Power management and ACPI updates for v4.4-rc1

- ACPICA update to upstream revision 20150930 (Bob Moore, Lv Zheng).
 
    The most significant change is to allow the AML debugger to be
    built into the kernel.  On top of that there is an update related
    to the NFIT table (the ACPI persistent memory interface)
    and a few fixes and cleanups.
 
  - ACPI CPPC2 (Collaborative Processor Performance Control v2)
    support along with a cpufreq frontend (Ashwin Chaugule).
 
    This can only be enabled on ARM64 at this point.
 
  - New ACPI infrastructure for the early probing of IRQ chips and
    clock sources (Marc Zyngier).
 
  - Support for a new hierarchical properties extension of the ACPI
    _DSD (Device Specific Data) device configuration object allowing
    the kernel to handle hierarchical properties (provided by the
    platform firmware this way) automatically and make them available
    to device drivers via the generic device properties interface
    (Rafael Wysocki).
 
  - Generic device properties API extension to obtain an index of
    certain string value in an array of strings, along the lines of
    of_property_match_string(), but working for all of the supported
    firmware node types, and support for the "dma-names" device
    property based on it (Mika Westerberg).
 
  - ACPI core fix to parse the MADT (Multiple APIC Description Table)
    entries in the order expected by platform firmware (and mandated
    by the specification) to avoid confusion on systems with more than
    255 logical CPUs (Lukasz Anaczkowski).
 
  - Consolidation of the ACPI-based handling of PCI host bridges
    on x86 and ia64 (Jiang Liu).
 
  - ACPI core fixes to ensure that the correct IRQ number is used to
    represent the SCI (System Control Interrupt) in the cases when
    it has been re-mapped (Chen Yu).
 
  - New ACPI backlight quirk for Lenovo IdeaPad S405 (Hans de Goede).
 
  - ACPI EC driver fixes (Lv Zheng).
 
  - Assorted ACPI fixes and cleanups (Dan Carpenter, Insu Yun, Jiri
    Kosina, Rami Rosen, Rasmus Villemoes).
 
  - New mechanism in the PM core allowing drivers to check if the
    platform firmware is going to be involved in the upcoming system
    suspend or if it has been involved in the suspend the system is
    resuming from at the moment (Rafael Wysocki).
 
    This should allow drivers to optimize their suspend/resume
    handling in some cases and the changes include a couple of users
    of it (the i8042 input driver, PCI PM).
 
  - PCI PM fix to prevent runtime-suspended devices with PME enabled
    from being resumed during system suspend even if they aren't
    configured to wake up the system from sleep (Rafael Wysocki).
 
  - New mechanism to report the number of a wakeup IRQ that woke up
    the system from sleep last time (Alexandra Yates).
 
  - Removal of unused interfaces from the generic power domains
    framework and fixes related to latency measurements in that
    code (Ulf Hansson, Daniel Lezcano).
 
  - cpufreq core sysfs interface rework to make it handle CPUs that
    share performance scaling settings (represented by a common
    cpufreq policy object) more symmetrically (Viresh Kumar).
 
    This should help to simplify the CPU offline/online handling among
    other things.
 
  - cpufreq core fixes and cleanups (Viresh Kumar).
 
  - intel_pstate fixes related to the Turbo Activation Ratio (TAR)
    mechanism on client platforms which causes the turbo P-states
    range to vary depending on platform firmware settings (Srinivas
    Pandruvada).
 
  - intel_pstate sysfs interface fix (Prarit Bhargava).
 
  - Assorted cpufreq driver (imx, tegra20, powernv, integrator) fixes
    and cleanups (Bai Ping, Bartlomiej Zolnierkiewicz, Shilpasri G
    Bhat, Luis de Bethencourt).
 
  - cpuidle mvebu driver cleanups (Russell King).
 
  - OPP (Operating Performance Points) framework code reorganization
    to make it more maintainable (Viresh Kumar).
 
  - Intel Broxton support for the RAPL (Running Average Power Limits)
    power capping driver (Amy Wiles).
 
  - Assorted power management code fixes and cleanups (Dan Carpenter,
    Geert Uytterhoeven, Geliang Tang, Luis de Bethencourt, Rasmus
    Villemoes).
 
 /
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Merge tag 'pm+acpi-4.4-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management and ACPI updates from Rafael Wysocki:
 "Quite a new features are included this time.

  First off, the Collaborative Processor Performance Control interface
  (version 2) defined by ACPI will now be supported on ARM64 along with
  a cpufreq frontend for CPU performance scaling.

  Second, ACPI gets a new infrastructure for the early probing of IRQ
  chips and clock sources (along the lines of the existing similar
  mechanism for DT).

