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
|
/* Copyright 2013-2014 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <skiboot.h>
#include <chip.h>
#include <console.h>
#include <device.h>
#include <timebase.h>
static struct proc_chip *chips[MAX_CHIPS];
enum proc_chip_quirks proc_chip_quirks;
uint32_t pir_to_chip_id(uint32_t pir)
{
if (proc_gen == proc_gen_p9)
return P9_PIR2GCID(pir);
else if (proc_gen == proc_gen_p8)
return P8_PIR2GCID(pir);
else
return P7_PIR2GCID(pir);
}
uint32_t pir_to_core_id(uint32_t pir)
{
if (proc_gen == proc_gen_p9)
return P9_PIR2COREID(pir);
else if (proc_gen == proc_gen_p8)
return P8_PIR2COREID(pir);
else
return P7_PIR2COREID(pir);
}
uint32_t pir_to_thread_id(uint32_t pir)
{
if (proc_gen == proc_gen_p9)
return P9_PIR2THREADID(pir);
else if (proc_gen == proc_gen_p8)
return P8_PIR2THREADID(pir);
else
return P7_PIR2THREADID(pir);
}
struct proc_chip *next_chip(struct proc_chip *chip)
{
unsigned int i;
for (i = chip ? (chip->id + 1) : 0; i < MAX_CHIPS; i++)
if (chips[i])
return chips[i];
return NULL;
}
struct proc_chip *get_chip(uint32_t chip_id)
{
if (chip_id >= MAX_CHIPS)
return NULL;
return chips[chip_id];
}
static void init_chip(struct dt_node *dn)
{
struct proc_chip *chip;
uint32_t id;
const char *lc = NULL;
id = dt_get_chip_id(dn);
assert(id < MAX_CHIPS);
assert(chips[id] == NULL);
chip = zalloc(sizeof(struct proc_chip));
assert(chip);
chip->id = id;
chip->devnode = dn;
chip->dbob_id = dt_prop_get_u32_def(dn, "ibm,dbob-id", 0xffffffff);
chip->pcid = dt_prop_get_u32_def(dn, "ibm,proc-chip-id", 0xffffffff);
if (dt_prop_get_u32_def(dn, "ibm,occ-functional-state", 0))
chip->occ_functional = true;
else
chip->occ_functional = false;
list_head_init(&chip->i2cms);
/* Update the location code for this chip. */
if (dt_has_node_property(dn, "ibm,loc-code", NULL))
lc = dt_prop_get(dn, "ibm,loc-code");
else if (dt_has_node_property(dn, "ibm,slot-location-code", NULL))
lc = dt_prop_get(dn, "ibm,slot-location-code");
if (lc)
chip->loc_code = strdup(lc);
prlog(PR_INFO, "CHIP: Initialised chip %d from %s\n", id, dn->name);
chips[id] = chip;
}
void init_chips(void)
{
struct dt_node *xn;
/* Detect mambo chip */
if (dt_find_by_path(dt_root, "/mambo")) {
proc_chip_quirks |= QUIRK_NO_CHIPTOD | QUIRK_MAMBO_CALLOUTS
| QUIRK_NO_F000F | QUIRK_NO_PBA | QUIRK_NO_OCC_IRQ
| QUIRK_NO_RNG;
enable_mambo_console();
prlog(PR_NOTICE, "CHIP: Detected Mambo simulator\n");
dt_for_each_compatible(dt_root, xn, "ibm,mambo-chip")
init_chip(xn);
}
/* Detect simics */
if (dt_find_by_path(dt_root, "/simics")) {
proc_chip_quirks |= QUIRK_SIMICS
| QUIRK_NO_PBA | QUIRK_NO_OCC_IRQ | QUIRK_SLOW_SIM;
tb_hz = 512000;
prlog(PR_NOTICE, "CHIP: Detected Simics simulator\n");
}
/* Detect Awan emulator */
if (dt_find_by_path(dt_root, "/awan")) {
proc_chip_quirks |= QUIRK_NO_CHIPTOD | QUIRK_NO_F000F
| QUIRK_NO_PBA | QUIRK_NO_OCC_IRQ | QUIRK_SLOW_SIM;
tb_hz = 512000;
prlog(PR_NOTICE, "CHIP: Detected Awan emulator\n");
}
/* Detect Qemu */
if (dt_node_is_compatible(dt_root, "qemu,powernv")) {
proc_chip_quirks |= QUIRK_NO_CHIPTOD | QUIRK_NO_PBA
| QUIRK_NO_DIRECT_CTL;
prlog(PR_NOTICE, "CHIP: Detected Qemu simulator\n");
}
/* We walk the chips based on xscom nodes in the tree */
dt_for_each_compatible(dt_root, xn, "ibm,xscom") {
init_chip(xn);
}
}
|
