Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 16c29daf authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'syscore' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6 

* 'syscore' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
  Introduce ARCH_NO_SYSDEV_OPS config option (v2)
  cpufreq: Use syscore_ops for boot CPU suspend/resume (v2)
  KVM: Use syscore_ops instead of sysdev class and sysdev
  PCI / Intel IOMMU: Use syscore_ops instead of sysdev class and sysdev
  timekeeping: Use syscore_ops instead of sysdev class and sysdev
  x86: Use syscore_ops instead of sysdev classes and sysdevs
parents dc50eddb d47d81c0

arch/x86/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -71,6 +71,7 @@ config X86 
	select GENERIC_IRQ_SHOW

	select IRQ_FORCED_THREADING

	select USE_GENERIC_SMP_HELPERS if SMP

	select ARCH_NO_SYSDEV_OPS



config INSTRUCTION_DECODER

	def_bool (KPROBES || PERF_EVENTS)

arch/x86/kernel/amd_iommu_init.c

+6 −20
Original line number Diff line number Diff line
@@ -21,7 +21,7 @@ 
#include <linux/acpi.h>

#include <linux/list.h>

#include <linux/slab.h>

#include <linux/sysdev.h>

#include <linux/syscore_ops.h>

#include <linux/interrupt.h>

#include <linux/msi.h>

#include <asm/pci-direct.h>
@@ -1260,7 +1260,7 @@ static void disable_iommus(void) 
 * disable suspend until real resume implemented

 */



static int amd_iommu_resume(struct sys_device *dev)

static void amd_iommu_resume(void)

{

	struct amd_iommu *iommu;
@@ -1276,11 +1276,9 @@ static int amd_iommu_resume(struct sys_device *dev) 
	 */

	amd_iommu_flush_all_devices();

	amd_iommu_flush_all_domains();



	return 0;

}



static int amd_iommu_suspend(struct sys_device *dev, pm_message_t state)

static int amd_iommu_suspend(void)

{

	/* disable IOMMUs to go out of the way for BIOS */

	disable_iommus();
@@ -1288,17 +1286,11 @@ static int amd_iommu_suspend(struct sys_device *dev, pm_message_t state) 
	return 0;

}



static struct sysdev_class amd_iommu_sysdev_class = {

	.name = "amd_iommu",

static struct syscore_ops amd_iommu_syscore_ops = {

	.suspend = amd_iommu_suspend,

	.resume = amd_iommu_resume,

};



static struct sys_device device_amd_iommu = {

	.id = 0,

	.cls = &amd_iommu_sysdev_class,

};



/*

 * This is the core init function for AMD IOMMU hardware in the system.

 * This function is called from the generic x86 DMA layer initialization
@@ -1415,14 +1407,6 @@ static int __init amd_iommu_init(void) 
		goto free;

	}



	ret = sysdev_class_register(&amd_iommu_sysdev_class);

	if (ret)

		goto free;



	ret = sysdev_register(&device_amd_iommu);

	if (ret)

		goto free;



	ret = amd_iommu_init_devices();

	if (ret)

		goto free;
@@ -1441,6 +1425,8 @@ static int __init amd_iommu_init(void) 


	amd_iommu_init_notifier();



	register_syscore_ops(&amd_iommu_syscore_ops);



	if (iommu_pass_through)

		goto out;

arch/x86/kernel/apic/apic.c

+9 −24
Original line number Diff line number Diff line
@@ -24,7 +24,7 @@ 
#include <linux/ftrace.h>

#include <linux/ioport.h>

#include <linux/module.h>

#include <linux/sysdev.h>

#include <linux/syscore_ops.h>

#include <linux/delay.h>

#include <linux/timex.h>

#include <linux/dmar.h>
@@ -2046,7 +2046,7 @@ static struct { 
	unsigned int apic_thmr;

} apic_pm_state;



static int lapic_suspend(struct sys_device *dev, pm_message_t state)

static int lapic_suspend(void)

{

	unsigned long flags;

	int maxlvt;
@@ -2084,23 +2084,21 @@ static int lapic_suspend(struct sys_device *dev, pm_message_t state) 
	return 0;

}



static int lapic_resume(struct sys_device *dev)

static void lapic_resume(void)

{

	unsigned int l, h;

	unsigned long flags;

	int maxlvt;

	int ret = 0;

	int maxlvt, ret;

	struct IO_APIC_route_entry **ioapic_entries = NULL;



	if (!apic_pm_state.active)

		return 0;

		return;



	local_irq_save(flags);

	if (intr_remapping_enabled) {

		ioapic_entries = alloc_ioapic_entries();

		if (!ioapic_entries) {

			WARN(1, "Alloc ioapic_entries in lapic resume failed.");

			ret = -ENOMEM;

			goto restore;

		}
@@ -2162,8 +2160,6 @@ static int lapic_resume(struct sys_device *dev) 
	}

restore:

	local_irq_restore(flags);



	return ret;

}



/*
@@ -2171,17 +2167,11 @@ static int lapic_resume(struct sys_device *dev) 
 * are needed on every CPU up until machine_halt/restart/poweroff.

