ia64/linux-2.6.18-xen.hg

view include/asm-arm/arch-shark/entry-macro.S @ 912:dd42cdb0ab89

[IA64] Build blktap2 driver by default in x86 builds.

add CONFIG_XEN_BLKDEV_TAP2=y to buildconfigs/linux-defconfig_xen_ia64.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
author Isaku Yamahata <yamahata@valinux.co.jp>
date Mon Jun 29 12:09:16 2009 +0900 (2009-06-29)
parents 831230e53067
children
line source
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