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-rw-r--r--drivers/acpi/ac.c1
-rw-r--r--drivers/acpi/acpica/tbxface.c17
-rw-r--r--drivers/acpi/battery.c1
-rw-r--r--drivers/acpi/button.c3
-rw-r--r--drivers/acpi/dock.c2
-rw-r--r--drivers/acpi/event.c6
-rw-r--r--drivers/acpi/fan.c2
-rw-r--r--drivers/acpi/osl.c13
-rw-r--r--drivers/acpi/pci_root.c180
-rw-r--r--drivers/acpi/processor_core.c2
-rw-r--r--drivers/acpi/processor_perflib.c4
-rw-r--r--drivers/acpi/sbs.c1
-rw-r--r--drivers/acpi/tables.c20
-rw-r--r--drivers/acpi/thermal.c4
-rw-r--r--drivers/acpi/video.c5
15 files changed, 221 insertions, 40 deletions
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 9b917dac773..88e42abf5d8 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -191,7 +191,6 @@ static int acpi_ac_add_fs(struct acpi_device *device)
acpi_ac_dir);
if (!acpi_device_dir(device))
return -ENODEV;
- acpi_device_dir(device)->owner = THIS_MODULE;
}
/* 'state' [R] */
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index c3e841f3cde..ab0aff3c7d6 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -365,7 +365,7 @@ ACPI_EXPORT_SYMBOL(acpi_unload_table_id)
/*******************************************************************************
*
- * FUNCTION: acpi_get_table
+ * FUNCTION: acpi_get_table_with_size
*
* PARAMETERS: Signature - ACPI signature of needed table
* Instance - Which instance (for SSDTs)
@@ -377,8 +377,9 @@ ACPI_EXPORT_SYMBOL(acpi_unload_table_id)
*
*****************************************************************************/
acpi_status
-acpi_get_table(char *signature,
- u32 instance, struct acpi_table_header **out_table)
+acpi_get_table_with_size(char *signature,
+ u32 instance, struct acpi_table_header **out_table,
+ acpi_size *tbl_size)
{
u32 i;
u32 j;
@@ -408,6 +409,7 @@ acpi_get_table(char *signature,
acpi_tb_verify_table(&acpi_gbl_root_table_list.tables[i]);
if (ACPI_SUCCESS(status)) {
*out_table = acpi_gbl_root_table_list.tables[i].pointer;
+ *tbl_size = acpi_gbl_root_table_list.tables[i].length;
}
if (!acpi_gbl_permanent_mmap) {
@@ -420,6 +422,15 @@ acpi_get_table(char *signature,
return (AE_NOT_FOUND);
}
+acpi_status
+acpi_get_table(char *signature,
+ u32 instance, struct acpi_table_header **out_table)
+{
+ acpi_size tbl_size;
+
+ return acpi_get_table_with_size(signature,
+ instance, out_table, &tbl_size);
+}
ACPI_EXPORT_SYMBOL(acpi_get_table)
/*******************************************************************************
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 69cbc57c2d1..3bcb5bfc45d 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -760,7 +760,6 @@ static int acpi_battery_add_fs(struct acpi_device *device)
acpi_battery_dir);
if (!acpi_device_dir(device))
return -ENODEV;
- acpi_device_dir(device)->owner = THIS_MODULE;
}
for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) {
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 171fd914f43..c2f06069dcd 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -200,12 +200,10 @@ static int acpi_button_add_fs(struct acpi_device *device)
if (!entry)
return -ENODEV;
- entry->owner = THIS_MODULE;
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), entry);
if (!acpi_device_dir(device))
return -ENODEV;
- acpi_device_dir(device)->owner = THIS_MODULE;
/* 'info' [R] */
entry = proc_create_data(ACPI_BUTTON_FILE_INFO,
@@ -522,7 +520,6 @@ static int __init acpi_button_init(void)
