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authorGeoff Levand <geoffrey.levand@am.sony.com>2007-02-07 15:20:01 -0500
committerPaul Mackerras <paulus@samba.org>2007-02-15 22:00:19 -0500
commitfde5efd0e50e026f3f69629fc5790a4f0533dcaa (patch)
tree865d49e09e04691a9e66c5cb75f14862bee311ed
parentea1547d31153f8c3bdd32646f17d096d3108c838 (diff)
[POWERPC] PS3: System manager support
Add PS3 system manager support and the ppc_md routines restart() and power_off(). The system manager provides an event notification mechanism for reporting events like thermal alert and button presses. It also provides support to control system shutdown and startup. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
-rw-r--r--arch/powerpc/platforms/ps3/Kconfig10
-rw-r--r--arch/powerpc/platforms/ps3/setup.c27
-rw-r--r--drivers/ps3/Makefile1
-rw-r--r--drivers/ps3/sys-manager.c604
-rw-r--r--include/asm-powerpc/ps3.h5
5 files changed, 643 insertions, 4 deletions
diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig
index 4be3943d1c0d..d270a1e374d5 100644
--- a/arch/powerpc/platforms/ps3/Kconfig
+++ b/arch/powerpc/platforms/ps3/Kconfig
@@ -62,4 +62,14 @@ config PS3_PS3AV
62 This support is required for graphics and sound. In 62 This support is required for graphics and sound. In
63 general, all users will say Y or M. 63 general, all users will say Y or M.
64 64
65config PS3_SYS_MANAGER
66 bool "PS3 System Manager driver"
67 select PS3_VUART
68 default y
69 help
70 Include support for the PS3 System Manager.
71
72 This support is required for system control. In
73 general, all users will say Y.
74
65endmenu 75endmenu
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
index 13d669a8ecae..ac5df9688dcb 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -42,6 +42,10 @@
42#define DBG(fmt...) do{if(0)printk(fmt);}while(0) 42#define DBG(fmt...) do{if(0)printk(fmt);}while(0)
43#endif 43#endif
44 44
45#if !defined(CONFIG_SMP)
46static void smp_send_stop(void) {}
47#endif
48
45int ps3_get_firmware_version(union ps3_firmware_version *v) 49int ps3_get_firmware_version(union ps3_firmware_version *v)
46{ 50{
47 int result = lv1_get_version_info(&v->raw); 51 int result = lv1_get_version_info(&v->raw);
@@ -66,22 +70,35 @@ static void ps3_power_save(void)
66 lv1_pause(0); 70 lv1_pause(0);
67} 71}
68 72
73static void ps3_restart(char *cmd)
74{
75 DBG("%s:%d cmd '%s'\n", __func__, __LINE__, cmd);
76
77 smp_send_stop();
78 ps3_sys_manager_restart(); /* never returns */
79}
80
81static void ps3_power_off(void)
82{
83 DBG("%s:%d\n", __func__, __LINE__);
84
85 smp_send_stop();
86 ps3_sys_manager_power_off(); /* never returns */
87}
88
69static void ps3_panic(char *str) 89static void ps3_panic(char *str)
70{ 90{
71 DBG("%s:%d %s\n", __func__, __LINE__, str); 91 DBG("%s:%d %s\n", __func__, __LINE__, str);
72 92
73#ifdef CONFIG_SMP
74 smp_send_stop(); 93 smp_send_stop();
75#endif
76 printk("\n"); 94 printk("\n");
77 printk(" System does not reboot automatically.\n"); 95 printk(" System does not reboot automatically.\n");
78 printk(" Please press POWER button.\n"); 96 printk(" Please press POWER button.\n");
79 printk("\n"); 97 printk("\n");
80 98
81 for (;;) ; 99 while(1);
82} 100}
83 101
84
85static void prealloc(struct ps3_prealloc *p) 102static void prealloc(struct ps3_prealloc *p)
