diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index a326487a3ab52108bc72e74e8b1bd52d14ed9ae8..975f029be25cb991e02ac9d310a15cd767ad2d29 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -163,6 +163,8 @@ and is between 256 and 4096 characters. It is defined in the file acpi_irq_isa= [HW,ACPI] If irq_balance, mark listed IRQs used by ISA Format: ,... + acpi_no_auto_ssdt [HW,ACPI] Disable automatic loading of SSDT + acpi_os_name= [HW,ACPI] Tell ACPI BIOS the name of the OS Format: To spoof as Windows 98: ="Microsoft Windows" @@ -1820,6 +1822,26 @@ and is between 256 and 4096 characters. It is defined in the file thash_entries= [KNL,NET] Set number of hash buckets for TCP connection + thermal.act= [HW,ACPI] + -1: disable all active trip points in all thermal zones + : override all lowest active trip points + + thermal.nocrt= [HW,ACPI] + Set to disable actions on ACPI thermal zone + critical and hot trip points. + + thermal.off= [HW,ACPI] + 1: disable ACPI thermal control + + thermal.psv= [HW,ACPI] + -1: disable all passive trip points + : override all passive trip points to this value + + thermal.tzp= [HW,ACPI] + Specify global default ACPI thermal zone polling rate + : poll all this frequency + 0: no polling (default) + time Show timing data prefixed to each printk message line [deprecated, see 'printk.time'] diff --git a/Documentation/thinkpad-acpi.txt b/Documentation/thinkpad-acpi.txt index 6711fbcf408078644bf237b2f46466b69b7040ff..eb2f5986e1eb911e94c760c5107dccef5b053f76 100644 --- a/Documentation/thinkpad-acpi.txt +++ b/Documentation/thinkpad-acpi.txt @@ -105,10 +105,10 @@ The version of thinkpad-acpi's sysfs interface is exported by the driver as a driver attribute (see below). Sysfs driver attributes are on the driver's sysfs attribute space, -for 2.6.20 this is /sys/bus/platform/drivers/thinkpad-acpi/. +for 2.6.20 this is /sys/bus/platform/drivers/thinkpad_acpi/. Sysfs device attributes are on the driver's sysfs attribute space, -for 2.6.20 this is /sys/devices/platform/thinkpad-acpi/. +for 2.6.20 this is /sys/devices/platform/thinkpad_acpi/. Driver version -------------- diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c index 32d04b083e38f1c592778508909f9239f8f82f5f..705e13a3078136df5bd9700ca344ac643cd145df 100644 --- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c @@ -68,7 +68,8 @@ struct acpi_cpufreq_data { }; static struct acpi_cpufreq_data *drv_data[NR_CPUS]; -static struct acpi_processor_performance *acpi_perf_data[NR_CPUS]; +/* acpi_perf_data is a pointer to percpu data. */ +static struct acpi_processor_performance *acpi_perf_data; static struct cpufreq_driver acpi_cpufreq_driver; @@ -508,24 +509,14 @@ acpi_cpufreq_guess_freq(struct acpi_cpufreq_data *data, unsigned int cpu) * do _PDC and _PSD and find out the processor dependency for the * actual init that will happen later... */ -static int acpi_cpufreq_early_init(void) +static int __init acpi_cpufreq_early_init(void) { - struct acpi_processor_performance *data; - unsigned int i, j; - dprintk("acpi_cpufreq_early_init\n"); - for_each_possible_cpu(i) { - data = kzalloc(sizeof(struct acpi_processor_performance), - GFP_KERNEL); - if (!data) { - for_each_possible_cpu(j) { - kfree(acpi_perf_data[j]); - acpi_perf_data[j] = NULL; - } - return -ENOMEM; - } - acpi_perf_data[i] = data; + acpi_perf_data = alloc_percpu(struct acpi_processor_performance); + if (!acpi_perf_data) { + dprintk("Memory allocation error for acpi_perf_data.