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-rw-r--r--drivers/acpi/Kconfig8
-rw-r--r--drivers/acpi/acpi_memhotplug.c8
-rw-r--r--drivers/acpi/apei/ghes.c71
-rw-r--r--drivers/acpi/apei/hest.c5
-rw-r--r--drivers/acpi/custom_method.c2
-rw-r--r--drivers/acpi/glue.c55
-rw-r--r--drivers/acpi/internal.h8
-rw-r--r--drivers/acpi/osl.c26
-rw-r--r--drivers/acpi/pci_irq.c102
-rw-r--r--drivers/acpi/pci_root.c170
-rw-r--r--drivers/acpi/pci_slot.c13
-rw-r--r--drivers/acpi/power.c112
-rw-r--r--drivers/acpi/processor_core.c3
-rw-r--r--drivers/acpi/processor_driver.c4
-rw-r--r--drivers/acpi/scan.c12
-rw-r--r--drivers/acpi/sleep.c16
16 files changed, 350 insertions, 265 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 1a4ed64586a7..92ed9692c47e 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -266,7 +266,8 @@ config ACPI_CUSTOM_DSDT
default ACPI_CUSTOM_DSDT_FILE != ""
config ACPI_INITRD_TABLE_OVERRIDE
- bool "ACPI tables can be passed via uncompressed cpio in initrd"
+ bool "ACPI tables override via initrd"
+ depends on BLK_DEV_INITRD && X86
default n
help
This option provides functionality to override arbitrary ACPI tables
@@ -306,7 +307,7 @@ config ACPI_DEBUG_FUNC_TRACE
is about half of the penalty and is rarely useful.
config ACPI_PCI_SLOT
- tristate "PCI slot detection driver"
+ bool "PCI slot detection driver"
depends on SYSFS
default n
help
@@ -315,9 +316,6 @@ config ACPI_PCI_SLOT
i.e., segment/bus/device/function tuples, with physical slots in
the system. If you are unsure, say N.
- To compile this driver as a module, choose M here:
- the module will be called pci_slot.
-
config X86_PM_TIMER
bool "Power Management Timer Support" if EXPERT
depends on X86
diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 034d3e72aa92..da1f82b445e0 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -280,9 +280,11 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device)
static int acpi_memory_remove_memory(struct acpi_memory_device *mem_device)
{
- int result = 0;
+ int result = 0, nid;
struct acpi_memory_info *info, *n;
+ nid = acpi_get_node(mem_device->device->handle);
+
list_for_each_entry_safe(info, n, &mem_device->res_list, list) {
if (info->failed)
/* The kernel does not use this memory block */
@@ -295,7 +297,9 @@ static int acpi_memory_remove_memory(struct acpi_memory_device *mem_device)
*/
return -EBUSY;
- result = remove_memory(info->start_addr, info->length);
+ if (nid < 0)
+ nid = memory_add_physaddr_to_nid(info->start_addr);
+ result = remove_memory(nid, info->start_addr, info->length);
if (result)
return result;
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 7ae2750bb457..d668a8ae602b 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -48,8 +48,8 @@
#include <linux/genalloc.h>
#include <linux/pci.h>
#include <linux/aer.h>
-#include <acpi/apei.h>
-#include <acpi/hed.h>
+
+#include <acpi/ghes.h>
#include <asm/mce.h>
#include <asm/tlbflush.h>
#include <asm/nmi.h>
@@ -84,42 +84,6 @@
((struct acpi_hest_generic_status *) \
((struct ghes_estatus_node *)(estatus_node) + 1))
-/*
- * One struct ghes is created for each generic hardware error source.
- * It provides the context for APEI hardware error timer/IRQ/SCI/NMI
- * handler.
- *
- * estatus: memory buffer for error status block, allocated during
- * HEST parsing.
- */
-#define GHES_TO_CLEAR 0x0001
-#define GHES_EXITING 0x0002
-
-struct ghes {
- struct acpi_hest_generic *generic;
- struct acpi_hest_generic_status *estatus;
- u64 buffer_paddr;
- unsigned long flags;
- union {
- struct list_head list;
- struct timer_list timer;
- unsigned int irq;
- };
-};
-
-struct ghes_estatus_node {
- struct llist_node llnode;
- struct acpi_hest_generic *generic;
-};
-
-struct ghes_estatus_cache {
- u32 estatus_len;
- atomic_t count;
- struct acpi_hest_generic *generic;
- unsigned long long time_in;
- struct rcu_head rcu;
-};
-
bool ghes_disable;
module_param_named(disable, ghes_disable, bool, 0);
@@ -333,13 +297,6 @@ static void ghes_fini(struct ghes *ghes)
apei_unmap_generic_address(&ghes->generic->error_status_address);
}
-enum {
- GHES_SEV_NO = 0x0,
- GHES_SEV_CORRECTED = 0x1,
- GHES_SEV_RECOVERABLE = 0x2,
- GHES_SEV_PANIC = 0x3,
-};
-
static inline int ghes_severity(int severity)
{
switch (severity) {
@@ -452,7 +409,8 @@ static void ghes_clear_estatus(struct ghes *ghes)
ghes->flags &= ~GHES_TO_CLEAR;
}
-static void ghes_do_proc(const struct acpi_hest_generic_status *estatus)
+static void ghes_do_proc(struct ghes *ghes,
+ const struct acpi_hest_generic_status *estatus)
{
int sev, sec_sev;
struct acpi_hest_generic_data *gdata;
@@ -464,6 +422,8 @@ static void ghes_do_proc(const struct acpi_hest_generic_status *estatus)
