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585cf175 | 1 | /* |
a09e64fb | 2 | * arch/arm/mach-orion5x/include/mach/entry-macro.S |
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3 | * |
4 | * Low-level IRQ helper macros for Orion platforms | |
5 | * | |
7f74c2c7 LB |
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 | |
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8 | * warranty of any kind, whether express or implied. |
9 | */ | |
10 | ||
fdd8b079 | 11 | #include <mach/bridge-regs.h> |
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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, =MAIN_IRQ_CAUSE | |
21 | .endm | |
22 | ||
23 | .macro get_irqnr_and_base, irqnr, irqstat, base, tmp | |
24 | ldr \irqstat, [\base, #0] @ main cause | |
25 | ldr \tmp, [\base, #(MAIN_IRQ_MASK - MAIN_IRQ_CAUSE)] @ main mask | |
26 | mov \irqnr, #0 @ default irqnr | |
27 | @ find cause bits that are unmasked | |
28 | ands \irqstat, \irqstat, \tmp @ clear Z flag if any | |
29 | clzne \irqnr, \irqstat @ calc irqnr | |
30 | rsbne \irqnr, \irqnr, #31 | |
31 | .endm |