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c3a2c0df SZ |
1 | /* |
2 | * Copyright (c) 2009 The DragonFly Project. All rights reserved. | |
3 | * | |
4 | * This code is derived from software contributed to The DragonFly Project | |
5 | * by Sepherosa Ziehau <sepherosa@gmail.com> | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * | |
11 | * 1. Redistributions of source code must retain the above copyright | |
12 | * notice, this list of conditions and the following disclaimer. | |
13 | * 2. Redistributions in binary form must reproduce the above copyright | |
14 | * notice, this list of conditions and the following disclaimer in | |
15 | * the documentation and/or other materials provided with the | |
16 | * distribution. | |
17 | * 3. Neither the name of The DragonFly Project nor the names of its | |
18 | * contributors may be used to endorse or promote products derived | |
19 | * from this software without specific, prior written permission. | |
20 | * | |
21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
22 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
23 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
24 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
25 | * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, | |
26 | * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
27 | * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
28 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED | |
29 | * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
30 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT | |
31 | * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
32 | * SUCH DAMAGE. | |
33 | */ | |
34 | ||
35 | #include "opt_acpi.h" | |
36 | ||
37 | #include <sys/param.h> | |
38 | #include <sys/bus.h> | |
39 | #include <sys/kernel.h> | |
40 | #include <sys/malloc.h> | |
41 | #include <sys/queue.h> | |
0e276230 | 42 | #include <sys/rman.h> |
c3a2c0df | 43 | #include <sys/sysctl.h> |
7b46b972 SZ |
44 | #include <sys/msgport2.h> |
45 | ||
46 | #include <net/netisr.h> | |
47 | #include <net/netmsg2.h> | |
48 | #include <net/if_var.h> | |
c3a2c0df SZ |
49 | |
50 | #include "acpi.h" | |
51 | #include "acpivar.h" | |
52 | #include "acpi_cpu.h" | |
7b46b972 | 53 | #include "acpi_cpu_pstate.h" |
c3a2c0df SZ |
54 | |
55 | #define ACPI_NPSTATE_MAX 16 | |
56 | ||
57 | #define ACPI_PSS_PX_NENTRY 6 | |
58 | ||
59 | #define ACPI_PSD_COORD_SWALL 0xfc | |
60 | #define ACPI_PSD_COORD_SWANY 0xfd | |
61 | #define ACPI_PSD_COORD_HWALL 0xfe | |
62 | #define ACPI_PSD_COORD_VALID(coord) \ | |
63 | ((coord) == ACPI_PSD_COORD_SWALL || \ | |
64 | (coord) == ACPI_PSD_COORD_SWANY || \ | |
65 | (coord) == ACPI_PSD_COORD_HWALL) | |
66 | ||
67 | struct acpi_pst_softc; | |
68 | LIST_HEAD(acpi_pst_list, acpi_pst_softc); | |
69 | ||
7b46b972 | 70 | struct netmsg_acpi_pst { |
002c1265 | 71 | struct netmsg_base base; |
76418417 SZ |
72 | const struct acpi_pst_res *ctrl; |
73 | const struct acpi_pst_res *status; | |
7b46b972 SZ |
74 | }; |
75 | ||
c3a2c0df SZ |
76 | struct acpi_pst_domain { |
77 | uint32_t pd_dom; | |
78 | uint32_t pd_coord; | |
79 | uint32_t pd_nproc; | |
80 | LIST_ENTRY(acpi_pst_domain) pd_link; | |
81 | ||
82 | uint32_t pd_flags; | |
83 | ||
84 | int pd_state; | |
85 | int pd_sstart; | |
86 | struct acpi_pst_list pd_pstlist; | |
87 | ||
88 | struct sysctl_ctx_list pd_sysctl_ctx; | |
89 | struct sysctl_oid *pd_sysctl_tree; | |
90 | }; | |
91 | LIST_HEAD(acpi_pst_domlist, acpi_pst_domain); | |
92 | ||
93 | #define ACPI_PSTDOM_FLAG_STUB 0x1 /* stub domain, no _PSD */ | |
7b46b972 | 94 | #define ACPI_PSTDOM_FLAG_DEAD 0x2 /* domain can't be started */ |
0cb292d1 | 95 | #define ACPI_PSTDOM_FLAG_INT 0x4 /* domain created from Integer _PSD */ |
c3a2c0df SZ |
96 | |
97 | struct acpi_pst_softc { | |
7b46b972 | 98 | device_t pst_dev; |
c3a2c0df SZ |
99 | struct acpi_cpux_softc *pst_parent; |
100 | struct acpi_pst_domain *pst_domain; | |
76418417 SZ |
101 | struct acpi_pst_res pst_creg; |
102 | struct acpi_pst_res pst_sreg; | |
c3a2c0df SZ |
103 | |
104 | int pst_state; | |
105 | int pst_sstart; | |
106 | int pst_cpuid; | |
107 | ||
108 | ACPI_HANDLE pst_handle; | |
109 | ||
110 | LIST_ENTRY(acpi_pst_softc) pst_link; | |
111 | }; | |
112 | ||
c3a2c0df SZ |
113 | static int acpi_pst_probe(device_t dev); |
114 | static int acpi_pst_attach(device_t dev); | |
115 | ||
116 | static void acpi_pst_postattach(void *); | |
117 | static struct acpi_pst_domain * | |
0cb292d1 SZ |
118 | acpi_pst_domain_create_int(device_t, uint32_t); |
119 | static struct acpi_pst_domain * | |
120 | acpi_pst_domain_create_pkg(device_t, ACPI_OBJECT *); | |
c3a2c0df SZ |
121 | static struct acpi_pst_domain * |
122 | acpi_pst_domain_find(uint32_t); | |
123 | static struct acpi_pst_domain * | |
124 | acpi_pst_domain_alloc(uint32_t, uint32_t, uint32_t); | |
7b46b972 | 125 | static int acpi_pst_domain_set_pstate(struct acpi_pst_domain *, int); |
446b8384 | 126 | static int acpi_pst_global_set_pstate(int); |
7b46b972 SZ |
127 | |
128 | static int acpi_pst_check_csr(struct acpi_pst_softc *); | |
