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-rw-r--r--drivers/base/attribute_container.c1
-rw-r--r--drivers/base/bus.c1
-rw-r--r--drivers/base/cpu.c1
-rw-r--r--drivers/base/devres.c1
-rw-r--r--drivers/base/devtmpfs.c1
-rw-r--r--drivers/base/dma-coherent.c1
-rw-r--r--drivers/base/dma-mapping.c1
-rw-r--r--drivers/base/driver.c1
-rw-r--r--drivers/base/firmware_class.c1
-rw-r--r--drivers/base/iommu.c43
-rw-r--r--drivers/base/memory.c3
-rw-r--r--drivers/base/module.c1
-rw-r--r--drivers/base/node.c1
-rw-r--r--drivers/base/platform.c30
-rw-r--r--drivers/base/power/runtime.c10
-rw-r--r--drivers/base/power/sysfs.c65
-rw-r--r--drivers/base/sys.c1
17 files changed, 134 insertions, 29 deletions
diff --git a/drivers/base/attribute_container.c b/drivers/base/attribute_container.c
index b9cda053d3c0..8fc200b2e2c0 100644
--- a/drivers/base/attribute_container.c
+++ b/drivers/base/attribute_container.c
@@ -328,6 +328,7 @@ attribute_container_add_attrs(struct device *classdev)
return sysfs_create_group(&classdev->kobj, cont->grp);
for (i = 0; attrs[i]; i++) {
+ sysfs_attr_init(&attrs[i]->attr);
error = device_create_file(classdev, attrs[i]);
if (error)
return error;
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 71f6af5c8b0b..12eec3f633b1 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -13,6 +13,7 @@
#include <linux/device.h>
#include <linux/module.h>
#include <linux/errno.h>
+#include <linux/slab.h>
#include <linux/init.h>
#include <linux/string.h>
#include "base.h"
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index b5242e1e8bc4..f35719aab3c1 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -10,6 +10,7 @@
#include <linux/topology.h>
#include <linux/device.h>
#include <linux/node.h>
+#include <linux/gfp.h>
#include "base.h"
diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 05dd307e8f02..cf7a0c788052 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -9,6 +9,7 @@
#include <linux/device.h>
#include <linux/module.h>
+#include <linux/slab.h>
#include "base.h"
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index dac478c6e460..057cf11326bf 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -23,6 +23,7 @@
#include <linux/cred.h>
#include <linux/sched.h>
#include <linux/init_task.h>
+#include <linux/slab.h>
static struct vfsmount *dev_mnt;
diff --git a/drivers/base/dma-coherent.c b/drivers/base/dma-coherent.c
index 962a3b574f21..d4d8ce53886a 100644
--- a/drivers/base/dma-coherent.c
+++ b/drivers/base/dma-coherent.c
@@ -2,6 +2,7 @@
* Coherent per-device memory handling.
* Borrowed from i386
*/
+#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/dma-mapping.h>
diff --git a/drivers/base/dma-mapping.c b/drivers/base/dma-mapping.c
index ca9186f70a69..763d59c1eb65 100644
--- a/drivers/base/dma-mapping.c
+++ b/drivers/base/dma-mapping.c
@@ -8,6 +8,7 @@
*/
#include <linux/dma-mapping.h>
+#include <linux/gfp.h>
/*
* Managed DMA API
diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index 90c9fff09ead..b631f7c59453 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -13,6 +13,7 @@
#include <linux/device.h>
#include <linux/module.h>
#include <linux/errno.h>
+#include <linux/slab.h>
#include <linux/string.h>
#include "base.h"
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 18518ba13c81..985da11174e7 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -19,6 +19,7 @@
#include <linux/kthread.h>
#include <linux/highmem.h>
#include <linux/firmware.h>
+#include <linux/slab.h>
#define to_dev(obj) container_of(obj, struct device, kobj)
diff --git a/drivers/base/iommu.c b/drivers/base/iommu.c
index 8ad4ffea6920..6e6b6a11b3ce 100644
--- a/drivers/base/iommu.c
+++ b/drivers/base/iommu.c
@@ -80,20 +80,6 @@ void iommu_detach_device(struct iommu_domain *domain, struct device *dev)
}
EXPORT_SYMBOL_GPL(iommu_detach_device);
-int iommu_map_range(struct iommu_domain *domain, unsigned long iova,
