xref: /OK3568_Linux_fs/kernel/drivers/soc/rockchip/minidump/rk_minidump_asm.S (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun/* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun/*
3*4882a593Smuzhiyun * Copyright (c) 2017-2021, The Linux Foundation. All rights reserved.
4*4882a593Smuzhiyun * Copyright (c) 2023 Rockchip Electronics Co., Ltd.
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun#include <linux/linkage.h>
8*4882a593Smuzhiyun#include <asm/assembler.h>
9*4882a593Smuzhiyun#include <asm/alternative.h>
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun/*
12*4882a593Smuzhiyun *	__flush_dcache_area(kaddr, size)
13*4882a593Smuzhiyun *
14*4882a593Smuzhiyun *	Ensure that any D-cache lines for the interval [kaddr, kaddr+size)
15*4882a593Smuzhiyun *	are cleaned and invalidated to the PoC.
16*4882a593Smuzhiyun *
17*4882a593Smuzhiyun *	- kaddr   - kernel address
18*4882a593Smuzhiyun *	- size    - size in question
19*4882a593Smuzhiyun */
20*4882a593SmuzhiyunSYM_FUNC_START_PI(rk_md_flush_dcache_area)
21*4882a593Smuzhiyun	dcache_by_line_op civac, sy, x0, x1, x2, x3
22*4882a593Smuzhiyun	ret
23*4882a593SmuzhiyunSYM_FUNC_END_PI(rk_md_flush_dcache_area)
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