CPER_SEC_PLATFORM_MEM)) {
struct cper_sec_mem_err *mem_err;
mem_err = (struct cper_sec_mem_err *)(gdata+1);
+ ghes_edac_report_mem_error(ghes, sev, mem_err);
+
#ifdef CONFIG_X86_MCE
apei_mce_report_mem_error(sev == GHES_SEV_CORRECTED,
mem_err);
@@ -682,7 +642,7 @@ static int ghes_proc(struct ghes *ghes)
if (ghes_print_estatus(NULL, ghes->generic, ghes->estatus))
ghes_estatus_cache_add(ghes->generic, ghes->estatus);
}
- ghes_do_proc(ghes->estatus);
+ ghes_do_proc(ghes, ghes->estatus);
out:
ghes_clear_estatus(ghes);
return 0;
@@ -775,7 +735,7 @@ static void ghes_proc_in_irq(struct irq_work *irq_work)
estatus = GHES_ESTATUS_FROM_NODE(estatus_node);
len = apei_estatus_len(estatus);
node_len = GHES_ESTATUS_NODE_LEN(len);
- ghes_do_proc(estatus);
+ ghes_do_proc(estatus_node->ghes, estatus);
if (!ghes_estatus_cached(estatus)) {
generic = estatus_node->generic;
if (ghes_print_estatus(NULL, generic, estatus))
@@ -864,6 +824,7 @@ static int ghes_notify_nmi(unsigned int cmd, struct pt_regs *regs)
estatus_node = (void *)gen_pool_alloc(ghes_estatus_pool,
node_len);
if (estatus_node) {
+ estatus_node->ghes = ghes;
estatus_node->generic = ghes->generic;
estatus = GHES_ESTATUS_FROM_NODE(estatus_node);
memcpy(estatus, ghes->estatus, len);
@@ -942,6 +903,11 @@ static int ghes_probe(struct platform_device *ghes_dev)
ghes = NULL;
goto err;
}
+
+ rc = ghes_edac_register(ghes, &ghes_dev->dev);
+ if (rc < 0)
+ goto err;
+
switch (generic->notify.type) {
case ACPI_HEST_NOTIFY_POLLED:
ghes->timer.function = ghes_poll_func;
@@ -954,13 +920,13 @@ static int ghes_probe(struct platform_device *ghes_dev)
if (acpi_gsi_to_irq(generic->notify.vector, &ghes->irq)) {
pr_err(GHES_PFX "Failed to map GSI to IRQ for generic hardware error source: %d\n",
generic->header.source_id);
- goto err;
+ goto err_edac_unreg;
}
if (request_irq(ghes->irq, ghes_irq_func,
0, "GHES IRQ", ghes)) {
pr_err(GHES_PFX "Failed to register IRQ for generic hardware error source: %d\n",
generic->header.source_id);
- goto err;
+ goto err_edac_unreg;
}
break;
case ACPI_HEST_NOTIFY_SCI:
@@ -986,6 +952,8 @@ static int ghes_probe(struct platform_device *ghes_dev)
platform_set_drvdata(ghes_dev, ghes);
return 0;
+err_edac_unreg:
+ ghes_edac_unregister(ghes);
err:
if (ghes) {
ghes_fini(ghes);
@@ -1038,6 +1006,9 @@ static int ghes_remove(struct platform_device *ghes_dev)
}
ghes_fini(ghes);
+
+ ghes_edac_unregister(ghes);
+
kfree(ghes);
platform_set_drvdata(ghes_dev, NULL);
diff --git a/drivers/acpi/apei/hest.c b/drivers/acpi/apei/hest.c
index 7f00cf38098f..f5ef5d54e4ac 100644
--- a/drivers/acpi/apei/hest.c
+++ b/drivers/acpi/apei/hest.c
@@ -89,7 +89,7 @@ int apei_hest_parse(apei_hest_func_t func, void *data)
struct acpi_hest_header *hest_hdr;
int i, rc, len;
- if (hest_disable)
+ if (hest_disable || !hest_tab)
return -EINVAL;
hest_hdr = (struct acpi_hest_header *)(hest_tab + 1);
@@ -216,9 +216,6 @@ void __init acpi_hest_init(void)
return;
}
- if (acpi_disabled)
- goto err;
-
status = acpi_get_table(ACPI_SIG_HEST, 0,
(struct acpi_table_header **)&hest_tab);
if (status == AE_NOT_FOUND)
diff --git a/drivers/acpi/custom_method.c b/drivers/acpi/custom_method.c
index 6adfc706a1de..12b62f2cdb3f 100644
--- a/drivers/acpi/custom_method.c
+++ b/drivers/acpi/custom_method.c
@@ -66,7 +66,7 @@ static ssize_t cm_write(struct file *file, const char __user * user_buf,
buf = NULL;
if (ACPI_FAILURE(status))
return -EINVAL;
- add_taint(TAINT_OVERRIDDEN_ACPI_TABLE);
+ add_taint(TAINT_OVERRIDDEN_ACPI_TABLE, LOCKDEP_NOW_UNRELIABLE);
}
return count;
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index ef6f155469b5..40a84cc6740c 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -36,12 +36,11 @@ int register_acpi_bus_type(struct acpi_bus_type *type)
{
if (acpi_disabled)
return -ENODEV;
- if (type && type->bus && type->find_device) {
+ if (type && type->match && type->find_device) {
down_write(&bus_type_sem);
list_add_tail(&type->list, &bus_type_list);
up_write(&bus_type_sem);
- printk(KERN_INFO PREFIX "bus type %s registered\n",
- type->bus->name);
+ printk(KERN_INFO PREFIX "bus type %s registered\n", type->name);
return 0;
}
return -ENODEV;
@@ -56,24 +55,21 @@ int unregister_acpi_bus_type(struct acpi_bus_type *type)
down_write(&bus_type_sem);
list_del_init(&type->list);
up_write(&bus_type_sem);
- printk(KERN_INFO PREFIX "ACPI bus type %s unregistered\n",
- type->bus->name);
+ printk(KERN_INFO PREFIX "bus type %s unregistered\n",
+ type->name);
return 0;
}
return -ENODEV;
}
EXPORT_SYMBOL_GPL(unregister_acpi_bus_type);
-static struct acpi_bus_type *acpi_get_bus_type(struct bus_type *type)
+static struct acpi_bus_type *acpi_get_bus_type(struct device *dev)
