summaryrefslogtreecommitdiff
path: root/tools/win32build/cpuid
diff options
context:
space:
mode:
Diffstat (limited to 'tools/win32build/cpuid')
-rw-r--r--tools/win32build/cpuid/SConstruct5
-rw-r--r--tools/win32build/cpuid/cpuid.c169
-rw-r--r--tools/win32build/cpuid/cpuid.h20
-rw-r--r--tools/win32build/cpuid/test.c44
4 files changed, 0 insertions, 238 deletions
diff --git a/tools/win32build/cpuid/SConstruct b/tools/win32build/cpuid/SConstruct
deleted file mode 100644
index 3b491deb1..000000000
--- a/tools/win32build/cpuid/SConstruct
+++ /dev/null
@@ -1,5 +0,0 @@
-env = Environment(tools = ['mingw'])
-
-#libcpuid = env.SharedLibrary('cpuid', source = ['cpuid.c'])
-#test = env.Program('test', source = ['test.c'], LIBS = libcpuid, RPATH = ['.'])
-test = env.Program('test', source = ['test.c', 'cpuid.c'])
diff --git a/tools/win32build/cpuid/cpuid.c b/tools/win32build/cpuid/cpuid.c
deleted file mode 100644
index d30d00de8..000000000
--- a/tools/win32build/cpuid/cpuid.c
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
- * TODO:
- * - test for cpuid availability
- * - test for OS support (tricky)
- */
-
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-
-#include "cpuid.h"
-
-#ifndef __GNUC__
-#error "Sorry, this code can only be compiled with gcc for now"
-#endif
-
-/*
- * SIMD: SSE 1, 2 and 3, MMX
- */
-#define CPUID_FLAG_MMX 1 << 23 /* in edx */
-#define CPUID_FLAG_SSE 1 << 25 /* in edx */
-#define CPUID_FLAG_SSE2 1 << 26 /* in edx */
-#define CPUID_FLAG_SSE3 1 << 0 /* in ecx */
-
-/*
- * long mode (AMD64 instruction set)
- */
-#define CPUID_FLAGS_LONG_MODE 1 << 29 /* in edx */
-
-/*
- * struct reprensenting the cpuid flags as put in the register
- */
-typedef struct {
- uint32_t eax;
- uint32_t ebx;
- uint32_t ecx;
- uint32_t edx;
-} cpuid_t;
-
-/*
- * Union to read bytes in 32 (intel) bits registers
- */
-union _le_reg {
- uint8_t ccnt[4];
- uint32_t reg;
-} __attribute__ ((packed));
-typedef union _le_reg le_reg_t ;
-
-/*
- * can_cpuid and read_cpuid are the two only functions using asm
- */
-static int can_cpuid(void)
-{
- int has_cpuid = 0 ;
-
- /*
- * See intel doc on cpuid (pdf)
- */
- asm volatile (
- "pushfl \n\t"
- "popl %%eax \n\t"
- "movl %%eax, %%ecx \n\t"
- "xorl $0x200000, %%eax \n\t"
- "pushl %%eax \n\t"
- "popfl \n\t"
- "pushfl \n\t"
- "popl %%eax \n\t"
- "xorl %%ecx, %%eax \n\t"
- "andl $0x200000, %%eax \n\t"
- "movl %%eax,%0 \n\t"
- :"=m" (has_cpuid)
- : /*no input*/
- : "eax","ecx","cc");
-
- return (has_cpuid != 0) ;
-}
-
-/*
- * func is the "level" of cpuid. See for cpuid.txt
- */
-static cpuid_t read_cpuid(unsigned int func)
-{
- cpuid_t res;
-
- /* we save ebx because it is used when compiled by -fPIC */
- asm volatile(
- "pushl %%ebx \n\t" /* save %ebx */
- "cpuid \n\t"
- "movl %%ebx, %1 \n\t" /* save what cpuid just put in %ebx */
- "popl %%ebx \n\t" /* restore the old %ebx */
- : "=a"(res.eax), "=r"(res.ebx),
- "=c"(res.ecx), "=d"(res.edx)
- : "a"(func)
- : "cc");
-
