s390: add no-execute support

[mirror_ubuntu-bionic-kernel.git] / arch / s390 / include / asm / cacheflush.h

diff --git a/arch/s390/include/asm/cacheflush.h b/arch/s390/include/asm/cacheflush.h
index 58fae7d098cf0993f7484b3f2df7191fe1afe14d..0499334f9473a94e6a80e9144e9fd2946167f4d7 100644 (file)
--- a/arch/s390/include/asm/cacheflush.h
+++ b/arch/s390/include/asm/cacheflush.h
@@ -4,9 +4,31 @@
 /* Caches aren't brain-dead on the s390. */
 #include <asm-generic/cacheflush.h>
 
-int set_memory_ro(unsigned long addr, int numpages);
-int set_memory_rw(unsigned long addr, int numpages);
-int set_memory_nx(unsigned long addr, int numpages);
-int set_memory_x(unsigned long addr, int numpages);
+#define SET_MEMORY_RO  1UL
+#define SET_MEMORY_RW  2UL
+#define SET_MEMORY_NX  4UL
+#define SET_MEMORY_X   8UL
+
+int __set_memory(unsigned long addr, int numpages, unsigned long flags);
+
+static inline int set_memory_ro(unsigned long addr, int numpages)
+{
+       return __set_memory(addr, numpages, SET_MEMORY_RO);
+}
+
+static inline int set_memory_rw(unsigned long addr, int numpages)
+{
+       return __set_memory(addr, numpages, SET_MEMORY_RW);
+}
+
+static inline int set_memory_nx(unsigned long addr, int numpages)
+{
+       return __set_memory(addr, numpages, SET_MEMORY_NX);
+}
+
+static inline int set_memory_x(unsigned long addr, int numpages)
+{
+       return __set_memory(addr, numpages, SET_MEMORY_X);
+}
 
 #endif /* _S390_CACHEFLUSH_H */