diff options
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/cpu.c | 2 | ||||
| -rw-r--r-- | drivers/base/iommu.c | 9 | ||||
| -rw-r--r-- | drivers/base/isa.c | 2 | ||||
| -rw-r--r-- | drivers/base/node.c | 2 | ||||
| -rw-r--r-- | drivers/base/power/main.c | 20 | ||||
| -rw-r--r-- | drivers/base/sys.c | 10 |
6 files changed, 31 insertions, 14 deletions
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 5b257a57bc5..e62a4ccea54 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -119,7 +119,7 @@ static ssize_t print_cpus_map(char *buf, const struct cpumask *map) #define print_cpus_func(type) \ static ssize_t print_cpus_##type(struct sysdev_class *class, char *buf) \ { \ - return print_cpus_map(buf, &cpu_##type##_map); \ + return print_cpus_map(buf, cpu_##type##_mask); \ } \ static struct sysdev_class_attribute attr_##type##_map = \ _SYSDEV_CLASS_ATTR(type, 0444, print_cpus_##type, NULL) diff --git a/drivers/base/iommu.c b/drivers/base/iommu.c index 5e039d4f877..9f0e672f4be 100644 --- a/drivers/base/iommu.c +++ b/drivers/base/iommu.c @@ -31,7 +31,7 @@ void register_iommu(struct iommu_ops *ops) iommu_ops = ops; } -bool iommu_found() +bool iommu_found(void) { return iommu_ops != NULL; } @@ -98,3 +98,10 @@ phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain, return iommu_ops->iova_to_phys(domain, iova); } EXPORT_SYMBOL_GPL(iommu_iova_to_phys); + +int iommu_domain_has_cap(struct iommu_domain *domain, + unsigned long cap) +{ + return iommu_ops->domain_has_cap(domain, cap); +} +EXPORT_SYMBOL_GPL(iommu_domain_has_cap); diff --git a/drivers/base/isa.c b/drivers/base/isa.c index 479694b6cbe..91dba65d726 100644 --- a/drivers/base/isa.c +++ b/drivers/base/isa.c @@ -141,7 +141,7 @@ int isa_register_driver(struct isa_driver *isa_driver, unsigned int ndev) isa_dev->dev.release = isa_dev_release; isa_dev->id = id; - isa_dev->dev.coherent_dma_mask = DMA_24BIT_MASK; + isa_dev->dev.coherent_dma_mask = DMA_BIT_MASK(24); isa_dev->dev.dma_mask = &isa_dev->dev.coherent_dma_mask; error = device_register(&isa_dev->dev); diff --git a/drivers/base/node.c b/drivers/base/node.c index f8f578a71b2..40b809742a1 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -24,7 +24,7 @@ static struct sysdev_class node_class = { static ssize_t node_read_cpumap(struct sys_device *dev, int type, char *buf) { struct node *node_dev = to_node(dev); - node_to_cpumask_ptr(mask, node_dev->sysdev.id); + const struct cpumask *mask = cpumask_of_node(node_dev->sysdev.id); int len; /* 2008/04/07: buf currently PAGE_SIZE, need 9 chars per 32 bits. */ diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index e255341682c..69b4ddb7de3 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -23,6 +23,7 @@ #include <linux/pm.h> #include <linux/resume-trace.h> #include <linux/rwsem.h> +#include <linux/interrupt.h> #include "../base.h" #include "power.h" @@ -349,7 +350,8 @@ static int resume_device_noirq(struct device *dev, pm_message_t state) * Execute the appropriate "noirq resume" callback for all devices marked * as DPM_OFF_IRQ. * - * Must be called with interrupts disabled and only one CPU running. + * Must be called under dpm_list_mtx. Device drivers should not receive + * interrupts while it's being executed. */ static void dpm_power_up(pm_message_t state) { @@ -370,14 +372,13 @@ static void dpm_power_up(pm_message_t state) * device_power_up - Turn on all devices that need special attention. * @state: PM transition of the system being carried out. * - * Power on system devices, then devices that required we shut them down - * with interrupts disabled. - * - * Must be called with interrupts disabled. + * Call the "early" resume handlers and enable device drivers to receive + * interrupts. */ void device_power_up(pm_message_t state) { dpm_power_up(state); + resume_device_irqs(); } EXPORT_SYMBOL_GPL(device_power_up); @@ -602,16 +603,17 @@ static int suspend_device_noirq(struct device *dev, pm_message_t state) * device_power_down - Shut down special devices. * @state: PM transition of the system being carried out. * - * Power down devices that require interrupts to be disabled. - * Then power down system devices. + * Prevent device drivers from receiving interrupts and call the "late" + * suspend handlers. * - * Must be called with interrupts disabled and only one CPU running. + * Must be called under dpm_list_mtx. */ int device_power_down(pm_message_t state) { struct device *dev; int error = 0; + suspend_device_irqs(); list_for_each_entry_reverse(dev, &dpm_list, power.entry) { error = suspend_device_noirq(dev, state); if (error) { @@ -621,7 +623,7 @@ int device_power_down(pm_message_t state) dev->power.status = DPM_OFF_IRQ; } if (error) - dpm_power_up(resume_event(state)); + device_power_up(resume_event(state)); return error; } EXPORT_SYMBOL_GPL(device_power_down); diff --git a/drivers/base/sys.c b/drivers/base/sys.c index cbd36cf59a0..3236b434b96 100644 --- a/drivers/base/sys.c +++ b/drivers/base/sys.c @@ -22,6 +22,7 @@ #include <linux/pm.h> #include <linux/device.h> #include <linux/mutex.h> +#include <linux/interrupt.h> #include "base.h" @@ -299,7 +300,7 @@ void sysdev_unregister(struct sys_device *sysdev) * and the class driver. * * Note: The list is iterated in reverse order, so that we shut down - * child devices before we shut down thier parents. The list ordering + * child devices before we shut down their parents. The list ordering * is guaranteed by virtue of the fact that child devices are registered * after their parents. */ @@ -369,6 +370,13 @@ int sysdev_suspend(pm_message_t state) struct sysdev_driver *drv, *err_drv; int ret; + pr_debug("Checking wake-up interrupts\n"); + + /* Return error code if there are any wake-up interrupts pending */ + ret = check_wakeup_irqs(); + if (ret) + return ret; + pr_debug("Suspending System Devices\n"); list_for_each_entry_reverse(cls, &system_kset->list, kset.kobj.entry) { |