86{ 103{
87 if (!p->size) 104 if (!p->size)
@@ -219,6 +236,8 @@ define_machine(ps3) {
219 .get_rtc_time = ps3_get_rtc_time, 236 .get_rtc_time = ps3_get_rtc_time,
220 .calibrate_decr = ps3_calibrate_decr, 237 .calibrate_decr = ps3_calibrate_decr,
221 .progress = ps3_progress, 238 .progress = ps3_progress,
239 .restart = ps3_restart,
240 .power_off = ps3_power_off,
222#if defined(CONFIG_KEXEC) 241#if defined(CONFIG_KEXEC)
223 .kexec_cpu_down = ps3_kexec_cpu_down, 242 .kexec_cpu_down = ps3_kexec_cpu_down,
224 .machine_kexec = ps3_machine_kexec, 243 .machine_kexec = ps3_machine_kexec,
diff --git a/drivers/ps3/Makefile b/drivers/ps3/Makefile
index 96958c03cf61..e251d1c1171c 100644
--- a/drivers/ps3/Makefile
+++ b/drivers/ps3/Makefile
@@ -1,2 +1,3 @@
1obj-$(CONFIG_PS3_VUART) += vuart.o 1obj-$(CONFIG_PS3_VUART) += vuart.o
2obj-$(CONFIG_PS3_PS3AV) += ps3av.o ps3av_cmd.o 2obj-$(CONFIG_PS3_PS3AV) += ps3av.o ps3av_cmd.o
3obj-$(CONFIG_PS3_SYS_MANAGER) += sys-manager.o
diff --git a/drivers/ps3/sys-manager.c b/drivers/ps3/sys-manager.c
new file mode 100644
index 000000000000..0fc30be8b81e
--- /dev/null
+++ b/drivers/ps3/sys-manager.c
@@ -0,0 +1,604 @@
1/*
2 * PS3 System Manager.
3 *
4 * Copyright (C) 2007 Sony Computer Entertainment Inc.
5 * Copyright 2007 Sony Corp.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; version 2 of the License.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21#include <linux/kernel.h>
22#include <linux/module.h>
23#include <linux/workqueue.h>
24#include <linux/reboot.h>
25#include <asm/ps3.h>
26#include "vuart.h"
27
28MODULE_AUTHOR("Sony Corporation");
29MODULE_LICENSE("GPL v2");
30MODULE_DESCRIPTION("PS3 System Manager");
31
32/**
33 * ps3_sys_manager - PS3 system manager driver.
34 *
35 * The system manager provides an asyncronous system event notification
36 * mechanism for reporting events like thermal alert and button presses to
37 * guests. It also provides support to control system shutdown and startup.
38 *
39 * The actual system manager is implemented as an application running in the
40 * system policy module in lpar_1. Guests communicate with the system manager
41 * through port 2 of the vuart using a simple packet message protocol.
42 * Messages are comprised of a fixed field header followed by a message
43 * specific payload.
44 */
45
46/**
47 * struct ps3_sys_manager_header - System manager message header.
48 * @version: Header version, currently 1.
49 * @size: Header size in bytes, curently 16.
50 * @payload_size: Message payload size in bytes.
51 * @service_id: Message type, one of enum ps3_sys_manager_service_id.
52 */
53
54struct ps3_sys_manager_header {
55 /* version 1 */
56 u8 version;
57 u8 size;
58 u16 reserved_1;
59 u32 payload_size;
60 u16 service_id;
61 u16 reserved_2[3];
62};
63
64/**
65 * @PS3_SM_RX_MSG_LEN - System manager received message length.
66 *
67 * Currently all messages received from the system manager are the same length
68 * (16 bytes header + 16 bytes payload = 32 bytes). This knowlege is used to
69 * simplify the logic.
70 */
71
72enum {
73 PS3_SM_RX_MSG_LEN = 32,
74};
75
76/**
77 * enum ps3_sys_manager_service_id - Message header service_id.
78 * @PS3_SM_SERVICE_ID_REQUEST: guest --> sys_manager.
79 * @PS3_SM_SERVICE_ID_COMMAND: guest <-- sys_manager.
