1 /* SPDX-License-Identifier: GPL-2.0 */ 2 3 #ifndef __ABI_CSKY_CACHEFLUSH_H 4 #define __ABI_CSKY_CACHEFLUSH_H 5 6 /* Keep includes the same across arches. */ 7 #include <linux/mm.h> 8 9 /* 10 * The cache doesn't need to be flushed when TLB entries change when 11 * the cache is mapped to physical memory, not virtual memory 12 */ 13 #define flush_cache_all() do { } while (0) 14 #define flush_cache_mm(mm) do { } while (0) 15 #define flush_cache_dup_mm(mm) do { } while (0) 16 17 #define flush_cache_range(vma, start, end) \ 18 do { \ 19 if (vma->vm_flags & VM_EXEC) \ 20 icache_inv_all(); \ 21 } while (0) 22 23 #define flush_cache_page(vma, vmaddr, pfn) do { } while (0) 24 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 25 #define flush_dcache_page(page) do { } while (0) 26 #define flush_dcache_mmap_lock(mapping) do { } while (0) 27 #define flush_dcache_mmap_unlock(mapping) do { } while (0) 28 29 #define flush_icache_range(start, end) cache_wbinv_range(start, end) 30 31 void flush_icache_page(struct vm_area_struct *vma, struct page *page); 32 void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, 33 unsigned long vaddr, int len); 34 35 #define flush_cache_vmap(start, end) do { } while (0) 36 #define flush_cache_vunmap(start, end) do { } while (0) 37 38 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ 39 do { \ 40 memcpy(dst, src, len); \ 41 cache_wbinv_range((unsigned long)dst, (unsigned long)dst + len); \ 42 } while (0) 43 #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ 44 memcpy(dst, src, len) 45 46 #endif /* __ABI_CSKY_CACHEFLUSH_H */ 47