acpi_display_output=video
See above.
- acpi_early_pdc_eval [HW,ACPI] Evaluate processor _PDC methods
- early. Needed on some platforms to properly
- initialize the EC.
-
acpi_irq_balance [HW,ACPI]
ACPI will balance active IRQs
default in APIC mode
#include <linux/efi.h>
#include <linux/mmzone.h>
#include <linux/nodemask.h>
+#include <acpi/processor.h>
#include <asm/io.h>
#include <asm/iosapic.h>
#include <asm/machvec.h>
cpu_set(cpu, cpu_present_map);
ia64_cpu_to_sapicid[cpu] = physid;
+ acpi_processor_set_pdc(handle);
+
*pcpu = cpu;
return (0);
}
* ACPI based hotplug support for CPU
*/
#ifdef CONFIG_ACPI_HOTPLUG_CPU
+#include <acpi/processor.h>
static void acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
{
goto free_new_map;
}
+ acpi_processor_set_pdc(handle);
+
cpu = cpumask_first(new_map);
acpi_map_cpu2node(handle, cpu, physid);
#
acpi-y += bus.o glue.o
acpi-y += scan.o
-acpi-y += processor_pdc.o
+acpi-y += processor_core.o
acpi-y += ec.o
acpi-$(CONFIG_ACPI_DOCK) += dock.o
acpi-y += pci_root.o pci_link.o pci_irq.o pci_bind.o
obj-$(CONFIG_ACPI_POWER_METER) += power_meter.o
# processor has its own "processor." module_param namespace
-processor-y := processor_core.o processor_throttling.o
+processor-y := processor_driver.o processor_throttling.o
processor-y += processor_idle.o processor_thermal.o
processor-$(CONFIG_CPU_FREQ) += processor_perflib.o
return_ACPI_STATUS(AE_AML_MUTEX_NOT_ACQUIRED);
}
- /* Must have a valid thread ID */
-
+ /* Must have a valid thread. */
if (!walk_state->thread) {
ACPI_ERROR((AE_INFO,
"Cannot release Mutex [%4.4s], null thread info",
#define ACPI_BATTERY_DEVICE_NAME "Battery"
#define ACPI_BATTERY_NOTIFY_STATUS 0x80
#define ACPI_BATTERY_NOTIFY_INFO 0x81
+#define ACPI_BATTERY_NOTIFY_THRESHOLD 0x82
#define _COMPONENT ACPI_BATTERY_COMPONENT
MODULE_DEVICE_TABLE(acpi, battery_device_ids);
-/* For buggy DSDTs that report negative 16-bit values for either charging
- * or discharging current and/or report 0 as 65536 due to bad math.
- */
-#define QUIRK_SIGNED16_CURRENT 0x0001
+enum {
+ ACPI_BATTERY_ALARM_PRESENT,
+ ACPI_BATTERY_XINFO_PRESENT,
+ /* For buggy DSDTs that report negative 16-bit values for either
+ * charging or discharging current and/or report 0 as 65536
+ * due to bad math.
+ */
+ ACPI_BATTERY_QUIRK_SIGNED16_CURRENT,
+};
struct acpi_battery {
struct mutex lock;
int design_voltage;
int design_capacity_warning;
int design_capacity_low;
+ int cycle_count;
+ int measurement_accuracy;
+ int max_sampling_time;
+ int min_sampling_time;
+ int max_averaging_interval;
+ int min_averaging_interval;
int capacity_granularity_1;
int capacity_granularity_2;
int alarm;
char oem_info[32];
int state;
int power_unit;
- u8 alarm_present;
- long quirks;
+ unsigned long flags;
};
#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat);
case POWER_SUPPLY_PROP_TECHNOLOGY:
val->intval = acpi_battery_technology(battery);
break;
+ case POWER_SUPPLY_PROP_CYCLE_COUNT:
+ val->intval = battery->cycle_count;
+ break;
case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
val->intval = battery->design_voltage * 1000;
break;
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CURRENT_NOW,
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CURRENT_NOW,
{offsetof(struct acpi_battery, oem_info), 1},
};
+static struct acpi_offsets extended_info_offsets[] = {
+ {offsetof(struct acpi_battery, power_unit), 0},
+ {offsetof(struct acpi_battery, design_capacity), 0},
+ {offsetof(struct acpi_battery, full_charge_capacity), 0},
+ {offsetof(struct acpi_battery, technology), 0},
+ {offsetof(struct acpi_battery, design_voltage), 0},
+ {offsetof(struct acpi_battery, design_capacity_warning), 0},
+ {offsetof(struct acpi_battery, design_capacity_low), 0},
+ {offsetof(struct acpi_battery, cycle_count), 0},
+ {offsetof(struct acpi_battery, measurement_accuracy), 0},
+ {offsetof(struct acpi_battery, max_sampling_time), 0},
+ {offsetof(struct acpi_battery, min_sampling_time), 0},
+ {offsetof(struct acpi_battery, max_averaging_interval), 0},
+ {offsetof(struct acpi_battery, min_averaging_interval), 0},
+ {offsetof(struct acpi_battery, capacity_granularity_1), 0},
+ {offsetof(struct acpi_battery, capacity_granularity_2), 0},
+ {offsetof(struct acpi_battery, model_number), 1},
+ {offsetof(struct acpi_battery, serial_number), 1},
+ {offsetof(struct acpi_battery, type), 1},
+ {offsetof(struct acpi_battery, oem_info), 1},
+};
+
static int extract_package(struct acpi_battery *battery,
union acpi_object *package,
struct acpi_offsets *offsets, int num)
{
int result = -EFAULT;
acpi_status status = 0;
+ char *name = test_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags)?
+ "_BIX" : "_BIF";
+
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
if (!acpi_battery_present(battery))
return 0;
mutex_lock(&battery->lock);
- status = acpi_evaluate_object(battery->device->handle, "_BIF",
- NULL, &buffer);
+ status = acpi_evaluate_object(battery->device->handle, name,
+ NULL, &buffer);
mutex_unlock(&battery->lock);
if (ACPI_FAILURE(status)) {
- ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF"));
+ ACPI_EXCEPTION((AE_INFO, status, "Evaluating %s", name));
return -ENODEV;
}
-
- result = extract_package(battery, buffer.pointer,
- info_offsets, ARRAY_SIZE(info_offsets));
+ if (test_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags))
+ result = extract_package(battery, buffer.pointer,
+ extended_info_offsets,
+ ARRAY_SIZE(extended_info_offsets));
+ else
+ result = extract_package(battery, buffer.pointer,
+ info_offsets, ARRAY_SIZE(info_offsets));
kfree(buffer.pointer);
return result;
}
battery->update_time = jiffies;
kfree(buffer.pointer);
- if ((battery->quirks & QUIRK_SIGNED16_CURRENT) &&
+ if (test_bit(ACPI_BATTERY_QUIRK_SIGNED16_CURRENT, &battery->flags) &&
battery->rate_now != -1)
battery->rate_now = abs((s16)battery->rate_now);
union acpi_object arg0 = { .type = ACPI_TYPE_INTEGER };
struct acpi_object_list arg_list = { 1, &arg0 };
- if (!acpi_battery_present(battery)|| !battery->alarm_present)
+ if (!acpi_battery_present(battery) ||
+ !test_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags))
return -ENODEV;
arg0.integer.value = battery->alarm;
/* See if alarms are supported, and if so, set default */
status = acpi_get_handle(battery->device->handle, "_BTP", &handle);
if (ACPI_FAILURE(status)) {
- battery->alarm_present = 0;
+ clear_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags);
return 0;
}
- battery->alarm_present = 1;
+ set_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags);
if (!battery->alarm)
battery->alarm = battery->design_capacity_warning;
return acpi_battery_set_alarm(battery);
static void acpi_battery_quirks(struct acpi_battery *battery)
{
- battery->quirks = 0;
if (dmi_name_in_vendors("Acer") && battery->power_unit) {
- battery->quirks |= QUIRK_SIGNED16_CURRENT;
+ set_bit(ACPI_BATTERY_QUIRK_SIGNED16_CURRENT, &battery->flags);
}
}
seq_printf(seq, "design capacity low: %d %sh\n",
battery->design_capacity_low,
acpi_battery_units(battery));
+ seq_printf(seq, "cycle count: %i\n", battery->cycle_count);
seq_printf(seq, "capacity granularity 1: %d %sh\n",
battery->capacity_granularity_1,
acpi_battery_units(battery));
{
int result = 0;
struct acpi_battery *battery = NULL;
+ acpi_handle handle;
if (!device)
return -EINVAL;
battery = kzalloc(sizeof(struct acpi_battery), GFP_KERNEL);
strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
device->driver_data = battery;
mutex_init(&battery->lock);
+ if (ACPI_SUCCESS(acpi_get_handle(battery->device->handle,
+ "_BIX", &handle)))
+ set_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags);
acpi_battery_update(battery);
#ifdef CONFIG_ACPI_PROCFS_POWER
result = acpi_battery_add_fs(device);
* Get the device's power state either directly (via _PSC) or
* indirectly (via power resources).
*/
- if (device->power.flags.explicit_get) {
+ if (device->power.flags.power_resources) {
+ result = acpi_power_get_inferred_state(device);
+ if (result)
+ return result;
+ } else if (device->power.flags.explicit_get) {
status = acpi_evaluate_integer(device->handle, "_PSC",
NULL, &psc);
if (ACPI_FAILURE(status))
return -ENODEV;
device->power.state = (int)psc;
- } else if (device->power.flags.power_resources) {
- result = acpi_power_get_inferred_state(device);
- if (result)
- return result;
}
*state = device->power.state;
enum {
EC_FLAGS_QUERY_PENDING, /* Query is pending */
EC_FLAGS_GPE_STORM, /* GPE storm detected */
- EC_FLAGS_HANDLERS_INSTALLED /* Handlers for GPE and
+ EC_FLAGS_HANDLERS_INSTALLED, /* Handlers for GPE and
* OpReg are installed */
+ EC_FLAGS_FROZEN, /* Transactions are suspended */
};
/* If we find an EC via the ECDT, we need to keep a ptr to its context */
if (t->rdata)
memset(t->rdata, 0, t->rlen);
mutex_lock(&ec->lock);
+ if (test_bit(EC_FLAGS_FROZEN, &ec->flags)) {
+ status = -EINVAL;
+ goto unlock;
+ }
if (ec->global_lock) {
status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
if (ACPI_FAILURE(status)) {
EXPORT_SYMBOL(ec_transaction);
+void acpi_ec_suspend_transactions(void)
+{
+ struct acpi_ec *ec = first_ec;
+
+ if (!ec)
+ return;
+
+ mutex_lock(&ec->lock);
+ /* Prevent transactions from being carried out */
+ set_bit(EC_FLAGS_FROZEN, &ec->flags);
+ mutex_unlock(&ec->lock);
+}
+
+void acpi_ec_resume_transactions(void)
+{
+ struct acpi_ec *ec = first_ec;
+
+ if (!ec)
+ return;
+
+ mutex_lock(&ec->lock);
+ /* Allow transactions to be carried out again */
+ clear_bit(EC_FLAGS_FROZEN, &ec->flags);
+ mutex_unlock(&ec->lock);
+}
+
static int acpi_ec_query_unlocked(struct acpi_ec *ec, u8 * data)
{
int result;
int acpi_ec_init(void);
int acpi_ec_ecdt_probe(void);
int acpi_boot_ec_enable(void);
+void acpi_ec_suspend_transactions(void);
+void acpi_ec_resume_transactions(void);
/*--------------------------------------------------------------------------
Suspend/Resume
/*
- * acpi_processor.c - ACPI Processor Driver ($Revision: 71 $)
+ * Copyright (C) 2005 Intel Corporation
+ * Copyright (C) 2009 Hewlett-Packard Development Company, L.P.
*
- * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
- * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
- * Copyright (C) 2004 Dominik Brodowski <linux@brodo.de>
- * Copyright (C) 2004 Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
- * - Added processor hotplug support
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- * TBD:
- * 1. Make # power states dynamic.
- * 2. Support duty_cycle values that span bit 4.
- * 3. Optimize by having scheduler determine business instead of
- * having us try to calculate it here.
- * 4. Need C1 timing -- must modify kernel (IRQ handler) to get this.