\n"); + return -ENOMEM; } /* Do initialization in ACPI core */ @@ -574,14 +565,11 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy) dprintk("acpi_cpufreq_cpu_init\n"); - if (!acpi_perf_data[cpu]) - return -ENODEV; - data = kzalloc(sizeof(struct acpi_cpufreq_data), GFP_KERNEL); if (!data) return -ENOMEM; - data->acpi_data = acpi_perf_data[cpu]; + data->acpi_data = percpu_ptr(acpi_perf_data, cpu); drv_data[cpu] = data; if (cpu_has(c, X86_FEATURE_CONSTANT_TSC)) @@ -778,24 +766,25 @@ static struct cpufreq_driver acpi_cpufreq_driver = { static int __init acpi_cpufreq_init(void) { + int ret; + dprintk("acpi_cpufreq_init\n"); - acpi_cpufreq_early_init(); + ret = acpi_cpufreq_early_init(); + if (ret) + return ret; return cpufreq_register_driver(&acpi_cpufreq_driver); } static void __exit acpi_cpufreq_exit(void) { - unsigned int i; dprintk("acpi_cpufreq_exit\n"); cpufreq_unregister_driver(&acpi_cpufreq_driver); - for_each_possible_cpu(i) { - kfree(acpi_perf_data[i]); - acpi_perf_data[i] = NULL; - } + free_percpu(acpi_perf_data); + return; } diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c index 9c4bd220c44fdf30381046b169c336365f10214a..86fd142f4bf3929731a7b43ef3dc1d1d825f696d 100644 --- a/drivers/acpi/asus_acpi.c +++ b/drivers/acpi/asus_acpi.c @@ -1192,6 +1192,7 @@ static int asus_hotk_get_info(void) break; default: kfree(model); + model = NULL; break; } } diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 81651032791b32364e3ed3b4cc45c0341a9db355..d7b499fe0cd932fec5f8c6a9c7237cd38b962acc 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -113,7 +113,7 @@ struct acpi_battery_info { acpi_string oem_info; }; -enum acpi_battery_files{ +enum acpi_battery_files { ACPI_BATTERY_INFO = 0, ACPI_BATTERY_STATE, ACPI_BATTERY_ALARM, @@ -129,13 +129,14 @@ struct acpi_battery_flags { }; struct acpi_battery { - struct mutex mutex; struct acpi_device *device; struct acpi_battery_flags flags; struct acpi_buffer bif_data; struct acpi_buffer bst_data; + struct mutex lock; unsigned long alarm; unsigned long update_time[ACPI_BATTERY_NUMFILES]; + }; inline int acpi_battery_present(struct acpi_battery *battery) @@ -235,10 +236,10 @@ static int acpi_battery_get_info(struct acpi_battery *battery) return 0; /* Evaluate _BIF */ - - status = - acpi_evaluate_object(acpi_battery_handle(battery), "_BIF", NULL, - &buffer); + mutex_lock(&battery->lock); + status = acpi_evaluate_object(acpi_battery_handle(battery), "_BIF", + NULL, &buffer); + mutex_unlock(&battery->lock); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF")); return -ENODEV; @@ -285,10 +286,10 @@ static int acpi_battery_get_state(struct acpi_battery *battery) return 0; /* Evaluate _BST */ - - status = - acpi_evaluate_object(acpi_battery_handle(battery), "_BST", NULL, - &buffer); + mutex_lock(&battery->lock); + status = acpi_evaluate_object(acpi_battery_handle(battery), "_BST", + NULL, &buffer); + mutex_unlock(&battery->lock); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BST")); return -ENODEV; @@ -336,9 +337,10 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery, arg0.integer.value = alarm; - status = - acpi_evaluate_object(acpi_battery_handle(battery), "_BTP", + mutex_lock(&battery->lock); + status = acpi_evaluate_object(acpi_battery_handle(battery), "_BTP", &arg_list, NULL); + mutex_unlock(&battery->lock); if (ACPI_FAILURE(status)) return -ENODEV; @@ -658,8 +660,6 @@ acpi_battery_write_alarm(struct file *file, if (!battery || (count > sizeof(alarm_string) - 1)) return -EINVAL; - mutex_lock(&battery->mutex); - result = acpi_battery_update(battery, 1, &update_result); if (result) { result = -ENODEV; @@ -688,9 +688,7 @@ acpi_battery_write_alarm(struct file *file, acpi_battery_check_result(battery, result); if (!result) - result = count; - - mutex_unlock(&battery->mutex); + return count; return result; } @@ -714,8 +712,6 @@ static int acpi_battery_read(int fid, struct seq_file *seq) int update_result = ACPI_BATTERY_NONE_UPDATE; int update = 0; - mutex_lock(&battery->mutex); - update = (get_seconds() - battery->update_time[fid] >= update_time); update = (update | battery->flags.update[fid]); @@ -733,7 +729,6 @@ static int acpi_battery_read(int fid, struct seq_file *seq) result = acpi_read_funcs[fid].print(seq, result); acpi_battery_check_result(battery, result); battery->flags.update[fid] = result; - mutex_unlock(&battery->mutex); return