  Next, the ACPI core and the generic device properties API will now
  support a recently introduced hierarchical properties extension of the
  _DSD (Device Specific Data) ACPI device configuration object.  If the
  ACPI platform firmware uses that extension to organize device
  properties in a hierarchical way, the kernel will automatically handle
  it and make those properties available to device drivers via the
  generic device properties API.

  It also will be possible to build the ACPICA's AML interpreter
  debugger into the kernel now and use that to diagnose AML-related
  problems more efficiently.  In the future, this should make it
  possible to single-step AML execution and do similar things.
  Interesting stuff, although somewhat experimental at this point.

  Finally, the PM core gets a new mechanism that can be used by device
  drivers to distinguish between suspend-to-RAM (based on platform
  firmware support) and suspend-to-idle (or other variants of system
  suspend the platform firmware is not involved in) and possibly
  optimize their device suspend/resume handling accordingly.

  In addition to that, some existing features are re-organized quite
  substantially.

  First, the ACPI-based handling of PCI host bridges on x86 and ia64 is
  unified and the common code goes into the ACPI core (so as to reduce
  code duplication and eliminate non-essential differences between the
  two architectures in that area).

  Second, the Operating Performance Points (OPP) framework is
  reorganized to make the code easier to find and follow.

  Next, the cpufreq core's sysfs interface is reorganized to get rid of
  the "primary CPU" concept for configurations in which the same
  performance scaling settings are shared between multiple CPUs.

  Finally, some interfaces that aren't necessary any more are dropped
  from the generic power domains framework.

  On top of the above we have some minor extensions, cleanups and bug
  fixes in multiple places, as usual.

  Specifics:

   - ACPICA update to upstream revision 20150930 (Bob Moore, Lv Zheng).

     The most significant change is to allow the AML debugger to be
     built into the kernel.  On top of that there is an update related
     to the NFIT table (the ACPI persistent memory interface) and a few
     fixes and cleanups.

   - ACPI CPPC2 (Collaborative Processor Performance Control v2) support
     along with a cpufreq frontend (Ashwin Chaugule).

     This can only be enabled on ARM64 at this point.

   - New ACPI infrastructure for the early probing of IRQ chips and
     clock sources (Marc Zyngier).

   - Support for a new hierarchical properties extension of the ACPI
     _DSD (Device Specific Data) device configuration object allowing
     the kernel to handle hierarchical properties (provided by the
     platform firmware this way) automatically and make them available
     to device drivers via the generic device properties interface
     (Rafael Wysocki).

   - Generic device properties API extension to obtain an index of
     certain string value in an array of strings, along the lines of
     of_property_match_string(), but working for all of the supported
     firmware node types, and support for the "dma-names" device
     property based on it (Mika Westerberg).

   - ACPI core fix to parse the MADT (Multiple APIC Description Table)
     entries in the order expected by platform firmware (and mandated by
     the specification) to avoid confusion on systems with more than 255
     logical CPUs (Lukasz Anaczkowski).

   - Consolidation of the ACPI-based handling of PCI host bridges on x86
     and ia64 (Jiang Liu).

   - ACPI core fixes to ensure that the correct IRQ number is used to
     represent the SCI (System Control Interrupt) in the cases when it
     has been re-mapped (Chen Yu).

   - New ACPI backlight quirk for Lenovo IdeaPad S405 (Hans de Goede).

   - ACPI EC driver fixes (Lv Zheng).

   - Assorted ACPI fixes and cleanups (Dan Carpenter, Insu Yun, Jiri
     Kosina, Rami Rosen, Rasmus Villemoes).

   - New mechanism in the PM core allowing drivers to check if the
     platform firmware is going to be involved in the upcoming system
     suspend or if it has been involved in the suspend the system is
     resuming from at the moment (Rafael Wysocki).

     This should allow drivers to optimize their suspend/resume handling
     in some cases and the changes include a couple of users of it (the
     i8042 input driver, PCI PM).

   - PCI PM fix to prevent runtime-suspended devices with PME enabled
     from being resumed during system suspend even if they aren't
     configured to wake up the system from sleep (Rafael Wysocki).

   - New mechanism to report the number of a wakeup IRQ that woke up the
     system from sleep last time (Alexandra Yates).

   - Removal of unused interfaces from the generic power domains
     framework and fixes related to latency measurements in that code
     (Ulf Hansson, Daniel Lezcano).

   - cpufreq core sysfs interface rework to make it handle CPUs that
     share performance scaling settings (represented by a common cpufreq
     policy object) more symmetrically (Viresh Kumar).

     This should help to simplify the CPU offline/online handling among
     other things.

   - cpufreq core fixes and cleanups (Viresh Kumar).

   - intel_pstate fixes related to the Turbo Activation Ratio (TAR)
     mechanism on client platforms which causes the turbo P-states range
     to vary depending on platform firmware settings (Srinivas
     Pandruvada).