{
struct acpi_bus_type *tmp, *ret = NULL;
- if (!type)
- return NULL;
-
down_read(&bus_type_sem);
list_for_each_entry(tmp, &bus_type_list, list) {
- if (tmp->bus == type) {
+ if (tmp->match(dev)) {
ret = tmp;
break;
}
@@ -82,22 +78,6 @@ static struct acpi_bus_type *acpi_get_bus_type(struct bus_type *type)
return ret;
}
-static int acpi_find_bridge_device(struct device *dev, acpi_handle * handle)
-{
- struct acpi_bus_type *tmp;
- int ret = -ENODEV;
-
- down_read(&bus_type_sem);
- list_for_each_entry(tmp, &bus_type_list, list) {
- if (tmp->find_bridge && !tmp->find_bridge(dev, handle)) {
- ret = 0;
- break;
- }
- }
- up_read(&bus_type_sem);
- return ret;
-}
-
static acpi_status do_acpi_find_child(acpi_handle handle, u32 lvl_not_used,
void *addr_p, void **ret_p)
{
@@ -261,29 +241,12 @@ err:
static int acpi_platform_notify(struct device *dev)
{
- struct acpi_bus_type *type;
+ struct acpi_bus_type *type = acpi_get_bus_type(dev);
acpi_handle handle;
int ret;
ret = acpi_bind_one(dev, NULL);
- if (ret && (!dev->bus || !dev->parent)) {
- /* bridge devices genernally haven't bus or parent */
- ret = acpi_find_bridge_device(dev, &handle);
- if (!ret) {
- ret = acpi_bind_one(dev, handle);
- if (ret)
- goto out;
- }
- }
-
- type = acpi_get_bus_type(dev->bus);
- if (ret) {
- if (!type || !type->find_device) {
- DBG("No ACPI bus support for %s\n", dev_name(dev));
- ret = -EINVAL;
- goto out;
- }
-
+ if (ret && type) {
ret = type->find_device(dev, &handle);
if (ret) {
DBG("Unable to get handle for %s\n", dev_name(dev));
@@ -316,7 +279,7 @@ static int acpi_platform_notify_remove(struct device *dev)
{
struct acpi_bus_type *type;
- type = acpi_get_bus_type(dev->bus);
+ type = acpi_get_bus_type(dev);
if (type && type->cleanup)
type->cleanup(dev);
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 79092328cf06..3c94a732b4b3 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -25,8 +25,14 @@
int init_acpi_device_notify(void);
int acpi_scan_init(void);
+#ifdef CONFIG_ACPI_PCI_SLOT
+void acpi_pci_slot_init(void);
+#else
+static inline void acpi_pci_slot_init(void) { }
+#endif
void acpi_pci_root_init(void);
void acpi_pci_link_init(void);
+void acpi_pci_root_hp_init(void);
void acpi_platform_init(void);
int acpi_sysfs_init(void);
void acpi_csrt_init(void);
@@ -65,7 +71,7 @@ int acpi_extract_power_resources(union acpi_object *package, unsigned int start,
struct list_head *list);
int acpi_add_power_resource(acpi_handle handle);
void acpi_power_add_remove_device(struct acpi_device *adev, bool add);
-int acpi_power_min_system_level(struct list_head *list);
+int acpi_power_wakeup_list_init(struct list_head *list, int *system_level);
int acpi_device_sleep_wake(struct acpi_device *dev,
int enable, int sleep_state, int dev_state);
int acpi_power_get_inferred_state(struct acpi_device *device, int *state);
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 908b02d5da1b..586e7e993d3d 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -84,8 +84,7 @@ static acpi_osd_handler acpi_irq_handler;
static void *acpi_irq_context;
static struct workqueue_struct *kacpid_wq;
static struct workqueue_struct *kacpi_notify_wq;
-struct workqueue_struct *kacpi_hotplug_wq;
-EXPORT_SYMBOL(kacpi_hotplug_wq);
+static struct workqueue_struct *kacpi_hotplug_wq;
/*
* This list of permanent mappings is for memory that may be accessed from
@@ -661,7 +660,7 @@ static void acpi_table_taint(struct acpi_table_header *table)
pr_warn(PREFIX
"Override [%4.4s-%8.8s], this is unsafe: tainting kernel\n",
table->signature, table->oem_table_id);
- add_taint(TAINT_OVERRIDDEN_ACPI_TABLE);
+ add_taint(TAINT_OVERRIDDEN_ACPI_TABLE, LOCKDEP_NOW_UNRELIABLE);
}
@@ -1778,3 +1777,24 @@ void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
{
__acpi_os_prepare_sleep = func;
}
+
+void alloc_acpi_hp_work(acpi_handle handle, u32 type, void *context,
+ void (*func)(struct work_struct *work))
+{
+ struct acpi_hp_work *hp_work;
+ int ret;
+
+ hp_work = kmalloc(sizeof(*hp_work), GFP_KERNEL);
+ if (!hp_work)
+ return;
+
+ hp_work->handle = handle;
+ hp_work->type = type;
+ hp_work->context = context;
+
+ INIT_WORK(&hp_work->work, func);
+ ret = queue_work(kacpi_hotplug_wq, &hp_work->work);
+ if (!ret)
+ kfree(hp_work);
+}
+EXPORT_SYMBOL_GPL(alloc_acpi_hp_work);
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index 68a921d03247..41c5e1b799ef 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -53,9 +53,6 @@ struct acpi_prt_entry {
u32 index; /* GSI, or link _CRS index */
};
-static LIST_HEAD(acpi_prt_list);
-static DEFINE_SPINLOCK(acpi_prt_lock);
-
static inline char pin_name(int pin)
{
return 'A' + pin - 1;
