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Get brand string

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This commit is contained in:
Baptiste Wicht 2013-12-02 16:36:07 +01:00
parent f9375a4c63
commit b6555b13ec
1 changed files with 73 additions and 1 deletions
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74
kernel/src/shell.cpp
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@ -727,6 +727,51 @@ void get_features(){
k_print_line();
}
void get_deterministic_cache_parameters(){
uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
eax = 0;
native_cpuid(&eax, &ebx, &ecx, &edx);
if(eax < 4){
//Not supported on this processor
return;
}
size_t caches = 0;
while(caches < 1000){
eax = 4;
native_cpuid(&eax, &ebx, &ecx, &edx);
if ( (eax & 0x1F) == 0 ) {
// No more caches
break;
}
if ((eax & 0x1F) == 1){
k_print("Data Cache: ");
}
if ((eax & 0x1F) == 2){
k_print("Instruction Cache: ");
}
if ((eax & 0x1F) == 3){
k_print("Unified Cache: ");
}
k_printf( "Level %d: ", (eax & 0xE0)/32 );
k_printf( "Max Threads %d: ", ((eax & 0x03FFC000)/(8192))+1 );
k_printf( "Max Procs. %d: " , ((eax & 0xFC000000)/(4*256*65536))+1 );
k_printf( "Line Size = %d: ", (ebx & 0xFFF ) + 1 );
k_printf( "Associativity = %d: ", ((ebx & 0xFFC00000)/4*16*65536) + 1 );
k_printf( "Sets = %d:\n", ecx + 1 );
++caches;
}
}
void sysinfo_command(const vector<string>&){
uint32_t eax = 0, ebx = 0, ecx = 0, edx = 0;
@ -751,9 +796,36 @@ void sysinfo_command(const vector<string>&){
k_printf("Vendor ID: %s\n", vendor_id);
get_features();
char brand_string[49];
eax = 0x80000002;
native_cpuid(&eax, &ebx, &ecx, &edx);
*(reinterpret_cast<uint32_t*>(brand_string)+0) = eax;
*(reinterpret_cast<uint32_t*>(brand_string)+1) = ebx;
*(reinterpret_cast<uint32_t*>(brand_string)+2) = ecx;
*(reinterpret_cast<uint32_t*>(brand_string)+3) = edx;
eax = 0x80000003;
native_cpuid(&eax, &ebx, &ecx, &edx);
*(reinterpret_cast<uint32_t*>(brand_string)+4) = eax;
*(reinterpret_cast<uint32_t*>(brand_string)+5) = ebx;
*(reinterpret_cast<uint32_t*>(brand_string)+6) = ecx;
*(reinterpret_cast<uint32_t*>(brand_string)+7) = edx;
eax = 0x80000004;
native_cpuid(&eax, &ebx, &ecx, &edx);
*(reinterpret_cast<uint32_t*>(brand_string)+8) = eax;
*(reinterpret_cast<uint32_t*>(brand_string)+9) = ebx;
*(reinterpret_cast<uint32_t*>(brand_string)+10) = ecx;
*(reinterpret_cast<uint32_t*>(brand_string)+11) = edx;
brand_string[48] = '\0';
k_printf("Brand String: %s\n", brand_string);
get_features();
get_cache_info();
get_deterministic_cache_parameters();
}
} //end of anonymous namespace