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Diffstat (limited to 'volk/gen/make_cpuid_c.py')
-rw-r--r-- | volk/gen/make_cpuid_c.py | 239 |
1 files changed, 0 insertions, 239 deletions
diff --git a/volk/gen/make_cpuid_c.py b/volk/gen/make_cpuid_c.py deleted file mode 100644 index e30d643cb..000000000 --- a/volk/gen/make_cpuid_c.py +++ /dev/null @@ -1,239 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2011 Free Software Foundation, Inc. -# -# This file is part of GNU Radio -# -# GNU Radio 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 3, or (at your option) -# any later version. -# -# GNU Radio 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 Radio; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# - -from xml.dom import minidom - -HEADER_TEMPL = """\ -/*this file is auto_generated by volk_register.py*/ - -#include <volk/volk_cpu.h> -#include <volk/volk_config_fixed.h> - -struct VOLK_CPU volk_cpu; - -#if defined(__i386__) || defined(__x86_64__) || defined(_M_IX86) || defined(_M_X64) -# define VOLK_CPU_x86 -#endif - -#if defined(VOLK_CPU_x86) - -//implement get cpuid for gcc compilers using a copy of cpuid.h -#if defined(__GNUC__) -#include <gcc_x86_cpuid.h> -#define cpuid_x86(op, r) __get_cpuid(op, (unsigned int *)r+0, (unsigned int *)r+1, (unsigned int *)r+2, (unsigned int *)r+3) - -//implement get cpuid for MSVC compilers using __cpuid intrinsic -#elif defined(_MSC_VER) -#include <intrin.h> -#define cpuid_x86(op, r) __cpuid(r, op) - -#else -#error "A get cpuid for volk is not available on this compiler..." -#endif - -static inline unsigned int cpuid_eax(unsigned int op) { - int regs[4]; - cpuid_x86 (op, regs); - return regs[0]; -} - -static inline unsigned int cpuid_ebx(unsigned int op) { - int regs[4]; - cpuid_x86 (op, regs); - return regs[1]; -} - -static inline unsigned int cpuid_ecx(unsigned int op) { - int regs[4]; - cpuid_x86 (op, regs); - return regs[2]; -} - -static inline unsigned int cpuid_edx(unsigned int op) { - int regs[4]; - cpuid_x86 (op, regs); - return regs[3]; -} -#endif - -""" - -def make_cpuid_c(dom) : - tempstring = HEADER_TEMPL; - - for domarch in dom: - if str(domarch.attributes["type"].value) == "x86": - if "no_test" in domarch.attributes.keys(): - no_test = str(domarch.attributes["no_test"].value); - if no_test == "true": - no_test = True; - else: - no_test = False; - else: - no_test = False; - arch = str(domarch.attributes["name"].value); - op = domarch.getElementsByTagName("op"); - if op: - op = str(op[0].firstChild.data); - reg = domarch.getElementsByTagName("reg"); - if reg: - reg = str(reg[0].firstChild.data); - shift = domarch.getElementsByTagName("shift"); - if shift: - shift = str(shift[0].firstChild.data); - val = domarch.getElementsByTagName("val"); - if val: - val = str(val[0].firstChild.data); - - if no_test: - tempstring = tempstring + """\ -int i_can_has_%s () { -#if defined(VOLK_CPU_x86) - return 1; -#else - return 0; -#endif -} - -""" % (arch) - - elif op == "1": - tempstring = tempstring + """\ -int i_can_has_%s () { -#if defined(VOLK_CPU_x86) - unsigned int e%sx = cpuid_e%sx (%s); - return ((e%sx >> %s) & 1) == %s; -#else - return 0; -#endif -} - -""" % (arch, reg, reg, op, reg, shift, val) - - elif op == "0x80000001": - tempstring = tempstring + """\ -int i_can_has_%s () { -#if defined(VOLK_CPU_x86) - unsigned int extended_fct_count = cpuid_eax(0x80000000); - if (extended_fct_count < 0x80000001) - return %s^1; - unsigned int extended_features = cpuid_e%sx (%s); - return ((extended_features >> %s) & 1) == %s; -#else - return 0; -#endif -} - -""" % (arch, val, reg, op, shift, val) - - elif str(domarch.attributes["type"].value) == "powerpc": - arch = str(domarch.attributes["name"].value); - tempstring = tempstring + """\ -int i_can_has_%s () { -#ifdef __PPC__ - return 1; -#else - return 0; -#endif -} - -""" % (arch) - - elif str(domarch.attributes["type"].value) == "arm": - arch = str(domarch.attributes["name"].value); - tempstring = tempstring + """\ -#if defined(__arm__) && defined(__linux__) -#include <asm/hwcap.h> -#include <linux/auxvec.h> -#include <stdio.h> -#define LOOK_FOR_NEON -#endif - -int i_can_has_%s () { -//it's linux-specific, but if you're compiling libvolk for NEON -//on Windows you have other problems - -#ifdef LOOK_FOR_NEON - FILE *auxvec_f; - unsigned long auxvec[2]; - unsigned int found_neon = 0; - auxvec_f = fopen("/proc/self/auxv", "rb"); - if(!auxvec_f) return 0; - - //so auxv is basically 32b of ID and 32b of value - //so it goes like this - while(!found_neon && auxvec_f) { - fread(auxvec, sizeof(unsigned long), 2, auxvec_f); - if((auxvec[0] == AT_HWCAP) && (auxvec[1] & HWCAP_NEON)) - found_neon = 1; - } - - fclose(auxvec_f); - return found_neon; - -#else - return 0; -#endif -} - -""" % (arch) - - elif str(domarch.attributes["type"].value) == "all": - arch = str(domarch.attributes["name"].value); - tempstring = tempstring + """\ -int i_can_has_%s () { - return 1; -} - -""" % (arch) - else: - arch = str(domarch.attributes["name"].value); - tempstring = tempstring + """\ -int i_can_has_%s () { - return 0; -} - -""" % (arch) - - tempstring = tempstring + "void volk_cpu_init() {\n"; - for domarch in dom: - arch = str(domarch.attributes["name"].value); - tempstring = tempstring + " volk_cpu.has_" + arch + " = &i_can_has_" + arch + ";\n" - tempstring = tempstring + "}\n\n" - - tempstring = tempstring + "unsigned int volk_get_lvarch() {\n"; - tempstring = tempstring + " unsigned int retval = 0;\n" - tempstring = tempstring + " volk_cpu_init();\n" - for domarch in dom: - arch = str(domarch.attributes["name"].value); - tempstring = tempstring + " retval += volk_cpu.has_" + arch + "() << LV_" + arch.swapcase() + ";\n" - tempstring = tempstring + " return retval;\n" - tempstring = tempstring + "}\n\n" - - return tempstring; - - - - - - - |