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authorCatalin Marinas <catalin.marinas@arm.com>2013-03-21 16:16:43 +0000
committerCatalin Marinas <catalin.marinas@arm.com>2013-03-21 17:39:29 +0000
commit4a8992271c843cb5bcd3321bf6a02eb251280b1d (patch)
tree100bdf14109f0d6b6ac559db6f25a337daa4280c /arch/arm64/include
parent792072066d30372772137be9ee2f4d72d77329f9 (diff)
downloadlinaro-lsk-4a8992271c843cb5bcd3321bf6a02eb251280b1d.tar.gz
arm64: klib: Optimised memory functions
This patch introduces AArch64-specific memory functions (memcpy, memmove, memchr, memset). These functions are not optimised for any CPU implementation but can be used as a starting point once hardware is available. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include')
-rw-r--r--arch/arm64/include/asm/Kbuild1
-rw-r--r--arch/arm64/include/asm/string.h31
2 files changed, 31 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild
index e5fe4f99fe1..a13a4a493d5 100644
--- a/arch/arm64/include/asm/Kbuild
+++ b/arch/arm64/include/asm/Kbuild
@@ -39,7 +39,6 @@ generic-y += shmbuf.h
generic-y += sizes.h
generic-y += socket.h
generic-y += sockios.h
-generic-y += string.h
generic-y += switch_to.h
generic-y += swab.h
generic-y += termbits.h
diff --git a/arch/arm64/include/asm/string.h b/arch/arm64/include/asm/string.h
new file mode 100644
index 00000000000..be8a644f306
--- /dev/null
+++ b/arch/arm64/include/asm/string.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2013 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef __ASM_STRING_H
+#define __ASM_STRING_H
+
+#define __HAVE_ARCH_MEMCPY
+extern void *memcpy(void *, const void *, __kernel_size_t);
+
+#define __HAVE_ARCH_MEMMOVE
+extern void *memmove(void *, const void *, __kernel_size_t);
+
+#define __HAVE_ARCH_MEMCHR
+extern void *memchr(const void *, int, __kernel_size_t);
+
+#define __HAVE_ARCH_MEMSET
+extern void *memset(void *, int, __kernel_size_t);
+
+#endif