[POWERPC] PS3: System manager support (fde5efd0) · Commits · e / devices / android_kernel_xiaomi_markw

arch/powerpc/platforms/ps3/Kconfig

+10 −0

Original line number	Diff line number	Diff line
		@@ -62,4 +62,14 @@ config PS3_PS3AV
		This support is required for graphics and sound. In
		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

arch/powerpc/platforms/ps3/setup.c

+23 −4

Original line number	Diff line number	Diff line
		@@ -42,6 +42,10 @@
		#define DBG(fmt...) do{if(0)printk(fmt);}while(0)
		#endif

		#if !defined(CONFIG_SMP)
		static void smp_send_stop(void) {}
		#endif

		int ps3_get_firmware_version(union ps3_firmware_version *v)
		{
		int result = lv1_get_version_info(&v->raw);
		@@ -66,22 +70,35 @@ static void ps3_power_save(void)
		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)
		{
		DBG("%s:%d %s\n", __func__, __LINE__, str);

		#ifdef CONFIG_SMP
		smp_send_stop();
		#endif
		printk("\n");
		printk(" System does not reboot automatically.\n");
		printk(" Please press POWER button.\n");
		printk("\n");

		for (;;) ;
		while(1);
		}


		static void prealloc(struct ps3_prealloc *p)
		{
		if (!p->size)
		@@ -219,6 +236,8 @@ define_machine(ps3) {
		.get_rtc_time = ps3_get_rtc_time,
		.calibrate_decr = ps3_calibrate_decr,
		.progress = ps3_progress,
		.restart = ps3_restart,
		.power_off = ps3_power_off,
		#if defined(CONFIG_KEXEC)
		.kexec_cpu_down = ps3_kexec_cpu_down,
		.machine_kexec = ps3_machine_kexec,

drivers/ps3/Makefile

+1 −0

Original line number	Diff line number	Diff line
		obj-$(CONFIG_PS3_VUART) += vuart.o
		obj-$(CONFIG_PS3_PS3AV) += ps3av.o ps3av_cmd.o
		obj-$(CONFIG_PS3_SYS_MANAGER) += sys-manager.o

drivers/ps3/sys-manager.c

0 → 100644

+604 −0

Original line number	Diff line number	Diff line
		/*
		* 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);

include/asm-powerpc/ps3.h

+5 −0

Original line number	Diff line number	Diff line
		@@ -370,6 +370,11 @@ struct ps3_vuart_port_device {

		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 {
		const char *name;
		void *address;