diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/acpi/ac.c | 4 | ||||
| -rw-r--r-- | drivers/acpi/acpi_memhotplug.c | 43 | ||||
| -rw-r--r-- | drivers/acpi/acpi_pad.c | 11 | ||||
| -rw-r--r-- | drivers/acpi/acpica/hwsleep.c | 22 | ||||
| -rw-r--r-- | drivers/acpi/acpica/nspredef.c | 2 | ||||
| -rw-r--r-- | drivers/acpi/apei/apei-base.c | 22 | ||||
| -rw-r--r-- | drivers/acpi/apei/apei-internal.h | 9 | ||||
| -rw-r--r-- | drivers/acpi/apei/ghes.c | 6 | ||||
| -rw-r--r-- | drivers/acpi/battery.c | 19 | ||||
| -rw-r--r-- | drivers/acpi/bgrt.c | 1 | ||||
| -rw-r--r-- | drivers/acpi/bus.c | 92 | ||||
| -rw-r--r-- | drivers/acpi/container.c | 43 | ||||
| -rw-r--r-- | drivers/acpi/glue.c | 2 | ||||
| -rw-r--r-- | drivers/acpi/pci_link.c | 12 | ||||
| -rw-r--r-- | drivers/acpi/power.c | 2 | ||||
| -rw-r--r-- | drivers/acpi/processor_core.c | 6 | ||||
| -rw-r--r-- | drivers/acpi/processor_driver.c | 28 | ||||
| -rw-r--r-- | drivers/acpi/processor_idle.c | 32 | ||||
| -rw-r--r-- | drivers/acpi/processor_perflib.c | 30 | ||||
| -rw-r--r-- | drivers/acpi/scan.c | 59 | ||||
| -rw-r--r-- | drivers/acpi/sleep.c | 63 | ||||
| -rw-r--r-- | drivers/acpi/sysfs.c | 4 | ||||
| -rw-r--r-- | drivers/acpi/thermal.c | 10 | ||||
| -rw-r--r-- | drivers/acpi/utils.c | 72 | ||||
| -rw-r--r-- | drivers/acpi/video.c | 35 |
26 files changed, 474 insertions, 157 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 47768ff87343..80998958cf45 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -208,7 +208,7 @@ config ACPI_IPMI config ACPI_HOTPLUG_CPU bool - depends on ACPI_PROCESSOR && HOTPLUG_CPU + depends on EXPERIMENTAL && ACPI_PROCESSOR && HOTPLUG_CPU select ACPI_CONTAINER default y diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 6512b20aeccd..d1fcbc0f6cbc 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -292,7 +292,9 @@ static int acpi_ac_add(struct acpi_device *device) ac->charger.properties = ac_props; ac->charger.num_properties = ARRAY_SIZE(ac_props); ac->charger.get_property = get_ac_property; - power_supply_register(&ac->device->dev, &ac->charger); + result = power_supply_register(&ac->device->dev, &ac->charger); + if (result) + goto end; printk(KERN_INFO PREFIX "%s [%s] (%s)\n", acpi_device_name(device), acpi_device_bid(device), diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index d98571385656..24c807f96636 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -341,7 +341,7 @@ static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data) { struct acpi_memory_device *mem_device; struct acpi_device *device; - + u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; /* default */ switch (event) { case ACPI_NOTIFY_BUS_CHECK: @@ -354,15 +354,20 @@ static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data) "\nReceived DEVICE CHECK notification for device\n")); if (acpi_memory_get_device(handle, &mem_device)) { printk(KERN_ERR PREFIX "Cannot find driver data\n"); - return; + break; } - if (!acpi_memory_check_device(mem_device)) { - if (acpi_memory_enable_device(mem_device)) - printk(KERN_ERR PREFIX - "Cannot enable memory device\n"); + if (acpi_memory_check_device(mem_device)) + break; + + if (acpi_memory_enable_device(mem_device)) { + printk(KERN_ERR PREFIX "Cannot enable memory device\n"); + break; } + + ost_code = ACPI_OST_SC_SUCCESS; break; + case ACPI_NOTIFY_EJECT_REQUEST: ACPI_DEBUG_PRINT((ACPI_DB_INFO, "\nReceived EJECT REQUEST notification for device\n")); @@ -383,19 +388,35 @@ static void acpi_memory_device_notify(acpi_handle handle, u32 event, void *data) * TBD: Can also be disabled by Callback registration * with generic sysfs driver */ - if (acpi_memory_disable_device(mem_device)) - printk(KERN_ERR PREFIX - "Disable memory device\n"); + if (acpi_memory_disable_device(mem_device)) { + printk(KERN_ERR PREFIX "Disable memory device\n"); + /* + * If _EJ0 was called but failed, _OST is not + * necessary. + */ + if (mem_device->state == MEMORY_INVALID_STATE) + return; + + break; + } + /* * TBD: Invoke acpi_bus_remove to cleanup data structures */ - break; + + /* _EJ0 succeeded; _OST is not necessary */ + return; + default: ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Unsupported event [0x%x]\n", event)); - break; + + /* non-hotplug event; possibly handled by other handler */ + return; } + /* Inform firmware that the hotplug operation has completed */ + (void) acpi_evaluate_hotplug_ost(handle, event, ost_code, NULL); return; } diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c index a43fa1a57d57..af4aad6ee2eb 100644 --- a/drivers/acpi/acpi_pad.c +++ b/drivers/acpi/acpi_pad.c @@ -36,6 +36,7 @@ #define ACPI_PROCESSOR_AGGREGATOR_DEVICE_NAME "Processor Aggregator" #define ACPI_PROCESSOR_AGGREGATOR_NOTIFY 0x80 static DEFINE_MUTEX(isolated_cpus_lock); +static DEFINE_MUTEX(round_robin_lock); static unsigned long power_saving_mwait_eax; @@ -107,7 +108,7 @@ static void round_robin_cpu(unsigned int tsk_index) if (!alloc_cpumask_var(&tmp, GFP_KERNEL)) return; - mutex_lock(&isolated_cpus_lock); + mutex_lock(&round_robin_lock); cpumask_clear(tmp); for_each_cpu(cpu, pad_busy_cpus) cpumask_or(tmp, tmp, topology_thread_cpumask(cpu)); @@ -116,7 +117,7 @@ static void