diff options
Diffstat (limited to 'drivers/acpi')
97 files changed, 4878 insertions, 2335 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index e56d19207f7a..0ed42d8870c7 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -60,7 +60,11 @@ config ACPI_PROCFS /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP) /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer) /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level) - + /proc/acpi/processor/*/power (/sys/devices/system/cpu/*/cpuidle/*) + /proc/acpi/processor/*/performance (/sys/devices/system/cpu/*/ + cpufreq/*) + /proc/acpi/processor/*/throttling (/sys/class/thermal/ + cooling_device*/*) This option has no effect on /proc/acpi/ files and functions which do not yet exist in /sys. @@ -82,6 +86,17 @@ config ACPI_PROCFS_POWER Say N to delete power /proc/acpi/ directories that have moved to /sys/ +config ACPI_POWER_METER + tristate "ACPI 4.0 power meter" + depends on HWMON + help + This driver exposes ACPI 4.0 power meters as hardware monitoring + devices. Say Y (or M) if you have a computer with ACPI 4.0 firmware + and a power meter. + + To compile this driver as a module, choose M here: + the module will be called power-meter. + config ACPI_SYSFS_POWER bool "Future power /sys interface" select POWER_SUPPLY diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 8dae61c8a176..7702118509a0 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -56,6 +56,7 @@ obj-$(CONFIG_ACPI_HOTPLUG_MEMORY) += acpi_memhotplug.o obj-$(CONFIG_ACPI_BATTERY) += battery.o obj-$(CONFIG_ACPI_SBS) += sbshc.o obj-$(CONFIG_ACPI_SBS) += sbs.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 diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 0df8fcb687d6..98b9690b0159 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -37,6 +37,8 @@ #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#define PREFIX "ACPI: " + #define ACPI_AC_CLASS "ac_adapter" #define ACPI_AC_DEVICE_NAME "AC Adapter" #define ACPI_AC_FILE_STATE "state" diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index 7a0f4aa4fa1e..28ccdbc05ac8 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -38,6 +38,9 @@ #define _COMPONENT ACPI_MEMORY_DEVICE_COMPONENT +#undef PREFIX +#define PREFIX "ACPI:memory_hp:" + ACPI_MODULE_NAME("acpi_memhotplug"); MODULE_AUTHOR("Naveen B S <naveen.b.s@intel.com>"); MODULE_DESCRIPTION("Hotplug Mem Driver"); @@ -50,7 +53,6 @@ MODULE_LICENSE("GPL"); static int acpi_memory_device_add(struct acpi_device *device); static int acpi_memory_device_remove(struct acpi_device *device, int type); -static int acpi_memory_device_start(struct acpi_device *device); static const struct acpi_device_id memory_device_ids[] = { {ACPI_MEMORY_DEVICE_HID, 0}, @@ -65,7 +67,6 @@ static struct acpi_driver acpi_memory_device_driver = { .ops = { .add = acpi_memory_device_add, .remove = acpi_memory_device_remove, - .start = acpi_memory_device_start, }, }; @@ -153,6 +154,7 @@ acpi_memory_get_device(acpi_handle handle, acpi_handle phandle; struct acpi_device *device = NULL; struct acpi_device *pdevice = NULL; + int result; if (!acpi_bus_get_device(handle, &device) && device) @@ -165,9 +167,9 @@ acpi_memory_get_device(acpi_handle handle, } /* Get the parent device */ - status = acpi_bus_get_device(phandle, &pdevice); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "Cannot get acpi bus device")); + result = acpi_bus_get_device(phandle, &pdevice); + if (result) { + printk(KERN_WARNING PREFIX "Cannot get acpi bus device"); return -EINVAL; } @@ -175,9 +177,9 @@ acpi_memory_get_device(acpi_handle handle, * Now add the notified device. This creates the acpi_device * and invokes .add function */ - status = acpi_bus_add(&device, pdevice, handle, ACPI_BUS_TYPE_DEVICE); - if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "Cannot add acpi bus")); + result = acpi_bus_add(&device, pdevice, handle, ACPI_BUS_TYPE_DEVICE); + if (result) { + printk(KERN_WARNING PREFIX "Cannot add acpi bus"); return -EINVAL; } @@ -238,7 +240,12 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device) num_enabled++; continue; } - + /* + * If the memory block size is zero, please ignore it. + * Don't try to do the following memory hotplug flowchart. + */ + if (!info->length) + continue; if (node < 0) node = memory_add_physaddr_to_nid(info->start_addr); @@ -253,8 +260,15 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device) mem_device->state = MEMORY_INVALID_STATE; return -EINVAL; } - - return result; + /* + * Sometimes the memory device will contain several memory blocks. + * When one memory block is hot-added to the system memory, it will + * be regarded as a success. + * Otherwise if the last memory block can't be hot-added to the system + * memory, it will be failure and the memory device can't be bound with + * driver. + */ + return 0; } static int acpi_memory_powerdown_device(struct acpi_memory_device *mem_device) @@ -415,28 +429,6 @@ static int acpi_memory_device_add(struct acpi_device *device) printk(KERN_DEBUG "%s \n", acpi_device_name(device)); - return result; -} - -static int acpi_memory_device_remove(struct acpi_device *device, int type) -{ - struct acpi_memory_device *mem_device = NULL; - - - if (!device || !acpi_driver_data(device)) - return -EINVAL; - - mem_device = acpi_driver_data(device); - kfree(mem_device); - - return 0; -} - -static int acpi_memory_device_start (struct acpi_device *device) -{ - struct acpi_memory_device *mem_device; - int result = 0; - /* * Early boot code has recognized memory area by EFI/E820. * If DSDT shows these memory devices on boot, hotplug is not necessary @@ -446,8 +438,6 @@ static int acpi_memory_device_start (struct acpi_device *device) if (!acpi_hotmem_initialized) return 0; - mem_device = acpi_driver_data(device); - if (!acpi_memory_check_device(mem_device)) { /* call add_memory func */ result = acpi_memory_enable_device(mem_device); @@ -458,6 +448,20 @@ static int acpi_memory_device_start (struct acpi_device *device) return result; } +static int acpi_memory_device_remove(struct acpi_device *device, int type) +{ + struct acpi_memory_device *mem_device = NULL; + + + if (!device || !acpi_driver_data(device)) + return -EINVAL; + + mem_device = acpi_driver_data(device); + kfree(mem_device); + + return 0; +} + /* * Helper function to check for memory device */ @@ -465,26 +469,23 @@ static acpi_status is_memory_device(acpi_handle handle) { char *hardware_id; acpi_status status; - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; struct acpi_device_info *info; - - status = acpi_get_object_info(handle, &buffer); + status = acpi_get_object_info(handle, &info); if (ACPI_FAILURE(status)) return status; - info = buffer.pointer; if (!(info->valid & ACPI_VALID_HID)) { - kfree(buffer.pointer); + kfree(info); return AE_ERROR; } - hardware_id = info->hardware_id.value; + hardware_id = info->hardware_id.string; if ((hardware_id == NULL) || (strcmp(hardware_id, ACPI_MEMORY_DEVICE_HID))) status = AE_ERROR; - kfree(buffer.pointer); + kfree(info); return status; } diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile index 72ac28da14e3..e7973bc16846 100644 --- a/drivers/acpi/acpica/Makefile +++ b/drivers/acpi/acpica/Makefile @@ -28,7 +28,7 @@ acpi-$(ACPI_FUTURE_USAGE) += hwtimer.o acpi-y += nsaccess.o nsload.o nssearch.o nsxfeval.o \ nsalloc.o nseval.o nsnames.o nsutils.o nsxfname.o \ nsdump.o nsinit.o nsobject.o nswalk.o nsxfobj.o \ - nsparse.o nspredef.o + nsparse.o nspredef.o nsrepair.o acpi-$(ACPI_FUTURE_USAGE) += nsdumpdv.o @@ -44,4 +44,4 @@ acpi-y += tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o acpi-y += utalloc.o utdebug.o uteval.o utinit.o utmisc.o utxface.o \ utcopy.o utdelete.o utglobal.o utmath.o utobject.o \ - utstate.o utmutex.o utobject.o utresrc.o utlock.o + utstate.o utmutex.o utobject.o utresrc.o utlock.o utids.o diff --git a/drivers/acpi/acpica/acconfig.h b/drivers/acpi/acpica/acconfig.h index e6777fb883d2..8e679ef5b231 100644 --- a/drivers/acpi/acpica/acconfig.h +++ b/drivers/acpi/acpica/acconfig.h @@ -183,7 +183,7 @@ /* Operation regions */ -#define ACPI_NUM_PREDEFINED_REGIONS 8 +#define ACPI_NUM_PREDEFINED_REGIONS 9 #define ACPI_USER_REGION_BEGIN 0x80 /* Maximum space_ids for Operation Regions */ @@ -199,9 +199,15 @@ #define ACPI_RSDP_CHECKSUM_LENGTH 20 #define ACPI_RSDP_XCHECKSUM_LENGTH 36 -/* SMBus bidirectional buffer size */ +/* SMBus and IPMI bidirectional buffer size */ #define ACPI_SMBUS_BUFFER_SIZE 34 +#define ACPI_IPMI_BUFFER_SIZE 66 + +/* _sx_d and _sx_w control methods */ + +#define ACPI_NUM_sx_d_METHODS 4 +#define ACPI_NUM_sx_w_METHODS 5 /****************************************************************************** * diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h index 62c59df3b86c..a4fb001d96f1 100644 --- a/drivers/acpi/acpica/acdebug.h +++ b/drivers/acpi/acpica/acdebug.h @@ -154,10 +154,6 @@ void acpi_db_display_argument_object(union acpi_operand_object *obj_desc, struct acpi_walk_state *walk_state); -void acpi_db_check_predefined_names(void); - -void acpi_db_batch_execute(void); - /* * dbexec - debugger control method execution */ diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index 3d87362d17ed..29ba66d5a790 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -58,6 +58,10 @@ #define ACPI_INIT_GLOBAL(a,b) a #endif +#ifdef DEFINE_ACPI_GLOBALS + +/* Public globals, available from outside ACPICA subsystem */ + /***************************************************************************** * * Runtime configuration (static defaults that can be overriden at runtime) @@ -78,7 +82,7 @@ * 5) Allow unresolved references (invalid target name) in package objects * 6) Enable warning messages for behavior that is not ACPI spec compliant */ -ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_interpreter_slack, FALSE); +u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_interpreter_slack, FALSE); /* * Automatically serialize ALL control methods? Default is FALSE, meaning @@ -86,27 +90,36 @@ ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_interpreter_slack, FALSE); * Only change this if the ASL code is poorly written and cannot handle * reentrancy even though methods are marked "NotSerialized". */ -ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_all_methods_serialized, FALSE); +u8 ACPI_INIT_GLOBAL(acpi_gbl_all_methods_serialized, FALSE); /* * Create the predefined _OSI method in the namespace? Default is TRUE * because ACPI CA is fully compatible with other ACPI implementations. * Changing this will revert ACPI CA (and machine ASL) to pre-OSI behavior. */ -ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_create_osi_method, TRUE); +u8 ACPI_INIT_GLOBAL(acpi_gbl_create_osi_method, TRUE); /* * Disable wakeup GPEs during runtime? Default is TRUE because WAKE and * RUNTIME GPEs should never be shared, and WAKE GPEs should typically only * be enabled just before going to sleep. */ -ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_leave_wake_gpes_disabled, TRUE); +u8 ACPI_INIT_GLOBAL(acpi_gbl_leave_wake_gpes_disabled, TRUE); /* * Optionally use default values for the ACPI register widths. Set this to * TRUE to use the defaults, if an FADT contains incorrect widths/lengths. */ -ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_use_default_register_widths, TRUE); +u8 ACPI_INIT_GLOBAL(acpi_gbl_use_default_register_widths, TRUE); + +/* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */ + +struct acpi_table_fadt acpi_gbl_FADT; +u32 acpi_current_gpe_count; +u32 acpi_gbl_trace_flags; +acpi_name acpi_gbl_trace_method_name; + +#endif /***************************************************************************** * @@ -114,11 +127,6 @@ ACPI_EXTERN u8 ACPI_INIT_GLOBAL(acpi_gbl_use_default_register_widths, TRUE); * ****************************************************************************/ -/* Runtime configuration of debug print levels */ - -extern u32 acpi_dbg_level; -extern u32 acpi_dbg_layer; - /* Procedure nesting level for debug output */ extern u32 acpi_gbl_nesting_level; @@ -127,10 +135,8 @@ extern u32 acpi_gbl_nesting_level; ACPI_EXTERN u32 acpi_gbl_original_dbg_level; ACPI_EXTERN u32 acpi_gbl_original_dbg_layer; -ACPI_EXTERN acpi_name acpi_gbl_trace_method_name; ACPI_EXTERN u32 acpi_gbl_trace_dbg_level; ACPI_EXTERN u32 acpi_gbl_trace_dbg_layer; -ACPI_EXTERN u32 acpi_gbl_trace_flags; /***************************************************************************** * @@ -142,10 +148,8 @@ ACPI_EXTERN u32 acpi_gbl_trace_flags; * acpi_gbl_root_table_list is the master list of ACPI tables found in the * RSDT/XSDT. * - * acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */ ACPI_EXTERN struct acpi_internal_rsdt acpi_gbl_root_table_list; -ACPI_EXTERN struct acpi_table_fadt acpi_gbl_FADT; ACPI_EXTERN struct acpi_table_facs *acpi_gbl_FACS; /* These addresses are calculated from the FADT Event Block addresses */ @@ -261,7 +265,8 @@ ACPI_EXTERN u8 acpi_gbl_osi_data; extern u8 acpi_gbl_shutdown; extern u32 acpi_gbl_startup_flags; extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT]; -extern const char *acpi_gbl_highest_dstate_names[4]; +extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS]; +extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS]; extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES]; extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS]; @@ -290,6 +295,7 @@ extern char const *acpi_gbl_exception_names_ctrl[]; ACPI_EXTERN struct acpi_namespace_node acpi_gbl_root_node_struct; ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_root_node; ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_fadt_gpe_device; +ACPI_EXTERN union acpi_operand_object *acpi_gbl_module_code_list; extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES]; extern const struct acpi_predefined_names @@ -340,7 +346,6 @@ ACPI_EXTERN struct acpi_fixed_event_handler ACPI_EXTERN struct acpi_gpe_xrupt_info *acpi_gbl_gpe_xrupt_list_head; ACPI_EXTERN struct acpi_gpe_block_info *acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS]; -ACPI_EXTERN u32 acpi_current_gpe_count; /***************************************************************************** * diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h index 4afa3d8e0efb..36192f142fbb 100644 --- a/drivers/acpi/acpica/achware.h +++ b/drivers/acpi/acpica/achware.h @@ -62,6 +62,14 @@ u32 acpi_hw_get_mode(void); /* * hwregs - ACPI Register I/O */ +acpi_status +acpi_hw_validate_register(struct acpi_generic_address *reg, + u8 max_bit_width, u64 *address); + +acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg); + +acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg); + struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id); acpi_status acpi_hw_write_pm1_control(u32 pm1a_control, u32 pm1b_control); diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h index e8db7a3143a5..5db9f2916f7c 100644 --- a/drivers/acpi/acpica/acinterp.h +++ b/drivers/acpi/acpica/acinterp.h @@ -461,9 +461,9 @@ void acpi_ex_acquire_global_lock(u32 rule); void acpi_ex_release_global_lock(u32 rule); -void acpi_ex_eisa_id_to_string(u32 numeric_id, char *out_string); +void acpi_ex_eisa_id_to_string(char *dest, acpi_integer compressed_id); -void acpi_ex_unsigned_integer_to_string(acpi_integer value, char *out_string); +void acpi_ex_integer_to_string(char *dest, acpi_integer value); /* * exregion - default op_region handlers diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index ee986edfa0da..81e64f478679 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -369,6 +369,19 @@ union acpi_predefined_info { struct acpi_package_info3 ret_info3; }; +/* Data block used during object validation */ + +struct acpi_predefined_data { + char *pathname; + const union acpi_predefined_info *predefined; + u32 flags; + u8 node_flags; +}; + +/* Defines for Flags field above */ + +#define ACPI_OBJECT_REPAIRED 1 + /* * Bitmapped return value types * Note: the actual data types must be contiguous, a loop in nspredef.c @@ -885,6 +898,9 @@ struct acpi_bit_register_info { #define ACPI_OSI_WIN_XP_SP2 0x05 #define ACPI_OSI_WINSRV_2003_SP1 0x06 #define ACPI_OSI_WIN_VISTA 0x07 +#define ACPI_OSI_WINSRV_2008 0x08 +#define ACPI_OSI_WIN_VISTA_SP1 0x09 +#define ACPI_OSI_WIN_7 0x0A #define ACPI_ALWAYS_ILLEGAL 0x00 diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h index 91ac7d7b4402..3acd9c6760ea 100644 --- a/drivers/acpi/acpica/acmacros.h +++ b/drivers/acpi/acpica/acmacros.h @@ -340,6 +340,7 @@ */ #define ACPI_ERROR_NAMESPACE(s, e) acpi_ns_report_error (AE_INFO, s, e); #define ACPI_ERROR_METHOD(s, n, p, e) acpi_ns_report_method_error (AE_INFO, s, n, p, e); +#define ACPI_WARN_PREDEFINED(plist) acpi_ut_predefined_warning plist #else @@ -347,6 +348,7 @@ #define ACPI_ERROR_NAMESPACE(s, e) #define ACPI_ERROR_METHOD(s, n, p, e) +#define ACPI_WARN_PREDEFINED(plist) #endif /* ACPI_NO_ERROR_MESSAGES */ /* diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h index 94cdc2b8cb93..09a2764c734b 100644 --- a/drivers/acpi/acpica/acnamesp.h +++ b/drivers/acpi/acpica/acnamesp.h @@ -73,6 +73,14 @@ #define ACPI_NS_WALK_UNLOCK 0x01 #define ACPI_NS_WALK_TEMP_NODES 0x02 +/* Object is not a package element */ + +#define ACPI_NOT_PACKAGE_ELEMENT ACPI_UINT32_MAX + +/* Always emit warning message, not dependent on node flags */ + +#define ACPI_WARN_ALWAYS 0 + /* * nsinit - Namespace initialization */ @@ -144,6 +152,8 @@ struct acpi_namespace_node *acpi_ns_create_node(u32 name); void acpi_ns_delete_node(struct acpi_namespace_node *node); +void acpi_ns_remove_node(struct acpi_namespace_node *node); + void acpi_ns_delete_namespace_subtree(struct acpi_namespace_node *parent_handle); @@ -186,6 +196,8 @@ acpi_ns_dump_objects(acpi_object_type type, */ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info); +void acpi_ns_exec_module_code_list(void); + /* * nspredef - Support for predefined/reserved names */ @@ -260,6 +272,19 @@ acpi_ns_get_attached_data(struct acpi_namespace_node *node, acpi_object_handler handler, void **data); /* + * nsrepair - return object repair for predefined methods/objects + */ +acpi_status +acpi_ns_repair_object(struct acpi_predefined_data *data, + u32 expected_btypes, + u32 package_index, + union acpi_operand_object **return_object_ptr); + +acpi_status +acpi_ns_repair_package_list(struct acpi_predefined_data *data, + union acpi_operand_object **obj_desc_ptr); + +/* * nssearch - Namespace searching and entry */ acpi_status diff --git a/drivers/acpi/acpica/acobject.h b/drivers/acpi/acpica/acobject.h index 544dcf834922..b39d682a2140 100644 --- a/drivers/acpi/acpica/acobject.h +++ b/drivers/acpi/acpica/acobject.h @@ -97,6 +97,8 @@ #define AOPOBJ_OBJECT_INITIALIZED 0x08 #define AOPOBJ_SETUP_COMPLETE 0x10 #define AOPOBJ_SINGLE_DATUM 0x20 +#define AOPOBJ_INVALID 0x40 /* Used if host OS won't allow an op_region address */ +#define AOPOBJ_MODULE_LEVEL 0x80 /****************************************************************************** * diff --git a/drivers/acpi/acpica/acparser.h b/drivers/acpi/acpica/acparser.h index 23ee0fbf5619..22881e8ce229 100644 --- a/drivers/acpi/acpica/acparser.h +++ b/drivers/acpi/acpica/acparser.h @@ -62,6 +62,8 @@ #define ACPI_PARSE_DEFERRED_OP 0x0100 #define ACPI_PARSE_DISASSEMBLE 0x0200 +#define ACPI_PARSE_MODULE_LEVEL 0x0400 + /****************************************************************************** * * Parser interfaces diff --git a/drivers/acpi/acpica/acpredef.h b/drivers/acpi/acpica/acpredef.h index 63f656ae3604..cd80d1dd1950 100644 --- a/drivers/acpi/acpica/acpredef.h +++ b/drivers/acpi/acpica/acpredef.h @@ -64,8 +64,8 @@ * (Used for _PRW) * * - * 2) PTYPE2 packages contain a variable number of sub-packages. Each of the - * different types describe the contents of each of the sub-packages. + * 2) PTYPE2 packages contain a Variable-length number of sub-packages. Each + * of the different types describe the contents of each of the sub-packages. * * ACPI_PTYPE2: Each subpackage contains 1 or 2 object types: * object type @@ -91,6 +91,9 @@ * ACPI_PTYPE2_MIN: Each subpackage has a variable but minimum length * (Used for _HPX) * + * ACPI_PTYPE2_REV_FIXED: Revision at start, each subpackage is Fixed-length + * (Used for _ART, _FPS) + * *****************************************************************************/ enum acpi_return_package_types { @@ -101,9 +104,11 @@ enum acpi_return_package_types { ACPI_PTYPE2_COUNT = 5, ACPI_PTYPE2_PKG_COUNT = 6, ACPI_PTYPE2_FIXED = 7, - ACPI_PTYPE2_MIN = 8 + ACPI_PTYPE2_MIN = 8, + ACPI_PTYPE2_REV_FIXED = 9 }; +#ifdef ACPI_CREATE_PREDEFINED_TABLE /* * Predefined method/object information table. * @@ -136,239 +141,384 @@ enum acpi_return_package_types { * is saved here (rather than in a separate table) in order to minimize the * overall size of the stored data. */ -static const union acpi_predefined_info predefined_names[] = { - {.info = {"_AC0", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_AC1", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_AC2", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_AC3", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_AC4", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_AC5", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_AC6", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_AC7", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_AC8", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_AC9", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_ADR", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_AL0", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_AL1", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_AL2", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_AL3", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_AL4", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_AL5", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_AL6", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_AL7", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_AL8", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_AL9", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_ALC", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_ALI", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_ALP", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_ALR", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 2, 0, 0, 0}}, /* variable (Pkgs) each 2 (Ints) */ - {.info = {"_ALT", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_BBN", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_BCL", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}}, /* variable (Ints) */ - {.info = {"_BCM", 1, 0}}, - {.info = {"_BDN", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_BFS", 1, 0}}, - {.info = {"_BIF", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, - 9, - ACPI_RTYPE_STRING | ACPI_RTYPE_BUFFER, 4, 0}}, /* fixed (9 Int),(4 Str) */ - {.info = {"_BLT", 3, 0}}, - {.info = {"_BMC", 1, 0}}, - {.info = {"_BMD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}}, /* fixed (5 Int) */ - {.info = {"_BQC", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_BST", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0}}, /* fixed (4 Int) */ - {.info = {"_BTM", 1, ACPI_RTYPE_INTEGER}}, - {.info = {"_BTP", 1, 0}}, - {.info = {"_CBA", 0, ACPI_RTYPE_INTEGER}}, /* see PCI firmware spec 3.0 */ - {.info = {"_CID", 0, - ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING | ACPI_RTYPE_PACKAGE}}, - {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING, 0, 0, 0, 0}}, /* variable (Ints/Strs) */ - {.info = {"_CRS", 0, ACPI_RTYPE_BUFFER}}, - {.info = {"_CRT", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_CSD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}}, /* variable (1 Int(n), n-1 Int) */ - {.info = {"_CST", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_PKG_COUNT, - ACPI_RTYPE_BUFFER, 1, - ACPI_RTYPE_INTEGER, 3, 0}}, /* variable (1 Int(n), n Pkg (1 Buf/3 Int) */ - {.info = {"_DCK", 1, ACPI_RTYPE_INTEGER}}, - {.info = {"_DCS", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_DDC", 1, ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER}}, - {.info = {"_DDN", 0, ACPI_RTYPE_STRING}}, - {.info = {"_DGS", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_DIS", 0, 0}}, - {.info = {"_DMA", 0, ACPI_RTYPE_BUFFER}}, - {.info = {"_DOD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}}, /* variable (Ints) */ - {.info = {"_DOS", 1, 0}}, - {.info = {"_DSM", 4, ACPI_RTYPE_ALL}}, /* Must return a type, but it can be of any type */ - {.info = {"_DSS", 1, 0}}, - {.info = {"_DSW", 3, 0}}, - {.info = {"_EC_", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_EDL", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_EJ0", 1, 0}}, - {.info = {"_EJ1", 1, 0}}, - {.info = {"_EJ2", 1, 0}}, - {.info = {"_EJ3", 1, 0}}, - {.info = {"_EJ4", 1, 0}}, - {.info = {"_EJD", 0, ACPI_RTYPE_STRING}}, - {.info = {"_FDE", 0, ACPI_RTYPE_BUFFER}}, - {.info = {"_FDI", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 16, 0, 0, 0}}, /* fixed (16 Int) */ - {.info = {"_FDM", 1, 0}}, - {.info = {"_FIX", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}}, /* variable (Ints) */ - {.info = {"_GLK", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_GPD", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_GPE", 0, ACPI_RTYPE_INTEGER}}, /* _GPE method, not _GPE scope */ - {.info = {"_GSB", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_GTF", 0, ACPI_RTYPE_BUFFER}}, - {.info = {"_GTM", 0, ACPI_RTYPE_BUFFER}}, - {.info = {"_GTS", 1, 0}}, - {.info = {"_HID", 0, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING}}, - {.info = {"_HOT", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_HPP", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0}}, /* fixed (4 Int) */ +static const union acpi_predefined_info predefined_names[] = +{ + {{"_AC0", 0, ACPI_RTYPE_INTEGER}}, + {{"_AC1", 0, ACPI_RTYPE_INTEGER}}, + {{"_AC2", 0, ACPI_RTYPE_INTEGER}}, + {{"_AC3", 0, ACPI_RTYPE_INTEGER}}, + {{"_AC4", 0, ACPI_RTYPE_INTEGER}}, + {{"_AC5", 0, ACPI_RTYPE_INTEGER}}, + {{"_AC6", 0, ACPI_RTYPE_INTEGER}}, + {{"_AC7", 0, ACPI_RTYPE_INTEGER}}, + {{"_AC8", 0, ACPI_RTYPE_INTEGER}}, + {{"_AC9", 0, ACPI_RTYPE_INTEGER}}, + {{"_ADR", 0, ACPI_RTYPE_INTEGER}}, + {{"_AL0", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_AL1", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_AL2", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_AL3", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_AL4", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_AL5", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_AL6", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_AL7", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_AL8", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_AL9", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_ALC", 0, ACPI_RTYPE_INTEGER}}, + {{"_ALI", 0, ACPI_RTYPE_INTEGER}}, + {{"_ALP", 0, ACPI_RTYPE_INTEGER}}, + {{"_ALR", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each 2 (Ints) */ + {{{ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 2,0}, 0,0}}, + + {{"_ALT", 0, ACPI_RTYPE_INTEGER}}, + {{"_ART", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (1 Int(rev), n Pkg (2 Ref/11 Int) */ + {{{ACPI_PTYPE2_REV_FIXED, ACPI_RTYPE_REFERENCE, 2, ACPI_RTYPE_INTEGER}, + 11, 0}}, + + {{"_BBN", 0, ACPI_RTYPE_INTEGER}}, + {{"_BCL", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Ints) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0,0}, 0,0}}, + + {{"_BCM", 1, 0}}, + {{"_BCT", 1, ACPI_RTYPE_INTEGER}}, + {{"_BDN", 0, ACPI_RTYPE_INTEGER}}, + {{"_BFS", 1, 0}}, + {{"_BIF", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (9 Int),(4 Str) */ + {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 9, ACPI_RTYPE_STRING}, 4,0}}, + + {{"_BIX", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (16 Int),(4 Str) */ + {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 16, ACPI_RTYPE_STRING}, 4, + 0}}, + + {{"_BLT", 3, 0}}, + {{"_BMA", 1, ACPI_RTYPE_INTEGER}}, + {{"_BMC", 1, 0}}, + {{"_BMD", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (5 Int) */ + {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 5,0}, 0,0}}, + + {{"_BMS", 1, ACPI_RTYPE_INTEGER}}, + {{"_BQC", 0, ACPI_RTYPE_INTEGER}}, + {{"_BST", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (4 Int) */ + {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4,0}, 0,0}}, + + {{"_BTM", 1, ACPI_RTYPE_INTEGER}}, + {{"_BTP", 1, 0}}, + {{"_CBA", 0, ACPI_RTYPE_INTEGER}}, /* See PCI firmware spec 3.0 */ + {{"_CDM", 0, ACPI_RTYPE_INTEGER}}, + {{"_CID", 0, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING | ACPI_RTYPE_PACKAGE}}, /* Variable-length (Ints/Strs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING, 0,0}, 0,0}}, + + {{"_CRS", 0, ACPI_RTYPE_BUFFER}}, + {{"_CRT", 0, ACPI_RTYPE_INTEGER}}, + {{"_CSD", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (1 Int(n), n-1 Int) */ + {{{ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 0,0}, 0,0}}, + + {{"_CST", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (1 Int(n), n Pkg (1 Buf/3 Int) */ + {{{ACPI_PTYPE2_PKG_COUNT,ACPI_RTYPE_BUFFER, 1, ACPI_RTYPE_INTEGER}, 3,0}}, + + {{"_DCK", 1, ACPI_RTYPE_INTEGER}}, + {{"_DCS", 0, ACPI_RTYPE_INTEGER}}, + {{"_DDC", 1, ACPI_RTYPE_INTEGER | ACPI_RTYPE_BUFFER}}, + {{"_DDN", 0, ACPI_RTYPE_STRING}}, + {{"_DGS", 0, ACPI_RTYPE_INTEGER}}, + {{"_DIS", 0, 0}}, + {{"_DMA", 0, ACPI_RTYPE_BUFFER}}, + {{"_DOD", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Ints) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0,0}, 0,0}}, + + {{"_DOS", 1, 0}}, + {{"_DSM", 4, ACPI_RTYPE_ALL}}, /* Must return a type, but it can be of any type */ + {{"_DSS", 1, 0}}, + {{"_DSW", 3, 0}}, + {{"_DTI", 1, 0}}, + {{"_EC_", 