@@ -65,28 +62,6 @@ static inline char pin_name(int pin)
PCI IRQ Routing Table (PRT) Support
-------------------------------------------------------------------------- */
-static struct acpi_prt_entry *acpi_pci_irq_find_prt_entry(struct pci_dev *dev,
- int pin)
-{
- struct acpi_prt_entry *entry;
- int segment = pci_domain_nr(dev->bus);
- int bus = dev->bus->number;
- int device = PCI_SLOT(dev->devfn);
-
- spin_lock(&acpi_prt_lock);
- list_for_each_entry(entry, &acpi_prt_list, list) {
- if ((segment == entry->id.segment)
- && (bus == entry->id.bus)
- && (device == entry->id.device)
- && (pin == entry->pin)) {
- spin_unlock(&acpi_prt_lock);
- return entry;
- }
- }
- spin_unlock(&acpi_prt_lock);
- return NULL;
-}
-
/* http://bugzilla.kernel.org/show_bug.cgi?id=4773 */
static const struct dmi_system_id medion_md9580[] = {
{
@@ -184,11 +159,19 @@ static void do_prt_fixups(struct acpi_prt_entry *entry,
}
}
-static int acpi_pci_irq_add_entry(acpi_handle handle, int segment, int bus,
- struct acpi_pci_routing_table *prt)
+static int acpi_pci_irq_check_entry(acpi_handle handle, struct pci_dev *dev,
+ int pin, struct acpi_pci_routing_table *prt,
+ struct acpi_prt_entry **entry_ptr)
{
+ int segment = pci_domain_nr(dev->bus);
+ int bus = dev->bus->number;
+ int device = PCI_SLOT(dev->devfn);
struct acpi_prt_entry *entry;
+ if (((prt->address >> 16) & 0xffff) != device ||
+ prt->pin + 1 != pin)
+ return -ENODEV;
+
entry = kzalloc(sizeof(struct acpi_prt_entry), GFP_KERNEL);
if (!entry)
return -ENOMEM;
@@ -237,43 +220,37 @@ static int acpi_pci_irq_add_entry(acpi_handle handle, int segment, int bus,
entry->id.device, pin_name(entry->pin),
prt->source, entry->index));
- spin_lock(&acpi_prt_lock);
- list_add_tail(&entry->list, &acpi_prt_list);
- spin_unlock(&acpi_prt_lock);
+ *entry_ptr = entry;
return 0;
}
-int acpi_pci_irq_add_prt(acpi_handle handle, int segment, int bus)
+static int acpi_pci_irq_find_prt_entry(struct pci_dev *dev,
+ int pin, struct acpi_prt_entry **entry_ptr)
{
acpi_status status;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_pci_routing_table *entry;
+ acpi_handle handle = NULL;
- /* 'handle' is the _PRT's parent (root bridge or PCI-PCI bridge) */
- status = acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
- if (ACPI_FAILURE(status))
- return -ENODEV;
-
- printk(KERN_DEBUG "ACPI: PCI Interrupt Routing Table [%s._PRT]\n",
- (char *) buffer.pointer);
-
- kfree(buffer.pointer);
+ if (dev->bus->bridge)
+ handle = ACPI_HANDLE(dev->bus->bridge);
- buffer.length = ACPI_ALLOCATE_BUFFER;
- buffer.pointer = NULL;
+ if (!handle)
+ return -ENODEV;
+ /* 'handle' is the _PRT's parent (root bridge or PCI-PCI bridge) */
status = acpi_get_irq_routing_table(handle, &buffer);
if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PRT [%s]",
- acpi_format_exception(status)));
kfree(buffer.pointer);
return -ENODEV;
}
entry = buffer.pointer;
while (entry && (entry->length > 0)) {
- acpi_pci_irq_add_entry(handle, segment, bus, entry);
+ if (!acpi_pci_irq_check_entry(handle, dev, pin,
+ entry, entry_ptr))
+ break;
entry = (struct acpi_pci_routing_table *)
((unsigned long)entry + entry->length);
}
@@ -282,23 +259,6 @@ int acpi_pci_irq_add_prt(acpi_handle handle, int segment, int bus)
return 0;
}
-void acpi_pci_irq_del_prt(int segment, int bus)
-{
- struct acpi_prt_entry *entry, *tmp;
-
- printk(KERN_DEBUG
- "ACPI: Delete PCI Interrupt Routing Table for %04x:%02x\n",
- segment, bus);
- spin_lock(&acpi_prt_lock);
- list_for_each_entry_safe(entry, tmp, &acpi_prt_list, list) {
- if (segment == entry->id.segment && bus == entry->id.bus) {
- list_del(&entry->list);
- kfree(entry);
- }
- }
- spin_unlock(&acpi_prt_lock);
-}
-
/* --------------------------------------------------------------------------
PCI Interrupt Routing Support
-------------------------------------------------------------------------- */
@@ -359,12 +319,13 @@ static int acpi_reroute_boot_interrupt(struct pci_dev *dev,
static struct acpi_prt_entry *acpi_pci_irq_lookup(struct pci_dev *dev, int pin)
{
- struct acpi_prt_entry *entry;
+ struct acpi_prt_entry *entry = NULL;
struct pci_dev *bridge;
u8 bridge_pin, orig_pin = pin;
+ int ret;
- entry = acpi_pci_irq_find_prt_entry(dev, pin);
- if (entry) {
+ ret = acpi_pci_irq_find_prt_entry(dev, pin, &entry);
+ if (!ret && entry) {
#ifdef CONFIG_X86_IO_APIC
acpi_reroute_boot_interrupt(dev, entry);
#endif /* CONFIG_X86_IO_APIC */
@@ -373,7 +334,7 @@ static struct acpi_prt_entry *acpi_pci_irq_lookup(struct pci_dev *dev, int pin)
return entry;
}
- /*
+ /*
* Attempt to derive an IRQ for this device from a parent bridge's
* PCI interrupt routing entry (eg. yenta bridge and add-in card bridge).
