ddk: update includes
git-svn-id: svn://kolibrios.org@6588 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge)
935
drivers/include/linux/acpi.h
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935
drivers/include/linux/acpi.h
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@@ -0,0 +1,935 @@
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/*
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* acpi.h - ACPI Interface
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*
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* Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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*/
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#ifndef _LINUX_ACPI_H
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#define _LINUX_ACPI_H
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#include <linux/errno.h>
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#include <linux/ioport.h> /* for struct resource */
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#include <linux/resource_ext.h>
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#include <linux/device.h>
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#include <linux/property.h>
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#ifndef _LINUX
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#define _LINUX
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#endif
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#include <acpi/acpi.h>
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#ifdef CONFIG_ACPI
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#include <linux/list.h>
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#include <linux/mod_devicetable.h>
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#include <linux/dynamic_debug.h>
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#include <acpi/acpi_bus.h>
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#include <acpi/acpi_drivers.h>
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#include <acpi/acpi_numa.h>
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#include <acpi/acpi_io.h>
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#include <asm/acpi.h>
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static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
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{
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return adev ? adev->handle : NULL;
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}
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#define ACPI_COMPANION(dev) to_acpi_device_node((dev)->fwnode)
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#define ACPI_COMPANION_SET(dev, adev) set_primary_fwnode(dev, (adev) ? \
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acpi_fwnode_handle(adev) : NULL)
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#define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
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/**
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* ACPI_DEVICE_CLASS - macro used to describe an ACPI device with
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* the PCI-defined class-code information
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*
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* @_cls : the class, subclass, prog-if triple for this device
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* @_msk : the class mask for this device
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*
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* This macro is used to create a struct acpi_device_id that matches a
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* specific PCI class. The .id and .driver_data fields will be left
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* initialized with the default value.
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*/
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#define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (_cls), .cls_msk = (_msk),
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//static inline bool has_acpi_companion(struct device *dev)
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//{
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// return is_acpi_device_node(dev->fwnode);
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//}
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//static inline void acpi_preset_companion(struct device *dev,
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// struct acpi_device *parent, u64 addr)
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//{
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// ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL));
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//}
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static inline const char *acpi_dev_name(struct acpi_device *adev)
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{
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return dev_name(&adev->dev);
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}
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enum acpi_irq_model_id {
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ACPI_IRQ_MODEL_PIC = 0,
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ACPI_IRQ_MODEL_IOAPIC,
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ACPI_IRQ_MODEL_IOSAPIC,
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ACPI_IRQ_MODEL_PLATFORM,
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ACPI_IRQ_MODEL_GIC,
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ACPI_IRQ_MODEL_COUNT
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};
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extern enum acpi_irq_model_id acpi_irq_model;
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enum acpi_interrupt_id {
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ACPI_INTERRUPT_PMI = 1,
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ACPI_INTERRUPT_INIT,
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ACPI_INTERRUPT_CPEI,
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ACPI_INTERRUPT_COUNT
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};
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#define ACPI_SPACE_MEM 0
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enum acpi_address_range_id {
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ACPI_ADDRESS_RANGE_MEMORY = 1,
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ACPI_ADDRESS_RANGE_RESERVED = 2,
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ACPI_ADDRESS_RANGE_ACPI = 3,
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ACPI_ADDRESS_RANGE_NVS = 4,
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ACPI_ADDRESS_RANGE_COUNT
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};
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/* Table Handlers */
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typedef int (*acpi_tbl_table_handler)(struct acpi_table_header *table);
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typedef int (*acpi_tbl_entry_handler)(struct acpi_subtable_header *header,
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const unsigned long end);
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#ifdef CONFIG_ACPI_INITRD_TABLE_OVERRIDE
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void acpi_initrd_override(void *data, size_t size);
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#else
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static inline void acpi_initrd_override(void *data, size_t size)
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{
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}
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#endif
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#define BAD_MADT_ENTRY(entry, end) ( \
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(!entry) || (unsigned long)entry + sizeof(*entry) > end || \
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((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
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struct acpi_subtable_proc {
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int id;
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acpi_tbl_entry_handler handler;
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int count;
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};
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char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
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void __acpi_unmap_table(char *map, unsigned long size);
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int early_acpi_boot_init(void);
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int acpi_boot_init (void);
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void acpi_boot_table_init (void);
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int acpi_mps_check (void);
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int acpi_numa_init (void);
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int acpi_table_init (void);
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int acpi_table_parse(char *id, acpi_tbl_table_handler handler);
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int __init acpi_parse_entries(char *id, unsigned long table_size,
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acpi_tbl_entry_handler handler,
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struct acpi_table_header *table_header,
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int entry_id, unsigned int max_entries);
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int __init acpi_table_parse_entries(char *id, unsigned long table_size,
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int entry_id,
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acpi_tbl_entry_handler handler,
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unsigned int max_entries);
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int __init acpi_table_parse_entries(char *id, unsigned long table_size,
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int entry_id,
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acpi_tbl_entry_handler handler,
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unsigned int max_entries);
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int __init acpi_table_parse_entries_array(char *id, unsigned long table_size,
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struct acpi_subtable_proc *proc, int proc_num,
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unsigned int max_entries);
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int acpi_table_parse_madt(enum acpi_madt_type id,
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acpi_tbl_entry_handler handler,
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unsigned int max_entries);
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int acpi_parse_mcfg (struct acpi_table_header *header);
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void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
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/* the following four functions are architecture-dependent */
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void acpi_numa_slit_init (struct acpi_table_slit *slit);
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void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
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void acpi_numa_x2apic_affinity_init(struct acpi_srat_x2apic_cpu_affinity *pa);
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int acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
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void acpi_numa_arch_fixup(void);
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#ifndef PHYS_CPUID_INVALID
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typedef u32 phys_cpuid_t;
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#define PHYS_CPUID_INVALID (phys_cpuid_t)(-1)
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#endif
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static inline bool invalid_logical_cpuid(u32 cpuid)
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{
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return (int)cpuid < 0;
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}
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static inline bool invalid_phys_cpuid(phys_cpuid_t phys_id)
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{
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return phys_id == PHYS_CPUID_INVALID;
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}
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#ifdef CONFIG_ACPI_HOTPLUG_CPU
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/* Arch dependent functions for cpu hotplug support */
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int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, int *pcpu);
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int acpi_unmap_cpu(int cpu);
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#endif /* CONFIG_ACPI_HOTPLUG_CPU */
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#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
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int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr);
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#endif
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int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
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int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
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int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base);
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void acpi_irq_stats_init(void);
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extern u32 acpi_irq_handled;
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extern u32 acpi_irq_not_handled;
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extern unsigned int acpi_sci_irq;
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#define INVALID_ACPI_IRQ ((unsigned)-1)
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static inline bool acpi_sci_irq_valid(void)
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{
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return acpi_sci_irq != INVALID_ACPI_IRQ;
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}
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extern int sbf_port;
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extern unsigned long acpi_realmode_flags;
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int acpi_register_gsi (struct device *dev, u32 gsi, int triggering, int polarity);
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int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
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int acpi_isa_irq_to_gsi (unsigned isa_irq, u32 *gsi);
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void acpi_set_irq_model(enum acpi_irq_model_id model,
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struct fwnode_handle *fwnode);
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#ifdef CONFIG_X86_IO_APIC
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extern int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity);
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#else
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#define acpi_get_override_irq(gsi, trigger, polarity) (-1)
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#endif
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/*
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* This function undoes the effect of one call to acpi_register_gsi().
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* If this matches the last registration, any IRQ resources for gsi
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* are freed.
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*/
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void acpi_unregister_gsi (u32 gsi);
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struct pci_dev;
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int acpi_pci_irq_enable (struct pci_dev *dev);
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void acpi_penalize_isa_irq(int irq, int active);
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bool acpi_isa_irq_available(int irq);
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void acpi_penalize_sci_irq(int irq, int trigger, int polarity);
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void acpi_pci_irq_disable (struct pci_dev *dev);
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extern int ec_read(u8 addr, u8 *val);
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extern int ec_write(u8 addr, u8 val);
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extern int ec_transaction(u8 command,
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const u8 *wdata, unsigned wdata_len,
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u8 *rdata, unsigned rdata_len);
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extern acpi_handle ec_get_handle(void);
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extern bool acpi_is_pnp_device(struct acpi_device *);
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#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
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typedef void (*wmi_notify_handler) (u32 value, void *context);
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extern acpi_status wmi_evaluate_method(const char *guid, u8 instance,
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u32 method_id,
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const struct acpi_buffer *in,
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struct acpi_buffer *out);
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extern acpi_status wmi_query_block(const char *guid, u8 instance,
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struct acpi_buffer *out);
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extern acpi_status wmi_set_block(const char *guid, u8 instance,
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const struct acpi_buffer *in);
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extern acpi_status wmi_install_notify_handler(const char *guid,
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wmi_notify_handler handler, void *data);
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extern acpi_status wmi_remove_notify_handler(const char *guid);
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extern acpi_status wmi_get_event_data(u32 event, struct acpi_buffer *out);
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extern bool wmi_has_guid(const char *guid);
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#endif /* CONFIG_ACPI_WMI */
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#define ACPI_VIDEO_OUTPUT_SWITCHING 0x0001
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#define ACPI_VIDEO_DEVICE_POSTING 0x0002
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#define ACPI_VIDEO_ROM_AVAILABLE 0x0004
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#define ACPI_VIDEO_BACKLIGHT 0x0008
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#define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR 0x0010
