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, 195 insertions, 0 deletions

diff --git a/drivers/scsi/oktagon_io.S b/drivers/scsi/oktagon_io.S
new file mode 100644
index 000000000000..08ce8d80d8f5
--- /dev/null
+++ b/drivers/scsi/oktagon_io.S
@@ -0,0 +1,195 @@
+/* -*- mode: asm -*-
+ * Due to problems while transferring data I've put these routines as assembly
+ * code.
+ * Since I'm no PPC assembler guru, the code is just the assembler version of
+
+int oktag_to_io(long *paddr,long *addr,long len)
+{
+  long *addr2 = addr;
+  for(len=(len+sizeof(long)-1)/sizeof(long);len--;)
+    *paddr = *addr2++;
+  return addr2 - addr;
+}
+
+int oktag_from_io(long *addr,long *paddr,long len)
+{
+  long *addr2 = addr;
+  for(len=(len+sizeof(long)-1)/sizeof(long);len--;)
+    *addr2++ = *paddr;
+  return addr2 - addr;
+}
+
+ * assembled using gcc -O2 -S, with two exception catch points where data
+ * is moved to/from the IO register.
+ */
+
+#include <linux/config.h>
+
+#ifdef CONFIG_APUS
+
+	.file	"oktagon_io.c"
+
+gcc2_compiled.:
+/*
+	.section ".text"
+*/
+	.align 2
+	.globl oktag_to_io
+	.type	 oktag_to_io,@function
+oktag_to_io:
+	addi 5,5,3
+	srwi 5,5,2
+	cmpwi 1,5,0
+	mr 9,3
+	mr 3,4
+	addi 5,5,-1
+	bc 12,6,.L3
+.L5:
+	cmpwi 1,5,0
+	lwz 0,0(3)
+	addi 3,3,4
+	addi 5,5,-1
+exp1:	stw 0,0(9)
+	bc 4,6,.L5
+.L3:
+ret1:	subf 3,4,3
+	srawi 3,3,2
+	blr
+.Lfe1:
+	.size	 oktag_to_io,.Lfe1-oktag_to_io
+	.align 2
+	.globl oktag_from_io
+	.type	 oktag_from_io,@function
+oktag_from_io:
+	addi 5,5,3
+	srwi 5,5,2
+	cmpwi 1,5,0
+	mr 9,3
+	addi 5,5,-1
+	bc 12,6,.L9
+.L11:
+	cmpwi 1,5,0
+exp2:	lwz 0,0(4)
+	addi 5,5,-1
+	stw 0,0(3)
+	addi 3,3,4
+	bc 4,6,.L11
+.L9:
+ret2:	subf 3,9,3
+	srawi 3,3,2
+	blr
+.Lfe2:
+	.size	 oktag_from_io,.Lfe2-oktag_from_io
+	.ident	"GCC: (GNU) egcs-2.90.29 980515 (egcs-1.0.3 release)"
+
+/*
+ * Exception table.
+ * Second longword shows where to jump when an exception at the addr the first
+ * longword is pointing to is caught.
+ */
+
+.section __ex_table,"a"
+	.align	2
+oktagon_except:
+	.long	exp1,ret1
+	.long	exp2,ret2
+
+#else
+
+/*
+The code which follows is for 680x0 based assembler and is meant for
+Linux/m68k. It was created by cross compiling the code using the
+instructions given above. I then added the four labels used in the
+exception handler table at the bottom of this file.
+- Kevin <kcozens@interlog.com>
+*/
+
+#ifdef CONFIG_AMIGA
+
+	.file	"oktagon_io.c"
+	.version	"01.01"
+gcc2_compiled.:
+.text
+	.align 	2
+.globl oktag_to_io
+	.type	 oktag_to_io,@function
+oktag_to_io:
+	link.w %a6,#0
+	move.l %d2,-(%sp)
+	move.l 8(%a6),%a1
+	move.l 12(%a6),%d1
+	move.l %d1,%a0
+	move.l 16(%a6),%d0
+	addq.l #3,%d0
+	lsr.l #2,%d0
+	subq.l #1,%d0
+	moveq.l #-1,%d2
+	cmp.l %d0,%d2
+	jbeq .L3
+.L5:
+exp1:
+	move.l (%a0)+,(%a1)
+	dbra %d0,.L5
+	clr.w %d0
+	subq.l #1,%d0
+	jbcc .L5
+.L3:
+ret1:
+	move.l %a0,%d0
+	sub.l %d1,%d0
+	asr.l #2,%d0
+	move.l -4(%a6),%d2
+	unlk %a6
+	rts
+
+.Lfe1:
+	.size	 oktag_to_io,.Lfe1-oktag_to_io
+	.align 	2
+.globl oktag_from_io
+	.type	 oktag_from_io,@function
+oktag_from_io:
+	link.w %a6,#0
+	move.l %d2,-(%sp)
+	move.l 8(%a6),%d1
+	move.l 12(%a6),%a1
+	move.l %d1,%a0
+	move.l 16(%a6),%d0
+	addq.l #3,%d0
+	lsr.l #2,%d0
+	subq.l #1,%d0
+	moveq.l #-1,%d2
+	cmp.l %d0,%d2
+	jbeq .L9
+.L11:
+exp2:
+	move.l (%a1),(%a0)+
+	dbra %d0,.L11
+	clr.w %d0
+	subq.l #1,%d0
+	jbcc .L11
+.L9:
+ret2:
+	move.l %a0,%d0
+	sub.l %d1,%d0
+	asr.l #2,%d0
+	move.l -4(%a6),%d2
+	unlk %a6
+	rts
+.Lfe2:
+	.size	 oktag_from_io,.Lfe2-oktag_from_io
+	.ident	"GCC: (GNU) 2.7.2.1"
+
+/*
+ * Exception table.
+ * Second longword shows where to jump when an exception at the addr the first
+ * longword is pointing to is caught.
+ */
+
+.section __ex_table,"a"
+	.align	2
+oktagon_except:
+	.long	exp1,ret1
+	.long	exp2,ret2
+
+#endif
+#endif