0, ACPI_RTYPE_INTEGER}}, + {{"_EDL", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs)*/ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_EJ0", 1, 0}}, + {{"_EJ1", 1, 0}}, + {{"_EJ2", 1, 0}}, + {{"_EJ3", 1, 0}}, + {{"_EJ4", 1, 0}}, + {{"_EJD", 0, ACPI_RTYPE_STRING}}, + {{"_FDE", 0, ACPI_RTYPE_BUFFER}}, + {{"_FDI", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (16 Int) */ + {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 16,0}, 0,0}}, + + {{"_FDM", 1, 0}}, + {{"_FIF", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (4 Int) */ + {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0}, 0, 0}}, + + {{"_FIX", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Ints) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 0,0}, 0,0}}, + + {{"_FPS", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (1 Int(rev), n Pkg (5 Int) */ + {{{ACPI_PTYPE2_REV_FIXED, ACPI_RTYPE_INTEGER, 5, 0}, 0, 0}}, + + {{"_FSL", 1, 0}}, + {{"_FST", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (3 Int) */ + {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 3, 0}, 0, 0}}, + + {{"_GAI", 0, ACPI_RTYPE_INTEGER}}, + {{"_GHL", 0, ACPI_RTYPE_INTEGER}}, + {{"_GLK", 0, ACPI_RTYPE_INTEGER}}, + {{"_GPD", 0, ACPI_RTYPE_INTEGER}}, + {{"_GPE", 0, ACPI_RTYPE_INTEGER}}, /* _GPE method, not _GPE scope */ + {{"_GSB", 0, ACPI_RTYPE_INTEGER}}, + {{"_GTF", 0, ACPI_RTYPE_BUFFER}}, + {{"_GTM", 0, ACPI_RTYPE_BUFFER}}, + {{"_GTS", 1, 0}}, + {{"_HID", 0, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING}}, + {{"_HOT", 0, ACPI_RTYPE_INTEGER}}, + {{"_HPP", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (4 Int) */ + {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4,0}, 0,0}}, /* - * For _HPX, a single package is returned, containing a variable number of sub-packages. - * Each sub-package contains a PCI record setting. There are several different type of - * record settings, of different lengths, but all elements of all settings are Integers. + * For _HPX, a single package is returned, containing a Variable-length number + * of sub-packages. Each sub-package contains a PCI record setting. + * There are several different type of record settings, of different + * lengths, but all elements of all settings are Integers. */ - {.info = {"_HPX", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_MIN, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}}, /* variable (Pkgs) each (var Ints) */ - {.info = {"_IFT", 0, ACPI_RTYPE_INTEGER}}, /* see IPMI spec */ - {.info = {"_INI", 0, 0}}, - {.info = {"_IRC", 0, 0}}, - {.info = {"_LCK", 1, 0}}, - {.info = {"_LID", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_MAT", 0, ACPI_RTYPE_BUFFER}}, - {.info = {"_MLS", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_STRING, 2, 0, 0, 0}}, /* variable (Pkgs) each (2 Str) */ - {.info = {"_MSG", 1, 0}}, - {.info = {"_OFF", 0, 0}}, - {.info = {"_ON_", 0, 0}}, - {.info = {"_OS_", 0, ACPI_RTYPE_STRING}}, - {.info = {"_OSC", 4, ACPI_RTYPE_BUFFER}}, - {.info = {"_OST", 3, 0}}, - {.info = {"_PCL", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_PCT", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_BUFFER, 2, 0, 0, 0}}, /* fixed (2 Buf) */ - {.info = {"_PDC", 1, 0}}, - {.info = {"_PIC", 1, 0}}, - {.info = {"_PLD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_BUFFER, 0, 0, 0, 0}}, /* variable (Bufs) */ - {.info = {"_PPC", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_PPE", 0, ACPI_RTYPE_INTEGER}}, /* see dig64 spec */ - {.info = {"_PR0", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_PR1", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_PR2", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_PRS", 0, ACPI_RTYPE_BUFFER}}, + {{"_HPX", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each (var Ints) */ + {{{ACPI_PTYPE2_MIN, ACPI_RTYPE_INTEGER, 5,0}, 0,0}}, + + {{"_IFT", 0, ACPI_RTYPE_INTEGER}}, /* See IPMI spec */ + {{"_INI", 0, 0}}, + {{"_IRC", 0, 0}}, + {{"_LCK", 1, 0}}, + {{"_LID", 0, ACPI_RTYPE_INTEGER}}, + {{"_MAT", 0, ACPI_RTYPE_BUFFER}}, + {{"_MBM", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (8 Int) */ + {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 8, 0}, 0, 0}}, + + {{"_MLS", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each (2 Str) */ + {{{ACPI_PTYPE2, ACPI_RTYPE_STRING, 2,0}, 0,0}}, + + {{"_MSG", 1, 0}}, + {{"_MSM", 4, ACPI_RTYPE_INTEGER}}, + {{"_NTT", 0, ACPI_RTYPE_INTEGER}}, + {{"_OFF", 0, 0}}, + {{"_ON_", 0, 0}}, + {{"_OS_", 0, ACPI_RTYPE_STRING}}, + {{"_OSC", 4, ACPI_RTYPE_BUFFER}}, + {{"_OST", 3, 0}}, + {{"_PAI", 1, ACPI_RTYPE_INTEGER}}, + {{"_PCL", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_PCT", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (2 Buf) */ + {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_BUFFER, 2,0}, 0,0}}, + + {{"_PDC", 1, 0}}, + {{"_PDL", 0, ACPI_RTYPE_INTEGER}}, + {{"_PIC", 1, 0}}, + {{"_PIF", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (3 Int),(3 Str) */ + {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 3, ACPI_RTYPE_STRING}, 3, 0}}, + + {{"_PLD", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Bufs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_BUFFER, 0,0}, 0,0}}, + + {{"_PMC", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (11 Int),(3 Str) */ + {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 11, ACPI_RTYPE_STRING}, 3, + 0}}, + + {{"_PMD", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0}, 0, 0}}, + + {{"_PMM", 0, ACPI_RTYPE_INTEGER}}, + {{"_PPC", 0, ACPI_RTYPE_INTEGER}}, + {{"_PPE", 0, ACPI_RTYPE_INTEGER}}, /* See dig64 spec */ + {{"_PR0", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_PR1", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_PR2", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_PR3", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0}, 0, 0}}, + + {{"_PRL", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0}, 0, 0}}, + + {{"_PRS", 0, ACPI_RTYPE_BUFFER}}, /* - * For _PRT, many BIOSs reverse the 2nd and 3rd Package elements. This bug is so prevalent that there - * is code in the ACPICA Resource Manager to detect this and switch them back. For now, do not allow - * and issue a warning. To allow this and eliminate the warning, add the ACPI_RTYPE_REFERENCE - * type to the 2nd element (index 1) in the statement below. + * For _PRT, many BIOSs reverse the 3rd and 4th Package elements (Source + * and source_index). This bug is so prevalent that there is code in the + * ACPICA Resource Manager to detect this and switch them back. For now, + * do not allow and issue a warning. To allow this and eliminate the + * warning, add the ACPI_RTYPE_REFERENCE type to the 4th element (index 3) + * in the statement below. */ - {.info = {"_PRT", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_FIXED, 4, - ACPI_RTYPE_INTEGER, - ACPI_RTYPE_INTEGER, - ACPI_RTYPE_INTEGER | ACPI_RTYPE_REFERENCE, ACPI_RTYPE_INTEGER}}, /* variable (Pkgs) each (4): Int,Int,Int/Ref,Int */ - - {.info = {"_PRW", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_OPTION, 2, - ACPI_RTYPE_INTEGER | - ACPI_RTYPE_PACKAGE, - ACPI_RTYPE_INTEGER, ACPI_RTYPE_REFERENCE, 0}}, /* variable (Pkgs) each: Pkg/Int,Int,[variable Refs] (Pkg is Ref/Int) */ - - {.info = {"_PS0", 0, 0}}, - {.info = {"_PS1", 0, 0}}, - {.info = {"_PS2", 0, 0}}, - {.info = {"_PS3", 0, 0}}, - {.info = {"_PSC", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_PSD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 0, 0, 0, 0}}, /* variable (Pkgs) each (5 Int) with count */ - {.info = {"_PSL", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_PSR", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_PSS", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 6, 0, 0, 0}}, /* variable (Pkgs) each (6 Int) */ - {.info = {"_PSV", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_PSW", 1, 0}}, - {.info = {"_PTC", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_BUFFER, 2, 0, 0, 0}}, /* fixed (2 Buf) */ - {.info = {"_PTS", 1, 0}}, - {.info = {"_PXM", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_REG", 2, 0}}, - {.info = {"_REV", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_RMV", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_ROM", 2, ACPI_RTYPE_BUFFER}}, - {.info = {"_RTV", 0, ACPI_RTYPE_INTEGER}}, + {{"_PRT", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each (4): Int,Int,Int/Ref,Int */ + {{{ACPI_PTYPE2_FIXED, 4, ACPI_RTYPE_INTEGER,ACPI_RTYPE_INTEGER}, + ACPI_RTYPE_INTEGER | ACPI_RTYPE_REFERENCE, + ACPI_RTYPE_INTEGER}}, + + {{"_PRW", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each: Pkg/Int,Int,[Variable-length Refs] (Pkg is Ref/Int) */ + {{{ACPI_PTYPE1_OPTION, 2, ACPI_RTYPE_INTEGER | ACPI_RTYPE_PACKAGE, + ACPI_RTYPE_INTEGER}, ACPI_RTYPE_REFERENCE,0}}, + + {{"_PS0", 0, 0}}, + {{"_PS1", 0, 0}}, + {{"_PS2", 0, 0}}, + {{"_PS3", 0, 0}}, + {{"_PSC", 0, ACPI_RTYPE_INTEGER}}, + {{"_PSD", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each (5 Int) with count */ + {{{ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER,0,0}, 0,0}}, + + {{"_PSL", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_PSR", 0, ACPI_RTYPE_INTEGER}}, + {{"_PSS", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each (6 Int) */ + {{{ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 6,0}, 0,0}}, + + {{"_PSV", 0, ACPI_RTYPE_INTEGER}}, + {{"_PSW", 1, 0}}, + {{"_PTC", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (2 Buf) */ + {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_BUFFER, 2,0}, 0,0}}, + + {{"_PTP", 2, ACPI_RTYPE_INTEGER}}, + {{"_PTS", 1, 0}}, + {{"_PUR", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (2 Int) */ + {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 2, 0}, 0, 0}}, + + {{"_PXM", 0, ACPI_RTYPE_INTEGER}}, + {{"_REG", 2, 0}}, + {{"_REV", 0, ACPI_RTYPE_INTEGER}}, + {{"_RMV", 0, ACPI_RTYPE_INTEGER}}, + {{"_ROM", 2, ACPI_RTYPE_BUFFER}}, + {{"_RTV", 0, ACPI_RTYPE_INTEGER}}, /* - * For _S0_ through _S5_, the ACPI spec defines a return Package containing 1 Integer, - * but most DSDTs have it wrong - 2,3, or 4 integers. Allow this by making the objects "variable length", - * but all elements must be Integers. + * For _S0_ through _S5_, the ACPI spec defines a return Package + * containing 1 Integer, but most DSDTs have it wrong - 2,3, or 4 integers. + * Allow this by making the objects "Variable-length length", but all elements + * must be Integers. */ - {.info = {"_S0_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */ - {.info = {"_S1_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */ - {.info = {"_S2_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */ - {.info = {"_S3_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */ - {.info = {"_S4_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */ - {.info = {"_S5_", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1, 0, 0, 0}}, /* fixed (1 Int) */ - - {.info = {"_S1D", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_S2D", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_S3D", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_S4D", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_S0W", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_S1W", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_S2W", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_S3W", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_S4W", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_SBS", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_SCP", 0x13, 0}}, /* Acpi 1.0 allowed 1 arg. Acpi 3.0 expanded to 3 args. Allow both. */ - /* Note: the 3-arg definition may be removed for ACPI 4.0 */ - {.info = {"_SDD", 1, 0}}, - {.info = {"_SEG", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_SLI", 0, ACPI_RTYPE_BUFFER}}, - {.info = {"_SPD", 1, ACPI_RTYPE_INTEGER}}, - {.info = {"_SRS", 1, 0}}, - {.info = {"_SRV", 0, ACPI_RTYPE_INTEGER}}, /* see IPMI spec */ - {.info = {"_SST", 1, 0}}, - {.info = {"_STA", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_STM", 3, 0}}, - {.info = {"_STR", 0, ACPI_RTYPE_BUFFER}}, - {.info = {"_SUN", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_SWS", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_TC1", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_TC2", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_TMP", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_TPC", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_TPT", 1, 0}}, - {.info = {"_TRT", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_REFERENCE, 2, - ACPI_RTYPE_INTEGER, 6, 0}}, /* variable (Pkgs) each 2_ref/6_int */ - {.info = {"_TSD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2_COUNT, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}}, /* variable (Pkgs) each 5_int with count */ - {.info = {"_TSP", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_TSS", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 5, 0, 0, 0}}, /* variable (Pkgs) each 5_int */ - {.info = {"_TST", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_TTS", 1, 0}}, - {.info = {"_TZD", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0, 0, 0, 0}}, /* variable (Refs) */ - {.info = {"_TZM", 0, ACPI_RTYPE_REFERENCE}}, - {.info = {"_TZP", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_UID", 0, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING}}, - {.info = {"_UPC", 0, ACPI_RTYPE_PACKAGE}}, {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4, 0, 0, 0}}, /* fixed (4 Int) */ - {.info = {"_UPD", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_UPP", 0, ACPI_RTYPE_INTEGER}}, - {.info = {"_VPO", 0, ACPI_RTYPE_INTEGER}}, + {{"_S0_", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (1 Int) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1,0}, 0,0}}, + + {{"_S1_", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (1 Int) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1,0}, 0,0}}, + + {{"_S2_", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (1 Int) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1,0}, 0,0}}, + + {{"_S3_", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (1 Int) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1,0}, 0,0}}, + + {{"_S4_", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (1 Int) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1,0}, 0,0}}, + + {{"_S5_", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (1 Int) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_INTEGER, 1,0}, 0,0}}, + + {{"_S1D", 0, ACPI_RTYPE_INTEGER}}, + {{"_S2D", 0, ACPI_RTYPE_INTEGER}}, + {{"_S3D", 0, ACPI_RTYPE_INTEGER}}, + {{"_S4D", 0, ACPI_RTYPE_INTEGER}}, + {{"_S0W", 0, ACPI_RTYPE_INTEGER}}, + {{"_S1W", 0, ACPI_RTYPE_INTEGER}}, + {{"_S2W", 0, ACPI_RTYPE_INTEGER}}, + {{"_S3W", 0, ACPI_RTYPE_INTEGER}}, + {{"_S4W", 0, ACPI_RTYPE_INTEGER}}, + {{"_SBS", 0, ACPI_RTYPE_INTEGER}}, + {{"_SCP", 0x13, 