asm-generic: processor.h: adding new header file
Sumit Singh [Fri, 14 Mar 2014 06:27:24 +0000 (11:27 +0530)]
Defining a new header file and adding architecture
independent macros. Using these macros we are optimizing
power usage on ARM64.

bug 1440421

Change-Id: I7393d35703d0b0a504331653d70f109a50a197c7
Signed-off-by: Sumit Singh <sumsingh@nvidia.com>
Reviewed-on: http://git-master/r/381905
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Alexander Van Brunt <avanbrunt@nvidia.com>
Reviewed-by: Sri Krishna Chowdary <schowdary@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>

include/asm-generic/processor.h [new file with mode: 0644]

diff --git a/include/asm-generic/processor.h b/include/asm-generic/processor.h
new file mode 100644 (file)
index 0000000..cba2d9e
--- /dev/null
@@ -0,0 +1,30 @@
+/*
+ * include/asm-generic/processor.h
+ *
+ * Copyright (c) 2014 NVIDIA Corporation. All rights reserved.
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _ASM_GENERIC_PROCESSOR_H_
+#define _ASM_GENERIC_PROCESSOR_H_
+
+#ifndef cpu_relaxed_read
+#define cpu_relaxed_read(p) (*(p))
+#endif
+
+#ifndef cpu_relaxed_read_long
+#define cpu_relaxed_read_long(p) (*(p))
+#endif
+
+#ifndef cpu_read_relax
+#define cpu_read_relax() cpu_relax()
+#endif
+
+#endif /*_ASM_GENERIC_PROCESSOR_H_*/