+ * Alex Chiang <achiang@hp.com>
+ * - Unified x86/ia64 implementations
+ * Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
+ * - Added _PDC for platforms with Intel CPUs
*/
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/pm.h>
-#include <linux/cpufreq.h>
-#include <linux/cpu.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
#include <linux/dmi.h>
-#include <linux/moduleparam.h>
-#include <linux/cpuidle.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/cpu.h>
-#include <asm/delay.h>
-#include <asm/uaccess.h>
-#include <asm/processor.h>
-#include <asm/smp.h>
-#include <asm/acpi.h>
-
-#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
#include <acpi/processor.h>
-#define PREFIX "ACPI: "
-
-#define ACPI_PROCESSOR_CLASS "processor"
-#define ACPI_PROCESSOR_DEVICE_NAME "Processor"
-#define ACPI_PROCESSOR_FILE_INFO "info"
-#define ACPI_PROCESSOR_FILE_THROTTLING "throttling"
-#define ACPI_PROCESSOR_FILE_LIMIT "limit"
-#define ACPI_PROCESSOR_NOTIFY_PERFORMANCE 0x80
-#define ACPI_PROCESSOR_NOTIFY_POWER 0x81
-#define ACPI_PROCESSOR_NOTIFY_THROTTLING 0x82
-
-#define ACPI_PROCESSOR_LIMIT_USER 0
-#define ACPI_PROCESSOR_LIMIT_THERMAL 1
+#include "internal.h"
+#define PREFIX "ACPI: "
#define _COMPONENT ACPI_PROCESSOR_COMPONENT
ACPI_MODULE_NAME("processor_core");
-MODULE_AUTHOR("Paul Diefenbaugh");
-MODULE_DESCRIPTION("ACPI Processor Driver");
-MODULE_LICENSE("GPL");
-
-static int acpi_processor_add(struct acpi_device *device);
-static int acpi_processor_remove(struct acpi_device *device, int type);
-#ifdef CONFIG_ACPI_PROCFS
-static int acpi_processor_info_open_fs(struct inode *inode, struct file *file);
-#endif
-static void acpi_processor_notify(struct acpi_device *device, u32 event);
-static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu);
-static int acpi_processor_handle_eject(struct acpi_processor *pr);
-
-
-static const struct acpi_device_id processor_device_ids[] = {
- {ACPI_PROCESSOR_OBJECT_HID, 0},
- {"ACPI0007", 0},
- {"", 0},
-};
-MODULE_DEVICE_TABLE(acpi, processor_device_ids);
-
-static struct acpi_driver acpi_processor_driver = {
- .name = "processor",
- .class = ACPI_PROCESSOR_CLASS,
- .ids = processor_device_ids,
- .ops = {
- .add = acpi_processor_add,
- .remove = acpi_processor_remove,
- .suspend = acpi_processor_suspend,
- .resume = acpi_processor_resume,
- .notify = acpi_processor_notify,
- },
-};
-
-#define INSTALL_NOTIFY_HANDLER 1
-#define UNINSTALL_NOTIFY_HANDLER 2
-#ifdef CONFIG_ACPI_PROCFS
-static const struct file_operations acpi_processor_info_fops = {
- .owner = THIS_MODULE,
- .open = acpi_processor_info_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-#endif
-
-DEFINE_PER_CPU(struct acpi_processor *, processors);
-EXPORT_PER_CPU_SYMBOL(processors);
-
-struct acpi_processor_errata errata __read_mostly;
-
-/* --------------------------------------------------------------------------
- Errata Handling
- -------------------------------------------------------------------------- */
-
-static int acpi_processor_errata_piix4(struct pci_dev *dev)
+static int set_no_mwait(const struct dmi_system_id *id)
{
- u8 value1 = 0;
- u8 value2 = 0;
-
-
- if (!dev)
- return -EINVAL;
-
- /*
- * Note that 'dev' references the PIIX4 ACPI Controller.
- */
-
- switch (dev->revision) {
- case 0:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4 A-step\n"));
- break;
- case 1:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4 B-step\n"));
- break;
- case 2:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4E\n"));
- break;
- case 3:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4M\n"));
- break;
- default:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found unknown PIIX4\n"));
- break;
- }
-
- switch (dev->revision) {
-
- case 0: /* PIIX4 A-step */
- case 1: /* PIIX4 B-step */
- /*
- * See specification changes #13 ("Manual Throttle Duty Cycle")
- * and #14 ("Enabling and Disabling Manual Throttle"), plus
- * erratum #5 ("STPCLK# Deassertion Time") from the January
- * 2002 PIIX4 specification update. Applies to only older
- * PIIX4 models.
- */
- errata.piix4.throttle = 1;
-
- case 2: /* PIIX4E */
- case 3: /* PIIX4M */
- /*
- * See erratum #18 ("C3 Power State/BMIDE and Type-F DMA
- * Livelock") from the January 2002 PIIX4 specification update.
- * Applies to all PIIX4 models.
- */
-
- /*
- * BM-IDE
- * ------
- * Find the PIIX4 IDE Controller and get the Bus Master IDE
- * Status register address. We'll use this later to read
- * each IDE controller's DMA status to make sure we catch all
- * DMA activity.
- */
- dev = pci_get_subsys(PCI_VENDOR_ID_INTEL,
- PCI_DEVICE_ID_INTEL_82371AB,
- PCI_ANY_ID, PCI_ANY_ID, NULL);
- if (dev) {
- errata.piix4.bmisx = pci_resource_start(dev, 4);
- pci_dev_put(dev);
- }
-
- /*
- * Type-F DMA
- * ----------
- * Find the PIIX4 ISA Controller and read the Motherboard
- * DMA controller's status to see if Type-F (Fast) DMA mode
- * is enabled (bit 7) on either channel. Note that we'll
- * disable C3 support if this is enabled, as some legacy
- * devices won't operate well if fast DMA is disabled.
- */
- dev = pci_get_subsys(PCI_VENDOR_ID_INTEL,
- PCI_DEVICE_ID_INTEL_82371AB_0,
- PCI_ANY_ID, PCI_ANY_ID, NULL);
- if (dev) {
- pci_read_config_byte(dev, 0x76, &value1);
- pci_read_config_byte(dev, 0x77, &value2);
- if ((value1 & 0x80) || (value2 & 0x80))
- errata.piix4.fdma = 1;
- pci_dev_put(dev);
- }
-
- break;
- }
-
- if (errata.piix4.bmisx)
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Bus master activity detection (BM-IDE) erratum enabled\n"));
- if (errata.piix4.fdma)
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Type-F DMA livelock erratum (C3 disabled)\n"));
-
+ printk(KERN_NOTICE PREFIX "%s detected - "
+ "disabling mwait for CPU C-states\n", id->ident);
+ idle_nomwait = 1;
return 0;
}
-static int acpi_processor_errata(struct acpi_processor *pr)
-{
- int result = 0;
- struct pci_dev *dev = NULL;
-
-
- if (!pr)
- return -EINVAL;
-
- /*
- * PIIX4
- */
- dev = pci_get_subsys(PCI_VENDOR_ID_INTEL,
- PCI_DEVICE_ID_INTEL_82371AB_3, PCI_ANY_ID,
- PCI_ANY_ID, NULL);
- if (dev) {
- result = acpi_processor_errata_piix4(dev);
- pci_dev_put(dev);
- }
-
- return result;
-}
-
-/* --------------------------------------------------------------------------
- FS Interface (/proc)
- -------------------------------------------------------------------------- */
-
-#ifdef CONFIG_ACPI_PROCFS
-static struct proc_dir_entry *acpi_processor_dir = NULL;
-
-static int acpi_processor_info_seq_show(struct seq_file *seq, void *offset)
-{
- struct acpi_processor *pr = seq->private;
-
-
- if (!pr)
- goto end;
-
- seq_printf(seq, "processor id: %d\n"
- "acpi id: %d\n"
- "bus mastering control: %s\n"
- "power management: %s\n"
- "throttling control: %s\n"
- "limit interface: %s\n",
- pr->id,
- pr->acpi_id,
- pr->flags.bm_control ? "yes" : "no",
- pr->flags.power ? "yes" : "no",
- pr->flags.throttling ? "yes" : "no",
- pr->flags.limit ? "yes" : "no");
-
- end:
- return 0;
-}
-
-static int acpi_processor_info_open_fs(struct inode *inode, struct file *file)
-{
- return single_open(file, acpi_processor_info_seq_show,
- PDE(inode)->data);
-}
-
-static int __cpuinit acpi_processor_add_fs(struct acpi_device *device)
-{
- struct proc_dir_entry *entry = NULL;
-
-
- if (!acpi_device_dir(device)) {
- acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
- acpi_processor_dir);
- if (!acpi_device_dir(device))
- return -ENODEV;
- }
-
- /* 'info' [R] */
- entry = proc_create_data(ACPI_PROCESSOR_FILE_INFO,
- S_IRUGO, acpi_device_dir(device),
- &acpi_processor_info_fops,
- acpi_driver_data(device));
- if (!entry)
- return -EIO;
-
- /* 'throttling' [R/W] */
- entry = proc_create_data(ACPI_PROCESSOR_FILE_THROTTLING,
- S_IFREG | S_IRUGO | S_IWUSR,
- acpi_device_dir(device),
- &acpi_processor_throttling_fops,
- acpi_driver_data(device));
- if (!entry)
- return -EIO;
-
- /* 'limit' [R/W] */
- entry = proc_create_data(ACPI_PROCESSOR_FILE_LIMIT,
- S_IFREG | S_IRUGO | S_IWUSR,
- acpi_device_dir(device),
- &acpi_processor_limit_fops,
- acpi_driver_data(device));
- if (!entry)
- return -EIO;
- return 0;
-}
-static int acpi_processor_remove_fs(struct acpi_device *device)
-{
-
- if (acpi_device_dir(device)) {
- remove_proc_entry(ACPI_PROCESSOR_FILE_INFO,
- acpi_device_dir(device));
- remove_proc_entry(ACPI_PROCESSOR_FILE_THROTTLING,
- acpi_device_dir(device));
- remove_proc_entry(ACPI_PROCESSOR_FILE_LIMIT,
- acpi_device_dir(device));
- remove_proc_entry(acpi_device_bid(device), acpi_processor_dir);
- acpi_device_dir(device) = NULL;
- }
-
- return 0;
-}
-#else
-static inline int acpi_processor_add_fs(struct acpi_device *device)
-{
- return 0;
-}
-static inline int acpi_processor_remove_fs(struct acpi_device *device)
-{
- return 0;
-}
-#endif
-
-/* Use the acpiid in MADT to map cpus in case of SMP */
-
-#ifndef CONFIG_SMP
-static int get_cpu_id(acpi_handle handle, int type, u32 acpi_id) { return -1; }
-#else
-
-static struct acpi_table_madt *madt;
+static struct dmi_system_id __cpuinitdata processor_idle_dmi_table[] = {
+ {
+ set_no_mwait, "IFL91 board", {
+ DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
+ DMI_MATCH(DMI_SYS_VENDOR, "ZEPTO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "3215W"),
+ DMI_MATCH(DMI_BOARD_NAME, "IFL91") }, NULL},
+ {
+ set_no_mwait, "Extensa 5220", {
+ DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
+ DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL},
+ {},
+};
+#ifdef CONFIG_SMP
static int map_lapic_id(struct acpi_subtable_header *entry,
u32 acpi_id, int *apic_id)
{
struct acpi_madt_local_apic *lapic =
(struct acpi_madt_local_apic *)entry;
- if ((lapic->lapic_flags & ACPI_MADT_ENABLED) &&
- lapic->processor_id == acpi_id) {
- *apic_id = lapic->id;
- return 1;
- }
- return 0;
+
+ if (!(lapic->lapic_flags & ACPI_MADT_ENABLED))
+ return 0;
+
+ if (lapic->processor_id != acpi_id)
+ return 0;
+
+ *apic_id = lapic->id;
+ return 1;
}
static int map_x2apic_id(struct acpi_subtable_header *entry,
{
struct acpi_madt_local_x2apic *apic =
(struct acpi_madt_local_x2apic *)entry;
- u32 tmp = apic->local_apic_id;
- /* Only check enabled APICs*/
if (!(apic->lapic_flags & ACPI_MADT_ENABLED))
return 0;
- /* Device statement declaration type */
- if (device_declaration) {
- if (apic->uid == acpi_id)
- goto found;
+ if (device_declaration && (apic->uid == acpi_id)) {
+ *apic_id = apic->local_apic_id;
+ return 1;
}
return 0;
-found:
- *apic_id = tmp;
- return 1;
}
static int map_lsapic_id(struct acpi_subtable_header *entry,
{
struct acpi_madt_local_sapic *lsapic =
(struct acpi_madt_local_sapic *)entry;
- u32 tmp = (lsapic->id << 8) | lsapic->eid;
- /* Only check enabled APICs*/
if (!(lsapic->lapic_flags & ACPI_MADT_ENABLED))
return 0;
- /* Device statement declaration type */
if (device_declaration) {
- if (entry->length < 16)
- printk(KERN_ERR PREFIX
- "Invalid LSAPIC with Device type processor (SAPIC ID %#x)\n",
- tmp);
- else if (lsapic->uid == acpi_id)
- goto found;
- /* Processor statement declaration type */
- } else if (lsapic->processor_id == acpi_id)
- goto found;
+ if ((entry->length < 16) || (lsapic->uid != acpi_id))
+ return 0;
+ } else if (lsapic->processor_id != acpi_id)
+ return 0;
- return 0;
-found:
- *apic_id = tmp;
+ *apic_id = (lsapic->id << 8) | lsapic->eid;
return 1;
}
static int map_madt_entry(int type, u32 acpi_id)
{
unsigned long madt_end, entry;
+ static struct acpi_table_madt *madt;
+ static int read_madt;
int apic_id = -1;
+ if (!read_madt) {
+ if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0,
+ (struct acpi_table_header **)&madt)))
+ madt = NULL;
+ read_madt++;
+ }
+
if (!madt)
return apic_id;
return apic_id;
}
-static int get_cpu_id(acpi_handle handle, int type, u32 acpi_id)
+int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id)
{
int i;
int apic_id = -1;
}
return -1;
}
+EXPORT_SYMBOL_GPL(acpi_get_cpuid);
#endif
-/* --------------------------------------------------------------------------
- Driver Interface
- -------------------------------------------------------------------------- */
-
-static int acpi_processor_get_info(struct acpi_device *device)
+static bool processor_physically_present(acpi_handle handle)
{
- acpi_status status = 0;
+ int cpuid, type;
+ u32 acpi_id;
+ acpi_status status;
+ acpi_object_type acpi_type;
+ unsigned long long tmp;
union acpi_object object = { 0 };
struct acpi_buffer buffer = { sizeof(union acpi_object), &object };
- struct acpi_processor *pr;
- int cpu_index, device_declaration = 0;
- static int cpu0_initialized;
-
- pr = acpi_driver_data(device);
- if (!pr)
- return -EINVAL;
-
- if (num_online_cpus() > 1)
- errata.smp = TRUE;
-
- acpi_processor_errata(pr);
-
- /*
- * Check to see if we have bus mastering arbitration control. This
- * is required for proper C3 usage (to maintain cache coherency).
- */
- if (acpi_gbl_FADT.pm2_control_block && acpi_gbl_FADT.pm2_control_length) {
- pr->flags.bm_control = 1;
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Bus mastering arbitration control present\n"));
- } else
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "No bus mastering arbitration control\n"));
-
- if (!strcmp(acpi_device_hid(device), ACPI_PROCESSOR_OBJECT_HID)) {
- /* Declared with "Processor" statement; match ProcessorID */
- status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer);
- if (ACPI_FAILURE(status)) {
- printk(KERN_ERR PREFIX "Evaluating processor object\n");
- return -ENODEV;
- }
-
- /*
- * TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP.