0}}, /* Acpi 1.0 allowed 1 arg. Acpi 3.0 expanded to 3 args. Allow both. */ + /* Note: the 3-arg definition may be removed for ACPI 4.0 */ + {{"_SDD", 1, 0}}, + {{"_SEG", 0, ACPI_RTYPE_INTEGER}}, + {{"_SHL", 1, ACPI_RTYPE_INTEGER}}, + {{"_SLI", 0, ACPI_RTYPE_BUFFER}}, + {{"_SPD", 1, ACPI_RTYPE_INTEGER}}, + {{"_SRS", 1, 0}}, + {{"_SRV", 0, ACPI_RTYPE_INTEGER}}, /* See IPMI spec */ + {{"_SST", 1, 0}}, + {{"_STA", 0, ACPI_RTYPE_INTEGER}}, + {{"_STM", 3, 0}}, + {{"_STP", 2, ACPI_RTYPE_INTEGER}}, + {{"_STR", 0, ACPI_RTYPE_BUFFER}}, + {{"_STV", 2, ACPI_RTYPE_INTEGER}}, + {{"_SUN", 0, ACPI_RTYPE_INTEGER}}, + {{"_SWS", 0, ACPI_RTYPE_INTEGER}}, + {{"_TC1", 0, ACPI_RTYPE_INTEGER}}, + {{"_TC2", 0, ACPI_RTYPE_INTEGER}}, + {{"_TIP", 1, ACPI_RTYPE_INTEGER}}, + {{"_TIV", 1, ACPI_RTYPE_INTEGER}}, + {{"_TMP", 0, ACPI_RTYPE_INTEGER}}, + {{"_TPC", 0, ACPI_RTYPE_INTEGER}}, + {{"_TPT", 1, 0}}, + {{"_TRT", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each 2_ref/6_int */ + {{{ACPI_PTYPE2, ACPI_RTYPE_REFERENCE, 2, ACPI_RTYPE_INTEGER}, 6, 0}}, + + {{"_TSD", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each 5_int with count */ + {{{ACPI_PTYPE2_COUNT,ACPI_RTYPE_INTEGER, 5,0}, 0,0}}, + + {{"_TSP", 0, ACPI_RTYPE_INTEGER}}, + {{"_TSS", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Pkgs) each 5_int */ + {{{ACPI_PTYPE2, ACPI_RTYPE_INTEGER, 5,0}, 0,0}}, + + {{"_TST", 0, ACPI_RTYPE_INTEGER}}, + {{"_TTS", 1, 0}}, + {{"_TZD", 0, ACPI_RTYPE_PACKAGE}}, /* Variable-length (Refs) */ + {{{ACPI_PTYPE1_VAR, ACPI_RTYPE_REFERENCE, 0,0}, 0,0}}, + + {{"_TZM", 0, ACPI_RTYPE_REFERENCE}}, + {{"_TZP", 0, ACPI_RTYPE_INTEGER}}, + {{"_UID", 0, ACPI_RTYPE_INTEGER | ACPI_RTYPE_STRING}}, + {{"_UPC", 0, ACPI_RTYPE_PACKAGE}}, /* Fixed-length (4 Int) */ + {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 4,0}, 0,0}}, + + {{"_UPD", 0, ACPI_RTYPE_INTEGER}}, + {{"_UPP", 0, ACPI_RTYPE_INTEGER}}, + {{"_VPO", 0, ACPI_RTYPE_INTEGER}}, /* Acpi 1.0 defined _WAK with no return value. Later, it was changed to return a package */ - {.info = {"_WAK", 1, ACPI_RTYPE_NONE | ACPI_RTYPE_INTEGER | ACPI_RTYPE_PACKAGE}}, - {.ret_info = {ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 2, 0, 0, 0}}, /* fixed (2 Int), but is optional */ - {.ret_info = {0, 0, 0, 0, 0, 0}} /* Table terminator */ + {{"_WAK", 1, ACPI_RTYPE_NONE | ACPI_RTYPE_INTEGER | ACPI_RTYPE_PACKAGE}}, + {{{ACPI_PTYPE1_FIXED, ACPI_RTYPE_INTEGER, 2,0}, 0,0}}, /* Fixed-length (2 Int), but is optional */ + + {{{0,0,0,0}, 0,0}} /* Table terminator */ }; #if 0 /* Not implemented */ -{ -"_WDG", 0, ACPI_RTYPE_BUFFER}, /* MS Extension */ + {{"_WDG", 0, ACPI_RTYPE_BUFFER}}, /* MS Extension */ + {{"_WED", 1, ACPI_RTYPE_PACKAGE}}, /* MS Extension */ -{ -"_WED", 1, ACPI_RTYPE_PACKAGE}, /* MS Extension */ + /* This is an internally implemented control method, no need to check */ + {{"_OSI", 1, ACPI_RTYPE_INTEGER}}, - /* This is an internally implemented control method, no need to check */ -{ -"_OSI", 1, ACPI_RTYPE_INTEGER}, + /* TBD: */ + + _PRT - currently ignore reversed entries. attempt to fix here? + think about possibly fixing package elements like _BIF, etc. +#endif - /* TBD: */ - _PRT - currently ignore reversed entries.attempt to fix here ? - think about code that attempts to fix package elements like _BIF, etc. #endif #endif diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h index 897810ba0ccc..863a264b829e 100644 --- a/drivers/acpi/acpica/acutils.h +++ b/drivers/acpi/acpica/acutils.h @@ -324,26 +324,30 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node, acpi_status acpi_ut_evaluate_numeric_object(char *object_name, struct acpi_namespace_node *device_node, - acpi_integer * address); + acpi_integer *value); acpi_status -acpi_ut_execute_HID(struct acpi_namespace_node *device_node, - struct acpica_device_id *hid); +acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 *status_flags); acpi_status -acpi_ut_execute_CID(struct acpi_namespace_node *device_node, - struct acpi_compatible_id_list **return_cid_list); +acpi_ut_execute_power_methods(struct acpi_namespace_node *device_node, + const char **method_names, + u8 method_count, u8 *out_values); +/* + * utids - device ID support + */ acpi_status -acpi_ut_execute_STA(struct acpi_namespace_node *device_node, - u32 * status_flags); +acpi_ut_execute_HID(struct acpi_namespace_node *device_node, + struct acpica_device_id **return_id); acpi_status acpi_ut_execute_UID(struct acpi_namespace_node *device_node, - struct acpica_device_id *uid); + struct acpica_device_id **return_id); acpi_status -acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest); +acpi_ut_execute_CID(struct acpi_namespace_node *device_node, + struct acpica_device_id_list **return_cid_list); /* * utlock - reader/writer locks @@ -445,6 +449,8 @@ acpi_ut_short_divide(acpi_integer in_dividend, */ const char *acpi_ut_validate_exception(acpi_status status); +u8 acpi_ut_is_pci_root_bridge(char *id); + u8 acpi_ut_is_aml_table(struct acpi_table_header *table); acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id); @@ -469,6 +475,12 @@ u8 acpi_ut_valid_acpi_char(char character, u32 position); acpi_status acpi_ut_strtoul64(char *string, u32 base, acpi_integer * ret_integer); +void ACPI_INTERNAL_VAR_XFACE +acpi_ut_predefined_warning(const char *module_name, + u32 line_number, + char *pathname, + u8 node_flags, const char *format, ...); + /* Values for Base above (16=Hex, 10=Decimal) */ #define ACPI_ANY_BASE 0 diff --git a/drivers/acpi/acpica/amlcode.h b/drivers/acpi/acpica/amlcode.h index 067f967eb389..4940249f2524 100644 --- a/drivers/acpi/acpica/amlcode.h +++ b/drivers/acpi/acpica/amlcode.h @@ -404,6 +404,7 @@ typedef enum { REGION_SMBUS, REGION_CMOS, REGION_PCI_BAR, + REGION_IPMI, REGION_DATA_TABLE, /* Internal use only */ REGION_FIXED_HW = 0x7F } AML_REGION_TYPES; diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c index 53e27bc5a734..54a225e56a64 100644 --- a/drivers/acpi/acpica/dsfield.c +++ b/drivers/acpi/acpica/dsfield.c @@ -123,9 +123,12 @@ acpi_ds_create_buffer_field(union acpi_parse_object *op, flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | ACPI_NS_ERROR_IF_FOUND; - /* Mark node temporary if we are executing a method */ - - if (walk_state->method_node) { + /* + * Mark node temporary if we are executing a normal control + * method. (Don't mark if this is a module-level code method) + */ + if (walk_state->method_node && + !(walk_state->parse_flags & ACPI_PARSE_MODULE_LEVEL)) { flags |= ACPI_NS_TEMPORARY; } @@ -456,9 +459,12 @@ acpi_ds_init_field_objects(union acpi_parse_object *op, flags = ACPI_NS_NO_UPSEARCH | ACPI_NS_DONT_OPEN_SCOPE | ACPI_NS_ERROR_IF_FOUND; - /* Mark node(s) temporary if we are executing a method */ - - if (walk_state->method_node) { + /* + * Mark node(s) temporary if we are executing a normal control + * method. (Don't mark if this is a module-level code method) + */ + if (walk_state->method_node && + !(walk_state->parse_flags & ACPI_PARSE_MODULE_LEVEL)) { flags |= ACPI_NS_TEMPORARY; } diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c index 14b8b8ed8023..567a4899a018 100644 --- a/drivers/acpi/acpica/dsmethod.c +++ b/drivers/acpi/acpica/dsmethod.c @@ -578,10 +578,15 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc, } /* - * Delete any namespace objects created anywhere within - * the namespace by the execution of this method + * Delete any namespace objects created anywhere within the + * namespace by the execution of this method. Unless this method + * is a module-level executable code method, in which case we + * want make the objects permanent. */ - acpi_ns_delete_namespace_by_owner(method_desc->method.owner_id); + if (!(method_desc->method.flags & AOPOBJ_MODULE_LEVEL)) { + acpi_ns_delete_namespace_by_owner(method_desc->method. + owner_id); + } } /* Decrement the thread count on the method */ @@ -622,7 +627,9 @@ acpi_ds_terminate_control_method(union acpi_operand_object *method_desc, /* No more threads, we can free the owner_id */ - acpi_ut_release_owner_id(&method_desc->method.owner_id); + if (!(method_desc->method.flags & AOPOBJ_MODULE_LEVEL)) { + acpi_ut_release_owner_id(&method_desc->method.owner_id); + } } return_VOID; diff --git a/drivers/acpi/acpica/dsmthdat.c b/drivers/acpi/acpica/dsmthdat.c index 22b1a3ce2c94..7d077bb2f525 100644 --- a/drivers/acpi/acpica/dsmthdat.c +++ b/drivers/acpi/acpica/dsmthdat.c @@ -433,10 +433,10 @@ acpi_ds_method_data_get_value(u8 type, case ACPI_REFCLASS_LOCAL: - ACPI_ERROR((AE_INFO, - "Uninitialized Local[%d] at node %p", - index, node)); - + /* + * No error message for this case, will be trapped again later to + * detect and ignore cases of Store(local_x,local_x) + */ return_ACPI_STATUS(AE_AML_UNINITIALIZED_LOCAL); default: diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c index 02e6caad4a76..507e1f0bbdfd 100644 --- a/drivers/acpi/acpica/dsobject.c +++ b/drivers/acpi/acpica/dsobject.c @@ -482,14 +482,27 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, if (arg) { /* * num_elements was exhausted, but there are remaining elements in the - * package_list. + * package_list. Truncate the package to num_elements. * * Note: technically, this is an error, from ACPI spec: "It is an error * for NumElements to be less than the number of elements in the - * PackageList". However, for now, we just print an error message and - * no exception is returned. + * PackageList". However, we just print an error message and + * no exception is returned. This provides Windows compatibility. Some + * BIOSs will alter the num_elements on the fly, creating this type + * of ill-formed package object. */ while (arg) { + /* + * We must delete any package elements that were created earlier + * and are not going to be used because of the package truncation. + */ + if (arg->common.node) { + acpi_ut_remove_reference(ACPI_CAST_PTR + (union + acpi_operand_object, + arg->common.node)); + arg->common.node = NULL; + } /* Find out how many elements there really are */ @@ -498,7 +511,7 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, } ACPI_WARNING((AE_INFO, - "Package List length (%X) larger than NumElements count (%X), truncated\n", + "Package List length (0x%X) larger than NumElements count (0x%X), truncated\n", i, element_count)); } else if (i < element_count) { /* @@ -506,7 +519,7 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, * Note: this is not an error, the package is padded out with NULLs. */ ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Package List length (%X) smaller than NumElements count (%X), padded with null elements\n", + "Package List length (0x%X) smaller than NumElements count (0x%X), padded with null elements\n", i, element_count)); } diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c index 584d766e6f12..b79978f7bc71 100644 --- a/drivers/acpi/acpica/dsopcode.c +++ b/drivers/acpi/acpica/dsopcode.c @@ -397,6 +397,30 @@ acpi_status acpi_ds_get_region_arguments(union acpi_operand_object *obj_desc) status = acpi_ds_execute_arguments(node, acpi_ns_get_parent_node(node), extra_desc->extra.aml_length, extra_desc->extra.aml_start); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Validate the region address/length via the host OS */ + + status = acpi_os_validate_address(obj_desc->region.space_id, + obj_desc->region.address, + (acpi_size) obj_desc->region.length, + acpi_ut_get_node_name(node)); + + if (ACPI_FAILURE(status)) { + /* + * Invalid address/length. We will emit an error message and mark + * the region as invalid, so that it will cause an additional error if + * it is ever used. Then return AE_OK. + */ + ACPI_EXCEPTION((AE_INFO, status, + "During address validation of OpRegion [%4.4s]", + node->name.ascii)); + obj_desc->common.flags |= AOPOBJ_INVALID; + status = AE_OK; + } + return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c index 3023ceaa8d54..6de3a99d4cd4 100644 --- a/drivers/acpi/acpica/dswload.c +++ b/drivers/acpi/acpica/dswload.c @@ -581,21 +581,6 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, if ((!(walk_state->op_info->flags & AML_NSOPCODE) && (walk_state->opcode != AML_INT_NAMEPATH_OP)) || (!(walk_state->op_info->flags & AML_NAMED))) { -#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE - if ((walk_state->op_info->class == AML_CLASS_EXECUTE) || - (walk_state->op_info->class == AML_CLASS_CONTROL)) { - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Begin/EXEC: %s (fl %8.8X)\n", - walk_state->op_info->name, - walk_state->op_info->flags)); - - /* Executing a type1 or type2 opcode outside of a method */ - - status = - acpi_ds_exec_begin_op(walk_state, out_op); - return_ACPI_STATUS(status); - } -#endif return_ACPI_STATUS(AE_OK); } @@ -768,7 +753,13 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, /* Execution mode, node cannot already exist, node is temporary */ - flags |= (ACPI_NS_ERROR_IF_FOUND | ACPI_NS_TEMPORARY); + flags |= ACPI_NS_ERROR_IF_FOUND; + + if (! + (walk_state-> + parse_flags & ACPI_PARSE_MODULE_LEVEL)) { + flags |= ACPI_NS_TEMPORARY; + } } /* Add new entry or lookup existing entry */ @@ -851,24 +842,6 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state) /* Check if opcode had an associated namespace object */ if (!(walk_state->op_info->flags & AML_NSOBJECT)) { -#ifndef ACPI_NO_METHOD_EXECUTION -#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE - /* No namespace object. Executable opcode? */ - - if ((walk_state->op_info->class == AML_CLASS_EXECUTE) || - (walk_state->op_info->class == AML_CLASS_CONTROL)) { - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "End/EXEC: %s (fl %8.8X)\n", - walk_state->op_info->name, - walk_state->op_info->flags)); - - /* Executing a type1 or type2 opcode outside of a method */ - - status = acpi_ds_exec_end_op(walk_state); - return_ACPI_STATUS(status); - } -#endif -#endif return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index b9d8ee69ca6c..afacf4416c73 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -424,8 +424,8 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) /* Read the Status Register */ status = - acpi_read(&status_reg, - &gpe_register_info->status_address); + acpi_hw_read(&status_reg, + &gpe_register_info->status_address); if (ACPI_FAILURE(status)) { goto unlock_and_exit; } @@ -433,8 +433,8 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) /* Read the Enable Register */ status = - acpi_read(&enable_reg, - &gpe_register_info->enable_address); + acpi_hw_read(&enable_reg, + &gpe_register_info->enable_address); if (ACPI_FAILURE(status)) { goto unlock_and_exit; } diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c index 7b3463639422..a60aaa7635f3 100644 --- a/drivers/acpi/acpica/evgpeblk.c +++ b/drivers/acpi/acpica/evgpeblk.c @@ -843,14 +843,14 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block) /* Disable all GPEs within this register */ - status = acpi_write(0x00, &this_register->enable_address); + status = acpi_hw_write(0x00, &this_register->enable_address); if (ACPI_FAILURE(status)) { goto error_exit; } /* Clear any pending GPE events within this register */ - status = acpi_write(0xFF, &this_register->status_address); + status = acpi_hw_write(0xFF, &this_register->status_address); if (ACPI_FAILURE(status)) { goto error_exit; } diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c index 284a7becbe96..cf29c4953028 100644 --- a/drivers/acpi/acpica/evrgnini.c +++ b/drivers/acpi/acpica/evrgnini.c @@ -50,8 +50,6 @@ ACPI_MODULE_NAME("evrgnini") /* Local prototypes */ -static u8 acpi_ev_match_pci_root_bridge(char *id); - static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node); /******************************************************************************* @@ -332,37 +330,6 @@ acpi_ev_pci_config_region_setup(acpi_handle handle, /******************************************************************************* * - * FUNCTION: acpi_ev_match_pci_root_bridge - * - * PARAMETERS: Id - The HID/CID in string format - * - * RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge - * - * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID. - * - ******************************************************************************/ - -static u8 acpi_ev_match_pci_root_bridge(char *id) -{ - - /* - * Check if this is a PCI root. - * ACPI 3.0+: check for a PCI Express root also. - */ - if (!