1/* SPDX-License-Identifier: GPL-2.0-only */
2#include <linux/linkage.h>
3#include <linux/init.h>
4#include <asm/assembler.h>
5
6#include "proc-macros.S"
7
8ENTRY(nop_flush_icache_all)
9 ret lr
10ENDPROC(nop_flush_icache_all)
11
12 .globl nop_flush_kern_cache_all
13 .equ nop_flush_kern_cache_all, nop_flush_icache_all
14
15 .globl nop_flush_kern_cache_louis
16 .equ nop_flush_kern_cache_louis, nop_flush_icache_all
17
18 .globl nop_flush_user_cache_all
19 .equ nop_flush_user_cache_all, nop_flush_icache_all
20
21 .globl nop_flush_user_cache_range
22 .equ nop_flush_user_cache_range, nop_flush_icache_all
23
24 .globl nop_coherent_kern_range
25 .equ nop_coherent_kern_range, nop_flush_icache_all
26
27ENTRY(nop_coherent_user_range)
28 mov r0, 0
29 ret lr
30ENDPROC(nop_coherent_user_range)
31
32 .globl nop_flush_kern_dcache_area
33 .equ nop_flush_kern_dcache_area, nop_flush_icache_all
34
35 .globl nop_dma_flush_range
36 .equ nop_dma_flush_range, nop_flush_icache_all
37
38 .globl nop_dma_map_area
39 .equ nop_dma_map_area, nop_flush_icache_all
40
41 .globl nop_dma_unmap_area
42 .equ nop_dma_unmap_area, nop_flush_icache_all
43
44 __INITDATA
45
46 @ define struct cpu_cache_fns (see <asm/cacheflush.h> and proc-macros.S)
47 define_cache_functions nop
48

source code of linux/arch/arm/mm/cache-nop.S