arch/arm/mach-mv78xx0/include/mach/entry-macro.S |
794d15b2 SS |
3 | * |
4 | * Low-level IRQ helper macros for Marvell MV78xx0 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 | ||
fdd8b079 | 11 | #include <mach/bridge-regs.h> |
794d15b2 SS |
12 | |
13 | .macro disable_fiq | |
14 | .endm | |
15 | ||
16 | .macro arch_ret_to_user, tmp1, tmp2 | |
17 | .endm | |
18 | ||
19 | .macro get_irqnr_preamble, base, tmp | |
20 | ldr \base, =IRQ_VIRT_BASE | |
21 | .endm | |
22 | ||
23 | .macro get_irqnr_and_base, irqnr, irqstat, base, tmp | |
24 | @ check low interrupts | |
25 | ldr \irqstat, [\base, #IRQ_CAUSE_LOW_OFF] | |
26 | ldr \tmp, [\base, #IRQ_MASK_LOW_OFF] | |
27 | mov \irqnr, #31 | |
28 | ands \irqstat, \irqstat, \tmp | |
1f8081f5 | 29 | bne 1001f |
794d15b2 SS |
30 | |
31 | @ if no low interrupts set, check high interrupts | |
1f8081f5 LB |
32 | ldr \irqstat, [\base, #IRQ_CAUSE_HIGH_OFF] |
33 | ldr \tmp, [\base, #IRQ_MASK_HIGH_OFF] | |
34 | mov \irqnr, #63 | |
35 | ands \irqstat, \irqstat, \tmp | |
36 | bne 1001f | |
37 | ||
38 | @ if no high interrupts set, check error interrupts | |
39 | ldr \irqstat, [\base, #IRQ_CAUSE_ERR_OFF] | |
40 | ldr \tmp, [\base, #IRQ_MASK_ERR_OFF] | |
41 | mov \irqnr, #95 | |
42 | ands \irqstat, \irqstat, \tmp | |
794d15b2 SS |
43 | |
44 | @ find first active interrupt source | |
1f8081f5 | 45 | 1001: clzne \irqstat, \irqstat |
794d15b2 SS |
46 | subne \irqnr, \irqnr, \irqstat |
47 | .endm |