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!

9 files changed, 593 insertions, 0 deletions

diff --git a/arch/v850/lib/Makefile b/arch/v850/lib/Makefile
new file mode 100644
index 00000000000..1c78b728a11
--- /dev/null
+++ b/arch/v850/lib/Makefile
@@ -0,0 +1,6 @@
+#
+# arch/v850/lib/Makefile
+#
+
+lib-y  = ashrdi3.o ashldi3.o lshrdi3.o muldi3.o negdi2.o \
+	 checksum.o memcpy.o memset.o
diff --git a/arch/v850/lib/ashldi3.c b/arch/v850/lib/ashldi3.c
new file mode 100644
index 00000000000..9e792d53f0e
--- /dev/null
+++ b/arch/v850/lib/ashldi3.c
@@ -0,0 +1,62 @@
+/* ashldi3.c extracted from gcc-2.95.2/libgcc2.c which is: */
+/* Copyright (C) 1989, 92-98, 1999 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#define BITS_PER_UNIT 8
+
+typedef 	 int SItype	__attribute__ ((mode (SI)));
+typedef unsigned int USItype	__attribute__ ((mode (SI)));
+typedef		 int DItype	__attribute__ ((mode (DI)));
+typedef int word_type __attribute__ ((mode (__word__)));
+
+struct DIstruct {SItype high, low;};
+
+typedef union
+{
+  struct DIstruct s;
+  DItype ll;
+} DIunion;
+
+DItype
+__ashldi3 (DItype u, word_type b)
+{
+  DIunion w;
+  word_type bm;
+  DIunion uu;
+
+  if (b == 0)
+    return u;
+
+  uu.ll = u;
+
+  bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
+  if (bm <= 0)
+    {
+      w.s.low = 0;
+      w.s.high = (USItype)uu.s.low << -bm;
+    }
+  else
+    {
+      USItype carries = (USItype)uu.s.low >> bm;
+      w.s.low = (USItype)uu.s.low << b;
+      w.s.high = ((USItype)uu.s.high << b) | carries;
+    }
+
+  return w.ll;
+}
diff --git a/arch/v850/lib/ashrdi3.c b/arch/v850/lib/ashrdi3.c
new file mode 100644
index 00000000000..78efb65e315
--- /dev/null
+++ b/arch/v850/lib/ashrdi3.c
@@ -0,0 +1,63 @@
+/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
+/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#define BITS_PER_UNIT 8
+
+typedef 	 int SItype	__attribute__ ((mode (SI)));
+typedef unsigned int USItype	__attribute__ ((mode (SI)));
+typedef		 int DItype	__attribute__ ((mode (DI)));
+typedef int word_type __attribute__ ((mode (__word__)));
+
+struct DIstruct {SItype high, low;};
+
+typedef union
+{
+  struct DIstruct s;
+  DItype ll;
+} DIunion;
+
+DItype
+__ashrdi3 (DItype u, word_type b)
+{
+  DIunion w;
+  word_type bm;
+  DIunion uu;
+
+  if (b == 0)
+    return u;
+
+  uu.ll = u;
+
+  bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
+  if (bm <= 0)
+    {
+      /* w.s.high = 1..1 or 0..0 */
+      w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1);
+      w.s.low = uu.s.high >> -bm;
+    }
+  else
+    {
+      USItype carries = (USItype)uu.s.high << bm;
+      w.s.high = uu.s.high >> b;
+      w.s.low = ((USItype)uu.s.low >> b) | carries;
+    }
+
+  return w.ll;
+}
diff --git a/arch/v850/lib/checksum.c b/arch/v850/lib/checksum.c
new file mode 100644
index 00000000000..d308b724c02
--- /dev/null
+++ b/arch/v850/lib/checksum.c
@@ -0,0 +1,154 @@
+/*
+ * INET		An implementation of the TCP/IP protocol suite for the LINUX
+ *		operating system.  INET is implemented using the  BSD Socket
+ *		interface as the means of communication with the user level.
+ *
+ *		MIPS specific IP/TCP/UDP checksumming routines
+ *
+ * Authors:	Ralf Baechle, <ralf@waldorf-gmbh.de>
+ *		Lots of code moved from tcp.c and ip.c; see those files
+ *		for more names.
+ *
+ *		This program is free software; you can redistribute it and/or
+ *		modify it under the terms of the GNU General Public License
+ *		as published by the Free Software Foundation; either version
+ *		2 of the License, or (at your option) any later version.