result; } @@ -897,10 +892,7 @@ static int acpi_battery_add(struct acpi_device *device) if (!battery) return -ENOMEM; - mutex_init(&battery->mutex); - - mutex_lock(&battery->mutex); - + mutex_init(&battery->lock); battery->device = device; strcpy(acpi_device_name(device), ACPI_BATTERY_DEVICE_NAME); strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS); @@ -936,7 +928,6 @@ static int acpi_battery_add(struct acpi_device *device) kfree(battery); } - mutex_unlock(&battery->mutex); return result; } @@ -951,8 +942,6 @@ static int acpi_battery_remove(struct acpi_device *device, int type) battery = acpi_driver_data(device); - mutex_lock(&battery->mutex); - status = acpi_remove_notify_handler(device->handle, ACPI_ALL_NOTIFY, acpi_battery_notify); @@ -963,9 +952,7 @@ static int acpi_battery_remove(struct acpi_device *device, int type) kfree(battery->bst_data.pointer); - mutex_unlock(&battery->mutex); - - mutex_destroy(&battery->mutex); + mutex_destroy(&battery->lock); kfree(battery); diff --git a/drivers/acpi/bay.c b/drivers/acpi/bay.c index 56a5b3fffeb364a14e8fe3ff7f5b9a1ff103f51e..6daf6088ac888329177f35e4f7258bc8dfa42ddb 100644 --- a/drivers/acpi/bay.c +++ b/drivers/acpi/bay.c @@ -337,7 +337,7 @@ static void bay_notify(acpi_handle handle, u32 event, void *data) char *envp[] = { event_string, NULL }; bay_dprintk(handle, "Bay event"); - sprintf(event_string, "BAY_EVENT=%d\n", event); + sprintf(event_string, "BAY_EVENT=%d", event); kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, envp); } diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index 6192c8be66df62587e0ee49e3af2a31b145b38bc..1dabdf4c07b36308e4ece7f7f3a0497ee4bb0c1c 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -336,13 +336,13 @@ static void hotplug_dock_devices(struct dock_station *ds, u32 event) static void dock_event(struct dock_station *ds, u32 event, int num) { struct device *dev = &dock_device->dev; - char event_string[7]; + char event_string[13]; char *envp[] = { event_string, NULL }; if (num == UNDOCK_EVENT) - sprintf(event_string, "UNDOCK"); + sprintf(event_string, "EVENT=undock"); else - sprintf(event_string, "DOCK"); + sprintf(event_string, "EVENT=dock"); /* * Indicate that the status of the dock station has diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 469f3f57f88133c43ad30f492fb8b7c28fd8658d..2300d81bbc4e4aaf9b8fd17050ab0b4df9923d67 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -471,7 +471,6 @@ static void acpi_ec_gpe_query(void *ec_cxt) } } mutex_unlock(&ec->lock); - printk(KERN_ERR PREFIX "Handler for query 0x%x is not found!\n", value); } static u32 acpi_ec_gpe_handler(void *data) @@ -653,42 +652,39 @@ static struct acpi_ec *make_acpi_ec(void) } static acpi_status -acpi_ec_register_query_methods(acpi_handle handle, u32 level, - void *context, void **return_value) +ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval) { - struct acpi_namespace_node *node = handle; - struct acpi_ec *ec = context; - int value = 0; - if (sscanf(node->name.ascii, "_Q%x", &value) == 1) { - acpi_ec_add_query_handler(ec, value, handle, NULL, NULL); - } - return AE_OK; -} + acpi_status status; -static int ec_parse_device(struct acpi_ec *ec, acpi_handle handle) -{ - if (ACPI_FAILURE(acpi_walk_resources(handle, METHOD_NAME__CRS, - ec_parse_io_ports, ec))) - return -EINVAL; + struct acpi_ec *ec = context; + status = acpi_walk_resources(handle, METHOD_NAME__CRS, + ec_parse_io_ports, ec); + if (ACPI_FAILURE(status)) + return status; /* Get GPE bit assignment (EC events). */ /* TODO: Add support for _GPE returning a package */ - if (ACPI_FAILURE(acpi_evaluate_integer(handle, "_GPE", NULL, &ec->gpe))) - return -EINVAL; + status = acpi_evaluate_integer(handle, "_GPE", NULL, &ec->gpe); + if (ACPI_FAILURE(status)) + return status; /* Use the global lock for all EC transactions? */ acpi_evaluate_integer(handle, "_GLK", NULL, &ec->global_lock); - /* Find