80 * @PS3_SM_SERVICE_ID_RESPONSE: guest --> sys_manager.
81 * @PS3_SM_SERVICE_ID_SET_ATTR: guest --> sys_manager.
82 * @PS3_SM_SERVICE_ID_EXTERN_EVENT: guest <-- sys_manager.
83 * @PS3_SM_SERVICE_ID_SET_NEXT_OP: guest --> sys_manager.
84 */
85
86enum ps3_sys_manager_service_id {
87 /* version 1 */
88 PS3_SM_SERVICE_ID_REQUEST = 1,
89 PS3_SM_SERVICE_ID_RESPONSE = 2,
90 PS3_SM_SERVICE_ID_COMMAND = 3,
91 PS3_SM_SERVICE_ID_EXTERN_EVENT = 4,
92 PS3_SM_SERVICE_ID_SET_NEXT_OP = 5,
93 PS3_SM_SERVICE_ID_SET_ATTR = 8,
94};
95
96/**
97 * enum ps3_sys_manager_attr - Notification attribute (bit position mask).
98 * @PS3_SM_ATTR_POWER: Power button.
99 * @PS3_SM_ATTR_RESET: Reset button, not available on retail console.
100 * @PS3_SM_ATTR_THERMAL: Sytem thermal alert.
101 * @PS3_SM_ATTR_CONTROLLER: Remote controller event.
102 * @PS3_SM_ATTR_ALL: Logical OR of all.
103 *
104 * The guest tells the system manager which events it is interested in receiving
105 * notice of by sending the system manager a logical OR of notification
106 * attributes via the ps3_sys_manager_send_attr() routine.
107 */
108
109enum ps3_sys_manager_attr {
110 /* version 1 */
111 PS3_SM_ATTR_POWER = 1,
112 PS3_SM_ATTR_RESET = 2,
113 PS3_SM_ATTR_THERMAL = 4,
114 PS3_SM_ATTR_CONTROLLER = 8, /* bogus? */
115 PS3_SM_ATTR_ALL = 0x0f,
116};
117
118/**
119 * enum ps3_sys_manager_event - External event type, reported by system manager.
120 * @PS3_SM_EVENT_POWER_PRESSED: payload.value not used.
121 * @PS3_SM_EVENT_POWER_RELEASED: payload.value = time pressed in millisec.
122 * @PS3_SM_EVENT_RESET_PRESSED: payload.value not used.
123 * @PS3_SM_EVENT_RESET_RELEASED: payload.value = time pressed in millisec.
124 * @PS3_SM_EVENT_THERMAL_ALERT: payload.value = thermal zone id.
125 * @PS3_SM_EVENT_THERMAL_CLEARED: payload.value = thermal zone id.
126 */
127
128enum ps3_sys_manager_event {
129 /* version 1 */
130 PS3_SM_EVENT_POWER_PRESSED = 3,
131 PS3_SM_EVENT_POWER_RELEASED = 4,
132 PS3_SM_EVENT_RESET_PRESSED = 5,
133 PS3_SM_EVENT_RESET_RELEASED = 6,
134 PS3_SM_EVENT_THERMAL_ALERT = 7,
135 PS3_SM_EVENT_THERMAL_CLEARED = 8,
136 /* no info on controller events */
137};
138
139/**
140 * enum ps3_sys_manager_next_op - Operation to perform after lpar is destroyed.
141 */
142
143enum ps3_sys_manager_next_op {
144 /* version 3 */
145 PS3_SM_NEXT_OP_SYS_SHUTDOWN = 1,
146 PS3_SM_NEXT_OP_SYS_REBOOT = 2,
147 PS3_SM_NEXT_OP_LPAR_REBOOT = 0x82,
148};
149
150/**
151 * enum ps3_sys_manager_wake_source - Next-op wakeup source (bit position mask).
152 * @PS3_SM_WAKE_DEFAULT: Disk insert, power button, eject button, IR
153 * controller, and bluetooth controller.