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#define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO 0x0020
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#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR 0x0040
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#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO 0x0080
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#define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR 0x0100
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#define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO 0x0200
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#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR 0x0400
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#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO 0x0800
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extern char acpi_video_backlight_string[];
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extern long acpi_is_video_device(acpi_handle handle);
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extern int acpi_blacklisted(void);
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extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
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extern void acpi_osi_setup(char *str);
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extern bool acpi_osi_is_win8(void);
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#ifdef CONFIG_ACPI_NUMA
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int acpi_map_pxm_to_online_node(int pxm);
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int acpi_get_node(acpi_handle handle);
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#else
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static inline int acpi_map_pxm_to_online_node(int pxm)
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{
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return 0;
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}
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static inline int acpi_get_node(acpi_handle handle)
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{
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return 0;
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}
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#endif
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extern int acpi_paddr_to_node(u64 start_addr, u64 size);
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extern int pnpacpi_disabled;
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#define PXM_INVAL (-1)
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bool acpi_dev_resource_memory(struct acpi_resource *ares, struct resource *res);
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bool acpi_dev_resource_io(struct acpi_resource *ares, struct resource *res);
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bool acpi_dev_resource_address_space(struct acpi_resource *ares,
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struct resource_win *win);
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bool acpi_dev_resource_ext_address_space(struct acpi_resource *ares,
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struct resource_win *win);
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unsigned long acpi_dev_irq_flags(u8 triggering, u8 polarity, u8 shareable);
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bool acpi_dev_resource_interrupt(struct acpi_resource *ares, int index,
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struct resource *res);
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void acpi_dev_free_resource_list(struct list_head *list);
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int acpi_dev_get_resources(struct acpi_device *adev, struct list_head *list,
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int (*preproc)(struct acpi_resource *, void *),
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void *preproc_data);
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int acpi_dev_filter_resource_type(struct acpi_resource *ares,
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unsigned long types);
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static inline int acpi_dev_filter_resource_type_cb(struct acpi_resource *ares,
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void *arg)
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{
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return acpi_dev_filter_resource_type(ares, (unsigned long)arg);
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}
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int acpi_check_resource_conflict(const struct resource *res);
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int acpi_check_region(resource_size_t start, resource_size_t n,
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const char *name);
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int acpi_resources_are_enforced(void);
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#ifdef CONFIG_HIBERNATION
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void __init acpi_no_s4_hw_signature(void);
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#endif
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#ifdef CONFIG_PM_SLEEP
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void __init acpi_old_suspend_ordering(void);
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void __init acpi_nvs_nosave(void);
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void __init acpi_nvs_nosave_s3(void);
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#endif /* CONFIG_PM_SLEEP */
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struct acpi_osc_context {
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char *uuid_str; /* UUID string */
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int rev;
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struct acpi_buffer cap; /* list of DWORD capabilities */
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struct acpi_buffer ret; /* free by caller if success */
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};
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acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
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acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
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/* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
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#define OSC_QUERY_DWORD 0 /* DWORD 1 */
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#define OSC_SUPPORT_DWORD 1 /* DWORD 2 */
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#define OSC_CONTROL_DWORD 2 /* DWORD 3 */
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/* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
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#define OSC_QUERY_ENABLE 0x00000001 /* input */
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#define OSC_REQUEST_ERROR 0x00000002 /* return */
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#define OSC_INVALID_UUID_ERROR 0x00000004 /* return */
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#define OSC_INVALID_REVISION_ERROR 0x00000008 /* return */
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#define OSC_CAPABILITIES_MASK_ERROR 0x00000010 /* return */
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/* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
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#define OSC_SB_PAD_SUPPORT 0x00000001
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#define OSC_SB_PPC_OST_SUPPORT 0x00000002
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#define OSC_SB_PR3_SUPPORT 0x00000004
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#define OSC_SB_HOTPLUG_OST_SUPPORT 0x00000008
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#define OSC_SB_APEI_SUPPORT 0x00000010
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#define OSC_SB_CPC_SUPPORT 0x00000020
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extern bool osc_sb_apei_support_acked;
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/* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
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#define OSC_PCI_EXT_CONFIG_SUPPORT 0x00000001
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#define OSC_PCI_ASPM_SUPPORT 0x00000002
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#define OSC_PCI_CLOCK_PM_SUPPORT 0x00000004
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#define OSC_PCI_SEGMENT_GROUPS_SUPPORT 0x00000008
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#define OSC_PCI_MSI_SUPPORT 0x00000010
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#define OSC_PCI_SUPPORT_MASKS 0x0000001f
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/* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
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#define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL 0x00000001
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#define OSC_PCI_SHPC_NATIVE_HP_CONTROL 0x00000002
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#define OSC_PCI_EXPRESS_PME_CONTROL 0x00000004
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#define OSC_PCI_EXPRESS_AER_CONTROL 0x00000008
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#define OSC_PCI_EXPRESS_CAPABILITY_CONTROL 0x00000010
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#define OSC_PCI_CONTROL_MASKS 0x0000001f
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#define ACPI_GSB_ACCESS_ATTRIB_QUICK 0x00000002
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#define ACPI_GSB_ACCESS_ATTRIB_SEND_RCV 0x00000004
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#define ACPI_GSB_ACCESS_ATTRIB_BYTE 0x00000006
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#define ACPI_GSB_ACCESS_ATTRIB_WORD 0x00000008
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#define ACPI_GSB_ACCESS_ATTRIB_BLOCK 0x0000000A
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#define ACPI_GSB_ACCESS_ATTRIB_MULTIBYTE 0x0000000B
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#define ACPI_GSB_ACCESS_ATTRIB_WORD_CALL 0x0000000C
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#define ACPI_GSB_ACCESS_ATTRIB_BLOCK_CALL 0x0000000D
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#define ACPI_GSB_ACCESS_ATTRIB_RAW_BYTES 0x0000000E
|
||||
#define ACPI_GSB_ACCESS_ATTRIB_RAW_PROCESS 0x0000000F
|
||||
|
||||
extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
|
||||
u32 *mask, u32 req);
|
||||
|
||||
/* Enable _OST when all relevant hotplug operations are enabled */
|
||||
#if defined(CONFIG_ACPI_HOTPLUG_CPU) && \
|
||||
defined(CONFIG_ACPI_HOTPLUG_MEMORY) && \
|
||||
defined(CONFIG_ACPI_CONTAINER)
|
||||
#define ACPI_HOTPLUG_OST
|
||||
#endif
|
||||
|
||||
/* _OST Source Event Code (OSPM Action) */
|
||||
#define ACPI_OST_EC_OSPM_SHUTDOWN 0x100
|
||||
#define ACPI_OST_EC_OSPM_EJECT 0x103
|
||||
#define ACPI_OST_EC_OSPM_INSERTION 0x200
|
||||
|
||||
/* _OST General Processing Status Code */
|
||||
#define ACPI_OST_SC_SUCCESS 0x0
|
||||
#define ACPI_OST_SC_NON_SPECIFIC_FAILURE 0x1
|
||||
#define ACPI_OST_SC_UNRECOGNIZED_NOTIFY 0x2
|
||||
|
||||
/* _OST OS Shutdown Processing (0x100) Status Code */
|
||||
#define ACPI_OST_SC_OS_SHUTDOWN_DENIED 0x80
|
||||
#define ACPI_OST_SC_OS_SHUTDOWN_IN_PROGRESS 0x81
|
||||
#define ACPI_OST_SC_OS_SHUTDOWN_COMPLETED 0x82
|
||||
#define ACPI_OST_SC_OS_SHUTDOWN_NOT_SUPPORTED 0x83
|
||||
|
||||
/* _OST Ejection Request (0x3, 0x103) Status Code */
|
||||
#define ACPI_OST_SC_EJECT_NOT_SUPPORTED 0x80
|
||||
#define ACPI_OST_SC_DEVICE_IN_USE 0x81
|
||||
#define ACPI_OST_SC_DEVICE_BUSY 0x82
|
||||
#define ACPI_OST_SC_EJECT_DEPENDENCY_BUSY 0x83
|
||||
#define ACPI_OST_SC_EJECT_IN_PROGRESS 0x84
|
||||
|
||||
/* _OST Insertion Request (0x200) Status Code */
|
||||
#define ACPI_OST_SC_INSERT_IN_PROGRESS 0x80
|
||||
#define ACPI_OST_SC_DRIVER_LOAD_FAILURE 0x81
|
||||
#define ACPI_OST_SC_INSERT_NOT_SUPPORTED 0x82
|
||||
|
||||
extern void acpi_early_init(void);
|
||||
extern void acpi_subsystem_init(void);
|
||||
|
||||
extern int acpi_nvs_register(__u64 start, __u64 size);
|
||||
|
||||
extern int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
|
||||
void *data);
|
||||
|
||||
const struct acpi_device_id *acpi_match_device(const struct acpi_device_id *ids,
|
||||
const struct device *dev);
|
||||
|
||||
extern bool acpi_driver_match_device(struct device *dev,
|
||||
const struct device_driver *drv);
|
||||
int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *);
|
||||
int acpi_device_modalias(struct device *, char *, int);
|
||||
void acpi_walk_dep_device_list(acpi_handle handle);
|
||||
|
||||
struct platform_device *acpi_create_platform_device(struct acpi_device *);
|
||||
#define ACPI_PTR(_ptr) (_ptr)
|
||||
|
||||
#else /* !CONFIG_ACPI */
|
||||
|
||||
#define acpi_disabled 1
|
||||
|
||||
#define ACPI_COMPANION(dev) (NULL)
|
||||
#define ACPI_COMPANION_SET(dev, adev) do { } while (0)
|
||||
#define ACPI_HANDLE(dev) (NULL)
|
||||
#define ACPI_DEVICE_CLASS(_cls, _msk) .cls = (0), .cls_msk = (0),
|
||||
|
||||
struct fwnode_handle;
|
||||
|
||||
static inline bool is_acpi_node(struct fwnode_handle *fwnode)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
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;
|
||||
}
|
||||
|
||||
static inline struct fwnode_handle *acpi_fwnode_handle(struct acpi_device *adev)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static inline bool has_acpi_companion(struct device *dev)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
static inline void acpi_preset_companion(struct device *dev,
|
||||
struct acpi_device *parent, u64 addr)
|
||||
{
|
||||
}
|
||||
|
||||
static inline const char *acpi_dev_name(struct acpi_device *adev)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static inline void acpi_early_init(void) { }
|
||||
static inline void acpi_subsystem_init(void) { }
|
||||
|
||||
static inline int early_acpi_boot_init(void)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
static inline int acpi_boot_init(void)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline void acpi_boot_table_init(void)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
static inline int acpi_mps_check(void)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline int acpi_check_resource_conflict(struct resource *res)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline int acpi_check_region(resource_size_t start, resource_size_t n,
|
||||
const char *name)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
struct acpi_table_header;
|
||||
static inline int acpi_table_parse(char *id,
|
||||
int (*handler)(struct acpi_table_header *))
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static inline int acpi_nvs_register(__u64 start, __u64 size)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline int acpi_nvs_for_each_region(int (*func)(__u64, __u64, void *),
|
||||
void *data)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
struct acpi_device_id;
|
||||
|
||||
static inline const struct acpi_device_id *acpi_match_device(
|
||||
const struct acpi_device_id *ids, const struct device *dev)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static inline bool acpi_driver_match_device(struct device *dev,
|
||||
const struct device_driver *drv)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
static inline int acpi_device_uevent_modalias(struct device *dev,
|
||||
struct kobj_uevent_env *env)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static inline int acpi_device_modalias(struct device *dev,
|
||||
char *buf, int size)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static inline bool acpi_dma_supported(struct acpi_device *adev)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
|
||||
static inline enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev)
|
||||
{
|
||||
return DEV_DMA_NOT_SUPPORTED;
|
||||
}
|
||||
|
||||
#define ACPI_PTR(_ptr) (NULL)
|
||||
|
||||
#endif /* !CONFIG_ACPI */
|
||||
|
||||
#ifdef CONFIG_ACPI
|
||||
void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
|
||||
u32 pm1a_ctrl, u32 pm1b_ctrl));
|
||||
|
||||
acpi_status acpi_os_prepare_sleep(u8 sleep_state,
|
||||
u32 pm1a_control, u32 pm1b_control);
|
||||
|
||||
void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
|
||||
u32 val_a, u32 val_b));
|
||||
|
||||
acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
|
||||
u32 val_a, u32 val_b);
|
||||
|
||||
#ifdef CONFIG_X86
|
||||
void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
|
||||
#else
|
||||
static inline void arch_reserve_mem_area(acpi_physical_address addr,
|
||||
size_t size)
|
||||
{
|
||||
}
|
||||
#endif /* CONFIG_X86 */
|
||||
#else
|
||||
#define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_ACPI) && defined(CONFIG_PM)
|
||||
int acpi_dev_runtime_suspend(struct device *dev);
|
||||
int acpi_dev_runtime_resume(struct device *dev);
|
||||
int acpi_subsys_runtime_suspend(struct device *dev);
|
||||
int acpi_subsys_runtime_resume(struct device *dev);
|
||||
struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
|
||||
int acpi_dev_pm_attach(struct device *dev, bool power_on);
|
||||
#else
|
||||
static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
|
||||
static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
|
||||
static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
|
||||
static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
|
||||
static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
|
||||
{
|
||||
return -ENODEV;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
|
||||
int acpi_dev_suspend_late(struct device *dev);
|
||||
int acpi_dev_resume_early(struct device *dev);
|
||||
int acpi_subsys_prepare(struct device *dev);
|
||||
void acpi_subsys_complete(struct device *dev);
|
||||
int acpi_subsys_suspend_late(struct device *dev);
|
||||
int acpi_subsys_resume_early(struct device *dev);
|
||||
int acpi_subsys_suspend(struct device *dev);
|
||||
int acpi_subsys_freeze(struct device *dev);
|
||||
#else
|
||||
static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
|
||||
static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
|
||||
static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
|
||||
static inline void acpi_subsys_complete(struct device *dev) {}
|
||||
static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
|
||||
static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
|
||||
static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
|
||||
static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_ACPI
|
||||
__printf(3, 4)
|
||||
void acpi_handle_printk(const char *level, acpi_handle handle,
|
||||
const char *fmt, ...);
|
||||
#else /* !CONFIG_ACPI */
|
||||
static inline __printf(3, 4) void
|
||||
acpi_handle_printk(const char *level, void *handle, const char *fmt, ...) {}
|
||||
#endif /* !CONFIG_ACPI */
|
||||
|
||||
#if defined(CONFIG_ACPI) && defined(CONFIG_DYNAMIC_DEBUG)
|
||||
__printf(3, 4)
|
||||
void __acpi_handle_debug(struct _ddebug *descriptor, acpi_handle handle, const char *fmt, ...);
|
||||
#else
|
||||
#define __acpi_handle_debug(descriptor, handle, fmt, ...) \
|
||||
acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* acpi_handle_<level>: Print message with ACPI prefix and object path
|
||||
*
|
||||
* These interfaces acquire the global namespace mutex to obtain an object
|
||||
* path. In interrupt context, it shows the object path as <n/a>.
