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-rw-r--r--Documentation/power/runtime_pm.txt14
-rw-r--r--arch/ia64/hp/common/sba_iommu.c2
-rw-r--r--arch/ia64/include/asm/pci.h2
-rw-r--r--arch/ia64/pci/pci.c6
-rw-r--r--arch/ia64/sn/kernel/io_acpi_init.c4
-rw-r--r--arch/x86/include/asm/pci.h2
-rw-r--r--arch/x86/include/uapi/asm/msr-index.h2
-rw-r--r--arch/x86/pci/acpi.c4
-rw-r--r--drivers/acpi/Kconfig11
-rw-r--r--drivers/acpi/ac.c15
-rw-r--r--drivers/acpi/acpi_lpss.c9
-rw-r--r--drivers/acpi/acpi_platform.c2
-rw-r--r--drivers/acpi/blacklist.c35
-rw-r--r--drivers/acpi/device_pm.c14
-rw-r--r--drivers/acpi/ec.c3
-rw-r--r--drivers/acpi/glue.c53
-rw-r--r--drivers/acpi/pci_root.c1
-rw-r--r--drivers/acpi/scan.c14
-rw-r--r--drivers/acpi/video.c87
-rw-r--r--drivers/ata/libata-acpi.c4
-rw-r--r--drivers/base/platform.c4
-rw-r--r--drivers/base/power/main.c3
-rw-r--r--drivers/cpufreq/cpufreq_conservative.c3
-rw-r--r--drivers/cpufreq/cpufreq_governor.c4
-rw-r--r--drivers/cpufreq/omap-cpufreq.c1
-rw-r--r--drivers/gpio/gpiolib.c1
-rw-r--r--drivers/gpu/drm/i915/intel_acpi.c2
-rw-r--r--drivers/gpu/drm/i915/intel_opregion.c2
-rw-r--r--drivers/gpu/drm/nouveau/core/subdev/mxm/base.c2
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_acpi.c6
-rw-r--r--drivers/gpu/drm/radeon/radeon_acpi.c8
-rw-r--r--drivers/gpu/drm/radeon/radeon_atpx_handler.c7
-rw-r--r--drivers/gpu/drm/radeon/radeon_bios.c2
-rw-r--r--drivers/hid/i2c-hid/i2c-hid.c2
-rw-r--r--drivers/i2c/i2c-core.c25
-rw-r--r--drivers/ide/ide-acpi.c5
-rw-r--r--drivers/idle/intel_idle.c24
-rw-r--r--drivers/mmc/core/sdio_bus.c3
-rw-r--r--drivers/pci/hotplug/acpi_pcihp.c2
-rw-r--r--drivers/pci/hotplug/acpiphp.h1
-rw-r--r--drivers/pci/hotplug/pciehp_acpi.c4
-rw-r--r--drivers/pci/hotplug/sgi_hotplug.c8
-rw-r--r--drivers/pci/ioapic.c2
-rw-r--r--drivers/pci/pci-acpi.c6
-rw-r--r--drivers/pci/pci-label.c6
-rw-r--r--drivers/platform/x86/apple-gmux.c2
-rw-r--r--drivers/pnp/pnpacpi/core.c10
-rw-r--r--drivers/spi/spi.c19
-rw-r--r--drivers/usb/core/hub.c2
-rw-r--r--drivers/usb/core/usb-acpi.c4
-rw-r--r--drivers/xen/pci.c6
-rw-r--r--include/acpi/acpi_bus.h2
-rw-r--r--include/linux/acpi.h23
-rw-r--r--include/linux/device.h12
-rw-r--r--include/linux/pci-acpi.h4
-rw-r--r--kernel/power/snapshot.c3
-rw-r--r--kernel/power/user.c1
-rw-r--r--tools/power/x86/turbostat/turbostat.c197
58 files changed, 374 insertions, 328 deletions
diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt
index 0f54333b0ff2..b6ce00b2be9a 100644
--- a/Documentation/power/runtime_pm.txt
+++ b/Documentation/power/runtime_pm.txt
@@ -547,13 +547,11 @@ helper functions described in Section 4. In that case, pm_runtime_resume()
should be used. Of course, for this purpose the device's runtime PM has to be
enabled earlier by calling pm_runtime_enable().
-If the device bus type's or driver's ->probe() callback runs
-pm_runtime_suspend() or pm_runtime_idle() or their asynchronous counterparts,
-they will fail returning -EAGAIN, because the device's usage counter is
-incremented by the driver core before executing ->probe(). Still, it may be
-desirable to suspend the device as soon as ->probe() has finished, so the driver
-core uses pm_runtime_put_sync() to invoke the subsystem-level idle callback for
-the device at that time.
+It may be desirable to suspend the device once ->probe() has finished.
+Therefore the driver core uses the asyncronous pm_request_idle() to submit a
+request to execute the subsystem-level idle callback for the device at that
+time. A driver that makes use of the runtime autosuspend feature, may want to
+update the last busy mark before returning from ->probe().
Moreover, the driver core prevents runtime PM callbacks from racing with the bus
notifier callback in __device_release_driver(), which is necessary, because the
@@ -656,7 +654,7 @@ out the following operations:
__pm_runtime_disable() with 'false' as the second argument for every device
right before executing the subsystem-level .suspend_late() callback for it.
- * During system resume it calls pm_runtime_enable() and pm_runtime_put_sync()
+ * During system resume it calls pm_runtime_enable() and pm_runtime_put()
for every device right after executing the subsystem-level .resume_early()
callback and right after executing the subsystem-level .resume() callback
for it, respectively.
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index d43daf192b21..4c530a82fc46 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -1992,7 +1992,7 @@ sba_connect_bus(struct pci_bus *bus)
if (PCI_CONTROLLER(bus)->iommu)
return;
- handle = PCI_CONTROLLER(bus)->acpi_handle;
+ handle = acpi_device_handle(PCI_CONTROLLER(bus)->companion);
if (!handle)
return;
diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h
index 80775f55f03f..71fbaaa495cc 100644
--- a/arch/ia64/include/asm/pci.h
+++ b/arch/ia64/include/asm/pci.h
@@ -95,7 +95,7 @@ struct iospace_resource {
};
struct pci_controller {
- void *acpi_handle;
+ struct acpi_device *companion;
void *iommu;
int segment;
int node; /* nearest node with memory or -1 for global allocation */
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 2326790b7d8b..9e4938d8ca4d 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -436,9 +436,9 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
if (!controller)
return NULL;
- controller->acpi_handle = device->handle;
+ controller->companion = device;
- pxm = acpi_get_pxm(controller->acpi_handle);
+ pxm = acpi_get_pxm(device->handle);
#ifdef CONFIG_NUMA
if (pxm >= 0)
controller->node = pxm_to_node(pxm);
@@ -489,7 +489,7 @@ int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
{
struct pci_controller *controller = bridge->bus->sysdata;
- ACPI_HANDLE_SET(&bridge->dev, controller->acpi_handle);
+ ACPI_COMPANION_SET(&bridge->dev, controller->companion);
return 0;
}
diff --git a/arch/ia64/sn/kernel/io_acpi_init.c b/arch/ia64/sn/kernel/io_acpi_init.c
index b1725398b5af..0640739cc20c 100644
--- a/arch/ia64/sn/kernel/io_acpi_init.c
+++ b/arch/ia64/sn/kernel/io_acpi_init.c
@@ -132,7 +132,7 @@ sn_get_bussoft_ptr(struct pci_bus *bus)
struct acpi_resource_vendor_typed *vendor;
- handle = PCI_CONTROLLER(bus)->acpi_handle;
+ handle = acpi_device_handle(PCI_CONTROLLER(bus)->companion);
status = acpi_get_vendor_resource(handle, METHOD_NAME__CRS,
&sn_uuid, &buffer);
if (ACPI_FAILURE(status)) {
@@ -360,7 +360,7 @@ sn_acpi_get_pcidev_info(struct pci_dev *dev, struct pcidev_info **pcidev_info,
acpi_status status;
struct acpi_buffer name_buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- rootbus_handle = PCI_CONTROLLER(dev)->acpi_handle;
+ rootbus_handle = acpi_device_handle(PCI_CONTROLLER(dev)->companion);
status = acpi_evaluate_integer(rootbus_handle, METHOD_NAME__SEG, NULL,
&segment);
if (ACPI_SUCCESS(status)) {
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 7d7443283a9d..947b5c417e83 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -15,7 +15,7 @@ struct pci_sysdata {
int domain; /* PCI domain */
int node; /* NUMA node */
#ifdef CONFIG_ACPI
- void *acpi; /* ACPI-specific data */
+ struct acpi_device *companion; /* ACPI companion device */
#endif
#ifdef CONFIG_X86_64
void *iommu; /* IOMMU private data */
diff --git a/arch/x86/include/uapi/asm/msr-index.h b/arch/x86/include/uapi/asm/msr-index.h
index b93e09a0fa21..37813b5ddc37 100644
--- a/arch/x86/include/uapi/asm/msr-index.h
+++ b/arch/x86/include/uapi/asm/msr-index.h
@@ -147,6 +147,8 @@
#define MSR_PP1_ENERGY_STATUS 0x00000641
#define MSR_PP1_POLICY 0x00000642
+#define MSR_CORE_C1_RES 0x00000660
+
#define MSR_AMD64_MC0_MASK 0xc0010044
#define MSR_IA32_MCx_CTL(x) (MSR_IA32_MC0_CTL + 4*(x))
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 7fb24e53d4c8..4f25ec077552 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -518,7 +518,7 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
sd = &info->sd;
sd->domain = domain;
sd->node = node;
- sd->acpi = device->handle;
+ sd->companion = device;
/*
* Maybe the desired pci bus has been already scanned. In such case
* it is unnecessary to scan the pci bus with the given domain,busnum.
