ia64/linux-2.6.18-xen.hg

view include/asm-arm/arch-pxa/entry-macro.S @ 782:9ab1c319531f

merge with linux-2.6.18-xen.hg
author Isaku Yamahata <yamahata@valinux.co.jp>
date Wed Jan 28 13:07:23 2009 +0900 (2009-01-28)
parents 831230e53067
children
line source
1 /*
2 * include/asm-arm/arch-pxa/entry-macro.S
3 *
4 * Low-level IRQ helper macros for PXA-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/hardware.h>
11 #include <asm/arch/irqs.h>
13 .macro disable_fiq
14 .endm
16 .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
17 #ifdef CONFIG_PXA27x
18 mrc p6, 0, \irqstat, c0, c0, 0 @ ICIP
19 mrc p6, 0, \irqnr, c1, c0, 0 @ ICMR
20 #else
21 mov \base, #io_p2v(0x40000000) @ IIR Ctl = 0x40d00000
22 add \base, \base, #0x00d00000
23 ldr \irqstat, [\base, #0] @ ICIP
24 ldr \irqnr, [\base, #4] @ ICMR
25 #endif
26 ands \irqnr, \irqstat, \irqnr
27 beq 1001f
28 rsb \irqstat, \irqnr, #0
29 and \irqstat, \irqstat, \irqnr
30 clz \irqnr, \irqstat
31 rsb \irqnr, \irqnr, #(31 - PXA_IRQ_SKIP)
32 1001:
33 .endm