ia64/linux-2.6.18-xen.hg

view include/asm-arm/arch-shark/entry-macro.S @ 0:831230e53067

Import 2.6.18 from kernel.org tarball.
author Ian Campbell <ian.campbell@xensource.com>
date Wed Apr 11 14:15:44 2007 +0100 (2007-04-11)
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1 /*
2 * include/asm-arm/arch-shark/entry-macro.S
3 *
4 * Low-level IRQ helper macros for Shark 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 .macro disable_fiq
11 .endm
13 .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
14 mov r4, #0xe0000000
16 mov \irqstat, #0x0C
17 strb \irqstat, [r4, #0x20] @outb(0x0C, 0x20) /* Poll command */
18 ldrb \irqnr, [r4, #0x20] @irq = inb(0x20) & 7
19 and \irqstat, \irqnr, #0x80
20 teq \irqstat, #0
21 beq 43f
22 and \irqnr, \irqnr, #7
23 teq \irqnr, #2
24 bne 44f
25 43: mov \irqstat, #0x0C
26 strb \irqstat, [r4, #0xa0] @outb(0x0C, 0xA0) /* Poll command */
27 ldrb \irqnr, [r4, #0xa0] @irq = (inb(0xA0) & 7) + 8
28 and \irqstat, \irqnr, #0x80
29 teq \irqstat, #0
30 beq 44f
31 and \irqnr, \irqnr, #7
32 add \irqnr, \irqnr, #8
33 44: teq \irqstat, #0
34 .endm