   - intel_pstate sysfs interface fix (Prarit Bhargava).

   - Assorted cpufreq driver (imx, tegra20, powernv, integrator) fixes
     and cleanups (Bai Ping, Bartlomiej Zolnierkiewicz, Shilpasri G
     Bhat, Luis de Bethencourt).

   - cpuidle mvebu driver cleanups (Russell King).

   - OPP (Operating Performance Points) framework code reorganization to
     make it more maintainable (Viresh Kumar).

   - Intel Broxton support for the RAPL (Running Average Power Limits)
     power capping driver (Amy Wiles).

   - Assorted power management code fixes and cleanups (Dan Carpenter,
     Geert Uytterhoeven, Geliang Tang, Luis de Bethencourt, Rasmus
     Villemoes)"

* tag 'pm+acpi-4.4-rc1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (108 commits)
  cpufreq: postfix policy directory with the first CPU in related_cpus
  cpufreq: create cpu/cpufreq/policyX directories
  cpufreq: remove cpufreq_sysfs_{create|remove}_file()
  cpufreq: create cpu/cpufreq at boot time
  cpufreq: Use cpumask_copy instead of cpumask_or to copy a mask
  cpufreq: ondemand: Drop unnecessary locks from update_sampling_rate()
  PM / Domains: Merge measurements for PM QoS device latencies
  PM / Domains: Don't measure ->start|stop() latency in system PM callbacks
  PM / clk: Fix broken build due to non-matching code and header #ifdefs
  ACPI / Documentation: add copy_dsdt to ACPI format options
  ACPI / sysfs: correctly check failing memory allocation
  ACPI / video: Add a quirk to force native backlight on Lenovo IdeaPad S405
  ACPI / CPPC: Fix potential memory leak
  ACPI / CPPC: signedness bug in register_pcc_channel()
  ACPI / PAD: power_saving_thread() is not freezable
  ACPI / PM: Fix incorrect wakeup IRQ setting during suspend-to-idle
  ACPI: Using correct irq when waiting for events
  ACPI: Use correct IRQ when uninstalling ACPI interrupt handler
  cpuidle: mvebu: disable the bind/unbind attributes and use builtin_platform_driver
  cpuidle: mvebu: clean up multiple platform drivers
  ...
This commit is contained in:
Linus Torvalds 2015-11-04 18:10:13 -08:00
commit 0d51ce9ca1
175 changed files with 13959 additions and 2196 deletions

