Subversion Repositories HelenOS

Rev

Rev 141 | Rev 391 | Go to most recent revision | Only display areas with differences | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 141 Rev 309
1
/*
1
/*
2
 * Copyright (C) 2001-2004 Jakub Jermar
2
 * Copyright (C) 2001-2004 Jakub Jermar
3
 * All rights reserved.
3
 * All rights reserved.
4
 *
4
 *
5
 * Redistribution and use in source and binary forms, with or without
5
 * Redistribution and use in source and binary forms, with or without
6
 * modification, are permitted provided that the following conditions
6
 * modification, are permitted provided that the following conditions
7
 * are met:
7
 * are met:
8
 *
8
 *
9
 * - Redistributions of source code must retain the above copyright
9
 * - Redistributions of source code must retain the above copyright
10
 *   notice, this list of conditions and the following disclaimer.
10
 *   notice, this list of conditions and the following disclaimer.
11
 * - Redistributions in binary form must reproduce the above copyright
11
 * - Redistributions in binary form must reproduce the above copyright
12
 *   notice, this list of conditions and the following disclaimer in the
12
 *   notice, this list of conditions and the following disclaimer in the
13
 *   documentation and/or other materials provided with the distribution.
13
 *   documentation and/or other materials provided with the distribution.
14
 * - The name of the author may not be used to endorse or promote products
14
 * - The name of the author may not be used to endorse or promote products
15
 *   derived from this software without specific prior written permission.
15
 *   derived from this software without specific prior written permission.
16
 *
16
 *
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
 */
27
 */
28
 
28
 
29
#include <arch/cpu.h>
29
#include <arch/cpu.h>
30
#include <arch/cpuid.h>
30
#include <arch/cpuid.h>
31
#include <arch/pm.h>
31
#include <arch/pm.h>
32
 
32
 
33
#include <arch.h>
33
#include <arch.h>
34
#include <arch/types.h>
34
#include <arch/types.h>
35
#include <print.h>
35
#include <print.h>
36
#include <typedefs.h>
36
#include <typedefs.h>
37
 
37
 
38
#include <arch/smp/apic.h>
38
#include <arch/smp/apic.h>
39
 
39
 
40
/*
40
/*
41
 * Identification of CPUs.
41
 * Identification of CPUs.
42
 * Contains only non-MP-Specification specific SMP code.
42
 * Contains only non-MP-Specification specific SMP code.
43
 */
43
 */
44
#define AMD_CPUID_EBX   0x68747541
44
#define AMD_CPUID_EBX   0x68747541
45
#define AMD_CPUID_ECX   0x444d4163
45
#define AMD_CPUID_ECX   0x444d4163
46
#define AMD_CPUID_EDX   0x69746e65
46
#define AMD_CPUID_EDX   0x69746e65
47
 
47
 
48
#define INTEL_CPUID_EBX 0x756e6547
48
#define INTEL_CPUID_EBX 0x756e6547
49
#define INTEL_CPUID_ECX 0x6c65746e
49
#define INTEL_CPUID_ECX 0x6c65746e
50
#define INTEL_CPUID_EDX 0x49656e69
50
#define INTEL_CPUID_EDX 0x49656e69
51
 
51
 
52
 
52
 
53
enum vendor {
53
enum vendor {
54
    VendorUnknown=0,
54
    VendorUnknown=0,
55
    VendorAMD,
55
    VendorAMD,
56
    VendorIntel
56
    VendorIntel
57
};
57
};
58
 
58
 
59
static char *vendor_str[] = {
59
static char *vendor_str[] = {
60
    "Unknown Vendor",
60
    "Unknown Vendor",
61
    "AuthenticAMD",
61
    "AuthenticAMD",
62
    "GenuineIntel"
62
    "GenuineIntel"
63
};
63
};
64
 
64
 
65
void set_TS_flag(void)
65
void fpu_disable(void)
66
{
66
{
67
    asm
67
    __asm__ volatile (
68
    (
-
 
69
        "mov %%cr0,%%eax;"
68
        "mov %%cr0,%%eax;"
70
        "or $8,%%eax;"
69
        "or $8,%%eax;"
71
        "mov %%eax,%%cr0;"
70
        "mov %%eax,%%cr0;"
72
        :
71
        :
73
        :
72
        :
74
        :"%eax"
73
        :"%eax"
75
    );
74
    );
76
}
75
}
77
 