acpi_button_dir = proc_mkdir(ACPI_BUTTON_CLASS, acpi_root_dir);
if (!acpi_button_dir)
return -ENODEV;
- acpi_button_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&acpi_button_driver);
if (result < 0) {
remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir);
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 35094f230b1..7af7db1ba8c 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -977,7 +977,7 @@ static int dock_add(acpi_handle handle)
sizeof(struct dock_station *));
/* we want the dock device to send uevents */
- dock_device->dev.uevent_suppress = 0;
+ dev_set_uevent_suppress(&dock_device->dev, 0);
if (is_dock(handle))
dock_station->flags |= DOCK_IS_DOCK;
diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index 0c24bd4d656..aeb7e5fb4a0 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -235,11 +235,7 @@ int acpi_bus_generate_netlink_event(const char *device_class,
return result;
}
- result =
- genlmsg_multicast(skb, 0, acpi_event_mcgrp.id, GFP_ATOMIC);
- if (result)
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Failed to send a Genetlink message!\n"));
+ genlmsg_multicast(skb, 0, acpi_event_mcgrp.id, GFP_ATOMIC);
return 0;
}
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index eaaee1660bd..8a02944bf92 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -193,7 +193,6 @@ static int acpi_fan_add_fs(struct acpi_device *device)
acpi_fan_dir);
if (!acpi_device_dir(device))
return -ENODEV;
- acpi_device_dir(device)->owner = THIS_MODULE;
}
/* 'status' [R/W] */
@@ -347,7 +346,6 @@ static int __init acpi_fan_init(void)
acpi_fan_dir = proc_mkdir(ACPI_FAN_CLASS, acpi_root_dir);
if (!acpi_fan_dir)
return -ENODEV;
- acpi_fan_dir->owner = THIS_MODULE;
#endif
result = acpi_bus_register_driver(&acpi_fan_driver);
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 1e35f342957..eb8980d6736 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -272,14 +272,21 @@ acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
}
EXPORT_SYMBOL_GPL(acpi_os_map_memory);
-void acpi_os_unmap_memory(void __iomem * virt, acpi_size size)
+void __ref acpi_os_unmap_memory(void __iomem *virt, acpi_size size)
{
- if (acpi_gbl_permanent_mmap) {
+ if (acpi_gbl_permanent_mmap)
iounmap(virt);
- }
+ else
+ __acpi_unmap_table(virt, size);
}
EXPORT_SYMBOL_GPL(acpi_os_unmap_memory);
+void __init early_acpi_os_unmap_memory(void __iomem *virt, acpi_size size)
+{
+ if (!acpi_gbl_permanent_mmap)
+ __acpi_unmap_table(virt, size);
+}
+
#ifdef ACPI_FUTURE_USAGE
acpi_status
acpi_os_get_physical_address(void *virt, acpi_physical_address * phys)
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 5b38a026d12..196f97d0095 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -66,11 +66,18 @@ struct acpi_pci_root {
struct acpi_device * device;
struct acpi_pci_id id;
struct pci_bus *bus;
+
+ u32 osc_support_set; /* _OSC state of support bits */
+ u32 osc_control_set; /* _OSC state of control bits */
+ u32 osc_control_qry; /* the latest _OSC query result */
+
+ u32 osc_queried:1; /* has _OSC control been queried? */
};
static LIST_HEAD(acpi_pci_roots);
static struct acpi_pci_driver *sub_driver;
+static DEFINE_MUTEX(osc_lock);
int acpi_pci_register_driver(struct acpi_pci_driver *driver)
{
@@ -185,6 +192,175 @@ static void acpi_pci_bridge_scan(struct acpi_device *device)
}
}
+static u8 OSC_UUID[16] = {0x5B, 0x4D, 0xDB, 0x33, 0xF7, 0x1F, 0x1C, 0x40,
