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!

1 files changed, 46 insertions, 0 deletions

diff --git a/arch/arm/lib/copy_page.S b/arch/arm/lib/copy_page.S
new file mode 100644
index 00000000000..4c38abdbe49
--- /dev/null
+++ b/arch/arm/lib/copy_page.S
@@ -0,0 +1,46 @@
+/*
+ *  linux/arch/arm/lib/copypage.S
+ *
+ *  Copyright (C) 1995-1999 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.
+ *
+ *  ASM optimised string functions
+ */
+#include <linux/linkage.h>
+#include <asm/assembler.h>
+#include <asm/constants.h>
+
+#define COPY_COUNT (PAGE_SZ/64 PLD( -1 ))
+
+                .text
+                .align  5
+/*
+ * StrongARM optimised copy_page routine
+ * now 1.78bytes/cycle, was 1.60 bytes/cycle (50MHz bus -> 89MB/s)
+ * Note that we probably achieve closer to the 100MB/s target with
+ * the core clock switching.
+ */
+ENTRY(copy_page)
+                stmfd   sp!, {r4, lr}                   @       2
+        PLD(    pld     [r1, #0]                )
+        PLD(    pld     [r1, #32]               )
+                mov     r2, #COPY_COUNT                 @       1
+                ldmia   r1!, {r3, r4, ip, lr}           @       4+1
+1:      PLD(    pld     [r1, #64]               )
+        PLD(    pld     [r1, #96]               )
+2:              stmia   r0!, {r3, r4, ip, lr}           @       4
+                ldmia   r1!, {r3, r4, ip, lr}           @       4+1
+                stmia   r0!, {r3, r4, ip, lr}           @       4
+                ldmia   r1!, {r3, r4, ip, lr}           @       4+1
+                stmia   r0!, {r3, r4, ip, lr}           @       4
+                ldmia   r1!, {r3, r4, ip, lr}           @       4
+                subs    r2, r2, #1                      @       1
+                stmia   r0!, {r3, r4, ip, lr}           @       4
+                ldmgtia r1!, {r3, r4, ip, lr}           @       4
+                bgt     1b                              @       1
+        PLD(    ldmeqia r1!, {r3, r4, ip, lr}   )
+        PLD(    beq     2b                      )
+                LOADREGS(fd, sp!, {r4, pc})             @       3