@@ -589,7 +589,7 @@ int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
{
struct pci_sysdata *sd = bridge->bus->sysdata;
- ACPI_HANDLE_SET(&bridge->dev, sd->acpi);
+ ACPI_COMPANION_SET(&bridge->dev, sd->companion);
return 0;
}
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index c95df0b8c880..5d9248526d78 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -235,17 +235,6 @@ config ACPI_INITRD_TABLE_OVERRIDE
initrd, therefore it's safe to say Y.
See Documentation/acpi/initrd_table_override.txt for details
-config ACPI_BLACKLIST_YEAR
- int "Disable ACPI for systems before Jan 1st this year" if X86_32
- default 0
- help
- Enter a 4-digit year, e.g., 2001, to disable ACPI by default
- on platforms with DMI BIOS date before January 1st that year.
- "acpi=force" can be used to override this mechanism.
-
- Enter 0 to disable this mechanism and allow ACPI to
- run by default no matter what the year. (default)
-
config ACPI_DEBUG
bool "Debug Statements"
default n
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index b9f0d5f4bba5..8711e3797165 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -56,7 +56,6 @@ static int ac_sleep_before_get_state_ms;
struct acpi_ac {
struct power_supply charger;
- struct acpi_device *adev;
struct platform_device *pdev;
unsigned long long state;
};
@@ -70,8 +69,9 @@ struct acpi_ac {
static int acpi_ac_get_state(struct acpi_ac *ac)
{
acpi_status status;
+ acpi_handle handle = ACPI_HANDLE(&ac->pdev->dev);
- status = acpi_evaluate_integer(ac->adev->handle, "_PSR", NULL,
+ status = acpi_evaluate_integer(handle, "_PSR", NULL,
&ac->state);
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
@@ -119,6 +119,7 @@ static enum power_supply_property ac_props[] = {
static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data)
{
struct acpi_ac *ac = data;
+ struct acpi_device *adev;
if (!ac)
return;
@@ -141,10 +142,11 @@ static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data)
msleep(ac_sleep_before_get_state_ms);
acpi_ac_get_state(ac);
- acpi_bus_generate_netlink_event(ac->adev->pnp.device_class,
+ adev = ACPI_COMPANION(&ac->pdev->dev);
+ acpi_bus_generate_netlink_event(adev->pnp.device_class,
dev_name(&ac->pdev->dev),
event, (u32) ac->state);
- acpi_notifier_call_chain(ac->adev, event, (u32) ac->state);
+ acpi_notifier_call_chain(adev, event, (u32) ac->state);
kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
}
@@ -178,8 +180,8 @@ static int acpi_ac_probe(struct platform_device *pdev)
if (!pdev)
return -EINVAL;
- result = acpi_bus_get_device(ACPI_HANDLE(&pdev->dev), &adev);
- if (result)
+ adev = ACPI_COMPANION(&pdev->dev);
+ if (!adev)
return -ENODEV;
ac = kzalloc(sizeof(struct acpi_ac), GFP_KERNEL);
@@ -188,7 +190,6 @@ static int acpi_ac_probe(struct platform_device *pdev)
strcpy(acpi_device_name(adev), ACPI_AC_DEVICE_NAME);
strcpy(acpi_device_class(adev), ACPI_AC_CLASS);
- ac->adev = adev;
ac->pdev = pdev;
platform_set_drvdata(pdev, ac);
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index d3961014aad7..6745fe137b9e 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -163,6 +163,15 @@ static const struct acpi_device_id acpi_lpss_device_ids[] = {
{ "80860F41", (unsigned long)&byt_i2c_dev_desc },
{ "INT33B2", },
+ { "INT3430", (unsigned long)&lpt_dev_desc },
+ { "INT3431", (unsigned long)&lpt_dev_desc },
+ { "INT3432", (unsigned long)&lpt_dev_desc },
+ { "INT3433", (unsigned long)&lpt_dev_desc },
+ { "INT3434", (unsigned long)&lpt_uart_dev_desc },
+ { "INT3435", (unsigned long)&lpt_uart_dev_desc },
+ { "INT3436", (unsigned long)&lpt_sdio_dev_desc },
+ { "INT3437", },
+
{ }
};
diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 8a4cfc7e71f0..dbfe49e5fd63 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -111,7 +111,7 @@ int acpi_create_platform_device(struct acpi_device *adev,
pdevinfo.id = -1;
pdevinfo.res = resources;
pdevinfo.num_res = count;
- pdevinfo.acpi_node.handle = adev->handle;
+ pdevinfo.acpi_node.companion = adev;
pdev = platform_device_register_full(&pdevinfo);
if (IS_ERR(pdev)) {
dev_err(&adev->dev, "platform device creation failed: %ld\n",
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index fb848378d582..078c4f7fe2dd 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -75,39 +75,6 @@ static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
{""}
};
-#if CONFIG_ACPI_BLACKLIST_YEAR
-
-static int __init blacklist_by_year(void)
-{
- int year;
-
- /* Doesn't exist? Likely an old system */
- if (!dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL)) {
- printk(KERN_ERR PREFIX "no DMI BIOS year, "
- "acpi=force is required to enable ACPI\n" );
- return 1;
- }
- /* 0? Likely a buggy new BIOS */
- if (year == 0) {
- printk(KERN_ERR PREFIX "DMI BIOS year==0, "
- "assuming ACPI-capable machine\n" );
- return 0;
- }
- if (year < CONFIG_ACPI_BLACKLIST_YEAR) {
- printk(KERN_ERR PREFIX "BIOS age (%d) fails cutoff (%d), "
- "acpi=force is required to enable ACPI\n",
- year, CONFIG_ACPI_BLACKLIST_YEAR);
- return 1;
- }
- return 0;
-}
-#else
-static inline int blacklist_by_year(void)
-{
- return 0;
-}
-#endif
-
int __init acpi_blacklisted(void)
{
int i = 0;
@@ -166,8 +133,6 @@ int __init acpi_blacklisted(void)
}
}
- blacklisted += blacklist_by_year();
-
dmi_check_system(acpi_osi_dmi_table);
return blacklisted;
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index d42b2fb5a7e9..b3480cf7db1a 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -22,16 +22,12 @@
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
-#include <linux/device.h>
+#include <linux/acpi.h>
#include <linux/export.h>
#include <linux/mutex.h>
#include <linux/pm_qos.h>
#include <linux/pm_runtime.h>
-#include <acpi/acpi.h>
-#include <acpi/acpi_bus.h>
-#include <acpi/acpi_drivers.h>
-
#include "internal.h"
#define _COMPONENT ACPI_POWER_COMPONENT
@@ -548,7 +544,7 @@ static int acpi_dev_pm_get_state(struct device *dev, struct acpi_device *adev,
*/
int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p, int d_max_in)
{
- acpi_handle handle = DEVICE_ACPI_HANDLE(dev);
+ acpi_handle handle = ACPI_HANDLE(dev);
struct acpi_device *adev;
int ret, d_min, d_max;
@@ -656,7 +652,7 @@ int acpi_pm_device_run_wake(struct device *phys_dev, bool enable)
if (!device_run_wake(phys_dev))
return -EINVAL;
- handle = DEVICE_ACPI_HANDLE(phys_dev);
+ handle = ACPI_HANDLE(phys_dev);
if (!handle || acpi_bus_get_device(handle, &adev)) {
dev_dbg(phys_dev, "ACPI handle without context in %s!\n",
__func__);
@@ -700,7 +696,7 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
if (!device_can_wakeup(dev))
return -EINVAL;
- handle = DEVICE_ACPI_HANDLE(dev);
+ handle = ACPI_HANDLE(dev);
if (!handle || acpi_bus_get_device(handle, &adev)) {
dev_dbg(dev, "ACPI handle without context in %s!\n", __func__);
return -ENODEV;
@@ -722,7 +718,7 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
*/
struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
{
- acpi_handle handle = DEVICE_ACPI_HANDLE(dev);
+ acpi_handle handle = ACPI_HANDLE(dev);
struct acpi_device *adev;
return handle && !acpi_bus_get_device(handle, &adev) ? adev : NULL;
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index d5309fd49458..ba5b56db9d27 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -173,9 +173,10 @@ static void start_transaction(struct acpi_ec *ec)
static void advance_transaction(struct acpi_ec *ec, u8 status)
{
unsigned long flags;
- struct transaction *t = ec->curr;
+ struct transaction *t;
spin_lock_irqsave(&ec->lock, flags);
+ t = ec->curr;
if (!t)
goto unlock;
if (t->wlen > t->wi) {
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 10f0f40587bb..a22a295edb69 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -197,30 +197,28 @@ static void acpi_physnode_link_name(char *buf, unsigned int node_id)
int acpi_bind_one(struct device *dev, acpi_handle handle)
{
- struct acpi_device *acpi_dev;
- acpi_status status;
+ struct acpi_device *acpi_dev = NULL;
struct acpi_device_physical_node *physical_node, *pn;
char physical_node_name[PHYSICAL_NODE_NAME_SIZE];
struct list_head *physnode_list;
unsigned int node_id;
int retval = -EINVAL;
- if (ACPI_HANDLE(dev)) {
+ if (ACPI_COMPANION(dev)) {
if (handle) {
