/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * iop13xx low level irq macros
 * Copyright (c) 2005-2006, Intel Corporation.
 */
	.macro get_irqnr_preamble, base, tmp
	mrc	p15, 0, \tmp, c15, c1, 0
	orr	\tmp, \tmp, #(1 << 6)
	mcr	p15, 0, \tmp, c15, c1, 0	@ Enable cp6 access
	.endm

	/*
	 * Note: a 1-cycle window exists where iintvec will return the value
	 * of iintbase, so we explicitly check for "bad zeros"
	 */
	.macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
	mrc	p6, 0, \irqnr, c3, c2, 0  	@ Read IINTVEC
	cmp	\irqnr, #0
	mrceq	p6, 0, \irqnr, c3, c2, 0  	@ Re-read on potentially bad zero
	adds	\irqstat, \irqnr, #1	  	@ Check for 0xffffffff
	movne	\irqnr, \irqnr, lsr #2	  	@ Convert to irqnr
	.endm

	.macro arch_ret_to_user, tmp1, tmp2
	mrc	p15, 0, \tmp1, c15, c1, 0
	ands	\tmp2, \tmp1, #(1 << 6)
	bicne	\tmp1, \tmp1, #(1 << 6)
	mcrne	p15, 0, \tmp1, c15, c1, 0	@ Disable cp6 access
	.endm