129 | static int acpi_pst_check_pstates(struct acpi_pst_softc *); | |
c5479e60 | 130 | static int acpi_pst_init(struct acpi_pst_softc *); |
7b46b972 SZ |
131 | static int acpi_pst_set_pstate(struct acpi_pst_softc *, |
132 | const struct acpi_pstate *); | |
133 | static const struct acpi_pstate * | |
134 | acpi_pst_get_pstate(struct acpi_pst_softc *); | |
0e276230 SZ |
135 | static int acpi_pst_alloc_resource(device_t, ACPI_OBJECT *, int, |
136 | struct acpi_pst_res *); | |
7b46b972 | 137 | |
002c1265 MD |
138 | static void acpi_pst_check_csr_handler(netmsg_t); |
139 | static void acpi_pst_check_pstates_handler(netmsg_t); | |
140 | static void acpi_pst_init_handler(netmsg_t); | |
141 | static void acpi_pst_set_pstate_handler(netmsg_t); | |
142 | static void acpi_pst_get_pstate_handler(netmsg_t); | |
c3a2c0df SZ |
143 | |
144 | static int acpi_pst_sysctl_freqs(SYSCTL_HANDLER_ARGS); | |
145 | static int acpi_pst_sysctl_members(SYSCTL_HANDLER_ARGS); | |
7b46b972 SZ |
146 | static int acpi_pst_sysctl_select(SYSCTL_HANDLER_ARGS); |
147 | static int acpi_pst_sysctl_global(SYSCTL_HANDLER_ARGS); | |
c3a2c0df SZ |
148 | |
149 | static struct acpi_pst_domlist acpi_pst_domains = | |
150 | LIST_HEAD_INITIALIZER(acpi_pst_domains); | |
381b8691 | 151 | static int acpi_pst_domain_id; |
c3a2c0df | 152 | |
7b46b972 SZ |
153 | static int acpi_pst_global_state; |
154 | ||
c3a2c0df SZ |
155 | static int acpi_npstates; |
156 | static struct acpi_pstate *acpi_pstates; | |
157 | ||
7b46b972 SZ |
158 | static const struct acpi_pst_md *acpi_pst_md; |
159 | ||
c3a2c0df SZ |
160 | static device_method_t acpi_pst_methods[] = { |
161 | /* Device interface */ | |
162 | DEVMETHOD(device_probe, acpi_pst_probe), | |
163 | DEVMETHOD(device_attach, acpi_pst_attach), | |
164 | DEVMETHOD(device_detach, bus_generic_detach), | |
165 | DEVMETHOD(device_shutdown, bus_generic_shutdown), | |
166 | DEVMETHOD(device_suspend, bus_generic_suspend), | |
167 | DEVMETHOD(device_resume, bus_generic_resume), | |
168 | ||
169 | /* Bus interface */ | |
170 | DEVMETHOD(bus_add_child, bus_generic_add_child), | |
171 | DEVMETHOD(bus_print_child, bus_generic_print_child), | |
172 | DEVMETHOD(bus_read_ivar, bus_generic_read_ivar), | |
173 | DEVMETHOD(bus_write_ivar, bus_generic_write_ivar), | |
174 | DEVMETHOD(bus_get_resource_list, bus_generic_get_resource_list), | |
175 | DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource), | |
176 | DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), | |
177 | DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource), | |
178 | DEVMETHOD(bus_release_resource, bus_generic_release_resource), | |
179 | DEVMETHOD(bus_driver_added, bus_generic_driver_added), | |
180 | DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), | |
181 | DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), | |
182 | DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), | |
183 | DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), | |
184 | ||
185 | { 0, 0 } | |
186 | }; | |
187 | ||
188 | static driver_t acpi_pst_driver = { | |
189 | "cpu_pst", | |
190 | acpi_pst_methods, | |
191 | sizeof(struct acpi_pst_softc) | |
192 | }; | |
193 | ||
194 | static devclass_t acpi_pst_devclass; | |
aa2b9d05 | 195 | DRIVER_MODULE(cpu_pst, cpu, acpi_pst_driver, acpi_pst_devclass, NULL, NULL); |
c3a2c0df SZ |
196 | MODULE_DEPEND(cpu_pst, acpi, 1, 1, 1); |
197 | ||
7b46b972 SZ |
198 | static __inline int |
199 | acpi_pst_freq2index(int freq) | |
200 | { | |
201 | int i; | |
202 | ||
203 | for (i = 0; i < acpi_npstates; ++i) { | |
204 | if (acpi_pstates[i].st_freq == freq) | |
205 | return i; | |
206 | } | |
207 | return -1; | |
208 | } | |
209 | ||
c3a2c0df SZ |
210 | static int |
211 | acpi_pst_probe(device_t dev) | |
212 | { | |
213 | ACPI_BUFFER buf; | |
214 | ACPI_HANDLE handle; | |
215 | ACPI_STATUS status; | |
216 | ACPI_OBJECT *obj; | |
217 | ||
218 | if (acpi_disabled("cpu_pst") || | |
219 | acpi_get_type(dev) != ACPI_TYPE_PROCESSOR) | |
220 | return ENXIO; | |
221 | ||
7b46b972 SZ |
222 | if (acpi_pst_md == NULL) |
223 | acpi_pst_md = acpi_pst_md_probe(); | |
224 | ||
c3a2c0df SZ |
225 | handle = acpi_get_handle(dev); |
226 | ||
227 | /* | |
228 | * Check _PCT package | |
229 | */ | |
230 | buf.Pointer = NULL; | |
231 | buf.Length = ACPI_ALLOCATE_BUFFER; | |
232 | status = AcpiEvaluateObject(handle, "_PCT", NULL, &buf); | |
233 | if (ACPI_FAILURE(status)) { | |
604bd1e4 SZ |
234 | if (bootverbose) { |
235 | device_printf(dev, "Can't get _PCT package - %s\n", | |
236 | AcpiFormatException(status)); | |
237 | } | |
c3a2c0df SZ |
238 | return ENXIO; |
239 | } | |
240 | ||
241 | obj = (ACPI_OBJECT *)buf.Pointer; | |
242 | if (!ACPI_PKG_VALID_EQ(obj, 2)) { | |
243 | device_printf(dev, "Invalid _PCT package\n"); | |
244 | AcpiOsFree(obj); | |
245 | return ENXIO; | |
246 | } | |
247 | AcpiOsFree(obj); | |
248 | ||
249 | /* | |
250 | * Check _PSS package | |
251 | */ | |
252 | buf.Pointer = NULL; | |
253 | buf.Length = ACPI_ALLOCATE_BUFFER; | |
254 | status = AcpiEvaluateObject(handle, "_PSS", NULL, &buf); | |
