aiot/efHotAgingTrendMining/databaseOperation/analysisDataOperation.h

/*
 * omap-pm.h - OMAP power management interface
 *
 * Copyright (C) 2008-2010 Texas Instruments, Inc.
 * Copyright (C) 2008-2010 Nokia Corporation
 * Paul Walmsley
 *
 * Interface developed by (in alphabetical order): Karthik Dasu, Jouni
 * Högander, Tony Lindgren, Rajendra Nayak, Sakari Poussa,
 * Veeramanikandan Raju, Anand Sawant, Igor Stoppa, Paul Walmsley,
 * Richard Woodruff
 */

#ifndef ASM_ARM_ARCH_OMAP_OMAP_PM_H
#define ASM_ARM_ARCH_OMAP_OMAP_PM_H

#include <linux/device.h>
#include <linux/cpufreq.h>
#include <linux/clk.h>
#include <linux/opp.h>

/*
 * agent_id values for use with omap_pm_set_min_bus_tput():
 *
 * OCP_INITIATOR_AGENT is only valid for devices that can act as
 * initiators -- it represents the device's L3 interconnect
 * connection.  OCP_TARGET_AGENT represents the device's L4
 * interconnect connection.
 */
#define OCP_TARGET_AGENT		1
#define OCP_INITIATOR_AGENT		2

/**
 * omap_pm_if_early_init - OMAP PM init code called before clock fw init
 * @mpu_opp_table: array ptr to struct omap_opp for MPU
 * @dsp_opp_table: array ptr to struct omap_opp for DSP
 * @l3_opp_table : array ptr to struct omap_opp for CORE
 *
 * Initialize anything that must be configured before the clock
 * framework starts.  The "_if_" is to avoid name collisions with the
 * PM idle-loop code.
 */
int __init omap_pm_if_early_init(void);

/**
 * omap_pm_if_init - OMAP PM init code called after clock fw init
 *
 * The main initialization code.  OPP tables are passed in here.  The
 * "_if_" is to avoid name collisions with the PM idle-loop code.
 */
int __init omap_pm_if_init(void);

/**
 * omap_pm_if_exit - OMAP PM exit code
 *
 * Exit code; currently unused.  The "_if_" is to avoid name
 * collisions with the PM idle-loop code.
 */
void omap_pm_if_exit(void);

/*
 * Device-driver-originated constraints (via board-*.c files, platform_data)
 */


/**
 * omap_pm_set_max_mpu_wakeup_lat - set the maximum MPU wakeup latency
 * @dev: struct device * requesting the constraint
 * @t: maximum MPU wakeup latency in microseconds
 *
 * Request that the maximum interrupt latency for the MPU to be no
 * greater than @t microseconds. "Interrupt latency" in this case is
 * defined as the elapsed time from the occurrence of a hardware or
 * timer interrupt to the time when the device driver's interrupt
 * service routine has been entered by the MPU.
 *
 * It is intended that underlying PM code will use this information to
 * determine what power state to put the MPU powerdomain into, and
 * possibly the CORE powerdomain as well, since interrupt handling
 * code currently runs from SDRAM.  Advanced PM or board*.c code may
 * also configure interrupt controller priorities, OCP bus priorities,
 * CPU speed(s), etc.
 *
 * This function will not affect device wakeup latency, e.g., time
 * elapsed from when a device driver enables a hardware device with
 * clk_enable(), to when the device is ready for register access or
 * other use.  To control this device wakeup latency, use
 * omap_pm_set_max_dev_wakeup_lat()
 *
 * Multiple calls to omap_pm_set_max_mpu_wakeup_lat() will replace the
 * previous t value.  To remove the latency target for the MPU, call
 * with t = -1.
 *
 * XXX This constraint will be deprecated soon in favor of the more
 * general omap_pm_set_max_dev_wakeup_lat()
 *
 * Returns -EINVAL for an invalid argument, -ERANGE if the constraint
 * is not satisfiable, or 0 upon success.
 */
int omap_pm_set_max_mpu_wakeup_lat(struct device *dev, long t);


/**
 * omap_pm_set_min_bus_tput - set minimum bus throughput needed by device
 * @dev: struct device * requesting the constraint
 * @tbus_id: interconnect to operate on (OCP_{INITIATOR,TARGET}_AGENT)
 * @r: minimum throughput (in KiB/s)
 *
 * Request that the minimum data throughput on the OCP interconnect
 * attached to device @dev interconnect agent @tbus_id be no less
 * than @r KiB/s.
 *
 * It is expected that the OMAP PM or bus code will use this
 * information to set the interconnect clock to run at the lowest
 * possible speed that satisfies all current system users.  The PM or
 * bus code will adjust the estimate based on its model of the bus, so
 * device driver authors should attempt to specify an accurate
 * quantity for their device use case, and let the PM or bus code
 * overestimate the numbers as necessary to handle request/response
 * latency, other competing users on the system, etc.  On OMAP2/3, if
 * a driver requests a minimum L4 interconnect speed constraint, the
 * code will also need to add an minimum L3 interconnect speed
 * constraint,
 *
 * Multiple calls to omap_pm_set_min_bus_tput() will replace the
 * previous rate value for this device.  To remove the interconnect
 * throughput restriction for this device, call with r = 0.
 *
 * Returns -EINVAL for an invalid argument, -ERANGE if the constraint
 * is not satisfiable, or 0 upon success.
 */
int omap_pm_set_min_bus_tput(struct device *dev, u8 agent_id, unsigned long r);


/**
 * omap_pm_set_max_dev_wakeup_lat - set the maximum device enable latency
 * @req_dev: struct device * requesting the constraint, or NULL if none
 * @dev: struct device * to set the constraint one
 * @t: maximum device wakeup latency in microseconds
 *
 * Request that the maximum amount of time necessary for a device @dev
 * to become accessible after its clocks are enabled should be no
 * greater than @t microseconds.  Specifically, this represents the
 * time from when a device driver enables device clocks with
 * clk_enable(), to when the register reads and writes on the device
 * will succeed.  This function should be called before clk_disable()
 * is called, since the power state transition decision may be made
 * during clk_disable().
 *
 * It is intended that underlying PM code will use this information to
 * determine what power state to put the powerdomain enclosing this
 * device into.
 *
 * Multiple calls to omap_pm_set_max_dev_wakeup_lat() will replace the
 * previous wakeup latency values for this device.  To remove the
 * wakeup latency restriction for this device, call with t = -1.
 *
 * Returns -EINVAL for an invalid argument, -ERANGE if the constraint
 * is not satisfiable, or 0 upon success.
 */
int omap_pm_set_max_dev_wakeup_lat(struct device *req_dev, struct device *dev,
				   long t);


/**
 * omap_pm_set_max_sdma_lat - set the maximum system DMA transfer start latency
 * @dev: struct device *
 * @t: maximum DMA transfer start latency in microseconds
 *
 * Request that the maximum system DMA transfer start latency for this
 * device 'dev' should be no greater than 't' microseconds.  "DMA
 * transfer start latency" here is defined as the elapsed time from
 * when a device (e.g., McBSP) requests that a system DMA transfer
 * start or continue, to the time at which data starts to flow into