1/* 2 * include/asm-arm/arch-ebsa110/entry-macro.S 3 * 4 * Low-level IRQ helper macros for ebsa110 platform. 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 11 12 13#define IRQ_STAT 0xff000000 /* read */ 14 15 .macro disable_fiq 16 .endm 17 18 .macro get_irqnr_preamble, base, tmp 19 mov \base, #IRQ_STAT 20 .endm 21 22 .macro arch_ret_to_user, tmp1, tmp2 23 .endm 24 25 .macro get_irqnr_and_base, irqnr, stat, base, tmp 26 ldrb \stat, [\base] @ get interrupts 27 mov \irqnr, #0 28 tst \stat, #15 29 addeq \irqnr, \irqnr, #4 30 moveq \stat, \stat, lsr #4 31 tst \stat, #3 32 addeq \irqnr, \irqnr, #2 33 moveq \stat, \stat, lsr #2 34 tst \stat, #1 35 addeq \irqnr, \irqnr, #1 36 moveq \stat, \stat, lsr #1 37 tst \stat, #1 @ bit 0 should be set 38 .endm 39