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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/arm/lib/csumpartialcopy.S | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/arm/lib/csumpartialcopy.S')
-rw-r--r-- | arch/arm/lib/csumpartialcopy.S | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/arm/lib/csumpartialcopy.S b/arch/arm/lib/csumpartialcopy.S new file mode 100644 index 000000000000..990ee63b2465 --- /dev/null +++ b/arch/arm/lib/csumpartialcopy.S @@ -0,0 +1,52 @@ +/* + * linux/arch/arm/lib/csumpartialcopy.S + * + * Copyright (C) 1995-1998 Russell King + * + * 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. + */ +#include <linux/linkage.h> +#include <asm/assembler.h> + + .text + +/* Function: __u32 csum_partial_copy_nocheck(const char *src, char *dst, int len, __u32 sum) + * Params : r0 = src, r1 = dst, r2 = len, r3 = checksum + * Returns : r0 = new checksum + */ + + .macro save_regs + stmfd sp!, {r1, r4 - r8, fp, ip, lr, pc} + .endm + + .macro load_regs,flags + LOADREGS(\flags,fp,{r1, r4 - r8, fp, sp, pc}) + .endm + + .macro load1b, reg1 + ldrb \reg1, [r0], #1 + .endm + + .macro load2b, reg1, reg2 + ldrb \reg1, [r0], #1 + ldrb \reg2, [r0], #1 + .endm + + .macro load1l, reg1 + ldr \reg1, [r0], #4 + .endm + + .macro load2l, reg1, reg2 + ldr \reg1, [r0], #4 + ldr \reg2, [r0], #4 + .endm + + .macro load4l, reg1, reg2, reg3, reg4 + ldmia r0!, {\reg1, \reg2, \reg3, \reg4} + .endm + +#define FN_ENTRY ENTRY(csum_partial_copy_nocheck) + +#include "csumpartialcopygeneric.S" |