255 | if (ACPI_FAILURE(status)) { | |
256 | device_printf(dev, "Can't get _PSS package - %s\n", | |
257 | AcpiFormatException(status)); | |
258 | return ENXIO; | |
259 | } | |
260 | ||
261 | obj = (ACPI_OBJECT *)buf.Pointer; | |
262 | if (!ACPI_PKG_VALID(obj, 1)) { | |
263 | device_printf(dev, "Invalid _PSS package\n"); | |
264 | AcpiOsFree(obj); | |
265 | return ENXIO; | |
266 | } | |
267 | AcpiOsFree(obj); | |
268 | ||
269 | device_set_desc(dev, "ACPI CPU P-State"); | |
270 | return 0; | |
271 | } | |
272 | ||
273 | static int | |
274 | acpi_pst_attach(device_t dev) | |
275 | { | |
276 | struct acpi_pst_softc *sc = device_get_softc(dev), *pst; | |
277 | struct acpi_pst_domain *dom = NULL; | |
278 | ACPI_BUFFER buf; | |
279 | ACPI_STATUS status; | |
76418417 | 280 | ACPI_OBJECT *obj; |
c3a2c0df | 281 | struct acpi_pstate *pstate, *p; |
76418417 | 282 | int i, npstate, error; |
c3a2c0df | 283 | |
7b46b972 | 284 | sc->pst_dev = dev; |
c3a2c0df SZ |
285 | sc->pst_parent = device_get_softc(device_get_parent(dev)); |
286 | sc->pst_handle = acpi_get_handle(dev); | |
287 | sc->pst_cpuid = acpi_get_magic(dev); | |
288 | ||
289 | /* | |
290 | * If there is a _PSD, then we create procossor domain | |
291 | * accordingly. If there is no _PSD, we just fake a | |
292 | * default processor domain0. | |
293 | */ | |
294 | buf.Pointer = NULL; | |
295 | buf.Length = ACPI_ALLOCATE_BUFFER; | |
296 | status = AcpiEvaluateObject(sc->pst_handle, "_PSD", NULL, &buf); | |
297 | if (!ACPI_FAILURE(status)) { | |
6ec50a1c SZ |
298 | obj = (ACPI_OBJECT *)buf.Pointer; |
299 | ||
6f36cba1 SZ |
300 | if (acpi_pst_domain_id > 0) { |
301 | device_printf(dev, "Missing _PSD for certain CPUs\n"); | |
302 | AcpiOsFree(obj); | |
303 | return ENXIO; | |
304 | } | |
305 | acpi_pst_domain_id = -1; | |
306 | ||
c3a2c0df | 307 | if (ACPI_PKG_VALID_EQ(obj, 1)) { |
0cb292d1 | 308 | dom = acpi_pst_domain_create_pkg(dev, |
c3a2c0df SZ |
309 | &obj->Package.Elements[0]); |
310 | if (dom == NULL) { | |
311 | AcpiOsFree(obj); | |
312 | return ENXIO; | |
313 | } | |
314 | } else { | |
0cb292d1 SZ |
315 | if (obj->Type != ACPI_TYPE_INTEGER) { |
316 | device_printf(dev, | |
317 | "Invalid _PSD package, Type 0x%x\n", | |
318 | obj->Type); | |
319 | AcpiOsFree(obj); | |
320 | return ENXIO; | |
321 | } else { | |
322 | device_printf(dev, "Integer _PSD %ju\n", | |
323 | (uintmax_t)obj->Integer.Value); | |
324 | dom = acpi_pst_domain_create_int(dev, | |
325 | obj->Integer.Value); | |
326 | if (dom == NULL) { | |
327 | AcpiOsFree(obj); | |
328 | return ENXIO; | |
329 | } | |
330 | } | |
c3a2c0df SZ |
331 | } |
332 | ||
333 | /* Free _PSD */ | |
334 | AcpiOsFree(buf.Pointer); | |
335 | } else { | |
6f36cba1 SZ |
336 | if (acpi_pst_domain_id < 0) { |
337 | device_printf(dev, "Missing _PSD for cpu%d\n", | |
338 | sc->pst_cpuid); | |
339 | return ENXIO; | |
340 | } | |
341 | ||
381b8691 SZ |
342 | /* |
343 | * Create a stub one processor domain for each processor | |
344 | */ | |
345 | dom = acpi_pst_domain_alloc(acpi_pst_domain_id, | |
346 | ACPI_PSD_COORD_SWANY, 1); | |
c3a2c0df | 347 | dom->pd_flags |= ACPI_PSTDOM_FLAG_STUB; |
381b8691 SZ |
348 | |
349 | ++acpi_pst_domain_id; | |
c3a2c0df SZ |
350 | } |
351 | ||
352 | /* Make sure that adding us will not overflow our domain */ | |
353 | i = 0; | |
354 | LIST_FOREACH(pst, &dom->pd_pstlist, pst_link) | |
355 | ++i; | |
356 | if (i == dom->pd_nproc) { | |
357 | device_printf(dev, "Domain%u already contains %d P-States, " | |
358 | "invalid _PSD package\n", | |
359 | dom->pd_dom, dom->pd_nproc); | |
360 | return ENXIO; | |
361 | } | |
2f336f65 | 362 | KKASSERT(i < dom->pd_nproc); |
c3a2c0df SZ |
363 | |
364 | /* | |
365 | * Get control/status registers from _PCT | |
366 | */ | |
367 | buf.Pointer = NULL; | |
368 | buf.Length = ACPI_ALLOCATE_BUFFER; | |
369 | status = AcpiEvaluateObject(sc->pst_handle, "_PCT", NULL, &buf); | |
370 | if (ACPI_FAILURE(status)) { | |
371 | device_printf(dev, "Can't get _PCT package - %s\n", | |
372 | AcpiFormatException(status)); | |
373 | return ENXIO; | |
374 | } | |
375 | ||
376 | obj = (ACPI_OBJECT *)buf.Pointer; | |
377 | if (!ACPI_PKG_VALID_EQ(obj, 2)) { | |
378 | device_printf(dev, "Invalid _PCT package\n"); | |
379 | AcpiOsFree(obj); | |
380 | return ENXIO; | |
381 | } | |
382 | ||
0e276230 SZ |
383 | /* Save and try allocating control register */ |
384 | error = acpi_pst_alloc_resource(dev, obj, 0, &sc->pst_creg); | |
76418417 SZ |
385 | if (error) { |
386 | AcpiOsFree(obj); | |
387 | return error; | |
388 | } | |
c3a2c0df | 389 | if (bootverbose) { |
b6b64e7b | 390 | device_printf(dev, "control reg %d %jx\n", |
10f97674 | 391 | sc->pst_creg.pr_gas.SpaceId, |
b6b64e7b | 392 | (uintmax_t)sc->pst_creg.pr_gas.Address); |
c3a2c0df SZ |
393 | } |
394 | ||
0e276230 SZ |
395 | /* Save and try allocating status register */ |
396 | error = acpi_pst_alloc_resource(dev, obj, 1, &sc->pst_sreg); | |
76418417 SZ |
397 | if (error) { |
398 | AcpiOsFree(obj); | |
399 | return error; | |
400 | } | |
c3a2c0df | 401 | if (bootverbose) { |
