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authorDavid Hildenbrand <dahi@linux.vnet.ibm.com>2015-11-16 12:45:03 +0300
committerChristian Borntraeger <borntraeger@de.ibm.com>2016-06-20 10:55:32 +0300
commit3d84683bd737e397ae200e881a3230e469c59ad6 (patch)
tree80c156117fb75ad8293ec54d94b9a86702ad2de4
parent37d9df98b71afdf3baf41ee5451b6206c13328c6 (diff)
downloadlinux-3d84683bd737e397ae200e881a3230e469c59ad6.tar.xz
s390: introduce page_to_virt() and pfn_to_virt()
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
-rw-r--r--arch/s390/include/asm/page.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
index f874e7d51c19..b5edff32e547 100644
--- a/arch/s390/include/asm/page.h
+++ b/arch/s390/include/asm/page.h
@@ -147,6 +147,8 @@ static inline int devmem_is_allowed(unsigned long pfn)
#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT)
+#define pfn_to_virt(pfn) __va((pfn) << PAGE_SHIFT)
+#define page_to_virt(page) pfn_to_virt(page_to_pfn(page))
#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | \
VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)