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-rw-r--r--include/asm-x86/cacheflush.h2
-rw-r--r--include/asm-x86/page.h1
2 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-x86/cacheflush.h b/include/asm-x86/cacheflush.h
index 8e205a131250..092b9b4eb003 100644
--- a/include/asm-x86/cacheflush.h
+++ b/include/asm-x86/cacheflush.h
@@ -24,6 +24,8 @@
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
memcpy((dst), (src), (len))
+#define PG_non_WB PG_arch_1
+PAGEFLAG(NonWB, non_WB)
/*
* The set_memory_* API can be used to change various attributes of a virtual
diff --git a/include/asm-x86/page.h b/include/asm-x86/page.h
index 49982110e4d9..3407ac12ba34 100644
--- a/include/asm-x86/page.h
+++ b/include/asm-x86/page.h
@@ -57,6 +57,7 @@ typedef struct { pgdval_t pgd; } pgd_t;
typedef struct { pgprotval_t pgprot; } pgprot_t;
extern int page_is_ram(unsigned long pagenr);
+extern int pagerange_is_ram(unsigned long start, unsigned long end);
extern int devmem_is_allowed(unsigned long pagenr);
extern void map_devmem(unsigned long pfn, unsigned long size,
pgprot_t vma_prot);