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
|
/* $OpenBSD: kate.c,v 1.2 2008/03/27 04:52:03 cnst Exp $ */
/*
* Copyright (c) 2008 Constantine A. Murenin <cnst+openbsd@bugmail.mojo.ru>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/sensors.h>
#include <machine/bus.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcidevs.h>
/*
* AMD NPT Family 0Fh Processors, Function 3 -- Miscellaneous Control
*/
/* Function 3 Registers */
#define K_THERMTRIP_STAT_R 0xe4
#define K_NORTHBRIDGE_CAP_R 0xe8
#define K_CPUID_FAMILY_MODEL_R 0xfc
/* Bits within Thermtrip Status Register */
#define K_THERM_SENSE_SEL (1 << 6)
#define K_THERM_SENSE_CORE_SEL (1 << 2)
/* Flip core and sensor selection bits */
#define K_T_SEL_C0(v) (v |= K_THERM_SENSE_CORE_SEL)
#define K_T_SEL_C1(v) (v &= ~(K_THERM_SENSE_CORE_SEL))
#define K_T_SEL_S0(v) (v &= ~(K_THERM_SENSE_SEL))
#define K_T_SEL_S1(v) (v |= K_THERM_SENSE_SEL)
/*
* Revision Guide for AMD NPT Family 0Fh Processors,
* Publication # 33610, Revision 3.30, February 2008
*/
static const struct {
const char rev[5];
const pcireg_t cpuid[5];
} kate_proc[] = {
{ "BH-F", { 0x00040FB0, 0x00040F80, 0, 0, 0 } }, /* F2 */
{ "DH-F", { 0x00040FF0, 0x00050FF0, 0x00040FC0, 0, 0 } }, /* F2, F3 */
{ "JH-F", { 0x00040F10, 0x00040F30, 0x000C0F10, 0, 0 } }, /* F2, F3 */
{ "BH-G", { 0x00060FB0, 0x00060F80, 0, 0, 0 } }, /* G1, G2 */
{ "DH-G", { 0x00070FF0, 0x00060FF0,
0x00060FC0, 0x00070FC0, 0 } } /* G1, G2 */
};
struct kate_softc {
struct device sc_dev;
pci_chipset_tag_t sc_pc;
pcitag_t sc_pcitag;
struct ksensor sc_sensors[4];
struct ksensordev sc_sensordev;
char sc_rev;
int8_t sc_numsensors;
};
int kate_match(struct device *, void *, void *);
void kate_attach(struct device *, struct device *, void *);
void kate_refresh(void *);
struct cfattach kate_ca = {
sizeof(struct kate_softc), kate_match, kate_attach
};
struct cfdriver kate_cd = {
NULL, "kate", DV_DULL
};
int
kate_match(struct device *parent, void *match, void *aux)
{
struct pci_attach_args *pa = aux;
#ifndef KATE_STRICT
struct kate_softc ks;
struct kate_softc *sc = &ks;
#endif /* !KATE_STRICT */
pcireg_t c;
int i, j;
if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_AMD ||
PCI_PRODUCT(pa->pa_id) != PCI_PRODUCT_AMD_AMD64_MISC)
return 0;
/*
* First, let's probe for chips at or after Revision F, which is
* when the temperature readings were officially introduced.
*/
c = pci_conf_read(pa->pa_pc, pa->pa_tag, K_CPUID_FAMILY_MODEL_R);
for (i = 0; i < sizeof(kate_proc) / sizeof(kate_proc[0]); i++)
for (j = 0; kate_proc[i].cpuid[j] != 0; j++)
if ((c & ~0xf) == kate_proc[i].cpuid[j])
return 2; /* supersede pchb(4) */
#ifndef KATE_STRICT
/*
* If the probe above was not successful, let's try to actually
* read the sensors from the chip, and see if they make any sense.
