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 7 extern void _flush_cache_all(void); 8 extern 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 */ 26 extern 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) \ 66 do { \ 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 */ 74