154 * @PS3_SM_WAKE_RTC:
155 * @PS3_SM_WAKE_RTC_ERROR:
156 * @PS3_SM_WAKE_P_O_R: Power on reset.
157 *
158 * Additional wakeup sources when specifying PS3_SM_NEXT_OP_SYS_SHUTDOWN.
159 * System will always wake from the PS3_SM_WAKE_DEFAULT sources.
160 */
161
162enum ps3_sys_manager_wake_source {
163 /* version 3 */
164 PS3_SM_WAKE_DEFAULT = 0,
165 PS3_SM_WAKE_RTC = 0x00000040,
166 PS3_SM_WAKE_RTC_ERROR = 0x00000080,
167 PS3_SM_WAKE_P_O_R = 0x10000000,
168};
169
170/**
171 * enum ps3_sys_manager_cmd - Command from system manager to guest.
172 *
173 * The guest completes the actions needed, then acks or naks the command via
174 * ps3_sys_manager_send_response(). In the case of @PS3_SM_CMD_SHUTDOWN,
175 * the guest must be fully prepared for a system poweroff prior to acking the
176 * command.
177 */
178
179enum ps3_sys_manager_cmd {
180 /* version 1 */
181 PS3_SM_CMD_SHUTDOWN = 1, /* shutdown guest OS */
182};
183
184/**
185 * ps3_sys_manager_write - Helper to write a two part message to the vuart.
186 *
187 */
188
189static int ps3_sys_manager_write(struct ps3_vuart_port_device *dev,
190 const struct ps3_sys_manager_header *header, const void *payload)
191{
192 int result;
193
194 BUG_ON(header->version != 1);
195 BUG_ON(header->size != 16);
196 BUG_ON(header->payload_size != 8 && header->payload_size != 16);
197 BUG_ON(header->service_id > 8);
198
199 result = ps3_vuart_write(dev, header,
200 sizeof(struct ps3_sys_manager_header));
201
202 if (!result)
203 result = ps3_vuart_write(dev, payload, header->payload_size);
204
205 return result;
206}
207
208/**
209 * ps3_sys_manager_send_attr - Send a 'set attribute' to the system manager.
210 *
211 */
212
213static int ps3_sys_manager_send_attr(struct ps3_vuart_port_device *dev,
214 enum ps3_sys_manager_attr attr)
215{
216 static const struct ps3_sys_manager_header header = {
217 .version = 1,
218 .size = 16,
219 .payload_size = 16,
220 .service_id = PS3_SM_SERVICE_ID_SET_ATTR,
221 };
222 struct {
223 u8 version;
224 u8 reserved_1[3];
225 u32 attribute;
226 } payload;
227
228 BUILD_BUG_ON(sizeof(payload) != 8);
229
230 dev_dbg(&dev->core, "%s:%d: %xh\n", __func__, __LINE__, attr);
231
232 memset(&payload, 0, sizeof(payload));
233 payload.version = 1;
234 payload.attribute = attr;
235
236 return ps3_sys_manager_write(dev, &header, &payload);
237}
238
239/**
240 * ps3_sys_manager_send_next_op - Send a 'set next op' to the system manager.
241 *
242 * Tell the system manager what to do after this lpar is destroyed.
243 */
244
245static int ps3_sys_manager_send_next_op(struct ps3_vuart_port_device *dev,
246 enum ps3_sys_manager_next_op op,
247 enum ps3_sys_manager_wake_source wake_source)
248{
249 static const struct ps3_sys_manager_header header = {
250 .version = 1,
251 .size = 16,
252 .payload_size = 16,
253 .service_id = PS3_SM_SERVICE_ID_SET_NEXT_OP,
254 };
255 struct {
256 u8 version;
257 u8 type;
258 u8 gos_id;
259 u8 reserved_1;
260 u32 wake_source;
261 u8 reserved_2[8];
262 } payload;
263
264 BUILD_BUG_ON(sizeof(payload) != 16);
265
266 dev_dbg(&dev->core, "%s:%d: (%xh)\n", __func__, __LINE__, op);
267
268 memset(&payload, 0, sizeof(payload));
269 payload.version = 3;
270 payload.type = op;
271 payload.gos_id = 3; /* other os */
272 payload.wake_source = wake_source;
273
274 return ps3_sys_manager_write(dev, &header, &payload);
275}
276
277/**
278 * ps3_sys_manager_send_request_shutdown - Send 'request' to the system manager.
