summaryrefslogtreecommitdiff
path: root/payloads/libpayload/include/arch
diff options
context:
space:
mode:
authorJordan Crouse <jordan.crouse@amd.com>2008-05-07 20:34:02 +0000
committerJordan Crouse <jordan.crouse@amd.com>2008-05-07 20:34:02 +0000
commit681ec27e2c64763bba02ef816d41b6b366559f03 (patch)
treef943180f77f85b553e7e47791c06deaf44f184d3 /payloads/libpayload/include/arch
parent35993a231ecb4957d18719801cc4519b1df80d70 (diff)
libpayload: Add LAR walking support
Add suport for walking LARs. These try to emulate the f* functions from POSIX, though they are obviously different in their behavior. Signed-off-by: Jordan Crouse <jordan.crouse@amd.com> Acked-by: Myles Watson <mylesgw@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3288 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'payloads/libpayload/include/arch')
-rw-r--r--payloads/libpayload/include/arch/endian.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/payloads/libpayload/include/arch/endian.h b/payloads/libpayload/include/arch/endian.h
new file mode 100644
index 0000000000..995681494a
--- /dev/null
+++ b/payloads/libpayload/include/arch/endian.h
@@ -0,0 +1,46 @@
+/*
+ * This file is part of the libpayload project.
+ *
+ * Copyright (C) 2008 Advanced Micro Devices, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef _ARCH_ENDIAN_H
+#define _ARCH_ENDIAN_H
+
+static u32 ntohl(u32 in)
+{
+ return ((in & 0xFF) << 24) | ((in & 0xFF00) << 8) |
+ ((in & 0xFF0000) >> 8) | ((in & 0xFF000000) >> 24);
+}
+
+static u64 ntohll(u64 in)
+{
+ u32 h = in >> 32;
+ u32 l = in & 0xFFFFFFFF;
+
+ return (((u64) ntohl(l) << 32) | ((u64) ntohl(h)));
+}
+#endif