and register all query methods */ - acpi_walk_namespace(ACPI_TYPE_METHOD, handle, 1, - acpi_ec_register_query_methods, ec, NULL); - ec->handle = handle; - printk(KERN_INFO PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx", + printk(KERN_INFO PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n", ec->gpe, ec->command_addr, ec->data_addr); - return 0; + return AE_CTRL_TERMINATE; +} + +static void ec_remove_handlers(struct acpi_ec *ec) +{ + acpi_remove_address_space_handler(ec->handle, + ACPI_ADR_SPACE_EC, + &acpi_ec_space_handler); + acpi_remove_gpe_handler(NULL, ec->gpe, &acpi_ec_gpe_handler); } static int acpi_ec_add(struct acpi_device *device) @@ -705,7 +701,8 @@ static int acpi_ec_add(struct acpi_device *device) if (!ec) return -ENOMEM; - if (ec_parse_device(ec, device->handle)) { + if (ec_parse_device(device->handle, 0, ec, NULL) != + AE_CTRL_TERMINATE) { kfree(ec); return -EINVAL; } @@ -713,16 +710,13 @@ static int acpi_ec_add(struct acpi_device *device) /* Check if we found the boot EC */ if (boot_ec) { if (boot_ec->gpe == ec->gpe) { - /* We might have incorrect info for GL at boot time */ - mutex_lock(&boot_ec->lock); - boot_ec->global_lock = ec->global_lock; - /* Copy handlers from new ec into boot ec */ - list_splice(&ec->list, &boot_ec->list); - mutex_unlock(&boot_ec->lock); - kfree(ec); - ec = boot_ec; + ec_remove_handlers(boot_ec); + mutex_destroy(&boot_ec->lock); + kfree(boot_ec); + first_ec = boot_ec = NULL; } - } else + } + if (!first_ec) first_ec = ec; ec->handle = device->handle; acpi_driver_data(device) = ec; @@ -734,14 +728,14 @@ static int acpi_ec_add(struct acpi_device *device) static int acpi_ec_remove(struct acpi_device *device, int type) { struct acpi_ec *ec; - struct acpi_ec_query_handler *handler; + struct acpi_ec_query_handler *handler, *tmp; if (!device) return -EINVAL; ec = acpi_driver_data(device); mutex_lock(&ec->lock); - list_for_each_entry(handler, &ec->list, node) { + list_for_each_entry_safe(handler, tmp, &ec->list, node) { list_del(&handler->node); kfree(handler); } @@ -751,9 +745,6 @@ static int acpi_ec_remove(struct acpi_device *device, int type) if (ec == first_ec) first_ec = NULL; - /* Don't touch boot EC */ - if (boot_ec != ec) - kfree(ec); return 0; } @@ -817,9 +808,7 @@ static int acpi_ec_start(struct acpi_device *device) if (!ec) return -EINVAL; - /* Boot EC is already working */ - if (ec != boot_ec) - ret = ec_install_handlers(ec); + ret = ec_install_handlers(ec); /* EC is fully operational, allow queries */ atomic_set(&ec->query_pending, 0); @@ -829,7 +818,6 @@ static int acpi_ec_start(struct acpi_device *device) static int acpi_ec_stop(struct acpi_device *device, int type) { - acpi_status status; struct acpi_ec *ec; if (!device) @@ -838,21 +826,7 @@ static int acpi_ec_stop(struct acpi_device *device, int type) ec = acpi_driver_data(device); if (!ec) return -EINVAL; - - /* Don't touch boot EC */ - if (ec == boot_ec) - return 0; - - status = acpi_remove_address_space_handler(ec->handle, - ACPI_ADR_SPACE_EC, - &acpi_ec_space_handler); - if (ACPI_FAILURE(status)) - return -ENODEV; - - status = acpi_remove_gpe_handler(NULL, ec->gpe, &acpi_ec_gpe_handler); - if (ACPI_FAILURE(status)) - return -ENODEV; - + ec_remove_handlers(ec); return 0; } @@ -868,18 +842,21 @@ int __init acpi_ec_ecdt_probe(void) /* * Generate a boot ec context */ - status = acpi_get_table(ACPI_SIG_ECDT, 1, (struct acpi_table_header **)&ecdt_ptr); - if (ACPI_FAILURE(status)) - goto error; - - printk(KERN_INFO PREFIX "EC description table is found, configuring boot EC\n"); - - boot_ec->command_addr = ecdt_ptr->control.address; - boot_ec->data_addr = ecdt_ptr->data.address; - boot_ec->gpe = ecdt_ptr->gpe; - boot_ec->handle = ACPI_ROOT_OBJECT; + if (ACPI_SUCCESS(status)) { + printk(KERN_INFO PREFIX "EC description table is found, configuring boot EC\n\n"); + boot_ec->command_addr = ecdt_ptr->control.address; + boot_ec->data_addr = ecdt_ptr->data.address; + boot_ec->gpe = ecdt_ptr->gpe; + boot_ec->handle = ACPI_ROOT_OBJECT; + } else { + printk(KERN_DEBUG PREFIX "Look up EC in DSDT\n"); + status = acpi_get_devices(ec_device_ids[0].id, ec_parse_device, + boot_ec, NULL); + if (ACPI_FAILURE(status)) + goto error; + } ret = ec_install_handlers(boot_ec); if (!ret) { diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c index dfa5853b17f097555095c9b87668d03a39ba6bd8..95637a4ff782b1d5975e656a23dcd2559d0dbcb9 100644 --- a/drivers/acpi/event.c +++ b/drivers/acpi/event.c @@ -108,7 +108,7 @@ static const struct file_operations acpi_system_event_ops = { }; #ifdef CONFIG_NET -unsigned int acpi_event_seqnum; +static unsigned int acpi_event_seqnum; struct acpi_genl_event { acpi_device_class device_class; char bus_id[15]; diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index a898991f77cbcfb18fc41c481afeca1fc63f0697..a8634a0655fca429b0a52f3c43b8d57a8ccc3095 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -969,11 +969,17 @@ static void acpi_processor_power_verify_c3(struct acpi_processor *pr, } if (pr->flags.bm_check) { - /* bus mastering control is necessary */ if (!pr->flags.bm_control) { - /* In this case we enter C3 without bus mastering */ - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "C3 support without bus mastering control\n")); + if (pr->flags.has_cst != 1) { + /* bus mastering control is necessary */ + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "C3 support requires BM control\n")); + return; + } else { + /* Here we enter C3 without bus mastering */ + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "C3 support without BM control\n")); + } } } else { /* diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index c4efc0c17f8f3029d244962be92482b30e36bcb4..463b0247cbc517c40567446df9446fff389c849b 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -539,7 +539,7 @@ static int acpi_processor_get_psd(struct acpi_processor *pr) } int acpi_processor_preregister_performance( - struct acpi_processor_performance **performance) + struct acpi_processor_performance *performance) { int count, count_target; int retval = 0; @@ -567,12 +567,12 @@ int acpi_processor_preregister_performance( continue; } - if (!performance || !performance[i]) { + if (!performance || !percpu_ptr(performance, i)) { retval = -EINVAL; continue; } - pr->performance = performance[i]; + pr->performance = percpu_ptr(performance, i); cpu_set(i, pr->performance->shared_cpu_map); if (acpi_processor_get_psd(pr)) { retval = -EINVAL; diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c index 7d8e78ea13a514c4969aaecc069b73f2a3b400d8..82c3a550016d82068798351123f5d2b429ef64d4 100644 --- a/drivers/acpi/sbs.c +++ b/drivers/acpi/sbs.c @@ -1415,7 +1415,7 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type) char dir_name[32]; int do_battery_init = 0, do_ac_init = 0; int old_remaining_capacity = 0; - int update_ac = 1, update_battery = 1; + int update_battery = 1; int up_tm = update_time; if (sbs_zombie(sbs)) { @@ -1435,10 +1435,6 @@ static int acpi_sbs_update_run(struct acpi_sbs *sbs, int id, int data_type) sbs->run_cnt++; - if (!update_ac && !update_battery) { - goto end; - } - old_ac_present = sbs->ac.ac_present; result = acpi_ac_get_present(sbs); diff --git a/drivers/acpi/tables/tbxface.c b/drivers/acpi/tables/tbxface.c index 5b302c4e293f78dd734e9c322a6551f03c01b493..a9e3331fee5deade7a3e8047a3c9da980e103f25 100644 --- a/drivers/acpi/tables/tbxface.c +++ b/drivers/acpi/tables/tbxface.c @@ -52,6 +52,8 @@ ACPI_MODULE_NAME("tbxface") /* Local prototypes */ static acpi_status acpi_tb_load_namespace(void); +static int no_auto_ssdt; + /******************************************************************************* * * FUNCTION: acpi_allocate_root_table @@ -536,6 +538,10 @@ static acpi_status acpi_tb_load_namespace(void) ACPI_INFO((AE_INFO, "Table