|
||||
*/
|
||||
#define acpi_handle_emerg(handle, fmt, ...) \
|
||||
acpi_handle_printk(KERN_EMERG, handle, fmt, ##__VA_ARGS__)
|
||||
#define acpi_handle_alert(handle, fmt, ...) \
|
||||
acpi_handle_printk(KERN_ALERT, handle, fmt, ##__VA_ARGS__)
|
||||
#define acpi_handle_crit(handle, fmt, ...) \
|
||||
acpi_handle_printk(KERN_CRIT, handle, fmt, ##__VA_ARGS__)
|
||||
#define acpi_handle_err(handle, fmt, ...) \
|
||||
acpi_handle_printk(KERN_ERR, handle, fmt, ##__VA_ARGS__)
|
||||
#define acpi_handle_warn(handle, fmt, ...) \
|
||||
acpi_handle_printk(KERN_WARNING, handle, fmt, ##__VA_ARGS__)
|
||||
#define acpi_handle_notice(handle, fmt, ...) \
|
||||
acpi_handle_printk(KERN_NOTICE, handle, fmt, ##__VA_ARGS__)
|
||||
#define acpi_handle_info(handle, fmt, ...) \
|
||||
acpi_handle_printk(KERN_INFO, handle, fmt, ##__VA_ARGS__)
|
||||
|
||||
#if defined(DEBUG)
|
||||
#define acpi_handle_debug(handle, fmt, ...) \
|
||||
acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__)
|
||||
#else
|
||||
#if defined(CONFIG_DYNAMIC_DEBUG)
|
||||
#define acpi_handle_debug(handle, fmt, ...) \
|
||||
do { \
|
||||
DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
|
||||
if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
|
||||
__acpi_handle_debug(&descriptor, handle, pr_fmt(fmt), \
|
||||
##__VA_ARGS__); \
|
||||
} while (0)
|
||||
#else
|
||||
#define acpi_handle_debug(handle, fmt, ...) \
|
||||
({ \
|
||||
if (0) \
|
||||
acpi_handle_printk(KERN_DEBUG, handle, fmt, ##__VA_ARGS__); \
|
||||
0; \
|
||||
})
|
||||
#endif
|
||||
#endif
|
||||
|
||||
struct acpi_gpio_params {
|
||||
unsigned int crs_entry_index;
|
||||
unsigned int line_index;
|
||||
bool active_low;
|
||||
};
|
||||
|
||||
struct acpi_gpio_mapping {
|
||||
const char *name;
|
||||
const struct acpi_gpio_params *data;
|
||||
unsigned int size;
|
||||
};
|
||||
|
||||
#if defined(CONFIG_ACPI) && defined(CONFIG_GPIOLIB)
|
||||
int acpi_dev_add_driver_gpios(struct acpi_device *adev,
|
||||
const struct acpi_gpio_mapping *gpios);
|
||||
|
||||
static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev)
|
||||
{
|
||||
if (adev)
|
||||
adev->driver_gpios = NULL;
|
||||
}
|
||||
|
||||
int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index);
|
||||
#else
|
||||
static inline int acpi_dev_add_driver_gpios(struct acpi_device *adev,
|
||||
const struct acpi_gpio_mapping *gpios)
|
||||
{
|
||||
return -ENXIO;
|
||||
}
|
||||
static inline void acpi_dev_remove_driver_gpios(struct acpi_device *adev) {}
|
||||
|
||||
static inline int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
|
||||
{
|
||||
return -ENXIO;
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Device properties */
|
||||
|
||||
#define MAX_ACPI_REFERENCE_ARGS 8
|
||||
struct acpi_reference_args {
|
||||
struct acpi_device *adev;
|
||||
size_t nargs;
|
||||
u64 args[MAX_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_node_get_property_reference(struct fwnode_handle *fwnode,
|
||||
const char *name, size_t index,
|
||||
struct acpi_reference_args *args);
|
||||
|
||||
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 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,
|
||||
const union acpi_object **obj)
|
||||
{
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
static inline int acpi_node_get_property_reference(struct fwnode_handle *fwnode,
|
||||
const char *name, size_t index,
|
||||
struct acpi_reference_args *args)
|
||||
{
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
static inline int acpi_node_prop_get(struct fwnode_handle *fwnode,
|
||||
const char *propname,
|
||||
void **valptr)
|
||||
{
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
static inline int acpi_dev_prop_get(struct acpi_device *adev,
|
||||
const char *propname,
|
||||
void **valptr)
|
||||
{
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
static inline int acpi_dev_prop_read_single(struct acpi_device *adev,
|
||||
const char *propname,
|
||||
enum dev_prop_type proptype,
|
||||
void *val)
|
||||
{
|
||||
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,
|
||||
void *val, size_t nval)
|
||||
{
|
||||
return -ENXIO;
|
||||
}
|
||||
|
||||
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, valid, 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*/
|
||||
@@ -3,6 +3,8 @@
|
||||
|
||||
#include <linux/compiler.h>
|
||||
|
||||
int printf(const char *fmt, ...);
|
||||
|
||||
#define __WARN() printf("\nWARNING: at %s:%d\n", __FILE__, __LINE__)
|
||||
//#define __WARN_printf(arg...) printf("\nWARNING: at %s:%d\n", __FILE__, __LINE__)
|
||||
#define __WARN_printf(arg...) do { printf(arg); __WARN(); } while (0)
|
||||
|
||||
257
drivers/include/linux/clocksource.h
Normal file
257
drivers/include/linux/clocksource.h
Normal file
@@ -0,0 +1,257 @@
|
||||
/* linux/include/linux/clocksource.h
|
||||
*
|
||||
* This file contains the structure definitions for clocksources.
|
||||
*
|
||||
* If you are not a clocksource, or timekeeping code, you should
|
||||
* not be including this file!
|
||||
*/
|
||||
#ifndef _LINUX_CLOCKSOURCE_H
|
||||
#define _LINUX_CLOCKSOURCE_H
|
||||
|
||||
#include <linux/types.h>
|
||||
#include <linux/timex.h>
|
||||
#include <linux/time.h>
|
||||
#include <linux/list.h>
|
||||
#include <linux/cache.h>
|
||||
#include <linux/init.h>
|
||||
#include <asm/div64.h>
|
||||
#include <asm/io.h>
|
||||
|
||||
struct clocksource;
|
||||
struct module;
|
||||
|
||||
#ifdef CONFIG_ARCH_CLOCKSOURCE_DATA
|
||||
#include <asm/clocksource.h>
|
||||
#endif
|
||||
|
||||
/**
|
||||
* struct clocksource - hardware abstraction for a free running counter
|
||||
* Provides mostly state-free accessors to the underlying hardware.
|
||||
* This is the structure used for system time.
|
||||
*
|
||||
* @name: ptr to clocksource name
|
||||
* @list: list head for registration
|
||||
* @rating: rating value for selection (higher is better)
|
||||
* To avoid rating inflation the following
|
||||
* list should give you a guide as to how
|
||||
* to assign your clocksource a rating
|
||||
* 1-99: Unfit for real use
|
||||
* Only available for bootup and testing purposes.
|
||||
* 100-199: Base level usability.
|
||||
* Functional for real use, but not desired.
|
||||
* 200-299: Good.
|
||||
* A correct and usable clocksource.
|
||||
* 300-399: Desired.
|
||||
* A reasonably fast and accurate clocksource.
|
||||
* 400-499: Perfect
|
||||
* The ideal clocksource. A must-use where
|
||||
* available.
|
||||
* @read: returns a cycle value, passes clocksource as argument
|
||||
* @enable: optional function to enable the clocksource
|
||||
* @disable: optional function to disable the clocksource
|
||||
* @mask: bitmask for two's complement
|
||||
* subtraction of non 64 bit counters
|
||||
* @mult: cycle to nanosecond multiplier
|
||||
* @shift: cycle to nanosecond divisor (power of two)
|
||||
* @max_idle_ns: max idle time permitted by the clocksource (nsecs)
|
||||
* @maxadj: maximum adjustment value to mult (~11%)
|
||||
* @max_cycles: maximum safe cycle value which won't overflow on multiplication
|
||||
* @flags: flags describing special properties
|
||||
* @archdata: arch-specific data
|
||||
* @suspend: suspend function for the clocksource, if necessary
|
||||
* @resume: resume function for the clocksource, if necessary
|
||||
* @owner: module reference, must be set by clocksource in modules
|
||||
*/
|
||||
struct clocksource {
|
||||
/*
|
||||
* Hotpath data, fits in a single cache line when the
|
||||
* clocksource itself is cacheline aligned.
