mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-14 03:16:44 +07:00
f9300eaaac
- New power capping framework and the the Intel Running Average Power Limit (RAPL) driver using it from Srinivas Pandruvada and Jacob Pan. - Addition of the in-kernel switching feature to the arm_big_little cpufreq driver from Viresh Kumar and Nicolas Pitre. - cpufreq support for iMac G5 from Aaro Koskinen. - Baytrail processors support for intel_pstate from Dirk Brandewie. - cpufreq support for Midway/ECX-2000 from Mark Langsdorf. - ARM vexpress/TC2 cpufreq support from Sudeep KarkadaNagesha. - ACPI power management support for the I2C and SPI bus types from Mika Westerberg and Lv Zheng. - cpufreq core fixes and cleanups from Viresh Kumar, Srivatsa S Bhat, Stratos Karafotis, Xiaoguang Chen, Lan Tianyu. - cpufreq drivers updates (mostly fixes and cleanups) from Viresh Kumar, Aaro Koskinen, Jungseok Lee, Sudeep KarkadaNagesha, Lukasz Majewski, Manish Badarkhe, Hans-Christian Egtvedt, Evgeny Kapaev. - intel_pstate updates from Dirk Brandewie and Adrian Huang. - ACPICA update to version 20130927 includig fixes and cleanups and some reduction of divergences between the ACPICA code in the kernel and ACPICA upstream in order to improve the automatic ACPICA patch generation process. From Bob Moore, Lv Zheng, Tomasz Nowicki, Naresh Bhat, Bjorn Helgaas, David E Box. - ACPI IPMI driver fixes and cleanups from Lv Zheng. - ACPI hotplug fixes and cleanups from Bjorn Helgaas, Toshi Kani, Zhang Yanfei, Rafael J Wysocki. - Conversion of the ACPI AC driver to the platform bus type and multiple driver fixes and cleanups related to ACPI from Zhang Rui. - ACPI processor driver fixes and cleanups from Hanjun Guo, Jiang Liu, Bartlomiej Zolnierkiewicz, Mathieu Rhéaume, Rafael J Wysocki. - Fixes and cleanups and new blacklist entries related to the ACPI video support from Aaron Lu, Felipe Contreras, Lennart Poettering, Kirill Tkhai. - cpuidle core cleanups from Viresh Kumar and Lorenzo Pieralisi. - cpuidle drivers fixes and cleanups from Daniel Lezcano, Jingoo Han, Bartlomiej Zolnierkiewicz, Prarit Bhargava. - devfreq updates from Sachin Kamat, Dan Carpenter, Manish Badarkhe. - Operation Performance Points (OPP) core updates from Nishanth Menon. - Runtime power management core fix from Rafael J Wysocki and update from Ulf Hansson. - Hibernation fixes from Aaron Lu and Rafael J Wysocki. - Device suspend/resume lockup detection mechanism from Benoit Goby. - Removal of unused proc directories created for various ACPI drivers from Lan Tianyu. - ACPI LPSS driver fix and new device IDs for the ACPI platform scan handler from Heikki Krogerus and Jarkko Nikula. - New ACPI _OSI blacklist entry for Toshiba NB100 from Levente Kurusa. - Assorted fixes and cleanups related to ACPI from Andy Shevchenko, Al Stone, Bartlomiej Zolnierkiewicz, Colin Ian King, Dan Carpenter, Felipe Contreras, Jianguo Wu, Lan Tianyu, Yinghai Lu, Mathias Krause, Liu Chuansheng. - Assorted PM fixes and cleanups from Andy Shevchenko, Thierry Reding, Jean-Christophe Plagniol-Villard. / -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) iQIcBAABCAAGBQJSfPKLAAoJEILEb/54YlRxH6YQAJwDKi25RCZziFSIenXuqzC/ c6JxoH/tSnDHJHhcTgqh7H7Raa+zmatMDf0m2oEv2Wjfx4Lt4BQK4iefhe/zY4lX yJ8uXDg+U8DYhDX2XwbwnFpd1M1k/A+s2gIHDTHHGnE0kDngXdd8RAFFktBmooTZ l5LBQvOrTlgX/ZfqI/MNmQ6lfY6kbCABGSHV1tUUsDA6Kkvk/LAUTOMSmptv1q22 hcs6k55vR34qADPkUX5GghjmcYJv+gNtvbDEJUjcmCwVoPWouF415m7R5lJ8w3/M 49Q8Tbu5HELWLwca64OorS8qh/P7sgUOf1BX5IDzHnJT+TGeDfvcYbMv2Z275/WZ /bqhuLuKBpsHQ2wvEeT+lYV3FlifKeTf1FBxER3ApjzI3GfpmVVQ+dpEu8e9hcTh ZTPGzziGtoIsHQ0unxb+zQOyt1PmIk+cU4IsKazs5U20zsVDMcKzPrb19Od49vMX gCHvRzNyOTqKWpE83Ss4NGOVPAG02AXiXi/BpuYBHKDy6fTH/liKiCw5xlCDEtmt lQrEbupKpc/dhCLo5ws6w7MZzjWJs2eSEQcNR4DlR++pxIpYOOeoPTXXrghgZt2X mmxZI2qsJ7GAvPzII8OBeF3CRO3fabZ6Nez+M+oEZjGe05ZtpB3ccw410HwieqBn dYpJFt/BHK189odhV9CM =JCxk -----END PGP SIGNATURE----- Merge tag 'pm+acpi-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI and power management updates from Rafael J Wysocki: - New power capping framework and the the Intel Running Average Power Limit (RAPL) driver using it from Srinivas Pandruvada and Jacob Pan. - Addition of the in-kernel switching feature to the arm_big_little cpufreq driver from Viresh Kumar and Nicolas Pitre. - cpufreq support for iMac G5 