DSDT replaced by host OS")); acpi_tb_print_table_header(0, table); + + if (no_auto_ssdt == 0) { + printk(KERN_WARNING "ACPI: DSDT override uses original SSDTs unless \"acpi_no_auto_ssdt\""); + } } status = @@ -577,6 +583,11 @@ static acpi_status acpi_tb_load_namespace(void) continue; } + if (no_auto_ssdt) { + printk(KERN_WARNING "ACPI: SSDT ignored due to \"acpi_no_auto_ssdt\"\n"); + continue; + } + /* Ignore errors while loading tables, get as many as possible */ (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); @@ -622,3 +633,15 @@ acpi_status acpi_load_tables(void) } ACPI_EXPORT_SYMBOL(acpi_load_tables) + + +static int __init acpi_no_auto_ssdt_setup(char *s) { + + printk(KERN_NOTICE "ACPI: SSDT auto-load disabled\n"); + + no_auto_ssdt = 1; + + return 1; +} + +__setup("acpi_no_auto_ssdt", acpi_no_auto_ssdt_setup); diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 5a62de1b7f2a0e040f1d32a537bc8693a37b0584..1e06159fd9c4a529435615646aedce6c77c0fa96 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -33,6 +33,7 @@ #include #include +#include #include #include #include @@ -74,10 +75,26 @@ MODULE_AUTHOR("Paul Diefenbaugh"); MODULE_DESCRIPTION("ACPI Thermal Zone Driver"); MODULE_LICENSE("GPL"); +static int act; +module_param(act, int, 0644); +MODULE_PARM_DESC(act, "Disable or override all lowest active trip points.\n"); + static int tzp; -module_param(tzp, int, 0); +module_param(tzp, int, 0444); MODULE_PARM_DESC(tzp, "Thermal zone polling frequency, in 1/10 seconds.\n"); +static int nocrt; +module_param(nocrt, int, 0); +MODULE_PARM_DESC(nocrt, "Set to disable action on ACPI thermal zone critical and hot trips.\n"); + +static int off; +module_param(off, int, 0); +MODULE_PARM_DESC(off, "Set to disable ACPI thermal support.\n"); + +static int psv; +module_param(psv, int, 0644); +MODULE_PARM_DESC(psv, "Disable or override all passive trip points.\n"); + static int acpi_thermal_add(struct acpi_device *device); static int acpi_thermal_remove(struct acpi_device *device, int type); static int acpi_thermal_resume(struct acpi_device *device); @@ -339,9 +356,16 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz) /* Passive: Processors (optional) */ - status = - acpi_evaluate_integer(tz->device->handle, "_PSV", NULL, - &tz->trips.passive.temperature); + if (psv == -1) { + status = AE_SUPPORT; + } else if (psv > 0) { + tz->trips.passive.temperature = CELSIUS_TO_KELVIN(psv); + status = AE_OK; + } else { + status = acpi_evaluate_integer(tz->device->handle, + "_PSV", NULL, &tz->trips.passive.temperature); + } + if (ACPI_FAILURE(status)) { tz->trips.passive.flags.valid = 0; ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No passive threshold\n")); @@ -386,11 +410,33 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz) char name[5] = { '_', 'A', 'C', ('0' + i), '\0' }; - status = - acpi_evaluate_integer(tz->device->handle, name, NULL, - &tz->trips.active[i].temperature); - if (ACPI_FAILURE(status)) + if (act == -1) + break; /* disable all active trip points */ + + status = acpi_evaluate_integer(tz->device->handle, + name, NULL, &tz->trips.active[i].temperature); + + if (ACPI_FAILURE(status)) { + if (i == 0) /* no active trip points */ + break; + if (act <= 0) /* no override requested */ + break; + if (i == 1) { /* 1 trip point */ + tz->trips.active[0].temperature = + CELSIUS_TO_KELVIN(act); + } else { /* multiple trips */ + /* + * Don't allow override higher than + * the next higher trip point + */ + tz->trips.active[i - 1].temperature = + (tz->trips.active[i - 2].temperature < + CELSIUS_TO_KELVIN(act) ? + tz->trips.active[i - 2].temperature : + CELSIUS_TO_KELVIN(act)); + } break; + } name[2] = 'L'; status = @@ -427,7 +473,7 @@ static int acpi_thermal_get_devices(struct acpi_thermal *tz) static int acpi_thermal_critical(struct acpi_thermal *tz) { - if (!tz || !tz->trips.critical.flags.valid) + if (!tz || !tz->trips.critical.flags.valid || nocrt) return -EINVAL; if (tz->temperature >= tz->trips.critical.temperature) { @@ -449,7 +495,7 @@ static int acpi_thermal_critical(struct acpi_thermal *tz) static int acpi_thermal_hot(struct acpi_thermal *tz) { - if (!tz || !tz->trips.hot.flags.valid) + if (!tz || !tz->trips.hot.flags.valid || nocrt) return -EINVAL; if (tz->temperature >= tz->trips.hot.temperature) { @@ -824,12 +870,14 @@ static int acpi_thermal_trip_seq_show(struct seq_file *seq, void *offset) goto end; if (tz->trips.critical.flags.valid) - seq_printf(seq, "critical (S5): %ld C\n", - KELVIN_TO_CELSIUS(tz->trips.critical.temperature)); + seq_printf(seq, "critical (S5): %ld C%s", + KELVIN_TO_CELSIUS(tz->trips.critical.temperature), + nocrt ? " \n" : "\n"); if (tz->trips.hot.flags.valid) - seq_printf(seq, "hot (S4): %ld C\n", - KELVIN_TO_CELSIUS(tz->trips.hot.temperature)); + seq_printf(seq, "hot (S4): %ld C%s", + KELVIN_TO_CELSIUS(tz->trips.hot.temperature), + nocrt ? " \n" : "\n"); if (tz->trips.passive.flags.valid) { seq_printf(seq, @@ -1281,11 +1329,78 @@ static int acpi_thermal_resume(struct acpi_device *device) return AE_OK; } +#ifdef CONFIG_DMI +static int thermal_act(struct dmi_system_id *d) { + + if (act == 0) { + printk(KERN_NOTICE "ACPI: %s detected: " + "disabling all active thermal trip points\n", d->ident); + act = -1; + } + return 0; +} +static int thermal_tzp(struct dmi_system_id *d) { + + if (tzp == 0) { + printk(KERN_NOTICE "ACPI: %s detected: " + "enabling thermal zone polling\n", d->ident); + tzp = 300; /* 300 dS = 30 Seconds */ + } + return 0; +} +static int thermal_psv(struct dmi_system_id *d) { + + if (psv == 0) { + printk(KERN_NOTICE "ACPI: %s detected: " + "disabling all passive thermal trip points\n", d->ident); + psv = -1; + } + return 0; +} + +static struct dmi_system_id thermal_dmi_table[] __initdata = { + /* + * Award BIOS on this AOpen makes thermal control almost worthless. + * http://bugzilla.kernel.org/show_bug.cgi?id=8842 + */ + { + .callback = thermal_act, + .ident = "AOpen i915GMm-HFS", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"), + DMI_MATCH(DMI_BOARD_NAME, "i915GMm-HFS"), + }, + }, + { + .callback = thermal_psv, + .ident = "AOpen i915GMm-HFS", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"), + DMI_MATCH(DMI_BOARD_NAME, "i915GMm-HFS"), + }, + }, + { + .callback = thermal_tzp, + .ident = "AOpen i915GMm-HFS", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "AOpen"), + DMI_MATCH(DMI_BOARD_NAME, "i915GMm-HFS"), + }, + }, + {} +}; +#endif /* CONFIG_DMI */ + static int __init acpi_thermal_init(void) { int result = 0; + dmi_check_system(thermal_dmi_table); + if (off) { + printk(KERN_NOTICE "ACPI: thermal control disabled\n"); + return -ENODEV; + } acpi_thermal_dir = proc_mkdir(ACPI_THERMAL_CLASS, acpi_root_dir); if (!acpi_thermal_dir) return -ENODEV; diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c index 73037a4d3c5023f2e7b31fccf804f61a8ece0b08..aeec67e27264463c5697ac4652212d8a8e13fb73 100644 --- a/drivers/char/sonypi.c +++ b/drivers/char/sonypi.c @@ -1147,10 +1147,15 @@ static int sonypi_acpi_remove(struct acpi_device *device, int type) return 0; } +const static struct acpi_device_id sonypi_device_ids[] = { + {"SNY6001", 0}, + {"", 0}, +}; + static struct acpi_driver sonypi_acpi_driver = { .name = "sonypi", .class = "hkey", - .ids = "SNY6001", + .ids = sonypi_device_ids, .ops = { .add = sonypi_acpi_add, .remove = sonypi_acpi_remove, diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index aaaa61ea4217a5013da3933b768da1e99d261ed3..518d5d33546489e2d4de6fca87e5a9983ce05fb0 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -200,14 +200,22 @@ config THINKPAD_ACPI_BAY config THINKPAD_ACPI_INPUT_ENABLED bool "Enable input layer support by default" depends on THINKPAD_ACPI - default y + default n ---help--- - Enables hot key handling over the input layer by default. If unset, - the