|
||||
*/
|
||||
cycle_t (*read)(struct clocksource *cs);
|
||||
cycle_t mask;
|
||||
u32 mult;
|
||||
u32 shift;
|
||||
u64 max_idle_ns;
|
||||
u32 maxadj;
|
||||
#ifdef CONFIG_ARCH_CLOCKSOURCE_DATA
|
||||
struct arch_clocksource_data archdata;
|
||||
#endif
|
||||
u64 max_cycles;
|
||||
const char *name;
|
||||
struct list_head list;
|
||||
int rating;
|
||||
int (*enable)(struct clocksource *cs);
|
||||
void (*disable)(struct clocksource *cs);
|
||||
unsigned long flags;
|
||||
void (*suspend)(struct clocksource *cs);
|
||||
void (*resume)(struct clocksource *cs);
|
||||
|
||||
/* private: */
|
||||
#ifdef CONFIG_CLOCKSOURCE_WATCHDOG
|
||||
/* Watchdog related data, used by the framework */
|
||||
struct list_head wd_list;
|
||||
cycle_t cs_last;
|
||||
cycle_t wd_last;
|
||||
#endif
|
||||
struct module *owner;
|
||||
} ____cacheline_aligned;
|
||||
|
||||
/*
|
||||
* Clock source flags bits::
|
||||
*/
|
||||
#define CLOCK_SOURCE_IS_CONTINUOUS 0x01
|
||||
#define CLOCK_SOURCE_MUST_VERIFY 0x02
|
||||
|
||||
#define CLOCK_SOURCE_WATCHDOG 0x10
|
||||
#define CLOCK_SOURCE_VALID_FOR_HRES 0x20
|
||||
#define CLOCK_SOURCE_UNSTABLE 0x40
|
||||
#define CLOCK_SOURCE_SUSPEND_NONSTOP 0x80
|
||||
#define CLOCK_SOURCE_RESELECT 0x100
|
||||
|
||||
/* simplify initialization of mask field */
|
||||
#define CLOCKSOURCE_MASK(bits) (cycle_t)((bits) < 64 ? ((1ULL<<(bits))-1) : -1)
|
||||
|
||||
/**
|
||||
* clocksource_khz2mult - calculates mult from khz and shift
|
||||
* @khz: Clocksource frequency in KHz
|
||||
* @shift_constant: Clocksource shift factor
|
||||
*
|
||||
* Helper functions that converts a khz counter frequency to a timsource
|
||||
* multiplier, given the clocksource shift value
|
||||
*/
|
||||
static inline u32 clocksource_khz2mult(u32 khz, u32 shift_constant)
|
||||
{
|
||||
/* khz = cyc/(Million ns)
|
||||
* mult/2^shift = ns/cyc
|
||||
* mult = ns/cyc * 2^shift
|
||||
* mult = 1Million/khz * 2^shift
|
||||
* mult = 1000000 * 2^shift / khz
|
||||
* mult = (1000000<<shift) / khz
|
||||
*/
|
||||
u64 tmp = ((u64)1000000) << shift_constant;
|
||||
|
||||
tmp += khz/2; /* round for do_div */
|
||||
do_div(tmp, khz);
|
||||
|
||||
return (u32)tmp;
|
||||
}
|
||||
|
||||
/**
|
||||
* clocksource_hz2mult - calculates mult from hz and shift
|
||||
* @hz: Clocksource frequency in Hz
|
||||
* @shift_constant: Clocksource shift factor
|
||||
*
|
||||
* Helper functions that converts a hz counter
|
||||
* frequency to a timsource multiplier, given the
|
||||
* clocksource shift value
|
||||
*/
|
||||
static inline u32 clocksource_hz2mult(u32 hz, u32 shift_constant)
|
||||
{
|
||||
/* hz = cyc/(Billion ns)
|
||||
* mult/2^shift = ns/cyc
|
||||
* mult = ns/cyc * 2^shift
|
||||
* mult = 1Billion/hz * 2^shift
|
||||
* mult = 1000000000 * 2^shift / hz
|
||||
* mult = (1000000000<<shift) / hz
|
||||
*/
|
||||
u64 tmp = ((u64)1000000000) << shift_constant;
|
||||
|
||||
tmp += hz/2; /* round for do_div */
|
||||
do_div(tmp, hz);
|
||||
|
||||
return (u32)tmp;
|
||||
}
|
||||
|
||||
/**
|
||||
* clocksource_cyc2ns - converts clocksource cycles to nanoseconds
|
||||
* @cycles: cycles
|
||||
* @mult: cycle to nanosecond multiplier
|
||||
* @shift: cycle to nanosecond divisor (power of two)
|
||||
*
|
||||
* Converts cycles to nanoseconds, using the given mult and shift.
|
||||
*
|
||||
* XXX - This could use some mult_lxl_ll() asm optimization
|
||||
*/
|
||||
static inline s64 clocksource_cyc2ns(cycle_t cycles, u32 mult, u32 shift)
|
||||
{
|
||||
return ((u64) cycles * mult) >> shift;
|
||||
}
|
||||
|
||||
|
||||
extern int clocksource_unregister(struct clocksource*);
|
||||
extern void clocksource_touch_watchdog(void);
|
||||
extern void clocksource_change_rating(struct clocksource *cs, int rating);
|
||||
extern void clocksource_suspend(void);
|
||||
extern void clocksource_resume(void);
|
||||
extern struct clocksource * __init clocksource_default_clock(void);
|
||||
extern void clocksource_mark_unstable(struct clocksource *cs);
|
||||
|
||||
extern u64
|
||||
clocks_calc_max_nsecs(u32 mult, u32 shift, u32 maxadj, u64 mask, u64 *max_cycles);
|
||||
extern void
|
||||
clocks_calc_mult_shift(u32 *mult, u32 *shift, u32 from, u32 to, u32 minsec);
|
||||
|
||||
/*
|
||||
* Don't call __clocksource_register_scale directly, use
|
||||
* clocksource_register_hz/khz
|
||||
*/
|
||||
extern int
|
||||
__clocksource_register_scale(struct clocksource *cs, u32 scale, u32 freq);
|
||||
extern void
|
||||
__clocksource_update_freq_scale(struct clocksource *cs, u32 scale, u32 freq);
|
||||
|
||||
/*
|
||||
* Don't call this unless you are a default clocksource
|
||||
* (AKA: jiffies) and absolutely have to.
|
||||
*/
|
||||
static inline int __clocksource_register(struct clocksource *cs)
|
||||
{
|
||||
return __clocksource_register_scale(cs, 1, 0);
|
||||
}
|
||||
|
||||
static inline int clocksource_register_hz(struct clocksource *cs, u32 hz)
|
||||
{
|
||||
return __clocksource_register_scale(cs, 1, hz);
|
||||
}
|
||||
|
||||
static inline int clocksource_register_khz(struct clocksource *cs, u32 khz)
|
||||
{
|
||||
return __clocksource_register_scale(cs, 1000, khz);
|
||||
}
|
||||
|
||||
static inline void __clocksource_update_freq_hz(struct clocksource *cs, u32 hz)
|
||||
{
|
||||
__clocksource_update_freq_scale(cs, 1, hz);
|
||||
}
|
||||
|
||||
static inline void __clocksource_update_freq_khz(struct clocksource *cs, u32 khz)
|
||||
{
|
||||
__clocksource_update_freq_scale(cs, 1000, khz);
|
||||
}
|
||||
|
||||
|
||||
extern int timekeeping_notify(struct clocksource *clock);
|
||||
|
||||
extern cycle_t clocksource_mmio_readl_up(struct clocksource *);
|
||||
extern cycle_t clocksource_mmio_readl_down(struct clocksource *);
|
||||
extern cycle_t clocksource_mmio_readw_up(struct clocksource *);
|
||||
extern cycle_t clocksource_mmio_readw_down(struct clocksource *);
|
||||
|
||||
extern int clocksource_mmio_init(void __iomem *, const char *,
|
||||
unsigned long, int, unsigned, cycle_t (*)(struct clocksource *));
|
||||
|
||||
extern int clocksource_i8253_init(void);
|
||||
|
||||
#define CLOCKSOURCE_OF_DECLARE(name, compat, fn) \
|
||||
OF_DECLARE_1(clksrc, name, compat, fn)
|
||||
|
||||
#ifdef CONFIG_CLKSRC_PROBE
|
||||
extern void clocksource_probe(void);
|
||||
#else
|
||||
static inline void clocksource_probe(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 */
|
||||
@@ -199,7 +199,7 @@
|
||||
#define unreachable() __builtin_unreachable()
|
||||
|
||||
/* Mark a function definition as prohibited from being cloned. */
|
||||
#define __noclone __attribute__((__noclone__))
|
||||
#define __noclone __attribute__((__noclone__, __optimize__("no-tracer")))
|
||||
|
||||
#endif /* GCC_VERSION >= 40500 */
|
||||
|
||||
|
||||
@@ -5,6 +5,7 @@
|
||||
#include <linux/string.h>
|
||||
#include <linux/device.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/dma-attrs.h>
|
||||
#include <linux/dma-direction.h>
|
||||
#include <linux/scatterlist.h>
|
||||
|
||||
@@ -26,6 +27,12 @@ static inline int is_device_dma_capable(struct device *dev)
|
||||
{
|
||||
return dev->dma_mask != NULL && *dev->dma_mask != DMA_MASK_NONE;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_HAS_DMA
|
||||
#include <asm/dma-mapping.h>
|
||||
#else
|
||||
#include <asm-generic/dma-mapping-broken.h>
|
||||
#endif
|
||||
#ifndef dma_max_pfn
|
||||
static inline unsigned long dma_max_pfn(struct device *dev)
|
||||
{
|
||||
|
||||
137
drivers/include/linux/dynamic_debug.h
Normal file
137
drivers/include/linux/dynamic_debug.h
Normal file
@@ -0,0 +1,137 @@
|
||||
#ifndef _DYNAMIC_DEBUG_H
|
||||
#define _DYNAMIC_DEBUG_H
|
||||
|
||||
/*
|
||||
* An instance of this structure is created in a special
|
||||
* ELF section at every dynamic debug callsite. At runtime,
|
||||
* the special section is treated as an array of these.
|
||||
*/
|
||||
struct _ddebug {
|
||||
/*
|
||||
* These fields are used to drive the user interface
|
||||
* for selecting and displaying debug callsites.
|
||||
*/
|
||||
const char *modname;
|
||||
const char *function;
|
||||
const char *filename;
|
||||
const char *format;
|
||||
unsigned int lineno:18;
|
||||
/*
|
||||
* The flags field controls the behaviour at the callsite.
|
||||
* The bits here are changed dynamically when the user
|
||||
* writes commands to <debugfs>/dynamic_debug/control
|
||||
*/
|
||||
#define _DPRINTK_FLAGS_NONE 0
|
||||
#define _DPRINTK_FLAGS_PRINT (1<<0) /* printk() a message using the format */
|
||||
#define _DPRINTK_FLAGS_INCL_MODNAME (1<<1)
|
||||
#define _DPRINTK_FLAGS_INCL_FUNCNAME (1<<2)
|
||||
#define _DPRINTK_FLAGS_INCL_LINENO (1<<3)
|
||||
#define _DPRINTK_FLAGS_INCL_TID (1<<4)
|
||||
#if defined DEBUG
|
||||
#define _DPRINTK_FLAGS_DEFAULT _DPRINTK_FLAGS_PRINT
|
||||
#else
|
||||
#define _DPRINTK_FLAGS_DEFAULT 0
|
||||
#endif
|
||||
unsigned int flags:8;
|
||||
} __attribute__((aligned(8)));
|
||||
|
||||
|
||||
int ddebug_add_module(struct _ddebug *tab, unsigned int n,
|
||||
const char *modname);
|
||||
|
||||
#if defined(CONFIG_DYNAMIC_DEBUG)
|
||||
extern int ddebug_remove_module(const char *mod_name);
|
||||
extern __printf(2, 3)
|
||||
void __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...);
|
||||
|
||||
extern int ddebug_dyndbg_module_param_cb(char *param, char *val,
|
||||
const char *modname);
|
||||
|
||||
struct device;
|
||||
|
||||
extern __printf(3, 4)
|
||||
void __dynamic_dev_dbg(struct _ddebug *descriptor, const struct device *dev,
|
||||
const char *fmt, ...);
|
||||
|
||||
struct net_device;
|
||||
|
||||
extern __printf(3, 4)
|
||||
void __dynamic_netdev_dbg(struct _ddebug *descriptor,
|
||||
const struct net_device *dev,
|
||||
const char *fmt, ...);
|
||||
|
||||
#define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt) \
|
||||
static struct _ddebug __aligned(8) \
|
||||
__attribute__((section("__verbose"))) name = { \
|
||||
.modname = KBUILD_MODNAME, \
|
||||
.function = __func__, \
|
||||
.filename = __FILE__, \
|
||||
.format = (fmt), \
|
||||
.lineno = __LINE__, \
|
||||
.flags = _DPRINTK_FLAGS_DEFAULT, \
|
||||
}
|
||||
|
||||
#define dynamic_pr_debug(fmt, ...) \
|
||||
do { \
|
||||
DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
|
||||
if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
|
||||
__dynamic_pr_debug(&descriptor, pr_fmt(fmt), \
|
||||
##__VA_ARGS__); \
|
||||
} while (0)
|
||||
|
||||
#define dynamic_dev_dbg(dev, fmt, ...) \
|
||||
do { \
|
||||
DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
|
||||
if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
|
||||
__dynamic_dev_dbg(&descriptor, dev, fmt, \
|
||||
##__VA_ARGS__); \
|
||||
} while (0)
|
||||
|
||||
#define dynamic_netdev_dbg(dev, fmt, ...) \
|
||||
do { \
|
||||
DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt); \
|
||||
if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
|
||||
__dynamic_netdev_dbg(&descriptor, dev, fmt, \
|
||||
##__VA_ARGS__); \
|
||||
} while (0)
|
||||
|
||||
#define dynamic_hex_dump(prefix_str, prefix_type, rowsize, \
|
||||
groupsize, buf, len, ascii) \
|
||||
do { \
|
||||
DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, \
|
||||
__builtin_constant_p(prefix_str) ? prefix_str : "hexdump");\
|
||||
if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)) \
|
||||
print_hex_dump(KERN_DEBUG, prefix_str, \
|
||||
prefix_type, rowsize, groupsize, \
|
||||
buf, len, ascii); \
|
||||
} while (0)
|
||||
|
||||
#else
|
||||
|
||||
#include <linux/string.h>
|
||||
#include <linux/errno.h>
|
||||
|
||||
static inline int ddebug_remove_module(const char *mod)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline int ddebug_dyndbg_module_param_cb(char *param, char *val,
|
||||
const char *modname)
|
||||
{
|
||||
if (strstr(param, "dyndbg")) {
|
||||
/* avoid pr_warn(), which wants pr_fmt() fully defined */
|
||||
printk(KERN_WARNING "dyndbg param is supported only in "
|
||||
"CONFIG_DYNAMIC_DEBUG builds\n");
|
||||
return 0; /* allow and ignore */
|
||||
}
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
#define dynamic_pr_debug(fmt, ...) \
|
||||
do { if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); } while (0)
|
||||
#define dynamic_dev_dbg(dev, fmt, ...) \
|
||||
do { if (0) dev_printk(KERN_DEBUG, dev, fmt, ##__VA_ARGS__); } while (0)
|
||||
#endif
|
||||
|
||||
#endif
|
||||
29
drivers/include/linux/fwnode.h
Normal file
29
drivers/include/linux/fwnode.h
Normal file
@@ -0,0 +1,29 @@
|
||||
/*
|
||||
* fwnode.h - Firmware device node object handle type definition.