from Aaro Koskinen. - Baytrail processors support for intel_pstate from Dirk Brandewie. - cpufreq support for Midway/ECX-2000 from Mark Langsdorf. - ARM vexpress/TC2 cpufreq support from Sudeep KarkadaNagesha. - ACPI power management support for the I2C and SPI bus types from Mika Westerberg and Lv Zheng. - cpufreq core fixes and cleanups from Viresh Kumar, Srivatsa S Bhat, Stratos Karafotis, Xiaoguang Chen, Lan Tianyu. - cpufreq drivers updates (mostly fixes and cleanups) from Viresh Kumar, Aaro Koskinen, Jungseok Lee, Sudeep KarkadaNagesha, Lukasz Majewski, Manish Badarkhe, Hans-Christian Egtvedt, Evgeny Kapaev. - intel_pstate updates from Dirk Brandewie and Adrian Huang. - ACPICA update to version 20130927 includig fixes and cleanups and some reduction of divergences between the ACPICA code in the kernel and ACPICA upstream in order to improve the automatic ACPICA patch generation process. From Bob Moore, Lv Zheng, Tomasz Nowicki, Naresh Bhat, Bjorn Helgaas, David E Box. - ACPI IPMI driver fixes and cleanups from Lv Zheng. - ACPI hotplug fixes and cleanups from Bjorn Helgaas, Toshi Kani, Zhang Yanfei, Rafael J Wysocki. - Conversion of the ACPI AC driver to the platform bus type and multiple driver fixes and cleanups related to ACPI from Zhang Rui. - ACPI processor driver fixes and cleanups from Hanjun Guo, Jiang Liu, Bartlomiej Zolnierkiewicz, Mathieu Rhéaume, Rafael J Wysocki. - Fixes and cleanups and new blacklist entries related to the ACPI video support from Aaron Lu, Felipe Contreras, Lennart Poettering, Kirill Tkhai. - cpuidle core cleanups from Viresh Kumar and Lorenzo Pieralisi. - cpuidle drivers fixes and cleanups from Daniel Lezcano, Jingoo Han, Bartlomiej Zolnierkiewicz, Prarit Bhargava. - devfreq updates from Sachin Kamat, Dan Carpenter, Manish Badarkhe. - Operation Performance Points (OPP) core updates from Nishanth Menon. - Runtime power management core fix from Rafael J Wysocki and update from Ulf Hansson. - Hibernation fixes from Aaron Lu and Rafael J Wysocki. - Device suspend/resume lockup detection mechanism from Benoit Goby. - Removal of unused proc directories created for various ACPI drivers from Lan Tianyu. - ACPI LPSS driver fix and new device IDs for the ACPI platform scan handler from Heikki Krogerus and Jarkko Nikula. - New ACPI _OSI blacklist entry for Toshiba NB100 from Levente Kurusa. - Assorted fixes and cleanups related to ACPI from Andy Shevchenko, Al Stone, Bartlomiej Zolnierkiewicz, Colin Ian King, Dan Carpenter, Felipe Contreras, Jianguo Wu, Lan Tianyu, Yinghai Lu, Mathias Krause, Liu Chuansheng. - Assorted PM fixes and cleanups from Andy Shevchenko, Thierry Reding, Jean-Christophe Plagniol-Villard. * tag 'pm+acpi-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (386 commits) cpufreq: conservative: fix requested_freq reduction issue ACPI / hotplug: Consolidate deferred execution of ACPI hotplug routines PM / runtime: Use pm_runtime_put_sync() in __device_release_driver() ACPI / event: remove unneeded NULL pointer check Revert "ACPI / video: Ignore BIOS initial backlight value for HP 250 G1" ACPI / video: Quirk initial backlight level 0 ACPI / video: Fix initial level validity test intel_pstate: skip the driver if ACPI has power mgmt option PM / hibernate: Avoid overflow in hibernate_preallocate_memory() ACPI / hotplug: Do not execute "insert in progress" _OST ACPI / hotplug: Carry out PCI root eject directly ACPI / hotplug: Merge device hot-removal routines ACPI / hotplug: Make acpi_bus_hot_remove_device() internal ACPI / hotplug: Simplify device ejection routines ACPI / hotplug: Fix handle_root_bridge_removal() ACPI / hotplug: Refuse to hot-remove all objects with disabled hotplug ACPI / scan: Start matching drivers after trying scan handlers ACPI: Remove acpi_pci_slot_init() headers from internal.h ACPI / blacklist: fix name of ThinkPad Edge E530 PowerCap: Fix build error with option -Werror=format-security ... Conflicts: arch/arm/mach-omap2/opp.c drivers/Kconfig drivers/spi/spi.c
319 lines
6.8 KiB
C
319 lines
6.8 KiB
C
/*
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* pm.c - Common OMAP2+ power management-related code
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*
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* Copyright (C) 2010 Texas Instruments, Inc.