- dev_warn(dev, "ACPI handle is already set\n");
+ dev_warn(dev, "ACPI companion already set\n");
return -EINVAL;
} else {
- handle = ACPI_HANDLE(dev);
+ acpi_dev = ACPI_COMPANION(dev);
}
+ } else {
+ acpi_bus_get_device(handle, &acpi_dev);
}
- if (!handle)
+ if (!acpi_dev)
return -EINVAL;
+ get_device(&acpi_dev->dev);
get_device(dev);
- status = acpi_bus_get_device(handle, &acpi_dev);
- if (ACPI_FAILURE(status))
- goto err;
-
physical_node = kzalloc(sizeof(*physical_node), GFP_KERNEL);
if (!physical_node) {
retval = -ENOMEM;
@@ -242,10 +240,11 @@ int acpi_bind_one(struct device *dev, acpi_handle handle)
dev_warn(dev, "Already associated with ACPI node\n");
kfree(physical_node);
- if (ACPI_HANDLE(dev) != handle)
+ if (ACPI_COMPANION(dev) != acpi_dev)
goto err;
put_device(dev);
+ put_device(&acpi_dev->dev);
return 0;
}
if (pn->node_id == node_id) {
@@ -259,8 +258,8 @@ int acpi_bind_one(struct device *dev, acpi_handle handle)
list_add(&physical_node->node, physnode_list);
acpi_dev->physical_node_count++;
- if (!ACPI_HANDLE(dev))
- ACPI_HANDLE_SET(dev, acpi_dev->handle);
+ if (!ACPI_COMPANION(dev))
+ ACPI_COMPANION_SET(dev, acpi_dev);
acpi_physnode_link_name(physical_node_name, node_id);
retval = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj,
@@ -283,27 +282,21 @@ int acpi_bind_one(struct device *dev, acpi_handle handle)
return 0;
err:
- ACPI_HANDLE_SET(dev, NULL);
+ ACPI_COMPANION_SET(dev, NULL);
put_device(dev);
+ put_device(&acpi_dev->dev);
return retval;
}
EXPORT_SYMBOL_GPL(acpi_bind_one);
int acpi_unbind_one(struct device *dev)
{
+ struct acpi_device *acpi_dev = ACPI_COMPANION(dev);
struct acpi_device_physical_node *entry;
- struct acpi_device *acpi_dev;
- acpi_status status;
- if (!ACPI_HANDLE(dev))
+ if (!acpi_dev)
return 0;
- status = acpi_bus_get_device(ACPI_HANDLE(dev), &acpi_dev);
- if (ACPI_FAILURE(status)) {
- dev_err(dev, "Oops, ACPI handle corrupt in %s()\n", __func__);
- return -EINVAL;
- }
-
mutex_lock(&acpi_dev->physical_node_lock);
list_for_each_entry(entry, &acpi_dev->physical_node_list, node)
@@ -316,9 +309,10 @@ int acpi_unbind_one(struct device *dev)
acpi_physnode_link_name(physnode_name, entry->node_id);
sysfs_remove_link(&acpi_dev->dev.kobj, physnode_name);
sysfs_remove_link(&dev->kobj, "firmware_node");
- ACPI_HANDLE_SET(dev, NULL);
- /* acpi_bind_one() increase refcnt by one. */
+ ACPI_COMPANION_SET(dev, NULL);
+ /* Drop references taken by acpi_bind_one(). */
put_device(dev);
+ put_device(&acpi_dev->dev);
kfree(entry);
break;
}
@@ -328,6 +322,15 @@ int acpi_unbind_one(struct device *dev)
}
EXPORT_SYMBOL_GPL(acpi_unbind_one);
+void acpi_preset_companion(struct device *dev, acpi_handle parent, u64 addr)
+{
+ struct acpi_device *adev;
+
+ if (!acpi_bus_get_device(acpi_get_child(parent, addr), &adev))
+ ACPI_COMPANION_SET(dev, adev);
+}
+EXPORT_SYMBOL_GPL(acpi_preset_companion);
+
static int acpi_platform_notify(struct device *dev)
{
struct acpi_bus_type *type = acpi_get_bus_type(dev);
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 56f05869b08d..0703bff5e60e 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -575,6 +575,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
dev_err(&device->dev,
"Bus %04x:%02x not present in PCI namespace\n",
root->segment, (unsigned int)root->secondary.start);
+ device->driver_data = NULL;
result = -ENODEV;
goto end;
}
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 55f9dedbbf9f..15daa21fcd05 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -289,24 +289,17 @@ void acpi_bus_device_eject(void *data, u32 ost_src)
{
struct acpi_device *device = data;
acpi_handle handle = device->handle;
- struct acpi_scan_handler *handler;
u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE;
int error;
lock_device_hotplug();
mutex_lock(&acpi_scan_lock);
- handler = device->handler;
- if (!handler || !handler->hotplug.enabled) {
- put_device(&device->dev);
- goto err_support;
- }
-
if (ost_src == ACPI_NOTIFY_EJECT_REQUEST)
acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST,
ACPI_OST_SC_EJECT_IN_PROGRESS, NULL);
- if (handler->hotplug.mode == AHM_CONTAINER)
+ if (device->handler && device->handler->hotplug.mode == AHM_CONTAINER)
kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
error = acpi_scan_hot_remove(device);
@@ -411,8 +404,7 @@ static void acpi_hotplug_notify_cb(acpi_handle handle, u32 type, void *data)
break;
case ACPI_NOTIFY_EJECT_REQUEST:
acpi_handle_debug(handle, "ACPI_NOTIFY_EJECT_REQUEST event\n");
- status = acpi_bus_get_device(handle, &adev);
- if (ACPI_FAILURE(status))
+ if (acpi_bus_get_device(handle, &adev))
goto err_out;
get_device(&adev->dev);
@@ -1997,6 +1989,7 @@ static int acpi_bus_scan_fixed(void)
if (result)
return result;
+ device->flags.match_driver = true;
result = device_attach(&device->dev);
if (result < 0)
return result;
@@ -2013,6 +2006,7 @@ static int acpi_bus_scan_fixed(void)
if (result)
return result;
+ device->flags.match_driver = true;
result = device_attach(&device->dev);
}
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 18dbdff4656e..995e91bcb97b 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -82,13 +82,6 @@ static bool allow_duplicates;
module_param(allow_duplicates, bool, 0644);
/*
- * Some BIOSes claim they use minimum backlight at boot,
- * and this may bring dimming screen after boot
- */
-static bool use_bios_initial_backlight = 1;
-module_param(use_bios_initial_backlight, bool, 0644);
-
-/*
* For Windows 8 systems: if set ture and the GPU driver has
* registered a backlight interface, skip registering ACPI video's.
*/
@@ -406,12 +399,6 @@ static int __init video_set_bqc_offset(const struct dmi_system_id *d)
return 0;
}
-static int video_ignore_initial_backlight(const struct dmi_system_id *d)
-{
- use_bios_initial_backlight = 0;
- return 0;
-}
-
static struct dmi_system_id video_dmi_table[] __initdata = {
/*
* Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121
@@ -456,54 +443,6 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720"),
},
},
- {
- .callback = video_ignore_initial_backlight,
- .ident = "HP Folio 13-2000",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
- DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13 - 2000 Notebook PC"),
- },
- },
- {
- .callback = video_ignore_initial_backlight,
- .ident = "Fujitsu E753",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "FUJITSU"),
- DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E753"),
- },
- },
- {
- .callback = video_ignore_initial_backlight,
- .ident = "HP Pavilion dm4",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
- DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dm4 Notebook PC"),
- },
- },
- {
- .callback = video_ignore_initial_backlight,
- .ident = "HP Pavilion g6 Notebook PC",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
- DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion g6 Notebook PC"),
- },
- },
- {
- .callback = video_ignore_initial_backlight,
- .ident = "HP 1000 Notebook PC",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
- DMI_MATCH(DMI_PRODUCT_NAME, "HP 1000 Notebook PC"),
- },
- },
- {
- .callback = video_ignore_initial_backlight,
- .ident = "HP Pavilion m4",
- .matches = {
- DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
- DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion m4 Notebook PC"),
- },
- },
{}
};
@@ -839,20 +778,18 @@ acpi_video_init_brightness(struct acpi_video_device *device)
if (!device->cap._BQC)
goto set_level;
- if (use_bios_initial_backlight) {
- level = acpi_video_bqc_value_to_level(device, level_old);
- /*
- * On some buggy laptops, _BQC returns an uninitialized
- * value when invoked for the first time, i.e.
- * level_old is invalid (no matter whether it's a level
- * or an index). Set the backlight to max_level in this case.
- */
- for (i = 2; i < br->count; i++)
- if (level == br->levels[i])
- break;
- if (i == br->count || !level)
- level = max_level;
- }
+ level = acpi_video_bqc_value_to_level(device, level_old);
+ /*
+ * On some buggy laptops, _BQC returns an uninitialized
+ * value when invoked for the first time, i.e.
+ * level_old is invalid (no matter whether it's a level
+ * or an index). Set the backlight to max_level in this case.