|
||||
*
|
||||
* Copyright (C) 2015, Intel Corporation
|
||||
* Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
|
||||
*
|
||||
* 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 _LINUX_FWNODE_H_
|
||||
#define _LINUX_FWNODE_H_
|
||||
|
||||
enum fwnode_type {
|
||||
FWNODE_INVALID = 0,
|
||||
FWNODE_OF,
|
||||
FWNODE_ACPI,
|
||||
FWNODE_ACPI_DATA,
|
||||
FWNODE_PDATA,
|
||||
FWNODE_IRQCHIP,
|
||||
};
|
||||
|
||||
struct fwnode_handle {
|
||||
enum fwnode_type type;
|
||||
struct fwnode_handle *secondary;
|
||||
};
|
||||
|
||||
#endif
|
||||
@@ -1 +1,10 @@
|
||||
//stub
|
||||
#ifndef _LINUX_INIT_H
|
||||
#define _LINUX_INIT_H
|
||||
|
||||
#include <linux/compiler.h>
|
||||
#include <linux/types.h>
|
||||
|
||||
#define __initdata
|
||||
#define __initdata
|
||||
#define __initconst
|
||||
#endif /* _LINUX_INIT_H */
|
||||
|
||||
527
drivers/include/linux/nodemask.h
Normal file
527
drivers/include/linux/nodemask.h
Normal file
@@ -0,0 +1,527 @@
|
||||
#ifndef __LINUX_NODEMASK_H
|
||||
#define __LINUX_NODEMASK_H
|
||||
|
||||
/*
|
||||
* Nodemasks provide a bitmap suitable for representing the
|
||||
* set of Node's in a system, one bit position per Node number.
|
||||
*
|
||||
* See detailed comments in the file linux/bitmap.h describing the
|
||||
* data type on which these nodemasks are based.
|
||||
*
|
||||
* For details of nodemask_parse_user(), see bitmap_parse_user() in
|
||||
* lib/bitmap.c. For details of nodelist_parse(), see bitmap_parselist(),
|
||||
* also in bitmap.c. For details of node_remap(), see bitmap_bitremap in
|
||||
* lib/bitmap.c. For details of nodes_remap(), see bitmap_remap in
|
||||
* lib/bitmap.c. For details of nodes_onto(), see bitmap_onto in
|
||||
* lib/bitmap.c. For details of nodes_fold(), see bitmap_fold in
|
||||
* lib/bitmap.c.
|
||||
*
|
||||
* The available nodemask operations are:
|
||||
*
|
||||
* void node_set(node, mask) turn on bit 'node' in mask
|
||||
* void node_clear(node, mask) turn off bit 'node' in mask
|
||||
* void nodes_setall(mask) set all bits
|
||||
* void nodes_clear(mask) clear all bits
|
||||
* int node_isset(node, mask) true iff bit 'node' set in mask
|
||||
* int node_test_and_set(node, mask) test and set bit 'node' in mask
|
||||
*
|
||||
* void nodes_and(dst, src1, src2) dst = src1 & src2 [intersection]
|
||||
* void nodes_or(dst, src1, src2) dst = src1 | src2 [union]
|
||||
* void nodes_xor(dst, src1, src2) dst = src1 ^ src2
|
||||
* void nodes_andnot(dst, src1, src2) dst = src1 & ~src2
|
||||
* void nodes_complement(dst, src) dst = ~src
|
||||
*
|
||||
* int nodes_equal(mask1, mask2) Does mask1 == mask2?
|
||||
* int nodes_intersects(mask1, mask2) Do mask1 and mask2 intersect?
|
||||
* int nodes_subset(mask1, mask2) Is mask1 a subset of mask2?
|
||||
* int nodes_empty(mask) Is mask empty (no bits sets)?
|
||||
* int nodes_full(mask) Is mask full (all bits sets)?
|
||||
* int nodes_weight(mask) Hamming weight - number of set bits
|
||||
*
|
||||
* void nodes_shift_right(dst, src, n) Shift right
|
||||
* void nodes_shift_left(dst, src, n) Shift left
|
||||
*
|
||||
* int first_node(mask) Number lowest set bit, or MAX_NUMNODES
|
||||
* int next_node(node, mask) Next node past 'node', or MAX_NUMNODES
|
||||
* int first_unset_node(mask) First node not set in mask, or
|
||||
* MAX_NUMNODES.
|
||||
*
|
||||
* nodemask_t nodemask_of_node(node) Return nodemask with bit 'node' set
|
||||
* NODE_MASK_ALL Initializer - all bits set
|
||||
* NODE_MASK_NONE Initializer - no bits set
|
||||
* unsigned long *nodes_addr(mask) Array of unsigned long's in mask
|
||||
*
|
||||
* int nodemask_parse_user(ubuf, ulen, mask) Parse ascii string as nodemask
|
||||
* int nodelist_parse(buf, map) Parse ascii string as nodelist
|
||||
* int node_remap(oldbit, old, new) newbit = map(old, new)(oldbit)
|
||||
* void nodes_remap(dst, src, old, new) *dst = map(old, new)(src)
|
||||
* void nodes_onto(dst, orig, relmap) *dst = orig relative to relmap
|
||||
* void nodes_fold(dst, orig, sz) dst bits = orig bits mod sz
|
||||
*
|
||||
* for_each_node_mask(node, mask) for-loop node over mask
|
||||
*
|
||||
* int num_online_nodes() Number of online Nodes
|
||||
* int num_possible_nodes() Number of all possible Nodes
|
||||
*
|
||||
* int node_random(mask) Random node with set bit in mask
|
||||
*
|
||||
* int node_online(node) Is some node online?
|
||||
* int node_possible(node) Is some node possible?
|
||||
*
|
||||
* node_set_online(node) set bit 'node' in node_online_map
|
||||
* node_set_offline(node) clear bit 'node' in node_online_map
|
||||
*
|
||||
* for_each_node(node) for-loop node over node_possible_map
|
||||
* for_each_online_node(node) for-loop node over node_online_map
|
||||
*
|
||||
* Subtlety:
|
||||
* 1) The 'type-checked' form of node_isset() causes gcc (3.3.2, anyway)
|
||||
* to generate slightly worse code. So use a simple one-line #define
|
||||
* for node_isset(), instead of wrapping an inline inside a macro, the
|
||||
* way we do the other calls.
|
||||
*
|
||||
* NODEMASK_SCRATCH
|
||||
* When doing above logical AND, OR, XOR, Remap operations the callers tend to
|
||||
* need temporary nodemask_t's on the stack. But if NODES_SHIFT is large,
|
||||
* nodemask_t's consume too much stack space. NODEMASK_SCRATCH is a helper
|
||||
* for such situations. See below and CPUMASK_ALLOC also.
|
||||
*/
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/threads.h>
|
||||
#include <linux/bitmap.h>
|
||||
#include <linux/numa.h>
|
||||
|
||||
typedef struct { DECLARE_BITMAP(bits, MAX_NUMNODES); } nodemask_t;
|
||||
extern nodemask_t _unused_nodemask_arg_;
|
||||
|
||||
/**
|
||||
* nodemask_pr_args - printf args to output a nodemask
|
||||
* @maskp: nodemask to be printed
|
||||
*
|
||||
* Can be used to provide arguments for '%*pb[l]' when printing a nodemask.
