acpi_no_auto_ssdt [HW,ACPI] Disable automatic loading of SSDT
+ acpica_no_return_repair [HW, ACPI]
+ Disable AML predefined validation mechanism
+ This mechanism can repair the evaluation result to make
+ the return objects more ACPI specification compliant.
+ This option is useful for developers to identify the
+ root cause of an AML interpreter issue when the issue
+ has something to do with the repair mechanism.
+
acpi_os_name= [HW,ACPI] Tell ACPI BIOS the name of the OS
Format: To spoof as Windows 98: ="Microsoft Windows"
parameter will force ia64_sal_cache_flush to call
ia64_pal_cache_flush instead of SAL_CACHE_FLUSH.
+ forcepae [X86-32]
+ Forcefully enable Physical Address Extension (PAE).
+ Many Pentium M systems disable PAE but may have a
+ functionally usable PAE implementation.
+ Warning: use of this parameter will taint the kernel
+ and may cause unknown problems.
+
ftrace=[tracer]
[FTRACE] will set and start the specified tracer
as early as possible in order to facilitate early
IOAPICs that may be present in the system.
nokaslr [X86]
- Disable kernel base offset ASLR (Address Space
- Layout Randomization) if built into the kernel.
+ Disable kernel and module base offset ASLR (Address
+ Space Layout Randomization) if built into the kernel.
noautogroup Disable scheduler automatic task group creation.
F: drivers/platform/x86/acer-wmi.c
ACPI
W: https://01.org/linux-acpi
Q: https://patchwork.kernel.org/project/linux-acpi/list/
F: arch/arm/mach-footbridge/
ARM/FREESCALE IMX / MXC ARM ARCHITECTURE
-M: Shawn Guo <shawn.guo@linaro.org>
+M: Shawn Guo <shawn.guo@freescale.com>
S: Maintained
-T: git git://git.linaro.org/people/shawnguo/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git
F: arch/arm/mach-imx/
F: arch/arm/boot/dts/imx*
F: arch/arm/configs/imx*_defconfig
S: Supported
F: arch/arm/mach-u300/
+F: drivers/clocksource/timer-u300.c
F: drivers/i2c/busses/i2c-stu300.c
F: drivers/rtc/rtc-coh901331.c
F: drivers/watchdog/coh901327_wdt.c
F: include/net/bluetooth/
BONDING DRIVER
-M: Veaceslav Falico <vfalico@redhat.com>
+M: Jay Vosburgh <j.vosburgh@gmail.com>
+M: Veaceslav Falico <vfalico@gmail.com>
W: http://sourceforge.net/projects/bonding/
F: drivers/acpi/dock.c
DOCUMENTATION
-T: TBD
+T: quilt http://www.infradead.org/~rdunlap/Doc/patches/
S: Maintained
F: Documentation/
F: fs/freevxfs/
FREEZER
S: Supported
F: Documentation/power/freezing-of-tasks.txt
F: drivers/video/hgafb.c
HIBERNATION (aka Software Suspend, aka swsusp)
S: Supported
F: arch/x86/power/
W: http://www.intel.com/support/feedback.htm
W: http://e1000.sourceforge.net/
F: include/uapi/linux/netdevice.h
F: tools/net/
F: tools/testing/selftests/net/
+F: lib/random32.c
NETWORKING [IPv4/IPv6]
S: Supported
F: arch/s390/
F: drivers/s390/
-F: block/partitions/ibm.c
F: Documentation/s390/
F: Documentation/DocBook/s390*
+S390 COMMON I/O LAYER
+W: http://www.ibm.com/developerworks/linux/linux390/
+S: Supported
+F: drivers/s390/cio/
+
+S390 DASD DRIVER
+W: http://www.ibm.com/developerworks/linux/linux390/
+S: Supported
+F: drivers/s390/block/dasd*
+F: block/partitions/ibm.c
+
S390 NETWORK DRIVERS
S: Supported
F: drivers/s390/net/
+S390 PCI SUBSYSTEM
+W: http://www.ibm.com/developerworks/linux/linux390/
+S: Supported
+F: arch/s390/pci/
+F: drivers/pci/hotplug/s390_pci_hpc.c
+
S390 ZCRYPT DRIVER
F: drivers/sh/
SUSPEND TO RAM
S: Supported
F: Documentation/power/
select DCACHE_WORD_ACCESS
select GENERIC_CLOCKEVENTS
select GENERIC_CLOCKEVENTS_BROADCAST if SMP
+ select GENERIC_CPU_AUTOPROBE
select GENERIC_IOMAP
select GENERIC_IRQ_PROBE
select GENERIC_IRQ_SHOW
select GENERIC_TIME_VSYSCALL
select HARDIRQS_SW_RESEND
select HAVE_ARCH_JUMP_LABEL
+ select HAVE_ARCH_KGDB
select HAVE_ARCH_TRACEHOOK
select HAVE_DEBUG_BUGVERBOSE
select HAVE_DEBUG_KMEMLEAK
select HAVE_MEMBLOCK
select HAVE_PATA_PLATFORM
select HAVE_PERF_EVENTS
+ select HAVE_PERF_REGS
+ select HAVE_PERF_USER_STACK_DUMP
select IRQ_DOMAIN
select MODULES_USE_ELF_RELA
select NO_BOOTMEM
config TRACE_IRQFLAGS_SUPPORT
def_bool y
-config RWSEM_GENERIC_SPINLOCK
+config RWSEM_XCHGADD_ALGORITHM
def_bool y
config GENERIC_HWEIGHT
config GENERIC_CALIBRATE_DELAY
def_bool y
-config ZONE_DMA32
+config ZONE_DMA
def_bool y
config ARCH_DMA_ADDR_T_64BIT
If you don't know what to do here, say N.
