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-rw-r--r--arch/powerpc/include/asm/archrandom.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/archrandom.h b/arch/powerpc/include/asm/archrandom.h
new file mode 100644
index 000000000..0cc6eedc4
--- /dev/null
+++ b/arch/powerpc/include/asm/archrandom.h
@@ -0,0 +1,57 @@
+#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;
+}
+
+static inline int arch_has_random(void)
+{
+ return !!ppc_md.get_random_long;
+}
+
+static inline int arch_get_random_seed_long(unsigned long *v)
+{
+ return 0;
+}
+static inline int arch_get_random_seed_int(unsigned int *v)
+{
+ return 0;
+}
+static inline int arch_has_random_seed(void)
+{
+ return 0;
+}
+
+#endif /* CONFIG_ARCH_RANDOM */
+
+#ifdef CONFIG_PPC_POWERNV
+int powernv_hwrng_present(void);
+int powernv_get_random_long(unsigned long *v);
+int powernv_get_random_real_mode(unsigned long *v);
+#else
+static inline int powernv_hwrng_present(void) { return 0; }
+static inline int powernv_get_random_real_mode(unsigned long *v) { return 0; }
+#endif
+
+#endif /* _ASM_POWERPC_ARCHRANDOM_H */