- phys_addr_t paddr, size_t size, int prot)
-{
- return iommu_ops->map(domain, iova, paddr, size, prot);
-}
-EXPORT_SYMBOL_GPL(iommu_map_range);
-
-void iommu_unmap_range(struct iommu_domain *domain, unsigned long iova,
- size_t size)
-{
- iommu_ops->unmap(domain, iova, size);
-}
-EXPORT_SYMBOL_GPL(iommu_unmap_range);
-
phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain,
unsigned long iova)
{
@@ -107,3 +93,32 @@ int iommu_domain_has_cap(struct iommu_domain *domain,
return iommu_ops->domain_has_cap(domain, cap);
}
EXPORT_SYMBOL_GPL(iommu_domain_has_cap);
+
+int iommu_map(struct iommu_domain *domain, unsigned long iova,
+ phys_addr_t paddr, int gfp_order, int prot)
+{
+ unsigned long invalid_mask;
+ size_t size;
+
+ size = 0x1000UL << gfp_order;
+ invalid_mask = size - 1;
+
+ BUG_ON((iova | paddr) & invalid_mask);
+
+ return iommu_ops->map(domain, iova, paddr, gfp_order, prot);
+}
+EXPORT_SYMBOL_GPL(iommu_map);
+
+int iommu_unmap(struct iommu_domain *domain, unsigned long iova, int gfp_order)
+{
+ unsigned long invalid_mask;
+ size_t size;
+
+ size = 0x1000UL << gfp_order;
+ invalid_mask = size - 1;
+
+ BUG_ON(iova & invalid_mask);
+
+ return iommu_ops->unmap(domain, iova, gfp_order);
+}
+EXPORT_SYMBOL_GPL(iommu_unmap);
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index db0848e54cc6..933442f40321 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -22,6 +22,7 @@
#include <linux/mm.h>
#include <linux/mutex.h>
#include <linux/stat.h>
+#include <linux/slab.h>
#include <asm/atomic.h>
#include <asm/uaccess.h>
@@ -312,7 +313,7 @@ static ssize_t
print_block_size(struct sysdev_class *class, struct sysdev_class_attribute *attr,
char *buf)
{
- return sprintf(buf, "%#lx\n", (unsigned long)PAGES_PER_SECTION * PAGE_SIZE);
+ return sprintf(buf, "%lx\n", (unsigned long)PAGES_PER_SECTION * PAGE_SIZE);
}
static SYSDEV_CLASS_ATTR(block_size_bytes, 0444, print_block_size, NULL);
diff --git a/drivers/base/module.c b/drivers/base/module.c
index 103be9cacb05..f32f2f9b7be5 100644
--- a/drivers/base/module.c
+++ b/drivers/base/module.c
@@ -7,6 +7,7 @@
#include <linux/device.h>
#include <linux/module.h>
#include <linux/errno.h>
+#include <linux/slab.h>
#include <linux/string.h>
#include "base.h"
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 93b3ac65c2d4..057979a19eea 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -15,6 +15,7 @@
#include <linux/cpu.h>
#include <linux/device.h>
#include <linux/swap.h>
+#include <linux/slab.h>
static struct sysdev_class_attribute *node_state_attrs[];
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 4b4b565c835f..ada6397c23a5 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -187,7 +187,7 @@ EXPORT_SYMBOL_GPL(platform_device_alloc);
* released.
*/
int platform_device_add_resources(struct platform_device *pdev,
- struct resource *res, unsigned int num)
+ const struct resource *res, unsigned int num)
{
struct resource *r;
@@ -367,7 +367,7 @@ EXPORT_SYMBOL_GPL(platform_device_unregister);
*/
struct platform_device *platform_device_register_simple(const char *name,
int id,
- struct resource *res,
+ const struct resource *res,
unsigned int num)
{
struct platform_device *pdev;
@@ -967,17 +967,17 @@ static int platform_pm_restore_noirq(struct device *dev)
int __weak platform_pm_runtime_suspend(struct device *dev)
{
- return -ENOSYS;
+ return pm_generic_runtime_suspend(dev);
};
int __weak platform_pm_runtime_resume(struct device *dev)
{
- return -ENOSYS;
+ return pm_generic_runtime_resume(dev);
};
int __weak platform_pm_runtime_idle(struct device *dev)
{
- return -ENOSYS;
+ return pm_generic_runtime_idle(dev);
};
#else /* !CONFIG_PM_RUNTIME */
@@ -1254,6 +1254,26 @@ static int __init early_platform_driver_probe_id(char *class_str,
}
if (match) {
+ /*
+ * Set up a sensible init_name to enable
+ * dev_name() and others to be used before the
+ * rest of the driver core is initialized.