|
||||
*/
|
||||
#define nodemask_pr_args(maskp) MAX_NUMNODES, (maskp)->bits
|
||||
|
||||
/*
|
||||
* The inline keyword gives the compiler room to decide to inline, or
|
||||
* not inline a function as it sees best. However, as these functions
|
||||
* are called in both __init and non-__init functions, if they are not
|
||||
* inlined we will end up with a section mis-match error (of the type of
|
||||
* freeable items not being freed). So we must use __always_inline here
|
||||
* to fix the problem. If other functions in the future also end up in
|
||||
* this situation they will also need to be annotated as __always_inline
|
||||
*/
|
||||
#define node_set(node, dst) __node_set((node), &(dst))
|
||||
static __always_inline void __node_set(int node, volatile nodemask_t *dstp)
|
||||
{
|
||||
set_bit(node, dstp->bits);
|
||||
}
|
||||
|
||||
#define node_clear(node, dst) __node_clear((node), &(dst))
|
||||
static inline void __node_clear(int node, volatile nodemask_t *dstp)
|
||||
{
|
||||
clear_bit(node, dstp->bits);
|
||||
}
|
||||
|
||||
#define nodes_setall(dst) __nodes_setall(&(dst), MAX_NUMNODES)
|
||||
static inline void __nodes_setall(nodemask_t *dstp, unsigned int nbits)
|
||||
{
|
||||
bitmap_fill(dstp->bits, nbits);
|
||||
}
|
||||
|
||||
#define nodes_clear(dst) __nodes_clear(&(dst), MAX_NUMNODES)
|
||||
static inline void __nodes_clear(nodemask_t *dstp, unsigned int nbits)
|
||||
{
|
||||
bitmap_zero(dstp->bits, nbits);
|
||||
}
|
||||
|
||||
/* No static inline type checking - see Subtlety (1) above. */
|
||||
#define node_isset(node, nodemask) test_bit((node), (nodemask).bits)
|
||||
|
||||
#define node_test_and_set(node, nodemask) \
|
||||
__node_test_and_set((node), &(nodemask))
|
||||
static inline int __node_test_and_set(int node, nodemask_t *addr)
|
||||
{
|
||||
return test_and_set_bit(node, addr->bits);
|
||||
}
|
||||
|
||||
#define nodes_and(dst, src1, src2) \
|
||||
__nodes_and(&(dst), &(src1), &(src2), MAX_NUMNODES)
|
||||
static inline void __nodes_and(nodemask_t *dstp, const nodemask_t *src1p,
|
||||
const nodemask_t *src2p, unsigned int nbits)
|
||||
{
|
||||
bitmap_and(dstp->bits, src1p->bits, src2p->bits, nbits);
|
||||
}
|
||||
|
||||
#define nodes_or(dst, src1, src2) \
|
||||
__nodes_or(&(dst), &(src1), &(src2), MAX_NUMNODES)
|
||||
static inline void __nodes_or(nodemask_t *dstp, const nodemask_t *src1p,
|
||||
const nodemask_t *src2p, unsigned int nbits)
|
||||
{
|
||||
bitmap_or(dstp->bits, src1p->bits, src2p->bits, nbits);
|
||||
}
|
||||
|
||||
#define nodes_xor(dst, src1, src2) \
|
||||
__nodes_xor(&(dst), &(src1), &(src2), MAX_NUMNODES)
|
||||
static inline void __nodes_xor(nodemask_t *dstp, const nodemask_t *src1p,
|
||||
const nodemask_t *src2p, unsigned int nbits)
|
||||
{
|
||||
bitmap_xor(dstp->bits, src1p->bits, src2p->bits, nbits);
|
||||
}
|
||||
|
||||
#define nodes_andnot(dst, src1, src2) \
|
||||
__nodes_andnot(&(dst), &(src1), &(src2), MAX_NUMNODES)
|
||||
static inline void __nodes_andnot(nodemask_t *dstp, const nodemask_t *src1p,
|
||||
const nodemask_t *src2p, unsigned int nbits)
|
||||
{
|
||||
bitmap_andnot(dstp->bits, src1p->bits, src2p->bits, nbits);
|
||||
}
|
||||
|
||||
#define nodes_complement(dst, src) \
|
||||
__nodes_complement(&(dst), &(src), MAX_NUMNODES)
|
||||
static inline void __nodes_complement(nodemask_t *dstp,
|
||||
const nodemask_t *srcp, unsigned int nbits)
|
||||
{
|
||||
bitmap_complement(dstp->bits, srcp->bits, nbits);
|
||||
}
|
||||
|
||||
#define nodes_equal(src1, src2) \
|
||||
__nodes_equal(&(src1), &(src2), MAX_NUMNODES)
|
||||
static inline int __nodes_equal(const nodemask_t *src1p,
|
||||
const nodemask_t *src2p, unsigned int nbits)
|
||||
{
|
||||
return bitmap_equal(src1p->bits, src2p->bits, nbits);
|
||||
}
|
||||
|
||||
#define nodes_intersects(src1, src2) \
|
||||
__nodes_intersects(&(src1), &(src2), MAX_NUMNODES)
|
||||
static inline int __nodes_intersects(const nodemask_t *src1p,
|
||||
const nodemask_t *src2p, unsigned int nbits)
|
||||
{
|
||||
return bitmap_intersects(src1p->bits, src2p->bits, nbits);
|
||||
}
|
||||
|
||||
#define nodes_subset(src1, src2) \
|
||||
__nodes_subset(&(src1), &(src2), MAX_NUMNODES)
|
||||
static inline int __nodes_subset(const nodemask_t *src1p,
|
||||
const nodemask_t *src2p, unsigned int nbits)
|
||||
{
|
||||
return bitmap_subset(src1p->bits, src2p->bits, nbits);
|
||||
}
|
||||
|
||||
#define nodes_empty(src) __nodes_empty(&(src), MAX_NUMNODES)
|
||||
static inline int __nodes_empty(const nodemask_t *srcp, unsigned int nbits)
|
||||
{
|
||||
return bitmap_empty(srcp->bits, nbits);
|
||||
}
|
||||
|
||||
#define nodes_full(nodemask) __nodes_full(&(nodemask), MAX_NUMNODES)
|
||||
static inline int __nodes_full(const nodemask_t *srcp, unsigned int nbits)
|
||||
{
|
||||
return bitmap_full(srcp->bits, nbits);
|
||||
}
|
||||
|
||||
#define nodes_weight(nodemask) __nodes_weight(&(nodemask), MAX_NUMNODES)
|
||||
static inline int __nodes_weight(const nodemask_t *srcp, unsigned int nbits)
|
||||
{
|
||||
return bitmap_weight(srcp->bits, nbits);
|
||||
}
|
||||
|
||||
#define nodes_shift_right(dst, src, n) \
|
||||
__nodes_shift_right(&(dst), &(src), (n), MAX_NUMNODES)
|
||||
static inline void __nodes_shift_right(nodemask_t *dstp,
|
||||
const nodemask_t *srcp, int n, int nbits)
|
||||
{
|
||||
bitmap_shift_right(dstp->bits, srcp->bits, n, nbits);
|
||||
}
|
||||
|
||||
#define nodes_shift_left(dst, src, n) \
|
||||
__nodes_shift_left(&(dst), &(src), (n), MAX_NUMNODES)
|
||||
static inline void __nodes_shift_left(nodemask_t *dstp,
|
||||
const nodemask_t *srcp, int n, int nbits)
|
||||
{
|
||||
bitmap_shift_left(dstp->bits, srcp->bits, n, nbits);
|
||||
}
|
||||
|
||||
/* FIXME: better would be to fix all architectures to never return
|
||||
> MAX_NUMNODES, then the silly min_ts could be dropped. */
|
||||
|
||||
#define first_node(src) __first_node(&(src))
|
||||
static inline int __first_node(const nodemask_t *srcp)
|
||||
{
|
||||
return min_t(int, MAX_NUMNODES, find_first_bit(srcp->bits, MAX_NUMNODES));
|
||||
}
|
||||
|
||||
#define next_node(n, src) __next_node((n), &(src))
|
||||
static inline int __next_node(int n, const nodemask_t *srcp)
|
||||
{
|
||||
return min_t(int,MAX_NUMNODES,find_next_bit(srcp->bits, MAX_NUMNODES, n+1));
|
||||
}
|
||||
|
||||
static inline void init_nodemask_of_node(nodemask_t *mask, int node)
|
||||
{
|
||||
nodes_clear(*mask);
|
||||
node_set(node, *mask);
|
||||
}
|
||||
|
||||
#define nodemask_of_node(node) \
|
||||
({ \
|
||||
typeof(_unused_nodemask_arg_) m; \
|
||||
if (sizeof(m) == sizeof(unsigned long)) { \
|
||||
m.bits[0] = 1UL << (node); \
|
||||
} else { \
|
||||
init_nodemask_of_node(&m, (node)); \
|
||||
} \
|
||||
m; \
|
||||
})
|
||||
|
||||
#define first_unset_node(mask) __first_unset_node(&(mask))
|
||||
static inline int __first_unset_node(const nodemask_t *maskp)
|
||||
{
|
||||
return min_t(int,MAX_NUMNODES,
|
||||
find_first_zero_bit(maskp->bits, MAX_NUMNODES));
|
||||
}
|
||||
|
||||
#define NODE_MASK_LAST_WORD BITMAP_LAST_WORD_MASK(MAX_NUMNODES)
|
||||
|
||||
#if MAX_NUMNODES <= BITS_PER_LONG
|
||||
|
||||
#define NODE_MASK_ALL \
|
||||
((nodemask_t) { { \
|
||||
[BITS_TO_LONGS(MAX_NUMNODES)-1] = NODE_MASK_LAST_WORD \
|
||||
} })
|
||||
|
||||
#else
|
||||
|
||||
#define NODE_MASK_ALL \
|
||||
((nodemask_t) { { \
|
||||
[0 ... BITS_TO_LONGS(MAX_NUMNODES)-2] = ~0UL, \
|
||||
[BITS_TO_LONGS(MAX_NUMNODES)-1] = NODE_MASK_LAST_WORD \
|
||||
} })
|
||||
|
||||
#endif
|
||||
|
||||
#define NODE_MASK_NONE \
|
||||
((nodemask_t) { { \
|
||||
[0 ... BITS_TO_LONGS(MAX_NUMNODES)-1] = 0UL \
|
||||
} })
|
||||
|
||||
#define nodes_addr(src) ((src).bits)
|
||||
|
||||
#define nodemask_parse_user(ubuf, ulen, dst) \
|
||||
__nodemask_parse_user((ubuf), (ulen), &(dst), MAX_NUMNODES)
|
||||
static inline int __nodemask_parse_user(const char __user *buf, int len,
|
||||
nodemask_t *dstp, int nbits)
|
||||
{
|
||||
return bitmap_parse_user(buf, len, dstp->bits, nbits);
|
||||
}
|
||||
|
||||
#define nodelist_parse(buf, dst) __nodelist_parse((buf), &(dst), MAX_NUMNODES)
|
||||
static inline int __nodelist_parse(const char *buf, nodemask_t *dstp, int nbits)
|
||||
{
|
||||
return bitmap_parselist(buf, dstp->bits, nbits);
|
||||
}
|
||||
|
||||
#define node_remap(oldbit, old, new) \
|
||||
__node_remap((oldbit), &(old), &(new), MAX_NUMNODES)
|
||||
static inline int __node_remap(int oldbit,
|
||||
const nodemask_t *oldp, const nodemask_t *newp, int nbits)
|
||||
{
|
||||
return bitmap_bitremap(oldbit, oldp->bits, newp->bits, nbits);
|
||||
}
|
||||
|
||||
#define nodes_remap(dst, src, old, new) \
|
||||
__nodes_remap(&(dst), &(src), &(old), &(new), MAX_NUMNODES)
|
||||
static inline void __nodes_remap(nodemask_t *dstp, const nodemask_t *srcp,
|
||||
const nodemask_t *oldp, const nodemask_t *newp, int nbits)
|
||||
{
|
||||
bitmap_remap(dstp->bits, srcp->bits, oldp->bits, newp->bits, nbits);
|
||||
}
|
||||
|
||||
#define nodes_onto(dst, orig, relmap) \
|
||||
__nodes_onto(&(dst), &(orig), &(relmap), MAX_NUMNODES)
|
||||
static inline void __nodes_onto(nodemask_t *dstp, const nodemask_t *origp,
|
||||
const nodemask_t *relmapp, int nbits)
|
||||
{
|
||||
bitmap_onto(dstp->bits, origp->bits, relmapp->bits, nbits);
|
||||
}
|
||||
|
||||
#define nodes_fold(dst, orig, sz) \
|
||||
__nodes_fold(&(dst), &(orig), sz, MAX_NUMNODES)
|
||||
static inline void __nodes_fold(nodemask_t *dstp, const nodemask_t *origp,
|
||||
int sz, int nbits)
|
||||
{
|
||||
bitmap_fold(dstp->bits, origp->bits, sz, nbits);
|
||||
}
|
||||
|
||||
#if MAX_NUMNODES > 1
|
||||
#define for_each_node_mask(node, mask) \
|
||||
for ((node) = first_node(mask); \
|
||||
(node) < MAX_NUMNODES; \
|
||||
(node) = next_node((node), (mask)))
|
||||
#else /* MAX_NUMNODES == 1 */
|
||||
#define for_each_node_mask(node, mask) \
|
||||
if (!nodes_empty(mask)) \
|
||||
for ((node) = 0; (node) < 1; (node)++)
|
||||
#endif /* MAX_NUMNODES */
|
||||
|
||||
/*
|
||||
* Bitmasks that are kept for all the nodes.