View file

@ -49,7 +49,7 @@ static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
return adev ? adev->handle : NULL;
}
#define ACPI_COMPANION(dev) to_acpi_node((dev)->fwnode)
#define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode)
#define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \
acpi_fwnode_handle(adev) : NULL)
#define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
@ -69,7 +69,7 @@ static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
static inline bool has_acpi_companion(struct device *dev)
{
return is_acpi_node(dev->fwnode);
return is_acpi_device_node(dev->fwnode);
}
static inline void acpi_preset_companion(struct device *dev,
@ -131,6 +131,12 @@ static inline void acpi_initrd_override(void *data, size_t size)
(!entry) || (unsigned long)entry + sizeof(*entry) > end || \
((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
struct acpi_subtable_proc {
int id;
acpi_tbl_entry_handler handler;
int count;
};
char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
void __acpi_unmap_table(char *map, unsigned long size);
int early_acpi_boot_init(void);
@ -146,9 +152,16 @@ int __init acpi_parse_entries(char *id, unsigned long table_size,
struct acpi_table_header *table_header,
int entry_id, unsigned int max_entries);
int __init acpi_table_parse_entries(char *id, unsigned long table_size,
int entry_id,
acpi_tbl_entry_handler handler,
unsigned int max_entries);
int entry_id,
acpi_tbl_entry_handler handler,
unsigned int max_entries);
int __init acpi_table_parse_entries(char *id, unsigned long table_size,
int entry_id,
acpi_tbl_entry_handler handler,
unsigned int max_entries);
int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
struct acpi_subtable_proc *proc, int proc_num,
unsigned int max_entries);
int acpi_table_parse_madt(enum acpi_madt_type id,
acpi_tbl_entry_handler handler,
unsigned int max_entries);
@ -193,6 +206,12 @@ int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
void acpi_irq_stats_init(void);
extern u32 acpi_irq_handled;
extern u32 acpi_irq_not_handled;
extern unsigned int acpi_sci_irq;
#define INVALID_ACPI_IRQ ((unsigned)-1)
static inline bool acpi_sci_irq_valid(void)
{
return acpi_sci_irq != INVALID_ACPI_IRQ;
}
extern int sbf_port;
extern unsigned long acpi_realmode_flags;
@ -465,7 +484,22 @@ static inline bool is_acpi_node(struct fwnode_handle *fwnode)
return false;
}
static inline struct acpi_device *to_acpi_node(struct fwnode_handle *fwnode)
static inline bool is_acpi_device_node(struct fwnode_handle *fwnode)
{
return false;
}
static inline struct acpi_device *to_acpi_device_node(struct fwnode_handle *fwnode)
{
return NULL;
}
static inline bool is_acpi_data_node(struct fwnode_handle *fwnode)
{
return false;
}
static inline struct acpi_data_node *to_acpi_data_node(struct fwnode_handle *fwnode)
{
return NULL;
}
@ -747,22 +781,76 @@ struct acpi_reference_args {
#ifdef CONFIG_ACPI
int acpi_dev_get_property(struct acpi_device *adev, const char *name,
acpi_object_type type, const union acpi_object **obj);
int acpi_dev_get_property_array(struct acpi_device *adev, const char *name,
acpi_object_type type,
const union acpi_object **obj);
int acpi_dev_get_property_reference(struct acpi_device *adev,
const char *name, size_t index,
struct acpi_reference_args *args);
int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
const char *name, size_t index,
struct acpi_reference_args *args);
int acpi_dev_prop_get(struct acpi_device *adev, const char *propname,
void **valptr);
int acpi_node_prop_get(struct fwnode_handle *fwnode, const char *propname,
void **valptr);
int acpi_dev_prop_read_single(struct acpi_device *adev, const char *propname,
enum dev_prop_type proptype, void *val);
int acpi_node_prop_read(struct fwnode_handle *fwnode, const char *propname,
enum dev_prop_type proptype, void *val, size_t nval);
int acpi_dev_prop_read(struct acpi_device *adev, const char *propname,
enum dev_prop_type proptype, void *val, size_t nval);
struct acpi_device *acpi_get_next_child(struct device *dev,
struct acpi_device *child);
struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
struct fwnode_handle *subnode);
struct acpi_probe_entry;
typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *,
struct acpi_probe_entry *);
#define ACPI_TABLE_ID_LEN 5
/**
* struct acpi_probe_entry - boot-time probing entry
* @id: ACPI table name
* @type: Optional subtable type to match
* (if @id contains subtables)
* @subtable_valid: Optional callback to check the validity of
* the subtable
* @probe_table: Callback to the driver being probed when table
* match is successful
* @probe_subtbl: Callback to the driver being probed when table and
* subtable match (and optional callback is successful)
* @driver_data: Sideband data provided back to the driver
*/
struct acpi_probe_entry {
__u8 id[ACPI_TABLE_ID_LEN];
__u8 type;
acpi_probe_entry_validate_subtbl subtable_valid;
union {
acpi_tbl_table_handler probe_table;
acpi_tbl_entry_handler probe_subtbl;
};
kernel_ulong_t driver_data;
};
#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, valid, data, fn) \
static const struct acpi_probe_entry __acpi_probe_##name \
__used __section(__##table##_acpi_probe_table) \
= { \
.id = table_id, \
.type = subtable, \
.subtable_valid = valid, \
.probe_table = (acpi_tbl_table_handler)fn, \
.driver_data = data, \
}
#define ACPI_PROBE_TABLE(name) __##name##_acpi_probe_table
#define ACPI_PROBE_TABLE_END(name) __##name##_acpi_probe_table_end
int __acpi_probe_device_table(struct acpi_probe_entry *start, int nr);
#define acpi_probe_device_table(t) \
({ \
extern struct acpi_probe_entry ACPI_PROBE_TABLE(t), \
ACPI_PROBE_TABLE_END(t); \
__acpi_probe_device_table(&ACPI_PROBE_TABLE(t), \
(&ACPI_PROBE_TABLE_END(t) - \
&ACPI_PROBE_TABLE(t))); \
})
#else
static inline int acpi_dev_get_property(struct acpi_device *adev,
const char *name, acpi_object_type type,
@ -770,16 +858,17 @@ static inline int acpi_dev_get_property(struct acpi_device *adev,
{
return -ENXIO;
}
static inline int acpi_dev_get_property_array(struct acpi_device *adev,
const char *name,
acpi_object_type type,
const union acpi_object **obj)
static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
const char *name, const char *cells_name,
size_t index, struct acpi_reference_args *args)
{
return -ENXIO;
}
static inline int acpi_dev_get_property_reference(struct acpi_device *adev,
const char *name, const char *cells_name,
size_t index, struct acpi_reference_args *args)
static inline int acpi_node_prop_get(struct fwnode_handle *fwnode,
const char *propname,
void **valptr)
{
return -ENXIO;
}
@ -799,6 +888,14 @@ static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
return -ENXIO;
}
static inline int acpi_node_prop_read(struct fwnode_handle *fwnode,
const char *propname,
enum dev_prop_type proptype,
void *val, size_t nval)
{
return -ENXIO;
}
static inline int acpi_dev_prop_read(struct acpi_device *adev,
const char *propname,
enum dev_prop_type proptype,
@ -807,12 +904,22 @@ static inline int acpi_dev_prop_read(struct acpi_device *adev,
return -ENXIO;
}
static inline struct acpi_device *acpi_get_next_child(struct device *dev,
struct acpi_device *child)
static inline struct fwnode_handle *acpi_get_next_subnode(struct device *dev,
struct fwnode_handle *subnode)
{
return NULL;
}
#define ACPI_DECLARE_PROBE_ENTRY(table, name, table_id, subtable, validate, data, fn) \
static const void * __acpi_table_##name[] \
__attribute__((unused)) \
= { (void *) table_id, \
(void *) subtable, \
(void *) valid, \
(void *) fn, \
(void *) data }
#define acpi_probe_device_table(t) ({ int __r = 0; __r;})
#endif
#endif /*_LINUX_ACPI_H*/

