1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
|
#include <console/console.h>
#include <cpu/cpu.h>
#include <smp/start_stop.h>
#include <arch/smp/mpspec.h>
#include <string.h>
#include <cpu/p5/cpuid.h>
#include <cpu/p6/apic.h>
unsigned char smp_compute_checksum(void *v, int len)
{
unsigned char *bytes;
unsigned char checksum;
int i;
bytes = v;
checksum = 0;
for(i = 0; i < len; i++) {
checksum -= bytes[i];
}
return checksum;
}
void *smp_write_floating_table(unsigned long addr)
{
struct intel_mp_floating *mf;
void *v;
/* 16 byte align the table address */
addr += 15;
addr &= ~15;
v = (void *)addr;
mf = v;
mf->mpf_signature[0] = '_';
mf->mpf_signature[1] = 'M';
mf->mpf_signature[2] = 'P';
mf->mpf_signature[3] = '_';
mf->mpf_physptr = (unsigned long)(((char *)v) + SMP_FLOATING_TABLE_LEN);
mf->mpf_length = 1;
mf->mpf_specification = 4;
mf->mpf_checksum = 0;
mf->mpf_feature1 = 0;
mf->mpf_feature2 = 0;
mf->mpf_feature3 = 0;
mf->mpf_feature4 = 0;
mf->mpf_feature5 = 0;
mf->mpf_checksum = smp_compute_checksum(mf, mf->mpf_length*16);
return v;
}
void *smp_next_mpc_entry(struct mp_config_table *mc)
{
void *v;
v = (void *)(((char *)mc) + mc->mpc_length);
return v;
}
static void smp_add_mpc_entry(struct mp_config_table *mc, unsigned length)
{
mc->mpc_length += length;
mc->mpc_entry_count++;
}
void *smp_next_mpe_entry(struct mp_config_table *mc)
{
void *v;
v = (void *)(((char *)mc) + mc->mpc_length + mc->mpe_length);
return v;
}
static void smp_add_mpe_entry(struct mp_config_table *mc, mpe_t mpe)
{
mc->mpe_length += mpe->mpe_length;
}
void smp_write_processor(struct mp_config_table *mc,
unsigned char apicid, unsigned char apicver,
unsigned char cpuflag, unsigned int cpufeature,
unsigned int featureflag)
{
struct mpc_config_processor *mpc;
mpc = smp_next_mpc_entry(mc);
memset(mpc, '\0', sizeof(*mpc));
mpc->mpc_type = MP_PROCESSOR;
mpc->mpc_apicid = apicid;
mpc->mpc_apicver = apicver;
mpc->mpc_cpuflag = cpuflag;
mpc->mpc_cpufeature = cpufeature;
mpc->mpc_featureflag = featureflag;
smp_add_mpc_entry(mc, sizeof(*mpc));
}
/* If we assume a symmetric processor configuration we can
* get all of the information we need to write the processor
* entry from the bootstrap processor.
* Plus I don't think linux really even cares.
* Having the proper apicid's in the table so the non-bootstrap
* processors can be woken up should be enough.
*/
void smp_write_processors(struct mp_config_table *mc,
unsigned long *processor_map)
{
int i;
int processor_id;
unsigned apic_version;
unsigned cpu_features;
unsigned cpu_feature_flags;
int eax, ebx, ecx, edx;
processor_id = this_processors_id();
apic_version = apic_read(APIC_LVR) & 0xff;
cpuid(1, &eax, &ebx, &ecx, &edx);
cpu_features = eax;
cpu_feature_flags = edx;
for(i = 0; i < CONFIG_MAX_CPUS; i++) {
unsigned long cpu_apicid = initial_apicid[i];
unsigned long cpu_flag;
if(initial_apicid[i]==-1)
continue;
cpu_flag = MPC_CPU_ENABLED;
if (processor_map[i] & CPU_BOOTPROCESSOR) {
cpu_flag |= MPC_CPU_BOOTPROCESSOR;
}
smp_write_processor(mc, cpu_apicid, apic_version,
cpu_flag, cpu_features, cpu_feature_flags
);
}
}
void smp_write_bus(struct mp_config_table *mc,
unsigned char id, unsigned char *bustype)
{
struct mpc_config_bus *mpc;
mpc = smp_next_mpc_entry(mc);
memset(mpc, '\0', sizeof(*mpc));
mpc->mpc_type = MP_BUS;
mpc->mpc_busid = id;
memcpy(mpc->mpc_bustype, bustype, sizeof(mpc->mpc_bustype));