|
||||
*/
|
||||
enum node_states {
|
||||
N_POSSIBLE, /* The node could become online at some point */
|
||||
N_ONLINE, /* The node is online */
|
||||
N_NORMAL_MEMORY, /* The node has regular memory */
|
||||
#ifdef CONFIG_HIGHMEM
|
||||
N_HIGH_MEMORY, /* The node has regular or high memory */
|
||||
#else
|
||||
N_HIGH_MEMORY = N_NORMAL_MEMORY,
|
||||
#endif
|
||||
#ifdef CONFIG_MOVABLE_NODE
|
||||
N_MEMORY, /* The node has memory(regular, high, movable) */
|
||||
#else
|
||||
N_MEMORY = N_HIGH_MEMORY,
|
||||
#endif
|
||||
N_CPU, /* The node has one or more cpus */
|
||||
NR_NODE_STATES
|
||||
};
|
||||
|
||||
/*
|
||||
* The following particular system nodemasks and operations
|
||||
* on them manage all possible and online nodes.
|
||||
*/
|
||||
|
||||
extern nodemask_t node_states[NR_NODE_STATES];
|
||||
|
||||
#if MAX_NUMNODES > 1
|
||||
static inline int node_state(int node, enum node_states state)
|
||||
{
|
||||
return node_isset(node, node_states[state]);
|
||||
}
|
||||
|
||||
static inline void node_set_state(int node, enum node_states state)
|
||||
{
|
||||
__node_set(node, &node_states[state]);
|
||||
}
|
||||
|
||||
static inline void node_clear_state(int node, enum node_states state)
|
||||
{
|
||||
__node_clear(node, &node_states[state]);
|
||||
}
|
||||
|
||||
static inline int num_node_state(enum node_states state)
|
||||
{
|
||||
return nodes_weight(node_states[state]);
|
||||
}
|
||||
|
||||
#define for_each_node_state(__node, __state) \
|
||||
for_each_node_mask((__node), node_states[__state])
|
||||
|
||||
#define first_online_node first_node(node_states[N_ONLINE])
|
||||
#define first_memory_node first_node(node_states[N_MEMORY])
|
||||
static inline int next_online_node(int nid)
|
||||
{
|
||||
return next_node(nid, node_states[N_ONLINE]);
|
||||
}
|
||||
static inline int next_memory_node(int nid)
|
||||
{
|
||||
return next_node(nid, node_states[N_MEMORY]);
|
||||
}
|
||||
|
||||
extern int nr_node_ids;
|
||||
extern int nr_online_nodes;
|
||||
|
||||
static inline void node_set_online(int nid)
|
||||
{
|
||||
node_set_state(nid, N_ONLINE);
|
||||
nr_online_nodes = num_node_state(N_ONLINE);
|
||||
}
|
||||
|
||||
static inline void node_set_offline(int nid)
|
||||
{
|
||||
node_clear_state(nid, N_ONLINE);
|
||||
nr_online_nodes = num_node_state(N_ONLINE);
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
static inline int node_state(int node, enum node_states state)
|
||||
{
|
||||
return node == 0;
|
||||
}
|
||||
|
||||
static inline void node_set_state(int node, enum node_states state)
|
||||
{
|
||||
}
|
||||
|
||||
static inline void node_clear_state(int node, enum node_states state)
|
||||
{
|
||||
}
|
||||
|
||||
static inline int num_node_state(enum node_states state)
|
||||
{
|
||||
return 1;
|
||||
}
|
||||
|
||||
#define for_each_node_state(node, __state) \
|
||||
for ( (node) = 0; (node) == 0; (node) = 1)
|
||||
|
||||
#define first_online_node 0
|
||||
#define first_memory_node 0
|
||||
#define next_online_node(nid) (MAX_NUMNODES)
|
||||
#define nr_node_ids 1
|
||||
#define nr_online_nodes 1
|
||||
|
||||
#define node_set_online(node) node_set_state((node), N_ONLINE)
|
||||
#define node_set_offline(node) node_clear_state((node), N_ONLINE)
|
||||
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_NUMA) && (MAX_NUMNODES > 1)
|
||||
extern int node_random(const nodemask_t *maskp);
|
||||
#else
|
||||
static inline int node_random(const nodemask_t *mask)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
#define node_online_map node_states[N_ONLINE]
|
||||
#define node_possible_map node_states[N_POSSIBLE]
|
||||
|
||||
#define num_online_nodes() num_node_state(N_ONLINE)
|
||||
#define num_possible_nodes() num_node_state(N_POSSIBLE)
|
||||
#define node_online(node) node_state((node), N_ONLINE)
|
||||
#define node_possible(node) node_state((node), N_POSSIBLE)
|
||||
|
||||
#define for_each_node(node) for_each_node_state(node, N_POSSIBLE)
|
||||
#define for_each_online_node(node) for_each_node_state(node, N_ONLINE)
|
||||
|
||||
/*
|
||||
* For nodemask scrach area.
|
||||
* NODEMASK_ALLOC(type, name) allocates an object with a specified type and
|
||||
* name.
|
||||
*/
|
||||
#if NODES_SHIFT > 8 /* nodemask_t > 256 bytes */
|
||||
#define NODEMASK_ALLOC(type, name, gfp_flags) \
|
||||
type *name = kmalloc(sizeof(*name), gfp_flags)
|
||||
#define NODEMASK_FREE(m) kfree(m)
|
||||
#else
|
||||
#define NODEMASK_ALLOC(type, name, gfp_flags) type _##name, *name = &_##name
|
||||
#define NODEMASK_FREE(m) do {} while (0)
|
||||
#endif
|
||||
|
||||
/* A example struture for using NODEMASK_ALLOC, used in mempolicy. */
|
||||
struct nodemask_scratch {
|
||||
nodemask_t mask1;
|
||||
nodemask_t mask2;
|
||||
};
|
||||
|
||||
#define NODEMASK_SCRATCH(x) \
|
||||
NODEMASK_ALLOC(struct nodemask_scratch, x, \
|
||||
GFP_KERNEL | __GFP_NORETRY)
|
||||
#define NODEMASK_SCRATCH_FREE(x) NODEMASK_FREE(x)
|
||||
|
||||
|
||||
#endif /* __LINUX_NODEMASK_H */
|
||||
15
drivers/include/linux/numa.h
Normal file
15
drivers/include/linux/numa.h
Normal file
@@ -0,0 +1,15 @@
|
||||
#ifndef _LINUX_NUMA_H
|
||||
#define _LINUX_NUMA_H
|
||||
|
||||
|
||||
#ifdef CONFIG_NODES_SHIFT
|
||||
#define NODES_SHIFT CONFIG_NODES_SHIFT
|
||||
#else
|
||||
#define NODES_SHIFT 0
|
||||
#endif
|
||||
|
||||
#define MAX_NUMNODES (1 << NODES_SHIFT)
|
||||
|
||||
#define NUMA_NO_NODE (-1)
|
||||
|
||||
#endif /* _LINUX_NUMA_H */
|
||||
185
drivers/include/linux/property.h
Normal file
185
drivers/include/linux/property.h
Normal file
@@ -0,0 +1,185 @@
|
||||
/*
|
||||
* property.h - Unified device property interface.
|
||||
*
|
||||
* Copyright (C) 2014, Intel Corporation
|
||||
* Authors: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
|
||||
* Mika Westerberg <mika.westerberg@linux.intel.com>
|
||||
*
|
||||
* 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 _LINUX_PROPERTY_H_
|
||||
#define _LINUX_PROPERTY_H_
|
||||
|
||||
#include <linux/fwnode.h>
|
||||
#include <linux/types.h>
|
||||
|
||||
struct device;
|
||||
|
||||
enum dev_prop_type {
|
||||
DEV_PROP_U8,
|
||||
DEV_PROP_U16,
|
||||
DEV_PROP_U32,
|
||||
DEV_PROP_U64,
|
||||
DEV_PROP_STRING,
|
||||
DEV_PROP_MAX,
|
||||
};
|
||||
|
||||
enum dev_dma_attr {
|
||||
DEV_DMA_NOT_SUPPORTED,
|
||||
DEV_DMA_NON_COHERENT,
|
||||
DEV_DMA_COHERENT,
|
||||
};
|
||||
|
||||
bool device_property_present(struct device *dev, const char *propname);
|
||||
int device_property_read_u8_array(struct device *dev, const char *propname,
|
||||
u8 *val, size_t nval);
|
||||
int device_property_read_u16_array(struct device *dev, const char *propname,
|
||||
u16 *val, size_t nval);
|
||||
int device_property_read_u32_array(struct device *dev, const char *propname,
|
||||
u32 *val, size_t nval);
|
||||
int device_property_read_u64_array(struct device *dev, const char *propname,
|
||||
u64 *val, size_t nval);
|
||||
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,
|
||||
const char *propname, u8 *val,
|
||||
size_t nval);
|
||||
int fwnode_property_read_u16_array(struct fwnode_handle *fwnode,
|
||||
const char *propname, u16 *val,
|
||||
size_t nval);
|
||||
int fwnode_property_read_u32_array(struct fwnode_handle *fwnode,
|
||||
const char *propname, u32 *val,
|
||||
size_t nval);
|
||||
int fwnode_property_read_u64_array(struct fwnode_handle *fwnode,
|
||||
const char *propname, u64 *val,
|
||||
size_t nval);
|
||||
int fwnode_property_read_string_array(struct fwnode_handle *fwnode,
|
||||
const char *propname, const char **val,
|
||||
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);
|
||||
|
||||
#define device_for_each_child_node(dev, child) \
|
||||
for (child = device_get_next_child_node(dev, NULL); child; \
|
||||
child = device_get_next_child_node(dev, child))
|
||||
|
||||
void fwnode_handle_put(struct fwnode_handle *fwnode);
|
||||
|
||||
unsigned int device_get_child_node_count(struct device *dev);
|
||||
|
||||
static inline bool device_property_read_bool(struct device *dev,
|
||||
const char *propname)
|
||||
{
|
||||
return device_property_present(dev, propname);
|
||||
}
|
||||
|
||||
static inline int device_property_read_u8(struct device *dev,
|
||||
const char *propname, u8 *val)
|
||||
{
|
||||
return device_property_read_u8_array(dev, propname, val, 1);
|
||||
}
|
||||
|
||||
static inline int device_property_read_u16(struct device *dev,
|
||||
const char *propname, u16 *val)
|
||||
{
|
||||
return device_property_read_u16_array(dev, propname, val, 1);
|
||||
}
|
||||
|
||||
static inline int device_property_read_u32(struct device *dev,
|
||||
const char *propname, u32 *val)
|
||||
{
|
||||
return device_property_read_u32_array(dev, propname, val, 1);
|
||||
}
|
||||
|
||||
static inline int device_property_read_u64(struct device *dev,
|
||||
const char *propname, u64 *val)
|
||||
{
|
||||
return device_property_read_u64_array(dev, propname, val, 1);
|
||||
}
|
||||
|
||||
static inline bool fwnode_property_read_bool(struct fwnode_handle *fwnode,
|
||||
const char *propname)
|
||||
{
|
||||
return fwnode_property_present(fwnode, propname);
|
||||
}
|
||||
|
||||
static inline int fwnode_property_read_u8(struct fwnode_handle *fwnode,
|
||||
const char *propname, u8 *val)
|
||||
{
|
||||
return fwnode_property_read_u8_array(fwnode, propname, val, 1);
|
||||
}
|
||||
|
||||
static inline int fwnode_property_read_u16(struct fwnode_handle *fwnode,
|
||||
const char *propname, u16 *val)
|
||||
{
|
||||
return fwnode_property_read_u16_array(fwnode, propname, val, 1);
|
||||
}
|
||||
|
||||
static inline int fwnode_property_read_u32(struct fwnode_handle *fwnode,
|
||||
const char *propname, u32 *val)
|
||||
{
|
||||
return fwnode_property_read_u32_array(fwnode, propname, val, 1);
|
||||
}
|
||||
|
||||
static inline int fwnode_property_read_u64(struct fwnode_handle *fwnode,
|
||||
const char *propname, u64 *val)
|
||||
{
|
||||
return fwnode_property_read_u64_array(fwnode, propname, val, 1);
|
||||
}
|
||||
|
||||
/**
|
||||
* struct property_entry - "Built-in" device property representation.