round_robin_cpu(unsigned int tsk_index) if (cpumask_empty(tmp)) cpumask_andnot(tmp, cpu_online_mask, pad_busy_cpus); if (cpumask_empty(tmp)) { - mutex_unlock(&isolated_cpus_lock); + mutex_unlock(&round_robin_lock); return; } for_each_cpu(cpu, tmp) { @@ -131,7 +132,7 @@ static void round_robin_cpu(unsigned int tsk_index) tsk_in_cpu[tsk_index] = preferred_cpu; cpumask_set_cpu(preferred_cpu, pad_busy_cpus); cpu_weight[preferred_cpu]++; - mutex_unlock(&isolated_cpus_lock); + mutex_unlock(&round_robin_lock); set_cpus_allowed_ptr(current, cpumask_of(preferred_cpu)); } @@ -144,7 +145,7 @@ static void exit_round_robin(unsigned int tsk_index) } static unsigned int idle_pct = 5; /* percentage */ -static unsigned int round_robin_time = 10; /* second */ +static unsigned int round_robin_time = 1; /* second */ static int power_saving_thread(void *data) { struct sched_param param = {.sched_priority = 1}; @@ -234,7 +235,7 @@ static int create_power_saving_task(void) ps_tsks[ps_tsk_num] = kthread_run(power_saving_thread, (void *)(unsigned long)ps_tsk_num, - "power_saving/%d", ps_tsk_num); + "acpi_pad/%d", ps_tsk_num); rc = IS_ERR(ps_tsks[ps_tsk_num]) ? PTR_ERR(ps_tsks[ps_tsk_num]) : 0; if (!rc) ps_tsk_num++; diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c index 8049fbe9d5de..9960fe9ef533 100644 --- a/drivers/acpi/acpica/hwsleep.c +++ b/drivers/acpi/acpica/hwsleep.c @@ -95,18 +95,6 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state, u8 flags) return_ACPI_STATUS(status); } - if (sleep_state != ACPI_STATE_S5) { - /* - * Disable BM arbitration. This feature is contained within an - * optional register (PM2 Control), so ignore a BAD_ADDRESS - * exception. - */ - status = acpi_write_bit_register(ACPI_BITREG_ARB_DISABLE, 1); - if (ACPI_FAILURE(status) && (status != AE_BAD_ADDRESS)) { - return_ACPI_STATUS(status); - } - } - /* * 1) Disable/Clear all GPEs * 2) Enable all wakeup GPEs @@ -364,16 +352,6 @@ acpi_status acpi_hw_legacy_wake(u8 sleep_state, u8 flags) [ACPI_EVENT_POWER_BUTTON]. status_register_id, ACPI_CLEAR_STATUS); - /* - * Enable BM arbitration. This feature is contained within an - * optional register (PM2 Control), so ignore a BAD_ADDRESS - * exception. - */ - status = acpi_write_bit_register(ACPI_BITREG_ARB_DISABLE, 0); - if (ACPI_FAILURE(status) && (status != AE_BAD_ADDRESS)) { - return_ACPI_STATUS(status); - } - acpi_hw_execute_sleep_method(METHOD_PATHNAME__SST, ACPI_SST_WORKING); return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c index 10b85aecd16e..2419f417ea33 100644 --- a/drivers/acpi/acpica/nspredef.c +++ b/drivers/acpi/acpica/nspredef.c @@ -638,7 +638,7 @@ acpi_ns_check_package(struct acpi_predefined_data *data, /* Create the new outer package and populate it */ status = - acpi_ns_wrap_with_package(data, *elements, + acpi_ns_wrap_with_package(data, return_object, return_object_ptr); if (ACPI_FAILURE(status)) { return (status); diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c index 5577762daee1..00a783661d0b 100644 --- a/drivers/acpi/apei/apei-base.c +++ b/drivers/acpi/apei/apei-base.c @@ -243,7 +243,7 @@ static int pre_map_gar_callback(struct apei_exec_context *ctx, u8 ins = entry->instruction; if (ctx->ins_table[ins].flags & APEI_EXEC_INS_ACCESS_REGISTER) - return acpi_os_map_generic_address(&entry->register_region); + return apei_map_generic_address(&entry->register_region); return 0; } @@ -276,7 +276,7 @@ static int post_unmap_gar_callback(struct apei_exec_context *ctx, u8 ins = entry->instruction; if (ctx->ins_table[ins].flags & APEI_EXEC_INS_ACCESS_REGISTER) - acpi_os_unmap_generic_address(&entry->register_region); + apei_unmap_generic_address(&entry->register_region); return 0; } @@ -586,6 +586,11 @@ static int apei_check_gar(struct acpi_generic_address *reg, u64 *paddr, } *access_bit_width = 1UL << (access_size_code + 2); + /* Fixup common BIOS bug */ + if (bit_width == 32 && bit_offset == 0 && (*paddr & 0x03) == 0 && + *access_bit_width < 32) + *access_bit_width = 32; + if ((bit_width + bit_offset) > *access_bit_width) { pr_warning(FW_BUG APEI_PFX "Invalid bit width + offset in GAR [0x%llx/%u/%u/%u/%u]\n", @@ -606,6 +611,19 @@ static int apei_check_gar(struct acpi_generic_address *reg, u64 *paddr, return 0; } +int apei_map_generic_address(struct acpi_generic_address *reg) +{ + int rc; + u32 access_bit_width; + u64 address; + + rc = apei_check_gar(reg, &address, &access_bit_width); + if (rc) + return rc; + return acpi_os_map_generic_address(reg); +} +EXPORT_SYMBOL_GPL(apei_map_generic_address); + /* read GAR in interrupt (including NMI) or process context */ int apei_read(u64 *val, struct acpi_generic_address *reg) { diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h index cca240a33038..f220d642136e 100644 --- a/drivers/acpi/apei/apei-internal.h +++ b/drivers/acpi/apei/apei-internal.h @@ -7,6 +7,8 @@ #define APEI_INTERNAL_H #include <linux/cper.h> +#include <linux/acpi.h> +#include <linux/acpi_io.h> struct apei_exec_context; @@ -68,6 +70,13 @@ static inline int apei_exec_run_optional(struct apei_exec_context *ctx, u8 actio /* IP has been set in instruction function */ #define APEI_EXEC_SET_IP 1 +int apei_map_generic_address(struct acpi_generic_address *reg); + +static inline void apei_unmap_generic_address(struct acpi_generic_address *reg) +{ + acpi_os_unmap_generic_address(reg); +} + int apei_read(u64 *val, struct acpi_generic_address *reg); int apei_write(u64 val, struct acpi_generic_address *reg); diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index 9b3cac0abecc..1599566ed1fe 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -301,7 +301,7 @@ static struct ghes *ghes_new(struct acpi_hest_generic *generic) if (!ghes) return ERR_PTR(-ENOMEM); ghes->generic = generic; - rc = acpi_os_map_generic_address(&generic->error_status_address); + rc = apei_map_generic_address(&generic->error_status_address); if (rc) goto err_free; error_block_length = generic->error_block_length; @@ -321,7 +321,7 @@ static struct ghes *ghes_new(struct acpi_hest_generic *generic) return ghes; err_unmap: - acpi_os_unmap_generic_address(&generic->error_status_address); + apei_unmap_generic_address(&generic->error_status_address); err_free: kfree(ghes); return ERR_PTR(rc); @@ -330,7 +330,7 @@ err_free: static void ghes_fini(struct ghes *ghes) { kfree(ghes->estatus); - acpi_os_unmap_generic_address(&ghes->generic->error_status_address); + apei_unmap_generic_address(&ghes->generic->error_status_address); } enum { diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 86933ca8b472..5662d64e6733 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -250,6 +250,13 @@ static int acpi_battery_get_property(struct power_supply *psy, else val->intval = battery->capacity_now * 1000; break; + case POWER_SUPPLY_PROP_CAPACITY: + if (battery->capacity_now && battery->full_charge_capacity) + val->intval = battery->capacity_now * 100/ + battery->full_charge_capacity; + else + val->intval = 0; + break; case POWER_SUPPLY_PROP_MODEL_NAME: val->strval = battery->model_number; break; @@ -276,6 +283,7 @@ static enum power_supply_property charge_battery_props[] = { POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, POWER_SUPPLY_PROP_CHARGE_FULL, POWER_SUPPLY_PROP_CHARGE_NOW, + POWER_SUPPLY_PROP_CAPACITY, POWER_SUPPLY_PROP_MODEL_NAME, POWER_SUPPLY_PROP_MANUFACTURER, POWER_SUPPLY_PROP_SERIAL_NUMBER, @@ -292,6 +300,7 @@ static enum power_supply_property energy_battery_props[] = { POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, POWER_SUPPLY_PROP_ENERGY_FULL, POWER_SUPPLY_PROP_ENERGY_NOW, + POWER_SUPPLY_PROP_CAPACITY, POWER_SUPPLY_PROP_MODEL_NAME, POWER_SUPPLY_PROP_MANUFACTURER, POWER_SUPPLY_PROP_SERIAL_NUMBER, @@ -643,11 +652,19 @@ static int acpi_battery_update(struct acpi_battery *battery) static void acpi_battery_refresh(struct acpi_battery *battery) { + int power_unit; + if (!battery->bat.dev) return; + power_unit = battery->power_unit; + acpi_battery_get_info(battery); - /* The battery may have changed its reporting units. */ + + if (power_unit == battery->power_unit) + return; + + /* The battery has changed its reporting units. */ sysfs_remove_battery(battery); sysfs_add_battery(battery); } diff --git a/drivers/acpi/bgrt.c b/drivers/acpi/bgrt.c index 8cf6c46e99fb..6680df36b963 100644 --- a/drivers/acpi/bgrt.c +++ b/drivers/acpi/bgrt.c @@ -11,6 +11,7 @@ #include <linux/init.h> #include <linux/device.h> #include <linux/sysfs.h> +#include <linux/io.h> #include <acpi/acpi.h> #include <acpi/acpi_bus.h> diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 3188da3df8da..9628652e080c 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -182,41 +182,66 @@ EXPORT_SYMBOL(acpi_bus_get_private_data); Power Management -------------------------------------------------------------------------- */ +static const char *state_string(int state) +{ + switch (state) { + case ACPI_STATE_D0: + return "D0"; + case ACPI_STATE_D1: + return "D1"; + case ACPI_STATE_D2: + return "D2"; + case ACPI_STATE_D3_HOT: + return "D3hot"; + case ACPI_STATE_D3_COLD: + return "D3"; + default: + return "(unknown)"; + } +} + static int __acpi_bus_get_power(struct acpi_device *device, int *state) { - int result = 0; - acpi_status status = 0; - unsigned long long psc = 0; + int result = ACPI_STATE_UNKNOWN; if (!device || !state) return -EINVAL; - *state = ACPI_STATE_UNKNOWN; - - if (device->flags.power_manageable) { - /* - * Get the device's power state either directly (via _PSC) or - * indirectly (via power resources). - */ - if (device->power.flags.power_resources) { - result = acpi_power_get_inferred_state(device, state); - 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; - *state = (int)psc; - } - } else { + if (!device->flags.power_manageable) { /* TBD: Non-recursive algorithm for walking up hierarchy. */ *state = device->parent ? device->parent->power.state : ACPI_STATE_D0; + goto out; + } + + /* + * Get the device's power state either directly (via _PSC) or + * indirectly (via power resources). + */ + if (device->power.flags.explicit_get) { + unsigned long long psc; + acpi_status status = acpi_evaluate_integer(device->handle, + "_PSC", NULL, &psc); + if (ACPI_FAILURE(status)) + return -ENODEV; + + result = psc; + } + /* The test below covers ACPI_STATE_UNKNOWN too. */ + if (result <= ACPI_STATE_D2) { + ; /* Do nothing. */ + } else if (device->power.flags.power_resources) { + int error = acpi_power_get_inferred_state(device, &result); + if (error) + return error; + } else if (result == ACPI_STATE_D3_HOT) { + result = ACPI_STATE_D3; } + *state = result; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] power state is D%d\n", - device->pnp.bus_id, *state)); + out: + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] power state is %s\n", + device->pnp.bus_id, state_string(*state))); return 0; } @@ -234,13 +259,14 @@ static int __acpi_bus_set_power(struct acpi_device *device, int state) /* Make sure this is a valid target state */ if (state == device->power.state) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n", - state)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at %s\n", + state_string(state))); return 0; } if (!device->power.states[state].flags.valid) { - printk(KERN_WARNING PREFIX "Device does not support D%d\n", state); + printk(KERN_WARNING PREFIX "Device does not support %s\n", + state_string(state)); return -ENODEV; } if (device->parent && (state < device->parent->power.state)) { @@ -294,13 +320,13 @@ static int __acpi_bus_set_power(struct acpi_device *device, int state) end: if (result) printk(KERN_WARNING PREFIX - "Device [%s] failed to transition to D%d\n", - device->pnp.bus_id, state); + "Device [%s] failed to transition to %s\n", + device->pnp.bus_id, state_string(state)); else { device->power.state = state; ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Device [%s] transitioned to D%d\n", - device->pnp.bus_id, state)); + "Device [%s] transitioned to %s\n", + device->pnp.bus_id, state_string(state))); } return result; @@ -548,6 +574,10 @@ static void acpi_bus_osc_support(void) capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_PPC_OST_SUPPORT; #endif +#ifdef ACPI_HOTPLUG_OST + capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_HOTPLUG_OST_SUPPORT; +#endif + if (!ghes_disable) capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_APEI_SUPPORT; if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle))) diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c index 45cd03b4630e..1f9f7d7d7bc5 100644 --- a/drivers/acpi/container.c +++ b/drivers/acpi/container.c @@ -158,9 +158,7 @@ static void container_notify_cb(acpi_handle handle, u32 type, void *context) int result; int present; acpi_status status; - - - present = is_device_present(handle); + u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; /* default */ switch (type) { case ACPI_NOTIFY_BUS_CHECK: @@ -169,32 +167,47 @@ static void container_notify_cb(acpi_handle handle, u32 type, void *context) printk(KERN_WARNING "Container driver received %s event\n", (type == ACPI_NOTIFY_BUS_CHECK) ? "ACPI_NOTIFY_BUS_CHECK" : "ACPI_NOTIFY_DEVICE_CHECK"); + + present = is_device_present(handle); status = acpi_bus_get_device(handle, &device); - if (present) { - if (ACPI_FAILURE(status) || !device) { - result = container_device_add(&device, handle); - if (!result) - kobject_uevent(&device->dev.kobj, - KOBJ_ONLINE); - else - printk(KERN_WARNING - "Failed to add container\n"); - } - } else { + if (!present) { if (ACPI_SUCCESS(status)) { /* device exist and this is a remove request */ + device->flags.eject_pending = 1; kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE); + return; } + break; + } + + if (!ACPI_FAILURE(status) || device) + break; + + result = container_device_add(&device, handle); + if (result) { + printk(KERN_WARNING "Failed to add container\n"); + break; } + + kobject_uevent(&device->dev.kobj, KOBJ_ONLINE); + ost_code = ACPI_OST_SC_SUCCESS; break; + case ACPI_NOTIFY_EJECT_REQUEST: if (!acpi_bus_get_device(handle, &device) && device) { + device->flags.eject_pending = 1; kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE); + return; } break; + default: - break; + /* non-hotplug event; possibly handled by other handler */ + return; } + + /* Inform firmware that the hotplug operation has completed */ + (void) acpi_evaluate_hotplug_ost(handle, type, ost_code, NULL); return; } diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index 29a4a5c8ee00..1564e0927c21 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -69,6 +69,7 @@ static struct acpi_bus_type *acpi_get_bus_type(struct bus_type *type) up_read(&bus_type_sem); return ret; } +EXPORT_SYMBOL_GPL(register_acpi_bus_type); static int acpi_find_bridge_device(struct device *dev, acpi_handle * handle) { @@ -85,6 +86,7 @@ static int acpi_find_bridge_device(struct device *dev, acpi_handle * handle) up_read(&bus_type_sem); return ret; } +EXPORT_SYMBOL_GPL(unregister_acpi_bus_type); /* Get device's handler per its address under its parent */ struct acpi_find_child { diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index 4a29763b8eb4..a12808259dfb 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -720,21 +720,21 @@ static int acpi_pci_link_add(struct acpi_device *device) acpi_device_bid(device)); for (i = 0; i < link->irq.possible_count; i++) { if (link->irq.active == link->irq.possible[i]) { - printk(" *%d", link->irq.possible[i]); + printk(KERN_CONT " *%d", link->irq.possible[i]); found = 1; } else - printk(" %d", link->irq.possible[i]); + printk(KERN_CONT " %d", link->irq.possible[i]); } - printk(")"); + printk(KERN_CONT ")"); if (!found) - printk(" *%d", link->irq.active); + printk(KERN_CONT " *%d", link->irq.active); if (!link->device->status.enabled) - printk(", disabled."); + printk(KERN_CONT ", disabled."); - printk("\n"); + printk(KERN_CONT "\n"); list_add_tail(&link->list, &acpi_link_list); diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index 0500f719f63e..dd6d6a3c6780 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -631,7 +631,7 @@ int acpi_power_get_inferred_state(struct acpi_device *device, int *state) * We know a device's inferred power state when all the resources * required for a given D-state are 'on'. */ - for (i = ACPI_STATE_D0; i < ACPI_STATE_D3_HOT; i++) { + for (i = ACPI_STATE_D0; i <= ACPI_STATE_D3_HOT; i++) { list = &device->power.states[i].resources; if (list->count < 1) continue; diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index c850de4c9a14..eff722278ff5 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -189,10 +189,12 @@ int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id) * Processor (CPU3, 0x03, 0x00000410, 0x06) {} * } * - * Ignores apic_id and always return 0 for CPU0's handle. + * Ignores apic_id and always returns 0 for the processor + * handle with acpi id 0 if nr_cpu_ids is 1. + * This should be the case if SMP tables are not found. * Return -1 for other CPU's handle. */ - if (acpi_id == 0) + if (nr_cpu_ids <= 1 && acpi_id == 0) return acpi_id; else return apic_id; diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 0734086537b8..971c45474703 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -701,9 +701,9 @@ static void acpi_processor_hotplug_notify(acpi_handle handle, { struct acpi_processor *pr; struct acpi_device *device = NULL; + u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; /* default */ int result; - switch (event) { case ACPI_NOTIFY_BUS_CHECK: case ACPI_NOTIFY_DEVICE_CHECK: @@ -715,14 +715,18 @@ static void acpi_processor_hotplug_notify(acpi_handle handle, 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"); + if (!acpi_bus_get_device(handle, &device)) + break; + + result = acpi_processor_device_add(handle, &device); + if (result) { + printk(KERN_ERR PREFIX "Unable to add the device\n"); break; } + + ost_code = ACPI_OST_SC_SUCCESS; break; + case ACPI_NOTIFY_EJECT_REQUEST: ACPI_DEBUG_PRINT((ACPI_DB_INFO, "received ACPI_NOTIFY_EJECT_REQUEST\n")); @@ -736,15 +740,23 @@ static void acpi_processor_hotplug_notify(acpi_handle handle, if (!pr) { printk(KERN_ERR PREFIX "Driver data is NULL, dropping EJECT\n"); - return; + break; } + + /* REVISIT: update when eject is supported */ + ost_code = ACPI_OST_SC_EJECT_NOT_SUPPORTED; break; + default: ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Unsupported event [0x%x]\n", event)); - break; + + /* non-hotplug event; possibly handled by other handler */ + return; } + /* Inform firmware that the hotplug operation has completed */ + (void) acpi_evaluate_hotplug_ost(handle, event, ost_code, NULL); return; } diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 50faa93bb97b..9837c9c4f009 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -224,6 +224,7 @@ static void lapic_timer_state_broadcast(struct acpi_processor *pr, /* * Suspend / resume control */ +static int acpi_idle_suspend; static u32 saved_bm_rld; static void acpi_idle_bm_rld_save(void) @@ -242,13 +243,21 @@ static void acpi_idle_bm_rld_restore(void) int acpi_processor_suspend(struct acpi_device * device, pm_message_t state) { + if (acpi_idle_suspend == 1) + return 0; + acpi_idle_bm_rld_save(); + acpi_idle_suspend = 1; return 0; } int acpi_processor_resume(struct acpi_device * device) { + if (acpi_idle_suspend == 0) + return 0; + acpi_idle_bm_rld_restore(); + acpi_idle_suspend = 0; return 0; } @@ -754,6 +763,12 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev, local_irq_disable(); + if (acpi_idle_suspend) { + local_irq_enable(); + cpu_relax(); + return -EBUSY; + } + lapic_timer_state_broadcast(pr, cx, 1); kt1 = ktime_get_real(); acpi_idle_do_entry(cx); @@ -823,6 +838,12 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, local_irq_disable(); + if (acpi_idle_suspend) { + local_irq_enable(); + cpu_relax(); + return -EBUSY; + } + if (cx->entry_method != ACPI_CSTATE_FFH) { current_thread_info()->status &= ~TS_POLLING; /* @@ -907,14 +928,21 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, drv, drv->safe_state_index); } else { local_irq_disable(); - acpi_safe_halt(); + if (!acpi_idle_suspend) + acpi_safe_halt(); local_irq_enable(); - return -EINVAL; + return -EBUSY; } } local_irq_disable(); + if (acpi_idle_suspend) { + local_irq_enable(); + cpu_relax(); + return -EBUSY; + } + if (cx->entry_method != ACPI_CSTATE_FFH) { current_thread_info()->status &= ~TS_POLLING; /* diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index 0af48a8554cd..a093dc163a42 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -333,6 +333,7 @@ static int acpi_processor_get_performance_states(struct acpi_processor *pr) struct acpi_buffer state = { 0, NULL }; union acpi_object *pss = NULL; int i; + int last_invalid = -1; status = acpi_evaluate_object(pr->handle, "_PSS", NULL, &buffer); @@ -394,14 +395,33 @@ static