powerpc: Implement arch_get_random_long/int() for powernv

[linux-2.6-microblaze.git] / arch / powerpc / include / asm / archrandom.h

diff --git a/arch/powerpc/include/asm/archrandom.h b/arch/powerpc/include/asm/archrandom.h
new file mode 100644 (file)
index 0000000..d853d16
--- /dev/null
+++ b/arch/powerpc/include/asm/archrandom.h
@@ -0,0 +1,32 @@
+#ifndef _ASM_POWERPC_ARCHRANDOM_H
+#define _ASM_POWERPC_ARCHRANDOM_H
+
+#ifdef CONFIG_ARCH_RANDOM
+
+#include <asm/machdep.h>
+
+static inline int arch_get_random_long(unsigned long *v)
+{
+       if (ppc_md.get_random_long)
+               return ppc_md.get_random_long(v);
+
+       return 0;
+}
+
+static inline int arch_get_random_int(unsigned int *v)
+{
+       unsigned long val;
+       int rc;
+
+       rc = arch_get_random_long(&val);
+       if (rc)
+               *v = val;
+
+       return rc;
+}
+
+int powernv_get_random_long(unsigned long *v);
+
+#endif /* CONFIG_ARCH_RANDOM */
+
+#endif /* _ASM_POWERPC_ARCHRANDOM_H */