(ACPI_STRNCMP(id, - PCI_ROOT_HID_STRING, - sizeof(PCI_ROOT_HID_STRING))) || - !(ACPI_STRNCMP(id, - PCI_EXPRESS_ROOT_HID_STRING, - sizeof(PCI_EXPRESS_ROOT_HID_STRING)))) { - return (TRUE); - } - - return (FALSE); -} - -/******************************************************************************* - * * FUNCTION: acpi_ev_is_pci_root_bridge * * PARAMETERS: Node - Device node being examined @@ -377,9 +344,10 @@ static u8 acpi_ev_match_pci_root_bridge(char *id) static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node) { acpi_status status; - struct acpica_device_id hid; - struct acpi_compatible_id_list *cid; + struct acpica_device_id *hid; + struct acpica_device_id_list *cid; u32 i; + u8 match; /* Get the _HID and check for a PCI Root Bridge */ @@ -388,7 +356,10 @@ static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node) return (FALSE); } - if (acpi_ev_match_pci_root_bridge(hid.value)) { + match = acpi_ut_is_pci_root_bridge(hid->string); + ACPI_FREE(hid); + + if (match) { return (TRUE); } @@ -402,7 +373,7 @@ static u8 acpi_ev_is_pci_root_bridge(struct acpi_namespace_node *node) /* Check all _CIDs in the returned list */ for (i = 0; i < cid->count; i++) { - if (acpi_ev_match_pci_root_bridge(cid->id[i].value)) { + if (acpi_ut_is_pci_root_bridge(cid->ids[i].string)) { ACPI_FREE(cid); return (TRUE); } diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c index 277fd609611a..24afef81af39 100644 --- a/drivers/acpi/acpica/exconfig.c +++ b/drivers/acpi/acpica/exconfig.c @@ -110,8 +110,15 @@ acpi_ex_add_table(u32 table_index, if (ACPI_FAILURE(status)) { acpi_ut_remove_reference(obj_desc); *ddb_handle = NULL; + return_ACPI_STATUS(status); } + /* Execute any module-level code that was found in the table */ + + acpi_ex_exit_interpreter(); + acpi_ns_exec_module_code_list(); + acpi_ex_enter_interpreter(); + return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c index ec524614e708..de3446372ddc 100644 --- a/drivers/acpi/acpica/exdump.c +++ b/drivers/acpi/acpica/exdump.c @@ -418,9 +418,9 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc, case ACPI_EXD_REFERENCE: acpi_ex_out_string("Class Name", - (char *) - acpi_ut_get_reference_name - (obj_desc)); + ACPI_CAST_PTR(char, + acpi_ut_get_reference_name + (obj_desc))); acpi_ex_dump_reference_obj(obj_desc); break; diff --git a/drivers/acpi/acpica/exfield.c b/drivers/acpi/acpica/exfield.c index 546dcdd86785..0b33d6c887b9 100644 --- a/drivers/acpi/acpica/exfield.c +++ b/drivers/acpi/acpica/exfield.c @@ -72,6 +72,7 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, union acpi_operand_object *buffer_desc; acpi_size length; void *buffer; + u32 function; ACPI_FUNCTION_TRACE_PTR(ex_read_data_from_field, obj_desc); @@ -97,13 +98,27 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, } } else if ((obj_desc->common.type == ACPI_TYPE_LOCAL_REGION_FIELD) && (obj_desc->field.region_obj->region.space_id == - ACPI_ADR_SPACE_SMBUS)) { + ACPI_ADR_SPACE_SMBUS + || obj_desc->field.region_obj->region.space_id == + ACPI_ADR_SPACE_IPMI)) { /* - * This is an SMBus read. We must create a buffer to hold the data - * and directly access the region handler. + * This is an SMBus or IPMI read. We must create a buffer to hold + * the data and then directly access the region handler. + * + * Note: Smbus protocol value is passed in upper 16-bits of Function */ - buffer_desc = - acpi_ut_create_buffer_object(ACPI_SMBUS_BUFFER_SIZE); + if (obj_desc->field.region_obj->region.space_id == + ACPI_ADR_SPACE_SMBUS) { + length = ACPI_SMBUS_BUFFER_SIZE; + function = + ACPI_READ | (obj_desc->field.attribute << 16); + } else { /* IPMI */ + + length = ACPI_IPMI_BUFFER_SIZE; + function = ACPI_READ; + } + + buffer_desc = acpi_ut_create_buffer_object(length); if (!buffer_desc) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -112,16 +127,13 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, acpi_ex_acquire_global_lock(obj_desc->common_field.field_flags); - /* - * Perform the read. - * Note: Smbus protocol value is passed in upper 16-bits of Function - */ + /* Call the region handler for the read */ + status = acpi_ex_access_region(obj_desc, 0, ACPI_CAST_PTR(acpi_integer, buffer_desc-> buffer.pointer), - ACPI_READ | (obj_desc->field. - attribute << 16)); + function); acpi_ex_release_global_lock(obj_desc->common_field.field_flags); goto exit; } @@ -212,6 +224,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, u32 length; void *buffer; union acpi_operand_object *buffer_desc; + u32 function; ACPI_FUNCTION_TRACE_PTR(ex_write_data_to_field, obj_desc); @@ -234,39 +247,56 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, } } else if ((obj_desc->common.type == ACPI_TYPE_LOCAL_REGION_FIELD) && (obj_desc->field.region_obj->region.space_id == - ACPI_ADR_SPACE_SMBUS)) { + ACPI_ADR_SPACE_SMBUS + || obj_desc->field.region_obj->region.space_id == + ACPI_ADR_SPACE_IPMI)) { /* - * This is an SMBus write. We will bypass the entire field mechanism - * and handoff the buffer directly to the handler. + * This is an SMBus or IPMI write. We will bypass the entire field + * mechanism and handoff the buffer directly to the handler. For + * these address spaces, the buffer is bi-directional; on a write, + * return data is returned in the same buffer. + * + * Source must be a buffer of sufficient size: + * ACPI_SMBUS_BUFFER_SIZE or ACPI_IPMI_BUFFER_SIZE. * - * Source must be a buffer of sufficient size (ACPI_SMBUS_BUFFER_SIZE). + * Note: SMBus protocol type is passed in upper 16-bits of Function */ if (source_desc->common.type != ACPI_TYPE_BUFFER) { ACPI_ERROR((AE_INFO, - "SMBus write requires Buffer, found type %s", + "SMBus or IPMI write requires Buffer, found type %s", acpi_ut_get_object_type_name(source_desc))); return_ACPI_STATUS(AE_AML_OPERAND_TYPE); } - if (source_desc->buffer.length < ACPI_SMBUS_BUFFER_SIZE) { + if (obj_desc->field.region_obj->region.space_id == + ACPI_ADR_SPACE_SMBUS) { + length = ACPI_SMBUS_BUFFER_SIZE; + function = + ACPI_WRITE | (obj_desc->field.attribute << 16); + } else { /* IPMI */ + + length = ACPI_IPMI_BUFFER_SIZE; + function = ACPI_WRITE; + } + + if (source_desc->buffer.length < length) { ACPI_ERROR((AE_INFO, - "SMBus write requires Buffer of length %X, found length %X", - ACPI_SMBUS_BUFFER_SIZE, - source_desc->buffer.length)); + "SMBus or IPMI write requires Buffer of length %X, found length %X", + length, source_desc->buffer.length)); return_ACPI_STATUS(AE_AML_BUFFER_LIMIT); } - buffer_desc = - acpi_ut_create_buffer_object(ACPI_SMBUS_BUFFER_SIZE); + /* Create the bi-directional buffer */ + + buffer_desc = acpi_ut_create_buffer_object(length); if (!buffer_desc) { return_ACPI_STATUS(AE_NO_MEMORY); } buffer = buffer_desc->buffer.pointer; - ACPI_MEMCPY(buffer, source_desc->buffer.pointer, - ACPI_SMBUS_BUFFER_SIZE); + ACPI_MEMCPY(buffer, source_desc->buffer.pointer, length); /* Lock entire transaction if requested */ @@ -275,12 +305,10 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, /* * Perform the write (returns status and perhaps data in the * same buffer) - * Note: SMBus protocol type is passed in upper 16-bits of Function. */ status = acpi_ex_access_region(obj_desc, 0, (acpi_integer *) buffer, - ACPI_WRITE | (obj_desc->field. - attribute << 16)); + function); acpi_ex_release_global_lock(obj_desc->common_field.field_flags); *result_desc = buffer_desc; diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c index d4075b821021..d7b3b418fb45 100644 --- a/drivers/acpi/acpica/exfldio.c +++ b/drivers/acpi/acpica/exfldio.c @@ -113,13 +113,20 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc, } } + /* Exit if Address/Length have been disallowed by the host OS */ + + if (rgn_desc->common.flags & AOPOBJ_INVALID) { + return_ACPI_STATUS(AE_AML_ILLEGAL_ADDRESS); + } + /* - * Exit now for SMBus address space, it has a non-linear address space + * Exit now for SMBus or IPMI address space, it has a non-linear address space * and the request cannot be directly validated */ - if (rgn_desc->region.space_id == ACPI_ADR_SPACE_SMBUS) { + if (rgn_desc->region.space_id == ACPI_ADR_SPACE_SMBUS || + rgn_desc->region.space_id == ACPI_ADR_SPACE_IPMI) { - /* SMBus has a non-linear address space */ + /* SMBus or IPMI has a non-linear address space */ return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/acpica/exstorob.c b/drivers/acpi/acpica/exstorob.c index 67340cc70142..257706e7734f 100644 --- a/drivers/acpi/acpica/exstorob.c +++ b/drivers/acpi/acpica/exstorob.c @@ -70,6 +70,12 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, ACPI_FUNCTION_TRACE_PTR(ex_store_buffer_to_buffer, source_desc); + /* If Source and Target are the same, just return */ + + if (source_desc == target_desc) { + return_ACPI_STATUS(AE_OK); + } + /* We know that source_desc is a buffer by now */ buffer = ACPI_CAST_PTR(u8, source_desc->buffer.pointer); @@ -161,6 +167,12 @@ acpi_ex_store_string_to_string(union acpi_operand_object *source_desc, ACPI_FUNCTION_TRACE_PTR(ex_store_string_to_string, source_desc); + /* If Source and Target are the same, just return */ + + if (source_desc == target_desc) { + return_ACPI_STATUS(AE_OK); + } + /* We know that source_desc is a string by now */ buffer = ACPI_CAST_PTR(u8, source_desc->string.pointer); diff --git a/drivers/acpi/acpica/exutils.c b/drivers/acpi/acpica/exutils.c index 87730e944132..7d41f99f7052 100644 --- a/drivers/acpi/acpica/exutils.c +++ b/drivers/acpi/acpica/exutils.c @@ -358,50 +358,67 @@ static u32 acpi_ex_digits_needed(acpi_integer value, u32 base) * * FUNCTION: acpi_ex_eisa_id_to_string * - * PARAMETERS: numeric_id - EISA ID to be converted + * PARAMETERS: compressed_id - EISAID to be converted * out_string - Where to put the converted string (8 bytes) * * RETURN: None * - * DESCRIPTION: Convert a numeric EISA ID to string representation + * DESCRIPTION: Convert a numeric EISAID to string representation. Return + * buffer must be large enough to hold the string. The string + * returned is always exactly of length ACPI_EISAID_STRING_SIZE + * (includes null terminator). The EISAID is always 32 bits. * ******************************************************************************/ -void acpi_ex_eisa_id_to_string(u32 numeric_id, char *out_string) +void acpi_ex_eisa_id_to_string(char *out_string, acpi_integer compressed_id) { - u32 eisa_id; + u32 swapped_id; ACPI_FUNCTION_ENTRY(); + /* The EISAID should be a 32-bit integer */ + + if (compressed_id > ACPI_UINT32_MAX) { + ACPI_WARNING((AE_INFO, + "Expected EISAID is larger than 32 bits: 0x%8.8X%8.8X, truncating", + ACPI_FORMAT_UINT64(compressed_id))); + } + /* Swap ID to big-endian to get contiguous bits */ - eisa_id = acpi_ut_dword_byte_swap(numeric_id); + swapped_id = acpi_ut_dword_byte_swap((u32)compressed_id); - out_string[0] = (char)('@' + (((unsigned long)eisa_id >> 26) & 0x1f)); - out_string[1] = (char)('@' + ((eisa_id >> 21) & 0x1f)); - out_string[2] = (char)('@' + ((eisa_id >> 16) & 0x1f)); - out_string[3] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 12); - out_string[4] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 8); - out_string[5] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 4); - out_string[6] = acpi_ut_hex_to_ascii_char((acpi_integer) eisa_id, 0); + /* First 3 bytes are uppercase letters. Next 4 bytes are hexadecimal */ + + out_string[0] = + (char)(0x40 + (((unsigned long)swapped_id >> 26) & 0x1F)); + out_string[1] = (char)(0x40 + ((swapped_id >> 21) & 0x1F)); + out_string[2] = (char)(0x40 + ((swapped_id >> 16) & 0x1F)); + out_string[3] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 12); + out_string[4] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 8); + out_string[5] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 4); + out_string[6] = acpi_ut_hex_to_ascii_char((acpi_integer)swapped_id, 0); out_string[7] = 0; } /******************************************************************************* * - * FUNCTION: acpi_ex_unsigned_integer_to_string + * FUNCTION: acpi_ex_integer_to_string * - * PARAMETERS: Value - Value to be converted - * out_string - Where to put the converted string (8 bytes) + * PARAMETERS: out_string - Where to put the converted string. At least + * 21 bytes are needed to hold the largest + * possible 64-bit integer. + * Value - Value to be converted * * RETURN: None, string * - * DESCRIPTION: Convert a number to string representation. Assumes string - * buffer is large enough to hold the string. + * DESCRIPTION: Convert a 64-bit integer to decimal string representation. + * Assumes string buffer is large enough to hold the string. The + * largest string is (ACPI_MAX64_DECIMAL_DIGITS + 1). * ******************************************************************************/ -void acpi_ex_unsigned_integer_to_string(acpi_integer value, char *out_string) +void acpi_ex_integer_to_string(char *out_string, acpi_integer value) { u32 count; u32 digits_needed; diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c index d3b7e37c9eed..c28c41b3180b 100644 --- a/drivers/acpi/acpica/hwgpe.c +++ b/drivers/acpi/acpica/hwgpe.c @@ -82,7 +82,7 @@ acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) /* Get current value of the enable register that contains this GPE */ - status = acpi_read(&enable_mask, &gpe_register_info->enable_address); + status = acpi_hw_read(&enable_mask, &gpe_register_info->enable_address); if (ACPI_FAILURE(status)) { return (status); } @@ -95,7 +95,7 @@ acpi_status acpi_hw_low_disable_gpe(struct