+ */
+ for (i = 2; i < br->count; i++)
+ if (level == br->levels[i])
+ break;
+ if (i == br->count || !level)
+ level = max_level;
set_level:
result = acpi_video_device_lcd_set_level(device, level);
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c
index ab714d2ad978..4372cfa883c9 100644
--- a/drivers/ata/libata-acpi.c
+++ b/drivers/ata/libata-acpi.c
@@ -185,7 +185,7 @@ void ata_acpi_bind_port(struct ata_port *ap)
if (libata_noacpi || ap->flags & ATA_FLAG_ACPI_SATA || !host_handle)
return;
- ACPI_HANDLE_SET(&ap->tdev, acpi_get_child(host_handle, ap->port_no));
+ acpi_preset_companion(&ap->tdev, host_handle, ap->port_no);
if (ata_acpi_gtm(ap, &ap->__acpi_init_gtm) == 0)
ap->pflags |= ATA_PFLAG_INIT_GTM_VALID;
@@ -222,7 +222,7 @@ void ata_acpi_bind_dev(struct ata_device *dev)
parent_handle = port_handle;
}
- ACPI_HANDLE_SET(&dev->tdev, acpi_get_child(parent_handle, adr));
+ acpi_preset_companion(&dev->tdev, parent_handle, adr);
register_hotplug_dock_device(ata_dev_acpi_handle(dev),
&ata_acpi_dev_dock_ops, dev, NULL, NULL);
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 47051cd25113..3a94b799f166 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -432,7 +432,7 @@ struct platform_device *platform_device_register_full(
goto err_alloc;
pdev->dev.parent = pdevinfo->parent;
- ACPI_HANDLE_SET(&pdev->dev, pdevinfo->acpi_node.handle);
+ ACPI_COMPANION_SET(&pdev->dev, pdevinfo->acpi_node.companion);
if (pdevinfo->dma_mask) {
/*
@@ -463,7 +463,7 @@ struct platform_device *platform_device_register_full(
ret = platform_device_add(pdev);
if (ret) {
err:
- ACPI_HANDLE_SET(&pdev->dev, NULL);
+ ACPI_COMPANION_SET(&pdev->dev, NULL);
kfree(pdev->dev.dma_mask);
err_alloc:
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index c12e9b9556be..1b41fca3d65a 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -1350,6 +1350,9 @@ static int device_prepare(struct device *dev, pm_message_t state)
device_unlock(dev);
+ if (error)
+ pm_runtime_put(dev);
+
return error;
}
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index 218460fcd2e4..25a70d06c5bf 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -68,6 +68,9 @@ static void cs_check_cpu(int cpu, unsigned int load)
dbs_info->requested_freq += get_freq_target(cs_tuners, policy);
+ if (dbs_info->requested_freq > policy->max)
+ dbs_info->requested_freq = policy->max;
+
__cpufreq_driver_target(policy, dbs_info->requested_freq,
CPUFREQ_RELATION_H);
return;
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 0806c31e5764..e6be63561fa6 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -328,10 +328,6 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
dbs_data->cdata->gov_dbs_timer);
}
- /*
- * conservative does not implement micro like ondemand
- * governor, thus we are bound to jiffes/HZ
- */
if (dbs_data->cdata->governor == GOV_CONSERVATIVE) {
cs_dbs_info->down_skip = 0;
cs_dbs_info->enable = 1;
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index be6d14307aa8..a0acd0bfba40 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -53,6 +53,7 @@ static unsigned int omap_getspeed(unsigned int cpu)
static int omap_target(struct cpufreq_policy *policy, unsigned int index)
{
+ int r, ret;
struct dev_pm_opp *opp;
unsigned long freq, volt = 0, volt_old = 0, tol = 0;
unsigned int old_freq, new_freq;
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 7dd446150294..4e10b10d3ddd 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -13,6 +13,7 @@
#include <linux/acpi_gpio.h>
#include <linux/idr.h>
#include <linux/slab.h>
+#include <linux/acpi.h>
#define CREATE_TRACE_POINTS
#include <trace/events/gpio.h>
diff --git a/drivers/gpu/drm/i915/intel_acpi.c b/drivers/gpu/drm/i915/intel_acpi.c
index 43959edd4291..dfff0907f70e 100644
--- a/drivers/gpu/drm/i915/intel_acpi.c
+++ b/drivers/gpu/drm/i915/intel_acpi.c
@@ -196,7 +196,7 @@ static bool intel_dsm_pci_probe(struct pci_dev *pdev)
acpi_handle dhandle;
int ret;
- dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
+ dhandle = ACPI_HANDLE(&pdev->dev);
if (!dhandle)
return false;
diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c
index 1b2f41c3f191..6d69a9bad865 100644
--- a/drivers/gpu/drm/i915/intel_opregion.c
+++ b/drivers/gpu/drm/i915/intel_opregion.c
@@ -638,7 +638,7 @@ static void intel_didl_outputs(struct drm_device *dev)
u32 temp;
int i = 0;
- handle = DEVICE_ACPI_HANDLE(&dev->pdev->dev);
+ handle = ACPI_HANDLE(&dev->pdev->dev);
if (!handle || acpi_bus_get_device(handle, &acpi_dev))
return;
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c b/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c
index e286e132c7e7..129120473f6c 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c
@@ -116,7 +116,7 @@ mxm_shadow_dsm(struct nouveau_mxm *mxm, u8 version)
acpi_handle handle;
int ret;
- handle = DEVICE_ACPI_HANDLE(&device->pdev->dev);
+ handle = ACPI_HANDLE(&device->pdev->dev);
if (!handle)
return false;
diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c
index 07273a2ae62f..95c740454049 100644
--- a/drivers/gpu/drm/nouveau/nouveau_acpi.c
+++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c
@@ -256,7 +256,7 @@ static int nouveau_dsm_pci_probe(struct pci_dev *pdev)
acpi_handle dhandle;
int retval = 0;
- dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
+ dhandle = ACPI_HANDLE(&pdev->dev);
if (!dhandle)
return false;
@@ -414,7 +414,7 @@ bool nouveau_acpi_rom_supported(struct pci_dev *pdev)
if (!nouveau_dsm_priv.dsm_detected && !nouveau_dsm_priv.optimus_detected)
return false;
- dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
+ dhandle = ACPI_HANDLE(&pdev->dev);
if (!dhandle)
return false;
@@ -448,7 +448,7 @@ nouveau_acpi_edid(struct drm_device *dev, struct drm_connector *connector)
return NULL;
}
- handle = DEVICE_ACPI_HANDLE(&dev->pdev->dev);
+ handle = ACPI_HANDLE(&dev->pdev->dev);
if (!handle)
return NULL;
diff --git a/drivers/gpu/drm/radeon/radeon_acpi.c b/drivers/gpu/drm/radeon/radeon_acpi.c
index 10f98c7742d8..98a9074b306b 100644
--- a/drivers/gpu/drm/radeon/radeon_acpi.c
+++ b/drivers/gpu/drm/radeon/radeon_acpi.c
@@ -369,7 +369,7 @@ int radeon_atif_handler(struct radeon_device *rdev,
return NOTIFY_DONE;
/* Check pending SBIOS requests */
- handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev);
+ handle = ACPI_HANDLE(&rdev->pdev->dev);
count = radeon_atif_get_sbios_requests(handle, &req);
if (count <= 0)
@@ -556,7 +556,7 @@ int radeon_acpi_pcie_notify_device_ready(struct radeon_device *rdev)
struct radeon_atcs *atcs = &rdev->atcs;
/* Get the device handle */
- handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev);
+ handle = ACPI_HANDLE(&rdev->pdev->dev);
if (!handle)
return -EINVAL;
@@ -596,7 +596,7 @@ int radeon_acpi_pcie_performance_request(struct radeon_device *rdev,
u32 retry = 3;
/* Get the device handle */
- handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev);
+ handle = ACPI_HANDLE(&rdev->pdev->dev);
if (!handle)
return -EINVAL;
@@ -699,7 +699,7 @@ int radeon_acpi_init(struct radeon_device *rdev)
int ret;
/* Get the device handle */
- handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev);
+ handle = ACPI_HANDLE(&rdev->pdev->dev);
/* No need to proceed if we're sure that ATIF is not supported */
if (!ASIC_IS_AVIVO(rdev) || !rdev->bios || !handle)
diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
index 6153ec18943a..9d302eaeea15 100644
--- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c
+++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
@@ -8,8 +8,7 @@
*/
#include <linux/vga_switcheroo.h>
#include <linux/slab.h>
-#include <acpi/acpi.h>
-#include <acpi/acpi_bus.h>
+#include <linux/acpi.h>
#include <linux/pci.h>
#include "radeon_acpi.h"
@@ -447,7 +446,7 @@ static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev)
acpi_handle dhandle, atpx_handle;
acpi_status status;
- dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
+ dhandle = ACPI_HANDLE(&pdev->dev);
if (!dhandle)
return false;
@@ -493,7 +492,7 @@ static int radeon_atpx_init(void)
*/
static int radeon_atpx_get_client_id(struct pci_dev *pdev)
{
- if (radeon_atpx_priv.dhandle == DEVICE_ACPI_HANDLE(&pdev->dev))
+ if (radeon_atpx_priv.dhandle == ACPI_HANDLE(&pdev->dev))
return VGA_SWITCHEROO_IGD;
else
return VGA_SWITCHEROO_DIS;
diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c
index c155d6f3fa68..b3633d9a5317 100644
--- a/drivers/gpu/drm/radeon/radeon_bios.c
+++ b/drivers/gpu/drm/radeon/radeon_bios.c
@@ -185,7 +185,7 @@ static bool radeon_atrm_get_bios(struct radeon_device *rdev)
return false;
while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
- dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
+ dhandle = ACPI_HANDLE(&pdev->dev);
if (!dhandle)
continue;
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index ae48d18ee315..5f7e55f4b7f0 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -1008,7 +1008,7 @@ static int i2c_hid_probe(struct i2c_client *client,
hid->hid_get_raw_report = i2c_hid_get_raw_report;
hid->hid_output_raw_report = i2c_hid_output_raw_report;
hid->dev.parent = &client->dev;
- ACPI_HANDLE_SET(&hid->dev, ACPI_HANDLE(&client->dev));
+ ACPI_COMPANION_SET(&hid->dev, ACPI_COMPANION(&client->dev));
hid->bus = BUS_I2C;
hid->version = le16_to_cpu(ihid->hdesc.bcdVersion);
hid->vendor = le16_to_cpu(ihid->hdesc.wVendorID);
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 5923cfa390c8..d74c0b34248e 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -615,6 +615,22 @@ void i2c_unlock_adapter(struct i2c_adapter *adapter)
}
EXPORT_SYMBOL_GPL(i2c_unlock_adapter);
+static void i2c_dev_set_name(struct i2c_adapter *adap,
+ struct i2c_client *client)
+{
+ struct acpi_device *adev = ACPI_COMPANION(&client->dev);
+
+ if (adev) {
+ dev_set_name(&client->dev, "i2c-%s", acpi_dev_name(adev));
+ return;
+ }
+
+ /* For 10-bit clients, add an arbitrary offset to avoid collisions */
+ dev_set_name(&client->dev, "%d-%04x", i2c_adapter_id(adap),
+ client->addr | ((client->flags & I2C_CLIENT_TEN)
+ ? 0xa000 : 0));
+}
+
/**
* i2c_new_device - instantiate an i2c device
* @adap: the adapter managing the device
@@ -671,12 +687,9 @@ i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info)
client->dev.bus = &i2c_bus_type;
client->dev.type = &i2c_client_type;
client->dev.of_node = info->of_node;
- ACPI_HANDLE_SET(&client->dev, info->acpi_node.handle);
+ ACPI_COMPANION_SET(&client->dev, info->acpi_node.companion);
- /* For 10-bit clients, add an arbitrary offset to avoid collisions */
- dev_set_name(&client->dev, "%d-%04x", i2c_adapter_id(adap),
- client->addr | ((client->flags & I2C_CLIENT_TEN)
- ? 0xa000 : 0));
+ i2c_dev_set_name(adap, client);
status = device_register(&client->dev);
if (status)
goto out_err;
@@ -1100,7 +1113,7 @@ static acpi_status acpi_i2c_add_device(acpi_handle handle, u32 level,
return AE_OK;
memset(&info, 0, sizeof(info));
- info.acpi_node.handle = handle;
+ info.acpi_node.companion = adev;
info.irq = -1;
INIT_LIST_HEAD(&resource_list);
diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index 140c8ef50529..d9e1f7ccfe6f 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -7,6 +7,7 @@
* Copyright (C) 2006 Hannes Reinecke
*/
+#include <linux/acpi.h>
#include <linux/ata.h>
#include <linux/delay.h>
#include <linux/device.h>
@@ -19,8 +20,6 @@
#include <linux/dmi.h>
#include <linux/module.h>
-#include <acpi/acpi_bus.h>
-
#define REGS_PER_GTF 7
struct GTM_buffer {
@@ -128,7 +127,7 @@ static int ide_get_dev_handle(struct device *dev, acpi_handle *handle,
DEBPRINT("ENTER: pci %02x:%02x.%01x\n", bus, devnum, func);
- dev_handle = DEVICE_ACPI_HANDLE(dev);
+ dev_handle = ACPI_HANDLE(dev);
if (!dev_handle) {
DEBPRINT("no acpi handle for device\n");
goto err;
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 3226ce98fb18..cbd4e9abc47e 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -1,7 +1,7 @@
/*
* intel_idle.c - native hardware idle loop for modern Intel processors
*
- * Copyright (c) 2010, Intel Corporation.
