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3b20eb2372
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms and conditions of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope 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 you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 33 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000435.254582722@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
30 lines
907 B
ArmAsm
30 lines
907 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* iop13xx low level irq macros
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* Copyright (c) 2005-2006, Intel Corporation.
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*/
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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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.endm
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/*
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* Note: a 1-cycle window exists where iintvec will return the value
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* of iintbase, so we explicitly check for "bad zeros"
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*/
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.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
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mrc p6, 0, \irqnr, c3, c2, 0 @ Read IINTVEC
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cmp \irqnr, #0
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mrceq p6, 0, \irqnr, c3, c2, 0 @ Re-read on potentially bad zero
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adds \irqstat, \irqnr, #1 @ Check for 0xffffffff
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movne \irqnr, \irqnr, lsr #2 @ Convert to irqnr
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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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