View file

@ -1,10 +0,0 @@
#ifndef _LINUX_ACPI_IRQ_H
#define _LINUX_ACPI_IRQ_H
#include <linux/irq.h>
#ifndef acpi_irq_init
static inline void acpi_irq_init(void) { }
#endif
#endif /* _LINUX_ACPI_IRQ_H */

View file

@ -246,16 +246,13 @@ extern int clocksource_i8253_init(void);
#define CLOCKSOURCE_OF_DECLARE(name, compat, fn) \
OF_DECLARE_1(clksrc, name, compat, fn)
#ifdef CONFIG_CLKSRC_OF
extern void clocksource_of_init(void);
#ifdef CONFIG_CLKSRC_PROBE
extern void clocksource_probe(void);
#else
static inline void clocksource_of_init(void) {}
static inline void clocksource_probe(void) {}
#endif
#ifdef CONFIG_ACPI
void acpi_generic_timer_init(void);
#else
static inline void acpi_generic_timer_init(void) { }
#endif
#define CLOCKSOURCE_ACPI_DECLARE(name, table_id, fn) \
ACPI_DECLARE_PROBE_ENTRY(clksrc, name, table_id, 0, NULL, 0, fn)
#endif /* _LINUX_CLOCKSOURCE_H */

View file

@ -65,7 +65,6 @@ struct cpufreq_policy {
unsigned int shared_type; /* ACPI: ANY or ALL affected CPUs
should set cpufreq */
unsigned int cpu; /* cpu managing this policy, must be online */
unsigned int kobj_cpu; /* cpu managing sysfs files, can be offline */
struct clk *clk;
struct cpufreq_cpuinfo cpuinfo;/* see above */
@ -149,10 +148,6 @@ static inline bool policy_is_shared(struct cpufreq_policy *policy)
/* /sys/devices/system/cpu/cpufreq: entry point for global variables */
extern struct kobject *cpufreq_global_kobject;
int cpufreq_get_global_kobject(void);
void cpufreq_put_global_kobject(void);
int cpufreq_sysfs_create_file(const struct attribute *attr);
void cpufreq_sysfs_remove_file(const struct attribute *attr);
#ifdef CONFIG_CPU_FREQ
unsigned int cpufreq_get(unsigned int cpu);

View file

@ -16,6 +16,7 @@ enum fwnode_type {
FWNODE_INVALID = 0,
FWNODE_OF,
FWNODE_ACPI,
FWNODE_ACPI_DATA,
FWNODE_PDATA,
FWNODE_IRQCHIP,
};

View file

@ -94,6 +94,7 @@ struct resource {
/* PnP I/O specific bits (IORESOURCE_BITS) */
#define IORESOURCE_IO_16BIT_ADDR (1<<0)
#define IORESOURCE_IO_FIXED (1<<1)
#define IORESOURCE_IO_SPARSE (1<<2)
/* PCI ROM control bits (IORESOURCE_BITS) */
#define IORESOURCE_ROM_ENABLE (1<<0) /* ROM is enabled, same as PCI_ROM_ADDRESS_ENABLE */