279 *
280 * The guest sends this message to request an operation or action of the system
281 * manager. The reply is a command message from the system manager. In the
282 * command handler the guest performs the requested operation. The result of
283 * the command is then communicated back to the system manager with a response
284 * message.
285 *
286 * Currently, the only supported request it the 'shutdown self' request.
287 */
288
289static int ps3_sys_manager_send_request_shutdown(struct ps3_vuart_port_device *dev)
290{
291 static const struct ps3_sys_manager_header header = {
292 .version = 1,
293 .size = 16,
294 .payload_size = 16,
295 .service_id = PS3_SM_SERVICE_ID_REQUEST,
296 };
297 struct {
298 u8 version;
299 u8 type;
300 u8 gos_id;
301 u8 reserved_1[13];
302 } static const payload = {
303 .version = 1,
304 .type = 1, /* shutdown */
305 .gos_id = 0, /* self */
306 };
307
308 BUILD_BUG_ON(sizeof(payload) != 16);
309
310 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
311
312 return ps3_sys_manager_write(dev, &header, &payload);
313}
314
315/**
316 * ps3_sys_manager_send_response - Send a 'response' to the system manager.
317 * @status: zero = success, others fail.
318 *
319 * The guest sends this message to the system manager to acnowledge success or
320 * failure of a command sent by the system manager.
321 */
322
323static int ps3_sys_manager_send_response(struct ps3_vuart_port_device *dev,
324 u64 status)
325{
326 static const struct ps3_sys_manager_header header = {
327 .version = 1,
328 .size = 16,
329 .payload_size = 16,
330 .service_id = PS3_SM_SERVICE_ID_RESPONSE,
331 };
332 struct {
333 u8 version;
334 u8 reserved_1[3];
335 u8 status;
336 u8 reserved_2[11];
337 } payload;
338
339 BUILD_BUG_ON(sizeof(payload) != 16);
340
341 dev_dbg(&dev->core, "%s:%d: (%s)\n", __func__, __LINE__,
342 (status ? "nak" : "ack"));
343
344 memset(&payload, 0, sizeof(payload));
345 payload.version = 1;
346 payload.status = status;
347
348 return ps3_sys_manager_write(dev, &header, &payload);
349}
350
351/**
352 * ps3_sys_manager_handle_event - Second stage event msg handler.
353 *
354 */
355
356static int ps3_sys_manager_handle_event(struct ps3_vuart_port_device *dev)
357{
358 int result;
359 struct {
360 u8 version;
361 u8 type;
362 u8 reserved_1[2];
363 u32 value;
364 u8 reserved_2[8];
365 } event;
366
367 BUILD_BUG_ON(sizeof(event) != 16);
368
369 result = ps3_vuart_read(dev, &event, sizeof(event));
370 BUG_ON(result);
371
372 if (event.version != 1) {
373 dev_dbg(&dev->core, "%s:%d: unsupported event version (%u)\n",
374 __func__, __LINE__, event.version);
375 return -EIO;
376 }
377
378 switch (event.type) {
379 case PS3_SM_EVENT_POWER_PRESSED:
380 dev_dbg(&dev->core, "%s:%d: POWER_PRESSED\n",
381 __func__, __LINE__);
382 break;
383 case PS3_SM_EVENT_POWER_RELEASED:
384 dev_dbg(&dev->core, "%s:%d: POWER_RELEASED (%u ms)\n",
385 __func__, __LINE__, event.value);
386 kill_cad_pid(SIGINT, 1);
387 break;
388 case PS3_SM_EVENT_THERMAL_ALERT:
389 dev_dbg(&dev->core, "%s:%d: THERMAL_ALERT (zone %u)\n",
390 __func__, __LINE__, event.value);
391 printk(KERN_INFO "PS3 Thermal Alert Zone %u\n", event.value);
392 break;
393 case PS3_SM_EVENT_THERMAL_CLEARED:
394 dev_dbg(&dev->core, "%s:%d: THERMAL_CLEARED (zone %u)\n",
395 __func__, __LINE__, event.value);
396 break;
397 default:
398 dev_dbg(&dev->core, "%s:%d: unknown event (%u)\n",
399 __func__, __LINE__, event.type);
400 return -EIO;
401 }
402
403 return 0;
404}
405/**
406 * ps3_sys_manager_handle_cmd - Second stage command msg handler.