b6b64e7b | 402 | device_printf(dev, "status reg %d %jx\n", |
76418417 | 403 | sc->pst_sreg.pr_gas.SpaceId, |
b6b64e7b | 404 | (uintmax_t)sc->pst_sreg.pr_gas.Address); |
c3a2c0df SZ |
405 | } |
406 | ||
407 | /* Free _PCT */ | |
408 | AcpiOsFree(obj); | |
409 | ||
410 | /* | |
411 | * Create P-State table according to _PSS | |
412 | */ | |
413 | buf.Pointer = NULL; | |
414 | buf.Length = ACPI_ALLOCATE_BUFFER; | |
415 | status = AcpiEvaluateObject(sc->pst_handle, "_PSS", NULL, &buf); | |
416 | if (ACPI_FAILURE(status)) { | |
417 | device_printf(dev, "Can't get _PSS package - %s\n", | |
418 | AcpiFormatException(status)); | |
419 | return ENXIO; | |
420 | } | |
421 | ||
422 | obj = (ACPI_OBJECT *)buf.Pointer; | |
423 | if (!ACPI_PKG_VALID(obj, 1)) { | |
424 | device_printf(dev, "Invalid _PSS package\n"); | |
425 | AcpiOsFree(obj); | |
426 | return ENXIO; | |
427 | } | |
428 | ||
429 | /* Don't create too many P-States */ | |
430 | npstate = obj->Package.Count; | |
431 | if (npstate > ACPI_NPSTATE_MAX) { | |
432 | device_printf(dev, "Too many P-States, %d->%d\n", | |
433 | npstate, ACPI_NPSTATE_MAX); | |
434 | npstate = ACPI_NPSTATE_MAX; | |
435 | } | |
436 | ||
437 | /* | |
438 | * If we have already created P-State table, | |
439 | * we must make sure that number of entries | |
440 | * is consistent. | |
441 | */ | |
442 | if (acpi_pstates != NULL && acpi_npstates != npstate) { | |
443 | device_printf(dev, "Inconsistent # of P-States " | |
444 | "cross Processor objects\n"); | |
445 | AcpiOsFree(obj); | |
446 | return ENXIO; | |
447 | } | |
448 | ||
449 | /* | |
450 | * Create a temporary P-State table | |
451 | */ | |
452 | pstate = kmalloc(sizeof(*pstate) * npstate, M_TEMP, M_WAITOK); | |
453 | for (i = 0, p = pstate; i < npstate; ++i, ++p) { | |
454 | ACPI_OBJECT *pkg; | |
455 | uint32_t *ptr[ACPI_PSS_PX_NENTRY] = { | |
456 | &p->st_freq, &p->st_power, &p->st_xsit_lat, | |
457 | &p->st_bm_lat, &p->st_cval, &p->st_sval | |
458 | }; | |
459 | int j; | |
460 | ||
461 | pkg = &obj->Package.Elements[i]; | |
462 | if (!ACPI_PKG_VALID(pkg, ACPI_PSS_PX_NENTRY)) { | |
463 | device_printf(dev, "Invalud _PSS P%d\n", i); | |
464 | AcpiOsFree(obj); | |
465 | kfree(pstate, M_TEMP); | |
466 | return ENXIO; | |
467 | } | |
468 | for (j = 0; j < ACPI_PSS_PX_NENTRY; ++j) { | |
469 | if (acpi_PkgInt32(pkg, j, ptr[j]) != 0) { | |
470 | device_printf(dev, "Can't extract " | |
471 | "_PSS P%d %dth entry\n", i, j); | |
472 | AcpiOsFree(obj); | |
473 | kfree(pstate, M_TEMP); | |
474 | return ENXIO; | |
475 | } | |
476 | } | |
477 | } | |
478 | ||
479 | /* Free _PSS */ | |
480 | AcpiOsFree(obj); | |
481 | ||
482 | if (acpi_pstates == NULL) { | |
483 | /* | |
484 | * If no P-State table is created yet, | |
485 | * save the temporary one we just created. | |
486 | */ | |
487 | acpi_pstates = pstate; | |
488 | acpi_npstates = npstate; | |
489 | pstate = NULL; | |
490 | ||
491 | if (bootverbose) { | |
492 | for (i = 0; i < acpi_npstates; ++i) { | |
493 | device_printf(dev, | |
494 | "freq %u, pwr %u, xlat %u, blat %u, " | |
495 | "cv %08x, sv %08x\n", | |
496 | acpi_pstates[i].st_freq, | |
497 | acpi_pstates[i].st_power, | |
498 | acpi_pstates[i].st_xsit_lat, | |
499 | acpi_pstates[i].st_bm_lat, | |
500 | acpi_pstates[i].st_cval, | |
501 | acpi_pstates[i].st_sval); | |
502 | } | |
503 | } | |
504 | } else { | |
505 | /* | |
506 | * Make sure that P-State tables are same | |
507 | * for all processors. | |
508 | */ | |
509 | if (memcmp(pstate, acpi_pstates, | |
510 | sizeof(*pstate) * npstate) != 0) { | |
511 | device_printf(dev, "Inconsistent _PSS " | |
512 | "cross Processor objects\n"); | |
513 | kfree(pstate, M_TEMP); | |
514 | return ENXIO; | |
515 | } | |
516 | kfree(pstate, M_TEMP); | |
517 | } | |
518 | ||
519 | /* By default, we start from P-State table's first entry */ | |
520 | sc->pst_sstart = 0; | |
521 | ||
522 | /* | |
523 | * Adjust the usable first entry of P-State table, | |
524 | * if there is _PPC object. | |
525 | */ | |
526 | buf.Pointer = NULL; | |
527 | buf.Length = ACPI_ALLOCATE_BUFFER; | |
528 | status = AcpiEvaluateObject(sc->pst_handle, "_PPC", NULL, &buf); | |
529 | if (!ACPI_FAILURE(status)) { | |
530 | obj = (ACPI_OBJECT *)buf.Pointer; | |
531 | if (obj->Type == ACPI_TYPE_INTEGER) { | |
532 | if (obj->Integer.Value >= acpi_npstates) { | |
533 | device_printf(dev, "Invalid _PPC value\n"); | |
534 | AcpiOsFree(obj); | |
535 | return ENXIO; | |
536 | } | |
537 | sc->pst_sstart = obj->Integer.Value; | |
538 | if (bootverbose) | |
539 | device_printf(dev, "_PPC %d\n", sc->pst_sstart); | |
540 | ||
541 | /* TODO: Install notifiy handler */ | |
542 | } else { | |
543 | device_printf(dev, "Invalid _PPC object\n"); | |
544 | AcpiOsFree(obj); | |
545 | return ENXIO; | |
546 | } | |
547 | ||
548 | /* Free _PPC */ | |
549 | AcpiOsFree(obj); | |
550 | } | |
551 | ||
552 | sc->pst_state = sc->pst_sstart; | |
553 | ||
554 | /* Link us with the domain */ | |
555 | sc->pst_domain = dom; | |
556 | LIST_INSERT_HEAD(&dom->pd_pstlist, sc, pst_link); | |
557 | ||
558 | if (device_get_unit(dev) == 0) | |
