151 lines
6.0 KiB
C
151 lines
6.0 KiB
C
/* x86 fat binary initializers.
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THE FUNCTIONS AND VARIABLES IN THIS FILE ARE FOR INTERNAL USE ONLY.
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THEY'RE ALMOST CERTAIN TO BE SUBJECT TO INCOMPATIBLE CHANGES OR DISAPPEAR
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COMPLETELY IN FUTURE GNU MP RELEASES.
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Copyright 2003, 2004 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include <stdio.h> /* for printf */
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#include <stdlib.h> /* for getenv */
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#include <string.h>
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#include "mpir.h"
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#include "gmp-impl.h"
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/* Change this to "#define TRACE(x) x" for some traces. */
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#define TRACE(x)
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/* fat_entry.asm */
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long __gmpn_cpuid __GMP_PROTO ((char dst[12], int id));
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typedef DECL_preinv_divrem_1 ((*preinv_divrem_1_t));
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typedef DECL_preinv_mod_1 ((*preinv_mod_1_t));
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struct cpuvec_t __gmpn_cpuvec = {
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__MPN(add_n_init),
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__MPN(addmul_1_init),
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__MPN(copyd_init),
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__MPN(copyi_init),
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__MPN(divexact_1_init),
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__MPN(divexact_by3c_init),
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__MPN(divexact_byfobm1_init),
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__MPN(divrem_1_init),
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__MPN(divrem_2_init),
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__MPN(divrem_euclidean_qr_1_init),
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__MPN(divrem_euclidean_qr_2_init),
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__MPN(gcd_1_init),
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__MPN(lshift_init),
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__MPN(mod_1_init),
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__MPN(mod_34lsub1_init),
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__MPN(modexact_1c_odd_init),
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__MPN(mul_1_init),
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__MPN(mul_basecase_init),
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__MPN(preinv_divrem_1_init),
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__MPN(preinv_mod_1_init),
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__MPN(redc_1_init),
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__MPN(rshift_init),
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__MPN(sqr_basecase_init),
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__MPN(sub_n_init),
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__MPN(submul_1_init),
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__MPN(sumdiff_n_init),
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0
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};
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/* The following setups start with generic x86, then overwrite with
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specifics for a chip, and higher versions of that chip.
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The arrangement of the setups here will normally be the same as the $path
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selections in configure.in for the respective chips.
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This code is reentrant and thread safe. We always calculate the same
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decided_cpuvec, so if two copies of the code are running it doesn't
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matter which completes first, both write the same to __gmpn_cpuvec.
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We need to go via decided_cpuvec because if one thread has completed
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__gmpn_cpuvec then it may be making use of the threshold values in that
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vector. If another thread is still running __gmpn_cpuvec_init then we
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don't want it to write different values to those fields since some of the
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asm routines only operate correctly up to their own defined threshold,
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not an arbitrary value. */
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#define CONFIG_GUESS 0
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#define CONFIG_GUESS_32BIT 0
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#define CONFIG_GUESS_64BIT 0
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#define FAT32 1
