Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / score / include / asm / cacheflush.h

diff --git a/kernel/arch/score/include/asm/cacheflush.h b/kernel/arch/score/include/asm/cacheflush.h
new file mode 100644 (file)
index 0000000..1d545d0
--- /dev/null
+++ b/kernel/arch/score/include/asm/cacheflush.h
@@ -0,0 +1,48 @@
+#ifndef _ASM_SCORE_CACHEFLUSH_H
+#define _ASM_SCORE_CACHEFLUSH_H
+
+/* Keep includes the same across arches. */
+#include <linux/mm.h>
+
+extern void flush_cache_all(void);
+extern void flush_cache_mm(struct mm_struct *mm);
+extern void flush_cache_range(struct vm_area_struct *vma,
+                               unsigned long start, unsigned long end);
+extern void flush_cache_page(struct vm_area_struct *vma,
+                               unsigned long page, unsigned long pfn);
+extern void flush_cache_sigtramp(unsigned long addr);
+extern void flush_icache_all(void);
+extern void flush_icache_range(unsigned long start, unsigned long end);
+extern void flush_dcache_range(unsigned long start, unsigned long end);
+extern void flush_dcache_page(struct page *page);
+
+#define PG_dcache_dirty         PG_arch_1
+
+#define flush_cache_dup_mm(mm)                 do {} while (0)
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
+#define flush_dcache_mmap_lock(mapping)                do {} while (0)
+#define flush_dcache_mmap_unlock(mapping)      do {} while (0)
+#define flush_cache_vmap(start, end)           do {} while (0)
+#define flush_cache_vunmap(start, end)         do {} while (0)
+
+static inline void flush_icache_page(struct vm_area_struct *vma,
+       struct page *page)
+{
+       if (vma->vm_flags & VM_EXEC) {
+               void *v = page_address(page);
+               flush_icache_range((unsigned long) v,
+                               (unsigned long) v + PAGE_SIZE);
+       }
+}
+
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+       memcpy(dst, src, len)
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len)     \
+       do {                                                    \
+               memcpy(dst, src, len);                          \
+               if ((vma->vm_flags & VM_EXEC))                  \
+                       flush_cache_page(vma, vaddr, page_to_pfn(page));\
+       } while (0)
+
+#endif /* _ASM_SCORE_CACHEFLUSH_H */