559 | AcpiOsExecute(OSL_NOTIFY_HANDLER, acpi_pst_postattach, NULL); | |
560 | ||
561 | return 0; | |
562 | } | |
563 | ||
564 | static struct acpi_pst_domain * | |
0cb292d1 | 565 | acpi_pst_domain_create_pkg(device_t dev, ACPI_OBJECT *obj) |
c3a2c0df SZ |
566 | { |
567 | struct acpi_pst_domain *dom; | |
568 | uint32_t val, domain, coord, nproc; | |
569 | ||
570 | if (!ACPI_PKG_VALID_EQ(obj, 5)) { | |
571 | device_printf(dev, "Invalid _PSD package\n"); | |
572 | return NULL; | |
573 | } | |
574 | ||
575 | /* NumberOfEntries */ | |
576 | if (acpi_PkgInt32(obj, 0, &val) != 0 || val != 5) { | |
577 | device_printf(dev, "Invalid _PSD NumberOfEntries\n"); | |
578 | return NULL; | |
579 | } | |
580 | ||
581 | /* Revision */ | |
582 | if (acpi_PkgInt32(obj, 1, &val) != 0 || val != 0) { | |
583 | device_printf(dev, "Invalid _PSD Revision\n"); | |
584 | return NULL; | |
585 | } | |
586 | ||
587 | if (acpi_PkgInt32(obj, 2, &domain) != 0 || | |
588 | acpi_PkgInt32(obj, 3, &coord) != 0 || | |
589 | acpi_PkgInt32(obj, 4, &nproc) != 0) { | |
590 | device_printf(dev, "Can't extract _PSD package\n"); | |
591 | return NULL; | |
592 | } | |
593 | ||
2f336f65 SZ |
594 | if (!ACPI_PSD_COORD_VALID(coord)) { |
595 | device_printf(dev, "Invalid _PSD CoordType (%#x)\n", coord); | |
c3a2c0df SZ |
596 | return NULL; |
597 | } | |
598 | ||
2f336f65 SZ |
599 | if (nproc > MAXCPU) { |
600 | /* | |
601 | * If NumProcessors is greater than MAXCPU | |
602 | * and domain's coordination is SWALL, then | |
603 | * we will never be able to start all CPUs | |
604 | * within this domain, and power state | |
605 | * transition will never be completed, so we | |
606 | * just bail out here. | |
607 | */ | |
608 | if (coord == ACPI_PSD_COORD_SWALL) { | |
609 | device_printf(dev, "Unsupported _PSD NumProcessors " | |
610 | "(%d)\n", nproc); | |
611 | return NULL; | |
612 | } | |
613 | } else if (nproc == 0) { | |
614 | device_printf(dev, "_PSD NumProcessors are zero\n"); | |
c3a2c0df SZ |
615 | return NULL; |
616 | } | |
617 | ||
618 | dom = acpi_pst_domain_find(domain); | |
619 | if (dom != NULL) { | |
0cb292d1 SZ |
620 | if (dom->pd_flags & ACPI_PSTDOM_FLAG_INT) { |
621 | device_printf(dev, "Mixed Integer _PSD and " | |
622 | "Package _PSD\n"); | |
623 | return NULL; | |
624 | } | |
c3a2c0df SZ |
625 | if (dom->pd_coord != coord || dom->pd_nproc != nproc) { |
626 | device_printf(dev, "Inconsistent _PSD information " | |
627 | "cross Processor objects\n"); | |
628 | return NULL; | |
629 | } | |
630 | return dom; | |
631 | } | |
632 | ||
633 | dom = acpi_pst_domain_alloc(domain, coord, nproc); | |
95b6142f SZ |
634 | if (bootverbose) { |
635 | device_printf(dev, "create pkg domain%u, coord %#x\n", | |
636 | dom->pd_dom, dom->pd_coord); | |
637 | } | |
0cb292d1 SZ |
638 | |
639 | return dom; | |
640 | } | |
641 | ||
642 | static struct acpi_pst_domain * | |
643 | acpi_pst_domain_create_int(device_t dev, uint32_t domain) | |
644 | { | |
645 | struct acpi_pst_domain *dom; | |
646 | ||
647 | dom = acpi_pst_domain_find(domain); | |
648 | if (dom != NULL) { | |
649 | if ((dom->pd_flags & ACPI_PSTDOM_FLAG_INT) == 0) { | |
650 | device_printf(dev, "Mixed Package _PSD and " | |
651 | "Integer _PSD\n"); | |
652 | return NULL; | |
653 | } | |
654 | KKASSERT(dom->pd_coord == ACPI_PSD_COORD_SWALL); | |
655 | ||
656 | dom->pd_nproc++; | |
657 | return dom; | |
658 | } | |
659 | ||
660 | dom = acpi_pst_domain_alloc(domain, ACPI_PSD_COORD_SWALL, 1); | |
661 | dom->pd_flags |= ACPI_PSTDOM_FLAG_INT; | |
662 | ||
663 | if (bootverbose) | |
664 | device_printf(dev, "create int domain%u\n", dom->pd_dom); | |
c3a2c0df SZ |
665 | |
666 | return dom; | |
667 | } | |
668 | ||
669 | static struct acpi_pst_domain * | |
670 | acpi_pst_domain_find(uint32_t domain) | |
671 | { | |
672 | struct acpi_pst_domain *dom; | |
673 | ||
674 | LIST_FOREACH(dom, &acpi_pst_domains, pd_link) { | |
675 | if (dom->pd_flags & ACPI_PSTDOM_FLAG_STUB) | |
676 | continue; | |
677 | if (dom->pd_dom == domain) | |
678 | return dom; | |
679 | } | |
680 | return NULL; | |
681 | } | |
682 | ||
683 | static struct acpi_pst_domain * | |
684 | acpi_pst_domain_alloc(uint32_t domain, uint32_t coord, uint32_t nproc) | |
685 | { | |
686 | struct acpi_pst_domain *dom; | |
687 | ||
688 | dom = kmalloc(sizeof(*dom), M_DEVBUF, M_WAITOK | M_ZERO); | |
689 | dom->pd_dom = domain; | |
690 | dom->pd_coord = coord; | |
691 | dom->pd_nproc = nproc; | |
692 | dom->pd_state = 0; /* XXX */ | |
693 | dom->pd_sstart = 0; /* XXX */ | |
694 | LIST_INIT(&dom->pd_pstlist); | |
695 | ||
696 | LIST_INSERT_HEAD(&acpi_pst_domains, dom, pd_link); | |
697 | ||
698 | return dom; | |
699 | } | |
700 | ||
7b46b972 SZ |
701 | static int |
702 | acpi_pst_domain_set_pstate(struct acpi_pst_domain *dom, int i) | |
703 | { | |
704 | const struct acpi_pstate *pstate; | |
705 | struct acpi_pst_softc *sc; | |
706 | int done, error; | |
707 | ||
708 | KKASSERT(i >= 0 && i < acpi_npstates); | |
709 | pstate = &acpi_pstates[i]; | |
710 | ||
711 | done = 0; | |
712 | LIST_FOREACH(sc, &dom->pd_pstlist, pst_link) { | |