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#define FAT64 0
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#define INFAT 1
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#define CPUSETUP_pentium CPUVEC_SETUP_pentium
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#define CPUSETUP_pentiummmx CPUVEC_SETUP_pentium;CPUVEC_SETUP_pentium_mmx
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#define CPUSETUP_pentiumpro CPUVEC_SETUP_p6
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#define CPUSETUP_pentium2 CPUVEC_SETUP_p6;CPUVEC_SETUP_p6_mmx
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#define CPUSETUP_pentium3 CPUVEC_SETUP_p6;CPUVEC_SETUP_p6_mmx;CPUVEC_SETUP_p6_p3mmx
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#define CPUSETUP_core CPUVEC_SETUP_p6;CPUVEC_SETUP_p6_mmx;CPUVEC_SETUP_p6_p3mmx
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#define CPUSETUP_core2 CPUVEC_SETUP_core2
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#define CPUSETUP_penryn CPUVEC_SETUP_p6;CPUVEC_SETUP_p6_mmx;CPUVEC_SETUP_p6_p3mmx
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#define CPUSETUP_nehalem CPUVEC_SETUP_nehalem
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#define CPUSETUP_westmere CPUVEC_SETUP_nehalem
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#define CPUSETUP_sandybridge CPUVEC_SETUP_nehalem
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#define CPUSETUP_atom CPUVEC_SETUP_p6;CPUVEC_SETUP_p6_mmx;CPUVEC_SETUP_p6_p3mmx
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#define CPUSETUP_nano CPUVEC_SETUP_p6;CPUVEC_SETUP_p6_mmx;CPUVEC_SETUP_p6_p3mmx
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#define CPUSETUP_pentium4 CPUVEC_SETUP_pentium4;CPUVEC_SETUP_pentium4_mmx;CPUVEC_SETUP_pentium4_sse2
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#define CPUSETUP_prescott CPUVEC_SETUP_pentium4;CPUVEC_SETUP_pentium4_mmx;CPUVEC_SETUP_pentium4_sse2
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#define CPUSETUP_k5 do{}while(0)
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#define CPUSETUP_k6 CPUVEC_SETUP_k6;CPUVEC_SETUP_k6_mmx
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#define CPUSETUP_k62 CPUVEC_SETUP_k6;CPUVEC_SETUP_k6_mmx;CPUVEC_SETUP_k6_k62mmx
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#define CPUSETUP_k63 CPUVEC_SETUP_k6;CPUVEC_SETUP_k6_mmx;CPUVEC_SETUP_k6_k62mmx
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#define CPUSETUP_k7 CPUVEC_SETUP_k7;CPUVEC_SETUP_k7_mmx
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#define CPUSETUP_k8 CPUVEC_SETUP_k7;CPUVEC_SETUP_k7_mmx;CPUVEC_SETUP_k7_mmx_k8
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#define CPUSETUP_k10 CPUVEC_SETUP_k7;CPUVEC_SETUP_k7_mmx;CPUVEC_SETUP_k7_mmx_k8;CPUVEC_SETUP_k7_mmx_k8_k10
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#define CPUSETUP_k102 CPUVEC_SETUP_k7;CPUVEC_SETUP_k7_mmx;CPUVEC_SETUP_k7_mmx_k8;CPUVEC_SETUP_k7_mmx_k8_k10;CPUVEC_SETUP_k7_mmx_k8_k10_k102
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#define CPUSETUP_k103 CPUVEC_SETUP_k7;CPUVEC_SETUP_k7_mmx;CPUVEC_SETUP_k7_mmx_k8;CPUVEC_SETUP_k7_mmx_k8_k10;CPUVEC_SETUP_k7_mmx_k8_k10_k102
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#define CPUSETUP_bobcat CPUVEC_SETUP_k7;CPUVEC_SETUP_k7_mmx;CPUVEC_SETUP_k7_mmx_k8;CPUVEC_SETUP_k7_mmx_k8_k10;CPUVEC_SETUP_k7_mmx_k8_k10_k102
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#define CPUSETUP_viac3 do{}while(0)
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#define CPUSETUP_viac32 do{}while(0)
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#include "cpuid.c"
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void
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__gmpn_cpuvec_init (void)
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{
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struct cpuvec_t decided_cpuvec;
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TRACE (printf ("__gmpn_cpuvec_init:\n"));
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__gmpn_cpu(&decided_cpuvec);
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/* There's no x86 generic mpn_preinv_divrem_1 or mpn_preinv_mod_1.
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Instead default to the plain versions from whichever CPU we detected.
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The function arguments are compatible, no need for any glue code. */
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if (decided_cpuvec.preinv_divrem_1 == NULL)
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decided_cpuvec.preinv_divrem_1 =(preinv_divrem_1_t)decided_cpuvec.divrem_1;
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if (decided_cpuvec.preinv_mod_1 == NULL)
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decided_cpuvec.preinv_mod_1 =(preinv_mod_1_t) decided_cpuvec.mod_1;
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ASSERT_CPUVEC (decided_cpuvec);
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CPUVEC_INSTALL (decided_cpuvec);
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/* Set this once the threshold fields are ready.
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Use volatile to prevent it getting moved. */
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((volatile struct cpuvec_t *) &__gmpn_cpuvec)->initialized = 1;
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}
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