+ 0x96, 0x57, 0x74, 0x41, 0xC0, 0x3D, 0xD7, 0x66};
+
+static acpi_status acpi_pci_run_osc(acpi_handle handle,
+ const u32 *capbuf, u32 *retval)
+{
+ acpi_status status;
+ struct acpi_object_list input;
+ union acpi_object in_params[4];
+ struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL};
+ union acpi_object *out_obj;
+ u32 errors;
+
+ /* Setting up input parameters */
+ input.count = 4;
+ input.pointer = in_params;
+ in_params[0].type = ACPI_TYPE_BUFFER;
+ in_params[0].buffer.length = 16;
+ in_params[0].buffer.pointer = OSC_UUID;
+ in_params[1].type = ACPI_TYPE_INTEGER;
+ in_params[1].integer.value = 1;
+ in_params[2].type = ACPI_TYPE_INTEGER;
+ in_params[2].integer.value = 3;
+ in_params[3].type = ACPI_TYPE_BUFFER;
+ in_params[3].buffer.length = 12;
+ in_params[3].buffer.pointer = (u8 *)capbuf;
+
+ status = acpi_evaluate_object(handle, "_OSC", &input, &output);
+ if (ACPI_FAILURE(status))
+ return status;
+
+ if (!output.length)
+ return AE_NULL_OBJECT;
+
+ out_obj = output.pointer;
+ if (out_obj->type != ACPI_TYPE_BUFFER) {
+ printk(KERN_DEBUG "_OSC evaluation returned wrong type\n");
+ status = AE_TYPE;
+ goto out_kfree;
+ }
+ /* Need to ignore the bit0 in result code */
+ errors = *((u32 *)out_obj->buffer.pointer) & ~(1 << 0);
+ if (errors) {
+ if (errors & OSC_REQUEST_ERROR)
+ printk(KERN_DEBUG "_OSC request failed\n");
+ if (errors & OSC_INVALID_UUID_ERROR)
+ printk(KERN_DEBUG "_OSC invalid UUID\n");
+ if (errors & OSC_INVALID_REVISION_ERROR)
+ printk(KERN_DEBUG "_OSC invalid revision\n");
+ if (errors & OSC_CAPABILITIES_MASK_ERROR) {
+ if (capbuf[OSC_QUERY_TYPE] & OSC_QUERY_ENABLE)
+ goto out_success;
+ printk(KERN_DEBUG
+ "Firmware did not grant requested _OSC control\n");
+ status = AE_SUPPORT;
+ goto out_kfree;
+ }
+ status = AE_ERROR;
+ goto out_kfree;
+ }
+out_success:
+ *retval = *((u32 *)(out_obj->buffer.pointer + 8));
+ status = AE_OK;
+
+out_kfree:
+ kfree(output.pointer);
+ return status;
+}
+
+static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root, u32 flags)
+{
+ acpi_status status;
+ u32 support_set, result, capbuf[3];
+
+ /* do _OSC query for all possible controls */
+ support_set = root->osc_support_set | (flags & OSC_SUPPORT_MASKS);
+ capbuf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE;
+ capbuf[OSC_SUPPORT_TYPE] = support_set;
+ capbuf[OSC_CONTROL_TYPE] = OSC_CONTROL_MASKS;
+
+ status = acpi_pci_run_osc(root->device->handle, capbuf, &result);
+ if (ACPI_SUCCESS(status)) {
+ root->osc_support_set = support_set;
+ root->osc_control_qry = result;
+ root->osc_queried = 1;
+ }
+ return status;
+}
+
+static acpi_status acpi_pci_osc_support(struct acpi_pci_root *root, u32 flags)
+{
+ acpi_status status;
+ acpi_handle tmp;
+
+ status = acpi_get_handle(root->device->handle, "_OSC", &tmp);
+ if (ACPI_FAILURE(status))
+ return status;
+ mutex_lock(&osc_lock);
+ status = acpi_pci_query_osc(root, flags);
+ mutex_unlock(&osc_lock);
+ return status;
+}
+
+static struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle)
+{
+ struct acpi_pci_root *root;
+ list_for_each_entry(root, &acpi_pci_roots, node) {
+ if (root->device->handle == handle)
+ return root;
+ }
+ return NULL;
+}
+
+/**
+ * acpi_pci_osc_control_set - commit requested control to Firmware
+ * @handle: acpi_handle for the target ACPI object
+ * @flags: driver's requested control bits
+ *
+ * Attempt to take control from Firmware on requested control bits.