713 | if (!done) { | |
714 | error = acpi_pst_set_pstate(sc, pstate); | |
715 | if (error) { | |
716 | device_printf(sc->pst_dev, "can't set " | |
717 | "freq %d\n", pstate->st_freq); | |
718 | /* XXX error cleanup? */ | |
719 | } | |
720 | if (dom->pd_coord == ACPI_PSD_COORD_SWANY) | |
721 | done = 1; | |
722 | } | |
723 | sc->pst_state = i; | |
724 | } | |
725 | dom->pd_state = i; | |
726 | ||
727 | return 0; | |
728 | } | |
729 | ||
446b8384 SZ |
730 | static int |
731 | acpi_pst_global_set_pstate(int i) | |
732 | { | |
733 | struct acpi_pst_domain *dom; | |
734 | ||
735 | LIST_FOREACH(dom, &acpi_pst_domains, pd_link) { | |
736 | /* Skip dead domain */ | |
737 | if (dom->pd_flags & ACPI_PSTDOM_FLAG_DEAD) | |
738 | continue; | |
739 | acpi_pst_domain_set_pstate(dom, i); | |
740 | } | |
741 | acpi_pst_global_state = i; | |
742 | ||
743 | return 0; | |
744 | } | |
745 | ||
c3a2c0df SZ |
746 | static void |
747 | acpi_pst_postattach(void *arg __unused) | |
748 | { | |
749 | struct acpi_pst_domain *dom; | |
750 | struct acpi_cpux_softc *cpux; | |
751 | device_t *devices; | |
446b8384 | 752 | int i, ndevices, error, has_domain, sstate; |
c3a2c0df SZ |
753 | |
754 | devices = NULL; | |
755 | ndevices = 0; | |
7b46b972 SZ |
756 | error = devclass_get_devices(acpi_pst_devclass, &devices, &ndevices); |
757 | if (error) | |
758 | return; | |
759 | ||
c3a2c0df SZ |
760 | if (ndevices == 0) |
761 | return; | |
762 | ||
763 | cpux = NULL; | |
764 | for (i = 0; i < ndevices; ++i) { | |
765 | cpux = device_get_softc(device_get_parent(devices[i])); | |
766 | if (cpux->glob_sysctl_tree != NULL) | |
767 | break; | |
768 | } | |
769 | kfree(devices, M_TEMP); | |
770 | KKASSERT(cpux != NULL); | |
771 | ||
7b46b972 SZ |
772 | if (acpi_pst_md == NULL) |
773 | kprintf("ACPI: no P-State CPU driver\n"); | |
774 | ||
446b8384 | 775 | sstate = 0x7fffffff; |
7b46b972 | 776 | has_domain = 0; |
c3a2c0df SZ |
777 | LIST_FOREACH(dom, &acpi_pst_domains, pd_link) { |
778 | struct acpi_pst_softc *sc; | |
779 | char buf[32]; | |
780 | ||
7b46b972 SZ |
781 | /* |
782 | * Make sure that all processors belonging to this | |
783 | * domain are located. | |
784 | */ | |
c3a2c0df SZ |
785 | i = 0; |
786 | LIST_FOREACH(sc, &dom->pd_pstlist, pst_link) | |
787 | ++i; | |
788 | if (i != dom->pd_nproc) { | |
2f336f65 SZ |
789 | KKASSERT(i < dom->pd_nproc); |
790 | ||
7b46b972 SZ |
791 | kprintf("ACPI: domain%u misses processors, " |
792 | "should be %d, got %d\n", dom->pd_dom, | |
793 | dom->pd_nproc, i); | |
2f336f65 SZ |
794 | if (dom->pd_coord == ACPI_PSD_COORD_SWALL) { |
795 | /* | |
796 | * If this domain's coordination is | |
797 | * SWALL and we don't see all of the | |
798 | * member CPUs of this domain, then | |
799 | * the P-State transition will never | |
800 | * be completed, so just leave this | |
801 | * domain out. | |
802 | */ | |
803 | dom->pd_flags |= ACPI_PSTDOM_FLAG_DEAD; | |
804 | continue; | |
805 | } | |
806 | dom->pd_nproc = i; | |
7b46b972 SZ |
807 | } |
808 | ||
809 | /* | |
810 | * Validate P-State configurations for this domain | |
811 | */ | |
812 | LIST_FOREACH(sc, &dom->pd_pstlist, pst_link) { | |
813 | error = acpi_pst_check_csr(sc); | |
814 | if (error) | |
815 | break; | |
816 | ||
817 | error = acpi_pst_check_pstates(sc); | |
818 | if (error) | |
819 | break; | |
820 | } | |
821 | if (sc != NULL) { | |
822 | kprintf("ACPI: domain%u P-State configuration " | |
823 | "check failed\n", dom->pd_dom); | |
824 | dom->pd_flags |= ACPI_PSTDOM_FLAG_DEAD; | |
c3a2c0df SZ |
825 | continue; |
826 | } | |
7b46b972 | 827 | |
c5479e60 SZ |
828 | /* |
829 | * Do necssary P-State initialization | |
830 | */ | |
831 | LIST_FOREACH(sc, &dom->pd_pstlist, pst_link) { | |
832 | error = acpi_pst_init(sc); | |
833 | if (error) | |
834 | break; | |
835 | } | |
836 | if (sc != NULL) { | |
837 | kprintf("ACPI: domain%u P-State initialization " | |
838 | "check failed\n", dom->pd_dom); | |
839 | dom->pd_flags |= ACPI_PSTDOM_FLAG_DEAD; | |
840 | continue; | |
841 | } | |
842 | ||
7b46b972 SZ |
843 | has_domain = 1; |
844 | ||
c3a2c0df SZ |
845 | ksnprintf(buf, sizeof(buf), "px_dom%u", dom->pd_dom); |
846 | ||
847 | sysctl_ctx_init(&dom->pd_sysctl_ctx); | |
848 | dom->pd_sysctl_tree = | |
849 | SYSCTL_ADD_NODE(&dom->pd_sysctl_ctx, | |
850 | SYSCTL_CHILDREN(cpux->glob_sysctl_tree), | |
851 | OID_AUTO, buf, CTLFLAG_RD, 0, | |
852 | "P-State domain"); | |
7b46b972 SZ |
853 | if (dom->pd_sysctl_tree == NULL) { |
854 | kprintf("ACPI: Can't create sysctl tree for domain%u", | |
855 | dom->pd_dom); | |
c3a2c0df | 856 | continue; |
7b46b972 | 857 | } |
c3a2c0df SZ |
858 | |
859 | SYSCTL_ADD_PROC(&dom->pd_sysctl_ctx, | |
860 | SYSCTL_CHILDREN(dom->pd_sysctl_tree), | |
861 | OID_AUTO, "available", | |
862 | CTLTYPE_STRING | CTLFLAG_RD, | |
863 | dom, 0, acpi_pst_sysctl_freqs, "A", | |
864 | "available frequencies"); | |
865 | ||
866 | SYSCTL_ADD_PROC(&dom->pd_sysctl_ctx, | |
867 | SYSCTL_CHILDREN(dom->pd_sysctl_tree), | |
868 | OID_AUTO, "members", | |
869 | CTLTYPE_STRING | CTLFLAG_RD, | |