407 *
408 * The system manager sends this in reply to a 'request' message from the guest.
409 */
410
411static int ps3_sys_manager_handle_cmd(struct ps3_vuart_port_device *dev)
412{
413 int result;
414 struct {
415 u8 version;
416 u8 type;
417 u8 reserved_1[14];
418 } cmd;
419
420 BUILD_BUG_ON(sizeof(cmd) != 16);
421
422 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
423
424 result = ps3_vuart_read(dev, &cmd, sizeof(cmd));
425
426 if(result)
427 return result;
428
429 if (cmd.version != 1) {
430 dev_dbg(&dev->core, "%s:%d: unsupported cmd version (%u)\n",
431 __func__, __LINE__, cmd.version);
432 return -EIO;
433 }
434
435 if (cmd.type != PS3_SM_CMD_SHUTDOWN) {
436 dev_dbg(&dev->core, "%s:%d: unknown cmd (%u)\n",
437 __func__, __LINE__, cmd.type);
438 return -EIO;
439 }
440
441 ps3_sys_manager_send_response(dev, 0);
442 return 0;
443}
444
445/**
446 * ps3_sys_manager_handle_msg - First stage msg handler.
447 *
448 */
449
450static int ps3_sys_manager_handle_msg(struct ps3_vuart_port_device *dev)
451{
452 int result;
453 struct ps3_sys_manager_header header;
454
455 result = ps3_vuart_read(dev, &header,
456 sizeof(struct ps3_sys_manager_header));
457
458 if(result)
459 return result;
460
461 if (header.version != 1) {
462 dev_dbg(&dev->core, "%s:%d: unsupported header version (%u)\n",
463 __func__, __LINE__, header.version);
464 goto fail_header;
465 }
466
467 BUILD_BUG_ON(sizeof(header) != 16);
468 BUG_ON(header.size != 16);
469 BUG_ON(header.payload_size != 16);
470
471 switch (header.service_id) {
472 case PS3_SM_SERVICE_ID_EXTERN_EVENT:
473 dev_dbg(&dev->core, "%s:%d: EVENT\n", __func__, __LINE__);
474 return ps3_sys_manager_handle_event(dev);
475 case PS3_SM_SERVICE_ID_COMMAND:
476 dev_dbg(&dev->core, "%s:%d: COMMAND\n", __func__, __LINE__);
477 return ps3_sys_manager_handle_cmd(dev);
478 default:
479 dev_dbg(&dev->core, "%s:%d: unknown service_id (%u)\n",
480 __func__, __LINE__, header.service_id);
481 break;
482 }
483 goto fail_id;
484
485fail_header:
486 ps3_vuart_clear_rx_bytes(dev, 0);
487 return -EIO;
488fail_id:
489 ps3_vuart_clear_rx_bytes(dev, header.payload_size);
490 return -EIO;
491}
492
493/**
494 * ps3_sys_manager_work - Asyncronous read handler.
495 *
496 * Signaled when a complete message arrives at the vuart port.
