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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/v850/lib
downloadlinux-2.6.34-ux500-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz
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!
Diffstat (limited to 'arch/v850/lib')
-rw-r--r--arch/v850/lib/Makefile6
-rw-r--r--arch/v850/lib/ashldi3.c62
-rw-r--r--arch/v850/lib/ashrdi3.c63
-rw-r--r--arch/v850/lib/checksum.c154
-rw-r--r--arch/v850/lib/lshrdi3.c62
-rw-r--r--arch/v850/lib/memcpy.c92
-rw-r--r--arch/v850/lib/memset.c68
-rw-r--r--arch/v850/lib/muldi3.c61
-rw-r--r--arch/v850/lib/negdi2.c25
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");
+}