*/
@@ -393,8 +354,8 @@ static struct acpi_prt_entry *acpi_pci_irq_lookup(struct pci_dev *dev, int pin)
pin = bridge_pin;
}
- entry = acpi_pci_irq_find_prt_entry(bridge, pin);
- if (entry) {
+ ret = acpi_pci_irq_find_prt_entry(bridge, pin, &entry);
+ if (!ret && entry) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Derived GSI for %s INT %c from %s\n",
pci_name(dev), pin_name(orig_pin),
@@ -470,6 +431,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
dev_warn(&dev->dev, "PCI INT %c: no GSI\n",
pin_name(pin));
}
+
return 0;
}
@@ -477,6 +439,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
if (rc < 0) {
dev_warn(&dev->dev, "PCI INT %c: failed to register GSI\n",
pin_name(pin));
+ kfree(entry);
return rc;
}
dev->irq = rc;
@@ -491,6 +454,7 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
(triggering == ACPI_LEVEL_SENSITIVE) ? "level" : "edge",
(polarity == ACPI_ACTIVE_LOW) ? "low" : "high", dev->irq);
+ kfree(entry);
return 0;
}
@@ -513,6 +477,8 @@ void acpi_pci_irq_disable(struct pci_dev *dev)
else
gsi = entry->index;
+ kfree(entry);
+
/*
* TBD: It might be worth clearing dev->irq by magic constant
* (e.g. PCI_UNDEFINED_IRQ).
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index b3cc69c5caf1..0ac546d5e53f 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -103,24 +103,6 @@ void acpi_pci_unregister_driver(struct acpi_pci_driver *driver)
}
EXPORT_SYMBOL(acpi_pci_unregister_driver);
-acpi_handle acpi_get_pci_rootbridge_handle(unsigned int seg, unsigned int bus)
-{
- struct acpi_pci_root *root;
- acpi_handle handle = NULL;
-
- mutex_lock(&acpi_pci_root_lock);
- list_for_each_entry(root, &acpi_pci_roots, node)
- if ((root->segment == (u16) seg) &&
- (root->secondary.start == (u16) bus)) {
- handle = root->device->handle;
- break;
- }
- mutex_unlock(&acpi_pci_root_lock);
- return handle;
-}
-
-EXPORT_SYMBOL_GPL(acpi_get_pci_rootbridge_handle);
-
/**
* acpi_is_root_bridge - determine whether an ACPI CA node is a PCI root bridge
* @handle - the ACPI CA node in question.
@@ -431,7 +413,6 @@ static int acpi_pci_root_add(struct acpi_device *device,
acpi_status status;
int result;
struct acpi_pci_root *root;
- acpi_handle handle;
struct acpi_pci_driver *driver;
u32 flags, base_flags;
bool is_osc_granted = false;
@@ -486,16 +467,6 @@ static int acpi_pci_root_add(struct acpi_device *device,
acpi_device_name(device), acpi_device_bid(device),
root->segment, &root->secondary);
- /*
- * PCI Routing Table
- * -----------------
- * Evaluate and parse _PRT, if exists.