+config SCHED_MC
+ bool "Multi-core scheduler support"
+ depends on SMP
+ help
+ Multi-core scheduler support improves the CPU scheduler's decision
+ making when dealing with multi-core CPU chips at a cost of slightly
+ increased overhead in some places. If unsure say N here.
+
+config SCHED_SMT
+ bool "SMT scheduler support"
+ depends on SMP
+ help
+ Improves the CPU scheduler's decision making when dealing with
+ MultiThreading at a cost of slightly increased overhead in some
+ places. If unsure say N here.
+
config NR_CPUS
int "Maximum number of CPUs (2-32)"
range 2 32
source "drivers/cpuidle/Kconfig"
+source "drivers/cpufreq/Kconfig"
+
endmenu
+ menu "Power management options"
+
+ source "kernel/power/Kconfig"
+
+ source "drivers/cpufreq/Kconfig"
+
+ endmenu
+
source "net/Kconfig"
source "drivers/Kconfig"
CONFIG_CRASH_DUMP=y
CONFIG_EFI_VARS=y
CONFIG_BINFMT_MISC=m
- CONFIG_ACPI_PROCFS=y
CONFIG_ACPI_BUTTON=m
CONFIG_ACPI_FAN=m
CONFIG_ACPI_DOCK=y
CONFIG_ACPI_PROCESSOR=m
-CONFIG_ACPI_CONTAINER=m
+CONFIG_ACPI_CONTAINER=y
CONFIG_HOTPLUG_PCI=y
-CONFIG_HOTPLUG_PCI_ACPI=m
+CONFIG_HOTPLUG_PCI_ACPI=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
ft->clock_tick_ref = cpu_data(cpu).clock_tick;
}
if ((val == CPUFREQ_PRECHANGE && freq->old < freq->new) ||
- (val == CPUFREQ_POSTCHANGE && freq->old > freq->new) ||
- (val == CPUFREQ_RESUMECHANGE)) {
+ (val == CPUFREQ_POSTCHANGE && freq->old > freq->new)) {
cpu_data(cpu).clock_tick =
cpufreq_scale(ft->clock_tick_ref,
ft->ref_freq,
irq_enter();
local_cpu_data().irq0_irqs++;
- kstat_incr_irqs_this_cpu(0, irq_to_desc(0));
+ kstat_incr_irq_this_cpu(0);
if (unlikely(!evt->event_handler)) {
printk(KERN_WARNING
# include <asm/proto.h>
#endif /* X86 */
- #define BAD_MADT_ENTRY(entry, end) ( \
- (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
- ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
-
#define PREFIX "ACPI: "
int acpi_noirq; /* skip ACPI IRQ initialization */
int nid;
nid = acpi_get_node(handle);
- if (nid == -1 || !node_online(nid))
- return;
- set_apicid_to_node(physid, nid);
- numa_set_node(cpu, nid);
+ if (nid != -1) {
+ set_apicid_to_node(physid, nid);
+ numa_set_node(cpu, nid);
+ }
#endif
}
dev->gtf_cache = NULL;
}
+ struct ata_acpi_hotplug_context {
+ struct acpi_hotplug_context hp;
+ union {
+ struct ata_port *ap;
+ struct ata_device *dev;
+ } data;
+ };
+
+ #define ata_hotplug_data(context) (container_of((context), struct ata_acpi_hotplug_context, hp)->data)
+
/**
* ata_dev_acpi_handle - provide the acpi_handle for an ata_device
* @dev: the acpi_handle returned will correspond to this device
ata_port_wait_eh(ap);
}
- static void ata_acpi_dev_notify_dock(acpi_handle handle, u32 event, void *data)
+ static int ata_acpi_dev_notify_dock(struct acpi_device *adev, u32 event)
{
- struct ata_device *dev = data;
-
+ struct ata_device *dev = ata_hotplug_data(adev->hp).dev;
ata_acpi_handle_hotplug(dev->link->ap, dev, event);
+ return 0;
}
- static void ata_acpi_ap_notify_dock(acpi_handle handle, u32 event, void *data)
+ static int ata_acpi_ap_notify_dock(struct acpi_device *adev, u32 event)
{
- struct ata_port *ap = data;
-
- ata_acpi_handle_hotplug(ap, NULL, event);