+ *
+ * $Id: checksum.c,v 1.1 2002/09/28 14:58:40 gerg Exp $
+ */
+#include <net/checksum.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <asm/byteorder.h>
+#include <asm/string.h>
+#include <asm/uaccess.h>
+
+static inline unsigned short from32to16 (unsigned long sum)
+{
+	unsigned int result;
+	/*
+			        %0		%1
+	      hsw %1, %0	H     L		L     H
+	      add %1, %0	H     L		H+L+C H+L
+	*/
+	asm ("hsw %1, %0; add %1, %0" : "=&r" (result) : "r" (sum));
+	return result >> 16;
+}
+
+static inline unsigned int do_csum(const unsigned char * buff, int len)
+{
+	int odd, count;
+	unsigned int result = 0;
+
+	if (len <= 0)
+		goto out;
+	odd = 1 & (unsigned long) buff;
+	if (odd) {
+		result = be16_to_cpu(*buff);
+		len--;
+		buff++;
+	}
+	count = len >> 1;		/* nr of 16-bit words.. */
+	if (count) {
+		if (2 & (unsigned long) buff) {
+			result += *(unsigned short *) buff;
+			count--;
+			len -= 2;
+			buff += 2;
+		}
+		count >>= 1;		/* nr of 32-bit words.. */
+		if (count) {
+			unsigned int carry = 0;
+			do {
+				unsigned int w = *(unsigned int *) buff;
+				count--;
+				buff += 4;
+				result += carry;
+				result += w;
+				carry = (w > result);
+			} while (count);
+			result += carry;
+			result = (result & 0xffff) + (result >> 16);
+		}
+		if (len & 2) {
+			result += *(unsigned short *) buff;
+			buff += 2;
+		}
+	}
+	if (len & 1)
+		result += le16_to_cpu(*buff);
+	result = from32to16(result);
+	if (odd)
+		result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
+out:
+	return result;
+}
+
+/*
+ *	This is a version of ip_compute_csum() optimized for IP headers,
+ *	which always checksum on 4 octet boundaries.
+ */
+unsigned short ip_fast_csum(unsigned char * iph, unsigned int ihl)
+{
+	return ~do_csum(iph,ihl*4);
+}
+
+/*
+ * this routine is used for miscellaneous IP-like checksums, mainly
+ * in icmp.c
+ */
+unsigned short ip_compute_csum(const unsigned char * buff, int len)
+{
+	return ~do_csum(buff,len);
+}
+
+/*
+ * computes a partial checksum, e.g. for TCP/UDP fragments
+ */
+unsigned int csum_partial(const unsigned char *buff, int len, unsigned int sum)
+{
+	unsigned int result = do_csum(buff, len);
+
+	/* add in old sum, and carry.. */
+	result += sum;
+	if(sum > result)
+		result += 1;
+	return result;
+}
+
+EXPORT_SYMBOL(csum_partial);
+
+/*
+ * copy while checksumming, otherwise like csum_partial
+ */
+unsigned int csum_partial_copy(const unsigned char *src, unsigned char *dst,
+                               int len, unsigned int sum)
+{
+	/*
+	 * It's 2:30 am and I don't feel like doing it real ...
+	 * This is lots slower than the real thing (tm)
+	 */
+	sum = csum_partial(src, len, sum);
+	memcpy(dst, src, len);
+
+	return sum;
+}
+
+/*
+ * Copy from userspace and compute checksum.  If we catch an exception
+ * then zero the rest of the buffer.