- return res;
-}
-
-static uint32_t get_max_func()
-{
- cpuid_t cpuid;
-
- cpuid = read_cpuid(0);
- return cpuid.eax;
-}
-
-/*
- * vendor should have at least CPUID_VENDOR_STRING_LEN characters
- */
-static int get_vendor_string(cpuid_t cpuid, char vendor[])
-{
- int i;
- le_reg_t treg;
-
- treg.reg = cpuid.ebx;
- for (i = 0; i < 4; ++i) {
- vendor[i] = treg.ccnt[i];
- }
-
- treg.reg = cpuid.edx;
- for (i = 0; i < 4; ++i) {
- vendor[i+4] = treg.ccnt[i];
- }
-
- treg.reg = cpuid.ecx;
- for (i = 0; i < 4; ++i) {
- vendor[i+8] = treg.ccnt[i];
- }
- vendor[12] = '\0';
- return 0;
-}
-
-int cpuid_get_caps(cpu_caps_t *cpu)
-{
- cpuid_t cpuid;
- int max;
-
- memset(cpu, 0, sizeof(*cpu));
-
- if (!can_cpuid()) {
- return 0;
- }
-
- max = get_max_func();
-
- /* Read vendor string */
- cpuid = read_cpuid(0);
- get_vendor_string(cpuid, cpu->vendor);
-
- if (max < 0x00000001) {
- return 0;
- }
- cpuid = read_cpuid(0x00000001);
-
- /* We can read mmx, sse 1 2 and 3 when cpuid level >= 0x00000001 */
- if (cpuid.edx & CPUID_FLAG_MMX) {
- cpu->has_mmx = 1;
- }
- if (cpuid.edx & CPUID_FLAG_SSE) {
- cpu->has_sse = 1;
- }
- if (cpuid.edx & CPUID_FLAG_SSE2) {
- cpu->has_sse2 = 1;
- }
- if (cpuid.ecx & CPUID_FLAG_SSE3) {
- cpu->has_sse3 = 1;
- }
- return 0;
-}
diff --git a/tools/win32build/cpuid/cpuid.h b/tools/win32build/cpuid/cpuid.h
deleted file mode 100644
index dc6d2933c..000000000
--- a/tools/win32build/cpuid/cpuid.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef _GABOU_CPUID_H
-#define _GABOU_CPUID_H
-
-#include <stdlib.h>
-
-#define CPUID_VENDOR_STRING_LEN 12
-
-struct _cpu_caps {
- int has_cpuid;
- int has_mmx;
- int has_sse;
- int has_sse2;
- int has_sse3;
- char vendor[CPUID_VENDOR_STRING_LEN+1];
-};
-typedef struct _cpu_caps cpu_caps_t;
-
-int cpuid_get_caps(cpu_caps_t *cpuinfo);
-
-#endif
diff --git a/tools/win32build/cpuid/test.c b/tools/win32build/cpuid/test.c
deleted file mode 100644
index 31f9a7f11..000000000
--- a/tools/win32build/cpuid/test.c
+++ /dev/null
@@ -1,44 +0,0 @@
-#include <stdio.h>
-
-#include "cpuid.h"
-
-int main()
-{
- cpu_caps_t *cpuinfo;
-
- cpuinfo = malloc(sizeof(*cpuinfo));
-
- if (cpuinfo == NULL) {
- fprintf(stderr, "Error allocating\n");
- }
-
- cpuid_get_caps(cpuinfo);
- printf("This cpu string is %s\n", cpuinfo->vendor);
-
- if (cpuinfo->has_mmx) {
- printf("This cpu has mmx instruction set\n");
- } else {
- printf("This cpu does NOT have mmx instruction set\n");
- }
-
- if (cpuinfo->has_sse) {
- printf("This cpu has sse instruction set\n");
- } else {
- printf("This cpu does NOT have sse instruction set\n");
- }
-
- if (cpuinfo->has_sse2) {
- printf("This cpu has sse2 instruction set\n");
- } else {
- printf("This cpu does NOT have sse2 instruction set\n");
- }
-
- if (cpuinfo->has_sse3) {
- printf("This cpu has sse3 instruction set\n");
- } else {
- printf("This cpu does NOT have sse3 instruction set\n");
- }
-
- free(cpuinfo);
- return 0;
-}
View Lorry Controller Status