mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
29 lines
457 B
29 lines
457 B
/* SPDX-License-Identifier: GPL-2.0-only */ |
|
/* |
|
* Copyright (C) 2012 ARM Ltd. |
|
*/ |
|
|
|
#include <linux/linkage.h> |
|
#include <linux/const.h> |
|
#include <asm/assembler.h> |
|
#include <asm/page.h> |
|
|
|
/* |
|
* Clear page @dest |
|
* |
|
* Parameters: |
|
* x0 - dest |
|
*/ |
|
SYM_FUNC_START(clear_page) |
|
mrs x1, dczid_el0 |
|
and w1, w1, #0xf |
|
mov x2, #4 |
|
lsl x1, x2, x1 |
|
|
|
1: dc zva, x0 |
|
add x0, x0, x1 |
|
tst x0, #(PAGE_SIZE - 1) |
|
b.ne 1b |
|
ret |
|
SYM_FUNC_END(clear_page) |
|
EXPORT_SYMBOL(clear_page)
|
|
|