+ * Copyright (c) 2013, Intel Corporation.
* Len Brown <len.brown@intel.com>
*
* This program is free software; you can redistribute it and/or modify it
@@ -329,6 +329,22 @@ static struct cpuidle_state atom_cstates[] __initdata = {
{
.enter = NULL }
};
+static struct cpuidle_state avn_cstates[CPUIDLE_STATE_MAX] = {
+ {
+ .name = "C1-AVN",
+ .desc = "MWAIT 0x00",
+ .flags = MWAIT2flg(0x00) | CPUIDLE_FLAG_TIME_VALID,
+ .exit_latency = 2,
+ .target_residency = 2,
+ .enter = &intel_idle },
+ {
+ .name = "C6-AVN",
+ .desc = "MWAIT 0x51",
+ .flags = MWAIT2flg(0x58) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
+ .exit_latency = 15,
+ .target_residency = 45,
+ .enter = &intel_idle },
+};
/**
* intel_idle
@@ -462,6 +478,11 @@ static const struct idle_cpu idle_cpu_hsw = {
.disable_promotion_to_c1e = true,
};
+static const struct idle_cpu idle_cpu_avn = {
+ .state_table = avn_cstates,
+ .disable_promotion_to_c1e = true,
+};
+
#define ICPU(model, cpu) \
{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_MWAIT, (unsigned long)&cpu }
@@ -483,6 +504,7 @@ static const struct x86_cpu_id intel_idle_ids[] = {
ICPU(0x3f, idle_cpu_hsw),
ICPU(0x45, idle_cpu_hsw),
ICPU(0x46, idle_cpu_hsw),
+ ICPU(0x4D, idle_cpu_avn),
{}
};
MODULE_DEVICE_TABLE(x86cpu, intel_idle_ids);
diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c
index ef8956568c3a..157b570ba343 100644
--- a/drivers/mmc/core/sdio_bus.c
+++ b/drivers/mmc/core/sdio_bus.c
@@ -308,8 +308,7 @@ static void sdio_acpi_set_handle(struct sdio_func *func)
struct mmc_host *host = func->card->host;
u64 addr = (host->slotno << 16) | func->num;
- ACPI_HANDLE_SET(&func->dev,
- acpi_get_child(ACPI_HANDLE(host->parent), addr));
+ acpi_preset_companion(&func->dev, ACPI_HANDLE(host->parent), addr);
}
#else
static inline void sdio_acpi_set_handle(struct sdio_func *func) {}
diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index 1ce8ee054f1a..a94d850ae228 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -367,7 +367,7 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *pdev, u32 flags)
string = (struct acpi_buffer){ ACPI_ALLOCATE_BUFFER, NULL };
}
- handle = DEVICE_ACPI_HANDLE(&pdev->dev);
+ handle = ACPI_HANDLE(&pdev->dev);
if (!handle) {
/*
* This hotplug controller was not listed in the ACPI name
diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
index 26100f510b10..1592dbe4f904 100644
--- a/drivers/pci/hotplug/acpiphp.h
+++ b/drivers/pci/hotplug/acpiphp.h
@@ -176,7 +176,6 @@ u8 acpiphp_get_latch_status(struct acpiphp_slot *slot);
u8 acpiphp_get_adapter_status(struct acpiphp_slot *slot);
/* variables */
-extern bool acpiphp_debug;
extern bool acpiphp_disabled;
#endif /* _ACPIPHP_H */
diff --git a/drivers/pci/hotplug/pciehp_acpi.c b/drivers/pci/hotplug/pciehp_acpi.c
index ead7c534095e..cff7cadfc2e4 100644
--- a/drivers/pci/hotplug/pciehp_acpi.c
+++ b/drivers/pci/hotplug/pciehp_acpi.c
@@ -54,7 +54,7 @@ int pciehp_acpi_slot_detection_check(struct pci_dev *dev)
{
if (slot_detection_mode != PCIEHP_DETECT_ACPI)
return 0;
- if (acpi_pci_detect_ejectable(DEVICE_ACPI_HANDLE(&dev->dev)))
+ if (acpi_pci_detect_ejectable(ACPI_HANDLE(&dev->dev)))
return 0;
return -ENODEV;
}
@@ -96,7 +96,7 @@ static int __init dummy_probe(struct pcie_device *dev)
dup_slot_id++;
}
list_add_tail(&slot->list, &dummy_slots);
- handle = DEVICE_ACPI_HANDLE(&pdev->dev);
+ handle = ACPI_HANDLE(&pdev->dev);
if (!acpi_slot_detected && acpi_pci_detect_ejectable(handle))
acpi_slot_detected = 1;
return -ENODEV; /* dummy driver always returns error */
diff --git a/drivers/pci/hotplug/sgi_hotplug.c b/drivers/pci/hotplug/sgi_hotplug.c
index b2781dfe60e9..5b05a68cca6c 100644
--- a/drivers/pci/hotplug/sgi_hotplug.c
+++ b/drivers/pci/hotplug/sgi_hotplug.c
@@ -9,6 +9,7 @@
* Work to add BIOS PROM support was completed by Mike Habeck.