+ */
+unsigned int csum_partial_copy_from_user (const unsigned char *src, unsigned char *dst,
+                                          int len, unsigned int sum,
+                                          int *err_ptr)
+{
+	int missing;
+
+	missing = copy_from_user(dst, src, len);
+	if (missing) {
+		memset(dst + len - missing, 0, missing);
+		*err_ptr = -EFAULT;
+	}
+		
+	return csum_partial(dst, len, sum);
+}
diff --git a/arch/v850/lib/lshrdi3.c b/arch/v850/lib/lshrdi3.c
new file mode 100644
index 00000000000..93b1cb6fdee
--- /dev/null
+++ b/arch/v850/lib/lshrdi3.c
@@ -0,0 +1,62 @@
+/* lshrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
+/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#define BITS_PER_UNIT 8
+
+typedef 	 int SItype	__attribute__ ((mode (SI)));
+typedef unsigned int USItype	__attribute__ ((mode (SI)));
+typedef		 int DItype	__attribute__ ((mode (DI)));
+typedef int word_type __attribute__ ((mode (__word__)));
+
+struct DIstruct {SItype high, low;};
+
+typedef union
+{
+  struct DIstruct s;
+  DItype ll;
+} DIunion;
+
+DItype
+__lshrdi3 (DItype u, word_type b)
+{
+  DIunion w;
+  word_type bm;
+  DIunion uu;
+
+  if (b == 0)
+    return u;
+
+  uu.ll = u;
+
+  bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
+  if (bm <= 0)
+    {
+      w.s.high = 0;
+      w.s.low = (USItype)uu.s.high >> -bm;
+    }
+  else
+    {
+      USItype carries = (USItype)uu.s.high << bm;
+      w.s.high = (USItype)uu.s.high >> b;
+      w.s.low = ((USItype)uu.s.low >> b) | carries;
+    }
+
+  return w.ll;
+}
diff --git a/arch/v850/lib/memcpy.c b/arch/v850/lib/memcpy.c
new file mode 100644
index 00000000000..492847b3e61
--- /dev/null
+++ b/arch/v850/lib/memcpy.c
@@ -0,0 +1,92 @@
+/*
+ * arch/v850/lib/memcpy.c -- Memory copying
+ *
+ *  Copyright (C) 2001,02  NEC Corporation
+ *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ */
+
+#include <linux/types.h>
+#include <asm/string.h>
+
+#define CHUNK_SIZE		32 /* bytes */
+#define CHUNK_ALIGNED(addr)	(((unsigned long)addr & 0x3) == 0)
+
+/* Note that this macro uses 8 call-clobbered registers (not including
+   R1), which are few enough so that the following functions don't need
+   to spill anything to memory.  It also uses R1, which is nominally
+   reserved for the assembler, but here it should be OK.  */
+#define COPY_CHUNK(src, dst)			\
+   asm ("mov %0, ep;"				\
+	"sld.w 0[ep], r1; sld.w 4[ep], r12;"	\
+	"sld.w 8[ep], r13; sld.w 12[ep], r14;"	\
+	"sld.w 16[ep], r15; sld.w 20[ep], r17;"	\
+	"sld.w 24[ep], r18; sld.w 28[ep], r19;"	\
+	"mov %1, ep;"				\
+	"sst.w r1, 0[ep]; sst.w r12, 4[ep];"	\
+	"sst.w r13, 8[ep]; sst.w r14, 12[ep];"	\
+	"sst.w r15, 16[ep]; sst.w r17, 20[ep];"	\
+	"sst.w r18, 24[ep]; sst.w r19, 28[ep]"	\
+	:: "r" (src), "r" (dst)			\
+	: "r1", "r12", "r13", "r14", "r15",	\
+	  "r17", "r18", "r19", "ep", "memory");
+
+void *memcpy (void *dst, const void *src, __kernel_size_t size)
+{
+	char *_dst = dst;
+	const char *_src = src;
+
+	if (size >= CHUNK_SIZE && CHUNK_ALIGNED(_src) && CHUNK_ALIGNED(_dst)) {
+		/* Copy large blocks efficiently.  */
+		unsigned count;
+		for (count = size / CHUNK_SIZE; count; count--) {
+			COPY_CHUNK (_src, _dst);
+			_src += CHUNK_SIZE;
+			_dst += CHUNK_SIZE;
+		}
+		size %= CHUNK_SIZE;
+	}
+
+	if (size > 0)
+		do
+			*_dst++ = *_src++;
+		while (--size);
+
+	return dst;
+}
+
+void *memmove (void *dst, const void *src, __kernel_size_t size)
+{
+	if ((unsigned long)dst < (unsigned long)src
+	    || (unsigned long)src + size < (unsigned long)dst)
+		return memcpy (dst, src, size);
+	else {
+		char *_dst = dst + size;
+		const char *_src = src + size;
+
+		if (size >= CHUNK_SIZE
+		    && CHUNK_ALIGNED (_src) && CHUNK_ALIGNED (_dst))
+		{
+			/* Copy large blocks efficiently.  */
+			unsigned count;
+			for (count = size / CHUNK_SIZE; count; count--) {
