Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 49 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..f0f16b4fc
--- /dev/null
+++ b/arch/powerpc/include/asm/archrandom.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_POWERPC_ARCHRANDOM_H
+#define _ASM_POWERPC_ARCHRANDOM_H
+
+#ifdef CONFIG_ARCH_RANDOM
+
+#include <asm/machdep.h>
+
+static inline bool arch_get_random_long(unsigned long *v)
+{
+	return false;
+}
+
+static inline bool arch_get_random_int(unsigned int *v)
+{
+	return false;
+}
+
+static inline bool arch_get_random_seed_long(unsigned long *v)
+{
+	if (ppc_md.get_random_seed)
+		return ppc_md.get_random_seed(v);
+
+	return false;
+}
+
+static inline bool arch_get_random_seed_int(unsigned int *v)
+{
+	unsigned long val;
+	bool rc;
+
+	rc = arch_get_random_seed_long(&val);
+	if (rc)
+		*v = val;
+
+	return rc;
+}
+#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 */