Manual formatting tweaks to Curve448 code

[openssl.git] / crypto / ppc_arch.h

diff --git a/crypto/ppc_arch.h b/crypto/ppc_arch.h
index 1192edfa2d4bf806f512cb91e23723c9c4d4d543..65cf96fc1fe8be1d0414bff322290842958fcbcc 100644 (file)
--- a/crypto/ppc_arch.h
+++ b/crypto/ppc_arch.h
@@ -1,10 +1,26 @@
-#ifndef __PPC_ARCH_H__
-#define __PPC_ARCH_H__
+/*
+ * Copyright 2014-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#ifndef HEADER_PPC_ARCH_H
+# define HEADER_PPC_ARCH_H
 
 extern unsigned int OPENSSL_ppccap_P;
 
-#define PPC_FPU64      (1<<0)
-#define PPC_ALTIVEC    (1<<1)
-#define PPC_CRYPTO207  (1<<2)
+/*
+ * Flags' usage can appear ambiguous, because they are set rather
+ * to reflect OpenSSL performance preferences than actual processor
+ * capabilities.
+ */
+# define PPC_FPU64       (1<<0)
+# define PPC_ALTIVEC     (1<<1)
+# define PPC_CRYPTO207   (1<<2)
+# define PPC_FPU         (1<<3)
+# define PPC_MADD300     (1<<4)
 
 #endif