acpi_gpe_event_info *gpe_event_info) /* Write the updated enable mask */ - status = acpi_write(enable_mask, &gpe_register_info->enable_address); + status = acpi_hw_write(enable_mask, &gpe_register_info->enable_address); return (status); } @@ -130,8 +130,8 @@ acpi_hw_write_gpe_enable_reg(struct acpi_gpe_event_info * gpe_event_info) /* Write the entire GPE (runtime) enable register */ - status = acpi_write(gpe_register_info->enable_for_run, - &gpe_register_info->enable_address); + status = acpi_hw_write(gpe_register_info->enable_for_run, + &gpe_register_info->enable_address); return (status); } @@ -163,8 +163,8 @@ acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info * gpe_event_info) * Write a one to the appropriate bit in the status register to * clear this GPE. */ - status = acpi_write(register_bit, - &gpe_event_info->register_info->status_address); + status = acpi_hw_write(register_bit, + &gpe_event_info->register_info->status_address); return (status); } @@ -222,7 +222,7 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info, /* GPE currently active (status bit == 1)? */ - status = acpi_read(&in_byte, &gpe_register_info->status_address); + status = acpi_hw_read(&in_byte, &gpe_register_info->status_address); if (ACPI_FAILURE(status)) { goto unlock_and_exit; } @@ -266,8 +266,8 @@ acpi_hw_disable_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, /* Disable all GPEs in this register */ status = - acpi_write(0x00, - &gpe_block->register_info[i].enable_address); + acpi_hw_write(0x00, + &gpe_block->register_info[i].enable_address); if (ACPI_FAILURE(status)) { return (status); } @@ -303,8 +303,8 @@ acpi_hw_clear_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, /* Clear status on all GPEs in this register */ status = - acpi_write(0xFF, - &gpe_block->register_info[i].status_address); + acpi_hw_write(0xFF, + &gpe_block->register_info[i].status_address); if (ACPI_FAILURE(status)) { return (status); } @@ -345,9 +345,9 @@ acpi_hw_enable_runtime_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, /* Enable all "runtime" GPEs in this register */ - status = acpi_write(gpe_block->register_info[i].enable_for_run, - &gpe_block->register_info[i]. - enable_address); + status = + acpi_hw_write(gpe_block->register_info[i].enable_for_run, + &gpe_block->register_info[i].enable_address); if (ACPI_FAILURE(status)) { return (status); } @@ -387,9 +387,9 @@ acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info, /* Enable all "wake" GPEs in this register */ - status = acpi_write(gpe_block->register_info[i].enable_for_wake, - &gpe_block->register_info[i]. - enable_address); + status = + acpi_hw_write(gpe_block->register_info[i].enable_for_wake, + &gpe_block->register_info[i].enable_address); if (ACPI_FAILURE(status)) { return (status); } diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c index 23d5505cb1f7..15c9ed2be853 100644 --- a/drivers/acpi/acpica/hwregs.c +++ b/drivers/acpi/acpica/hwregs.c @@ -62,6 +62,184 @@ acpi_hw_write_multiple(u32 value, struct acpi_generic_address *register_a, struct acpi_generic_address *register_b); +/****************************************************************************** + * + * FUNCTION: acpi_hw_validate_register + * + * PARAMETERS: Reg - GAS register structure + * max_bit_width - Max bit_width supported (32 or 64) + * Address - Pointer to where the gas->address + * is returned + * + * RETURN: Status + * + * DESCRIPTION: Validate the contents of a GAS register. Checks the GAS + * pointer, Address, space_id, bit_width, and bit_offset. + * + ******************************************************************************/ + +acpi_status +acpi_hw_validate_register(struct acpi_generic_address *reg, + u8 max_bit_width, u64 *address) +{ + + /* Must have a valid pointer to a GAS structure */ + + if (!reg) { + return (AE_BAD_PARAMETER); + } + + /* + * Copy the target address. This handles possible alignment issues. + * Address must not be null. A null address also indicates an optional + * ACPI register that is not supported, so no error message. + */ + ACPI_MOVE_64_TO_64(address, ®->address); + if (!(*address)) { + return (AE_BAD_ADDRESS); + } + + /* Validate the space_iD */ + + if ((reg->space_id != ACPI_ADR_SPACE_SYSTEM_MEMORY) && + (reg->space_id != ACPI_ADR_SPACE_SYSTEM_IO)) { + ACPI_ERROR((AE_INFO, + "Unsupported address space: 0x%X", reg->space_id)); + return (AE_SUPPORT); + } + + /* Validate the bit_width */ + + if ((reg->bit_width != 8) && + (reg->bit_width != 16) && + (reg->bit_width != 32) && (reg->bit_width != max_bit_width)) { + ACPI_ERROR((AE_INFO, + "Unsupported register bit width: 0x%X", + reg->bit_width)); + return (AE_SUPPORT); + } + + /* Validate the bit_offset. Just a warning for now. */ + + if (reg->bit_offset != 0) { + ACPI_WARNING((AE_INFO, + "Unsupported register bit offset: 0x%X", + reg->bit_offset)); + } + + return (AE_OK); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_read + * + * PARAMETERS: Value - Where the value is returned + * Reg - GAS register structure + * + * RETURN: Status + * + * DESCRIPTION: Read from either memory or IO space. This is a 32-bit max + * version of acpi_read, used internally since the overhead of + * 64-bit values is not needed. + * + * LIMITATIONS: <These limitations also apply to acpi_hw_write> + * bit_width must be exactly 8, 16, or 32. + * space_iD must be system_memory or system_iO. + * bit_offset and access_width are currently ignored, as there has + * not been a need to implement these. + * + ******************************************************************************/ + +acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg) +{ + u64 address; + acpi_status status; + + ACPI_FUNCTION_NAME(hw_read); + + /* Validate contents of the GAS register */ + + status = acpi_hw_validate_register(reg, 32, &address); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Initialize entire 32-bit return value to zero */ + + *value = 0; + + /* + * Two address spaces supported: Memory or IO. PCI_Config is + * not supported here because the GAS structure is insufficient + */ + if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) { + status = acpi_os_read_memory((acpi_physical_address) + address, value, reg->bit_width); + } else { /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */ + + status = acpi_hw_read_port((acpi_io_address) + address, value, reg->bit_width); + } + + ACPI_DEBUG_PRINT((ACPI_DB_IO, + "Read: %8.8X width %2d from %8.8X%8.8X (%s)\n", + *value, reg->bit_width, ACPI_FORMAT_UINT64(address), + acpi_ut_get_region_name(reg->space_id))); + + return (status); +} + +/****************************************************************************** + * + * FUNCTION: acpi_hw_write + * + * PARAMETERS: Value - Value to be written + * Reg - GAS register structure + * + * RETURN: Status + * + * DESCRIPTION: Write to either memory or IO space. This is a 32-bit max + * version of acpi_write, used internally since the overhead of + * 64-bit values is not needed. + * + ******************************************************************************/ + +acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg) +{ + u64 address; + acpi_status status; + + ACPI_FUNCTION_NAME(hw_write); + + /* Validate contents of the GAS register */ + + status = acpi_hw_validate_register(reg, 32, &address); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* + * Two address spaces supported: Memory or IO. PCI_Config is + * not supported here because the GAS structure is insufficient + */ + if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) { + status = acpi_os_write_memory((acpi_physical_address) + address, value, reg->bit_width); + } else { /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */ + + status = acpi_hw_write_port((acpi_io_address) + address, value, reg->bit_width); + } + + ACPI_DEBUG_PRINT((ACPI_DB_IO, + "Wrote: %8.8X width %2d to %8.8X%8.8X (%s)\n", + value, reg->bit_width, ACPI_FORMAT_UINT64(address), + acpi_ut_get_region_name(reg->space_id))); + + return (status); +} + /******************************************************************************* * * FUNCTION: acpi_hw_clear_acpi_status @@ -152,15 +330,16 @@ acpi_status acpi_hw_write_pm1_control(u32 pm1a_control, u32 pm1b_control) ACPI_FUNCTION_TRACE(hw_write_pm1_control); - status = acpi_write(pm1a_control, &acpi_gbl_FADT.xpm1a_control_block); + status = + acpi_hw_write(pm1a_control, &acpi_gbl_FADT.xpm1a_control_block); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } if (acpi_gbl_FADT.xpm1b_control_block.address) { status = - acpi_write(pm1b_control, - &acpi_gbl_FADT.xpm1b_control_block); + acpi_hw_write(pm1b_control, + &acpi_gbl_FADT.xpm1b_control_block); } return_ACPI_STATUS(status); } @@ -218,12 +397,13 @@ acpi_hw_register_read(u32 register_id, u32 * return_value) case ACPI_REGISTER_PM2_CONTROL: /* 8-bit access */ - status = acpi_read(&value, &acpi_gbl_FADT.xpm2_control_block); + status = + acpi_hw_read(&value, &acpi_gbl_FADT.xpm2_control_block); break; case ACPI_REGISTER_PM_TIMER: /* 32-bit access */ - status = acpi_read(&value, &acpi_gbl_FADT.xpm_timer_block); + status = acpi_hw_read(&value, &acpi_gbl_FADT.xpm_timer_block); break; case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */ @@ -340,7 +520,8 @@ acpi_status acpi_hw_register_write(u32 register_id, u32 value) * as per the ACPI spec. */ status = - acpi_read(&read_value, &acpi_gbl_FADT.xpm2_control_block); + acpi_hw_read(&read_value, + &acpi_gbl_FADT.xpm2_control_block); if (ACPI_FAILURE(status)) { goto exit; } @@ -350,12 +531,13 @@ acpi_status acpi_hw_register_write(u32 register_id, u32 value) ACPI_INSERT_BITS(value, ACPI_PM2_CONTROL_PRESERVED_BITS, read_value); - status = acpi_write(value, &acpi_gbl_FADT.xpm2_control_block); + status = + acpi_hw_write(value, &acpi_gbl_FADT.xpm2_control_block); break; case ACPI_REGISTER_PM_TIMER: /* 32-bit access */ - status = acpi_write(value, &acpi_gbl_FADT.xpm_timer_block); + status = acpi_hw_write(value, &acpi_gbl_FADT.xpm_timer_block); break; case ACPI_REGISTER_SMI_COMMAND_BLOCK: /* 8-bit access */ @@ -401,7 +583,7 @@ acpi_hw_read_multiple(u32 *value, /* The first register is always required */ - status = acpi_read(&value_a, register_a); + status = acpi_hw_read(&value_a, register_a); if (ACPI_FAILURE(status)) { return (status); } @@ -409,7 +591,7 @@ acpi_hw_read_multiple(u32 *value, /* Second register is optional */ if (register_b->address) { - status = acpi_read(&value_b, register_b); + status = acpi_hw_read(&value_b, register_b); if (ACPI_FAILURE(status)) { return (status); } @@ -452,7 +634,7 @@ acpi_hw_write_multiple(u32 value, /* The first register is always required */ - status = acpi_write(value, register_a); + status = acpi_hw_write(value, register_a); if (ACPI_FAILURE(status)) { return (status); } @@ -470,7 +652,7 @@ acpi_hw_write_multiple(u32 value, * and writes have no side effects" */ if (register_b->address) { - status = acpi_write(value, register_b); + status = acpi_hw_write(value, register_b); } return (status); diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c index db307a356f08..cc22f9a585b0 100644 --- a/drivers/acpi/acpica/hwsleep.c +++ b/drivers/acpi/acpica/hwsleep.c @@ -45,6 +45,7 @@ #include <acpi/acpi.h> #include "accommon.h" #include "actables.h" +#include <linux/tboot.h> #define _COMPONENT ACPI_HARDWARE ACPI_MODULE_NAME("hwsleep") @@ -342,6 +343,8 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state) ACPI_FLUSH_CPU_CACHE(); + tboot_sleep(sleep_state, pm1a_control, pm1b_control); + /* Write #2: Write both SLP_TYP + SLP_EN */ status = acpi_hw_write_pm1_control(pm1a_control, pm1b_control); diff --git a/drivers/acpi/acpica/hwtimer.c b/drivers/acpi/acpica/hwtimer.c index b7f522c8f023..6b282e85d039 100644 --- a/drivers/acpi/acpica/hwtimer.c +++ b/drivers/acpi/acpica/hwtimer.c @@ -100,7 +100,7 @@ acpi_status acpi_get_timer(u32 * ticks) } status = - acpi_hw_low_level_read(32, ticks, &acpi_gbl_FADT.xpm_timer_block); + acpi_hw_read(ticks, &acpi_gbl_FADT.xpm_timer_block); return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c index 9829979f2bdd..647c7b6e6756 100644 --- a/drivers/acpi/acpica/hwxface.c +++ b/drivers/acpi/acpica/hwxface.c @@ -78,9 +78,22 @@ acpi_status acpi_reset(void) return_ACPI_STATUS(AE_NOT_EXIST); } - /* Write the reset value to the reset register */ + if (reset_reg->space_id == ACPI_ADR_SPACE_SYSTEM_IO) { + /* + * For I/O space, write directly to the OSL. This bypasses the port + * validation mechanism, which may block a valid write to the reset + * register. + */ + status = + acpi_os_write_port((acpi_io_address) reset_reg->address, + acpi_gbl_FADT.reset_value, + reset_reg->bit_width); + } else { + /* Write the reset value to the reset register */ + + status = acpi_hw_write(acpi_gbl_FADT.reset_value, reset_reg); + } - status = acpi_write(acpi_gbl_FADT.reset_value, reset_reg); return_ACPI_STATUS(status); } @@ -97,67 +110,92 @@ ACPI_EXPORT_SYMBOL(acpi_reset) * * DESCRIPTION: Read from either memory or IO space. * + * LIMITATIONS: <These limitations also apply to acpi_write> + * bit_width must be exactly 8, 16, 32, or 64. + * space_iD must be system_memory or system_iO. + * bit_offset and access_width are currently ignored, as there has + * not been a need to implement these. + * ******************************************************************************/ -acpi_status acpi_read(u32 *value, struct acpi_generic_address *reg) +acpi_status acpi_read(u64 *return_value, struct acpi_generic_address *reg) { + u32 value; u32 width; u64 address; acpi_status status; ACPI_FUNCTION_NAME(acpi_read); - /* - * Must have a valid pointer to a GAS structure, and a non-zero address - * within. - */ - if (!reg) { + if (!return_value) { return (AE_BAD_PARAMETER); } - /* Get a local copy of the address. Handles possible alignment issues */ + /* Validate contents of the GAS register. Allow 64-bit transfers */ - ACPI_MOVE_64_TO_64(&address, ®->address); - if (!address) { - return (AE_BAD_ADDRESS); + status = acpi_hw_validate_register(reg, 64, &address); + if (ACPI_FAILURE(status)) { + return (status); } - /* Supported widths are 8/16/32 */ - width = reg->bit_width; - if ((width != 8) && (width != 16) && (width != 32)) { - return (AE_SUPPORT); + if (width == 64) { + width = 32; /* Break into two 32-bit transfers */ } - /* Initialize entire 32-bit return value to zero */ + /* Initialize entire 64-bit return value to zero */ - *value = 0; + *return_value = 0; + value = 0; /* * Two address spaces supported: Memory or IO. PCI_Config is * not supported here because the GAS structure is insufficient */ - switch (reg->space_id) { - case ACPI_ADR_SPACE_SYSTEM_MEMORY: + if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) { + status = acpi_os_read_memory((acpi_physical_address) + address, &value, width); + if (ACPI_FAILURE(status)) { + return (status); + } + *return_value = value; - status = acpi_os_read_memory((acpi_physical_address) address, - value, width); - break; + if (reg->bit_width == 64) { - case ACPI_ADR_SPACE_SYSTEM_IO: + /* Read the top 32 bits */ - status = - acpi_hw_read_port((acpi_io_address) address, value, width); - break; + status = acpi_os_read_memory((acpi_physical_address) + (address + 4), &value, 32); + if (ACPI_FAILURE(status)) { + return (status); + } + *return_value |= ((u64)value << 32); + } + } else { /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */ - default: - ACPI_ERROR((AE_INFO, - "Unsupported address space: %X", reg->space_id)); - return (AE_BAD_PARAMETER); + status = acpi_hw_read_port((acpi_io_address) + address, &value, width); + if (ACPI_FAILURE(status)) { + return (status); + } + *return_value = value; + + if (reg->bit_width == 64) { + + /* Read the top 32 bits */ + + status = acpi_hw_read_port((acpi_io_address) + (address + 4), &value, 32); + if (ACPI_FAILURE(status)) { + return (status); + } + *return_value |= ((u64)value << 32); + } } ACPI_DEBUG_PRINT((ACPI_DB_IO, - "Read: %8.8X width %2d from %8.8X%8.8X (%s)\n", - *value, width, ACPI_FORMAT_UINT64(address), + "Read: %8.8X%8.8X width %2d from %8.8X%8.8X (%s)\n", + ACPI_FORMAT_UINT64(*return_value), reg->bit_width, + ACPI_FORMAT_UINT64(address), acpi_ut_get_region_name(reg->space_id))); return (status); @@ -169,7 +207,7 @@ ACPI_EXPORT_SYMBOL(acpi_read) * * FUNCTION: acpi_write * - * PARAMETERS: Value - To be written + * PARAMETERS: Value - Value to be written * Reg - GAS register structure * * RETURN: Status @@ -177,7 +215,7 @@ ACPI_EXPORT_SYMBOL(acpi_read) * DESCRIPTION: Write to either memory or IO space. * ******************************************************************************/ -acpi_status acpi_write(u32 value, struct acpi_generic_address *reg) +acpi_status acpi_write(u64 value, struct acpi_generic_address *reg) { u32 width; u64 address; @@ -185,54 +223,61 @@ acpi_status acpi_write(u32 value, struct acpi_generic_address *reg) ACPI_FUNCTION_NAME(acpi_write); - /* - * Must have a valid pointer to a GAS structure, and a non-zero address - * within. - */ - if (!reg) { - return (AE_BAD_PARAMETER); - } - - /* Get a local copy of the address. Handles possible alignment issues */ + /* Validate contents of the GAS register. Allow 64-bit transfers */ - ACPI_MOVE_64_TO_64(&address, ®->address); - if (!address) { - return (AE_BAD_ADDRESS); + status = acpi_hw_validate_register(reg, 64, &address); + if (ACPI_FAILURE(status)) { + return (status); } - /* Supported widths are 8/16/32 */ - width = reg->bit_width; - if ((width != 8) && (width != 16) && (width != 32)) { - return (AE_SUPPORT); + if (width == 64) { + width = 32; /* Break into two 32-bit transfers */ } /* - * Two address spaces supported: Memory or IO. - * PCI_Config is not supported here because the GAS struct is insufficient + * Two address spaces supported: Memory or IO. PCI_Config is + * not supported here because the GAS structure is insufficient */ - switch (reg->space_id) { - case ACPI_ADR_SPACE_SYSTEM_MEMORY: - - status = acpi_os_write_memory((acpi_physical_address) address, - value, width); - break; + if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) { + status = acpi_os_write_memory((acpi_physical_address) + address, ACPI_LODWORD(value), + width); + if (ACPI_FAILURE(status)) { + return (status); + } - case ACPI_ADR_SPACE_SYSTEM_IO: + if (reg->bit_width == 64) { + status = acpi_os_write_memory((acpi_physical_address) + (address + 4), + ACPI_HIDWORD(value), 32); + if (ACPI_FAILURE(status)) { + return (status); + } + } + } else { /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */ - status = acpi_hw_write_port((acpi_io_address) address, value, + status = acpi_hw_write_port((acpi_io_address) + address, ACPI_LODWORD(value), width); - break; + if (ACPI_FAILURE(status)) { + return (status); + } - default: - ACPI_ERROR((AE_INFO, - "Unsupported address space: %X", reg->space_id)); - return (AE_BAD_PARAMETER); + if (reg->bit_width == 64) { + status = acpi_hw_write_port((acpi_io_address) + (address + 4), + ACPI_HIDWORD(value), 32); + if (ACPI_FAILURE(status)) { + return (status); + } + } } ACPI_DEBUG_PRINT((ACPI_DB_IO, - "Wrote: %8.8X width %2d to %8.8X%8.8X (%s)\n", - value, width, ACPI_FORMAT_UINT64(address), + "Wrote: %8.8X%8.8X width %2d to %8.8X%8.8X (%s)\n", + ACPI_FORMAT_UINT64(value), reg->bit_width, + ACPI_FORMAT_UINT64(address), acpi_ut_get_region_name(reg->space_id))); return (status); diff --git a/drivers/acpi/acpica/nsalloc.c b/drivers/acpi/acpica/nsalloc.c index efc971ab7d65..8a58a1b85aa0 100644 --- a/drivers/acpi/acpica/nsalloc.c +++ b/drivers/acpi/acpica/nsalloc.c @@ -96,17 +96,68 @@ struct acpi_namespace_node *acpi_ns_create_node(u32 name) * * RETURN: None * - * DESCRIPTION: Delete a namespace node + * DESCRIPTION: Delete a namespace node. All node deletions must come through + * here. Detaches any attached objects, including any attached + * data. If a handler is associated with attached data, it is + * invoked before the node is deleted. * ******************************************************************************/ void acpi_ns_delete_node(struct acpi_namespace_node *node) { + union acpi_operand_object *obj_desc; + + ACPI_FUNCTION_NAME(ns_delete_node); + + /* Detach an object if there is one */ + + acpi_ns_detach_object(node); + + /* + * Delete an attached data object if present (an object that was created + * and attached via acpi_attach_data). Note: After any normal object is + * detached above, the only possible remaining object is a data object. + */ + obj_desc = node->object; + if (obj_desc && (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA)) { + + /* Invoke the attached data deletion handler if present */ + + if (obj_desc->data.handler) { + obj_desc->data.handler(node, obj_desc->data.pointer); + } + + acpi_ut_remove_reference(obj_desc); + } + + /* Now we can delete the node */ + + (void)acpi_os_release_object(acpi_gbl_namespace_cache, node); + + ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++); + ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "Node %p, Remaining %X\n", + node, acpi_gbl_current_node_count)); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_remove_node + * + * PARAMETERS: Node - Node to be removed/deleted + * + * RETURN: None + * + * DESCRIPTION: Remove (unlink) and delete a namespace node + * + ******************************************************************************/ + +void acpi_ns_remove_node(struct acpi_namespace_node *node) +{ struct acpi_namespace_node *parent_node; struct acpi_namespace_node *prev_node; struct acpi_namespace_node *next_node; - ACPI_FUNCTION_TRACE_PTR(ns_delete_node, node); + ACPI_FUNCTION_TRACE_PTR(ns_remove_node, node); parent_node = acpi_ns_get_parent_node(node); @@ -142,12 +193,9 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node) } } - ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++); - - /* Detach an object if there is one, then delete the node */ + /* Delete the node and any attached objects */ - acpi_ns_detach_object(node); - (void)acpi_os_release_object(acpi_gbl_namespace_cache, node); + acpi_ns_delete_node(node); return_VOID; } @@ -273,25 +321,11 @@ void acpi_ns_delete_children(struct acpi_namespace_node *parent_node) parent_node, child_node)); } - /* Now we can free this child object */ - - ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_freed++); - - ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, - "Object %p, Remaining %X\n", child_node, - acpi_gbl_current_node_count)); - - /* Detach an object if there is one, then free the child node */ - - acpi_ns_detach_object(child_node); - - /* Now we can delete the node */ - - (void)acpi_os_release_object(acpi_gbl_namespace_cache, - child_node); - - /* And move on to the next child in the list */ - + /* + * Delete this child node and move on to the next child in the list. + * No need to unlink the node since we are deleting the entire branch. + */ + acpi_ns_delete_node(child_node); child_node = next_node; } while (!(flags & ANOBJ_END_OF_PEER_LIST)); @@ -433,7 +467,7 @@ void acpi_ns_delete_namespace_by_owner(acpi_owner_id owner_id) if (deletion_node) { acpi_ns_delete_children(deletion_node); - acpi_ns_delete_node(deletion_node); + acpi_ns_remove_node(deletion_node); deletion_node = NULL; } diff --git a/drivers/acpi/acpica/nsdumpdv.c b/drivers/acpi/acpica/nsdumpdv.c index 41994fe7fbb8..0fe87f1aef16 100644 --- a/drivers/acpi/acpica/nsdumpdv.c +++ b/drivers/acpi/acpica/nsdumpdv.c @@ -70,7 +70,6 @@ static acpi_status acpi_ns_dump_one_device(acpi_handle obj_handle, u32 level, void *context, void **return_value) { - struct acpi_buffer buffer; struct acpi_device_info *info; acpi_status status; u32 i; @@ -80,17 +79,15 @@ acpi_ns_dump_one_device(acpi_handle obj_handle, status = acpi_ns_dump_one_object(obj_handle, level, context, return_value); - buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - status = acpi_get_object_info(obj_handle, &buffer); + status = acpi_get_object_info(obj_handle, &info); if (ACPI_SUCCESS(status)) { - info = buffer.pointer; for (i = 0; i < level; i++) { ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES, " ")); } ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES, " HID: %s, ADR: %8.8X%8.8X, Status: %X\n", - info->hardware_id.value, + info->hardware_id.string, ACPI_FORMAT_UINT64(info->address), info->current_status)); ACPI_FREE(info); diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c index 8e7dec1176c9..846d1132feb1 100644 --- a/drivers/acpi/acpica/nseval.c +++ b/drivers/acpi/acpica/nseval.c @@ -50,6 +50,11 @@ #define _COMPONENT ACPI_NAMESPACE ACPI_MODULE_NAME("nseval") +/* Local prototypes */ +static void +acpi_ns_exec_module_code(union acpi_operand_object *method_obj, + struct acpi_evaluate_info *info); + /******************************************************************************* * * FUNCTION: acpi_ns_evaluate @@ -76,6 +81,7 @@ ACPI_MODULE_NAME("nseval") * MUTEX: Locks interpreter * ******************************************************************************/ + acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info) { acpi_status status; @@ -276,3 +282,134 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info * info) */ return_ACPI_STATUS(status); } + +/******************************************************************************* + * + * FUNCTION: acpi_ns_exec_module_code_list + * + * PARAMETERS: None + * + * RETURN: None. Exceptions during method execution are ignored, since + * we cannot abort a table load. + * + * DESCRIPTION: Execute all elements of the global module-level code list. + * Each element is executed as a single control method. + * + ******************************************************************************/ + +void acpi_ns_exec_module_code_list(void) +{ + union acpi_operand_object *prev; + union acpi_operand_object *next; + struct acpi_evaluate_info *info; + u32 method_count = 0; + + ACPI_FUNCTION_TRACE(ns_exec_module_code_list); + + /* Exit now if the list is empty */ + + next = acpi_gbl_module_code_list; + if (!next) { + return_VOID; + } + + /* Allocate the evaluation information block */ + + info = ACPI_ALLOCATE(sizeof(struct acpi_evaluate_info)); + if (!info) { + return_VOID; + } + + /* Walk the list, executing each "method" */ + + while (next) { + prev = next; + next = next->method.mutex; + + /* Clear the link field and execute the method */ + + prev->method.mutex = NULL; + acpi_ns_exec_module_code(prev, info); + method_count++; + + /* Delete the (temporary) method object */ + + acpi_ut_remove_reference(prev); + } + + ACPI_INFO((AE_INFO, + "Executed %u blocks of module-level executable AML code", + method_count)); + + ACPI_FREE(info); + acpi_gbl_module_code_list = NULL; + return_VOID; +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_exec_module_code + * + * PARAMETERS: method_obj - Object container for the module-level code + * Info - Info block for method evaluation + * + * RETURN: None. Exceptions during method execution are ignored, since + * we cannot abort a table load. + * + * DESCRIPTION: Execute a control method containing a block of module-level + * executable AML code. The control method is temporarily + * installed to the root node, then evaluated. + * + ******************************************************************************/ + +static void +acpi_ns_exec_module_code(union acpi_operand_object *method_obj, + struct acpi_evaluate_info *info) +{ + union acpi_operand_object *root_obj; + acpi_status status; + + ACPI_FUNCTION_TRACE(ns_exec_module_code); + + /* Initialize the evaluation information block */ + + ACPI_MEMSET(info, 0, sizeof(struct acpi_evaluate_info)); + info->prefix_node = acpi_gbl_root_node; + + /* + * Get the currently attached root object. Add a reference, because the + * ref count will be decreased when the method object is installed to + * the root node. + */ + root_obj = acpi_ns_get_attached_object(acpi_gbl_root_node); + acpi_ut_add_reference(root_obj); + + /* Install the method (module-level code) in the root node */ + + status = acpi_ns_attach_object(acpi_gbl_root_node, method_obj, + ACPI_TYPE_METHOD); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Execute the root node as a control method */ + + status = acpi_ns_evaluate(info); + + ACPI_DEBUG_PRINT((ACPI_DB_INIT, "Executed module-level code at %p\n", + method_obj->method.aml_start)); + + /* Detach the temporary method object */ + + acpi_ns_detach_object(acpi_gbl_root_node); + + /* Restore the original root object */ + + status = + acpi_ns_attach_object(acpi_gbl_root_node, root_obj, + ACPI_TYPE_DEVICE); + + exit: + acpi_ut_remove_reference(root_obj); + return_VOID; +} diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c index 2adfcf329e15..1d5b360eb25b 100644 --- a/drivers/acpi/acpica/nsinit.c +++ b/drivers/acpi/acpica/nsinit.c @@ -170,6 +170,21 @@ acpi_status acpi_ns_initialize_devices(void) goto error_exit; } + /* + * Execute the "global" _INI method that may appear at the root. This + * support is provided for Windows compatibility (Vista+) and is not + * part of the ACPI specification. + */ + info.evaluate_info->prefix_node = acpi_gbl_root_node; + info.evaluate_info->pathname = METHOD_NAME__INI; + info.evaluate_info->parameters = NULL; + info.evaluate_info->flags = ACPI_IGNORE_RETURN_VALUE; + + status = acpi_ns_evaluate(info.evaluate_info); + if (ACPI_SUCCESS(status)) { + info.num_INI++; + } + /* Walk namespace to execute all _INIs on present devices */ status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, diff --git a/drivers/acpi/acpica/nsload.c b/drivers/acpi/acpica/nsload.c index dcd7a6adbbbc..a7234e60e985 100644 --- a/drivers/acpi/acpica/nsload.c +++ b/drivers/acpi/acpica/nsload.c @@ -270,8 +270,7 @@ static acpi_status acpi_ns_delete_subtree(acpi_handle start_handle) /* Now delete the starting