*/
+#include <linux/acpi.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
@@ -29,7 +30,6 @@
#include <asm/sn/sn_feature_sets.h>
#include <asm/sn/sn_sal.h>
#include <asm/sn/types.h>
-#include <linux/acpi.h>
#include <asm/sn/acpi.h>
#include "../pci.h"
@@ -414,7 +414,7 @@ static int enable_slot(struct hotplug_slot *bss_hotplug_slot)
acpi_handle rethandle;
acpi_status ret;
- phandle = PCI_CONTROLLER(slot->pci_bus)->acpi_handle;
+ phandle = acpi_device_handle(PCI_CONTROLLER(slot->pci_bus)->companion);
if (acpi_bus_get_device(phandle, &pdevice)) {
dev_dbg(&slot->pci_bus->self->dev,
@@ -495,7 +495,7 @@ static int disable_slot(struct hotplug_slot *bss_hotplug_slot)
/* free the ACPI resources for the slot */
if (SN_ACPI_BASE_SUPPORT() &&
- PCI_CONTROLLER(slot->pci_bus)->acpi_handle) {
+ PCI_CONTROLLER(slot->pci_bus)->companion) {
unsigned long long adr;
struct acpi_device *device;
acpi_handle phandle;
@@ -504,7 +504,7 @@ static int disable_slot(struct hotplug_slot *bss_hotplug_slot)
acpi_status ret;
/* Get the rootbus node pointer */
- phandle = PCI_CONTROLLER(slot->pci_bus)->acpi_handle;
+ phandle = acpi_device_handle(PCI_CONTROLLER(slot->pci_bus)->companion);
acpi_scan_lock_acquire();
/*
diff --git a/drivers/pci/ioapic.c b/drivers/pci/ioapic.c
index 1b90579b233a..50ce68098298 100644
--- a/drivers/pci/ioapic.c
+++ b/drivers/pci/ioapic.c
@@ -37,7 +37,7 @@ static int ioapic_probe(struct pci_dev *dev, const struct pci_device_id *ent)
char *type;
struct resource *res;
- handle = DEVICE_ACPI_HANDLE(&dev->dev);
+ handle = ACPI_HANDLE(&dev->dev);
if (!handle)
return -EINVAL;
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index dfd1f59de729..f166126e28d1 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -173,14 +173,14 @@ static pci_power_t acpi_pci_choose_state(struct pci_dev *pdev)
static bool acpi_pci_power_manageable(struct pci_dev *dev)
{
- acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev);
+ acpi_handle handle = ACPI_HANDLE(&dev->dev);
return handle ? acpi_bus_power_manageable(handle) : false;
}
static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
{
- acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev);
+ acpi_handle handle = ACPI_HANDLE(&dev->dev);
static const u8 state_conv[] = {
[PCI_D0] = ACPI_STATE_D0,
[PCI_D1] = ACPI_STATE_D1,
@@ -217,7 +217,7 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
static bool acpi_pci_can_wakeup(struct pci_dev *dev)
{
- acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev);
+ acpi_handle handle = ACPI_HANDLE(&dev->dev);
return handle ? acpi_bus_can_wakeup(handle) : false;
}
diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c
index edaed6f4da6c..d51f45aa669e 100644
--- a/drivers/pci/pci-label.c
+++ b/drivers/pci/pci-label.c
@@ -263,7 +263,7 @@ device_has_dsm(struct device *dev)
acpi_handle handle;
struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL};
- handle = DEVICE_ACPI_HANDLE(dev);
+ handle = ACPI_HANDLE(dev);
if (!handle)
return FALSE;
@@ -295,7 +295,7 @@ acpilabel_show(struct device *dev, struct device_attribute *attr, char *buf)
acpi_handle handle;
int length;
- handle = DEVICE_ACPI_HANDLE(dev);
+ handle = ACPI_HANDLE(dev);
if (!handle)
return -1;
@@ -316,7 +316,7 @@ acpiindex_show(struct device *dev, struct device_attribute *attr, char *buf)
acpi_handle handle;
int length;
- handle = DEVICE_ACPI_HANDLE(dev);
+ handle = ACPI_HANDLE(dev);
if (!handle)
return -1;
diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c
index 605a9be55129..b9429fbf1cd8 100644
--- a/drivers/platform/x86/apple-gmux.c
+++ b/drivers/platform/x86/apple-gmux.c
@@ -519,7 +519,7 @@ static int gmux_probe(struct pnp_dev *pnp, const struct pnp_device_id *id)
gmux_data->power_state = VGA_SWITCHEROO_ON;
- gmux_data->dhandle = DEVICE_ACPI_HANDLE(&pnp->dev);
+ gmux_data->dhandle = ACPI_HANDLE(&pnp->dev);
if (!gmux_data->dhandle) {
pr_err("Cannot find acpi handle for pnp device %s\n",
dev_name(&pnp->dev));
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
index 747826d99059..14655a0f0431 100644
--- a/drivers/pnp/pnpacpi/core.c
+++ b/drivers/pnp/pnpacpi/core.c
@@ -89,7 +89,7 @@ static int pnpacpi_set_resources(struct pnp_dev *dev)
pnp_dbg(&dev->dev, "set resources\n");
- handle = DEVICE_ACPI_HANDLE(&dev->dev);
+ handle = ACPI_HANDLE(&dev->dev);
if (!handle || acpi_bus_get_device(handle, &acpi_dev)) {
dev_dbg(&dev->dev, "ACPI device not found in %s!\n", __func__);
return -ENODEV;
@@ -122,7 +122,7 @@ static int pnpacpi_disable_resources(struct pnp_dev *dev)
dev_dbg(&dev->dev, "disable resources\n");
- handle = DEVICE_ACPI_HANDLE(&dev->dev);
+ handle = ACPI_HANDLE(&dev->dev);
if (!handle || acpi_bus_get_device(handle, &acpi_dev)) {
dev_dbg(&dev->dev, "ACPI device not found in %s!\n", __func__);
return 0;
@@ -144,7 +144,7 @@ static bool pnpacpi_can_wakeup(struct pnp_dev *dev)
struct acpi_device *acpi_dev;
acpi_handle handle;
- handle = DEVICE_ACPI_HANDLE(&dev->dev);
+ handle = ACPI_HANDLE(&dev->dev);
if (!handle || acpi_bus_get_device(handle, &acpi_dev)) {
dev_dbg(&dev->dev, "ACPI device not found in %s!\n", __func__);
return false;
@@ -159,7 +159,7 @@ static int pnpacpi_suspend(struct pnp_dev *dev, pm_message_t state)
acpi_handle handle;
int error = 0;
- handle = DEVICE_ACPI_HANDLE(&dev->dev);
+ handle = ACPI_HANDLE(&dev->dev);
if (!handle || acpi_bus_get_device(handle, &acpi_dev)) {
dev_dbg(&dev->dev, "ACPI device not found in %s!\n", __func__);
return 0;
@@ -194,7 +194,7 @@ static int pnpacpi_suspend(struct pnp_dev *dev, pm_message_t state)
static int pnpacpi_resume(struct pnp_dev *dev)
{
struct acpi_device *acpi_dev;
- acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev);
+ acpi_handle handle = ACPI_HANDLE(&dev->dev);
int error = 0;
if (!handle || acpi_bus_get_device(handle, &acpi_dev)) {
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 8d85ddc46011..18cc625d887f 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -357,6 +357,19 @@ struct spi_device *spi_alloc_device(struct spi_master *master)
}
EXPORT_SYMBOL_GPL(spi_alloc_device);
+static void spi_dev_set_name(struct spi_device *spi)
+{
+ struct acpi_device *adev = ACPI_COMPANION(&spi->dev);
+
+ if (adev) {
+ dev_set_name(&spi->dev, "spi-%s", acpi_dev_name(adev));
+ return;
+ }
+
+ dev_set_name(&spi->dev, "%s.%u", dev_name(&spi->master->dev),
+ spi->chip_select);
+}
+
/**
* spi_add_device - Add spi_device allocated with spi_alloc_device
* @spi: spi_device to register
@@ -383,9 +396,7 @@ int spi_add_device(struct spi_device *spi)
}
/* Set the bus ID string */
- dev_set_name(&spi->dev, "%s.%u", dev_name(&spi->master->dev),
- spi->chip_select);
-
+ spi_dev_set_name(spi);
/* We need to make sure there's no other device with this
* chipselect **BEFORE** we call setup(), else we'll trash
@@ -1144,7 +1155,7 @@ static acpi_status acpi_spi_add_device(acpi_handle handle, u32 level,
return AE_NO_MEMORY;
}
- ACPI_HANDLE_SET(&spi->dev, handle);
+ ACPI_COMPANION_SET(&spi->dev, adev);
spi->irq = -1;
INIT_LIST_HEAD(&resource_list);
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 06cec635e703..a7c04e24ca48 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -5501,6 +5501,6 @@ acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev,
if (!hub)
return NULL;
- return DEVICE_ACPI_HANDLE(&hub->ports[port1 - 1]->dev);
+ return ACPI_HANDLE(&hub->ports[port1 - 1]->dev);
}
#endif
diff --git a/drivers/usb/core/usb-acpi.c b/drivers/usb/core/usb-acpi.c
index 255c14464bf2..4e243c37f17f 100644
--- a/drivers/usb/core/usb-acpi.c
+++ b/drivers/usb/core/usb-acpi.c
@@ -173,7 +173,7 @@ static int usb_acpi_find_device(struct device *dev, acpi_handle *handle)
}
/* root hub's parent is the usb hcd. */
- parent_handle = DEVICE_ACPI_HANDLE(dev->parent);
+ parent_handle = ACPI_HANDLE(dev->parent);
*handle = acpi_get_child(parent_handle, udev->portnum);
if (!*handle)
return -ENODEV;
@@ -194,7 +194,7 @@ static int usb_acpi_find_device(struct device *dev, acpi_handle *handle)
raw_port_num = usb_hcd_find_raw_port_number(hcd,
port_num);
- *handle = acpi_get_child(DEVICE_ACPI_HANDLE(&udev->dev),
+ *handle = acpi_get_child(ACPI_HANDLE(&udev->dev),
raw_port_num);
if (!*handle)
return -ENODEV;
diff --git a/drivers/xen/pci.c b/drivers/xen/pci.c
index d15f6e80479f..188825122aae 100644