 */



static struct sysdev_class lapic_sysclass = {

	.name		= "lapic",

static struct syscore_ops lapic_syscore_ops = {

	.resume		= lapic_resume,

	.suspend	= lapic_suspend,

};



static struct sys_device device_lapic = {

	.id	= 0,

	.cls	= &lapic_sysclass,

};



static void __cpuinit apic_pm_activate(void)

{

	apic_pm_state.active = 1;
@@ -2189,16 +2179,11 @@ static void __cpuinit apic_pm_activate(void) 


static int __init init_lapic_sysfs(void)

{

	int error;



	if (!cpu_has_apic)

		return 0;

	/* XXX: remove suspend/resume procs if !apic_pm_state.active? */

	if (cpu_has_apic)

		register_syscore_ops(&lapic_syscore_ops);



	error = sysdev_class_register(&lapic_sysclass);

	if (!error)

		error = sysdev_register(&device_lapic);

	return error;

	return 0;

}



/* local apic needs to resume before other devices access its registers. */

arch/x86/kernel/apic/io_apic.c

+46 −51
Original line number Diff line number Diff line
@@ -30,7 +30,7 @@ 
#include <linux/compiler.h>

#include <linux/acpi.h>

#include <linux/module.h>

#include <linux/sysdev.h>

#include <linux/syscore_ops.h>

#include <linux/msi.h>

#include <linux/htirq.h>

#include <linux/freezer.h>
@@ -2918,89 +2918,84 @@ static int __init io_apic_bug_finalize(void) 


late_initcall(io_apic_bug_finalize);



struct sysfs_ioapic_data {

	struct sys_device dev;

	struct IO_APIC_route_entry entry[0];

};

static struct sysfs_ioapic_data * mp_ioapic_data[MAX_IO_APICS];

static struct IO_APIC_route_entry *ioapic_saved_data[MAX_IO_APICS];



static int ioapic_suspend(struct sys_device *dev, pm_message_t state)

static void suspend_ioapic(int ioapic_id)

{

	struct IO_APIC_route_entry *entry;

	struct sysfs_ioapic_data *data;

	struct IO_APIC_route_entry *saved_data = ioapic_saved_data[ioapic_id];

	int i;



	data = container_of(dev, struct sysfs_ioapic_data, dev);

	entry = data->entry;

	for (i = 0; i < nr_ioapic_registers[dev->id]; i ++, entry ++ )

		*entry = ioapic_read_entry(dev->id, i);

	if (!saved_data)

		return;



	for (i = 0; i < nr_ioapic_registers[ioapic_id]; i++)

		saved_data[i] = ioapic_read_entry(ioapic_id, i);

}



static int ioapic_suspend(void)

{

	int ioapic_id;



	for (ioapic_id = 0; ioapic_id < nr_ioapics; ioapic_id++)

		suspend_ioapic(ioapic_id);



	return 0;

}



static int ioapic_resume(struct sys_device *dev)

static void resume_ioapic(int ioapic_id)

{

	struct IO_APIC_route_entry *entry;

	struct sysfs_ioapic_data *data;

	struct IO_APIC_route_entry *saved_data = ioapic_saved_data[ioapic_id];

	unsigned long flags;

	union IO_APIC_reg_00 reg_00;

	int i;



	data = container_of(dev, struct sysfs_ioapic_data, dev);

	entry = data->entry;

	if (!saved_data)

		return;



	raw_spin_lock_irqsave(&ioapic_lock, flags);

	reg_00.raw = io_apic_read(dev->id, 0);

	if (reg_00.bits.ID != mp_ioapics[dev->id].apicid) {

		reg_00.bits.ID = mp_ioapics[dev->id].apicid;

		io_apic_write(dev->id, 0, reg_00.raw);

	reg_00.raw = io_apic_read(ioapic_id, 0);

	if (reg_00.bits.ID != mp_ioapics[ioapic_id].apicid) {

		reg_00.bits.ID = mp_ioapics[ioapic_id].apicid;

		io_apic_write(ioapic_id, 0, reg_00.raw);

