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authorStefan Reinauer <reinauer@chromium.org>2013-05-21 12:43:09 -0700
committerRonald G. Minnich <rminnich@gmail.com>2013-12-05 20:11:39 +0100
commitb86062959b8fbd0276f3455539badd86ac0ae867 (patch)
tree39c667af3c0d60e613a4e3920f2dcb024a529900
parent414cd436c9f0f9606778890e1cbc88131732f3d2 (diff)
downloadcoreboot-b86062959b8fbd0276f3455539badd86ac0ae867.tar.xz
libpayload: Have similar cache api on ARM and x86
So far this is used by the USB driver, and instead of having ifdefs all throughout that code, implement the same API on x86 and ARM. Change-Id: I8093ad818ad2e38a0901787aa8674faf591d580c Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: https://gerrit.chromium.org/gerrit/56105 Reviewed-by: David Hendricks <dhendrix@chromium.org> Commit-Queue: Stefan Reinauer <reinauer@chromium.org> Tested-by: Stefan Reinauer <reinauer@chromium.org> Reviewed-on: http://review.coreboot.org/4320 Tested-by: build bot (Jenkins)
-rw-r--r--payloads/libpayload/include/x86/arch/cache.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/payloads/libpayload/include/x86/arch/cache.h b/payloads/libpayload/include/x86/arch/cache.h
new file mode 100644
index 0000000000..73849b7348
--- /dev/null
+++ b/payloads/libpayload/include/x86/arch/cache.h
@@ -0,0 +1,41 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright 2013 Google 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.
+ *
+ * cache.h: Cache maintenance API for x86
+ */
+
+#ifndef __ARCH_CACHE_H__
+#define __ARCH_CACHE_H__
+
+/* These are noops, needed by the USB stack on ARM */
+#define dmb()
+#define dsb()
+#define dcache_clean_invalidate_all()
+#define dcache_clean_invalidate_by_mva(addr, len)
+
+#endif