- * >>> 'acpi_get_processor_id(acpi_id, &id)' in
- * arch/xxx/acpi.c
- */
- pr->acpi_id = object.processor.proc_id;
- } else {
- /*
- * Declared with "Device" statement; match _UID.
- * Note that we don't handle string _UIDs yet.
- */
- unsigned long long value;
- status = acpi_evaluate_integer(pr->handle, METHOD_NAME__UID,
- NULL, &value);
- if (ACPI_FAILURE(status)) {
- printk(KERN_ERR PREFIX
- "Evaluating processor _UID [%#x]\n", status);
- return -ENODEV;
- }
- device_declaration = 1;
- pr->acpi_id = value;
- }
- cpu_index = get_cpu_id(pr->handle, device_declaration, pr->acpi_id);
-
- /* Handle UP system running SMP kernel, with no LAPIC in MADT */
- if (!cpu0_initialized && (cpu_index == -1) &&
- (num_online_cpus() == 1)) {
- cpu_index = 0;
- }
-
- cpu0_initialized = 1;
-
- pr->id = cpu_index;
-
- /*
- * Extra Processor objects may be enumerated on MP systems with
- * less than the max # of CPUs. They should be ignored _iff
- * they are physically not present.
- */
- if (pr->id == -1) {
- if (ACPI_FAILURE
- (acpi_processor_hotadd_init(pr->handle, &pr->id))) {
- return -ENODEV;
- }
- }
- /*
- * On some boxes several processors use the same processor bus id.
- * But they are located in different scope. For example:
- * \_SB.SCK0.CPU0
- * \_SB.SCK1.CPU0
- * Rename the processor device bus id. And the new bus id will be
- * generated as the following format:
- * CPU+CPU ID.
- */
- sprintf(acpi_device_bid(device), "CPU%X", pr->id);
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Processor [%d:%d]\n", pr->id,
- pr->acpi_id));
-
- if (!object.processor.pblk_address)
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No PBLK (NULL address)\n"));
- else if (object.processor.pblk_length != 6)
- printk(KERN_ERR PREFIX "Invalid PBLK length [%d]\n",
- object.processor.pblk_length);
- else {
- pr->throttling.address = object.processor.pblk_address;
- pr->throttling.duty_offset = acpi_gbl_FADT.duty_offset;
- pr->throttling.duty_width = acpi_gbl_FADT.duty_width;
-
- pr->pblk = object.processor.pblk_address;
-
- /*
- * We don't care about error returns - we just try to mark
- * these reserved so that nobody else is confused into thinking
- * that this region might be unused..
- *
- * (In particular, allocating the IO range for Cardbus)
- */
- request_region(pr->throttling.address, 6, "ACPI CPU throttle");
- }
-
- /*
- * If ACPI describes a slot number for this CPU, we can use it
- * ensure we get the right value in the "physical id" field
- * of /proc/cpuinfo
- */
- status = acpi_evaluate_object(pr->handle, "_SUN", NULL, &buffer);
- if (ACPI_SUCCESS(status))
- arch_fix_phys_package_id(pr->id, object.integer.value);
-
- return 0;
-}
-
-static DEFINE_PER_CPU(void *, processor_device_array);
-
-static void acpi_processor_notify(struct acpi_device *device, u32 event)
-{
- struct acpi_processor *pr = acpi_driver_data(device);
- int saved;
-
- if (!pr)
- return;
- switch (event) {
- case ACPI_PROCESSOR_NOTIFY_PERFORMANCE:
- saved = pr->performance_platform_limit;
- acpi_processor_ppc_has_changed(pr, 1);
- if (saved == pr->performance_platform_limit)
- break;
- acpi_bus_generate_proc_event(device, event,
- pr->performance_platform_limit);
- acpi_bus_generate_netlink_event(device->pnp.device_class,
- dev_name(&device->dev), event,
- pr->performance_platform_limit);
+ status = acpi_get_type(handle, &acpi_type);
+ if (ACPI_FAILURE(status))
+ return false;
+
+ switch (acpi_type) {
+ case ACPI_TYPE_PROCESSOR:
+ status = acpi_evaluate_object(handle, NULL, NULL, &buffer);
+ if (ACPI_FAILURE(status))
+ return false;
+ acpi_id = object.processor.proc_id;
break;
- case ACPI_PROCESSOR_NOTIFY_POWER:
- acpi_processor_cst_has_changed(pr);
- acpi_bus_generate_proc_event(device, event, 0);
- acpi_bus_generate_netlink_event(device->pnp.device_class,
- dev_name(&device->dev), event, 0);
+ case ACPI_TYPE_DEVICE:
+ status = acpi_evaluate_integer(handle, "_UID", NULL, &tmp);
+ if (ACPI_FAILURE(status))
+ return false;
+ acpi_id = tmp;
break;
- case ACPI_PROCESSOR_NOTIFY_THROTTLING:
- acpi_processor_tstate_has_changed(pr);
- acpi_bus_generate_proc_event(device, event, 0);
- acpi_bus_generate_netlink_event(device->pnp.device_class,
- dev_name(&device->dev), event, 0);
default:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Unsupported event [0x%x]\n", event));
- break;
+ return false;
}
- return;
-}
+ type = (acpi_type == ACPI_TYPE_DEVICE) ? 1 : 0;
+ cpuid = acpi_get_cpuid(handle, type, acpi_id);
-static int acpi_cpu_soft_notify(struct notifier_block *nfb,
- unsigned long action, void *hcpu)
-{
- unsigned int cpu = (unsigned long)hcpu;
- struct acpi_processor *pr = per_cpu(processors, cpu);
+ if (cpuid == -1)
+ return false;
- if (action == CPU_ONLINE && pr) {
- acpi_processor_ppc_has_changed(pr, 0);
- acpi_processor_cst_has_changed(pr);
- acpi_processor_tstate_has_changed(pr);
- }
- return NOTIFY_OK;
+ return true;
}
-static struct notifier_block acpi_cpu_notifier =
+static void acpi_set_pdc_bits(u32 *buf)
{
- .notifier_call = acpi_cpu_soft_notify,
-};
-
-static int __cpuinit acpi_processor_add(struct acpi_device *device)
-{
- struct acpi_processor *pr = NULL;
- int result = 0;
- struct sys_device *sysdev;
-
- pr = kzalloc(sizeof(struct acpi_processor), GFP_KERNEL);
- if (!pr)
- return -ENOMEM;
-
- if (!zalloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) {
- kfree(pr);
- return -ENOMEM;
- }
-
- pr->handle = device->handle;
- strcpy(acpi_device_name(device), ACPI_PROCESSOR_DEVICE_NAME);
- strcpy(acpi_device_class(device), ACPI_PROCESSOR_CLASS);
- device->driver_data = pr;
-
- result = acpi_processor_get_info(device);
- if (result) {
- /* Processor is physically not present */
- return 0;
- }
-
- BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0));
-
- /*
- * Buggy BIOS check
- * ACPI id of processors can be reported wrongly by the BIOS.
- * Don't trust it blindly
- */
- if (per_cpu(processor_device_array, pr->id) != NULL &&
- per_cpu(processor_device_array, pr->id) != device) {
- printk(KERN_WARNING "BIOS reported wrong ACPI id "
- "for the processor\n");
- result = -ENODEV;
- goto err_free_cpumask;
- }
- per_cpu(processor_device_array, pr->id) = device;
+ buf[0] = ACPI_PDC_REVISION_ID;
+ buf[1] = 1;
- per_cpu(processors, pr->id) = pr;
+ /* Enable coordination with firmware's _TSD info */
+ buf[2] = ACPI_PDC_SMP_T_SWCOORD;
- result = acpi_processor_add_fs(device);
- if (result)
- goto err_free_cpumask;
-
- sysdev = get_cpu_sysdev(pr->id);
- if (sysfs_create_link(&device->dev.kobj, &sysdev->kobj, "sysdev")) {
- result = -EFAULT;
- goto err_remove_fs;
- }
-
- /* _PDC call should be done before doing anything else (if reqd.). */
- acpi_processor_set_pdc(pr->handle);
-
-#ifdef CONFIG_CPU_FREQ
- acpi_processor_ppc_has_changed(pr, 0);
-#endif
- acpi_processor_get_throttling_info(pr);
- acpi_processor_get_limit_info(pr);
-
-
- acpi_processor_power_init(pr, device);
-
- pr->cdev = thermal_cooling_device_register("Processor", device,
- &processor_cooling_ops);
- if (IS_ERR(pr->cdev)) {
- result = PTR_ERR(pr->cdev);
- goto err_power_exit;
- }
-
- dev_dbg(&device->dev, "registered as cooling_device%d\n",
- pr->cdev->id);
-
- result = sysfs_create_link(&device->dev.kobj,
- &pr->cdev->device.kobj,
- "thermal_cooling");
- if (result) {
- printk(KERN_ERR PREFIX "Create sysfs link\n");
- goto err_thermal_unregister;
- }
- result = sysfs_create_link(&pr->cdev->device.kobj,
- &device->dev.kobj,
- "device");
- if (result) {
- printk(KERN_ERR PREFIX "Create sysfs link\n");
- goto err_remove_sysfs;
- }
-
- return 0;
-
-err_remove_sysfs:
- sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
-err_thermal_unregister:
- thermal_cooling_device_unregister(pr->cdev);
-err_power_exit:
- acpi_processor_power_exit(pr, device);
-err_remove_fs:
- acpi_processor_remove_fs(device);
-err_free_cpumask:
- free_cpumask_var(pr->throttling.shared_cpu_map);
-
- return result;
+ /* Twiddle arch-specific bits needed for _PDC */
+ arch_acpi_set_pdc_bits(buf);
}
-static int acpi_processor_remove(struct acpi_device *device, int type)
+static struct acpi_object_list *acpi_processor_alloc_pdc(void)
{
- struct acpi_processor *pr = NULL;
-
-
- if (!device || !acpi_driver_data(device))
- return -EINVAL;
-
- pr = acpi_driver_data(device);
-
- if (pr->id >= nr_cpu_ids)
- goto free;
+ struct acpi_object_list *obj_list;
+ union acpi_object *obj;
+ u32 *buf;
- if (type == ACPI_BUS_REMOVAL_EJECT) {
- if (acpi_processor_handle_eject(pr))
- return -EINVAL;
+ /* allocate and initialize pdc. It will be used later. */
+ obj_list = kmalloc(sizeof(struct acpi_object_list), GFP_KERNEL);
+ if (!obj_list) {
+ printk(KERN_ERR "Memory allocation error\n");
+ return NULL;
}
- acpi_processor_power_exit(pr, device);
-
- sysfs_remove_link(&device->dev.kobj, "sysdev");
-
- acpi_processor_remove_fs(device);
-
- if (pr->cdev) {
- sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
- sysfs_remove_link(&pr->cdev->device.kobj, "device");
- thermal_cooling_device_unregister(pr->cdev);
- pr->cdev = NULL;
+ obj = kmalloc(sizeof(union acpi_object), GFP_KERNEL);
+ if (!obj) {
+ printk(KERN_ERR "Memory allocation error\n");
+ kfree(obj_list);
+ return NULL;
}
- per_cpu(processors, pr->id) = NULL;
- per_cpu(processor_device_array, pr->id) = NULL;
-
-free:
- free_cpumask_var(pr->throttling.shared_cpu_map);
- kfree(pr);
-
- return 0;
-}
-
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
-/****************************************************************************
- * Acpi processor hotplug support *
- ****************************************************************************/
-
-static int is_processor_present(acpi_handle handle)
-{
- acpi_status status;
- unsigned long long sta = 0;
-
-
- status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
-
- if (ACPI_SUCCESS(status) && (sta & ACPI_STA_DEVICE_PRESENT))
- return 1;
-
- /*
- * _STA is mandatory for a processor that supports hot plug
- */
- if (status == AE_NOT_FOUND)
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Processor does not support hot plug\n"));
- else
- ACPI_EXCEPTION((AE_INFO, status,
- "Processor Device is not present"));
- return 0;
-}
-
-static
-int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device)
-{
- acpi_handle phandle;
- struct acpi_device *pdev;
-
-
- if (acpi_get_parent(handle, &phandle)) {
- return -ENODEV;
+ buf = kmalloc(12, GFP_KERNEL);
+ if (!buf) {
+ printk(KERN_ERR "Memory allocation error\n");
+ kfree(obj);
+ kfree(obj_list);
+ return NULL;
}
- if (acpi_bus_get_device(phandle, &pdev)) {
- return -ENODEV;
- }
+ acpi_set_pdc_bits(buf);
- if (acpi_bus_add(device, pdev, handle, ACPI_BUS_TYPE_PROCESSOR)) {
- return -ENODEV;
- }
+ obj->type = ACPI_TYPE_BUFFER;
+ obj->buffer.length = 12;
+ obj->buffer.pointer = (u8 *) buf;
+ obj_list->count = 1;
+ obj_list->pointer = obj;
- return 0;
+ return obj_list;
}
-static void __ref acpi_processor_hotplug_notify(acpi_handle handle,
- u32 event, void *data)
+/*
+ * _PDC is required for a BIOS-OS handshake for most of the newer
+ * ACPI processor features.
+ */
+static int
+acpi_processor_eval_pdc(acpi_handle handle, struct acpi_object_list *pdc_in)
{
- struct acpi_processor *pr;
- struct acpi_device *device = NULL;
- int result;
-
+ acpi_status status = AE_OK;
- switch (event) {
- case ACPI_NOTIFY_BUS_CHECK:
- case ACPI_NOTIFY_DEVICE_CHECK:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Processor driver received %s event\n",
- (event == ACPI_NOTIFY_BUS_CHECK) ?