+ ata_acpi_handle_hotplug(ata_hotplug_data(adev->hp).ap, NULL, event);
+ return 0;
}
static void ata_acpi_uevent(struct ata_port *ap, struct ata_device *dev,
}
}
- static void ata_acpi_ap_uevent(acpi_handle handle, u32 event, void *data)
+ static void ata_acpi_ap_uevent(struct acpi_device *adev, u32 event)
{
- ata_acpi_uevent(data, NULL, event);
+ ata_acpi_uevent(ata_hotplug_data(adev->hp).ap, NULL, event);
}
- static void ata_acpi_dev_uevent(acpi_handle handle, u32 event, void *data)
+ static void ata_acpi_dev_uevent(struct acpi_device *adev, u32 event)
{
- struct ata_device *dev = data;
+ struct ata_device *dev = ata_hotplug_data(adev->hp).dev;
ata_acpi_uevent(dev->link->ap, dev, event);
}
- static const struct acpi_dock_ops ata_acpi_dev_dock_ops = {
- .handler = ata_acpi_dev_notify_dock,
- .uevent = ata_acpi_dev_uevent,
- };
-
- static const struct acpi_dock_ops ata_acpi_ap_dock_ops = {
- .handler = ata_acpi_ap_notify_dock,
- .uevent = ata_acpi_ap_uevent,
- };
-
/* bind acpi handle to pata port */
void ata_acpi_bind_port(struct ata_port *ap)
{
struct acpi_device *host_companion = ACPI_COMPANION(ap->host->dev);
+ struct acpi_device *adev;
+ struct ata_acpi_hotplug_context *context;
if (libata_noacpi || ap->flags & ATA_FLAG_ACPI_SATA || !host_companion)
return;
if (ata_acpi_gtm(ap, &ap->__acpi_init_gtm) == 0)
ap->pflags |= ATA_PFLAG_INIT_GTM_VALID;
- /* we might be on a docking station */
- register_hotplug_dock_device(ACPI_HANDLE(&ap->tdev),
- &ata_acpi_ap_dock_ops, ap, NULL, NULL);
+ adev = ACPI_COMPANION(&ap->tdev);
+ if (!adev || adev->hp)
+ return;
+
+ context = kzalloc(sizeof(*context), GFP_KERNEL);
+ if (!context)
+ return;
+
+ context->data.ap = ap;
+ acpi_initialize_hp_context(adev, &context->hp, ata_acpi_ap_notify_dock,
+ ata_acpi_ap_uevent);
}
void ata_acpi_bind_dev(struct ata_device *dev)
struct ata_port *ap = dev->link->ap;
struct acpi_device *port_companion = ACPI_COMPANION(&ap->tdev);
struct acpi_device *host_companion = ACPI_COMPANION(ap->host->dev);
- struct acpi_device *parent;
+ struct acpi_device *parent, *adev;
+ struct ata_acpi_hotplug_context *context;
u64 adr;
/*
}
acpi_preset_companion(&dev->tdev, parent, adr);
+ adev = ACPI_COMPANION(&dev->tdev);
+ if (!adev || adev->hp)
+ return;
+
+ context = kzalloc(sizeof(*context), GFP_KERNEL);
+ if (!context)
+ return;
- register_hotplug_dock_device(ata_dev_acpi_handle(dev),
- &ata_acpi_dev_dock_ops, dev, NULL, NULL);
+ context->data.dev = dev;
+ acpi_initialize_hp_context(adev, &context->hp, ata_acpi_dev_notify_dock,
+ ata_acpi_dev_uevent);
}
/**
ata_for_each_dev(dev, &ap->link, ALL) {
ata_acpi_clear_gtf(dev);
if (ata_dev_enabled(dev) &&
+ ata_dev_acpi_handle(dev) &&
ata_dev_get_GTF(dev, NULL) >= 0)
dev->flags |= ATA_DFLAG_ACPI_PENDING;
}
#include <linux/cpufreq.h>
#include <linux/module.h>
#include <linux/slab.h>
-#include <asm/cputime.h>
+#include <linux/cputime.h>
static spinlock_t cpufreq_stats_lock;
cpufreq_cpu_put(policy);
}
- static int __cpufreq_stats_create_table(struct cpufreq_policy *policy,
- struct cpufreq_frequency_table *table)
+ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy)
{
unsigned int i, j, count = 0, ret = 0;
struct cpufreq_stats *stat;
- struct cpufreq_policy *current_policy;
