mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 07:35:19 +07:00
230f984662
Now that most platforms don't need disable_fiq and arch_ret_to_user macros, we can remove the empty macros or empty entry-macro.S files. Signed-off-by: Rob Herring <rob.herring@calxeda.com> Acked-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Ryan Mallon <rmallon@gmail.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: Shawn Guo <shawn.guo@linaro.org>
43 lines
1.5 KiB
ArmAsm
43 lines
1.5 KiB
ArmAsm
/*
|
|
* iop13xx low level irq macros
|
|
* Copyright (c) 2005-2006, Intel Corporation.
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
.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
|