smp_add_mpc_entry(mc, sizeof(*mpc));
}
void smp_write_ioapic(struct mp_config_table *mc,
unsigned char id, unsigned char ver,
unsigned long apicaddr)
{
struct mpc_config_ioapic *mpc;
mpc = smp_next_mpc_entry(mc);
memset(mpc, '\0', sizeof(*mpc));
mpc->mpc_type = MP_IOAPIC;
mpc->mpc_apicid = id;
mpc->mpc_apicver = ver;
mpc->mpc_flags = MPC_APIC_USABLE;
mpc->mpc_apicaddr = apicaddr;
smp_add_mpc_entry(mc, sizeof(*mpc));
}
void smp_write_intsrc(struct mp_config_table *mc,
unsigned char irqtype, unsigned short irqflag,
unsigned char srcbus, unsigned char srcbusirq,
unsigned char dstapic, unsigned char dstirq)
{
struct mpc_config_intsrc *mpc;
mpc = smp_next_mpc_entry(mc);
memset(mpc, '\0', sizeof(*mpc));
mpc->mpc_type = MP_INTSRC;
mpc->mpc_irqtype = irqtype;
mpc->mpc_irqflag = irqflag;
mpc->mpc_srcbus = srcbus;
mpc->mpc_srcbusirq = srcbusirq;
mpc->mpc_dstapic = dstapic;
mpc->mpc_dstirq = dstirq;
smp_add_mpc_entry(mc, sizeof(*mpc));
#if CONFIG_DEBUG_MPTABLE == 1
printk_info("add intsrc srcbus 0x%x srcbusirq 0x%x, dstapic 0x%x, dstirq 0x%x\n",
srcbus, srcbusirq, dstapic, dstirq);
hexdump(__FUNCTION__, mpc, sizeof(*mpc));
#endif
}
void smp_write_lintsrc(struct mp_config_table *mc,
unsigned char irqtype, unsigned short irqflag,
unsigned char srcbusid, unsigned char srcbusirq,
unsigned char destapic, unsigned char destapiclint)
{
struct mpc_config_lintsrc *mpc;
mpc = smp_next_mpc_entry(mc);
memset(mpc, '\0', sizeof(*mpc));
mpc->mpc_type = MP_LINTSRC;
mpc->mpc_irqtype = irqtype;
mpc->mpc_irqflag = irqflag;
mpc->mpc_srcbusid = srcbusid;
mpc->mpc_srcbusirq = srcbusirq;
mpc->mpc_destapic = destapic;
mpc->mpc_destapiclint = destapiclint;
smp_add_mpc_entry(mc, sizeof(*mpc));
}
void smp_write_address_space(struct mp_config_table *mc,
unsigned char busid, unsigned char address_type,
unsigned int address_base_low, unsigned int address_base_high,
unsigned int address_length_low, unsigned int address_length_high)
{
struct mp_exten_system_address_space *mpe;
mpe = smp_next_mpe_entry(mc);
memset(mpe, '\0', sizeof(*mpe));
mpe->mpe_type = MPE_SYSTEM_ADDRESS_SPACE;
mpe->mpe_length = sizeof(*mpe);
mpe->mpe_busid = busid;
mpe->mpe_address_type = address_type;
mpe->mpe_address_base_low = address_base_low;
mpe->mpe_address_base_high = address_base_high;
mpe->mpe_address_length_low = address_length_low;
mpe->mpe_address_length_high = address_length_high;
smp_add_mpe_entry(mc, (mpe_t)mpe);
}
void smp_write_bus_hierarchy(struct mp_config_table *mc,
unsigned char busid, unsigned char bus_info,
unsigned char parent_busid)
{
struct mp_exten_bus_hierarchy *mpe;
mpe = smp_next_mpe_entry(mc);
memset(mpe, '\0', sizeof(*mpe));
mpe->mpe_type = MPE_BUS_HIERARCHY;
mpe->mpe_length = sizeof(*mpe);
mpe->mpe_busid = busid;
mpe->mpe_bus_info = bus_info;
mpe->mpe_parent_busid = parent_busid;
smp_add_mpe_entry(mc, (mpe_t)mpe);
}
void smp_write_compatibility_address_space(struct mp_config_table *mc,
unsigned char busid, unsigned char address_modifier,
unsigned int range_list)
{
struct mp_exten_compatibility_address_space *mpe;
mpe = smp_next_mpe_entry(mc);
memset(mpe, '\0', sizeof(*mpe));
mpe->mpe_type = MPE_COMPATIBILITY_ADDRESS_SPACE;
mpe->mpe_length = sizeof(*mpe);
mpe->mpe_busid = busid;
mpe->mpe_address_modifier = address_modifier;
mpe->mpe_range_list = range_list;
smp_add_mpe_entry(mc, (mpe_t)mpe);
}
|
