1/* 2 * include/asm-arm/arch-iop32x/entry-macro.S 3 * 4 * Low-level IRQ helper macros for IOP32x-based 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/arch/iop32x.h> 11 12 .macro disable_fiq 13 .endm 14 15 .macro get_irqnr_preamble, base, tmp 16 mrc p15, 0, \tmp, c15, c1, 0 17 orr \tmp, \tmp, #(1 << 6) 18 mcr p15, 0, \tmp, c15, c1, 0 @ Enable cp6 access 19 mrc p15, 0, \tmp, c15, c1, 0 20 mov \tmp, \tmp 21 sub pc, pc, #4 @ cp_wait 22 .endm 23 24 .macro get_irqnr_and_base, irqnr, irqstat, base, tmp 25 mrc p6, 0, \irqstat, c8, c0, 0 @ Read IINTSRC 26 cmp \irqstat, #0 27 clzne \irqnr, \irqstat 28 rsbne \irqnr, \irqnr, #31 29 .endm 30 31 .macro arch_ret_to_user, tmp1, tmp2 32 mrc p15, 0, \tmp1, c15, c1, 0 33 ands \tmp2, \tmp1, #(1 << 6) 34 bicne \tmp1, \tmp1, #(1 << 6) 35 mcrne p15, 0, \tmp1, c15, c1, 0 @ Disable cp6 access 36 .endm 37