870 | dom, 0, acpi_pst_sysctl_members, "A", | |
871 | "member cpus"); | |
7b46b972 SZ |
872 | |
873 | if (acpi_pst_md != NULL && | |
874 | acpi_pst_md->pmd_set_pstate != NULL) { | |
875 | SYSCTL_ADD_PROC(&dom->pd_sysctl_ctx, | |
876 | SYSCTL_CHILDREN(dom->pd_sysctl_tree), | |
877 | OID_AUTO, "select", | |
878 | CTLTYPE_UINT | CTLFLAG_RW, | |
879 | dom, 0, acpi_pst_sysctl_select, | |
880 | "IU", "select freq"); | |
881 | } | |
446b8384 SZ |
882 | |
883 | if (dom->pd_state < sstate) | |
884 | sstate = dom->pd_state; | |
7b46b972 SZ |
885 | } |
886 | ||
887 | if (has_domain && acpi_pst_md != NULL && | |
888 | acpi_pst_md->pmd_set_pstate != NULL) { | |
889 | SYSCTL_ADD_PROC(&cpux->glob_sysctl_ctx, | |
890 | SYSCTL_CHILDREN(cpux->glob_sysctl_tree), | |
891 | OID_AUTO, "px_global", | |
892 | CTLTYPE_UINT | CTLFLAG_RW, | |
893 | NULL, 0, acpi_pst_sysctl_global, | |
894 | "IU", "select freq for all domains"); | |
446b8384 SZ |
895 | |
896 | acpi_pst_global_set_pstate(sstate); | |
c3a2c0df SZ |
897 | } |
898 | } | |
899 | ||
900 | static int | |
901 | acpi_pst_sysctl_freqs(SYSCTL_HANDLER_ARGS) | |
902 | { | |
903 | struct acpi_pst_domain *dom = arg1; | |
904 | int i, error; | |
905 | ||
906 | error = 0; | |
907 | for (i = 0; i < acpi_npstates; ++i) { | |
908 | if (error == 0 && i) | |
909 | error = SYSCTL_OUT(req, " ", 1); | |
910 | if (error == 0) { | |
911 | const char *pat; | |
912 | char buf[32]; | |
913 | ||
914 | if (i < dom->pd_sstart) | |
915 | pat = "(%u)"; | |
916 | else | |
917 | pat = "%u"; | |
918 | ||
919 | ksnprintf(buf, sizeof(buf), pat, | |
920 | acpi_pstates[i].st_freq); | |
921 | error = SYSCTL_OUT(req, buf, strlen(buf)); | |
922 | } | |
923 | } | |
924 | return error; | |
925 | } | |
926 | ||
927 | static int | |
928 | acpi_pst_sysctl_members(SYSCTL_HANDLER_ARGS) | |
929 | { | |
930 | struct acpi_pst_domain *dom = arg1; | |
7b46b972 | 931 | struct acpi_pst_softc *sc; |
c3a2c0df SZ |
932 | int loop, error; |
933 | ||
934 | loop = error = 0; | |
935 | LIST_FOREACH(sc, &dom->pd_pstlist, pst_link) { | |
7b46b972 SZ |
936 | char buf[32]; |
937 | ||
c3a2c0df SZ |
938 | if (error == 0 && loop) |
939 | error = SYSCTL_OUT(req, " ", 1); | |
940 | if (error == 0) { | |
c3a2c0df SZ |
941 | ksnprintf(buf, sizeof(buf), "cpu%d", sc->pst_cpuid); |
942 | error = SYSCTL_OUT(req, buf, strlen(buf)); | |
943 | } | |
7b46b972 SZ |
944 | |
945 | if (error == 0 && acpi_pst_md && acpi_pst_md->pmd_get_pstate) { | |
946 | const struct acpi_pstate *pstate; | |
947 | const char *str; | |
948 | ||
949 | pstate = acpi_pst_get_pstate(sc); | |
950 | if (pstate == NULL) { | |
951 | str = "(*)"; | |
952 | } else { | |
953 | ksnprintf(buf, sizeof(buf), "(%d)", | |
954 | pstate->st_freq); | |
955 | str = buf; | |
956 | } | |
957 | error = SYSCTL_OUT(req, str, strlen(str)); | |
958 | } | |
c3a2c0df SZ |
959 | ++loop; |
960 | } | |
961 | return error; | |
962 | } | |
7b46b972 SZ |
963 | |
964 | static int | |
965 | acpi_pst_sysctl_select(SYSCTL_HANDLER_ARGS) | |
966 | { | |
967 | struct acpi_pst_domain *dom = arg1; | |
968 | int error, i, freq; | |
969 | ||
970 | KKASSERT(dom->pd_state >= 0 && dom->pd_state < acpi_npstates); | |
971 | ||
972 | freq = acpi_pstates[dom->pd_state].st_freq; | |
973 | ||
974 | error = sysctl_handle_int(oidp, &freq, 0, req); | |
975 | if (error || req->newptr == NULL) | |
976 | return error; | |
977 | ||
978 | i = acpi_pst_freq2index(freq); | |
979 | if (i < 0) | |
980 | return EINVAL; | |
981 | ||
982 | acpi_pst_domain_set_pstate(dom, i); | |
983 | return 0; | |
984 | } | |
985 | ||
986 | static int | |
987 | acpi_pst_sysctl_global(SYSCTL_HANDLER_ARGS) | |
988 | { | |
7b46b972 SZ |
989 | int error, i, freq; |
990 | ||
991 | KKASSERT(acpi_pst_global_state >= 0 && | |
992 | acpi_pst_global_state < acpi_npstates); | |
993 | ||
994 | freq = acpi_pstates[acpi_pst_global_state].st_freq; | |
995 | ||
996 | error = sysctl_handle_int(oidp, &freq, 0, req); | |
997 | if (error || req->newptr == NULL) | |
998 | return error; | |
999 | ||
1000 | i = acpi_pst_freq2index(freq); | |
1001 | if (i < 0) | |
1002 | return EINVAL; | |
1003 | ||
446b8384 | 1004 | acpi_pst_global_set_pstate(i); |
7b46b972 SZ |
1005 | |
1006 | return 0; | |
1007 | } | |
1008 | ||
1009 | static void | |
002c1265 | 1010 | acpi_pst_check_csr_handler(netmsg_t msg) |
7b46b972 | 1011 | { |
002c1265 | 1012 | struct netmsg_acpi_pst *rmsg = (struct netmsg_acpi_pst *)msg; |
7b46b972 SZ |
1013 | int error; |
1014 | ||
002c1265 MD |
1015 | error = acpi_pst_md->pmd_check_csr(rmsg->ctrl, rmsg->status); |
1016 | lwkt_replymsg(&rmsg->base.lmsg, error); | |
7b46b972 SZ |
1017 | } |
1018 | ||
1019 | static int | |
1020 | acpi_pst_check_csr(struct acpi_pst_softc *sc) | |
1021 | { | |
1022 | struct netmsg_acpi_pst msg; | |
1023 | ||
1024 | if (acpi_pst_md == NULL) | |
1025 | return 0; | |
1026 | ||
002c1265 | 1027 | netmsg_init(&msg.base, NULL, &curthread->td_msgport, |
c3c96e44 | 1028 | MSGF_PRIORITY, acpi_pst_check_csr_handler); |
7b46b972 SZ |
1029 | msg.ctrl = &sc->pst_creg; |
1030 | msg.status = &sc->pst_sreg; | |
1031 | ||