- "ACPI_NOTIFY_BUS_CHECK" : "ACPI_NOTIFY_DEVICE_CHECK"));
-
- if (!is_processor_present(handle))
- break;
+ if (idle_nomwait) {
+ /*
+ * If mwait is disabled for CPU C-states, the C2C3_FFH access
+ * mode will be disabled in the parameter of _PDC object.
+ * Of course C1_FFH access mode will also be disabled.
+ */
+ union acpi_object *obj;
+ u32 *buffer = NULL;
- if (acpi_bus_get_device(handle, &device)) {
- result = acpi_processor_device_add(handle, &device);
- if (result)
- printk(KERN_ERR PREFIX
- "Unable to add the device\n");
- break;
- }
- break;
- case ACPI_NOTIFY_EJECT_REQUEST:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "received ACPI_NOTIFY_EJECT_REQUEST\n"));
+ obj = pdc_in->pointer;
+ buffer = (u32 *)(obj->buffer.pointer);
+ buffer[2] &= ~(ACPI_PDC_C_C2C3_FFH | ACPI_PDC_C_C1_FFH);
- if (acpi_bus_get_device(handle, &device)) {
- printk(KERN_ERR PREFIX
- "Device don't exist, dropping EJECT\n");
- break;
- }
- pr = acpi_driver_data(device);
- if (!pr) {
- printk(KERN_ERR PREFIX
- "Driver data is NULL, dropping EJECT\n");
- return;
- }
- break;
- default:
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Unsupported event [0x%x]\n", event));
- break;
}
+ status = acpi_evaluate_object(handle, "_PDC", pdc_in, NULL);
- return;
-}
-
-static acpi_status
-processor_walk_namespace_cb(acpi_handle handle,
- u32 lvl, void *context, void **rv)
-{
- acpi_status status;
- int *action = context;
- acpi_object_type type = 0;
-
- status = acpi_get_type(handle, &type);
if (ACPI_FAILURE(status))
- return (AE_OK);
-
- if (type != ACPI_TYPE_PROCESSOR)
- return (AE_OK);
-
- switch (*action) {
- case INSTALL_NOTIFY_HANDLER:
- acpi_install_notify_handler(handle,
- ACPI_SYSTEM_NOTIFY,
- acpi_processor_hotplug_notify,
- NULL);
- break;
- case UNINSTALL_NOTIFY_HANDLER:
- acpi_remove_notify_handler(handle,
- ACPI_SYSTEM_NOTIFY,
- acpi_processor_hotplug_notify);
- break;
- default:
- break;
- }
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Could not evaluate _PDC, using legacy perf. control.\n"));
- return (AE_OK);
+ return status;
}
-static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu)
+void acpi_processor_set_pdc(acpi_handle handle)
{
+ struct acpi_object_list *obj_list;
- if (!is_processor_present(handle)) {
- return AE_ERROR;
- }
+ if (arch_has_acpi_pdc() == false)
+ return;
- if (acpi_map_lsapic(handle, p_cpu))
- return AE_ERROR;
+ obj_list = acpi_processor_alloc_pdc();
+ if (!obj_list)
+ return;
- if (arch_register_cpu(*p_cpu)) {
- acpi_unmap_lsapic(*p_cpu);
- return AE_ERROR;
- }
+ acpi_processor_eval_pdc(handle, obj_list);
- return AE_OK;
+ kfree(obj_list->pointer->buffer.pointer);
+ kfree(obj_list->pointer);
+ kfree(obj_list);
}
+EXPORT_SYMBOL_GPL(acpi_processor_set_pdc);
-static int acpi_processor_handle_eject(struct acpi_processor *pr)
+static acpi_status
+early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv)
{
- if (cpu_online(pr->id))
- cpu_down(pr->id);
+ if (processor_physically_present(handle) == false)
+ return AE_OK;
- arch_unregister_cpu(pr->id);
- acpi_unmap_lsapic(pr->id);
- return (0);
-}
-#else
-static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu)
-{
- return AE_ERROR;
-}
-static int acpi_processor_handle_eject(struct acpi_processor *pr)
-{
- return (-EINVAL);
+ acpi_processor_set_pdc(handle);
+ return AE_OK;
}
-#endif
-static
-void acpi_processor_install_hotplug_notify(void)
+void __init acpi_early_processor_set_pdc(void)
{
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
- int action = INSTALL_NOTIFY_HANDLER;
- acpi_walk_namespace(ACPI_TYPE_PROCESSOR,
- ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX,
- processor_walk_namespace_cb, NULL, &action, NULL);
-#endif
- register_hotcpu_notifier(&acpi_cpu_notifier);
-}
+ /*
+ * Check whether the system is DMI table. If yes, OSPM
+ * should not use mwait for CPU-states.
+ */
+ dmi_check_system(processor_idle_dmi_table);
-static
-void acpi_processor_uninstall_hotplug_notify(void)
-{
-#ifdef CONFIG_ACPI_HOTPLUG_CPU
- int action = UNINSTALL_NOTIFY_HANDLER;
- acpi_walk_namespace(ACPI_TYPE_PROCESSOR,
- ACPI_ROOT_OBJECT,
+ acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX,
- processor_walk_namespace_cb, NULL, &action, NULL);
-#endif
- unregister_hotcpu_notifier(&acpi_cpu_notifier);
+ early_init_pdc, NULL, NULL, NULL);
}
-
-/*
- * We keep the driver loaded even when ACPI is not running.
- * This is needed for the powernow-k8 driver, that works even without
- * ACPI, but needs symbols from this driver
- */
-
-static int __init acpi_processor_init(void)
-{
- int result = 0;
-
- if (acpi_disabled)
- return 0;
-
- memset(&errata, 0, sizeof(errata));
-
-#ifdef CONFIG_SMP
- if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0,
- (struct acpi_table_header **)&madt)))
- madt = NULL;
-#endif
-#ifdef CONFIG_ACPI_PROCFS
- acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir);
- if (!acpi_processor_dir)
- return -ENOMEM;
-#endif
- result = cpuidle_register_driver(&acpi_idle_driver);
- if (result < 0)
- goto out_proc;
-
- result = acpi_bus_register_driver(&acpi_processor_driver);
- if (result < 0)
- goto out_cpuidle;
-
- acpi_processor_install_hotplug_notify();
-
- acpi_thermal_cpufreq_init();
-
- acpi_processor_ppc_init();
-
- acpi_processor_throttling_init();
-
- return 0;
-
-out_cpuidle:
- cpuidle_unregister_driver(&acpi_idle_driver);
-
-out_proc:
-#ifdef CONFIG_ACPI_PROCFS
- remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
-#endif
-
- return result;
-}
-
-static void __exit acpi_processor_exit(void)
-{
- if (acpi_disabled)
- return;
-
- acpi_processor_ppc_exit();
-
- acpi_thermal_cpufreq_exit();
-
- acpi_processor_uninstall_hotplug_notify();
-
- acpi_bus_unregister_driver(&acpi_processor_driver);
-
- cpuidle_unregister_driver(&acpi_idle_driver);
-
-#ifdef CONFIG_ACPI_PROCFS
- remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
-#endif
-
- return;
-}
-
-module_init(acpi_processor_init);
-module_exit(acpi_processor_exit);
-
-EXPORT_SYMBOL(acpi_processor_set_thermal_limit);
-
-MODULE_ALIAS("processor");
--- /dev/null
+/*
+ * acpi_processor.c - ACPI Processor Driver ($Revision: 71 $)
+ *
+ * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
+ * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
+ * Copyright (C) 2004 Dominik Brodowski <linux@brodo.de>
+ * Copyright (C) 2004 Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
+ * - Added processor hotplug support
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ * TBD:
+ * 1. Make # power states dynamic.
+ * 2. Support duty_cycle values that span bit 4.
+ * 3. Optimize by having scheduler determine business instead of
+ * having us try to calculate it here.
+ * 4. Need C1 timing -- must modify kernel (IRQ handler) to get this.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/pm.h>
+#include <linux/cpufreq.h>
+#include <linux/cpu.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/dmi.h>
+#include <linux/moduleparam.h>
+#include <linux/cpuidle.h>
+
+#include <asm/io.h>
+#include <asm/system.h>
+#include <asm/cpu.h>
+#include <asm/delay.h>
+#include <asm/uaccess.h>
+#include <asm/processor.h>
+#include <asm/smp.h>
+#include <asm/acpi.h>
+
+#include <acpi/acpi_bus.h>
+#include <acpi/acpi_drivers.h>
+#include <acpi/processor.h>
+
+#define PREFIX "ACPI: "
+
+#define ACPI_PROCESSOR_CLASS "processor"
+#define ACPI_PROCESSOR_DEVICE_NAME "Processor"
+#define ACPI_PROCESSOR_FILE_INFO "info"
+#define ACPI_PROCESSOR_FILE_THROTTLING "throttling"
+#define ACPI_PROCESSOR_FILE_LIMIT "limit"
+#define ACPI_PROCESSOR_NOTIFY_PERFORMANCE 0x80
+#define ACPI_PROCESSOR_NOTIFY_POWER 0x81
+#define ACPI_PROCESSOR_NOTIFY_THROTTLING 0x82
+
+#define ACPI_PROCESSOR_LIMIT_USER 0
+#define ACPI_PROCESSOR_LIMIT_THERMAL 1
+
+#define _COMPONENT ACPI_PROCESSOR_COMPONENT
+ACPI_MODULE_NAME("processor_driver");
+
+MODULE_AUTHOR("Paul Diefenbaugh");
+MODULE_DESCRIPTION("ACPI Processor Driver");
+MODULE_LICENSE("GPL");
+
+static int acpi_processor_add(struct acpi_device *device);
+static int acpi_processor_remove(struct acpi_device *device, int type);
+#ifdef CONFIG_ACPI_PROCFS
+static int acpi_processor_info_open_fs(struct inode *inode, struct file *file);
+#endif
+static void acpi_processor_notify(struct acpi_device *device, u32 event);
+static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu);
+static int acpi_processor_handle_eject(struct acpi_processor *pr);
+
+
+static const struct acpi_device_id processor_device_ids[] = {
+ {ACPI_PROCESSOR_OBJECT_HID, 0},
+ {"ACPI0007", 0},
+ {"", 0},
+};
+MODULE_DEVICE_TABLE(acpi, processor_device_ids);
+
+static struct acpi_driver acpi_processor_driver = {
+ .name = "processor",
+ .class = ACPI_PROCESSOR_CLASS,
+ .ids = processor_device_ids,
+ .ops = {
+ .add = acpi_processor_add,
+ .remove = acpi_processor_remove,
+ .suspend = acpi_processor_suspend,
+ .resume = acpi_processor_resume,
+ .notify = acpi_processor_notify,
+ },
+};
+
+#define INSTALL_NOTIFY_HANDLER 1
+#define UNINSTALL_NOTIFY_HANDLER 2
+#ifdef CONFIG_ACPI_PROCFS
+static const struct file_operations acpi_processor_info_fops = {
+ .owner = THIS_MODULE,
+ .open = acpi_processor_info_open_fs,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+#endif
+
+DEFINE_PER_CPU(struct acpi_processor *, processors);
+EXPORT_PER_CPU_SYMBOL(processors);
+
+struct acpi_processor_errata errata __read_mostly;
+
+/* --------------------------------------------------------------------------
+ Errata Handling
+ -------------------------------------------------------------------------- */
+
+static int acpi_processor_errata_piix4(struct pci_dev *dev)
+{
+ u8 value1 = 0;
+ u8 value2 = 0;
+
+
+ if (!dev)
+ return -EINVAL;
+
+ /*
+ * Note that 'dev' references the PIIX4 ACPI Controller.
+ */
+
+ switch (dev->revision) {
+ case 0:
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4 A-step\n"));
+ break;
+ case 1:
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4 B-step\n"));
+ break;
+ case 2:
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4E\n"));
+ break;
+ case 3:
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4M\n"));
+ break;
+ default:
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found unknown PIIX4\n"));
+ break;
+ }
+
+ switch (dev->revision) {
+
+ case 0: /* PIIX4 A-step */
+ case 1: /* PIIX4 B-step */
+ /*
+ * See specification changes #13 ("Manual Throttle Duty Cycle")
+ * and #14 ("Enabling and Disabling Manual Throttle"), plus
+ * erratum #5 ("STPCLK# Deassertion Time") from the January
+ * 2002 PIIX4 specification update. Applies to only older
+ * PIIX4 models.
+ */
+ errata.piix4.throttle = 1;
+
+ case 2: /* PIIX4E */
+ case 3: /* PIIX4M */
+ /*
+ * See erratum #18 ("C3 Power State/BMIDE and Type-F DMA
+ * Livelock") from the January 2002 PIIX4 specification update.
+ * Applies to all PIIX4 models.
+ */
+
+ /*
+ * BM-IDE
+ * ------
+ * Find the PIIX4 IDE Controller and get the Bus Master IDE
+ * Status register address. We'll use this later to read
+ * each IDE controller's DMA status to make sure we catch all
+ * DMA activity.
+ */
+ dev = pci_get_subsys(PCI_VENDOR_ID_INTEL,
+ PCI_DEVICE_ID_INTEL_82371AB,
+ PCI_ANY_ID, PCI_ANY_ID, NULL);
+ if (dev) {
+ errata.piix4.bmisx = pci_resource_start(dev, 4);
+ pci_dev_put(dev);
+ }
+
+ /*
+ * Type-F DMA
+ * ----------
+ * Find the PIIX4 ISA Controller and read the Motherboard
+ * DMA controller's status to see if Type-F (Fast) DMA mode
+ * is enabled (bit 7) on either channel. Note that we'll
+ * disable C3 support if this is enabled, as some legacy
+ * devices won't operate well if fast DMA is disabled.
