Commit fde5efd0 authored by Geoff Levand's avatar Geoff Levand Committed by Paul Mackerras

[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: default avatarGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent ea1547d3
...@@ -62,4 +62,14 @@ config PS3_PS3AV ...@@ -62,4 +62,14 @@ config PS3_PS3AV
This support is required for graphics and sound. In This support is required for graphics and sound. In
general, all users will say Y or M. general, all users will say Y or M.
config PS3_SYS_MANAGER
bool "PS3 System Manager driver"
select PS3_VUART
default y
help
Include support for the PS3 System Manager.
This support is required for system control. In
general, all users will say Y.
endmenu endmenu
...@@ -42,6 +42,10 @@ ...@@ -42,6 +42,10 @@
#define DBG(fmt...) do{if(0)printk(fmt);}while(0) #define DBG(fmt...) do{if(0)printk(fmt);}while(0)
#endif #endif
#if !defined(CONFIG_SMP)
static void smp_send_stop(void) {}
#endif
int ps3_get_firmware_version(union ps3_firmware_version *v) int ps3_get_firmware_version(union ps3_firmware_version *v)
{ {
int result = lv1_get_version_info(&v->raw); int result = lv1_get_version_info(&v->raw);
...@@ -66,22 +70,35 @@ static void ps3_power_save(void) ...@@ -66,22 +70,35 @@ static void ps3_power_save(void)
lv1_pause(0); lv1_pause(0);
} }
static void ps3_restart(char *cmd)
{
DBG("%s:%d cmd '%s'\n", __func__, __LINE__, cmd);
smp_send_stop();
ps3_sys_manager_restart(); /* never returns */
}
static void ps3_power_off(void)
{
DBG("%s:%d\n", __func__, __LINE__);
smp_send_stop();
ps3_sys_manager_power_off(); /* never returns */
}
static void ps3_panic(char *str) static void ps3_panic(char *str)
{ {
DBG("%s:%d %s\n", __func__, __LINE__, str); DBG("%s:%d %s\n", __func__, __LINE__, str);
#ifdef CONFIG_SMP
smp_send_stop(); smp_send_stop();
#endif
printk("\n"); printk("\n");
printk(" System does not reboot automatically.\n"); printk(" System does not reboot automatically.\n");
printk(" Please press POWER button.\n"); printk(" Please press POWER button.\n");
printk("\n"); printk("\n");
for (;;) ; while(1);
} }
static void prealloc(struct ps3_prealloc *p) static void prealloc(struct ps3_prealloc *p)
{ {
if (!p->size) if (!p->size)
...@@ -219,6 +236,8 @@ define_machine(ps3) { ...@@ -219,6 +236,8 @@ define_machine(ps3) {
.get_rtc_time = ps3_get_rtc_time, .get_rtc_time = ps3_get_rtc_time,
.calibrate_decr = ps3_calibrate_decr, .calibrate_decr = ps3_calibrate_decr,
.progress = ps3_progress, .progress = ps3_progress,
.restart = ps3_restart,
.power_off = ps3_power_off,
#if defined(CONFIG_KEXEC) #if defined(CONFIG_KEXEC)
.kexec_cpu_down = ps3_kexec_cpu_down, .kexec_cpu_down = ps3_kexec_cpu_down,
.machine_kexec = ps3_machine_kexec, .machine_kexec = ps3_machine_kexec,
......
obj-$(CONFIG_PS3_VUART) += vuart.o obj-$(CONFIG_PS3_VUART) += vuart.o
obj-$(CONFIG_PS3_PS3AV) += ps3av.o ps3av_cmd.o obj-$(CONFIG_PS3_PS3AV) += ps3av.o ps3av_cmd.o
obj-$(CONFIG_PS3_SYS_MANAGER) += sys-manager.o
/*
* PS3 System Manager.
*
* Copyright (C) 2007 Sony Computer Entertainment Inc.
* Copyright 2007 Sony Corp.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/workqueue.h>
#include <linux/reboot.h>
#include <asm/ps3.h>
#include "vuart.h"
MODULE_AUTHOR("Sony Corporation");
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("PS3 System Manager");
/**
* ps3_sys_manager - PS3 system manager driver.
*
* The system manager provides an asyncronous system event notification
* mechanism for reporting events like thermal alert and button presses to
* guests. It also provides support to control system shutdown and startup.
*
* The actual system manager is implemented as an application running in the
* system policy module in lpar_1. Guests communicate with the system manager
* through port 2 of the vuart using a simple packet message protocol.
* Messages are comprised of a fixed field header followed by a message
* specific payload.
