| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef __ASM_CACHEFLUSH_H |
| #define __ASM_CACHEFLUSH_H |
| |
| /* Keep includes the same across arches. */ |
| #include <linux/mm.h> |
| |
| /* |
| * The cache doesn't need to be flushed when TLB entries change when |
| * the cache is mapped to physical memory, not virtual memory |
| */ |
| #define flush_cache_all() do { } while (0) |
| #define flush_cache_mm(mm) do { } while (0) |
| #define flush_cache_dup_mm(mm) do { } while (0) |
| #define flush_cache_range(vma, start, end) do { } while (0) |
| #define flush_cache_page(vma, vmaddr, pfn) do { } while (0) |
| #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 |
| #define flush_dcache_page(page) do { } while (0) |
| #define flush_dcache_mmap_lock(mapping) do { } while (0) |
| #define flush_dcache_mmap_unlock(mapping) do { } while (0) |
| #define flush_icache_range(start, end) do { } while (0) |
| #define flush_icache_page(vma,pg) do { } while (0) |
| #define flush_icache_user_range(vma,pg,adr,len) do { } while (0) |
| #define flush_cache_vmap(start, end) do { } while (0) |
| #define flush_cache_vunmap(start, end) do { } while (0) |
| |
| #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ |
| do { \ |
| memcpy(dst, src, len); \ |
| flush_icache_user_range(vma, page, vaddr, len); \ |
| } while (0) |
| #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ |
| memcpy(dst, src, len) |
| |
| #endif /* __ASM_CACHEFLUSH_H */ |