+				_src -= CHUNK_SIZE;
+				_dst -= CHUNK_SIZE;
+				COPY_CHUNK (_src, _dst);
+			}
+			size %= CHUNK_SIZE;
+		}
+
+		if (size > 0)
+			do
+				*--_dst = *--_src;
+			while (--size);
+
+		return _dst;
+	}
+}
diff --git a/arch/v850/lib/memset.c b/arch/v850/lib/memset.c
new file mode 100644
index 00000000000..d1b2ad821b1
--- /dev/null
+++ b/arch/v850/lib/memset.c
@@ -0,0 +1,68 @@
+/*
+ * arch/v850/lib/memset.c -- Memory initialization
+ *
+ *  Copyright (C) 2001,02,04  NEC Corporation
+ *  Copyright (C) 2001,02,04  Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ */
+
+#include <linux/types.h>
+
+void *memset (void *dst, int val, __kernel_size_t count)
+{
+	if (count) {
+		register unsigned loop;
+		register void *ptr asm ("ep") = dst;
+
+		/* replicate VAL into a long.  */
+		val &= 0xff;
+		val |= val << 8;
+		val |= val << 16;
+
+		/* copy initial unaligned bytes.  */
+		if ((long)ptr & 1) {
+			*(char *)ptr = val;
+			ptr = (void *)((char *)ptr + 1);
+			count--;
+		}
+		if (count > 2 && ((long)ptr & 2)) {
+			*(short *)ptr = val;
+			ptr = (void *)((short *)ptr + 1);
+			count -= 2;
+		}
+
+		/* 32-byte copying loop.  */
+		for (loop = count / 32; loop; loop--) {
+			asm ("sst.w %0, 0[ep]; sst.w %0, 4[ep];"
+			     "sst.w %0, 8[ep]; sst.w %0, 12[ep];"
+			     "sst.w %0, 16[ep]; sst.w %0, 20[ep];"
+			     "sst.w %0, 24[ep]; sst.w %0, 28[ep]"
+			     :: "r" (val) : "memory");
+			ptr += 32;
+		}
+		count %= 32;
+
+		/* long copying loop.  */
+		for (loop = count / 4; loop; loop--) {
+			*(long *)ptr = val;
+			ptr = (void *)((long *)ptr + 1);
+		}
+		count %= 4;
+
+		/* finish up with any trailing bytes.  */
+		if (count & 2) {
+			*(short *)ptr = val;
+			ptr = (void *)((short *)ptr + 1);
+		}
+		if (count & 1) {
+			*(char *)ptr = val;
+		}
+	}
+
+	return dst;
+}
diff --git a/arch/v850/lib/muldi3.c b/arch/v850/lib/muldi3.c
new file mode 100644
index 00000000000..277ca25c82c
--- /dev/null
+++ b/arch/v850/lib/muldi3.c
@@ -0,0 +1,61 @@
+/* muldi3.c extracted from gcc-2.7.2.3/libgcc2.c and 
+			   gcc-2.7.2.3/longlong.h which is: */
+/* Copyright (C) 1989, 1992, 1993, 1994, 1995, 2001 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#define umul_ppmm(w1, w0, u, v) \
+  __asm__ ("mulu %3, %0, %1"						\
+           : "=r" ((USItype)(w0)),					\
+             "=r" ((USItype)(w1))					\
+           : "%0" ((USItype)(u)),					\
+             "r" ((USItype)(v)))
+
+#define __umulsidi3(u, v) \
+  ({DIunion __w;							\
+    umul_ppmm (__w.s.high, __w.s.low, u, v);				\
+    __w.ll; })
+
+typedef 	 int SItype	__attribute__ ((mode (SI)));
+typedef unsigned int USItype	__attribute__ ((mode (SI)));
+typedef		 int DItype	__attribute__ ((mode (DI)));
+typedef int word_type __attribute__ ((mode (__word__)));
+
+struct DIstruct {SItype high, low;};
+
+typedef union
+{
+  struct DIstruct s;
+  DItype ll;
+} DIunion;
+
+DItype
+__muldi3 (DItype u, DItype v)
+{
+  DIunion w;
+  DIunion uu, vv;
+
+  uu.ll = u,
+  vv.ll = v;
+
+  w.ll = __umulsidi3 (uu.s.low, vv.s.low);
+  w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high
+	       + (USItype) uu.s.high * (USItype) vv.s.low);
+
+  return w.ll;
+}
diff --git a/arch/v850/lib/negdi2.c b/arch/v850/lib/negdi2.c
new file mode 100644
index 00000000000..571e04fc619
--- /dev/null
+++ b/arch/v850/lib/negdi2.c
@@ -0,0 +1,25 @@
+/*
+ * arch/v850/lib/negdi2.c -- 64-bit negation
+ *
+ *  Copyright (C) 2001  NEC Corporation
+ *  Copyright (C) 2001  Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License.  See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ */
+
+typedef		 int DItype	__attribute__ ((mode (DI)));
+
+DItype __negdi2 (DItype x)
+{
+	__asm__ __volatile__
+		("not	r6, r10;"
+		 "add	1, r10;"
+		 "setf	c, r6;"
+		 "not	r7, r11;"
+		 "add	r6, r11"
+		 ::: "r6", "r7", "r10", "r11");
+}