ia64/linux-2.6.18-xen.hg

view include/asm-arm/arch-iop3xx/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-iop3xx/entry-macro.S
3 *
4 * Low-level IRQ helper macros for IOP3xx-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/irqs.h>
12 #if defined(CONFIG_ARCH_IOP321)
13 .macro disable_fiq
14 .endm
16 /*
17 * Note: only deal with normal interrupts, not FIQ
18 */
19 .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
20 mov \irqnr, #0
21 mrc p6, 0, \irqstat, c8, c0, 0 @ Read IINTSRC
22 cmp \irqstat, #0
23 beq 1001f
24 clz \irqnr, \irqstat
25 mov \base, #31
26 subs \irqnr,\base,\irqnr
27 add \irqnr,\irqnr,#IRQ_IOP321_DMA0_EOT
28 1001:
29 .endm
31 #elif defined(CONFIG_ARCH_IOP331)
32 .macro disable_fiq
33 .endm
35 /*
36 * Note: only deal with normal interrupts, not FIQ
37 */
38 .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
39 mov \irqnr, #0
40 mrc p6, 0, \irqstat, c4, c0, 0 @ Read IINTSRC0
41 cmp \irqstat, #0
42 bne 1002f
43 mrc p6, 0, \irqstat, c5, c0, 0 @ Read IINTSRC1
44 cmp \irqstat, #0
45 beq 1001f
46 clz \irqnr, \irqstat
47 rsbs \irqnr,\irqnr,#31 @ recommend by RMK
48 add \irqnr,\irqnr,#IRQ_IOP331_XINT8
49 b 1001f
50 1002: clz \irqnr, \irqstat
51 rsbs \irqnr,\irqnr,#31 @ recommend by RMK
52 add \irqnr,\irqnr,#IRQ_IOP331_DMA0_EOT
53 1001:
54 .endm
56 #endif