arm64/xen: implement ioremap_cached on arm64

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
index 2e12258aa7e47c110729c25265cfa6cae50e99c9..1d12f89140ba0a24bf1975b5425490b7dffb1fc9 100644 (file)
--- a/arch/arm64/include/asm/io.h
+++ b/arch/arm64/include/asm/io.h
@@ -228,10 +228,12 @@ extern void __iounmap(volatile void __iomem *addr);
 #define PROT_DEFAULT           (PTE_TYPE_PAGE | PTE_AF | PTE_DIRTY)
 #define PROT_DEVICE_nGnRE      (PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_ATTRINDX(MT_DEVICE_nGnRE))
 #define PROT_NORMAL_NC         (PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL_NC))
+#define PROT_NORMAL            (PROT_DEFAULT | PTE_ATTRINDX(MT_NORMAL))
 
 #define ioremap(addr, size)            __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
 #define ioremap_nocache(addr, size)    __ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
 #define ioremap_wc(addr, size)         __ioremap((addr), (size), __pgprot(PROT_NORMAL_NC))
+#define ioremap_cached(addr, size)     __ioremap((addr), (size), __pgprot(PROT_NORMAL))
 #define iounmap                                __iounmap
 
 #define PROT_SECT_DEFAULT      (PMD_TYPE_SECT | PMD_SECT_AF)