View file

@ -11,6 +11,7 @@
#ifndef _LINUX_IRQCHIP_H
#define _LINUX_IRQCHIP_H
#include <linux/acpi.h>
#include <linux/of.h>
/*
@ -25,6 +26,22 @@
*/
#define IRQCHIP_DECLARE(name, compat, fn) OF_DECLARE_2(irqchip, name, compat, fn)
/*
* This macro must be used by the different irqchip drivers to declare
* the association between their version and their initialization function.
*
* @name: name that must be unique accross all IRQCHIP_ACPI_DECLARE of the
* same file.
* @subtable: Subtable to be identified in MADT
* @validate: Function to be called on that subtable to check its validity.
* Can be NULL.
* @data: data to be checked by the validate function.
* @fn: initialization function
*/
#define IRQCHIP_ACPI_DECLARE(name, subtable, validate, data, fn) \
ACPI_DECLARE_PROBE_ENTRY(irqchip, name, ACPI_SIG_MADT, \
subtable, validate, data, fn)
#ifdef CONFIG_IRQCHIP
void irqchip_init(void);
#else

View file

@ -1,31 +0,0 @@
/*
* Copyright (C) 2014, Linaro Ltd.
* Author: Tomasz Nowicki <tomasz.nowicki@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef ARM_GIC_ACPI_H_
#define ARM_GIC_ACPI_H_
#ifdef CONFIG_ACPI
/*
* Hard code here, we can not get memory size from MADT (but FDT does),
* Actually no need to do that, because this size can be inferred
* from GIC spec.
*/
#define ACPI_GICV2_DIST_MEM_SIZE (SZ_4K)
#define ACPI_GIC_CPU_IF_MEM_SIZE (SZ_8K)
struct acpi_table_header;
int gic_v2_acpi_init(struct acpi_table_header *table);
void acpi_gic_init(void);
#else
static inline void acpi_gic_init(void) { }
#endif
#endif /* ARM_GIC_ACPI_H_ */

View file

@ -52,6 +52,30 @@ static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
return ACPI_HANDLE(dev);
}
struct acpi_pci_root;
struct acpi_pci_root_ops;
struct acpi_pci_root_info {
struct acpi_pci_root *root;
struct acpi_device *bridge;
struct acpi_pci_root_ops *ops;
struct list_head resources;
char name[16];
};
struct acpi_pci_root_ops {
struct pci_ops *pci_ops;
int (*init_info)(struct acpi_pci_root_info *info);
void (*release_info)(struct acpi_pci_root_info *info);
int (*prepare_resources)(struct acpi_pci_root_info *info);
};
extern int acpi_pci_probe_root_resources(struct acpi_pci_root_info *info);
extern struct pci_bus *acpi_pci_root_create(struct acpi_pci_root *root,
struct acpi_pci_root_ops *ops,
struct acpi_pci_root_info *info,
void *sd);
void acpi_pci_add_bus(struct pci_bus *bus);
void acpi_pci_remove_bus(struct pci_bus *bus);

View file

@ -732,6 +732,7 @@ extern int pm_generic_poweroff_noirq(struct device *dev);
extern int pm_generic_poweroff_late(struct device *dev);
extern int pm_generic_poweroff(struct device *dev);
extern void pm_generic_complete(struct device *dev);
extern void pm_complete_with_resume_check(struct device *dev);
#else /* !CONFIG_PM_SLEEP */

