Linux-2.6.12-rc2v2.6.12-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, 78 insertions, 0 deletions

diff --git a/arch/arm/lib/io-readsl.S b/arch/arm/lib/io-readsl.S
new file mode 100644
index 000000000000..75a9121cb23f
--- /dev/null
+++ b/arch/arm/lib/io-readsl.S
@@ -0,0 +1,78 @@
+/*
+ *  linux/arch/arm/lib/io-readsl.S
+ *
+ *  Copyright (C) 1995-2000 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>
+
+ENTRY(__raw_readsl)
+                teq     r2, #0          @ do we have to check for the zero len?
+                moveq   pc, lr
+                ands    ip, r1, #3
+                bne     3f
+
+                subs    r2, r2, #4
+                bmi     2f
+                stmfd   sp!, {r4, lr}
+1:              ldr     r3, [r0, #0]
+                ldr     r4, [r0, #0]
+                ldr     ip, [r0, #0]
+                ldr     lr, [r0, #0]
+                subs    r2, r2, #4
+                stmia   r1!, {r3, r4, ip, lr}
+                bpl     1b
+                ldmfd   sp!, {r4, lr}
+2:              movs    r2, r2, lsl #31
+                ldrcs   r3, [r0, #0]
+                ldrcs   ip, [r0, #0]
+                stmcsia r1!, {r3, ip}
+                ldrne   r3, [r0, #0]
+                strne   r3, [r1, #0]
+                mov     pc, lr
+
+3:              ldr     r3, [r0]
+                cmp     ip, #2
+                mov     ip, r3, get_byte_0
+                strb    ip, [r1], #1
+                bgt     6f
+                mov     ip, r3, get_byte_1
+                strb    ip, [r1], #1
+                beq     5f
+                mov     ip, r3, get_byte_2
+                strb    ip, [r1], #1
+
+4:              subs    r2, r2, #1
+                mov     ip, r3, pull #24
+                ldrne   r3, [r0]
+                orrne   ip, ip, r3, push #8
+                strne   ip, [r1], #4
+                bne     4b
+                b       8f
+
+5:              subs    r2, r2, #1
+                mov     ip, r3, pull #16
+                ldrne   r3, [r0]
+                orrne   ip, ip, r3, push #16
+                strne   ip, [r1], #4
+                bne     5b
+                b       7f
+
+6:              subs    r2, r2, #1
+                mov     ip, r3, pull #8
+                ldrne   r3, [r0]
+                orrne   ip, ip, r3, push #24
+                strne   ip, [r1], #4
+                bne     6b
+
+                mov     r3, ip, get_byte_2
+                strb    r3, [r1, #2]
+7:              mov     r3, ip, get_byte_1
+                strb    r3, [r1, #1]
+8:              mov     r3, ip, get_byte_0
+                strb    r3, [r1, #0]
+                mov     pc, lr