497 */
498
499static void ps3_sys_manager_work(struct work_struct *work)
500{
501 struct ps3_vuart_port_device *dev = ps3_vuart_work_to_port_device(work);
502
503 ps3_sys_manager_handle_msg(dev);
504 ps3_vuart_read_async(dev, ps3_sys_manager_work, PS3_SM_RX_MSG_LEN);
505}
506
507struct {
508 struct ps3_vuart_port_device *dev;
509} static drv_priv;
510
511/**
512 * ps3_sys_manager_restart - The final platform machine_restart routine.
513 *
514 * This routine never returns. The routine disables asyncronous vuart reads
515 * then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge
516 * the shutdown command sent from the system manager. Soon after the
517 * acknowledgement is sent the lpar is destroyed by the HV. This routine
518 * should only be called from ps3_restart().
519 */
520
521void ps3_sys_manager_restart(void)
522{
523 struct ps3_vuart_port_device *dev = drv_priv.dev;
524
525 BUG_ON(!drv_priv.dev);
526
527 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
528
529 ps3_vuart_cancel_async(dev);
530
531 ps3_sys_manager_send_attr(dev, 0);
532 ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_LPAR_REBOOT,
533 PS3_SM_WAKE_DEFAULT);
534 ps3_sys_manager_send_request_shutdown(dev);
535
536 printk(KERN_EMERG "System Halted, OK to turn off power\n");
537
538 while(1)
539 ps3_sys_manager_handle_msg(dev);
540}
541
542/**
543 * ps3_sys_manager_power_off - The final platform machine_power_off routine.
544 *
545 * This routine never returns. The routine disables asyncronous vuart reads
546 * then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge
547 * the shutdown command sent from the system manager. Soon after the
548 * acknowledgement is sent the lpar is destroyed by the HV. This routine
549 * should only be called from ps3_power_off().
550 */
551
552void ps3_sys_manager_power_off(void)
553{
554 struct ps3_vuart_port_device *dev = drv_priv.dev;
555
556 BUG_ON(!drv_priv.dev);
557
558 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
559
560 ps3_vuart_cancel_async(dev);
561
562 ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_SHUTDOWN,
563 PS3_SM_WAKE_DEFAULT);
564 ps3_sys_manager_send_request_shutdown(dev);
565
566 printk(KERN_EMERG "System Halted, OK to turn off power\n");
567
568 while(1)
569 ps3_sys_manager_handle_msg(dev);
570}
571
572static int ps3_sys_manager_probe(struct ps3_vuart_port_device *dev)
573{
574 int result;
575
576 dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
577
578 BUG_ON(drv_priv.dev);
579 drv_priv.dev = dev;
580
581 result = ps3_sys_manager_send_attr(dev, PS3_SM_ATTR_ALL);
582 BUG_ON(result);
583
584 result = ps3_vuart_read_async(dev, ps3_sys_manager_work,
585 PS3_SM_RX_MSG_LEN);
586 BUG_ON(result);
587
588 return result;
589}
590
591static struct ps3_vuart_port_driver ps3_sys_manager = {
592 .match_id = PS3_MATCH_ID_SYSTEM_MANAGER,
593 .core = {
594 .name = "ps3_sys_manager",
595 },
596 .probe = ps3_sys_manager_probe,
597};
598
599static int __init ps3_sys_manager_init(void)
600{
601 return ps3_vuart_port_driver_register(&ps3_sys_manager);
602}
603
604module_init(ps3_sys_manager_init);
diff --git a/include/asm-powerpc/ps3.h b/include/asm-powerpc/ps3.h
index a39d92f9022b..821581a8b643 100644
--- a/include/asm-powerpc/ps3.h
+++ b/include/asm-powerpc/ps3.h
@@ -370,6 +370,11 @@ struct ps3_vuart_port_device {
370 370
371int ps3_vuart_port_device_register(struct ps3_vuart_port_device *dev); 371int ps3_vuart_port_device_register(struct ps3_vuart_port_device *dev);
372 372
373/* system manager */
374
375void ps3_sys_manager_restart(void);
376void ps3_sys_manager_power_off(void);
377
373struct ps3_prealloc { 378struct ps3_prealloc {
374 const char *name; 379 const char *name;
375 void *address; 380 void *address;