+ */
+ if (!match->dev.init_name && slab_is_available()) {
+ if (match->id != -1)
+ match->dev.init_name =
+ kasprintf(GFP_KERNEL, "%s.%d",
+ match->name,
+ match->id);
+ else
+ match->dev.init_name =
+ kasprintf(GFP_KERNEL, "%s",
+ match->name);
+
+ if (!match->dev.init_name)
+ return -ENOMEM;
+ }
+
if (epdrv->pdrv->probe(match))
pr_warning("%s: unable to probe %s early.\n",
class_str, match->name);
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 626dd147b75f..b0ec0e9f27e9 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -229,14 +229,16 @@ int __pm_runtime_suspend(struct device *dev, bool from_wq)
if (retval) {
dev->power.runtime_status = RPM_ACTIVE;
- pm_runtime_cancel_pending(dev);
-
if (retval == -EAGAIN || retval == -EBUSY) {
- notify = true;
+ if (dev->power.timer_expires == 0)
+ notify = true;
dev->power.runtime_error = 0;
+ } else {
+ pm_runtime_cancel_pending(dev);
}
} else {
dev->power.runtime_status = RPM_SUSPENDED;
+ pm_runtime_deactivate_timer(dev);
if (dev->parent) {
parent = dev->parent;
@@ -659,8 +661,6 @@ int pm_schedule_suspend(struct device *dev, unsigned int delay)
if (dev->power.runtime_status == RPM_SUSPENDED)
retval = 1;
- else if (dev->power.runtime_status == RPM_SUSPENDING)
- retval = -EINPROGRESS;
else if (atomic_read(&dev->power.usage_count) > 0
|| dev->power.disable_depth > 0)
retval = -EAGAIN;
diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c
index 86fd9373447e..a4c33bc51257 100644
--- a/drivers/base/power/sysfs.c
+++ b/drivers/base/power/sysfs.c
@@ -5,6 +5,7 @@
#include <linux/device.h>
#include <linux/string.h>
#include <linux/pm_runtime.h>
+#include <asm/atomic.h>
#include "power.h"
/*
@@ -143,7 +144,59 @@ wake_store(struct device * dev, struct device_attribute *attr,
static DEVICE_ATTR(wakeup, 0644, wake_show, wake_store);
-#ifdef CONFIG_PM_SLEEP_ADVANCED_DEBUG
+#ifdef CONFIG_PM_ADVANCED_DEBUG
+#ifdef CONFIG_PM_RUNTIME
+
+static ssize_t rtpm_usagecount_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "%d\n", atomic_read(&dev->power.usage_count));
+}
+
+static ssize_t rtpm_children_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "%d\n", dev->power.ignore_children ?
+ 0 : atomic_read(&dev->power.child_count));
+}
+
+static ssize_t rtpm_enabled_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ if ((dev->power.disable_depth) && (dev->power.runtime_auto == false))
+ return sprintf(buf, "disabled & forbidden\n");
+ else if (dev->power.disable_depth)
+ return sprintf(buf, "disabled\n");
+ else if (dev->power.runtime_auto == false)
+ return sprintf(buf, "forbidden\n");
+ return sprintf(buf, "enabled\n");
+}
+
+static ssize_t rtpm_status_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ if (dev->power.runtime_error)
+ return sprintf(buf, "error\n");
+ switch (dev->power.runtime_status) {
+ case RPM_SUSPENDED:
+ return sprintf(buf, "suspended\n");
+ case RPM_SUSPENDING:
+ return sprintf(buf, "suspending\n");
+ case RPM_RESUMING:
+ return sprintf(buf, "resuming\n");
+ case RPM_ACTIVE:
+ return sprintf(buf, "active\n");
+ }
+ return -EIO;
+}
+
+static DEVICE_ATTR(runtime_usage, 0444, rtpm_usagecount_show, NULL);
+static DEVICE_ATTR(runtime_active_kids, 0444, rtpm_children_show, NULL);
+static DEVICE_ATTR(runtime_status, 0444, rtpm_status_show, NULL);
+static DEVICE_ATTR(runtime_enabled, 0444, rtpm_enabled_show, NULL);
+
+#endif
+
static ssize_t async_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
@@ -170,15 +223,21 @@ static ssize_t async_store(struct device *dev, struct device_attribute *attr,
}
static DEVICE_ATTR(async, 0644, async_show, async_store);
-#endif /* CONFIG_PM_SLEEP_ADVANCED_DEBUG */
+#endif /* CONFIG_PM_ADVANCED_DEBUG */
static struct attribute * power_attrs[] = {
#ifdef CONFIG_PM_RUNTIME
&dev_attr_control.attr,
#endif
&dev_attr_wakeup.attr,
-#ifdef CONFIG_PM_SLEEP_ADVANCED_DEBUG
+#ifdef CONFIG_PM_ADVANCED_DEBUG
&dev_attr_async.attr,
+#ifdef CONFIG_PM_RUNTIME
+ &dev_attr_runtime_usage.attr,
+ &dev_attr_runtime_active_kids.attr,
+ &dev_attr_runtime_status.attr,
+ &dev_attr_runtime_enabled.attr,
+#endif
#endif
NULL,
};
diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index 8980feec5d14..9354dc10a363 100644
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -17,7 +17,6 @@
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
-#include <linux/slab.h>
#include <linux/string.h>
#include <linux/pm.h>
#include <linux/device.h>
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