+ **/
+acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 flags)
+{
+ acpi_status status;
+ u32 control_req, result, capbuf[3];
+ acpi_handle tmp;
+ struct acpi_pci_root *root;
+
+ status = acpi_get_handle(handle, "_OSC", &tmp);
+ if (ACPI_FAILURE(status))
+ return status;
+
+ control_req = (flags & OSC_CONTROL_MASKS);
+ if (!control_req)
+ return AE_TYPE;
+
+ root = acpi_pci_find_root(handle);
+ if (!root)
+ return AE_NOT_EXIST;
+
+ mutex_lock(&osc_lock);
+ /* No need to evaluate _OSC if the control was already granted. */
+ if ((root->osc_control_set & control_req) == control_req)
+ goto out;
+
+ /* Need to query controls first before requesting them */
+ if (!root->osc_queried) {
+ status = acpi_pci_query_osc(root, root->osc_support_set);
+ if (ACPI_FAILURE(status))
+ goto out;
+ }
+ if ((root->osc_control_qry & control_req) != control_req) {
+ printk(KERN_DEBUG
+ "Firmware did not grant requested _OSC control\n");
+ status = AE_SUPPORT;
+ goto out;
+ }
+
+ capbuf[OSC_QUERY_TYPE] = 0;
+ capbuf[OSC_SUPPORT_TYPE] = root->osc_support_set;
+ capbuf[OSC_CONTROL_TYPE] = root->osc_control_set | control_req;
+ status = acpi_pci_run_osc(handle, capbuf, &result);
+ if (ACPI_SUCCESS(status))
+ root->osc_control_set = result;
+out:
+ mutex_unlock(&osc_lock);
+ return status;
+}
+EXPORT_SYMBOL(acpi_pci_osc_control_set);
+
static int __devinit acpi_pci_root_add(struct acpi_device *device)
{
int result = 0;
@@ -217,7 +393,7 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
* PCI domains, so we indicate this in _OSC support capabilities.
*/
flags = base_flags = OSC_PCI_SEGMENT_GROUPS_SUPPORT;
- pci_acpi_osc_support(device->handle, flags);
+ acpi_pci_osc_support(root, flags);
/*
* Segment
@@ -353,7 +529,7 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
if (pci_msi_enabled())
flags |= OSC_MSI_SUPPORT;
if (flags != base_flags)
- pci_acpi_osc_support(device->handle, flags);
+ acpi_pci_osc_support(root, flags);
end:
if (result) {
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 0cc2fd31e37..fa2f7422d23 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -359,7 +359,6 @@ static int acpi_processor_add_fs(struct acpi_device *device)
if (!acpi_device_dir(device))
return -ENODEV;
}
- acpi_device_dir(device)->owner = THIS_MODULE;
/* 'info' [R] */
entry = proc_create_data(ACPI_PROCESSOR_FILE_INFO,
@@ -1137,7 +1136,6 @@ static int __init acpi_processor_init(void)
acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir);
if (!acpi_processor_dir)
return -ENOMEM;
- acpi_processor_dir->owner = THIS_MODULE;
/*
* Check whether the system is DMI table. If yes, OSPM
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 9cc769b587f..68fd3d29279 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -516,12 +516,12 @@ int acpi_processor_preregister_performance(
continue;
}
- if (!performance || !percpu_ptr(performance, i)) {
+ if (!performance || !per_cpu_ptr(performance, i)) {
retval = -EINVAL;
continue;
}
- pr->performance = percpu_ptr(performance, i);
+ pr->performance = per_cpu_ptr(performance, i);
cpumask_set_cpu(i, pr->performance->shared_cpu_map);
if (acpi_processor_get_psd(pr)) {
retval = -EINVAL;
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 6050ce48187..59afd52ccc1 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -488,7 +488,6 @@ acpi_sbs_add_fs(struct proc_dir_entry **dir,
if (!*dir) {
return -ENODEV;
}
- (*dir)->owner = THIS_MODULE;
}
/* 'info' [R] */
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index a8852952fac..fec1ae36d43 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -181,14 +181,15 @@ acpi_table_parse_entries(char *id,
struct acpi_subtable_header *entry;
unsigned int count = 0;
unsigned long table_end;
+ acpi_size tbl_size;
if (!handler)
return -EINVAL;
if (strncmp(id, ACPI_SIG_MADT, 4) == 0)
- acpi_get_table(id, acpi_apic_instance, &table_header);
+ acpi_get_table_with_size(id, acpi_apic_instance, &table_header, &tbl_size);
else
- acpi_get_table(id, 0, &table_header);
