1 files changed, 17 insertions, 22 deletions

diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 30a3e9776123..d02804d650c4 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -38,9 +38,10 @@
 
 #include <linux/string.h>
 #include <linux/compiler.h>
-#include <asm-generic/int-ll64.h>
 #include <asm/page.h>
 
+#include <xen/xen.h>
+
 #define build_mmio_read(name, size, type, reg, barrier) \
 static inline type name(const volatile void __iomem *addr) \
 { type ret; asm volatile("mov" size " %1,%0":reg (ret) \
@@ -85,27 +86,6 @@ build_mmio_write(__writel, "l", unsigned int, "r", )
 build_mmio_read(readq, "q", unsigned long, "=r", :"memory")
 build_mmio_write(writeq, "q", unsigned long, "r", :"memory")
 
-#else
-
-static inline __u64 readq(const volatile void __iomem *addr)
-{
-        const volatile u32 __iomem *p = addr;
-        u32 low, high;
-
-        low = readl(p);
-        high = readl(p + 1);
-
-        return low + ((u64)high << 32);
-}
-
-static inline void writeq(__u64 val, volatile void __iomem *addr)
-{
-        writel(val, addr);
-        writel(val >> 32, addr+4);
-}
-
-#endif
-
 #define readq_relaxed(a)        readq(a)
 
 #define __raw_readq(a)          readq(a)
@@ -115,6 +95,8 @@ static inline void writeq(__u64 val, volatile void __iomem *addr)
 #define readq                   readq
 #define writeq                  writeq
 
+#endif
+
 /**
  *      virt_to_phys    -       map virtual addresses to physical
  *      @address: address to remap
@@ -206,6 +188,7 @@ static inline void __iomem *ioremap(resource_size_t offset, unsigned long size)
 
 extern void iounmap(volatile void __iomem *addr);
 
+extern void set_iounmap_nonlazy(void);
 
 #ifdef __KERNEL__
 
@@ -348,6 +331,18 @@ extern void __iomem *early_memremap(resource_size_t phys_addr,
                                     unsigned long size);
 extern void early_iounmap(void __iomem *addr, unsigned long size);
 extern void fixup_early_ioremap(void);
+extern bool is_early_ioremap_ptep(pte_t *ptep);
+
+#ifdef CONFIG_XEN
+struct bio_vec;
+
+extern bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
+                                      const struct bio_vec *vec2);
+
+#define BIOVEC_PHYS_MERGEABLE(vec1, vec2)                               \
+        (__BIOVEC_PHYS_MERGEABLE(vec1, vec2) &&                         \
+         (!xen_domain() || xen_biovec_phys_mergeable(vec1, vec2)))
+#endif  /* CONFIG_XEN */
 
 #define IO_SPACE_LIMIT 0xffff