/* * include/asm-arm/arch-orion5x/entry-macro.S * * Low-level IRQ helper macros for Orion 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/arch/orion5x.h> .macro disable_fiq .endm .macro arch_ret_to_user, tmp1, tmp2 .endm .macro get_irqnr_preamble, base, tmp ldr \base, =MAIN_IRQ_CAUSE .endm .macro get_irqnr_and_base, irqnr, irqstat, base, tmp ldr \irqstat, [\base, #0] @ main cause ldr \tmp, [\base, #(MAIN_IRQ_MASK - MAIN_IRQ_CAUSE)] @ main mask mov \irqnr, #0 @ default irqnr @ find cause bits that are unmasked ands \irqstat, \irqstat, \tmp @ clear Z flag if any clzne \irqnr, \irqstat @ calc irqnr rsbne \irqnr, \irqnr, #31 .endm