unsigned int alloc_size;
unsigned int cpu = policy->cpu;
+ struct cpufreq_frequency_table *table;
+
+ table = cpufreq_frequency_get_table(cpu);
+ if (unlikely(!table))
+ return 0;
+
if (per_cpu(cpufreq_stats_table, cpu))
return -EBUSY;
stat = kzalloc(sizeof(*stat), GFP_KERNEL);
if ((stat) == NULL)
return -ENOMEM;
- current_policy = cpufreq_cpu_get(cpu);
- if (current_policy == NULL) {
- ret = -EINVAL;
- goto error_get_fail;
- }
-
- ret = sysfs_create_group(¤t_policy->kobj, &stats_attr_group);
+ ret = sysfs_create_group(&policy->kobj, &stats_attr_group);
if (ret)
goto error_out;
stat->time_in_state = kzalloc(alloc_size, GFP_KERNEL);
if (!stat->time_in_state) {
ret = -ENOMEM;
- goto error_out;
+ goto error_alloc;
}
stat->freq_table = (unsigned int *)(stat->time_in_state + count);
stat->last_time = get_jiffies_64();
stat->last_index = freq_table_get_index(stat, policy->cur);
spin_unlock(&cpufreq_stats_lock);
- cpufreq_cpu_put(current_policy);
return 0;
+ error_alloc:
+ sysfs_remove_group(&policy->kobj, &stats_attr_group);
error_out:
- cpufreq_cpu_put(current_policy);
- error_get_fail:
kfree(stat);
per_cpu(cpufreq_stats_table, cpu) = NULL;
return ret;
static void cpufreq_stats_create_table(unsigned int cpu)
{
struct cpufreq_policy *policy;
- struct cpufreq_frequency_table *table;
/*
* "likely(!policy)" because normally cpufreq_stats will be registered
if (likely(!policy))
return;
- table = cpufreq_frequency_get_table(policy->cpu);
- if (likely(table))
- __cpufreq_stats_create_table(policy, table);
+ __cpufreq_stats_create_table(policy);
cpufreq_cpu_put(policy);
}
{
int ret = 0;
struct cpufreq_policy *policy = data;
- struct cpufreq_frequency_table *table;
- unsigned int cpu = policy->cpu;
if (val == CPUFREQ_UPDATE_POLICY_CPU) {
cpufreq_stats_update_policy_cpu(policy);
return 0;
}
- table = cpufreq_frequency_get_table(cpu);
- if (!table)
- return 0;
-
if (val == CPUFREQ_CREATE_POLICY)
- ret = __cpufreq_stats_create_table(policy, table);
+ ret = __cpufreq_stats_create_table(policy);
else if (val == CPUFREQ_REMOVE_POLICY)
__cpufreq_stats_free_table(policy);
time_end = ktime_get();
- local_irq_enable();
+ if (!cpuidle_state_is_coupled(dev, drv, entered_state))
+ local_irq_enable();
diff = ktime_to_us(ktime_sub(time_end, time_start));
if (diff > INT_MAX)
return 0;
}
- trace_cpu_idle_rcuidle(next_state, dev->cpu);
-
broadcast = !!(drv->states[next_state].flags & CPUIDLE_FLAG_TIMER_STOP);
- if (broadcast)
- clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu);
+ if (broadcast &&
+ clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu))
+ return -EBUSY;
+
+
+ trace_cpu_idle_rcuidle(next_state, dev->cpu);
if (cpuidle_state_is_coupled(dev, drv, next_state))
entered_state = cpuidle_enter_state_coupled(dev, drv,
else
entered_state = cpuidle_enter_state(dev, drv, next_state);
+ trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, dev->cpu);
+
if (broadcast)
clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
- trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, dev->cpu);
-
/* give the governor an opportunity to reflect on the outcome */
if (cpuidle_curr_governor->reflect)
cpuidle_curr_governor->reflect(dev, entered_state);
projects / linux.git / commitdiff