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* Copyright (C) 2010 Nokia Corporation
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/err.h>
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#include <linux/pm_opp.h>
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#include <linux/export.h>
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#include <linux/suspend.h>
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#include <linux/cpu.h>
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#include <asm/system_misc.h>
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#include "omap-pm.h"
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#include "omap_device.h"
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#include "common.h"
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#include "soc.h"
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#include "prcm-common.h"
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#include "voltage.h"
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#include "powerdomain.h"
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#include "clockdomain.h"
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#include "pm.h"
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#include "twl-common.h"
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/*
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* omap_pm_suspend: points to a function that does the SoC-specific
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* suspend work
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*/
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int (*omap_pm_suspend)(void);
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#ifdef CONFIG_PM
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/**
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* struct omap2_oscillator - Describe the board main oscillator latencies
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* @startup_time: oscillator startup latency
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* @shutdown_time: oscillator shutdown latency
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*/
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struct omap2_oscillator {
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u32 startup_time;
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u32 shutdown_time;
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};
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static struct omap2_oscillator oscillator = {
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.startup_time = ULONG_MAX,
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.shutdown_time = ULONG_MAX,
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};
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void omap_pm_setup_oscillator(u32 tstart, u32 tshut)
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{
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oscillator.startup_time = tstart;
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oscillator.shutdown_time = tshut;
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}
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void omap_pm_get_oscillator(u32 *tstart, u32 *tshut)
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{
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if (!tstart || !tshut)
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return;
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*tstart = oscillator.startup_time;
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*tshut = oscillator.shutdown_time;
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}
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#endif
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static int __init _init_omap_device(char *name)
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{
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struct omap_hwmod *oh;
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struct platform_device *pdev;
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oh = omap_hwmod_lookup(name);
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if (WARN(!oh, "%s: could not find omap_hwmod for %s\n",
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__func__, name))
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return -ENODEV;
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pdev = omap_device_build(oh->name, 0, oh, NULL, 0);
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if (WARN(IS_ERR(pdev), "%s: could not build omap_device for %s\n",
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__func__, name))
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return -ENODEV;
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return 0;
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}
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/*
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* Build omap_devices for processors and bus.
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*/
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static void __init omap2_init_processor_devices(void)
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{
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_init_omap_device("mpu");
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if (omap3_has_iva())
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_init_omap_device("iva");
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if (cpu_is_omap44xx()) {
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_init_omap_device("l3_main_1");
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_init_omap_device("dsp");
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_init_omap_device("iva");
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} else {
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_init_omap_device("l3_main");
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}
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}
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int __init omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused)
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{
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/* XXX The usecount test is racy */
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if ((clkdm->flags & CLKDM_CAN_ENABLE_AUTO) &&
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!(clkdm->flags & CLKDM_MISSING_IDLE_REPORTING))
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clkdm_allow_idle(clkdm);
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else if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP &&
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clkdm->usecount == 0)
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clkdm_sleep(clkdm);
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return 0;
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}
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/*
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* This API is to be called during init to set the various voltage
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* domains to the voltage as per the opp table. Typically we boot up
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* at the nominal voltage. So this function finds out the rate of
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* the clock associated with the voltage domain, finds out the correct
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* opp entry and sets the voltage domain to the voltage specified
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* in the opp entry
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*/
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static int __init omap2_set_init_voltage(char *vdd_name, char *clk_name,
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const char *oh_name)
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{
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struct voltagedomain *voltdm;
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struct clk *clk;
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struct dev_pm_opp *opp;
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unsigned long freq, bootup_volt;
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struct device *dev;
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if (!vdd_name || !clk_name || !oh_name) {
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pr_err("%s: invalid parameters\n", __func__);
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goto exit;
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}
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if (!strncmp(oh_name, "mpu", 3))
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/*
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* All current OMAPs share voltage rail and clock
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* source, so CPU0 is used to represent the MPU-SS.
