linux-vybrid_public/arch/arm/mach-tegra/include/mach/entry-macro.S

/* arch/arm/mach-tegra/include/mach/entry-macro.S
 *
 * Copyright (C) 2009 Palm, Inc.
 *
 * This software is licensed under the terms of the GNU General Public
 * License version 2, as published by the Free Software Foundation, and
 * may be copied, distributed, and modified under those terms.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 */
#include <mach/iomap.h>
#include <mach/io.h>

#if defined(CONFIG_ARM_GIC)
#define HAVE_GET_IRQNR_PREAMBLE
#include <asm/hardware/entry-macro-gic.S>

	/* Uses the GIC interrupt controller built into the cpu */
#define ICTRL_BASE (IO_CPU_VIRT + 0x100)

	.macro	disable_fiq
	.endm

	.macro	get_irqnr_preamble, base, tmp
	movw \base, #(ICTRL_BASE & 0x0000ffff)
	movt \base, #((ICTRL_BASE & 0xffff0000) >> 16)
	.endm

	.macro  arch_ret_to_user, tmp1, tmp2
	.endm
#else
	/* legacy interrupt controller for AP16 */
	.macro	disable_fiq
	.endm

	.macro	get_irqnr_preamble, base, tmp
	@ enable imprecise aborts
	cpsie	a
	@ EVP base at 0xf010f000
	mov \base, #0xf0000000
	orr \base, #0x00100000
	orr \base, #0x0000f000
	.endm

	.macro	arch_ret_to_user, tmp1, tmp2
	.endm

	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
	ldr \irqnr, [\base, #0x20]	@ EVT_IRQ_STS
	cmp \irqnr, #0x80
	.endm
#endif