View file

@ -15,7 +15,6 @@
#include <linux/err.h>
#include <linux/of.h>
#include <linux/notifier.h>
#include <linux/cpuidle.h>
/* Defines used for the flags field in the struct generic_pm_domain */
#define GENPD_FLAG_PM_CLK (1U << 0) /* PM domain uses PM clk */
@ -38,11 +37,6 @@ struct gpd_dev_ops {
bool (*active_wakeup)(struct device *dev);
};
struct gpd_cpuidle_data {
unsigned int saved_exit_latency;
struct cpuidle_state *idle_state;
};
struct generic_pm_domain {
struct dev_pm_domain domain; /* PM domain operations */
struct list_head gpd_list_node; /* Node in the global PM domains list */
@ -53,7 +47,6 @@ struct generic_pm_domain {
struct dev_power_governor *gov;
struct work_struct power_off_work;
const char *name;
unsigned int in_progress; /* Number of devices being suspended now */
atomic_t sd_count; /* Number of subdomains with power "on" */
enum gpd_status status; /* Current state of the domain */
unsigned int device_count; /* Number of devices */
@ -68,7 +61,6 @@ struct generic_pm_domain {
s64 max_off_time_ns; /* Maximum allowed "suspended" time. */
bool max_off_time_changed;
bool cached_power_down_ok;
struct gpd_cpuidle_data *cpuidle_data;
int (*attach_dev)(struct generic_pm_domain *domain,
struct device *dev);
void (*detach_dev)(struct generic_pm_domain *domain,
@ -89,10 +81,8 @@ struct gpd_link {
};
struct gpd_timing_data {
s64 stop_latency_ns;
s64 start_latency_ns;
s64 save_state_latency_ns;
s64 restore_state_latency_ns;
s64 suspend_latency_ns;
s64 resume_latency_ns;
s64 effective_constraint_ns;
bool constraint_changed;
bool cached_stop_ok;
@ -125,29 +115,15 @@ extern int __pm_genpd_add_device(struct generic_pm_domain *genpd,
struct device *dev,
struct gpd_timing_data *td);
extern int __pm_genpd_name_add_device(const char *domain_name,
struct device *dev,
struct gpd_timing_data *td);
extern int pm_genpd_remove_device(struct generic_pm_domain *genpd,
struct device *dev);
extern int pm_genpd_add_subdomain(struct generic_pm_domain *genpd,
struct generic_pm_domain *new_subdomain);
extern int pm_genpd_add_subdomain_names(const char *master_name,
const char *subdomain_name);
extern int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
struct generic_pm_domain *target);
extern int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state);
extern int pm_genpd_name_attach_cpuidle(const char *name, int state);
extern int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd);
extern int pm_genpd_name_detach_cpuidle(const char *name);
extern void pm_genpd_init(struct generic_pm_domain *genpd,
struct dev_power_governor *gov, bool is_off);
extern int pm_genpd_poweron(struct generic_pm_domain *genpd);
extern int pm_genpd_name_poweron(const char *domain_name);
extern void pm_genpd_poweroff_unused(void);
extern struct dev_power_governor simple_qos_governor;
extern struct dev_power_governor pm_domain_always_on_gov;
#else
@ -166,12 +142,6 @@ static inline int __pm_genpd_add_device(struct generic_pm_domain *genpd,
{
return -ENOSYS;
}
static inline int __pm_genpd_name_add_device(const char *domain_name,
struct device *dev,
struct gpd_timing_data *td)
{
return -ENOSYS;
}
static inline int pm_genpd_remove_device(struct generic_pm_domain *genpd,
struct device *dev)
{
@ -182,45 +152,15 @@ static inline int pm_genpd_add_subdomain(struct generic_pm_domain *genpd,
{
return -ENOSYS;
}
static inline int pm_genpd_add_subdomain_names(const char *master_name,
const char *subdomain_name)
{
return -ENOSYS;
}
static inline int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
struct generic_pm_domain *target)
{
return -ENOSYS;
}
static inline int pm_genpd_attach_cpuidle(struct generic_pm_domain *genpd, int st)
{
return -ENOSYS;
}
static inline int pm_genpd_name_attach_cpuidle(const char *name, int state)
{
return -ENOSYS;
}
static inline int pm_genpd_detach_cpuidle(struct generic_pm_domain *genpd)
{
return -ENOSYS;
}
static inline int pm_genpd_name_detach_cpuidle(const char *name)
{
return -ENOSYS;
}
static inline void pm_genpd_init(struct generic_pm_domain *genpd,
struct dev_power_governor *gov, bool is_off)
{
}
static inline int pm_genpd_poweron(struct generic_pm_domain *genpd)
{
return -ENOSYS;
}
static inline int pm_genpd_name_poweron(const char *domain_name)
{
return -ENOSYS;
}
static inline void pm_genpd_poweroff_unused(void) {}
#endif
static inline int pm_genpd_add_device(struct generic_pm_domain *genpd,
@ -229,12 +169,6 @@ static inline int pm_genpd_add_device(struct generic_pm_domain *genpd,
return __pm_genpd_add_device(genpd, dev, NULL);
}
static inline int pm_genpd_name_add_device(const char *domain_name,
struct device *dev)
{
return __pm_genpd_name_add_device(domain_name, dev, NULL);
}
#ifdef CONFIG_PM_GENERIC_DOMAINS_SLEEP
extern void pm_genpd_syscore_poweroff(struct device *dev);
extern void pm_genpd_syscore_poweron(struct device *dev);

View file

@ -132,37 +132,37 @@ static inline struct srcu_notifier_head *dev_pm_opp_get_notifier(
#endif /* CONFIG_PM_OPP */
#if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)
int of_init_opp_table(struct device *dev);
void of_free_opp_table(struct device *dev);
int of_cpumask_init_opp_table(cpumask_var_t cpumask);
void of_cpumask_free_opp_table(cpumask_var_t cpumask);
int of_get_cpus_sharing_opps(struct device *cpu_dev, cpumask_var_t cpumask);
int set_cpus_sharing_opps(struct device *cpu_dev, cpumask_var_t cpumask);
int dev_pm_opp_of_add_table(struct device *dev);
void dev_pm_opp_of_remove_table(struct device *dev);
int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask);
void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask);
int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask);
int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask);
#else
static inline int of_init_opp_table(struct device *dev)
static inline int dev_pm_opp_of_add_table(struct device *dev)
{
return -EINVAL;
}
static inline void of_free_opp_table(struct device *dev)
static inline void dev_pm_opp_of_remove_table(struct device *dev)
{
}
static inline int of_cpumask_init_opp_table(cpumask_var_t cpumask)
static inline int dev_pm_opp_of_cpumask_add_table(cpumask_var_t cpumask)
{
return -ENOSYS;
}
static inline void of_cpumask_free_opp_table(cpumask_var_t cpumask)
static inline void dev_pm_opp_of_cpumask_remove_table(cpumask_var_t cpumask)
{
}
static inline int of_get_cpus_sharing_opps(struct device *cpu_dev, cpumask_var_t cpumask)
static inline int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask)
{
return -ENOSYS;
}
static inline int set_cpus_sharing_opps(struct device *cpu_dev, cpumask_var_t cpumask)
static inline int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, cpumask_var_t cpumask)
{
return -ENOSYS;
}