|
||||
* @name: Name of the property.
|
||||
* @type: Type of the property.
|
||||
* @nval: Number of items of type @type making up the value.
|
||||
* @value: Value of the property (an array of @nval items of type @type).
|
||||
*/
|
||||
struct property_entry {
|
||||
const char *name;
|
||||
enum dev_prop_type type;
|
||||
size_t nval;
|
||||
union {
|
||||
void *raw_data;
|
||||
u8 *u8_data;
|
||||
u16 *u16_data;
|
||||
u32 *u32_data;
|
||||
u64 *u64_data;
|
||||
const char **str;
|
||||
} value;
|
||||
};
|
||||
|
||||
/**
|
||||
* struct property_set - Collection of "built-in" device properties.
|
||||
* @fwnode: Handle to be pointed to by the fwnode field of struct device.
|
||||
* @properties: Array of properties terminated with a null entry.
|
||||
*/
|
||||
struct property_set {
|
||||
struct fwnode_handle fwnode;
|
||||
struct property_entry *properties;
|
||||
};
|
||||
|
||||
void device_add_property_set(struct device *dev, struct property_set *pset);
|
||||
|
||||
bool device_dma_supported(struct device *dev);
|
||||
|
||||
enum dev_dma_attr device_get_dma_attr(struct device *dev);
|
||||
|
||||
int device_get_phy_mode(struct device *dev);
|
||||
|
||||
void *device_get_mac_address(struct device *dev, char *addr, int alen);
|
||||
|
||||
#endif /* _LINUX_PROPERTY_H_ */
|
||||
@@ -217,6 +217,7 @@ void call_rcu_sched(struct rcu_head *head,
|
||||
|
||||
void synchronize_sched(void);
|
||||
|
||||
#define wait_rcu_gp(...)
|
||||
/**
|
||||
* call_rcu_tasks() - Queue an RCU for invocation task-based grace period
|
||||
* @head: structure to be used for queueing the RCU updates.
|
||||
|
||||
@@ -378,6 +378,4 @@ bool sg_miter_skip(struct sg_mapping_iter *miter, off_t offset);
|
||||
bool sg_miter_next(struct sg_mapping_iter *miter);
|
||||
void sg_miter_stop(struct sg_mapping_iter *miter);
|
||||
|
||||
#define dma_unmap_sg(d, s, n, r)
|
||||
|
||||
#endif /* _LINUX_SCATTERLIST_H */
|
||||
|
||||
158
drivers/include/linux/timex.h
Normal file
158
drivers/include/linux/timex.h
Normal file
@@ -0,0 +1,158 @@
|
||||
/*****************************************************************************
|
||||
* *
|
||||
* Copyright (c) David L. Mills 1993 *
|
||||
* *
|
||||
* Permission to use, copy, modify, and distribute this software and its *
|
||||
* documentation for any purpose and without fee is hereby granted, provided *
|
||||
* that the above copyright notice appears in all copies and that both the *
|
||||
* copyright notice and this permission notice appear in supporting *
|
||||
* documentation, and that the name University of Delaware not be used in *
|
||||
* advertising or publicity pertaining to distribution of the software *
|
||||
* without specific, written prior permission. The University of Delaware *
|
||||
* makes no representations about the suitability this software for any *
|
||||
* purpose. It is provided "as is" without express or implied warranty. *
|
||||
* *
|
||||
*****************************************************************************/
|
||||
|
||||
/*
|
||||
* Modification history timex.h
|
||||
*
|
||||
* 29 Dec 97 Russell King
|
||||
* Moved CLOCK_TICK_RATE, CLOCK_TICK_FACTOR and FINETUNE to asm/timex.h
|
||||
* for ARM machines
|
||||
*
|
||||
* 9 Jan 97 Adrian Sun
|
||||
* Shifted LATCH define to allow access to alpha machines.
|
||||
*
|
||||
* 26 Sep 94 David L. Mills
|
||||
* Added defines for hybrid phase/frequency-lock loop.
|
||||
*
|
||||
* 19 Mar 94 David L. Mills
|
||||
* Moved defines from kernel routines to header file and added new
|
||||
* defines for PPS phase-lock loop.
|
||||
*
|
||||
* 20 Feb 94 David L. Mills
|
||||
* Revised status codes and structures for external clock and PPS
|
||||
* signal discipline.
|
||||
*
|
||||
* 28 Nov 93 David L. Mills
|
||||
* Adjusted parameters to improve stability and increase poll
|
||||
* interval.
|
||||
*
|
||||
* 17 Sep 93 David L. Mills
|
||||
* Created file $NTP/include/sys/timex.h
|
||||
* 07 Oct 93 Torsten Duwe
|
||||
* Derived linux/timex.h
|
||||
* 1995-08-13 Torsten Duwe
|
||||
* kernel PLL updated to 1994-12-13 specs (rfc-1589)
|
||||
* 1997-08-30 Ulrich Windl
|
||||
* Added new constant NTP_PHASE_LIMIT
|
||||
* 2004-08-12 Christoph Lameter
|
||||
* Reworked time interpolation logic
|
||||
*/
|
||||
#ifndef _LINUX_TIMEX_H
|
||||
#define _LINUX_TIMEX_H
|
||||
|
||||
#define ADJ_ADJTIME 0x8000 /* switch between adjtime/adjtimex modes */
|
||||
#define ADJ_OFFSET_SINGLESHOT 0x0001 /* old-fashioned adjtime */
|
||||
#define ADJ_OFFSET_READONLY 0x2000 /* read-only adjtime */
|
||||
#include <linux/compiler.h>
|
||||
#include <linux/types.h>
|
||||
|
||||
|
||||
#ifndef random_get_entropy
|
||||
/*
|
||||
* The random_get_entropy() function is used by the /dev/random driver
|
||||
* in order to extract entropy via the relative unpredictability of
|
||||
* when an interrupt takes places versus a high speed, fine-grained
|
||||
* timing source or cycle counter. Since it will be occurred on every
|
||||
* single interrupt, it must have a very low cost/overhead.
|
||||
*
|
||||
* By default we use get_cycles() for this purpose, but individual
|
||||
* architectures may override this in their asm/timex.h header file.
|
||||
*/
|
||||
#define random_get_entropy() get_cycles()
|
||||
#endif
|
||||
|
||||
/*
|
||||
* SHIFT_PLL is used as a dampening factor to define how much we
|
||||
* adjust the frequency correction for a given offset in PLL mode.
|
||||
* It also used in dampening the offset correction, to define how
|
||||
* much of the current value in time_offset we correct for each
|
||||
* second. Changing this value changes the stiffness of the ntp
|
||||
* adjustment code. A lower value makes it more flexible, reducing
|
||||
* NTP convergence time. A higher value makes it stiffer, increasing
|
||||
* convergence time, but making the clock more stable.
|
||||
*
|
||||
* In David Mills' nanokernel reference implementation SHIFT_PLL is 4.
|
||||
* However this seems to increase convergence time much too long.
|
||||
*
|
||||
* https://lists.ntp.org/pipermail/hackers/2008-January/003487.html
|
||||
*
|
||||
* In the above mailing list discussion, it seems the value of 4
|
||||
* was appropriate for other Unix systems with HZ=100, and that
|
||||
* SHIFT_PLL should be decreased as HZ increases. However, Linux's
|
||||
* clock steering implementation is HZ independent.
|
||||
*
|
||||
* Through experimentation, a SHIFT_PLL value of 2 was found to allow
|
||||
* for fast convergence (very similar to the NTPv3 code used prior to
|
||||
* v2.6.19), with good clock stability.
|
||||
*
|
||||
*
|
||||
* SHIFT_FLL is used as a dampening factor to define how much we
|
||||
* adjust the frequency correction for a given offset in FLL mode.
|
||||
* In David Mills' nanokernel reference implementation SHIFT_FLL is 2.
|
||||
*
|
||||
* MAXTC establishes the maximum time constant of the PLL.
|
||||
*/
|
||||
#define SHIFT_PLL 2 /* PLL frequency factor (shift) */
|
||||
#define SHIFT_FLL 2 /* FLL frequency factor (shift) */
|
||||
#define MAXTC 10 /* maximum time constant (shift) */
|
||||
|
||||
/*
|
||||
* SHIFT_USEC defines the scaling (shift) of the time_freq and
|
||||
* time_tolerance variables, which represent the current frequency
|
||||
* offset and maximum frequency tolerance.
|
||||
*/
|
||||
#define SHIFT_USEC 16 /* frequency offset scale (shift) */
|
||||
#define PPM_SCALE ((s64)NSEC_PER_USEC << (NTP_SCALE_SHIFT - SHIFT_USEC))
|
||||
#define PPM_SCALE_INV_SHIFT 19
|
||||
#define PPM_SCALE_INV ((1LL << (PPM_SCALE_INV_SHIFT + NTP_SCALE_SHIFT)) / \
|
||||
PPM_SCALE + 1)
|
||||
|
||||
#define MAXPHASE 500000000L /* max phase error (ns) */
|
||||
#define MAXFREQ 500000 /* max frequency error (ns/s) */
|
||||
#define MAXFREQ_SCALED ((s64)MAXFREQ << NTP_SCALE_SHIFT)
|
||||
#define MINSEC 256 /* min interval between updates (s) */
|
||||
#define MAXSEC 2048 /* max interval between updates (s) */
|
||||
#define NTP_PHASE_LIMIT ((MAXPHASE / NSEC_PER_USEC) << 5) /* beyond max. dispersion */
|
||||
|
||||
/*
|
||||
* kernel variables
|
||||
* Note: maximum error = NTP synch distance = dispersion + delay / 2;
|
||||
* estimated error = NTP dispersion.
|
||||
*/
|
||||
extern unsigned long tick_usec; /* USER_HZ period (usec) */
|
||||
extern unsigned long tick_nsec; /* SHIFTED_HZ period (nsec) */
|
||||
|
||||
/* Required to safely shift negative values */
|
||||
#define shift_right(x, s) ({ \
|
||||
__typeof__(x) __x = (x); \
|
||||
__typeof__(s) __s = (s); \
|
||||
__x < 0 ? -(-__x >> __s) : __x >> __s; \
|
||||
})
|
||||
|
||||
#define NTP_SCALE_SHIFT 32
|
||||
|
||||
#define NTP_INTERVAL_FREQ (HZ)
|
||||
#define NTP_INTERVAL_LENGTH (NSEC_PER_SEC/NTP_INTERVAL_FREQ)
|
||||
|
||||
|
||||
|
||||
int read_current_timer(unsigned long *timer_val);
|
||||
void ntp_notify_cmos_timer(void);
|
||||
|
||||
/* The clock frequency of the i8253/i8254 PIT */
|
||||
#define PIT_TICK_RATE 1193182ul
|
||||
|
||||
#endif /* LINUX_TIMEX_H */
|
||||
Reference in New Issue
Block a user