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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-01-12 23:45:04 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-01-12 23:45:04 +0100
commit25d412d932fb3289ae5b510845d523330b80bb71 (patch)
tree7234bf9bf03af4b0f1f40830169cd7219ef586ed /include
parent98feb7cc61c50fe0fa36eeb994d5db527ca9e103 (diff)
parentc713cd7f2d799c50a0721bf51d178ea9567215dd (diff)
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Merge branch 'acpi-hotplug'
* acpi-hotplug: ACPI / scan: ACPI device object sysfs attribute for _STA evaluation ACPI / hotplug / driver core: Handle containers in a special way ACPI / hotplug: Add demand_offline hotplug profile flag ACPI / bind: Move acpi_get_child() to drivers/ide/ide-acpi.c ACPI / bind: Pass struct acpi_device pointer to acpi_bind_one() ACPI / bind: Rework struct acpi_bus_type ACPI / bind: Redefine acpi_preset_companion() ACPI / bind: Redefine acpi_get_child() PCI / ACPI: Use acpi_find_child_device() for child devices lookup ACPI / bind: Simplify child device lookups ACPI / scan: Use direct recurrence for device hierarchy walks ACPI: Introduce acpi_set_device_status() ACPI / hotplug: Drop unfinished global notification handling routines ACPI / hotplug: Rework generic code to handle suprise removals ACPI / hotplug: Move container-specific code out of the core ACPI / hotplug: Make ACPI PCI root hotplug use common hotplug code ACPI / hotplug: Introduce common hotplug function acpi_device_hotplug() ACPI / hotplug: Do not fail bus and device checks for disabled hotplug ACPI / scan: Add acpi_device objects for all device nodes in the namespace ACPI / scan: Define non-empty device removal handler
Diffstat (limited to 'include')
-rw-r--r--include/acpi/acpi_bus.h36
-rw-r--r--include/linux/acpi.h6
-rw-r--r--include/linux/container.h25
3 files changed, 51 insertions, 16 deletions
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index fa42b45461ad..e4ab7be65637 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -89,17 +89,11 @@ struct acpi_device;
* -----------------
*/
-enum acpi_hotplug_mode {
- AHM_GENERIC = 0,
- AHM_CONTAINER,
- AHM_COUNT
-};
-
struct acpi_hotplug_profile {
struct kobject kobj;
+ int (*scan_dependent)(struct acpi_device *adev);
bool enabled:1;
- bool ignore:1;
- enum acpi_hotplug_mode mode;
+ bool demand_offline:1;
};
static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile(
@@ -167,8 +161,10 @@ struct acpi_device_flags {
u32 ejectable:1;
u32 power_manageable:1;
u32 match_driver:1;
+ u32 initialized:1;
+ u32 visited:1;
u32 no_hotplug:1;
- u32 reserved:26;
+ u32 reserved:24;
};
/* File System */
@@ -298,6 +294,7 @@ struct acpi_device {
struct list_head children;
struct list_head node;
struct list_head wakeup_list;
+ struct list_head del_list;
struct acpi_device_status status;
struct acpi_device_flags flags;
struct acpi_device_pnp pnp;
@@ -323,6 +320,11 @@ static inline void *acpi_driver_data(struct acpi_device *d)
#define to_acpi_device(d) container_of(d, struct acpi_device, dev)
#define to_acpi_driver(d) container_of(d, struct acpi_driver, drv)
+static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta)
+{
+ *((u32 *)&adev->status) = sta;
+}
+
/* acpi_device.dev.bus == &acpi_bus_type */
extern struct bus_type acpi_bus_type;
@@ -385,6 +387,11 @@ int acpi_match_device_ids(struct acpi_device *device,
int acpi_create_dir(struct acpi_device *);
void acpi_remove_dir(struct acpi_device *);
+static inline bool acpi_device_enumerated(struct acpi_device *adev)
+{
+ return adev && adev->flags.initialized && adev->flags.visited;
+}
+
typedef void (*acpi_hp_callback)(void *data, u32 src);
acpi_status acpi_hotplug_execute(acpi_hp_callback func, void *data, u32 src);
@@ -408,7 +415,7 @@ struct acpi_bus_type {
struct list_head list;
const char *name;
bool (*match)(struct device *dev);
- int (*find_device) (struct device *, acpi_handle *);
+ struct acpi_device * (*find_companion)(struct device *);
void (*setup)(struct device *);
void (*cleanup)(struct device *);
};
@@ -427,12 +434,9 @@ struct acpi_pci_root {
};
/* helper */
-acpi_handle acpi_find_child(acpi_handle, u64, bool);
-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);
+
+struct acpi_device *acpi_find_child_device(struct acpi_device *parent,
+ u64 address, bool check_children);
int acpi_is_root_bridge(acpi_handle);
struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 7aaf7315d33d..3e3247d95fd9 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -54,6 +54,12 @@ static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
#define ACPI_COMPANION_SET(dev, adev) ACPI_COMPANION(dev) = (adev)
#define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev))
+static inline void acpi_preset_companion(struct device *dev,
+ struct acpi_device *parent, u64 addr)
+{
+ ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL));
+}
+
static inline const char *acpi_dev_name(struct acpi_device *adev)
{
return dev_name(&adev->dev);
diff --git a/include/linux/container.h b/include/linux/container.h
new file mode 100644
index 000000000000..3c03e6fd2035
--- /dev/null
+++ b/include/linux/container.h
@@ -0,0 +1,25 @@
+/*
+ * Definitions for container bus type.
+ *
+ * Copyright (C) 2013, Intel Corporation
+ * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/device.h>
+
+/* drivers/base/power/container.c */
+extern struct bus_type container_subsys;
+
+struct container_dev {
+ struct device dev;
+ int (*offline)(struct container_dev *cdev);
+};
+
+static inline struct container_dev *to_container_dev(struct device *dev)
+{
+ return container_of(dev, struct container_dev, dev);
+}