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*/
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dev = get_cpu_device(0);
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else
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dev = omap_device_get_by_hwmod_name(oh_name);
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if (IS_ERR(dev)) {
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pr_err("%s: Unable to get dev pointer for hwmod %s\n",
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__func__, oh_name);
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goto exit;
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}
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voltdm = voltdm_lookup(vdd_name);
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if (!voltdm) {
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pr_err("%s: unable to get vdd pointer for vdd_%s\n",
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__func__, vdd_name);
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goto exit;
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}
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clk = clk_get(NULL, clk_name);
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if (IS_ERR(clk)) {
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pr_err("%s: unable to get clk %s\n", __func__, clk_name);
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goto exit;
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}
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freq = clk_get_rate(clk);
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clk_put(clk);
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rcu_read_lock();
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opp = dev_pm_opp_find_freq_ceil(dev, &freq);
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if (IS_ERR(opp)) {
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rcu_read_unlock();
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pr_err("%s: unable to find boot up OPP for vdd_%s\n",
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__func__, vdd_name);
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goto exit;
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}
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bootup_volt = dev_pm_opp_get_voltage(opp);
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rcu_read_unlock();
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if (!bootup_volt) {
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pr_err("%s: unable to find voltage corresponding to the bootup OPP for vdd_%s\n",
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__func__, vdd_name);
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goto exit;
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}
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voltdm_scale(voltdm, bootup_volt);
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return 0;
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exit:
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pr_err("%s: unable to set vdd_%s\n", __func__, vdd_name);
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return -EINVAL;
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}
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#ifdef CONFIG_SUSPEND
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static int omap_pm_enter(suspend_state_t suspend_state)
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{
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int ret = 0;
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if (!omap_pm_suspend)
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return -ENOENT; /* XXX doublecheck */
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switch (suspend_state) {
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case PM_SUSPEND_STANDBY:
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case PM_SUSPEND_MEM:
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ret = omap_pm_suspend();
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break;
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default:
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ret = -EINVAL;
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}
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return ret;
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}
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static int omap_pm_begin(suspend_state_t state)
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{
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cpu_idle_poll_ctrl(true);
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if (cpu_is_omap34xx())
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omap_prcm_irq_prepare();
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return 0;
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}
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static void omap_pm_end(void)
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{
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cpu_idle_poll_ctrl(false);
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}
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static void omap_pm_finish(void)
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{
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if (cpu_is_omap34xx())
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omap_prcm_irq_complete();
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}
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static const struct platform_suspend_ops omap_pm_ops = {
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.begin = omap_pm_begin,
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.end = omap_pm_end,
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.enter = omap_pm_enter,
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.finish = omap_pm_finish,
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.valid = suspend_valid_only_mem,
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};
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#endif /* CONFIG_SUSPEND */
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static void __init omap3_init_voltages(void)
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{
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if (!cpu_is_omap34xx())
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return;
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omap2_set_init_voltage("mpu_iva", "dpll1_ck", "mpu");
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omap2_set_init_voltage("core", "l3_ick", "l3_main");
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}
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static void __init omap4_init_voltages(void)
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{
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if (!cpu_is_omap44xx())
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return;
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omap2_set_init_voltage("mpu", "dpll_mpu_ck", "mpu");
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omap2_set_init_voltage("core", "l3_div_ck", "l3_main_1");
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omap2_set_init_voltage("iva", "dpll_iva_m5x2_ck", "iva");
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}
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static inline void omap_init_cpufreq(void)
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{
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struct platform_device_info devinfo = { };
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if (!of_have_populated_dt())
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devinfo.name = "omap-cpufreq";
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else
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devinfo.name = "cpufreq-cpu0";
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platform_device_register_full(&devinfo);
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}
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static int __init omap2_common_pm_init(void)
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{
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if (!of_have_populated_dt())
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omap2_init_processor_devices();
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omap_pm_if_init();
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return 0;
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}
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omap_postcore_initcall(omap2_common_pm_init);
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int __init omap2_common_pm_late_init(void)
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{
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/*
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* In the case of DT, the PMIC and SR initialization will be done using
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* a completely different mechanism.
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* Disable this part if a DT blob is available.
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*/
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if (!of_have_populated_dt()) {
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/* Init the voltage layer */
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omap_pmic_late_init();
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omap_voltage_late_init();
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/* Initialize the voltages */
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omap3_init_voltages();
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omap4_init_voltages();
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/* Smartreflex device init */
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omap_devinit_smartreflex();
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}
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/* cpufreq dummy device instantiation */
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omap_init_cpufreq();
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#ifdef CONFIG_SUSPEND
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suspend_set_ops(&omap_pm_ops);
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#endif
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return 0;
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}
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