*/
sc->sc_numsensors = 4;
sc->sc_pc = pa->pa_pc;
sc->sc_pcitag = pa->pa_tag;
kate_refresh(sc);
for (i = 0; i < sc->sc_numsensors; i++)
if (!(sc->sc_sensors[i].flags & SENSOR_FINVALID))
return 2; /* supersede pchb(4) */
#endif /* !KATE_STRICT */
return 0;
}
void
kate_attach(struct device *parent, struct device *self, void *aux)
{
struct kate_softc *sc = (struct kate_softc *)self;
struct pci_attach_args *pa = aux;
pcireg_t c, d;
int i, j, cmpcap;
c = pci_conf_read(pa->pa_pc, pa->pa_tag, K_CPUID_FAMILY_MODEL_R);
for (i = 0; i < sizeof(kate_proc) / sizeof(kate_proc[0]) &&
sc->sc_rev == '\0'; i++)
for (j = 0; kate_proc[i].cpuid[j] != 0; j++)
if ((c & ~0xf) == kate_proc[i].cpuid[j]) {
sc->sc_rev = kate_proc[i].rev[3];
printf(": core rev %.4s%.1x",
kate_proc[i].rev, c & 0xf);
}
if (c != 0x0 && sc->sc_rev == '\0') {
/* CPUID Family Model Register was introduced in Revision F */
sc->sc_rev = 'G'; /* newer than E, assume G */
printf(": cpuid 0x%x", c);
}
d = pci_conf_read(pa->pa_pc, pa->pa_tag, K_NORTHBRIDGE_CAP_R);
cmpcap = (d >> 12) && 0x3;
sc->sc_pc = pa->pa_pc;
sc->sc_pcitag = pa->pa_tag;
#ifndef KATE_STRICT
sc->sc_numsensors = 4;
kate_refresh(sc);
if (cmpcap == 0 &&
(sc->sc_sensors[2].flags & SENSOR_FINVALID) &&
(sc->sc_sensors[3].flags & SENSOR_FINVALID))
sc->sc_numsensors = 2;
#else
sc->sc_numsensors = cmpcap ? 4 : 2;
#endif /* !KATE_STRICT */
strlcpy(sc->sc_sensordev.xname, sc->sc_dev.dv_xname,
sizeof(sc->sc_sensordev.xname));
for (i = 0; i < sc->sc_numsensors; i++) {
sc->sc_sensors[i].type = SENSOR_TEMP;
sensor_attach(&sc->sc_sensordev, &sc->sc_sensors[i]);
}
if (sensor_task_register(sc, kate_refresh, 5) == NULL) {
printf(": unable to register the update task\n");
return;
}
sensordev_install(&sc->sc_sensordev);
printf("\n");
}
void
kate_refresh(void *arg)
{
struct kate_softc *sc = arg;
struct ksensor *s = sc->sc_sensors;
int8_t n = sc->sc_numsensors;
pcireg_t t, m;
int i, v;
t = pci_conf_read(sc->sc_pc, sc->sc_pcitag, K_THERMTRIP_STAT_R);
for (i = 0; i < n; i++) {
switch(i) {
case 0:
K_T_SEL_C0(t);
K_T_SEL_S0(t);
break;
case 1:
K_T_SEL_C0(t);
K_T_SEL_S1(t);
break;
case 2:
K_T_SEL_C1(t);
K_T_SEL_S0(t);
break;
case 3:
K_T_SEL_C1(t);
K_T_SEL_S1(t);
break;
}
m = t & (K_THERM_SENSE_CORE_SEL | K_THERM_SENSE_SEL);
pci_conf_write(sc->sc_pc, sc->sc_pcitag, K_THERMTRIP_STAT_R, t);
t = pci_conf_read(sc->sc_pc, sc->sc_pcitag, K_THERMTRIP_STAT_R);
v = 0x3ff & (t >> 14);
#ifdef KATE_STRICT
if (sc->sc_rev != 'G')
v &= ~0x3;
#endif /* KATE_STRICT */
if ((t & (K_THERM_SENSE_CORE_SEL | K_THERM_SENSE_SEL)) == m &&
(v & ~0x3) != 0)
s[i].flags &= ~SENSOR_FINVALID;
else
s[i].flags |= SENSOR_FINVALID;
s[i].value = (v * 250000 - 49000000) + 273150000;
}
}
|