*/
/**
* struct ps3_sys_manager_header - System manager message header.
* @version: Header version, currently 1.
* @size: Header size in bytes, curently 16.
* @payload_size: Message payload size in bytes.
* @service_id: Message type, one of enum ps3_sys_manager_service_id.
*/
struct ps3_sys_manager_header {
/* version 1 */
u8 version;
u8 size;
u16 reserved_1;
u32 payload_size;
u16 service_id;
u16 reserved_2[3];
};
/**
* @PS3_SM_RX_MSG_LEN - System manager received message length.
*
* Currently all messages received from the system manager are the same length
* (16 bytes header + 16 bytes payload = 32 bytes). This knowlege is used to
* simplify the logic.
*/
enum {
PS3_SM_RX_MSG_LEN = 32,
};
/**
* enum ps3_sys_manager_service_id - Message header service_id.
* @PS3_SM_SERVICE_ID_REQUEST: guest --> sys_manager.
* @PS3_SM_SERVICE_ID_COMMAND: guest <-- sys_manager.
* @PS3_SM_SERVICE_ID_RESPONSE: guest --> sys_manager.
* @PS3_SM_SERVICE_ID_SET_ATTR: guest --> sys_manager.
* @PS3_SM_SERVICE_ID_EXTERN_EVENT: guest <-- sys_manager.
* @PS3_SM_SERVICE_ID_SET_NEXT_OP: guest --> sys_manager.
*/
enum ps3_sys_manager_service_id {
/* version 1 */
PS3_SM_SERVICE_ID_REQUEST = 1,
PS3_SM_SERVICE_ID_RESPONSE = 2,
PS3_SM_SERVICE_ID_COMMAND = 3,
PS3_SM_SERVICE_ID_EXTERN_EVENT = 4,
PS3_SM_SERVICE_ID_SET_NEXT_OP = 5,
PS3_SM_SERVICE_ID_SET_ATTR = 8,
};
/**
* enum ps3_sys_manager_attr - Notification attribute (bit position mask).
* @PS3_SM_ATTR_POWER: Power button.
* @PS3_SM_ATTR_RESET: Reset button, not available on retail console.
* @PS3_SM_ATTR_THERMAL: Sytem thermal alert.
* @PS3_SM_ATTR_CONTROLLER: Remote controller event.
* @PS3_SM_ATTR_ALL: Logical OR of all.
*
* The guest tells the system manager which events it is interested in receiving
* notice of by sending the system manager a logical OR of notification
* attributes via the ps3_sys_manager_send_attr() routine.
*/
enum ps3_sys_manager_attr {
/* version 1 */
PS3_SM_ATTR_POWER = 1,
PS3_SM_ATTR_RESET = 2,
PS3_SM_ATTR_THERMAL = 4,
PS3_SM_ATTR_CONTROLLER = 8, /* bogus? */
PS3_SM_ATTR_ALL = 0x0f,
};
/**
* enum ps3_sys_manager_event - External event type, reported by system manager.
* @PS3_SM_EVENT_POWER_PRESSED: payload.value not used.
* @PS3_SM_EVENT_POWER_RELEASED: payload.value = time pressed in millisec.
* @PS3_SM_EVENT_RESET_PRESSED: payload.value not used.
* @PS3_SM_EVENT_RESET_RELEASED: payload.value = time pressed in millisec.
* @PS3_SM_EVENT_THERMAL_ALERT: payload.value = thermal zone id.
* @PS3_SM_EVENT_THERMAL_CLEARED: payload.value = thermal zone id.
*/
enum ps3_sys_manager_event {
/* version 1 */
PS3_SM_EVENT_POWER_PRESSED = 3,
PS3_SM_EVENT_POWER_RELEASED = 4,
PS3_SM_EVENT_RESET_PRESSED = 5,
PS3_SM_EVENT_RESET_RELEASED = 6,
PS3_SM_EVENT_THERMAL_ALERT = 7,
PS3_SM_EVENT_THERMAL_CLEARED = 8,
/* no info on controller events */
};
/**
* enum ps3_sys_manager_next_op - Operation to perform after lpar is destroyed.
*/
enum ps3_sys_manager_next_op {
/* version 3 */
PS3_SM_NEXT_OP_SYS_SHUTDOWN = 1,
PS3_SM_NEXT_OP_SYS_REBOOT = 2,
PS3_SM_NEXT_OP_LPAR_REBOOT = 0x82,
};
/**
* enum ps3_sys_manager_wake_source - Next-op wakeup source (bit position mask).
* @PS3_SM_WAKE_DEFAULT: Disk insert, power button, eject button, IR
* controller, and bluetooth controller.
