From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: 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! --- arch/v850/lib/Makefile | 6 ++ arch/v850/lib/ashldi3.c | 62 +++++++++++++++++++ arch/v850/lib/ashrdi3.c | 63 +++++++++++++++++++ arch/v850/lib/checksum.c | 154 +++++++++++++++++++++++++++++++++++++++++++++++ arch/v850/lib/lshrdi3.c | 62 +++++++++++++++++++ arch/v850/lib/memcpy.c | 92 ++++++++++++++++++++++++++++ arch/v850/lib/memset.c | 68 +++++++++++++++++++++ arch/v850/lib/muldi3.c | 61 +++++++++++++++++++ arch/v850/lib/negdi2.c | 25 ++++++++ 9 files changed, 593 insertions(+) create mode 100644 arch/v850/lib/Makefile create mode 100644 arch/v850/lib/ashldi3.c create mode 100644 arch/v850/lib/ashrdi3.c create mode 100644 arch/v850/lib/checksum.c create mode 100644 arch/v850/lib/lshrdi3.c create mode 100644 arch/v850/lib/memcpy.c create mode 100644 arch/v850/lib/memset.c create mode 100644 arch/v850/lib/muldi3.c create mode 100644 arch/v850/lib/negdi2.c (limited to 'arch/v850/lib') 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, + * 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 +#include +#include +#include +#include +#include + +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 + * + * 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 + */ + +#include +#include + +#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 + * + * 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 + */ + +#include + +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 + * + * 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 + */ + +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"); +} -- cgit v1.2.3-18-g5258