int acpi_processor_get_performance_states(struct acpi_processor *pr) ((u32)(px->core_frequency * 1000) != (px->core_frequency * 1000))) { printk(KERN_ERR FW_BUG PREFIX - "Invalid BIOS _PSS frequency: 0x%llx MHz\n", - px->core_frequency); - result = -EFAULT; - kfree(pr->performance->states); - goto end; + "Invalid BIOS _PSS frequency found for processor %d: 0x%llx MHz\n", + pr->id, px->core_frequency); + if (last_invalid == -1) + last_invalid = i; + } else { + if (last_invalid != -1) { + /* + * Copy this valid entry over last_invalid entry + */ + memcpy(&(pr->performance->states[last_invalid]), + px, sizeof(struct acpi_processor_px)); + ++last_invalid; + } } } + if (last_invalid == 0) { + printk(KERN_ERR FW_BUG PREFIX + "No valid BIOS _PSS frequency found for processor %d\n", pr->id); + result = -EFAULT; + kfree(pr->performance->states); + pr->performance->states = NULL; + } + + if (last_invalid > 0) + pr->performance->state_count = last_invalid; + end: kfree(buffer.pointer); diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 85cbfdccc97c..148556a8f0f2 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -83,19 +83,29 @@ acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, cha } static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL); -static void acpi_bus_hot_remove_device(void *context) +/** + * acpi_bus_hot_remove_device: hot-remove a device and its children + * @context: struct acpi_eject_event pointer (freed in this func) + * + * Hot-remove a device and its children. This function frees up the + * memory space passed by arg context, so that the caller may call + * this function asynchronously through acpi_os_hotplug_execute(). + */ +void acpi_bus_hot_remove_device(void *context) { + struct acpi_eject_event *ej_event = (struct acpi_eject_event *) context; struct acpi_device *device; - acpi_handle handle = context; + acpi_handle handle = ej_event->handle; struct acpi_object_list arg_list; union acpi_object arg; acpi_status status = AE_OK; + u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; /* default */ if (acpi_bus_get_device(handle, &device)) - return; + goto err_out; if (!device) - return; + goto err_out; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Hot-removing device %s...\n", dev_name(&device->dev))); @@ -103,7 +113,7 @@ static void acpi_bus_hot_remove_device(void *context) if (acpi_bus_trim(device, 1)) { printk(KERN_ERR PREFIX "Removing device failed\n"); - return; + goto err_out; } /* power off device */ @@ -129,10 +139,21 @@ static void acpi_bus_hot_remove_device(void *context) * TBD: _EJD support. */ status = acpi_evaluate_object(handle, "_EJ0", &arg_list, NULL); - if (ACPI_FAILURE(status)) - printk(KERN_WARNING PREFIX - "Eject device failed\n"); + if (ACPI_FAILURE(status)) { + if (status != AE_NOT_FOUND) + printk(KERN_WARNING PREFIX + "Eject device failed\n"); + goto err_out; + } + + kfree(context); + return; +err_out: + /* Inform firmware the hot-remove operation has completed w/ error */ + (void) acpi_evaluate_hotplug_ost(handle, + ej_event->event, ost_code, NULL); + kfree(context); return; } @@ -144,6 +165,7 @@ acpi_eject_store(struct device *d, struct device_attribute *attr, acpi_status status; acpi_object_type type = 0; struct acpi_device *acpi_device = to_acpi_device(d); + struct acpi_eject_event *ej_event; if ((!count) || (buf[0] != '1')) { return -EINVAL; @@ -160,7 +182,25 @@ acpi_eject_store(struct device *d, struct device_attribute *attr, goto err; } - acpi_os_hotplug_execute(acpi_bus_hot_remove_device, acpi_device->handle); + ej_event = kmalloc(sizeof(*ej_event), GFP_KERNEL); + if (!ej_event) { + ret = -ENOMEM; + goto err; + } + + ej_event->handle = acpi_device->handle; + if (acpi_device->flags.eject_pending) { + /* event originated from ACPI eject notification */ + ej_event->event = ACPI_NOTIFY_EJECT_REQUEST; + acpi_device->flags.eject_pending = 0; + } else { + /* event originated from user */ + ej_event->event = ACPI_OST_EC_OSPM_EJECT; + (void) acpi_evaluate_hotplug_ost(ej_event->handle, + ej_event->event, ACPI_OST_SC_EJECT_IN_PROGRESS, NULL); + } + + acpi_os_hotplug_execute(acpi_bus_hot_remove_device, (void *)ej_event); err: return ret; } @@ -1567,6 +1607,7 @@ static int acpi_bus_scan_fixed(void) ACPI_BUS_TYPE_POWER_BUTTON, ACPI_STA_DEFAULT, &ops); + device_init_wakeup(&device->dev, true); } if ((acpi_gbl_FADT.flags & ACPI_FADT_SLEEP_BUTTON) == 0) { diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 9a14f90d98ec..23a53c013f1e 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -57,6 +57,7 @@ MODULE_PARM_DESC(gts, "Enable evaluation of _GTS on suspend."); MODULE_PARM_DESC(bfs, "Enable evaluation of _BFS on resume".); static u8 sleep_states[ACPI_S_STATE_COUNT]; +static bool pwr_btn_event_pending; static void acpi_sleep_tts_switch(u32 acpi_state) { @@ -93,11 +94,9 @@ static int acpi_sleep_prepare(u32 acpi_state) #ifdef CONFIG_ACPI_SLEEP /* do we have a wakeup address for S2 and S3? */ if (acpi_state == ACPI_STATE_S3) { - if (!acpi_wakeup_address) { + if (!acpi_wakeup_address) return -EFAULT; - } - acpi_set_firmware_waking_vector( - (acpi_physical_address)acpi_wakeup_address); + acpi_set_firmware_waking_vector(acpi_wakeup_address); } ACPI_FLUSH_CPU_CACHE(); @@ -186,6 +185,14 @@ static int acpi_pm_prepare(void) return error; } +static int find_powerf_dev(struct device *dev, void *data) +{ + struct acpi_device *device = to_acpi_device(dev); + const char *hid = acpi_device_hid(device); + + return !strcmp(hid, ACPI_BUTTON_HID_POWERF); +} + /** * acpi_pm_finish - Instruct the platform to leave a sleep state. * @@ -194,6 +201,7 @@ static int acpi_pm_prepare(void) */ static void acpi_pm_finish(void) { + struct device *pwr_btn_dev; u32 acpi_state = acpi_target_sleep_state; acpi_ec_unblock_transactions(); @@ -211,6 +219,23 @@ static void acpi_pm_finish(void) acpi_set_firmware_waking_vector((acpi_physical_address) 0); acpi_target_sleep_state = ACPI_STATE_S0; + + /* If we were woken with the fixed power button, provide a small + * hint to userspace in the form of a wakeup event on the fixed power + * button device (if it can be found). + * + * We delay the event generation til now, as the PM layer requires + * timekeeping to be running before we generate events. */ + if (!pwr_btn_event_pending) + return; + + pwr_btn_event_pending = false; + pwr_btn_dev = bus_find_device(&acpi_bus_type, NULL, NULL, + find_powerf_dev); + if (pwr_btn_dev) { + pm_wakeup_event(pwr_btn_dev, 0); + put_device(pwr_btn_dev); + } } /** @@ -300,9 +325,23 @@ static int acpi_suspend_enter(suspend_state_t pm_state) /* ACPI 3.0 specs (P62) says that it's the responsibility * of the OSPM to clear the status bit [ implying that the * POWER_BUTTON event should not reach userspace ] + * + * However, we do generate a small hint for userspace in the form of + * a wakeup event. We flag this condition for now and generate the + * event later, as we're currently too early in resume to be able to + * generate wakeup events. */ - if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3)) - acpi_clear_event(ACPI_EVENT_POWER_BUTTON); + if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3)) { + acpi_event_status pwr_btn_status; + + acpi_get_event_status(ACPI_EVENT_POWER_BUTTON, &pwr_btn_status); + + if (pwr_btn_status & ACPI_EVENT_FLAG_SET) { + acpi_clear_event(ACPI_EVENT_POWER_BUTTON); + /* Flag for later */ + pwr_btn_event_pending = true; + } + } /* * Disable and clear GPE status before interrupt is enabled. Some GPEs @@ -732,8 +771,8 @@ int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p) * can wake the system. _S0W may be valid, too. */ if (acpi_target_sleep_state == ACPI_STATE_S0 || - (device_may_wakeup(dev) && - adev->wakeup.sleep_state <= acpi_target_sleep_state)) { + (device_may_wakeup(dev) && adev->wakeup.flags.valid && + adev->wakeup.sleep_state >= acpi_target_sleep_state)) { acpi_status status; acpi_method[3] = 'W'; @@ -887,7 +926,7 @@ int __init acpi_sleep_init(void) status = acpi_get_sleep_type_data(i, &type_a, &type_b); if (ACPI_SUCCESS(status)) { sleep_states[i] = 1; - printk(" S%d", i); + printk(KERN_CONT " S%d", i); } } @@ -901,7 +940,7 @@ int __init acpi_sleep_init(void) hibernation_set_ops(old_suspend_ordering ? &acpi_hibernation_ops_old : &acpi_hibernation_ops); sleep_states[ACPI_STATE_S4] = 1; - printk(" S4"); + printk(KERN_CONT " S4"); if (!nosigcheck) { acpi_get_table(ACPI_SIG_FACS, 1, (struct acpi_table_header **)&facs); @@ -914,11 +953,11 @@ int __init acpi_sleep_init(void) status = acpi_get_sleep_type_data(ACPI_STATE_S5, &type_a, &type_b); if (ACPI_SUCCESS(status)) { sleep_states[ACPI_STATE_S5] = 1; - printk(" S5"); + printk(KERN_CONT " S5"); pm_power_off_prepare = acpi_power_off_prepare; pm_power_off = acpi_power_off; } - printk(")\n"); + printk(KERN_CONT ")\n"); /* * Register the tts_notifier to reboot notifier list so that the _TTS * object can also be evaluated when the system enters S5. diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index 9f66181c814e..240a24400976 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -173,7 +173,7 @@ static int param_set_trace_state(const char *val, struct kernel_param *kp) { int result = 0; - if (!strncmp(val, "enable", strlen("enable") - 1)) { + if (!strncmp(val, "enable", strlen("enable"))) { result = acpi_debug_trace(trace_method_name, trace_debug_level, trace_debug_layer, 0); if (result) @@ -181,7 +181,7 @@ static int param_set_trace_state(const char *val, struct kernel_param *kp) goto exit; } - if (!strncmp(val, "disable", strlen("disable") - 1)) { + if (!strncmp(val, "disable", strlen("disable"))) { int name = 0; result = acpi_debug_trace((char *)&name, trace_debug_level, trace_debug_layer, 0); diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 7dbebea1ec31..8275e7b06962 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -550,8 +550,6 @@ static int thermal_get_temp(struct thermal_zone_device *thermal, return 0; } -static const char enabled[] = "kernel"; -static const char disabled[] = "user"; static int thermal_get_mode(struct thermal_zone_device *thermal, enum thermal_device_mode *mode) { @@ -588,8 +586,8 @@ static int thermal_set_mode(struct thermal_zone_device *thermal, if (enable != tz->tz_enabled) { tz->tz_enabled = enable; ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "%s ACPI thermal control\n", - tz->tz_enabled ? enabled : disabled)); + "%s kernel ACPI thermal