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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_M32R_CACHEFLUSH_H
3#define _ASM_M32R_CACHEFLUSH_H
4
5#include <linux/mm.h>
6
7extern void _flush_cache_all(void);
8extern void _flush_cache_copyback_all(void);
9
10#if defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_M32104)
11#define flush_cache_all() do { } while (0)
12#define flush_cache_mm(mm) do { } while (0)
13#define flush_cache_dup_mm(mm) do { } while (0)
14#define flush_cache_range(vma, start, end) do { } while (0)
15#define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
16#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
17#define flush_dcache_page(page) do { } while (0)
18#define flush_dcache_mmap_lock(mapping) do { } while (0)
19#define flush_dcache_mmap_unlock(mapping) do { } while (0)
20#ifndef CONFIG_SMP
21#define flush_icache_range(start, end) _flush_cache_copyback_all()
22#define flush_icache_page(vma,pg) _flush_cache_copyback_all()
23#define flush_icache_user_range(vma,pg,adr,len) _flush_cache_copyback_all()
24#define flush_cache_sigtramp(addr) _flush_cache_copyback_all()
25#else /* CONFIG_SMP */
26extern void smp_flush_cache_all(void);
27#define flush_icache_range(start, end) smp_flush_cache_all()
28#define flush_icache_page(vma,pg) smp_flush_cache_all()
29#define flush_icache_user_range(vma,pg,adr,len) smp_flush_cache_all()
30#define flush_cache_sigtramp(addr) _flush_cache_copyback_all()
31#endif /* CONFIG_SMP */
32#elif defined(CONFIG_CHIP_M32102)
33#define flush_cache_all() do { } while (0)
34#define flush_cache_mm(mm) do { } while (0)
35#define flush_cache_dup_mm(mm) do { } while (0)
36#define flush_cache_range(vma, start, end) do { } while (0)
37#define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
38#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
39#define flush_dcache_page(page) do { } while (0)
40#define flush_dcache_mmap_lock(mapping) do { } while (0)
41#define flush_dcache_mmap_unlock(mapping) do { } while (0)
42#define flush_icache_range(start, end) _flush_cache_all()
43#define flush_icache_page(vma,pg) _flush_cache_all()
44#define flush_icache_user_range(vma,pg,adr,len) _flush_cache_all()
45#define flush_cache_sigtramp(addr) _flush_cache_all()
46#else
47#define flush_cache_all() do { } while (0)
48#define flush_cache_mm(mm) do { } while (0)
49#define flush_cache_dup_mm(mm) do { } while (0)
50#define flush_cache_range(vma, start, end) do { } while (0)
51#define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
52#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
53#define flush_dcache_page(page) do { } while (0)
54#define flush_dcache_mmap_lock(mapping) do { } while (0)
55#define flush_dcache_mmap_unlock(mapping) do { } while (0)
56#define flush_icache_range(start, end) do { } while (0)
57#define flush_icache_page(vma,pg) do { } while (0)
58#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
59#define flush_cache_sigtramp(addr) do { } while (0)
60#endif /* CONFIG_CHIP_* */
61
62#define flush_cache_vmap(start, end) do { } while (0)
63#define flush_cache_vunmap(start, end) do { } while (0)
64
65#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
66do { \
67 memcpy(dst, src, len); \
68 flush_icache_user_range(vma, page, vaddr, len); \
69} while (0)
70#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
71 memcpy(dst, src, len)
72
73#endif /* _ASM_M32R_CACHEFLUSH_H */