- */
- status = acpi_get_handle(device->handle, METHOD_NAME__PRT, &handle);
- if (ACPI_SUCCESS(status))
- result = acpi_pci_irq_add_prt(device->handle, root->segment,
- root->secondary.start);
-
root->mcfg_addr = acpi_pci_root_get_mcfg_addr(device->handle);
/*
@@ -597,8 +568,10 @@ static int acpi_pci_root_add(struct acpi_device *device,
if (device->wakeup.flags.run_wake)
device_set_run_wake(root->bus->bridge, true);
- if (system_state != SYSTEM_BOOTING)
+ if (system_state != SYSTEM_BOOTING) {
+ pcibios_resource_survey_bus(root->bus);
pci_assign_unassigned_bus_resources(root->bus);
+ }
mutex_lock(&acpi_pci_root_lock);
list_for_each_entry(driver, &acpi_pci_drivers, node)
@@ -618,7 +591,6 @@ out_del_root:
list_del(&root->node);
mutex_unlock(&acpi_pci_root_lock);
- acpi_pci_irq_del_prt(root->segment, root->secondary.start);
end:
kfree(root);
return result;
@@ -626,8 +598,6 @@ end:
static void acpi_pci_root_remove(struct acpi_device *device)
{
- acpi_status status;
- acpi_handle handle;
struct acpi_pci_root *root = acpi_driver_data(device);
struct acpi_pci_driver *driver;
@@ -642,10 +612,6 @@ static void acpi_pci_root_remove(struct acpi_device *device)
device_set_run_wake(root->bus->bridge, false);
pci_acpi_remove_bus_pm_notifier(device);
- status = acpi_get_handle(device->handle, METHOD_NAME__PRT, &handle);
- if (ACPI_SUCCESS(status))
- acpi_pci_irq_del_prt(root->segment, root->secondary.start);
-
pci_remove_root_bus(root->bus);
mutex_lock(&acpi_pci_root_lock);
@@ -663,3 +629,133 @@ void __init acpi_pci_root_init(void)
acpi_scan_add_handler(&pci_root_handler);
}
}
+/* Support root bridge hotplug */
+
+static void handle_root_bridge_insertion(acpi_handle handle)
+{
+ struct acpi_device *device;
+
+ if (!acpi_bus_get_device(handle, &device)) {
+ printk(KERN_DEBUG "acpi device exists...\n");
+ return;
+ }
+
+ if (acpi_bus_scan(handle))
+ printk(KERN_ERR "cannot add bridge to acpi list\n");
+}
+
+static void handle_root_bridge_removal(struct acpi_device *device)
+{
+ struct acpi_eject_event *ej_event;
+
+ ej_event = kmalloc(sizeof(*ej_event), GFP_KERNEL);
+ if (!ej_event) {
+ /* Inform firmware the hot-remove operation has error */
+ (void) acpi_evaluate_hotplug_ost(device->handle,
+ ACPI_NOTIFY_EJECT_REQUEST,
+ ACPI_OST_SC_NON_SPECIFIC_FAILURE,
+ NULL);
+ return;
+ }
+
+ ej_event->device = device;
+ ej_event->event = ACPI_NOTIFY_EJECT_REQUEST;
+
+ acpi_bus_hot_remove_device(ej_event);
+}
+
+static void _handle_hotplug_event_root(struct work_struct *work)
+{
+ struct acpi_pci_root *root;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER };
+ struct acpi_hp_work *hp_work;
+ acpi_handle handle;
+ u32 type;
+
+ hp_work = container_of(work, struct acpi_hp_work, work);
+ handle = hp_work->handle;
+ type = hp_work->type;
+
+ root = acpi_pci_find_root(handle);
+
+ acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
+
+ switch (type) {
+ case ACPI_NOTIFY_BUS_CHECK:
+ /* bus enumerate */
+ printk(KERN_DEBUG "%s: Bus check notify on %s\n", __func__,
+ (char *)buffer.pointer);
+ if (!root)
+ handle_root_bridge_insertion(handle);
+
+ break;
+
+ case ACPI_NOTIFY_DEVICE_CHECK:
+ /* device check */
+ printk(KERN_DEBUG "%s: Device check notify on %s\n", __func__,
+ (char *)buffer.pointer);
+ if (!root)
+ handle_root_bridge_insertion(handle);
+ break;
+
+ case ACPI_NOTIFY_EJECT_REQUEST:
+ /* request device eject */
+ printk(KERN_DEBUG "%s: Device eject notify on %s\n", __func__,
+ (char *)buffer.pointer);
+ if (root)
+ handle_root_bridge_removal(root->device);
+ break;
+ default:
+ printk(KERN_WARNING "notify_handler: unknown event type 0x%x for %s\n",
+ type, (char *)buffer.pointer);
+ break;
+ }
+
+ kfree(hp_work); /* allocated in handle_hotplug_event_bridge */
+ kfree(buffer.pointer);
+}
+
+static void handle_hotplug_event_root(acpi_handle handle, u32 type,
+ void *context)
+{
+ alloc_acpi_hp_work(handle, type, context,
+ _handle_hotplug_event_root);
+}
+
+static acpi_status __init
+find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv)
+{
+ acpi_status status;
+ char objname[64];
+ struct acpi_buffer buffer = { .length = sizeof(objname),
+ .pointer = objname };
+ int *count = (int *)context;
+
+ if (!acpi_is_root_bridge(handle))
+ return AE_OK;
+
+ (*count)++;
+
+ acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
+
+ status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
+ handle_hotplug_event_root, NULL);
+ if (ACPI_FAILURE(status))
+ printk(KERN_DEBUG "acpi root: %s notify handler is not installed, exit status: %u\n",
+ objname, (unsigned int)status);
+ else
+ printk(KERN_DEBUG "acpi root: %s notify handler is installed\n",
+ objname);
+
+ return AE_OK;
+}
+
+void __init acpi_pci_root_hp_init(void)
+{
+ int num = 0;
+
+ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
+ ACPI_UINT32_MAX, find_root_bridges, NULL, &num, NULL);
+
+ printk(KERN_DEBUG "Found %d acpi root devices\n", num);
+}
diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
index 2c630c006c2f..cd1434eb1de8 100644
--- a/drivers/acpi/pci_slot.c
+++ b/drivers/acpi/pci_slot.c
@@ -329,19 +329,8 @@ static struct dmi_system_id acpi_pci_slot_dmi_table[] __initdata = {
{}
};
-static int __init
-acpi_pci_slot_init(void)
+void __init acpi_pci_slot_init(void)
{
dmi_check_system(acpi_pci_slot_dmi_table);
acpi_pci_register_driver(&acpi_pci_slot_driver);
- return 0;
}
-
-static void __exit
-acpi_pci_slot_exit(void)
-{
- acpi_pci_unregister_driver(&acpi_pci_slot_driver);
-}
-
-module_init(acpi_pci_slot_init);
-module_exit(acpi_pci_slot_exit);
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index b820528a5fa3..34f5ef11d427 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -73,6 +73,7 @@ struct acpi_power_resource {
u32 system_level;
u32 order;
unsigned int ref_count;
+ bool wakeup_enabled;
struct mutex resource_lock;
};
@@ -272,11 +273,9 @@ static int __acpi_power_on(struct acpi_power_resource *resource)
return 0;
}
-static int acpi_power_on(struct acpi_power_resource *resource)
+static int acpi_power_on_unlocked(struct acpi_power_resource *resource)
{
- int result = 0;;
-
- mutex_lock(&resource->resource_lock);
+ int result = 0;
if (resource->ref_count++) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -293,9 +292,16 @@ static int acpi_power_on(struct acpi_power_resource *resource)
schedule_work(&dep->work);
}
}
+ return result;
+}
- mutex_unlock(&resource->resource_lock);
+static int acpi_power_on(struct acpi_power_resource *resource)
+{
+ int result;
+ mutex_lock(&resource->resource_lock);
+ result = acpi_power_on_unlocked(resource);
+ mutex_unlock(&resource->resource_lock);
return result;
}
@@ -313,17 +319,15 @@ static int __acpi_power_off(struct acpi_power_resource *resource)
return 0;
}
-static int acpi_power_off(struct acpi_power_resource *resource)
+static int acpi_power_off_unlocked(struct acpi_power_resource *resource)
{
int result = 0;
- mutex_lock(&resource->resource_lock);
-
if (!resource->ref_count) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Power resource [%s] already off",
resource->name));
- goto unlock;
+ return 0;
}
if (--resource->ref_count) {
@@ -335,10 +339,16 @@ static int acpi_power_off(struct acpi_power_resource *resource)
if (result)
resource->ref_count++;
}
+ return result;
+}
- unlock:
- mutex_unlock(&resource->resource_lock);
+static int acpi_power_off(struct acpi_power_resource *resource)
+{
+ int result;
+ mutex_lock(&resource->resource_lock);
+ result = acpi_power_off_unlocked(resource);
+ mutex_unlock(&resource->resource_lock);
return result;
}
@@ -521,18 +531,35 @@ void acpi_power_add_remove_device(struct acpi_device *adev, bool add)
}
}
-int acpi_power_min_system_level(struct list_head *list)
+int acpi_power_wakeup_list_init(struct list_head *list, int *system_level_p)
{
struct acpi_power_resource_entry *entry;
int system_level = 5;
list_for_each_entry(entry, list, node) {
struct acpi_power_resource *resource = entry->resource;
+ acpi_handle handle = resource->device.handle;
+ int result;
+ int state;
+ mutex_lock(&resource->resource_lock);
+
+ result = acpi_power_get_state(handle, &state);
+ if (result) {
+ mutex_unlock(&resource->resource_lock);
+ return result;
+ }
+ if (state == ACPI_POWER_RESOURCE_STATE_ON) {
+ resource->ref_count++;
+ resource->wakeup_enabled = true;
+ }
if (system_level > resource->system_level)
system_level = resource->system_level;
+
+ mutex_unlock(&resource->resource_lock);
}
- return system_level;
+ *system_level_p = system_level;
+ return 0;
}
/* --------------------------------------------------------------------------
@@ -610,6 +637,7 @@ int acpi_device_sleep_wake(struct acpi_device *dev,
*/
int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
{
+ struct acpi_power_resource_entry *entry;
int err = 0;
if (!dev || !dev->wakeup.flags.valid)
@@ -620,17 +648,31 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
if (dev->wakeup.prepare_count++)
goto out;
- err = acpi_power_on_list(&dev->wakeup.resources);
- if (err) {
- dev_err(&dev->dev, "Cannot turn wakeup power resources on\n");
- dev->wakeup.flags.valid = 0;
- } else {
- /*
- * Passing 3 as the third argument below means the device may be
- * put into arbitrary power state afterward.
- */
- err = acpi_device_sleep_wake(dev, 1, sleep_state, 3);
+ list_for_each_entry(entry, &dev->wakeup.resources, node) {
+ struct acpi_power_resource *resource = entry->resource;
+
+ mutex_lock(&resource->resource_lock);
+
+ if (!resource->wakeup_enabled) {
+ err = acpi_power_on_unlocked(resource);
+ if (!err)
+ resource->wakeup_enabled = true;
+ }
+
+ mutex_unlock(&resource->resource_lock);
+
+ if (err) {
+ dev_err(&dev->dev,
+ "Cannot turn wakeup power resources on\n");
+ dev->wakeup.flags.valid = 0;
+ goto out;
+ }
}
+ /*
+ * Passing 3 as the third argument below means the device may be
+ * put into arbitrary power state afterward.