--- a/drivers/xen/pci.c
+++ b/drivers/xen/pci.c
@@ -59,12 +59,12 @@ static int xen_add_device(struct device *dev)
add.flags = XEN_PCI_DEV_EXTFN;
#ifdef CONFIG_ACPI
- handle = DEVICE_ACPI_HANDLE(&pci_dev->dev);
+ handle = ACPI_HANDLE(&pci_dev->dev);
if (!handle && pci_dev->bus->bridge)
- handle = DEVICE_ACPI_HANDLE(pci_dev->bus->bridge);
+ handle = ACPI_HANDLE(pci_dev->bus->bridge);
#ifdef CONFIG_PCI_IOV
if (!handle && pci_dev->is_virtfn)
- handle = DEVICE_ACPI_HANDLE(physfn->bus->bridge);
+ handle = ACPI_HANDLE(physfn->bus->bridge);
#endif
if (handle) {
acpi_status status;
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 89c60b0f6408..7b2de026a4f3 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -431,9 +431,9 @@ static inline acpi_handle acpi_get_child(acpi_handle handle, u64 addr)
{
return acpi_find_child(handle, addr, false);
}
+void acpi_preset_companion(struct device *dev, acpi_handle parent, u64 addr);
int acpi_is_root_bridge(acpi_handle);
struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
-#define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)ACPI_HANDLE(dev))
int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
int acpi_disable_wakeup_device_power(struct acpi_device *dev);
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index b0972c4ce81c..d9099b15b472 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -44,6 +44,20 @@
#include <acpi/acpi_numa.h>
#include <asm/acpi.h>
+static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
+{
+ return adev ? adev->handle : NULL;
+}
+
+#define ACPI_COMPANION(dev) ((dev)->acpi_node.companion)
+#define ACPI_COMPANION_SET(dev, adev) ACPI_COMPANION(dev) = (adev)
+#define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
+
+static inline const char *acpi_dev_name(struct acpi_device *adev)
+{
+ return dev_name(&adev->dev);
+}
+
enum acpi_irq_model_id {
ACPI_IRQ_MODEL_PIC = 0,
ACPI_IRQ_MODEL_IOAPIC,
@@ -401,6 +415,15 @@ static inline bool acpi_driver_match_device(struct device *dev,
#define acpi_disabled 1
+#define ACPI_COMPANION(dev) (NULL)
+#define ACPI_COMPANION_SET(dev, adev) do { } while (0)
+#define ACPI_HANDLE(dev) (NULL)
+
+static inline const char *acpi_dev_name(struct acpi_device *adev)
+{
+ return NULL;
+}
+
static inline void acpi_early_init(void) { }
static inline int early_acpi_boot_init(void)
diff --git a/include/linux/device.h b/include/linux/device.h
index b025925df7f7..952b01033c32 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -644,9 +644,11 @@ struct device_dma_parameters {
unsigned long segment_boundary_mask;
};
+struct acpi_device;
+
struct acpi_dev_node {
#ifdef CONFIG_ACPI
- void *handle;
+ struct acpi_device *companion;
#endif
};
@@ -790,14 +792,6 @@ static inline struct device *kobj_to_dev(struct kobject *kobj)
return container_of(kobj, struct device, kobj);
}
-#ifdef CONFIG_ACPI
-#define ACPI_HANDLE(dev) ((dev)->acpi_node.handle)
-#define ACPI_HANDLE_SET(dev, _handle_) (dev)->acpi_node.handle = (_handle_)
-#else
-#define ACPI_HANDLE(dev) (NULL)
-#define ACPI_HANDLE_SET(dev, _handle_) do { } while (0)
-#endif
-
/* Get the wakeup routines, which depend on struct device */
#include <linux/pm_wakeup.h>
diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h
index d006f0ca60f4..5a462c4e5009 100644
--- a/include/linux/pci-acpi.h
+++ b/include/linux/pci-acpi.h
@@ -27,7 +27,7 @@ static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
while (!pci_is_root_bus(pbus))
pbus = pbus->parent;
- return DEVICE_ACPI_HANDLE(pbus->bridge);
+ return ACPI_HANDLE(pbus->bridge);
}
static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
@@ -39,7 +39,7 @@ static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
else
dev = &pbus->self->dev;
- return DEVICE_ACPI_HANDLE(dev);
+ return ACPI_HANDLE(dev);
}
void acpi_pci_add_bus(struct pci_bus *bus);
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 10c22cae83a0..b38109e204af 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -792,7 +792,8 @@ void free_basic_memory_bitmaps(void)
{
struct memory_bitmap *bm1, *bm2;
- BUG_ON(!(forbidden_pages_map && free_pages_map));
+ if (WARN_ON(!(forbidden_pages_map && free_pages_map)))
+ return;
bm1 = forbidden_pages_map;
bm2 = free_pages_map;
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 24850270c802..98d357584cd6 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -70,6 +70,7 @@ static int snapshot_open(struct inode *inode, struct file *filp)
data->swap = swsusp_resume_device ?
swap_type_of(swsusp_resume_device, 0, NULL) : -1;
data->mode = O_RDONLY;
+ data->free_bitmaps = false;
error = pm_notifier_call_chain(PM_HIBERNATION_PREPARE);
if (error)
pm_notifier_call_chain(PM_POST_HIBERNATION);
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index fe702076ca46..9d77f13c2d25 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -2,7 +2,7 @@
* turbostat -- show CPU frequency and C-state residency
* on modern Intel turbo-capable processors.
*
- * Copyright (c) 2012 Intel Corporation.
+ * Copyright (c) 2013 Intel Corporation.
* Len Brown <len.brown@intel.com>
*
* This program is free software; you can redistribute it and/or modify it
@@ -47,6 +47,8 @@ unsigned int skip_c1;
unsigned int do_nhm_cstates;
unsigned int do_snb_cstates;
unsigned int do_c8_c9_c10;
+unsigned int do_slm_cstates;
+unsigned int use_c1_residency_msr;
unsigned int has_aperf;
unsigned int has_epb;
unsigned int units = 1000000000; /* Ghz etc */
@@ -81,6 +83,8 @@ double rapl_joule_counter_range;
#define RAPL_DRAM (1 << 3)
#define RAPL_PKG_PERF_STATUS (1 << 4)
#define RAPL_DRAM_PERF_STATUS (1 << 5)
+#define RAPL_PKG_POWER_INFO (1 << 6)
+#define RAPL_CORE_POLICY (1 << 7)
#define TJMAX_DEFAULT 100
#define MAX(a, b) ((a) > (b) ? (a) : (b))
@@ -96,7 +100,7 @@ struct thread_data {
unsigned long long tsc;
unsigned long long aperf;
unsigned long long mperf;
- unsigned long long c1; /* derived */
+ unsigned long long c1;
unsigned long long extra_msr64;
unsigned long long extra_delta64;
unsigned long long extra_msr32;
@@ -266,7 +270,7 @@ void print_header(void)
outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset64);
if (do_nhm_cstates)
outp += sprintf(outp, " %%c1");
- if (do_nhm_cstates)
+ if (do_nhm_cstates && !do_slm_cstates)
outp += sprintf(outp, " %%c3");
if (do_nhm_cstates)
outp += sprintf(outp, " %%c6");
@@ -280,9 +284,9 @@ void print_header(void)
if (do_snb_cstates)
outp += sprintf(outp, " %%pc2");
- if (do_nhm_cstates)
+ if (do_nhm_cstates && !do_slm_cstates)
outp += sprintf(outp, " %%pc3");
- if (do_nhm_cstates)
+ if (do_nhm_cstates && !do_slm_cstates)
outp += sprintf(outp, " %%pc6");
if (do_snb_cstates)
outp += sprintf(outp, " %%pc7");
@@ -480,7 +484,7 @@ int format_counters(struct thread_data *t, struct core_data *c,
if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
goto done;
- if (do_nhm_cstates)
+ if (do_nhm_cstates && !do_slm_cstates)
outp += sprintf(outp, " %6.2f", 100.0 * c->c3/t->tsc);
if (do_nhm_cstates)
outp += sprintf(outp, " %6.2f", 100.0 * c->c6/t->tsc);
@@ -499,9 +503,9 @@ int format_counters(struct thread_data *t, struct core_data *c,
if (do_snb_cstates)
outp += sprintf(outp, " %6.2f", 100.0 * p->pc2/t->tsc);
- if (do_nhm_cstates)
+ if (do_nhm_cstates && !do_slm_cstates)
outp += sprintf(outp, " %6.2f", 100.0 * p->pc3/t->tsc);
- if (do_nhm_cstates)
+ if (do_nhm_cstates && !do_slm_cstates)
outp += sprintf(outp, " %6.2f", 100.0 * p->pc6/t->tsc);
if (do_snb_cstates)
outp += sprintf(outp, " %6.2f", 100.0 * p->pc7/t->tsc);
@@ -648,17 +652,24 @@ delta_thread(struct thread_data *new, struct thread_data *old,
}
- /*
- * As counter collection is not atomic,
- * it is possible for mperf's non-halted cycles + idle states
- * to exceed TSC's all cycles: show c1 = 0% in that case.
- */
- if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc)
- old->c1 = 0;
- else {
- /* normal case, derive c1 */
- old->c1 = old->tsc - old->mperf - core_delta->c3
+ if (use_c1_residency_msr) {
+ /*
+ * Some models have a dedicated C1 residency MSR,
+ * which should be more accurate than the derivation below.
+ */
+ } else {
+ /*
+ * As counter collection is not atomic,
+ * it is possible for mperf's non-halted cycles + idle states
+ * to exceed TSC's all cycles: show c1 = 0% in that case.