76
 
78
void reset_TS_flag(void)
77
void fpu_enable(void)
79
{
78
{
80
    asm
79
    __asm__ volatile (
81
    (
-
 
82
        "mov %%cr0,%%eax;"
80
        "mov %%cr0,%%eax;"
83
        "and $0xffFFffF7,%%eax;"
81
        "and $0xffFFffF7,%%eax;"
84
        "mov %%eax,%%cr0;"
82
        "mov %%eax,%%cr0;"
85
        :
83
        :
86
        :
84
        :
87
        :"%eax"
85
        :"%eax"
88
    ); 
86
    ); 
89
}
87
}
90
 
88
 
91
 
89
 
92
 
90
 
93
 
91
 
94
void cpu_arch_init(void)
92
void cpu_arch_init(void)
95
{
93
{
96
    CPU->arch.tss = tss_p;
94
    CPU->arch.tss = tss_p;
97
    CPU->fpu_owner=NULL;
95
    CPU->fpu_owner=NULL;
98
}
96
}
99
 
97
 
100
 
98
 
101
void cpu_identify(void)
99
void cpu_identify(void)
102
{
100
{
103
    cpu_info_t info;
101
    cpu_info_t info;
104
    int i;
102
    int i;
105
 
103
 
106
    CPU->arch.vendor = VendorUnknown;
104
    CPU->arch.vendor = VendorUnknown;
107
    if (has_cpuid()) {
105
    if (has_cpuid()) {
108
        cpuid(0, &info);
106
        cpuid(0, &info);
109
 
107
 
110
        /*
108
        /*
111
         * Check for AMD processor.
109
         * Check for AMD processor.
112
         */
110
         */
113
        if (info.cpuid_ebx==AMD_CPUID_EBX && info.cpuid_ecx==AMD_CPUID_ECX && info.cpuid_edx==AMD_CPUID_EDX) {
111
        if (info.cpuid_ebx==AMD_CPUID_EBX && info.cpuid_ecx==AMD_CPUID_ECX && info.cpuid_edx==AMD_CPUID_EDX) {
114
            CPU->arch.vendor = VendorAMD;
112
            CPU->arch.vendor = VendorAMD;
115
        }
113
        }
116
 
114
 
117
        /*
115
        /*
118
         * Check for Intel processor.
116
         * Check for Intel processor.
119
         */    
117
         */    
120
        if (info.cpuid_ebx==INTEL_CPUID_EBX && info.cpuid_ecx==INTEL_CPUID_ECX && info.cpuid_edx==INTEL_CPUID_EDX) {
118
        if (info.cpuid_ebx==INTEL_CPUID_EBX && info.cpuid_ecx==INTEL_CPUID_ECX && info.cpuid_edx==INTEL_CPUID_EDX) {
121
            CPU->arch.vendor = VendorIntel;
119
            CPU->arch.vendor = VendorIntel;
122
        }
120
        }
123
               
121
               
124
        cpuid(1, &info);
122
        cpuid(1, &info);
125
        CPU->arch.family = (info.cpuid_eax>>8)&0xf;
123
        CPU->arch.family = (info.cpuid_eax>>8)&0xf;
126
        CPU->arch.model = (info.cpuid_eax>>4)&0xf;
124
        CPU->arch.model = (info.cpuid_eax>>4)&0xf;
127
        CPU->arch.stepping = (info.cpuid_eax>>0)&0xf;                      
125
        CPU->arch.stepping = (info.cpuid_eax>>0)&0xf;                      
128
    }
126
    }
129
}
127
}
130
 
128
 
131
void cpu_print_report(cpu_t* m)
129
void cpu_print_report(cpu_t* m)
132
{
130
{
133
    printf("cpu%d: (%s family=%d model=%d stepping=%d) %dMHz\n",
131
    printf("cpu%d: (%s family=%d model=%d stepping=%d) %dMHz\n",
134
        m->id, vendor_str[m->arch.vendor], m->arch.family, m->arch.model, m->arch.stepping,
132
        m->id, vendor_str[m->arch.vendor], m->arch.family, m->arch.model, m->arch.stepping,
135
        m->frequency_mhz);
133
        m->frequency_mhz);
136
}
134
}
137
 
135