* @PS3_SM_WAKE_RTC:
* @PS3_SM_WAKE_RTC_ERROR:
* @PS3_SM_WAKE_P_O_R: Power on reset.
*
* Additional wakeup sources when specifying PS3_SM_NEXT_OP_SYS_SHUTDOWN.
* System will always wake from the PS3_SM_WAKE_DEFAULT sources.
*/
enum ps3_sys_manager_wake_source {
/* version 3 */
PS3_SM_WAKE_DEFAULT = 0,
PS3_SM_WAKE_RTC = 0x00000040,
PS3_SM_WAKE_RTC_ERROR = 0x00000080,
PS3_SM_WAKE_P_O_R = 0x10000000,
};
/**
* enum ps3_sys_manager_cmd - Command from system manager to guest.
*
* The guest completes the actions needed, then acks or naks the command via
* ps3_sys_manager_send_response(). In the case of @PS3_SM_CMD_SHUTDOWN,
* the guest must be fully prepared for a system poweroff prior to acking the
* command.
*/
enum ps3_sys_manager_cmd {
/* version 1 */
PS3_SM_CMD_SHUTDOWN = 1, /* shutdown guest OS */
};
/**
* ps3_sys_manager_write - Helper to write a two part message to the vuart.
*
*/
static int ps3_sys_manager_write(struct ps3_vuart_port_device *dev,
const struct ps3_sys_manager_header *header, const void *payload)
{
int result;
BUG_ON(header->version != 1);
BUG_ON(header->size != 16);
BUG_ON(header->payload_size != 8 && header->payload_size != 16);
BUG_ON(header->service_id > 8);
result = ps3_vuart_write(dev, header,
sizeof(struct ps3_sys_manager_header));
if (!result)
result = ps3_vuart_write(dev, payload, header->payload_size);
return result;
}
/**
* ps3_sys_manager_send_attr - Send a 'set attribute' to the system manager.
*
*/
static int ps3_sys_manager_send_attr(struct ps3_vuart_port_device *dev,
enum ps3_sys_manager_attr attr)
{
static const struct ps3_sys_manager_header header = {
.version = 1,
.size = 16,
.payload_size = 16,
.service_id = PS3_SM_SERVICE_ID_SET_ATTR,
};
struct {
u8 version;
u8 reserved_1[3];
u32 attribute;
} payload;
BUILD_BUG_ON(sizeof(payload) != 8);
dev_dbg(&dev->core, "%s:%d: %xh\n", __func__, __LINE__, attr);
memset(&payload, 0, sizeof(payload));
payload.version = 1;
payload.attribute = attr;
return ps3_sys_manager_write(dev, &header, &payload);
}
/**
* ps3_sys_manager_send_next_op - Send a 'set next op' to the system manager.
*
* Tell the system manager what to do after this lpar is destroyed.
*/
static int ps3_sys_manager_send_next_op(struct ps3_vuart_port_device *dev,
enum ps3_sys_manager_next_op op,
enum ps3_sys_manager_wake_source wake_source)
{
static const struct ps3_sys_manager_header header = {
.version = 1,
.size = 16,
.payload_size = 16,
.service_id = PS3_SM_SERVICE_ID_SET_NEXT_OP,
};
struct {
u8 version;
u8 type;
u8 gos_id;
u8 reserved_1;
u32 wake_source;
u8 reserved_2[8];
} payload;
BUILD_BUG_ON(sizeof(payload) != 16);
dev_dbg(&dev->core, "%s:%d: (%xh)\n", __func__, __LINE__, op);
memset(&payload, 0, sizeof(payload));
payload.version = 3;
payload.type = op;
payload.gos_id = 3; /* other os */
payload.wake_source = wake_source;
return ps3_sys_manager_write(dev, &header, &payload);
}
/**
* ps3_sys_manager_send_request_shutdown - Send 'request' to the system manager.
*
* The guest sends this message to request an operation or action of the system
* manager. The reply is a command message from the system manager. In the
* command handler the guest performs the requested operation. The result of
* the command is then communicated back to the system manager with a response
* message.
*
* Currently, the only supported request it the 'shutdown self' request.
*/
static int ps3_sys_manager_send_request_shutdown(struct ps3_vuart_port_device *dev)
{
static const struct ps3_sys_manager_header header = {
.version = 1,
.size = 16,
.payload_size = 16,
.service_id = PS3_SM_SERVICE_ID_REQUEST,
};
struct {
u8 version;
u8 type;
u8 gos_id;
u8 reserved_1[13];
} static const payload = {
.version = 1,
.type = 1, /* shutdown */
.gos_id = 0, /* self */
};
BUILD_BUG_ON(sizeof(payload) != 16);
dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
return ps3_sys_manager_write(dev, &header, &payload);
}
/**
* ps3_sys_manager_send_response - Send a 'response' to the system manager.