+ */
+ dev = pci_get_subsys(PCI_VENDOR_ID_INTEL,
+ PCI_DEVICE_ID_INTEL_82371AB_0,
+ PCI_ANY_ID, PCI_ANY_ID, NULL);
+ if (dev) {
+ pci_read_config_byte(dev, 0x76, &value1);
+ pci_read_config_byte(dev, 0x77, &value2);
+ if ((value1 & 0x80) || (value2 & 0x80))
+ errata.piix4.fdma = 1;
+ pci_dev_put(dev);
+ }
+
+ break;
+ }
+
+ if (errata.piix4.bmisx)
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Bus master activity detection (BM-IDE) erratum enabled\n"));
+ if (errata.piix4.fdma)
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Type-F DMA livelock erratum (C3 disabled)\n"));
+
+ return 0;
+}
+
+static int acpi_processor_errata(struct acpi_processor *pr)
+{
+ int result = 0;
+ struct pci_dev *dev = NULL;
+
+
+ if (!pr)
+ return -EINVAL;
+
+ /*
+ * PIIX4
+ */
+ dev = pci_get_subsys(PCI_VENDOR_ID_INTEL,
+ PCI_DEVICE_ID_INTEL_82371AB_3, PCI_ANY_ID,
+ PCI_ANY_ID, NULL);
+ if (dev) {
+ result = acpi_processor_errata_piix4(dev);
+ pci_dev_put(dev);
+ }
+
+ return result;
+}
+
+/* --------------------------------------------------------------------------
+ FS Interface (/proc)
+ -------------------------------------------------------------------------- */
+
+#ifdef CONFIG_ACPI_PROCFS
+static struct proc_dir_entry *acpi_processor_dir = NULL;
+
+static int acpi_processor_info_seq_show(struct seq_file *seq, void *offset)
+{
+ struct acpi_processor *pr = seq->private;
+
+
+ if (!pr)
+ goto end;
+
+ seq_printf(seq, "processor id: %d\n"
+ "acpi id: %d\n"
+ "bus mastering control: %s\n"
+ "power management: %s\n"
+ "throttling control: %s\n"
+ "limit interface: %s\n",
+ pr->id,
+ pr->acpi_id,
+ pr->flags.bm_control ? "yes" : "no",
+ pr->flags.power ? "yes" : "no",
+ pr->flags.throttling ? "yes" : "no",
+ pr->flags.limit ? "yes" : "no");
+
+ end:
+ return 0;
+}
+
+static int acpi_processor_info_open_fs(struct inode *inode, struct file *file)
+{
+ return single_open(file, acpi_processor_info_seq_show,
+ PDE(inode)->data);
+}
+
+static int __cpuinit acpi_processor_add_fs(struct acpi_device *device)
+{
+ struct proc_dir_entry *entry = NULL;
+
+
+ if (!acpi_device_dir(device)) {
+ acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
+ acpi_processor_dir);
+ if (!acpi_device_dir(device))
+ return -ENODEV;
+ }
+
+ /* 'info' [R] */
+ entry = proc_create_data(ACPI_PROCESSOR_FILE_INFO,
+ S_IRUGO, acpi_device_dir(device),
+ &acpi_processor_info_fops,
+ acpi_driver_data(device));
+ if (!entry)
+ return -EIO;
+
+ /* 'throttling' [R/W] */
+ entry = proc_create_data(ACPI_PROCESSOR_FILE_THROTTLING,
+ S_IFREG | S_IRUGO | S_IWUSR,
+ acpi_device_dir(device),
+ &acpi_processor_throttling_fops,
+ acpi_driver_data(device));
+ if (!entry)
+ return -EIO;
+
+ /* 'limit' [R/W] */
+ entry = proc_create_data(ACPI_PROCESSOR_FILE_LIMIT,
+ S_IFREG | S_IRUGO | S_IWUSR,
+ acpi_device_dir(device),
+ &acpi_processor_limit_fops,
+ acpi_driver_data(device));
+ if (!entry)
+ return -EIO;
+ return 0;
+}
+static int acpi_processor_remove_fs(struct acpi_device *device)
+{
+
+ if (acpi_device_dir(device)) {
+ remove_proc_entry(ACPI_PROCESSOR_FILE_INFO,
+ acpi_device_dir(device));
+ remove_proc_entry(ACPI_PROCESSOR_FILE_THROTTLING,
+ acpi_device_dir(device));
+ remove_proc_entry(ACPI_PROCESSOR_FILE_LIMIT,
+ acpi_device_dir(device));
+ remove_proc_entry(acpi_device_bid(device), acpi_processor_dir);
+ acpi_device_dir(device) = NULL;
+ }
+
+ return 0;
+}
+#else
+static inline int acpi_processor_add_fs(struct acpi_device *device)
+{
+ return 0;
+}
+static inline int acpi_processor_remove_fs(struct acpi_device *device)
+{
+ return 0;
+}
+#endif
+
+/* --------------------------------------------------------------------------
+ Driver Interface
+ -------------------------------------------------------------------------- */
+
+static int acpi_processor_get_info(struct acpi_device *device)
+{
+ acpi_status status = 0;
+ union acpi_object object = { 0 };
+ struct acpi_buffer buffer = { sizeof(union acpi_object), &object };
+ struct acpi_processor *pr;
+ int cpu_index, device_declaration = 0;
+ static int cpu0_initialized;
+
+ pr = acpi_driver_data(device);
+ if (!pr)
+ return -EINVAL;
+
+ if (num_online_cpus() > 1)
+ errata.smp = TRUE;
+
+ acpi_processor_errata(pr);
+
+ /*
+ * Check to see if we have bus mastering arbitration control. This
+ * is required for proper C3 usage (to maintain cache coherency).
+ */
+ if (acpi_gbl_FADT.pm2_control_block && acpi_gbl_FADT.pm2_control_length) {
+ pr->flags.bm_control = 1;
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Bus mastering arbitration control present\n"));
+ } else
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "No bus mastering arbitration control\n"));
+
+ if (!strcmp(acpi_device_hid(device), ACPI_PROCESSOR_OBJECT_HID)) {
+ /* Declared with "Processor" statement; match ProcessorID */
+ status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer);
+ if (ACPI_FAILURE(status)) {
+ printk(KERN_ERR PREFIX "Evaluating processor object\n");
+ return -ENODEV;
+ }
+
+ /*
+ * TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP.
+ * >>> 'acpi_get_processor_id(acpi_id, &id)' in
+ * arch/xxx/acpi.c
+ */
+ pr->acpi_id = object.processor.proc_id;
+ } else {
+ /*
+ * Declared with "Device" statement; match _UID.
+ * Note that we don't handle string _UIDs yet.
+ */
+ unsigned long long value;
+ status = acpi_evaluate_integer(pr->handle, METHOD_NAME__UID,
+ NULL, &value);
+ if (ACPI_FAILURE(status)) {
+ printk(KERN_ERR PREFIX
+ "Evaluating processor _UID [%#x]\n", status);
+ return -ENODEV;
+ }
+ device_declaration = 1;
+ pr->acpi_id = value;
+ }
+ cpu_index = acpi_get_cpuid(pr->handle, device_declaration, pr->acpi_id);
+
+ /* Handle UP system running SMP kernel, with no LAPIC in MADT */
+ if (!cpu0_initialized && (cpu_index == -1) &&
+ (num_online_cpus() == 1)) {
+ cpu_index = 0;
+ }
+
+ cpu0_initialized = 1;
+
+ pr->id = cpu_index;
+
+ /*
+ * Extra Processor objects may be enumerated on MP systems with
+ * less than the max # of CPUs. They should be ignored _iff
+ * they are physically not present.
+ */
+ if (pr->id == -1) {
+ if (ACPI_FAILURE
+ (acpi_processor_hotadd_init(pr->handle, &pr->id))) {
+ return -ENODEV;
+ }
+ }
+ /*
+ * On some boxes several processors use the same processor bus id.
+ * But they are located in different scope. For example:
+ * \_SB.SCK0.CPU0
+ * \_SB.SCK1.CPU0
+ * Rename the processor device bus id. And the new bus id will be
+ * generated as the following format:
+ * CPU+CPU ID.
+ */
+ sprintf(acpi_device_bid(device), "CPU%X", pr->id);
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Processor [%d:%d]\n", pr->id,
+ pr->acpi_id));
+
+ if (!object.processor.pblk_address)
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No PBLK (NULL address)\n"));
+ else if (object.processor.pblk_length != 6)
+ printk(KERN_ERR PREFIX "Invalid PBLK length [%d]\n",
+ object.processor.pblk_length);
+ else {
+ pr->throttling.address = object.processor.pblk_address;
+ pr->throttling.duty_offset = acpi_gbl_FADT.duty_offset;
+ pr->throttling.duty_width = acpi_gbl_FADT.duty_width;
+
+ pr->pblk = object.processor.pblk_address;
+
+ /*
+ * We don't care about error returns - we just try to mark
+ * these reserved so that nobody else is confused into thinking
+ * that this region might be unused..
+ *
+ * (In particular, allocating the IO range for Cardbus)
+ */
+ request_region(pr->throttling.address, 6, "ACPI CPU throttle");
+ }
+
+ /*
+ * If ACPI describes a slot number for this CPU, we can use it
+ * ensure we get the right value in the "physical id" field
+ * of /proc/cpuinfo
+ */
+ status = acpi_evaluate_object(pr->handle, "_SUN", NULL, &buffer);
+ if (ACPI_SUCCESS(status))
+ arch_fix_phys_package_id(pr->id, object.integer.value);
+
+ return 0;
+}
+
+static DEFINE_PER_CPU(void *, processor_device_array);
+
+static void acpi_processor_notify(struct acpi_device *device, u32 event)
+{
+ struct acpi_processor *pr = acpi_driver_data(device);
+ int saved;
+
+ if (!pr)
+ return;
+
+ switch (event) {
+ case ACPI_PROCESSOR_NOTIFY_PERFORMANCE:
+ saved = pr->performance_platform_limit;
+ acpi_processor_ppc_has_changed(pr, 1);
+ if (saved == pr->performance_platform_limit)
+ break;
+ acpi_bus_generate_proc_event(device, event,
+ pr->performance_platform_limit);
+ acpi_bus_generate_netlink_event(device->pnp.device_class,
+ dev_name(&device->dev), event,
+ pr->performance_platform_limit);
+ break;
+ case ACPI_PROCESSOR_NOTIFY_POWER:
+ acpi_processor_cst_has_changed(pr);
+ acpi_bus_generate_proc_event(device, event, 0);
+ acpi_bus_generate_netlink_event(device->pnp.device_class,
+ dev_name(&device->dev), event, 0);
+ break;
+ case ACPI_PROCESSOR_NOTIFY_THROTTLING:
+ acpi_processor_tstate_has_changed(pr);
+ acpi_bus_generate_proc_event(device, event, 0);
+ acpi_bus_generate_netlink_event(device->pnp.device_class,
+ dev_name(&device->dev), event, 0);
+ default:
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Unsupported event [0x%x]\n", event));
+ break;
+ }
+
+ return;
+}
+
+static int acpi_cpu_soft_notify(struct notifier_block *nfb,
+ unsigned long action, void *hcpu)
+{
+ unsigned int cpu = (unsigned long)hcpu;
+ struct acpi_processor *pr = per_cpu(processors, cpu);
+
+ if (action == CPU_ONLINE && pr) {
+ acpi_processor_ppc_has_changed(pr, 0);
+ acpi_processor_cst_has_changed(pr);
+ acpi_processor_tstate_has_changed(pr);
+ }
+ return NOTIFY_OK;
+}
+
+static struct notifier_block acpi_cpu_notifier =
+{
+ .notifier_call = acpi_cpu_soft_notify,
+};
+
+static int __cpuinit acpi_processor_add(struct acpi_device *device)
+{
+ struct acpi_processor *pr = NULL;
+ int result = 0;
+ struct sys_device *sysdev;
+
+ pr = kzalloc(sizeof(struct acpi_processor), GFP_KERNEL);
+ if (!pr)
+ return -ENOMEM;
+
+ if (!zalloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) {
+ kfree(pr);
+ return -ENOMEM;
+ }
+
+ pr->handle = device->handle;
+ strcpy(acpi_device_name(device), ACPI_PROCESSOR_DEVICE_NAME);
+ strcpy(acpi_device_class(device), ACPI_PROCESSOR_CLASS);
+ device->driver_data = pr;
+
+ result = acpi_processor_get_info(device);
+ if (result) {
+ /* Processor is physically not present */
+ return 0;
+ }
+
+ BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0));
+
+ /*
+ * Buggy BIOS check
+ * ACPI id of processors can be reported wrongly by the BIOS.