	}

	raw_spin_unlock_irqrestore(&ioapic_lock, flags);

	for (i = 0; i < nr_ioapic_registers[dev->id]; i++)

		ioapic_write_entry(dev->id, i, entry[i]);

	for (i = 0; i < nr_ioapic_registers[ioapic_id]; i++)

		ioapic_write_entry(ioapic_id, i, saved_data[i]);

}



	return 0;

static void ioapic_resume(void)

{

	int ioapic_id;



	for (ioapic_id = nr_ioapics - 1; ioapic_id >= 0; ioapic_id--)

		resume_ioapic(ioapic_id);

}



static struct sysdev_class ioapic_sysdev_class = {

	.name = "ioapic",

static struct syscore_ops ioapic_syscore_ops = {

	.suspend = ioapic_suspend,

	.resume = ioapic_resume,

};



static int __init ioapic_init_sysfs(void)

static int __init ioapic_init_ops(void)

{

	struct sys_device * dev;

	int i, size, error;



	error = sysdev_class_register(&ioapic_sysdev_class);

	if (error)

		return error;

	int i;



	for (i = 0; i < nr_ioapics; i++) {

		size = sizeof(struct sys_device) + nr_ioapic_registers[i]

		unsigned int size;



		size = nr_ioapic_registers[i]

			* sizeof(struct IO_APIC_route_entry);

		mp_ioapic_data[i] = kzalloc(size, GFP_KERNEL);

		if (!mp_ioapic_data[i]) {

			printk(KERN_ERR "Can't suspend/resume IOAPIC %d\n", i);

			continue;

		}

		dev = &mp_ioapic_data[i]->dev;

		dev->id = i;

		dev->cls = &ioapic_sysdev_class;

		error = sysdev_register(dev);

		if (error) {

			kfree(mp_ioapic_data[i]);

			mp_ioapic_data[i] = NULL;

			printk(KERN_ERR "Can't suspend/resume IOAPIC %d\n", i);

			continue;

		}

		ioapic_saved_data[i] = kzalloc(size, GFP_KERNEL);

		if (!ioapic_saved_data[i])

			pr_err("IOAPIC %d: suspend/resume impossible!\n", i);

	}



	register_syscore_ops(&ioapic_syscore_ops);



	return 0;

}



device_initcall(ioapic_init_sysfs);

device_initcall(ioapic_init_ops);



/*

 * Dynamic irq allocate and deallocation

arch/x86/kernel/cpu/mcheck/mce.c

+12 −9
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ 
#include <linux/percpu.h>

#include <linux/string.h>

#include <linux/sysdev.h>

#include <linux/syscore_ops.h>

#include <linux/delay.h>

#include <linux/ctype.h>

#include <linux/sched.h>
@@ -1749,14 +1750,14 @@ static int mce_disable_error_reporting(void) 
	return 0;

}



static int mce_suspend(struct sys_device *dev, pm_message_t state)

static int mce_suspend(void)

{

	return mce_disable_error_reporting();

}



static int mce_shutdown(struct sys_device *dev)

static void mce_shutdown(void)

{

	return mce_disable_error_reporting();

	mce_disable_error_reporting();

}



/*
@@ -1764,14 +1765,18 @@ static int mce_shutdown(struct sys_device *dev) 
 * Only one CPU is active at this time, the others get re-added later using

 * CPU hotplug:

 */

static int mce_resume(struct sys_device *dev)

static void mce_resume(void)

{

	__mcheck_cpu_init_generic();

	__mcheck_cpu_init_vendor(__this_cpu_ptr(&cpu_info));



	return 0;

}



static struct syscore_ops mce_syscore_ops = {

	.suspend	= mce_suspend,

	.shutdown	= mce_shutdown,

	.resume		= mce_resume,

};



static void mce_cpu_restart(void *data)

{

	del_timer_sync(&__get_cpu_var(mce_timer));
@@ -1808,9 +1813,6 @@ static void mce_enable_ce(void *all) 
}



static struct sysdev_class mce_sysclass = {

	.suspend	= mce_suspend,

	.shutdown	= mce_shutdown,

	.resume		= mce_resume,

	.name		= "machinecheck",

};
@@ -2139,6 +2141,7 @@ static __init int mcheck_init_device(void) 
			return err;

	}



	register_syscore_ops(&mce_syscore_ops);

	register_hotcpu_notifier(&mce_cpu_notifier);

	misc_register(&mce_log_device);