+ */
+ if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc)
+ old->c1 = 0;
+ else {
+ /* normal case, derive c1 */
+ old->c1 = old->tsc - old->mperf - core_delta->c3
- core_delta->c6 - core_delta->c7;
+ }
}
if (old->mperf == 0) {
@@ -872,13 +883,21 @@ int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64))
return -5;
+ if (use_c1_residency_msr) {
+ if (get_msr(cpu, MSR_CORE_C1_RES, &t->c1))
+ return -6;
+ }
+
/* collect core counters only for 1st thread in core */
if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
return 0;
- if (do_nhm_cstates) {
+ if (do_nhm_cstates && !do_slm_cstates) {
if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3))
return -6;
+ }
+
+ if (do_nhm_cstates) {
if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6))
return -7;
}
@@ -898,7 +917,7 @@ int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
return 0;
- if (do_nhm_cstates) {
+ if (do_nhm_cstates && !do_slm_cstates) {
if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3))
return -9;
if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6))
@@ -977,7 +996,7 @@ void print_verbose_header(void)
ratio, bclk, ratio * bclk);
get_msr(0, MSR_IA32_POWER_CTL, &msr);
- fprintf(stderr, "cpu0: MSR_IA32_POWER_CTL: 0x%08llx (C1E: %sabled)\n",
+ fprintf(stderr, "cpu0: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n",
msr, msr & 0x2 ? "EN" : "DIS");
if (!do_ivt_turbo_ratio_limit)
@@ -1046,25 +1065,28 @@ print_nhm_turbo_ratio_limits:
switch(msr & 0x7) {
case 0:
- fprintf(stderr, "pc0");
+ fprintf(stderr, do_slm_cstates ? "no pkg states" : "pc0");
break;
case 1:
- fprintf(stderr, do_snb_cstates ? "pc2" : "pc0");
+ fprintf(stderr, do_slm_cstates ? "no pkg states" : do_snb_cstates ? "pc2" : "pc0");
break;
case 2:
- fprintf(stderr, do_snb_cstates ? "pc6-noret" : "pc3");
+ fprintf(stderr, do_slm_cstates ? "invalid" : do_snb_cstates ? "pc6-noret" : "pc3");
break;
case 3:
- fprintf(stderr, "pc6");
+ fprintf(stderr, do_slm_cstates ? "invalid" : "pc6");
break;
case 4:
- fprintf(stderr, "pc7");
+ fprintf(stderr, do_slm_cstates ? "pc4" : "pc7");
break;
case 5:
- fprintf(stderr, do_snb_cstates ? "pc7s" : "invalid");
+ fprintf(stderr, do_slm_cstates ? "invalid" : do_snb_cstates ? "pc7s" : "invalid");
+ break;
+ case 6:
+ fprintf(stderr, do_slm_cstates ? "pc6" : "invalid");
break;
case 7:
- fprintf(stderr, "unlimited");
+ fprintf(stderr, do_slm_cstates ? "pc7" : "unlimited");
break;
default:
fprintf(stderr, "invalid");
@@ -1460,6 +1482,8 @@ int has_nehalem_turbo_ratio_limit(unsigned int family, unsigned int model)
case 0x3F: /* HSW */
case 0x45: /* HSW */
case 0x46: /* HSW */
+ case 0x37: /* BYT */
+ case 0x4D: /* AVN */
return 1;
case 0x2E: /* Nehalem-EX Xeon - Beckton */
case 0x2F: /* Westmere-EX Xeon - Eagleton */
@@ -1532,14 +1556,33 @@ int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p)
#define RAPL_POWER_GRANULARITY 0x7FFF /* 15 bit power granularity */
#define RAPL_TIME_GRANULARITY 0x3F /* 6 bit time granularity */
+double get_tdp(model)
+{
+ unsigned long long msr;
+
+ if (do_rapl & RAPL_PKG_POWER_INFO)
+ if (!get_msr(0, MSR_PKG_POWER_INFO, &msr))
+ return ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units;
+
+ switch (model) {
+ case 0x37:
+ case 0x4D:
+ return 30.0;
+ default:
+ return 135.0;
+ }
+}
+
+
/*
* rapl_probe()
*
- * sets do_rapl
+ * sets do_rapl, rapl_power_units, rapl_energy_units, rapl_time_units
*/
void rapl_probe(unsigned int family, unsigned int model)
{
unsigned long long msr;
+ unsigned int time_unit;
double tdp;
if (!genuine_intel)
@@ -1555,11 +1598,15 @@ void rapl_probe(unsigned int family, unsigned int model)
case 0x3F: /* HSW */
case 0x45: /* HSW */
case 0x46: /* HSW */
- do_rapl = RAPL_PKG | RAPL_CORES | RAPL_GFX;
+ do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_GFX | RAPL_PKG_POWER_INFO;
break;
case 0x2D:
case 0x3E:
- do_rapl = RAPL_PKG | RAPL_CORES | RAPL_DRAM | RAPL_PKG_PERF_STATUS | RAPL_DRAM_PERF_STATUS;
+ do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_DRAM | RAPL_PKG_PERF_STATUS | RAPL_DRAM_PERF_STATUS | RAPL_PKG_POWER_INFO;
+ break;
+ case 0x37: /* BYT */
+ case 0x4D: /* AVN */
+ do_rapl = RAPL_PKG | RAPL_CORES ;
break;
default:
return;
@@ -1570,19 +1617,22 @@ void rapl_probe(unsigned int family, unsigned int model)
return;
rapl_power_units = 1.0 / (1 << (msr & 0xF));
- rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F));
- rapl_time_units = 1.0 / (1 << (msr >> 16 & 0xF));
+ if (model == 0x37)
+ rapl_energy_units = 1.0 * (1 << (msr >> 8 & 0x1F)) / 1000000;
+ else
+ rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F));
- /* get TDP to determine energy counter range */
- if (get_msr(0, MSR_PKG_POWER_INFO, &msr))
- return;
+ time_unit = msr >> 16 & 0xF;
+ if (time_unit == 0)
+ time_unit = 0xA;
- tdp = ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units;
+ rapl_time_units = 1.0 / (1 << (time_unit));
- rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp;
+ tdp = get_tdp(model);
+ rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp;
if (verbose)
- fprintf(stderr, "RAPL: %.0f sec. Joule Counter Range\n", rapl_joule_counter_range);
+ fprintf(stderr, "RAPL: %.0f sec. Joule Counter Range, at %.0f Watts\n", rapl_joule_counter_range, tdp);
return;
}
@@ -1668,7 +1718,6 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
{
unsigned long long msr;
int cpu;
- double local_rapl_power_units, local_rapl_energy_units, local_rapl_time_units;
if (!do_rapl)
return 0;
@@ -1686,23 +1735,13 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
if (get_msr(cpu, MSR_RAPL_POWER_UNIT, &msr))
return -1;
- local_rapl_power_units = 1.0 / (1 << (msr & 0xF));
- local_rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F));
- local_rapl_time_units = 1.0 / (1 << (msr >> 16 & 0xF));
-
- if (local_rapl_power_units != rapl_power_units)
- fprintf(stderr, "cpu%d, ERROR: Power units mis-match\n", cpu);
- if (local_rapl_energy_units != rapl_energy_units)
- fprintf(stderr, "cpu%d, ERROR: Energy units mis-match\n", cpu);
- if (local_rapl_time_units != rapl_time_units)
- fprintf(stderr, "cpu%d, ERROR: Time units mis-match\n", cpu);
-
if (verbose) {
fprintf(stderr, "cpu%d: MSR_RAPL_POWER_UNIT: 0x%08llx "
"(%f Watts, %f Joules, %f sec.)\n", cpu, msr,
- local_rapl_power_units, local_rapl_energy_units, local_rapl_time_units);
+ rapl_power_units, rapl_energy_units, rapl_time_units);
}
- if (do_rapl & RAPL_PKG) {
+ if (do_rapl & RAPL_PKG_POWER_INFO) {
+
if (get_msr(cpu, MSR_PKG_POWER_INFO, &msr))
return -5;
@@ -1714,6 +1753,9 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);
+ }
+ if (do_rapl & RAPL_PKG) {
+
if (get_msr(cpu, MSR_PKG_POWER_LIMIT, &msr))
return -9;
@@ -1749,12 +1791,16 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
print_power_limit_msr(cpu, msr, "DRAM Limit");
}
- if (do_rapl & RAPL_CORES) {
+ if (do_rapl & RAPL_CORE_POLICY) {
if (verbose) {
if (get_msr(cpu, MSR_PP0_POLICY, &msr))
return -7;
fprintf(stderr, "cpu%d: MSR_PP0_POLICY: %lld\n", cpu, msr & 0xF);
+ }
+ }
+ if (do_rapl & RAPL_CORES) {
+ if (verbose) {
if (get_msr(cpu, MSR_PP0_POWER_LIMIT, &msr))
return -9;
@@ -1813,10 +1859,48 @@ int has_c8_c9_c10(unsigned int family, unsigned int model)
}
+int is_slm(unsigned int family, unsigned int model)
+{
+ if (!genuine_intel)
+ return 0;
+ switch (model) {
+ case 0x37: /* BYT */
+ case 0x4D: /* AVN */
+ return 1;
+ }
+ return 0;
+}
+
+#define SLM_BCLK_FREQS 5
+double slm_freq_table[SLM_BCLK_FREQS] = { 83.3, 100.0, 133.3, 116.7, 80.0};
+
+double slm_bclk(void)
+{
+ unsigned long long msr = 3;
+ unsigned int i;
+ double freq;
+
+ if (get_msr(0, MSR_FSB_FREQ, &msr))
+ fprintf(stderr, "SLM BCLK: unknown\n");
+
+ i = msr & 0xf;
+ if (i >= SLM_BCLK_FREQS) {
+ fprintf(stderr, "SLM BCLK[%d] invalid\n", i);
+ msr = 3;
+ }
+ freq = slm_freq_table[i];
+
+ fprintf(stderr, "SLM BCLK: %.1f Mhz\n", freq);
+
+ return freq;
+}
+
double discover_bclk(unsigned int family, unsigned int model)
{
if (is_snb(family, model))
return 100.00;
+ else if (is_slm(family, model))
+ return slm_bclk();
else
return 133.33;
}
@@ -1873,7 +1957,7 @@ int set_temperature_target(struct thread_data *t, struct core_data *c, struct pk
fprintf(stderr, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n",
cpu, msr, target_c_local);
- if (target_c_local < 85 || target_c_local > 120)
+ if (target_c_local < 85 || target_c_local > 127)
goto guess;
tcc_activation_temp = target_c_local;
@@ -1970,6 +2054,7 @@ void check_cpuid()
do_smi = do_nhm_cstates;
do_snb_cstates = is_snb(family, model);
do_c8_c9_c10 = has_c8_c9_c10(family, model);
+ do_slm_cstates = is_slm(family, model);
bclk = discover_bclk(family, model);
do_nehalem_turbo_ratio_limit = has_nehalem_turbo_ratio_limit(family, model);
@@ -2331,7 +2416,7 @@ int main(int argc, char **argv)
cmdline(argc, argv);
if (verbose)
- fprintf(stderr, "turbostat v3.4 April 17, 2013"
+ fprintf(stderr, "turbostat v3.5 April 26, 2013"
" - Len Brown <lenb@kernel.org>\n");
turbostat_init();