+ * Don't trust it blindly
+ */
+ if (per_cpu(processor_device_array, pr->id) != NULL &&
+ per_cpu(processor_device_array, pr->id) != device) {
+ printk(KERN_WARNING "BIOS reported wrong ACPI id "
+ "for the processor\n");
+ result = -ENODEV;
+ goto err_free_cpumask;
+ }
+ per_cpu(processor_device_array, pr->id) = device;
+
+ per_cpu(processors, pr->id) = pr;
+
+ result = acpi_processor_add_fs(device);
+ if (result)
+ goto err_free_cpumask;
+
+ sysdev = get_cpu_sysdev(pr->id);
+ if (sysfs_create_link(&device->dev.kobj, &sysdev->kobj, "sysdev")) {
+ result = -EFAULT;
+ goto err_remove_fs;
+ }
+
+#ifdef CONFIG_CPU_FREQ
+ acpi_processor_ppc_has_changed(pr, 0);
+#endif
+ acpi_processor_get_throttling_info(pr);
+ acpi_processor_get_limit_info(pr);
+
+
+ acpi_processor_power_init(pr, device);
+
+ pr->cdev = thermal_cooling_device_register("Processor", device,
+ &processor_cooling_ops);
+ if (IS_ERR(pr->cdev)) {
+ result = PTR_ERR(pr->cdev);
+ goto err_power_exit;
+ }
+
+ dev_dbg(&device->dev, "registered as cooling_device%d\n",
+ pr->cdev->id);
+
+ result = sysfs_create_link(&device->dev.kobj,
+ &pr->cdev->device.kobj,
+ "thermal_cooling");
+ if (result) {
+ printk(KERN_ERR PREFIX "Create sysfs link\n");
+ goto err_thermal_unregister;
+ }
+ result = sysfs_create_link(&pr->cdev->device.kobj,
+ &device->dev.kobj,
+ "device");
+ if (result) {
+ printk(KERN_ERR PREFIX "Create sysfs link\n");
+ goto err_remove_sysfs;
+ }
+
+ return 0;
+
+err_remove_sysfs:
+ sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
+err_thermal_unregister:
+ thermal_cooling_device_unregister(pr->cdev);
+err_power_exit:
+ acpi_processor_power_exit(pr, device);
+err_remove_fs:
+ acpi_processor_remove_fs(device);
+err_free_cpumask:
+ free_cpumask_var(pr->throttling.shared_cpu_map);
+
+ return result;
+}
+
+static int acpi_processor_remove(struct acpi_device *device, int type)
+{
+ struct acpi_processor *pr = NULL;
+
+
+ if (!device || !acpi_driver_data(device))
+ return -EINVAL;
+
+ pr = acpi_driver_data(device);
+
+ if (pr->id >= nr_cpu_ids)
+ goto free;
+
+ if (type == ACPI_BUS_REMOVAL_EJECT) {
+ if (acpi_processor_handle_eject(pr))
+ return -EINVAL;
+ }
+
+ acpi_processor_power_exit(pr, device);
+
+ sysfs_remove_link(&device->dev.kobj, "sysdev");
+
+ acpi_processor_remove_fs(device);
+
+ if (pr->cdev) {
+ sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
+ sysfs_remove_link(&pr->cdev->device.kobj, "device");
+ thermal_cooling_device_unregister(pr->cdev);
+ pr->cdev = NULL;
+ }
+
+ per_cpu(processors, pr->id) = NULL;
+ per_cpu(processor_device_array, pr->id) = NULL;
+
+free:
+ free_cpumask_var(pr->throttling.shared_cpu_map);
+ kfree(pr);
+
+ return 0;
+}
+
+#ifdef CONFIG_ACPI_HOTPLUG_CPU
+/****************************************************************************
+ * Acpi processor hotplug support *
+ ****************************************************************************/
+
+static int is_processor_present(acpi_handle handle)
+{
+ acpi_status status;
+ unsigned long long sta = 0;
+
+
+ status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
+
+ if (ACPI_SUCCESS(status) && (sta & ACPI_STA_DEVICE_PRESENT))
+ return 1;
+
+ /*
+ * _STA is mandatory for a processor that supports hot plug
+ */
+ if (status == AE_NOT_FOUND)
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Processor does not support hot plug\n"));
+ else
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Processor Device is not present"));
+ return 0;
+}
+
+static
+int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device)
+{
+ acpi_handle phandle;
+ struct acpi_device *pdev;
+
+
+ if (acpi_get_parent(handle, &phandle)) {
+ return -ENODEV;
+ }
+
+ if (acpi_bus_get_device(phandle, &pdev)) {
+ return -ENODEV;
+ }
+
+ if (acpi_bus_add(device, pdev, handle, ACPI_BUS_TYPE_PROCESSOR)) {
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+static void __ref acpi_processor_hotplug_notify(acpi_handle handle,
+ u32 event, void *data)
+{
+ struct acpi_processor *pr;
+ struct acpi_device *device = NULL;
+ int result;
+
+
+ switch (event) {
+ case ACPI_NOTIFY_BUS_CHECK:
+ case ACPI_NOTIFY_DEVICE_CHECK:
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Processor driver received %s event\n",
+ (event == ACPI_NOTIFY_BUS_CHECK) ?
+ "ACPI_NOTIFY_BUS_CHECK" : "ACPI_NOTIFY_DEVICE_CHECK"));
+
+ if (!is_processor_present(handle))
+ break;
+
+ if (acpi_bus_get_device(handle, &device)) {
+ result = acpi_processor_device_add(handle, &device);
+ if (result)
+ printk(KERN_ERR PREFIX
+ "Unable to add the device\n");
+ break;
+ }
+ break;
+ case ACPI_NOTIFY_EJECT_REQUEST:
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "received ACPI_NOTIFY_EJECT_REQUEST\n"));
+
+ if (acpi_bus_get_device(handle, &device)) {
+ printk(KERN_ERR PREFIX
+ "Device don't exist, dropping EJECT\n");
+ break;
+ }
+ pr = acpi_driver_data(device);
+ if (!pr) {
+ printk(KERN_ERR PREFIX
+ "Driver data is NULL, dropping EJECT\n");
+ return;
+ }
+ break;
+ default:
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Unsupported event [0x%x]\n", event));
+ break;
+ }
+
+ return;
+}
+
+static acpi_status
+processor_walk_namespace_cb(acpi_handle handle,
+ u32 lvl, void *context, void **rv)
+{
+ acpi_status status;
+ int *action = context;
+ acpi_object_type type = 0;
+
+ status = acpi_get_type(handle, &type);
+ if (ACPI_FAILURE(status))
+ return (AE_OK);
+
+ if (type != ACPI_TYPE_PROCESSOR)
+ return (AE_OK);
+
+ switch (*action) {
+ case INSTALL_NOTIFY_HANDLER:
+ acpi_install_notify_handler(handle,
+ ACPI_SYSTEM_NOTIFY,
+ acpi_processor_hotplug_notify,
+ NULL);
+ break;
+ case UNINSTALL_NOTIFY_HANDLER:
+ acpi_remove_notify_handler(handle,
+ ACPI_SYSTEM_NOTIFY,
+ acpi_processor_hotplug_notify);
+ break;
+ default:
+ break;
+ }
+
+ return (AE_OK);
+}
+
+static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu)
+{
+
+ if (!is_processor_present(handle)) {
+ return AE_ERROR;
+ }
+
+ if (acpi_map_lsapic(handle, p_cpu))
+ return AE_ERROR;
+
+ if (arch_register_cpu(*p_cpu)) {
+ acpi_unmap_lsapic(*p_cpu);
+ return AE_ERROR;
+ }
+
+ return AE_OK;
+}
+
+static int acpi_processor_handle_eject(struct acpi_processor *pr)
+{
+ if (cpu_online(pr->id))
+ cpu_down(pr->id);
+
+ arch_unregister_cpu(pr->id);
+ acpi_unmap_lsapic(pr->id);
+ return (0);
+}
+#else
+static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu)
+{
+ return AE_ERROR;
+}
+static int acpi_processor_handle_eject(struct acpi_processor *pr)
+{
+ return (-EINVAL);
+}
+#endif
+
+static
+void acpi_processor_install_hotplug_notify(void)
+{
+#ifdef CONFIG_ACPI_HOTPLUG_CPU
+ int action = INSTALL_NOTIFY_HANDLER;
+ acpi_walk_namespace(ACPI_TYPE_PROCESSOR,
+ ACPI_ROOT_OBJECT,
+ ACPI_UINT32_MAX,
+ processor_walk_namespace_cb, NULL, &action, NULL);
+#endif
+ register_hotcpu_notifier(&acpi_cpu_notifier);
+}
+
+static
+void acpi_processor_uninstall_hotplug_notify(void)
+{
+#ifdef CONFIG_ACPI_HOTPLUG_CPU
+ int action = UNINSTALL_NOTIFY_HANDLER;
+ acpi_walk_namespace(ACPI_TYPE_PROCESSOR,
+ ACPI_ROOT_OBJECT,
+ ACPI_UINT32_MAX,
+ processor_walk_namespace_cb, NULL, &action, NULL);
+#endif
+ unregister_hotcpu_notifier(&acpi_cpu_notifier);
+}
+
+/*
+ * We keep the driver loaded even when ACPI is not running.
+ * This is needed for the powernow-k8 driver, that works even without
+ * ACPI, but needs symbols from this driver
+ */
+
+static int __init acpi_processor_init(void)
+{
+ int result = 0;
+
+ if (acpi_disabled)
+ return 0;
+
+ memset(&errata, 0, sizeof(errata));
+
+#ifdef CONFIG_ACPI_PROCFS
+ acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir);
+ if (!acpi_processor_dir)
+ return -ENOMEM;
+#endif
+ result = cpuidle_register_driver(&acpi_idle_driver);
+ if (result < 0)
+ goto out_proc;
+
+ result = acpi_bus_register_driver(&acpi_processor_driver);
+ if (result < 0)
+ goto out_cpuidle;
+
+ acpi_processor_install_hotplug_notify();
+
+ acpi_thermal_cpufreq_init();
+
+ acpi_processor_ppc_init();
+
+ acpi_processor_throttling_init();
+
+ return 0;
+
+out_cpuidle:
+ cpuidle_unregister_driver(&acpi_idle_driver);
+
+out_proc:
+#ifdef CONFIG_ACPI_PROCFS
+ remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
+#endif
+
+ return result;
+}
+
+static void __exit acpi_processor_exit(void)
+{
+ if (acpi_disabled)
+ return;
+
+ acpi_processor_ppc_exit();
+
+ acpi_thermal_cpufreq_exit();
+
+ acpi_processor_uninstall_hotplug_notify();
+
+ acpi_bus_unregister_driver(&acpi_processor_driver);
+
+ cpuidle_unregister_driver(&acpi_idle_driver);
+
+#ifdef CONFIG_ACPI_PROCFS
+ remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
+#endif
+
+ return;
+}
+
+module_init(acpi_processor_init);
+module_exit(acpi_processor_exit);
+
+EXPORT_SYMBOL(acpi_processor_set_thermal_limit);
+
+MODULE_ALIAS("processor");
+++ /dev/null
-/*
- * Copyright (C) 2005 Intel Corporation
- * Copyright (C) 2009 Hewlett-Packard Development Company, L.P.
- *
- * Alex Chiang <achiang@hp.com>
- * - Unified x86/ia64 implementations
- * Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
- * - Added _PDC for platforms with Intel CPUs
- */
-#include <linux/dmi.h>
-
-#include <acpi/acpi_drivers.h>
-#include <acpi/processor.h>
-
-#include "internal.h"
-
-#define PREFIX "ACPI: "
-#define _COMPONENT ACPI_PROCESSOR_COMPONENT
-ACPI_MODULE_NAME("processor_pdc");
-
-static int set_no_mwait(const struct dmi_system_id *id)
-{
- printk(KERN_NOTICE PREFIX "%s detected - "
- "disabling mwait for CPU C-states\n", id->ident);
- idle_nomwait = 1;
- return 0;
-}
-
-static struct dmi_system_id __cpuinitdata processor_idle_dmi_table[] = {
- {
- set_no_mwait, "IFL91 board", {
- DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
- DMI_MATCH(DMI_SYS_VENDOR, "ZEPTO"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "3215W"),
- DMI_MATCH(DMI_BOARD_NAME, "IFL91") }, NULL},
- {
- set_no_mwait, "Extensa 5220", {
- DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
- DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
- DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
- DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL},
- {},
-};
-
-static void acpi_set_pdc_bits(u32 *buf)
-{
- buf[0] = ACPI_PDC_REVISION_ID;
- buf[1] = 1;
-
- /* Enable coordination with firmware's _TSD info */
- buf[2] = ACPI_PDC_SMP_T_SWCOORD;
-
- /* Twiddle arch-specific bits needed for _PDC */
- arch_acpi_set_pdc_bits(buf);
-}
-
-static struct acpi_object_list *acpi_processor_alloc_pdc(void)
-{
- struct acpi_object_list *obj_list;
- union acpi_object *obj;
- u32 *buf;
-
- /* allocate and initialize pdc. It will be used later. */
- obj_list = kmalloc(sizeof(struct acpi_object_list), GFP_KERNEL);
- if (!obj_list) {
- printk(KERN_ERR "Memory allocation error\n");
- return NULL;
- }
-
- obj = kmalloc(sizeof(union acpi_object), GFP_KERNEL);
- if (!obj) {
- printk(KERN_ERR "Memory allocation error\n");
- kfree(obj_list);
- return NULL;
- }
-
- buf = kmalloc(12, GFP_KERNEL);
- if (!buf) {
- printk(KERN_ERR "Memory allocation error\n");
- kfree(obj);
- kfree(obj_list);
- return NULL;
- }
-
- acpi_set_pdc_bits(buf);
-
- obj->type = ACPI_TYPE_BUFFER;
- obj->buffer.length = 12;
- obj->buffer.pointer = (u8 *) buf;
- obj_list->count = 1;
- obj_list->pointer = obj;
-
- return obj_list;
-}
-
-/*
- * _PDC is required for a BIOS-OS handshake for most of the newer
- * ACPI processor features.
- */
-static int
-acpi_processor_eval_pdc(acpi_handle handle, struct acpi_object_list *pdc_in)
-{
- acpi_status status = AE_OK;
-
- if (idle_nomwait) {
- /*
- * If mwait is disabled for CPU C-states, the C2C3_FFH access
- * mode will be disabled in the parameter of _PDC object.
- * Of course C1_FFH access mode will also be disabled.