driver does not enable any hot key handling by default, and also - starts up with a mostly empty keymap. - - If you are not sure, say Y here. Say N to retain the deprecated - behavior of ibm-acpi, and thinkpad-acpi for kernels up to 2.6.21. + This option enables thinkpad-acpi hot key handling over the input + layer at driver load time. When it is unset, the driver does not + enable hot key handling by default, and also starts up with a mostly + empty keymap. + + This option should be enabled if you have a new enough HAL or other + userspace support that properly handles the thinkpad-acpi event + device. It auto-tunes the hot key support to those reported by the + firmware and enables it automatically. + + If unsure, say N here to retain the old behaviour of ibm-acpi, and + thinkpad-acpi up to kernel 2.6.21: userspace will have to enable and + set up the thinkpad-acpi hot key handling using the sysfs interace + after loading the driver. endif # MISC_DEVICES diff --git a/drivers/misc/sony-laptop.c b/drivers/misc/sony-laptop.c index 14ee06c8f12727ebd3d0a950b7e870d440616305..91da6880ae9390fc2e46490836cd7de97ba27367 100644 --- a/drivers/misc/sony-laptop.c +++ b/drivers/misc/sony-laptop.c @@ -845,7 +845,7 @@ static struct sony_nc_event sony_C_events[] = { }; /* SNC-only model map */ -struct dmi_system_id sony_nc_ids[] = { +static struct dmi_system_id sony_nc_ids[] = { { .ident = "Sony Vaio FE Series", .callback = sony_nc_C_enable, @@ -942,6 +942,11 @@ static int sony_nc_resume(struct acpi_device *device) } } + /* set the last requested brightness level */ + if (sony_backlight_device && + !sony_backlight_update_status(sony_backlight_device)) + printk(KERN_WARNING DRV_PFX "unable to restore brightness level"); + /* re-initialize models with specific requirements */ dmi_check_system(sony_nc_ids); diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c index fa80f355e522ffc65f6a67caa96659e1e7f2e7d0..f6cd34a3dbaca218cf0ff8a19ff94d03c41cb8d7 100644 --- a/drivers/misc/thinkpad_acpi.c +++ b/drivers/misc/thinkpad_acpi.c @@ -4668,12 +4668,15 @@ static int __init thinkpad_acpi_module_init(void) thinkpad_acpi_module_exit(); return ret; } + tp_features.platform_drv_registered = 1; + ret = tpacpi_create_driver_attributes(&tpacpi_pdriver.driver); if (ret) { printk(IBM_ERR "unable to create sysfs driver attributes\n"); thinkpad_acpi_module_exit(); return ret; } + tp_features.platform_drv_attrs_registered = 1; /* Device initialization */ @@ -4756,8 +4759,11 @@ static void thinkpad_acpi_module_exit(void) if (tpacpi_pdev) platform_device_unregister(tpacpi_pdev); - tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); - platform_driver_unregister(&tpacpi_pdriver); + if (tp_features.platform_drv_attrs_registered) + tpacpi_remove_driver_attributes(&tpacpi_pdriver.driver); + + if (tp_features.platform_drv_registered) + platform_driver_unregister(&tpacpi_pdriver); if (proc_dir) remove_proc_entry(IBM_PROC_DIR, acpi_root_dir); diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h index 88af089d64945b41a5150e545a5064ce1b6f0a5a..eee8809a50d9aed1ed796a20fe6f4c5a6ae4ae5c 100644 --- a/drivers/misc/thinkpad_acpi.h +++ b/drivers/misc/thinkpad_acpi.h @@ -246,6 +246,8 @@ static struct { u16 wan:1; u16 fan_ctrl_status_undef:1; u16 input_device_registered:1; + u16 platform_drv_registered:1; + u16 platform_drv_attrs_registered:1; } tp_features; struct thinkpad_id_data { diff --git a/include/acpi/processor.h b/include/acpi/processor.h index f9f987f8e661b9afef361919314363500c05b183..ec3ffdadb4d257c452d091b30e8322c01c049e3f 100644 --- a/include/acpi/processor.h +++ b/include/acpi/processor.h @@ -232,7 +232,7 @@ struct acpi_processor_errata { extern int acpi_processor_preregister_performance(struct acpi_processor_performance - **performance); + *performance); extern int acpi_processor_register_performance(struct acpi_processor_performance *performance, unsigned int cpu);