0,0 → 1,87 |
/* |
* Copyright (C) 2001-2004 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
|
#include <arch/cpu.h> |
#include <arch/cpuid.h> |
#include <arch/pm.h> |
|
#include <arch.h> |
#include <arch/types.h> |
#include <print.h> |
#include <typedefs.h> |
|
/* |
* Identification of CPUs. |
* Contains only non-MP-Specification specific SMP code. |
*/ |
#define AMD_CPUID_EBX 0x68747541 |
#define AMD_CPUID_ECX 0x444d4163 |
#define AMD_CPUID_EDX 0x69746e65 |
|
#define INTEL_CPUID_EBX 0x756e6547 |
#define INTEL_CPUID_ECX 0x6c65746e |
#define INTEL_CPUID_EDX 0x49656e69 |
|
|
enum vendor { |
VendorUnknown=0, |
VendorAMD, |
VendorIntel |
}; |
|
static char *vendor_str[] = { |
"Unknown Vendor", |
"AuthenticAMD", |
"GenuineIntel" |
}; |
|
void set_TS_flag(void) |
{ |
asm |
( |
"mov %%cr0,%%rax;" |
"or $8,%%rax;" |
"mov %%rax,%%cr0;" |
: |
: |
:"%rax" |
); |
} |
|
void reset_TS_flag(void) |
{ |
asm |
( |
"mov %%cr0,%%rax;" |
"btc $4,%%rax;" |
"mov %%rax,%%cr0;" |
: |
: |
:"%rax" |
); |
} |