- */
- union acpi_object *obj;
- u32 *buffer = NULL;
-
- obj = pdc_in->pointer;
- buffer = (u32 *)(obj->buffer.pointer);
- buffer[2] &= ~(ACPI_PDC_C_C2C3_FFH | ACPI_PDC_C_C1_FFH);
-
- }
- status = acpi_evaluate_object(handle, "_PDC", pdc_in, NULL);
-
- if (ACPI_FAILURE(status))
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Could not evaluate _PDC, using legacy perf. control.\n"));
-
- return status;
-}
-
-static int early_pdc_done;
-
-void acpi_processor_set_pdc(acpi_handle handle)
-{
- struct acpi_object_list *obj_list;
-
- if (arch_has_acpi_pdc() == false)
- return;
-
- if (early_pdc_done)
- return;
-
- obj_list = acpi_processor_alloc_pdc();
- if (!obj_list)
- return;
-
- acpi_processor_eval_pdc(handle, obj_list);
-
- kfree(obj_list->pointer->buffer.pointer);
- kfree(obj_list->pointer);
- kfree(obj_list);
-}
-EXPORT_SYMBOL_GPL(acpi_processor_set_pdc);
-
-static int early_pdc_optin;
-static int set_early_pdc_optin(const struct dmi_system_id *id)
-{
- early_pdc_optin = 1;
- return 0;
-}
-
-static int param_early_pdc_optin(char *s)
-{
- early_pdc_optin = 1;
- return 1;
-}
-__setup("acpi_early_pdc_eval", param_early_pdc_optin);
-
-static struct dmi_system_id __cpuinitdata early_pdc_optin_table[] = {
- {
- set_early_pdc_optin, "HP Envy", {
- DMI_MATCH(DMI_BIOS_VENDOR, "Hewlett-Packard"),
- DMI_MATCH(DMI_PRODUCT_NAME, "HP Envy") }, NULL},
- {
- set_early_pdc_optin, "HP Pavilion dv6", {
- DMI_MATCH(DMI_BIOS_VENDOR, "Hewlett-Packard"),
- DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv6") }, NULL},
- {
- set_early_pdc_optin, "HP Pavilion dv7", {
- DMI_MATCH(DMI_BIOS_VENDOR, "Hewlett-Packard"),
- DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv7") }, NULL},
- {},
-};
-
-static acpi_status
-early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv)
-{
- acpi_processor_set_pdc(handle);
- return AE_OK;
-}
-
-void __init acpi_early_processor_set_pdc(void)
-{
- /*
- * Check whether the system is DMI table. If yes, OSPM
- * should not use mwait for CPU-states.
- */
- dmi_check_system(processor_idle_dmi_table);
-
- /*
- * Allow systems to opt-in to early _PDC evaluation.
- */
- dmi_check_system(early_pdc_optin_table);
- if (!early_pdc_optin)
- return;
-
- acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
- ACPI_UINT32_MAX,
- early_init_pdc, NULL, NULL, NULL);
-
- early_pdc_done = 1;
-}
int result = 0;
struct acpi_processor_throttling *pthrottling;
- if (!pr)
- return -EINVAL;
-
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"pblk_address[0x%08x] duty_offset[%d] duty_width[%d]\n",
pr->throttling.address,
case POWER_SUPPLY_PROP_TECHNOLOGY:
val->intval = acpi_battery_technology(battery);
break;
+ case POWER_SUPPLY_PROP_CYCLE_COUNT:
+ val->intval = battery->cycle_count;
+ break;
case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
val->intval = battery->design_voltage *
acpi_battery_vscale(battery) * 1000;
POWER_SUPPLY_PROP_STATUS,
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
POWER_SUPPLY_PROP_VOLTAGE_NOW,
POWER_SUPPLY_PROP_CURRENT_NOW,
battery->design_voltage * acpi_battery_vscale(battery));
seq_printf(seq, "design capacity warning: unknown\n");
seq_printf(seq, "design capacity low: unknown\n");
+ seq_printf(seq, "cycle count: %i\n", battery->cycle_count);
seq_printf(seq, "capacity granularity 1: unknown\n");
seq_printf(seq, "capacity granularity 2: unknown\n");
seq_printf(seq, "model number: %s\n", battery->device_name);
hibernate_nvs_restore();
}
-static void acpi_pm_enable_gpes(void)
+static int acpi_pm_pre_restore(void)
{
+ acpi_disable_all_gpes();
+ acpi_os_wait_events_complete(NULL);
+ acpi_ec_suspend_transactions();
+ return 0;
+}
+
+static void acpi_pm_restore_cleanup(void)
+{
+ acpi_ec_resume_transactions();
acpi_enable_all_runtime_gpes();
}
.prepare = acpi_pm_prepare,
.enter = acpi_hibernation_enter,
.leave = acpi_hibernation_leave,
- .pre_restore = acpi_pm_disable_gpes,
- .restore_cleanup = acpi_pm_enable_gpes,
+ .pre_restore = acpi_pm_pre_restore,
+ .restore_cleanup = acpi_pm_restore_cleanup,
};
/**
.prepare = acpi_pm_disable_gpes,
.enter = acpi_hibernation_enter,
.leave = acpi_hibernation_leave,
- .pre_restore = acpi_pm_disable_gpes,
- .restore_cleanup = acpi_pm_enable_gpes,
+ .pre_restore = acpi_pm_pre_restore,
+ .restore_cleanup = acpi_pm_restore_cleanup,
.recover = acpi_pm_finish,
};
#endif /* CONFIG_HIBERNATION */
int valid = 0;
int i;
- /* Critical Shutdown (required) */
+ /* Critical Shutdown */
if (flag & ACPI_TRIPS_CRITICAL) {
status = acpi_evaluate_integer(tz->device->handle,
"_CRT", NULL, &tmp);
* Below zero (Celsius) values clearly aren't right for sure..
* ... so lets discard those as invalid.
*/
- if (ACPI_FAILURE(status) ||
- tz->trips.critical.temperature <= 2732) {
+ if (ACPI_FAILURE(status)) {
+ tz->trips.critical.flags.valid = 0;
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "No critical threshold\n"));
+ } else if (tmp <= 2732) {
+ printk(KERN_WARNING FW_BUG "Invalid critical threshold "
+ "(%llu)\n", tmp);
tz->trips.critical.flags.valid = 0;
- ACPI_EXCEPTION((AE_INFO, status,
- "No or invalid critical threshold"));
- return -ENODEV;
} else {
tz->trips.critical.flags.valid = 1;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Found critical threshold [%lu]\n",
- tz->trips.critical.temperature));
+ "Found critical threshold [%lu]\n",
+ tz->trips.critical.temperature));
}
if (tz->trips.critical.flags.valid == 1) {
if (crt == -1) {
static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
{
- return acpi_thermal_trips_update(tz, ACPI_TRIPS_INIT);
+ int i, valid, ret = acpi_thermal_trips_update(tz, ACPI_TRIPS_INIT);
+
+ if (ret)
+ return ret;
+
+ valid = tz->trips.critical.flags.valid |
+ tz->trips.hot.flags.valid |
+ tz->trips.passive.flags.valid;
+
+ for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++)
+ valid |= tz->trips.active[i].flags.valid;
+
+ if (!valid) {
+ printk(KERN_WARNING FW_BUG "No valid trip found\n");
+ return -ENODEV;
+ }
+ return 0;
}
static void acpi_thermal_check(void *data)
EXPORT_SYMBOL(acpi_evaluate_integer);
-#if 0
-acpi_status
-acpi_evaluate_string(acpi_handle handle,
- acpi_string pathname,
- acpi_object_list * arguments, acpi_string * data)
-{
- acpi_status status = AE_OK;
- acpi_object *element = NULL;
- acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
-
-
- if (!data)
- return AE_BAD_PARAMETER;
-
- status = acpi_evaluate_object(handle, pathname, arguments, &buffer);
- if (ACPI_FAILURE(status)) {
- acpi_util_eval_error(handle, pathname, status);
- return status;
- }
-
- element = (acpi_object *) buffer.pointer;
-
- if ((element->type != ACPI_TYPE_STRING)
- || (element->type != ACPI_TYPE_BUFFER)
- || !element->string.length) {
- acpi_util_eval_error(handle, pathname, AE_BAD_DATA);
- return AE_BAD_DATA;
- }
-
- *data = kzalloc(element->string.length + 1, GFP_KERNEL);
- if (!data) {
- printk(KERN_ERR PREFIX "Memory allocation\n");
- return -ENOMEM;
- }
-
- memcpy(*data, element->string.pointer, element->string.length);
-
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Return value [%s]\n", *data));
-
- kfree(buffer.pointer);
-
- return AE_OK;
-}
-#endif
-
acpi_status
acpi_evaluate_reference(acpi_handle handle,
acpi_string pathname,
int level);
static int acpi_video_device_lcd_get_level_current(
struct acpi_video_device *device,
- unsigned long long *level);
+ unsigned long long *level, int init);
static int acpi_video_get_next_level(struct acpi_video_device *device,
u32 level_current, u32 event);
static int acpi_video_switch_brightness(struct acpi_video_device *device,
struct acpi_video_device *vd =
(struct acpi_video_device *)bl_get_data(bd);
- if (acpi_video_device_lcd_get_level_current(vd, &cur_level))
+ if (acpi_video_device_lcd_get_level_current(vd, &cur_level, 0))
return -EINVAL;
for (i = 2; i < vd->brightness->count; i++) {
if (vd->brightness->levels[i] == cur_level)
unsigned long long level;
int offset;
- if (acpi_video_device_lcd_get_level_current(video, &level))
+ if (acpi_video_device_lcd_get_level_current(video, &level, 0))
return -EINVAL;
for (offset = 2; offset < video->brightness->count; offset++)
if (level == video->brightness->levels[offset]) {
static int
acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
- unsigned long long *level)
+ unsigned long long *level, int init)
{
acpi_status status = AE_OK;
int i;
device->brightness->curr = *level;
return 0;
}
- /* BQC returned an invalid level. Stop using it. */
- ACPI_WARNING((AE_INFO, "%s returned an invalid level",
- buf));
- device->cap._BQC = device->cap._BCQ = 0;
+ if (!init) {
+ /*
+ * BQC returned an invalid level.
+ * Stop using it.
+ */
+ ACPI_WARNING((AE_INFO,
+ "%s returned an invalid level",
+ buf));
+ device->cap._BQC = device->cap._BCQ = 0;
+ }
} else {
/* Fixme:
* should we return an error or ignore this failure?
if (!device->cap._BQC)
goto set_level;
- result = acpi_video_device_lcd_get_level_current(device, &level_old);
+ result = acpi_video_device_lcd_get_level_current(device, &level_old, 1);
if (result)
goto out_free_levels;
if (result)
goto out_free_levels;
- result = acpi_video_device_lcd_get_level_current(device, &level);
+ result = acpi_video_device_lcd_get_level_current(device, &level, 0);
if (result)
goto out_free_levels;
goto out;
result = acpi_video_device_lcd_get_level_current(device,
- &level_current);
+ &level_current, 0);
if (result)
goto out;
return retval;
}
+static void acpiphp_set_acpi_region(struct acpiphp_slot *slot)
+{
+ struct acpiphp_func *func;
+ union acpi_object params[2];
+ struct acpi_object_list arg_list;
+
+ list_for_each_entry(func, &slot->funcs, sibling) {
+ arg_list.count = 2;
+ arg_list.pointer = params;
+ params[0].type = ACPI_TYPE_INTEGER;
+ params[0].integer.value = ACPI_ADR_SPACE_PCI_CONFIG;
+ params[1].type = ACPI_TYPE_INTEGER;
+ params[1].integer.value = 1;
+ /* _REG is optional, we don't care about if there is failure */
+ acpi_evaluate_object(func->handle, "_REG", &arg_list, NULL);
+ }
+}
+
/**
* enable_device - enable, configure a slot
* @slot: slot to be enabled
pci_bus_assign_resources(bus);
acpiphp_sanitize_bus(bus);
acpiphp_set_hpp_values(bus);
+ acpiphp_set_acpi_region(slot);
pci_enable_bridges(bus);
pci_bus_add_devices(bus);
struct input_dev *key_dev;
struct kfifo fifo;
spinlock_t fifo_lock;
- struct workqueue_struct *wq;
+ struct timer_list release_key_timer;
};
static struct sony_laptop_input_s sony_laptop_input = {
};
/* release buttons after a short delay if pressed */
-static void do_sony_laptop_release_key(struct work_struct *work)
+static void do_sony_laptop_release_key(unsigned long unused)
{
struct sony_laptop_keypress kp;
+ unsigned long flags;
+
+ spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
- while (kfifo_out_locked(&sony_laptop_input.fifo, (unsigned char *)&kp,
- sizeof(kp), &sony_laptop_input.fifo_lock)
- == sizeof(kp)) {
- msleep(10);
+ if (kfifo_out(&sony_laptop_input.fifo,
+ (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
input_report_key(kp.dev, kp.key, 0);
input_sync(kp.dev);
}
+
+ /* If there is something in the fifo schedule next release. */
+ if (kfifo_len(&sony_laptop_input.fifo) != 0)
+ mod_timer(&sony_laptop_input.release_key_timer,
+ jiffies + msecs_to_jiffies(10));
+
+ spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
}
-static DECLARE_WORK(sony_laptop_release_key_work,
- do_sony_laptop_release_key);
/* forward event to the input subsystem */
static void sony_laptop_report_input_event(u8 event)
/* we emit the scancode so we can always remap the key */
input_event(kp.dev, EV_MSC, MSC_SCAN, event);
input_sync(kp.dev);
- kfifo_in_locked(&sony_laptop_input.fifo,
- (unsigned char *)&kp, sizeof(kp),
- &sony_laptop_input.fifo_lock);
- if (!work_pending(&sony_laptop_release_key_work))
- queue_work(sony_laptop_input.wq,
- &sony_laptop_release_key_work);
+ /* schedule key release */
+ kfifo_in_locked(&sony_laptop_input.fifo,
+ (unsigned char *)&kp, sizeof(kp),
+ &sony_laptop_input.fifo_lock);
+ mod_timer(&sony_laptop_input.release_key_timer,
+ jiffies + msecs_to_jiffies(10));
} else
dprintk("unknown input event %.2x\n", event);
}
/* kfifo */
spin_lock_init(&sony_laptop_input.fifo_lock);
- error =
- kfifo_alloc(&sony_laptop_input.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
+ error = kfifo_alloc(&sony_laptop_input.fifo,
+ SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
if (error) {
printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
goto err_dec_users;
}
- /* init workqueue */
- sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop");
- if (!sony_laptop_input.wq) {
- printk(KERN_ERR DRV_PFX
- "Unable to create workqueue.\n");
- error = -ENXIO;
- goto err_free_kfifo;
- }
+ setup_timer(&sony_laptop_input.release_key_timer,
+ do_sony_laptop_release_key, 0);
/* input keys */
key_dev = input_allocate_device();
if (!key_dev) {
error = -ENOMEM;
- goto err_destroy_wq;
+ goto err_free_kfifo;
}
key_dev->name = "Sony Vaio Keys";
key_dev->dev.parent = &acpi_device->dev;
/* Initialize the Input Drivers: special keys */
- set_bit(EV_KEY, key_dev->evbit);
- set_bit(EV_MSC, key_dev->evbit);
- set_bit(MSC_SCAN, key_dev->mscbit);
+ input_set_capability(key_dev, EV_MSC, MSC_SCAN);
+
+ __set_bit(EV_KEY, key_dev->evbit);
key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
key_dev->keycode = &sony_laptop_input_keycode_map;
- for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) {
- if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) {
- set_bit(sony_laptop_input_keycode_map[i],
- key_dev->keybit);
- }
- }
+ for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
+ __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
+ __clear_bit(KEY_RESERVED, key_dev->keybit);
error = input_register_device(key_dev);
if (error)
jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
key_dev->dev.parent = &acpi_device->dev;
- jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
- jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE);
- jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
+ input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
+ input_set_capability(jog_dev, EV_REL, REL_WHEEL);
error = input_register_device(jog_dev);
if (error)
err_free_keydev:
input_free_device(key_dev);
-err_destroy_wq:
- destroy_workqueue(sony_laptop_input.wq);
-
err_free_kfifo:
kfifo_free(&sony_laptop_input.fifo);
static void sony_laptop_remove_input(void)
{
- /* cleanup only after the last user has gone */
+ struct sony_laptop_keypress kp = { NULL };
+
+ /* Cleanup only after the last user has gone */
if (!atomic_dec_and_test(&sony_laptop_input.users))
return;
- /* flush workqueue first */
- flush_workqueue(sony_laptop_input.wq);
+ del_timer_sync(&sony_laptop_input.release_key_timer);
+
+ /*
+ * Generate key-up events for remaining keys. Note that we don't
+ * need locking since nobody is adding new events to the kfifo.