* @status: zero = success, others fail.
*
* The guest sends this message to the system manager to acnowledge success or
* failure of a command sent by the system manager.
*/
static int ps3_sys_manager_send_response(struct ps3_vuart_port_device *dev,
u64 status)
{
static const struct ps3_sys_manager_header header = {
.version = 1,
.size = 16,
.payload_size = 16,
.service_id = PS3_SM_SERVICE_ID_RESPONSE,
};
struct {
u8 version;
u8 reserved_1[3];
u8 status;
u8 reserved_2[11];
} payload;
BUILD_BUG_ON(sizeof(payload) != 16);
dev_dbg(&dev->core, "%s:%d: (%s)\n", __func__, __LINE__,
(status ? "nak" : "ack"));
memset(&payload, 0, sizeof(payload));
payload.version = 1;
payload.status = status;
return ps3_sys_manager_write(dev, &header, &payload);
}
/**
* ps3_sys_manager_handle_event - Second stage event msg handler.
*
*/
static int ps3_sys_manager_handle_event(struct ps3_vuart_port_device *dev)
{
int result;
struct {
u8 version;
u8 type;
u8 reserved_1[2];
u32 value;
u8 reserved_2[8];
} event;
BUILD_BUG_ON(sizeof(event) != 16);
result = ps3_vuart_read(dev, &event, sizeof(event));
BUG_ON(result);
if (event.version != 1) {
dev_dbg(&dev->core, "%s:%d: unsupported event version (%u)\n",
__func__, __LINE__, event.version);
return -EIO;
}
switch (event.type) {
case PS3_SM_EVENT_POWER_PRESSED:
dev_dbg(&dev->core, "%s:%d: POWER_PRESSED\n",
__func__, __LINE__);
break;
case PS3_SM_EVENT_POWER_RELEASED:
dev_dbg(&dev->core, "%s:%d: POWER_RELEASED (%u ms)\n",
__func__, __LINE__, event.value);
kill_cad_pid(SIGINT, 1);
break;
case PS3_SM_EVENT_THERMAL_ALERT:
dev_dbg(&dev->core, "%s:%d: THERMAL_ALERT (zone %u)\n",
__func__, __LINE__, event.value);
printk(KERN_INFO "PS3 Thermal Alert Zone %u\n", event.value);
break;
case PS3_SM_EVENT_THERMAL_CLEARED:
dev_dbg(&dev->core, "%s:%d: THERMAL_CLEARED (zone %u)\n",
__func__, __LINE__, event.value);
break;
default:
dev_dbg(&dev->core, "%s:%d: unknown event (%u)\n",
__func__, __LINE__, event.type);
return -EIO;
}
return 0;
}
/**
* ps3_sys_manager_handle_cmd - Second stage command msg handler.
*
* The system manager sends this in reply to a 'request' message from the guest.
*/
static int ps3_sys_manager_handle_cmd(struct ps3_vuart_port_device *dev)
{
int result;
struct {
u8 version;
u8 type;
u8 reserved_1[14];
} cmd;
BUILD_BUG_ON(sizeof(cmd) != 16);
dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
result = ps3_vuart_read(dev, &cmd, sizeof(cmd));
if(result)
return result;
if (cmd.version != 1) {
dev_dbg(&dev->core, "%s:%d: unsupported cmd version (%u)\n",
__func__, __LINE__, cmd.version);
return -EIO;
}
if (cmd.type != PS3_SM_CMD_SHUTDOWN) {
dev_dbg(&dev->core, "%s:%d: unknown cmd (%u)\n",
__func__, __LINE__, cmd.type);
return -EIO;
}
ps3_sys_manager_send_response(dev, 0);
return 0;
}
/**
* ps3_sys_manager_handle_msg - First stage msg handler.
*
*/
static int ps3_sys_manager_handle_msg(struct ps3_vuart_port_device *dev)
{
int result;
struct ps3_sys_manager_header header;
result = ps3_vuart_read(dev, &header,
sizeof(struct ps3_sys_manager_header));
if(result)
return result;
if (header.version != 1) {
dev_dbg(&dev->core, "%s:%d: unsupported header version (%u)\n",
__func__, __LINE__, header.version);
goto fail_header;
}
BUILD_BUG_ON(sizeof(header) != 16);
BUG_ON(header.size != 16);
BUG_ON(header.payload_size != 16);
switch (header.service_id) {
case PS3_SM_SERVICE_ID_EXTERN_EVENT:
dev_dbg(&dev->core, "%s:%d: EVENT\n", __func__, __LINE__);
return ps3_sys_manager_handle_event(dev);
case PS3_SM_SERVICE_ID_COMMAND:
dev_dbg(&dev->core, "%s:%d: COMMAND\n", __func__, __LINE__);
return ps3_sys_manager_handle_cmd(dev);
default:
dev_dbg(&dev->core, "%s:%d: unknown service_id (%u)\n",
__func__, __LINE__, header.service_id);
break;
}
goto fail_id;
fail_header:
ps3_vuart_clear_rx_bytes(dev, 0);
return -EIO;
fail_id:
ps3_vuart_clear_rx_bytes(dev, header.payload_size);
return -EIO;
}
/**
* ps3_sys_manager_work - Asyncronous read handler.
*
* Signaled when a complete message arrives at the vuart port.
*/
static void ps3_sys_manager_work(struct work_struct *work)
{
struct ps3_vuart_port_device *dev = ps3_vuart_work_to_port_device(work);
ps3_sys_manager_handle_msg(dev);
ps3_vuart_read_async(dev, ps3_sys_manager_work, PS3_SM_RX_MSG_LEN);
}
struct {
struct ps3_vuart_port_device *dev;
} static drv_priv;
/**
* ps3_sys_manager_restart - The final platform machine_restart routine.
*
* This routine never returns. The routine disables asyncronous vuart reads
* then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge
* the shutdown command sent from the system manager. Soon after the
* acknowledgement is sent the lpar is destroyed by the HV. This routine
* should only be called from ps3_restart().
*/
void ps3_sys_manager_restart(void)
{
struct ps3_vuart_port_device *dev = drv_priv.dev;
BUG_ON(!drv_priv.dev);
dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
ps3_vuart_cancel_async(dev);
ps3_sys_manager_send_attr(dev, 0);
ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_LPAR_REBOOT,
PS3_SM_WAKE_DEFAULT);
ps3_sys_manager_send_request_shutdown(dev);
printk(KERN_EMERG "System Halted, OK to turn off power\n");
while(1)
ps3_sys_manager_handle_msg(dev);
}
/**
* ps3_sys_manager_power_off - The final platform machine_power_off routine.
*
* This routine never returns. The routine disables asyncronous vuart reads
* then spins calling ps3_sys_manager_handle_msg() to receive and acknowledge
* the shutdown command sent from the system manager. Soon after the
* acknowledgement is sent the lpar is destroyed by the HV. This routine
* should only be called from ps3_power_off().
*/
void ps3_sys_manager_power_off(void)
{
struct ps3_vuart_port_device *dev = drv_priv.dev;
BUG_ON(!drv_priv.dev);
dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
ps3_vuart_cancel_async(dev);
ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_SHUTDOWN,
PS3_SM_WAKE_DEFAULT);
ps3_sys_manager_send_request_shutdown(dev);
printk(KERN_EMERG "System Halted, OK to turn off power\n");
while(1)
ps3_sys_manager_handle_msg(dev);
}
static int ps3_sys_manager_probe(struct ps3_vuart_port_device *dev)
{
int result;
dev_dbg(&dev->core, "%s:%d\n", __func__, __LINE__);
BUG_ON(drv_priv.dev);
drv_priv.dev = dev;
result = ps3_sys_manager_send_attr(dev, PS3_SM_ATTR_ALL);
BUG_ON(result);
result = ps3_vuart_read_async(dev, ps3_sys_manager_work,
PS3_SM_RX_MSG_LEN);
BUG_ON(result);
return result;
}
static struct ps3_vuart_port_driver ps3_sys_manager = {
.match_id = PS3_MATCH_ID_SYSTEM_MANAGER,
.core = {
.name = "ps3_sys_manager",
},
.probe = ps3_sys_manager_probe,
};
static int __init ps3_sys_manager_init(void)
{
return ps3_vuart_port_driver_register(&ps3_sys_manager);
}
module_init(ps3_sys_manager_init);
...@@ -370,6 +370,11 @@ struct ps3_vuart_port_device { ...@@ -370,6 +370,11 @@ struct ps3_vuart_port_device {
int ps3_vuart_port_device_register(struct ps3_vuart_port_device *dev); int ps3_vuart_port_device_register(struct ps3_vuart_port_device *dev);
/* system manager */
void ps3_sys_manager_restart(void);
void ps3_sys_manager_power_off(void);
struct ps3_prealloc { struct ps3_prealloc {
const char *name; const char *name;
void *address; void *address;
......
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