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f27bb139c3
This patch adds udelay, memory and bit operations together with the ksyms exports. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
40 lines
957 B
ArmAsm
40 lines
957 B
ArmAsm
/*
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* Copyright (C) 2012 ARM Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/linkage.h>
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#include <linux/const.h>
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#include <asm/assembler.h>
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#include <asm/page.h>
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/*
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* Clear page @dest
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*
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* Parameters:
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* x0 - dest
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*/
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ENTRY(clear_page)
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mrs x1, dczid_el0
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and w1, w1, #0xf
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mov x2, #4
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lsl x1, x2, x1
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1: dc zva, x0
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add x0, x0, x1
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tst x0, #(PAGE_SIZE - 1)
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b.ne 1b
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ret
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ENDPROC(clear_page)
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