+ */
+ while (kfifo_out(&sony_laptop_input.fifo,
+ (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
+ input_report_key(kp.dev, kp.key, 0);
+ input_sync(kp.dev);
+ }
/* destroy input devs */
input_unregister_device(sony_laptop_input.key_dev);
sony_laptop_input.jog_dev = NULL;
}
- destroy_workqueue(sony_laptop_input.wq);
kfifo_free(&sony_laptop_input.fifo);
}
struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev,
resource_size_t start,
resource_size_t end, int flags);
+struct pnp_resource *pnp_add_bus_resource(struct pnp_dev *dev,
+ resource_size_t start,
+ resource_size_t end);
extern int pnp_debug;
switch (pnp_resource_type(res)) {
case IORESOURCE_IO:
case IORESOURCE_MEM:
- pnp_printf(buffer, " %#llx-%#llx\n",
+ case IORESOURCE_BUS:
+ pnp_printf(buffer, " %#llx-%#llx%s\n",
(unsigned long long) res->start,
- (unsigned long long) res->end);
+ (unsigned long long) res->end,
+ res->flags & IORESOURCE_WINDOW ?
+ " window" : "");
break;
case IORESOURCE_IRQ:
case IORESOURCE_DMA:
}
static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start,
- u64 len, int io_decode)
+ u64 len, int io_decode,
+ int window)
{
int flags = 0;
u64 end = start + len - 1;
flags |= IORESOURCE_IO_16BIT_ADDR;
if (len == 0 || end >= 0x10003)
flags |= IORESOURCE_DISABLED;
+ if (window)
+ flags |= IORESOURCE_WINDOW;
pnp_add_io_resource(dev, start, end, flags);
}
static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
u64 start, u64 len,
- int write_protect)
+ int write_protect, int window)
{
int flags = 0;
u64 end = start + len - 1;
flags |= IORESOURCE_DISABLED;
if (write_protect == ACPI_READ_WRITE_MEMORY)
flags |= IORESOURCE_MEM_WRITEABLE;
+ if (window)
+ flags |= IORESOURCE_WINDOW;
pnp_add_mem_resource(dev, start, end, flags);
}
+static void pnpacpi_parse_allocated_busresource(struct pnp_dev *dev,
+ u64 start, u64 len)
+{
+ u64 end = start + len - 1;
+
+ pnp_add_bus_resource(dev, start, end);
+}
+
static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
struct acpi_resource *res)
{
struct acpi_resource_address64 addr, *p = &addr;
acpi_status status;
+ int window;
status = acpi_resource_to_address64(res, p);
if (!ACPI_SUCCESS(status)) {
return;
}
- if (p->producer_consumer == ACPI_PRODUCER)
- return;
+ window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
if (p->resource_type == ACPI_MEMORY_RANGE)
pnpacpi_parse_allocated_memresource(dev,
p->minimum, p->address_length,
- p->info.mem.write_protect);
+ p->info.mem.write_protect, window);
else if (p->resource_type == ACPI_IO_RANGE)
pnpacpi_parse_allocated_ioresource(dev,
p->minimum, p->address_length,
p->granularity == 0xfff ? ACPI_DECODE_10 :
- ACPI_DECODE_16);
+ ACPI_DECODE_16, window);
+ else if (p->resource_type == ACPI_BUS_NUMBER_RANGE)
+ pnpacpi_parse_allocated_busresource(dev, p->minimum,
+ p->address_length);
}
static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev,
struct acpi_resource *res)
{
struct acpi_resource_extended_address64 *p = &res->data.ext_address64;
+ int window;
- if (p->producer_consumer == ACPI_PRODUCER)
- return;
+ window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
if (p->resource_type == ACPI_MEMORY_RANGE)
pnpacpi_parse_allocated_memresource(dev,
p->minimum, p->address_length,
- p->info.mem.write_protect);
+ p->info.mem.write_protect, window);
else if (p->resource_type == ACPI_IO_RANGE)
pnpacpi_parse_allocated_ioresource(dev,
p->minimum, p->address_length,
p->granularity == 0xfff ? ACPI_DECODE_10 :
- ACPI_DECODE_16);
+ ACPI_DECODE_16, window);
+ else if (p->resource_type == ACPI_BUS_NUMBER_RANGE)
+ pnpacpi_parse_allocated_busresource(dev, p->minimum,
+ p->address_length);
}
static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
pnpacpi_parse_allocated_ioresource(dev,
io->minimum,
io->address_length,
- io->io_decode);
+ io->io_decode, 0);
break;
case ACPI_RESOURCE_TYPE_START_DEPENDENT:
pnpacpi_parse_allocated_ioresource(dev,
fixed_io->address,
fixed_io->address_length,
- ACPI_DECODE_10);
+ ACPI_DECODE_10, 0);
break;
case ACPI_RESOURCE_TYPE_VENDOR:
pnpacpi_parse_allocated_memresource(dev,
memory24->minimum,
memory24->address_length,
- memory24->write_protect);
+ memory24->write_protect, 0);
break;
case ACPI_RESOURCE_TYPE_MEMORY32:
memory32 = &res->data.memory32;
pnpacpi_parse_allocated_memresource(dev,
memory32->minimum,
memory32->address_length,
- memory32->write_protect);
+ memory32->write_protect, 0);
break;
case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
fixed_memory32 = &res->data.fixed_memory32;
pnpacpi_parse_allocated_memresource(dev,
fixed_memory32->address,
fixed_memory32->address_length,
- fixed_memory32->write_protect);
+ fixed_memory32->write_protect, 0);
break;
case ACPI_RESOURCE_TYPE_ADDRESS16:
case ACPI_RESOURCE_TYPE_ADDRESS32:
unsigned long pnp_resource_type(struct resource *res)
{
return res->flags & (IORESOURCE_IO | IORESOURCE_MEM |
- IORESOURCE_IRQ | IORESOURCE_DMA);
+ IORESOURCE_IRQ | IORESOURCE_DMA |
+ IORESOURCE_BUS);
}
struct resource *pnp_get_resource(struct pnp_dev *dev,
return pnp_res;
}
+struct pnp_resource *pnp_add_bus_resource(struct pnp_dev *dev,
+ resource_size_t start,
+ resource_size_t end)
+{
+ struct pnp_resource *pnp_res;
+ struct resource *res;
+
+ pnp_res = pnp_new_resource(dev);
+ if (!pnp_res) {
+ dev_err(&dev->dev, "can't add resource for BUS %#llx-%#llx\n",
+ (unsigned long long) start,
+ (unsigned long long) end);
+ return NULL;
+ }
+
+ res = &pnp_res->res;
+ res->flags = IORESOURCE_BUS;
+ res->start = start;
+ res->end = end;
+
+ pnp_dbg(&dev->dev, " add %pr\n", res);
+ return pnp_res;
+}
+
/*
* Determine whether the specified resource is a possible configuration
* for this device.
return "irq";
case IORESOURCE_DMA:
return "dma";
+ case IORESOURCE_BUS:
+ return "bus";
}
- return NULL;
+ return "unknown";
}
void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc)
POWER_SUPPLY_ATTR(present),
POWER_SUPPLY_ATTR(online),
POWER_SUPPLY_ATTR(technology),
+ POWER_SUPPLY_ATTR(cycle_count),
POWER_SUPPLY_ATTR(voltage_max),
POWER_SUPPLY_ATTR(voltage_min),
POWER_SUPPLY_ATTR(voltage_max_design),
#endif /* CONFIG_CPU_FREQ */
-/* in processor_pdc.c */
+/* in processor_core.c */
void acpi_processor_set_pdc(acpi_handle handle);
+#ifdef CONFIG_SMP
+int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
+#else
+static inline int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id)
+{
+ return -1;
+}
+#endif
/* in processor_throttling.c */
int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
*/
#define IORESOURCE_BITS 0x000000ff /* Bus-specific bits */
-#define IORESOURCE_TYPE_BITS 0x00000f00 /* Resource type */
+#define IORESOURCE_TYPE_BITS 0x00001f00 /* Resource type */
#define IORESOURCE_IO 0x00000100
#define IORESOURCE_MEM 0x00000200
#define IORESOURCE_IRQ 0x00000400
#define IORESOURCE_DMA 0x00000800
+#define IORESOURCE_BUS 0x00001000
-#define IORESOURCE_PREFETCH 0x00001000 /* No side effects */
-#define IORESOURCE_READONLY 0x00002000
-#define IORESOURCE_CACHEABLE 0x00004000
-#define IORESOURCE_RANGELENGTH 0x00008000
-#define IORESOURCE_SHADOWABLE 0x00010000
+#define IORESOURCE_PREFETCH 0x00002000 /* No side effects */
+#define IORESOURCE_READONLY 0x00004000
+#define IORESOURCE_CACHEABLE 0x00008000
+#define IORESOURCE_RANGELENGTH 0x00010000
+#define IORESOURCE_SHADOWABLE 0x00020000
-#define IORESOURCE_SIZEALIGN 0x00020000 /* size indicates alignment */
-#define IORESOURCE_STARTALIGN 0x00040000 /* start field is alignment */
+#define IORESOURCE_SIZEALIGN 0x00040000 /* size indicates alignment */
+#define IORESOURCE_STARTALIGN 0x00080000 /* start field is alignment */
#define IORESOURCE_MEM_64 0x00100000
+#define IORESOURCE_WINDOW 0x00200000 /* forwarded by bridge */
#define IORESOURCE_EXCLUSIVE 0x08000000 /* Userland may not map this resource */
#define IORESOURCE_DISABLED 0x10000000
POWER_SUPPLY_PROP_PRESENT,
POWER_SUPPLY_PROP_ONLINE,
POWER_SUPPLY_PROP_TECHNOLOGY,
+ POWER_SUPPLY_PROP_CYCLE_COUNT,
POWER_SUPPLY_PROP_VOLTAGE_MAX,
POWER_SUPPLY_PROP_VOLTAGE_MIN,
POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
.precision = -1,
.flags = SPECIAL | SMALL | ZEROPAD,
};
+ static const struct printf_spec bus_spec = {
+ .base = 16,
+ .field_width = 2,
+ .precision = -1,
+ .flags = SMALL | ZEROPAD,
+ };
static const struct printf_spec dec_spec = {
.base = 10,
.precision = -1,
* 64-bit res (sizeof==8): 20 chars in dec, 18 in hex ("0x" + 16) */
#define RSRC_BUF_SIZE ((2 * sizeof(resource_size_t)) + 4)
#define FLAG_BUF_SIZE (2 * sizeof(res->flags))
-#define DECODED_BUF_SIZE sizeof("[mem - 64bit pref disabled]")
+#define DECODED_BUF_SIZE sizeof("[mem - 64bit pref window disabled]")
#define RAW_BUF_SIZE sizeof("[mem - flags 0x]")
char sym[max(2*RSRC_BUF_SIZE + DECODED_BUF_SIZE,
2*RSRC_BUF_SIZE + FLAG_BUF_SIZE + RAW_BUF_SIZE)];
} else if (res->flags & IORESOURCE_DMA) {
p = string(p, pend, "dma ", str_spec);
specp = &dec_spec;
+ } else if (res->flags & IORESOURCE_BUS) {
+ p = string(p, pend, "bus ", str_spec);
+ specp = &bus_spec;
} else {
p = string(p, pend, "??? ", str_spec);
specp = &mem_spec;
p = string(p, pend, " 64bit", str_spec);
if (res->flags & IORESOURCE_PREFETCH)
p = string(p, pend, " pref", str_spec);
+ if (res->flags & IORESOURCE_WINDOW)
+ p = string(p, pend, " window", str_spec);
if (res->flags & IORESOURCE_DISABLED)
p = string(p, pend, " disabled", str_spec);
} else {
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff