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Diffstat (limited to 'arch/riscv/include/asm/cacheflush.h')
-rw-r--r--arch/riscv/include/asm/cacheflush.h65
1 files changed, 5 insertions, 60 deletions
diff --git a/arch/riscv/include/asm/cacheflush.h b/arch/riscv/include/asm/cacheflush.h
index c8677c75f82c..23ff70350992 100644
--- a/arch/riscv/include/asm/cacheflush.h
+++ b/arch/riscv/include/asm/cacheflush.h
@@ -8,65 +8,6 @@
#include <linux/mm.h>
-#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
-
-/*
- * The cache doesn't need to be flushed when TLB entries change when
- * the cache is mapped to physical memory, not virtual memory
- */
-static inline void flush_cache_all(void)
-{
-}
-
-static inline void flush_cache_mm(struct mm_struct *mm)
-{
-}
-
-static inline void flush_cache_dup_mm(struct mm_struct *mm)
-{
-}
-
-static inline void flush_cache_range(struct vm_area_struct *vma,
- unsigned long start,
- unsigned long end)
-{
-}
-
-static inline void flush_cache_page(struct vm_area_struct *vma,
- unsigned long vmaddr,
- unsigned long pfn)
-{
-}
-
-static inline void flush_dcache_mmap_lock(struct address_space *mapping)
-{
-}
-
-static inline void flush_dcache_mmap_unlock(struct address_space *mapping)
-{
-}
-
-static inline void flush_icache_page(struct vm_area_struct *vma,
- struct page *page)
-{
-}
-
-static inline void flush_cache_vmap(unsigned long start, unsigned long end)
-{
-}
-
-static inline void flush_cache_vunmap(unsigned long start, unsigned long end)
-{
-}
-
-#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)
-
static inline void local_flush_icache_all(void)
{
asm volatile ("fence.i" ::: "memory");
@@ -79,13 +20,15 @@ static inline void flush_dcache_page(struct page *page)
if (test_bit(PG_dcache_clean, &page->flags))
clear_bit(PG_dcache_clean, &page->flags);
}
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
/*
* RISC-V doesn't have an instruction to flush parts of the instruction cache,
* so instead we just flush the whole thing.
*/
#define flush_icache_range(start, end) flush_icache_all()
-#define flush_icache_user_range(vma, pg, addr, len) flush_icache_mm(vma->vm_mm, 0)
+#define flush_icache_user_page(vma, pg, addr, len) \
+ flush_icache_mm(vma->vm_mm, 0)
#ifndef CONFIG_SMP
@@ -105,4 +48,6 @@ void flush_icache_mm(struct mm_struct *mm, bool local);
#define SYS_RISCV_FLUSH_ICACHE_LOCAL 1UL
#define SYS_RISCV_FLUSH_ICACHE_ALL (SYS_RISCV_FLUSH_ICACHE_LOCAL)
+#include <asm-generic/cacheflush.h>
+
#endif /* _ASM_RISCV_CACHEFLUSH_H */