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!
diff --git a/arch/arm/lib/io-writesw-armv4.S b/arch/arm/lib/io-writesw-armv4.S
new file mode 100644
index 0000000..6d1d7c2
--- /dev/null
+++ b/arch/arm/lib/io-writesw-armv4.S
@@ -0,0 +1,95 @@
+/*
+ * linux/arch/arm/lib/io-writesw-armv4.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>
+
+ .macro outword, rd
+#ifndef __ARMEB__
+ strh \rd, [r0]
+ mov \rd, \rd, lsr #16
+ strh \rd, [r0]
+#else
+ mov lr, \rd, lsr #16
+ strh lr, [r0]
+ strh \rd, [r0]
+#endif
+ .endm
+
+.outsw_align: movs ip, r1, lsl #31
+ bne .outsw_noalign
+
+ ldrh r3, [r1], #2
+ sub r2, r2, #1
+ strh r3, [r0]
+
+ENTRY(__raw_writesw)
+ teq r2, #0
+ moveq pc, lr
+ ands r3, r1, #3
+ bne .outsw_align
+
+ stmfd sp!, {r4, r5, lr}
+
+ subs r2, r2, #8
+ bmi .no_outsw_8
+
+.outsw_8_lp: ldmia r1!, {r3, r4, r5, ip}
+ subs r2, r2, #8
+ outword r3
+ outword r4
+ outword r5
+ outword ip
+ bpl .outsw_8_lp
+
+.no_outsw_8: tst r2, #4
+ beq .no_outsw_4
+
+ ldmia r1!, {r3, ip}
+ outword r3
+ outword ip
+
+.no_outsw_4: movs r2, r2, lsl #31
+ bcc .no_outsw_2
+
+ ldr r3, [r1], #4
+ outword r3
+
+.no_outsw_2: ldrneh r3, [r1]
+ strneh r3, [r0]
+
+ ldmfd sp!, {r4, r5, pc}
+
+#ifdef __ARMEB__
+#define pull_hbyte0 lsl #8
+#define push_hbyte1 lsr #24
+#else
+#define pull_hbyte0 lsr #24
+#define push_hbyte1 lsl #8
+#endif
+
+.outsw_noalign: ldr r3, [r1, -r3]!
+ subcs r2, r2, #1
+ bcs 2f
+ subs r2, r2, #2
+ bmi 3f
+
+1: mov ip, r3, lsr #8
+ strh ip, [r0]
+2: mov ip, r3, pull_hbyte0
+ ldr r3, [r1, #4]!
+ subs r2, r2, #2
+ orr ip, ip, r3, push_hbyte1
+ strh ip, [r0]
+ bpl 2b
+
+3: tst r2, #1
+2: movne ip, r3, lsr #8
+ strneh ip, [r0]
+ mov pc, lr