002c1265 | 1032 | return lwkt_domsg(cpu_portfn(sc->pst_cpuid), &msg.base.lmsg, 0); |
7b46b972 SZ |
1033 | } |
1034 | ||
1035 | static void | |
002c1265 | 1036 | acpi_pst_check_pstates_handler(netmsg_t msg) |
7b46b972 SZ |
1037 | { |
1038 | int error; | |
1039 | ||
1040 | error = acpi_pst_md->pmd_check_pstates(acpi_pstates, acpi_npstates); | |
002c1265 | 1041 | lwkt_replymsg(&msg->lmsg, error); |
7b46b972 SZ |
1042 | } |
1043 | ||
1044 | static int | |
1045 | acpi_pst_check_pstates(struct acpi_pst_softc *sc) | |
1046 | { | |
002c1265 | 1047 | struct netmsg_base msg; |
7b46b972 SZ |
1048 | |
1049 | if (acpi_pst_md == NULL) | |
1050 | return 0; | |
1051 | ||
002c1265 | 1052 | netmsg_init(&msg, NULL, &curthread->td_msgport, |
c3c96e44 | 1053 | MSGF_PRIORITY, acpi_pst_check_pstates_handler); |
7b46b972 | 1054 | |
002c1265 | 1055 | return lwkt_domsg(cpu_portfn(sc->pst_cpuid), &msg.lmsg, 0); |
7b46b972 SZ |
1056 | } |
1057 | ||
c5479e60 | 1058 | static void |
002c1265 | 1059 | acpi_pst_init_handler(netmsg_t msg) |
c5479e60 | 1060 | { |
002c1265 | 1061 | struct netmsg_acpi_pst *rmsg = (struct netmsg_acpi_pst *)msg; |
c5479e60 SZ |
1062 | int error; |
1063 | ||
002c1265 MD |
1064 | error = acpi_pst_md->pmd_init(rmsg->ctrl, rmsg->status); |
1065 | lwkt_replymsg(&rmsg->base.lmsg, error); | |
c5479e60 SZ |
1066 | } |
1067 | ||
1068 | static int | |
1069 | acpi_pst_init(struct acpi_pst_softc *sc) | |
1070 | { | |
1071 | struct netmsg_acpi_pst msg; | |
1072 | ||
1073 | if (acpi_pst_md == NULL) | |
1074 | return 0; | |
1075 | ||
002c1265 | 1076 | netmsg_init(&msg.base, NULL, &curthread->td_msgport, |
c3c96e44 | 1077 | MSGF_PRIORITY, acpi_pst_init_handler); |
c5479e60 SZ |
1078 | msg.ctrl = &sc->pst_creg; |
1079 | msg.status = &sc->pst_sreg; | |
1080 | ||
002c1265 | 1081 | return lwkt_domsg(cpu_portfn(sc->pst_cpuid), &msg.base.lmsg, 0); |
c5479e60 SZ |
1082 | } |
1083 | ||
7b46b972 | 1084 | static void |
002c1265 | 1085 | acpi_pst_set_pstate_handler(netmsg_t msg) |
7b46b972 | 1086 | { |
002c1265 | 1087 | struct netmsg_acpi_pst *rmsg = (struct netmsg_acpi_pst *)msg; |
7b46b972 SZ |
1088 | int error; |
1089 | ||
002c1265 MD |
1090 | error = acpi_pst_md->pmd_set_pstate(rmsg->ctrl, rmsg->status, |
1091 | rmsg->base.lmsg.u.ms_resultp); | |
1092 | lwkt_replymsg(&rmsg->base.lmsg, error); | |
7b46b972 SZ |
1093 | } |
1094 | ||
1095 | static int | |
1096 | acpi_pst_set_pstate(struct acpi_pst_softc *sc, const struct acpi_pstate *pstate) | |
1097 | { | |
1098 | struct netmsg_acpi_pst msg; | |
1099 | ||
1100 | KKASSERT(acpi_pst_md != NULL); | |
1101 | ||
002c1265 | 1102 | netmsg_init(&msg.base, NULL, &curthread->td_msgport, |
c3c96e44 | 1103 | MSGF_PRIORITY, acpi_pst_set_pstate_handler); |
002c1265 | 1104 | msg.base.lmsg.u.ms_resultp = __DECONST(void *, pstate); |
7b46b972 SZ |
1105 | msg.ctrl = &sc->pst_creg; |
1106 | msg.status = &sc->pst_sreg; | |
1107 | ||
002c1265 | 1108 | return lwkt_domsg(cpu_portfn(sc->pst_cpuid), &msg.base.lmsg, 0); |
7b46b972 SZ |
1109 | } |
1110 | ||
1111 | static void | |
002c1265 | 1112 | acpi_pst_get_pstate_handler(netmsg_t msg) |
7b46b972 | 1113 | { |
002c1265 | 1114 | struct netmsg_acpi_pst *rmsg = (struct netmsg_acpi_pst *)msg; |
7b46b972 SZ |
1115 | const struct acpi_pstate *pstate; |
1116 | ||
002c1265 | 1117 | pstate = acpi_pst_md->pmd_get_pstate(rmsg->status, acpi_pstates, |
7b46b972 | 1118 | acpi_npstates); |
002c1265 MD |
1119 | rmsg->base.lmsg.u.ms_resultp = __DECONST(void *, pstate); |
1120 | lwkt_replymsg(&rmsg->base.lmsg, 0); | |
7b46b972 SZ |
1121 | } |
1122 | ||
1123 | static const struct acpi_pstate * | |
1124 | acpi_pst_get_pstate(struct acpi_pst_softc *sc) | |
1125 | { | |
1126 | struct netmsg_acpi_pst msg; | |
1127 | ||
1128 | if (acpi_pst_md == NULL) | |
1129 | return 0; | |
1130 | ||
002c1265 | 1131 | netmsg_init(&msg.base, NULL, &curthread->td_msgport, |
c3c96e44 | 1132 | MSGF_PRIORITY, acpi_pst_get_pstate_handler); |
7b46b972 SZ |
1133 | msg.status = &sc->pst_sreg; |
1134 | ||
002c1265 MD |
1135 | lwkt_domsg(cpu_portfn(sc->pst_cpuid), &msg.base.lmsg, 0); |
1136 | return msg.base.lmsg.u.ms_resultp; | |
7b46b972 | 1137 | } |
0e276230 SZ |
1138 | |
1139 | static int | |
1140 | acpi_pst_alloc_resource(device_t dev, ACPI_OBJECT *obj, int idx, | |
1141 | struct acpi_pst_res *res) | |
1142 | { | |
1143 | struct acpi_pst_softc *sc = device_get_softc(dev); | |
10f97674 | 1144 | int error, type; |
0e276230 SZ |
1145 | |
1146 | /* Save GAS */ | |
1147 | error = acpi_PkgRawGas(obj, idx, &res->pr_gas); | |
1148 | if (error) | |
1149 | return error; | |
1150 | ||
1151 | /* Allocate resource, if possible */ | |
1152 | res->pr_rid = sc->pst_parent->cpux_next_rid; | |
10f97674 | 1153 | acpi_bus_alloc_gas(dev, &type, &res->pr_rid, &res->pr_gas, &res->pr_res, 0); |
0e276230 SZ |
1154 | if (res->pr_res != NULL) { |
1155 | sc->pst_parent->cpux_next_rid++; | |
1156 | res->pr_bt = rman_get_bustag(res->pr_res); | |
1157 | res->pr_bh = rman_get_bushandle(res->pr_res); | |
1158 | } else { | |
1159 | res->pr_rid = 0; | |
1160 | } | |
1161 | return 0; | |
1162 | } |