View file

@ -40,6 +40,8 @@ int device_property_read_string_array(struct device *dev, const char *propname,
const char **val, size_t nval);
int device_property_read_string(struct device *dev, const char *propname,
const char **val);
int device_property_match_string(struct device *dev,
const char *propname, const char *string);
bool fwnode_property_present(struct fwnode_handle *fwnode, const char *propname);
int fwnode_property_read_u8_array(struct fwnode_handle *fwnode,
@ -59,6 +61,8 @@ int fwnode_property_read_string_array(struct fwnode_handle *fwnode,
size_t nval);
int fwnode_property_read_string(struct fwnode_handle *fwnode,
const char *propname, const char **val);
int fwnode_property_match_string(struct fwnode_handle *fwnode,
const char *propname, const char *string);
struct fwnode_handle *device_get_next_child_node(struct device *dev,
struct fwnode_handle *child);

View file

@ -202,6 +202,36 @@ struct platform_freeze_ops {
extern void suspend_set_ops(const struct platform_suspend_ops *ops);
extern int suspend_valid_only_mem(suspend_state_t state);
extern unsigned int pm_suspend_global_flags;
#define PM_SUSPEND_FLAG_FW_SUSPEND (1 << 0)
#define PM_SUSPEND_FLAG_FW_RESUME (1 << 1)
static inline void pm_suspend_clear_flags(void)
{
pm_suspend_global_flags = 0;
}
static inline void pm_set_suspend_via_firmware(void)
{
pm_suspend_global_flags |= PM_SUSPEND_FLAG_FW_SUSPEND;
}
static inline void pm_set_resume_via_firmware(void)
{
pm_suspend_global_flags |= PM_SUSPEND_FLAG_FW_RESUME;
}
static inline bool pm_suspend_via_firmware(void)
{
return !!(pm_suspend_global_flags & PM_SUSPEND_FLAG_FW_SUSPEND);
}
static inline bool pm_resume_via_firmware(void)
{
return !!(pm_suspend_global_flags & PM_SUSPEND_FLAG_FW_RESUME);
}
/* Suspend-to-idle state machnine. */
enum freeze_state {
FREEZE_STATE_NONE, /* Not suspended/suspending. */
@ -241,6 +271,12 @@ extern int pm_suspend(suspend_state_t state);
#else /* !CONFIG_SUSPEND */
#define suspend_valid_only_mem NULL
static inline void pm_suspend_clear_flags(void) {}
static inline void pm_set_suspend_via_firmware(void) {}
static inline void pm_set_resume_via_firmware(void) {}
static inline bool pm_suspend_via_firmware(void) { return false; }
static inline bool pm_resume_via_firmware(void) { return false; }
static inline void suspend_set_ops(const struct platform_suspend_ops *ops) {}
static inline int pm_suspend(suspend_state_t state) { return -ENOSYS; }
static inline bool idle_should_freeze(void) { return false; }
@ -387,10 +423,12 @@ extern int unregister_pm_notifier(struct notifier_block *nb);
/* drivers/base/power/wakeup.c */
extern bool events_check_enabled;
extern unsigned int pm_wakeup_irq;
extern bool pm_wakeup_pending(void);
extern void pm_system_wakeup(void);
extern void pm_wakeup_clear(void);
extern void pm_system_irq_wakeup(unsigned int irq_number);
extern bool pm_get_wakeup_count(unsigned int *count, bool block);
extern bool pm_save_wakeup_count(unsigned int count);
extern void pm_wakep_autosleep_enabled(bool set);
@ -440,6 +478,7 @@ static inline int unregister_pm_notifier(struct notifier_block *nb)
static inline bool pm_wakeup_pending(void) { return false; }
static inline void pm_system_wakeup(void) {}
static inline void pm_wakeup_clear(void) {}
static inline void pm_system_irq_wakeup(unsigned int irq_number) {}
static inline void lock_system_sleep(void) {}
static inline void unlock_system_sleep(void) {}