2005-04-16 15:20:36 -07:00
										 
									 
								 
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								/*
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											2008-08-05 16:14:15 +01:00
										 
									 
								 
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								 * arch/arm/mach-iop33x/include/mach/entry-macro.S
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								 *
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											2006-09-18 23:10:26 +01:00
										 
									 
								 
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								 * Low-level IRQ helper macros for IOP33x-based platforms
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								 *
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											2006-09-18 23:26:25 +01:00
										 
									 
								 
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								 * This file is licensed under the terms of the GNU General Public
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								 * License version 2. This program is licensed "as is" without any
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								 * warranty of any kind, whether express or implied.
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								 */
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								#include <mach/iop33x.h>
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											2007-02-16 22:16:32 +01:00
										 
									 
								 
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									.macro	disable_fiq
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									.endm
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											2007-02-16 22:16:32 +01:00
										 
									 
								 
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									.macro get_irqnr_preamble, base, tmp
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									mrc	p15, 0, \tmp, c15, c1, 0
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									orr	\tmp, \tmp, #(1 << 6)
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									mcr	p15, 0, \tmp, c15, c1, 0	@ Enable cp6 access
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									mrc	p15, 0, \tmp, c15, c1, 0
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									mov	\tmp, \tmp
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									sub	pc, pc, #4			@ cp_wait
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									.endm
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									.macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
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									mrc     p6, 0, \irqstat, c14, c0, 0     @ Read IINTVEC
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									cmp     \irqstat, #0
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									mrceq   p6, 0, \irqstat, c14, c0, 0     @ erratum 63 workaround
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									adds    \irqnr, \irqstat, #1
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									movne   \irqnr, \irqstat, lsr #2
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									.endm
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									.macro arch_ret_to_user, tmp1, tmp2
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									mrc	p15, 0, \tmp1, c15, c1, 0
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									ands	\tmp2, \tmp1, #(1 << 6)
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									bicne	\tmp1, \tmp1, #(1 << 6)
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									mcrne	p15, 0, \tmp1, c15, c1, 0	@ Disable cp6 access
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									.endm
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