+ */
+ err = acpi_device_sleep_wake(dev, 1, sleep_state, 3);
if (err)
dev->wakeup.prepare_count = 0;
@@ -647,6 +689,7 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
*/
int acpi_disable_wakeup_device_power(struct acpi_device *dev)
{
+ struct acpi_power_resource_entry *entry;
int err = 0;
if (!dev || !dev->wakeup.flags.valid)
@@ -668,10 +711,25 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev)
if (err)
goto out;
- err = acpi_power_off_list(&dev->wakeup.resources);
- if (err) {
- dev_err(&dev->dev, "Cannot turn wakeup power resources off\n");
- dev->wakeup.flags.valid = 0;
+ list_for_each_entry(entry, &dev->wakeup.resources, node) {
+ struct acpi_power_resource *resource = entry->resource;
+
+ mutex_lock(&resource->resource_lock);
+
+ if (resource->wakeup_enabled) {
+ err = acpi_power_off_unlocked(resource);
+ if (!err)
+ resource->wakeup_enabled = false;
+ }
+
+ mutex_unlock(&resource->resource_lock);
+
+ if (err) {
+ dev_err(&dev->dev,
+ "Cannot turn wakeup power resources off\n");
+ dev->wakeup.flags.valid = 0;
+ break;
+ }
}
out:
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index eff722278ff5..164d49569aeb 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -158,8 +158,7 @@ static int map_mat_entry(acpi_handle handle, int type, u32 acpi_id)
}
exit:
- if (buffer.pointer)
- kfree(buffer.pointer);
+ kfree(buffer.pointer);
return apic_id;
}
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index cbf1f122666b..bec717ffd25f 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -45,6 +45,7 @@
#include <linux/cpuidle.h>
#include <linux/slab.h>
#include <linux/acpi.h>
+#include <linux/memory_hotplug.h>
#include <asm/io.h>
#include <asm/cpu.h>
@@ -558,7 +559,7 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device)
return 0;
#endif
- BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0));
+ BUG_ON(pr->id >= nr_cpu_ids);
/*
* Buggy BIOS check
@@ -641,6 +642,7 @@ static int acpi_processor_remove(struct acpi_device *device)
per_cpu(processors, pr->id) = NULL;
per_cpu(processor_device_array, pr->id) = NULL;
+ try_offline_node(cpu_to_node(pr->id));
free:
free_cpumask_var(pr->throttling.shared_cpu_map);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index daee7497efd3..5e7e991717d7 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1002,7 +1002,14 @@ static int acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
if (!list_empty(&wakeup->resources)) {
int sleep_state;
- sleep_state = acpi_power_min_system_level(&wakeup->resources);
+ err = acpi_power_wakeup_list_init(&wakeup->resources,
+ &sleep_state);
+ if (err) {
+ acpi_handle_warn(handle, "Retrieving current states "
+ "of wakeup power resources failed\n");
+ acpi_power_resources_list_free(&wakeup->resources);
+ goto out;
+ }
if (sleep_state < wakeup->sleep_state) {
acpi_handle_warn(handle, "Overriding _PRW sleep state "
"(S%d) by S%d from power resources\n",
@@ -1783,6 +1790,7 @@ int __init acpi_scan_init(void)
acpi_platform_init();
acpi_csrt_init();
acpi_container_init();
+ acpi_pci_slot_init();
mutex_lock(&acpi_scan_lock);
/*
@@ -1804,6 +1812,8 @@ int __init acpi_scan_init(void)
acpi_update_all_gpes();
+ acpi_pci_root_hp_init();
+
out:
mutex_unlock(&acpi_scan_lock);
return result;
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 6d3a06a629a1..24213033fbae 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -599,7 +599,6 @@ static void acpi_sleep_suspend_setup(void)
status = acpi_get_sleep_type_data(i, &type_a, &type_b);
if (ACPI_SUCCESS(status)) {
sleep_states[i] = 1;
- pr_cont(" S%d", i);
}
}
@@ -742,7 +741,6 @@ static void acpi_sleep_hibernate_setup(void)
hibernation_set_ops(old_suspend_ordering ?
&acpi_hibernation_ops_old : &acpi_hibernation_ops);
sleep_states[ACPI_STATE_S4] = 1;
- pr_cont(KERN_CONT " S4");
if (nosigcheck)
return;
@@ -788,6 +786,9 @@ int __init acpi_sleep_init(void)
{
acpi_status status;
u8 type_a, type_b;
+ char supported[ACPI_S_STATE_COUNT * 3 + 1];
+ char *pos = supported;
+ int i;
if (acpi_disabled)
return 0;
@@ -795,7 +796,6 @@ int __init acpi_sleep_init(void)
acpi_sleep_dmi_check();
sleep_states[ACPI_STATE_S0] = 1;
- pr_info(PREFIX "(supports S0");
acpi_sleep_suspend_setup();
acpi_sleep_hibernate_setup();
@@ -803,11 +803,17 @@ int __init acpi_sleep_init(void)
status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b);
if (ACPI_SUCCESS(status)) {
sleep_states[ACPI_STATE_S5] = 1;
- pr_cont(" S5");
pm_power_off_prepare = acpi_power_off_prepare;
pm_power_off = acpi_power_off;
}
- pr_cont(")\n");
+
+ supported[0] = 0;
+ for (i = 0; i < ACPI_S_STATE_COUNT; i++) {
+ if (sleep_states[i])
+ pos += sprintf(pos, " S%d", i);
+ }
+ pr_info(PREFIX "(supports%s)\n", supported);
+
/*
* Register the tts_notifier to reboot notifier list so that the _TTS
* object can also be evaluated when the system enters S5.
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-17 02:37:08 +0300