+ acpi_get_table_with_size(id, 0, &table_header, &tbl_size);
if (!table_header) {
printk(KERN_WARNING PREFIX "%4.4s not present\n", id);
@@ -206,8 +207,10 @@ acpi_table_parse_entries(char *id,
table_end) {
if (entry->type == entry_id
&& (!max_entries || count++ < max_entries))
- if (handler(entry, table_end))
+ if (handler(entry, table_end)) {
+ early_acpi_os_unmap_memory((char *)table_header, tbl_size);
return -EINVAL;
+ }
entry = (struct acpi_subtable_header *)
((unsigned long)entry + entry->length);
@@ -217,6 +220,7 @@ acpi_table_parse_entries(char *id,
"%i found\n", id, entry_id, count - max_entries, count);
}
+ early_acpi_os_unmap_memory((char *)table_header, tbl_size);
return count;
}
@@ -241,17 +245,19 @@ acpi_table_parse_madt(enum acpi_madt_type id,
int __init acpi_table_parse(char *id, acpi_table_handler handler)
{
struct acpi_table_header *table = NULL;
+ acpi_size tbl_size;
if (!handler)
return -EINVAL;
if (strncmp(id, ACPI_SIG_MADT, 4) == 0)
- acpi_get_table(id, acpi_apic_instance, &table);
+ acpi_get_table_with_size(id, acpi_apic_instance, &table, &tbl_size);
else
- acpi_get_table(id, 0, &table);
+ acpi_get_table_with_size(id, 0, &table, &tbl_size);
if (table) {
handler(table);
+ early_acpi_os_unmap_memory(table, tbl_size);
return 0;
} else
return 1;
@@ -265,8 +271,9 @@ int __init acpi_table_parse(char *id, acpi_table_handler handler)
static void __init check_multiple_madt(void)
{
struct acpi_table_header *table = NULL;
+ acpi_size tbl_size;
- acpi_get_table(ACPI_SIG_MADT, 2, &table);
+ acpi_get_table_with_size(ACPI_SIG_MADT, 2, &table, &tbl_size);
if (table) {
printk(KERN_WARNING PREFIX
"BIOS bug: multiple APIC/MADT found,"
@@ -275,6 +282,7 @@ static void __init check_multiple_madt(void)
"If \"acpi_apic_instance=%d\" works better, "
"notify linux-acpi@vger.kernel.org\n",
acpi_apic_instance ? 0 : 2);
+ early_acpi_os_unmap_memory(table, tbl_size);
} else
acpi_apic_instance = 0;
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 99e6f1f8ea4..1ba9d61ea69 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -367,7 +367,7 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
/*
* Treat freezing temperatures as invalid as well; some
* BIOSes return really low values and cause reboots at startup.
- * Below zero (Celcius) values clearly aren't right for sure..
+ * Below zero (Celsius) values clearly aren't right for sure..
* ... so lets discard those as invalid.
*/
if (ACPI_FAILURE(status) ||
@@ -1506,7 +1506,6 @@ static int acpi_thermal_add_fs(struct acpi_device *device)
acpi_thermal_dir);
if (!acpi_device_dir(device))
return -ENODEV;
- acpi_device_dir(device)->owner = THIS_MODULE;
}
/* 'state' [R] */
@@ -1875,7 +1874,6 @@ static int __init acpi_thermal_init(void)
acpi_thermal_dir = proc_mkdir(ACPI_THERMAL_CLASS, acpi_root_dir);
if (!acpi_thermal_dir)
return -ENODEV;
- acpi_thermal_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&acpi_thermal_driver);
if (result < 0) {
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index bb5ed059114..67cc36dc9b8 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -1125,8 +1125,6 @@ static int acpi_video_device_add_fs(struct acpi_device *device)
if (!device_dir)
return -ENOMEM;
- device_dir->owner = THIS_MODULE;
-
/* 'info' [R] */
entry = proc_create_data("info", S_IRUGO, device_dir,
&acpi_video_device_info_fops, acpi_driver_data(device));
@@ -1403,8 +1401,6 @@ static int acpi_video_bus_add_fs(struct acpi_device *device)
if (!device_dir)
return -ENOMEM;
- device_dir->owner = THIS_MODULE;
-
/* 'info' [R] */
entry = proc_create_data("info", S_IRUGO, device_dir,
&acpi_video_bus_info_fops,
@@ -2131,7 +2127,6 @@ static int __init acpi_video_init(void)
acpi_video_dir = proc_mkdir(ACPI_VIDEO_CLASS, acpi_root_dir);
if (!acpi_video_dir)
return -ENODEV;
- acpi_video_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&acpi_video_bus);
if (result < 0) {
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-16 18:35:37 +0000