control\n", + tz->tz_enabled ? "Enable" : "Disable")); acpi_thermal_check(tz); } return 0; @@ -845,7 +843,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) if (tz->trips.passive.flags.valid) tz->thermal_zone = - thermal_zone_device_register("acpitz", trips, tz, + thermal_zone_device_register("acpitz", trips, 0, tz, &acpi_thermal_zone_ops, tz->trips.passive.tc1, tz->trips.passive.tc2, @@ -853,7 +851,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) tz->polling_frequency*100); else tz->thermal_zone = - thermal_zone_device_register("acpitz", trips, tz, + thermal_zone_device_register("acpitz", trips, 0, tz, &acpi_thermal_zone_ops, 0, 0, 0, tz->polling_frequency*100); diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index b002a471c5d4..3e87c9c538aa 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -382,3 +382,75 @@ acpi_evaluate_reference(acpi_handle handle, } EXPORT_SYMBOL(acpi_evaluate_reference); + +acpi_status +acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld *pld) +{ + acpi_status status; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + union acpi_object *output; + + status = acpi_evaluate_object(handle, "_PLD", NULL, &buffer); + + if (ACPI_FAILURE(status)) + return status; + + output = buffer.pointer; + + if (!output || output->type != ACPI_TYPE_PACKAGE + || !output->package.count + || output->package.elements[0].type != ACPI_TYPE_BUFFER + || output->package.elements[0].buffer.length > sizeof(*pld)) { + status = AE_TYPE; + goto out; + } + + memcpy(pld, output->package.elements[0].buffer.pointer, + output->package.elements[0].buffer.length); +out: + kfree(buffer.pointer); + return status; +} +EXPORT_SYMBOL(acpi_get_physical_device_location); + +/** + * acpi_evaluate_hotplug_ost: Evaluate _OST for hotplug operations + * @handle: ACPI device handle + * @source_event: source event code + * @status_code: status code + * @status_buf: optional detailed information (NULL if none) + * + * Evaluate _OST for hotplug operations. All ACPI hotplug handlers + * must call this function when evaluating _OST for hotplug operations. + * When the platform does not support _OST, this function has no effect. + */ +acpi_status +acpi_evaluate_hotplug_ost(acpi_handle handle, u32 source_event, + u32 status_code, struct acpi_buffer *status_buf) +{ +#ifdef ACPI_HOTPLUG_OST + union acpi_object params[3] = { + {.type = ACPI_TYPE_INTEGER,}, + {.type = ACPI_TYPE_INTEGER,}, + {.type = ACPI_TYPE_BUFFER,} + }; + struct acpi_object_list arg_list = {3, params}; + acpi_status status; + + params[0].integer.value = source_event; + params[1].integer.value = status_code; + if (status_buf != NULL) { + params[2].buffer.pointer = status_buf->pointer; + params[2].buffer.length = status_buf->length; + } else { + params[2].buffer.pointer = NULL; + params[2].buffer.length = 0; + } + + status = acpi_evaluate_object(handle, "_OST", &arg_list, NULL); + return status; +#else + return AE_OK; +#endif +} +EXPORT_SYMBOL(acpi_evaluate_hotplug_ost); diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 9577b6fa2650..1e0a9e17c31d 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -558,6 +558,8 @@ acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag) union acpi_object arg0 = { ACPI_TYPE_INTEGER }; struct acpi_object_list args = { 1, &arg0 }; + if (!video->cap._DOS) + return 0; if (bios_flag < 0 || bios_flag > 3 || lcd_flag < 0 || lcd_flag > 1) return -EINVAL; @@ -1687,10 +1689,6 @@ static int acpi_video_bus_add(struct acpi_device *device) set_bit(KEY_BRIGHTNESS_ZERO, input->keybit); set_bit(KEY_DISPLAY_OFF, input->keybit); - error = input_register_device(input); - if (error) - goto err_stop_video; - printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s rom: %s post: %s)\n", ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device), video->flags.multihead ? "yes" : "no", @@ -1701,12 +1699,16 @@ static int acpi_video_bus_add(struct acpi_device *device) video->pm_nb.priority = 0; error = register_pm_notifier(&video->pm_nb); if (error) - goto err_unregister_input_dev; + goto err_stop_video; + + error = input_register_device(input); + if (error) + goto err_unregister_pm_notifier; return 0; - err_unregister_input_dev: - input_unregister_device(input); + err_unregister_pm_notifier: + unregister_pm_notifier(&video->pm_nb); err_stop_video: acpi_video_bus_stop_devices(video); err_free_input_dev: @@ -1743,9 +1745,18 @@ static int acpi_video_bus_remove(struct acpi_device *device, int type) return 0; } +static int __init is_i740(struct pci_dev *dev) +{ + if (dev->device == 0x00D1) + return 1; + if (dev->device == 0x7000) + return 1; + return 0; +} + static int __init intel_opregion_present(void) { -#if defined(CONFIG_DRM_I915) || defined(CONFIG_DRM_I915_MODULE) + int opregion = 0; struct pci_dev *dev = NULL; u32 address; @@ -1754,13 +1765,15 @@ static int __init intel_opregion_present(void) continue; if (dev->vendor != PCI_VENDOR_ID_INTEL) continue; + /* We don't want to poke around undefined i740 registers */ + if (is_i740(dev)) + continue; pci_read_config_dword(dev, 0xfc, &address); if (!address) continue; - return 1; + opregion = 1; } -#endif - return 0; + return opregion; } int acpi_video_register(void) |