diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
---|---|---|
committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/unicore32/lib/copy_page.S | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/unicore32/lib/copy_page.S')
-rw-r--r-- | kernel/arch/unicore32/lib/copy_page.S | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/kernel/arch/unicore32/lib/copy_page.S b/kernel/arch/unicore32/lib/copy_page.S new file mode 100644 index 000000000..3a448d755 --- /dev/null +++ b/kernel/arch/unicore32/lib/copy_page.S @@ -0,0 +1,39 @@ +/* + * linux/arch/unicore32/lib/copy_page.S + * + * Code specific to PKUnity SoC and UniCore ISA + * + * Copyright (C) 2001-2010 GUAN Xue-tao + * + * 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. + * + * ASM optimised string functions + */ +#include <linux/linkage.h> +#include <asm/assembler.h> +#include <generated/asm-offsets.h> +#include <asm/cache.h> + +#define COPY_COUNT (PAGE_SZ/256) + + .text + .align 5 +/* + * UniCore optimised copy_page routine + */ +ENTRY(copy_page) + stm.w (r17 - r19, lr), [sp-] + mov r17, r0 + mov r18, r1 + mov r19, #COPY_COUNT +1: + .rept 4 + ldm.w (r0 - r15), [r18]+ + stm.w (r0 - r15), [r17]+ + .endr + sub.a r19, r19, #1 + bne 1b + ldm.w (r17 - r19, pc), [sp]+ +ENDPROC(copy_page) |