object, and we are done */ - acpi_ns_delete_node(child_handle); - + acpi_ns_remove_node(child_handle); return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c index 7f8e066b12a3..f8427afeebdf 100644 --- a/drivers/acpi/acpica/nspredef.c +++ b/drivers/acpi/acpica/nspredef.c @@ -42,6 +42,8 @@ * POSSIBILITY OF SUCH DAMAGES. */ +#define ACPI_CREATE_PREDEFINED_TABLE + #include <acpi/acpi.h> #include "accommon.h" #include "acnamesp.h" @@ -72,30 +74,31 @@ ACPI_MODULE_NAME("nspredef") ******************************************************************************/ /* Local prototypes */ static acpi_status -acpi_ns_check_package(char *pathname, - union acpi_operand_object **return_object_ptr, - const union acpi_predefined_info *predefined); +acpi_ns_check_package(struct acpi_predefined_data *data, + union acpi_operand_object **return_object_ptr); + +static acpi_status +acpi_ns_check_package_list(struct acpi_predefined_data *data, + const union acpi_predefined_info *package, + union acpi_operand_object **elements, u32 count); static acpi_status -acpi_ns_check_package_elements(char *pathname, +acpi_ns_check_package_elements(struct acpi_predefined_data *data, union acpi_operand_object **elements, u8 type1, u32 count1, u8 type2, u32 count2, u32 start_index); static acpi_status -acpi_ns_check_object_type(char *pathname, +acpi_ns_check_object_type(struct acpi_predefined_data *data, union acpi_operand_object **return_object_ptr, u32 expected_btypes, u32 package_index); static acpi_status -acpi_ns_check_reference(char *pathname, +acpi_ns_check_reference(struct acpi_predefined_data *data, union acpi_operand_object *return_object); -static acpi_status -acpi_ns_repair_object(u32 expected_btypes, - u32 package_index, - union acpi_operand_object **return_object_ptr); +static void acpi_ns_get_expected_types(char *buffer, u32 expected_btypes); /* * Names for the types that can be returned by the predefined objects. @@ -109,13 +112,13 @@ static const char *acpi_rtype_names[] = { "/Reference", }; -#define ACPI_NOT_PACKAGE ACPI_UINT32_MAX - /******************************************************************************* * * FUNCTION: acpi_ns_check_predefined_names * * PARAMETERS: Node - Namespace node for the method/object + * user_param_count - Number of parameters actually passed + * return_status - Status from the object evaluation * return_object_ptr - Pointer to the object returned from the * evaluation of a method or object * @@ -135,12 +138,13 @@ acpi_ns_check_predefined_names(struct acpi_namespace_node *node, acpi_status status = AE_OK; const union acpi_predefined_info *predefined; char *pathname; + struct acpi_predefined_data *data; /* Match the name for this method/object against the predefined list */ predefined = acpi_ns_check_for_predefined_name(node); - /* Get the full pathname to the object, for use in error messages */ + /* Get the full pathname to the object, for use in warning messages */ pathname = acpi_ns_get_external_pathname(node); if (!pathname) { @@ -158,28 +162,17 @@ acpi_ns_check_predefined_names(struct acpi_namespace_node *node, /* If not a predefined name, we cannot validate the return object */ if (!predefined) { - goto exit; - } - - /* If the method failed, we cannot validate the return object */ - - if ((return_status != AE_OK) && (return_status != AE_CTRL_RETURN_VALUE)) { - goto exit; + goto cleanup; } /* - * Only validate the return value on the first successful evaluation of - * the method. This ensures that any warnings will only be emitted during - * the very first evaluation of the method/object. + * If the method failed or did not actually return an object, we cannot + * validate the return object */ - if (node->flags & ANOBJ_EVALUATED) { - goto exit; + if ((return_status != AE_OK) && (return_status != AE_CTRL_RETURN_VALUE)) { + goto cleanup; } - /* Mark the node as having been successfully evaluated */ - - node->flags |= ANOBJ_EVALUATED; - /* * If there is no return value, check if we require a return value for * this predefined name. Either one return value is expected, or none, @@ -190,46 +183,67 @@ acpi_ns_check_predefined_names(struct acpi_namespace_node *node, if (!return_object) { if ((predefined->info.expected_btypes) && (!(predefined->info.expected_btypes & ACPI_RTYPE_NONE))) { - ACPI_ERROR((AE_INFO, - "%s: Missing expected return value", - pathname)); + ACPI_WARN_PREDEFINED((AE_INFO, pathname, + ACPI_WARN_ALWAYS, + "Missing expected return value")); status = AE_AML_NO_RETURN_VALUE; } - goto exit; + goto cleanup; } /* - * We have a return value, but if one wasn't expected, just exit, this is - * not a problem + * 1) We have a return value, but if one wasn't expected, just exit, this is + * not a problem. For example, if the "Implicit Return" feature is + * enabled, methods will always return a value. * - * For example, if the "Implicit Return" feature is enabled, methods will - * always return a value + * 2) If the return value can be of any type, then we cannot perform any + * validation, exit. */ - if (!predefined->info.expected_btypes) { - goto exit; + if ((!predefined->info.expected_btypes) || + (predefined->info.expected_btypes == ACPI_RTYPE_ALL)) { + goto cleanup; } + /* Create the parameter data block for object validation */ + + data = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_predefined_data)); + if (!data) { + goto cleanup; + } + data->predefined = predefined; + data->node_flags = node->flags; + data->pathname = pathname; + /* * Check that the type of the return object is what is expected for * this predefined name */ - status = acpi_ns_check_object_type(pathname, return_object_ptr, + status = acpi_ns_check_object_type(data, return_object_ptr, predefined->info.expected_btypes, - ACPI_NOT_PACKAGE); + ACPI_NOT_PACKAGE_ELEMENT); if (ACPI_FAILURE(status)) { - goto exit; + goto check_validation_status; } /* For returned Package objects, check the type of all sub-objects */ if (return_object->common.type == ACPI_TYPE_PACKAGE) { - status = - acpi_ns_check_package(pathname, return_object_ptr, - predefined); + status = acpi_ns_check_package(data, return_object_ptr); + } + +check_validation_status: + /* + * If the object validation failed or if we successfully repaired one + * or more objects, mark the parent node to suppress further warning + * messages during the next evaluation of the same method/object. + */ + if (ACPI_FAILURE(status) || (data->flags & ACPI_OBJECT_REPAIRED)) { + node->flags |= ANOBJ_EVALUATED; } + ACPI_FREE(data); - exit: +cleanup: ACPI_FREE(pathname); return (status); } @@ -268,64 +282,58 @@ acpi_ns_check_parameter_count(char *pathname, param_count = node->object->method.param_count; } - /* Argument count check for non-predefined methods/objects */ - if (!predefined) { /* + * Check the parameter count for non-predefined methods/objects. + * * Warning if too few or too many arguments have been passed by the * caller. An incorrect number of arguments may not cause the method * to fail. However, the method will fail if there are too few * arguments and the method attempts to use one of the missing ones. */ if (user_param_count < param_count) { - ACPI_WARNING((AE_INFO, - "%s: Insufficient arguments - needs %d, found %d", - pathname, param_count, user_param_count)); + ACPI_WARN_PREDEFINED((AE_INFO, pathname, + ACPI_WARN_ALWAYS, + "Insufficient arguments - needs %u, found %u", + param_count, user_param_count)); } else if (user_param_count > param_count) { - ACPI_WARNING((AE_INFO, - "%s: Excess arguments - needs %d, found %d", - pathname, param_count, user_param_count)); + ACPI_WARN_PREDEFINED((AE_INFO, pathname, + ACPI_WARN_ALWAYS, + "Excess arguments - needs %u, found %u", + param_count, user_param_count)); } return; } - /* Allow two different legal argument counts (_SCP, etc.) */ - + /* + * Validate the user-supplied parameter count. + * Allow two different legal argument counts (_SCP, etc.) + */ required_params_current = predefined->info.param_count & 0x0F; required_params_old = predefined->info.param_count >> 4; if (user_param_count != ACPI_UINT32_MAX) { - - /* Validate the user-supplied parameter count */ - if ((user_param_count != required_params_current) && (user_param_count != required_params_old)) { - ACPI_WARNING((AE_INFO, - "%s: Parameter count mismatch - " - "caller passed %d, ACPI requires %d", - pathname, user_param_count, - required_params_current)); + ACPI_WARN_PREDEFINED((AE_INFO, pathname, + ACPI_WARN_ALWAYS, + "Parameter count mismatch - " + "caller passed %u, ACPI requires %u", + user_param_count, + required_params_current)); } } /* - * Only validate the argument count on the first successful evaluation of - * the method. This ensures that any warnings will only be emitted during - * the very first evaluation of the method/object. - */ - if (node->flags & ANOBJ_EVALUATED) { - return; - } - - /* * Check that the ASL-defined parameter count is what is expected for - * this predefined name. + * this predefined name (parameter count as defined by the ACPI + * specification) */ if ((param_count != required_params_current) && (param_count != required_params_old)) { - ACPI_WARNING((AE_INFO, - "%s: Parameter count mismatch - ASL declared %d, ACPI requires %d", - pathname, param_count, required_params_current)); + ACPI_WARN_PREDEFINED((AE_INFO, pathname, node->flags, + "Parameter count mismatch - ASL declared %u, ACPI requires %u", + param_count, required_params_current)); } } @@ -358,9 +366,6 @@ const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct this_name = predefined_names; while (this_name->info.name[0]) { if (ACPI_COMPARE_NAME(node->name.ascii, this_name->info.name)) { - - /* Return pointer to this table entry */ - return (this_name); } @@ -375,17 +380,16 @@ const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct this_name++; } - return (NULL); + return (NULL); /* Not found */ } /******************************************************************************* * * FUNCTION: acpi_ns_check_package * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) + * PARAMETERS: Data - Pointer to validation data structure * return_object_ptr - Pointer to the object returned from the * evaluation of a method or object - * Predefined - Pointer to entry in predefined name table * * RETURN: Status * @@ -395,30 +399,26 @@ const union acpi_predefined_info *acpi_ns_check_for_predefined_name(struct ******************************************************************************/ static acpi_status -acpi_ns_check_package(char *pathname, - union acpi_operand_object **return_object_ptr, - const union acpi_predefined_info *predefined) +acpi_ns_check_package(struct acpi_predefined_data *data, + union acpi_operand_object **return_object_ptr) { union acpi_operand_object *return_object = *return_object_ptr; const union acpi_predefined_info *package; - union acpi_operand_object *sub_package; union acpi_operand_object **elements; - union acpi_operand_object **sub_elements; - acpi_status status; + acpi_status status = AE_OK; u32 expected_count; u32 count; u32 i; - u32 j; ACPI_FUNCTION_NAME(ns_check_package); /* The package info for this name is in the next table entry */ - package = predefined + 1; + package = data->predefined + 1; ACPI_DEBUG_PRINT((ACPI_DB_NAMES, "%s Validating return Package of Type %X, Count %X\n", - pathname, package->ret_info.type, + data->pathname, package->ret_info.type, return_object->package.count)); /* Extract package count and elements array */ @@ -429,9 +429,8 @@ acpi_ns_check_package(char *pathname, /* The package must have at least one element, else invalid */ if (!count) { - ACPI_WARNING((AE_INFO, - "%s: Return Package has no elements (empty)", - pathname)); + ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags, + "Return Package has no elements (empty)")); return (AE_AML_OPERAND_VALUE); } @@ -456,15 +455,16 @@ acpi_ns_check_package(char *pathname, if (count < expected_count) { goto package_too_small; } else if (count > expected_count) { - ACPI_WARNING((AE_INFO, - "%s: Return Package is larger than needed - " - "found %u, expected %u", pathname, count, - expected_count)); + ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, + data->node_flags, + "Return Package is larger than needed - " + "found %u, expected %u", count, + expected_count)); } /* Validate all elements of the returned package */ - status = acpi_ns_check_package_elements(pathname, elements, + status = acpi_ns_check_package_elements(data, elements, package->ret_info. object_type1, package->ret_info. @@ -473,9 +473,6 @@ acpi_ns_check_package(char *pathname, object_type2, package->ret_info. count2, 0); - if (ACPI_FAILURE(status)) { - return (status); - } break; case ACPI_PTYPE1_VAR: @@ -485,7 +482,7 @@ acpi_ns_check_package(char *pathname, * elements must be of the same type */ for (i = 0; i < count; i++) { - status = acpi_ns_check_object_type(pathname, elements, + status = acpi_ns_check_object_type(data, elements, package->ret_info. object_type1, i); if (ACPI_FAILURE(status)) { @@ -517,8 +514,7 @@ acpi_ns_check_package(char *pathname, /* These are the required package elements (0, 1, or 2) */ status = - acpi_ns_check_object_type(pathname, - elements, + acpi_ns_check_object_type(data, elements, package-> ret_info3. object_type[i], @@ -530,8 +526,7 @@ acpi_ns_check_package(char *pathname, /* These are the optional package elements */ status = - acpi_ns_check_object_type(pathname, - elements, + acpi_ns_check_object_type(data, elements, package-> ret_info3. tail_object_type, @@ -544,11 +539,30 @@ acpi_ns_check_package(char *pathname, } break; + case ACPI_PTYPE2_REV_FIXED: + + /* First element is the (Integer) revision */ + + status = acpi_ns_check_object_type(data, elements, + ACPI_RTYPE_INTEGER, 0); + if (ACPI_FAILURE(status)) { + return (status); + } + + elements++; + count--; + + /* Examine the sub-packages */ + + status = + acpi_ns_check_package_list(data, package, elements, count); + break; + case ACPI_PTYPE2_PKG_COUNT: /* First element is the (Integer) count of sub-packages to follow */ - status = acpi_ns_check_object_type(pathname, elements, + status = acpi_ns_check_object_type(data, elements, ACPI_RTYPE_INTEGER, 0); if (ACPI_FAILURE(status)) { return (status); @@ -566,9 +580,11 @@ acpi_ns_check_package(char *pathname, count = expected_count; elements++; - /* Now we can walk the sub-packages */ + /* Examine the sub-packages */ - /*lint -fallthrough */ + status = + acpi_ns_check_package_list(data, package, elements, count); + break; case ACPI_PTYPE2: case ACPI_PTYPE2_FIXED: @@ -576,176 +592,240 @@ acpi_ns_check_package(char *pathname, case ACPI_PTYPE2_COUNT: /* - * These types all return a single package that consists of a variable - * number of sub-packages + * These types all return a single Package that consists of a + * variable number of sub-Packages. + * + * First, ensure that the first element is a sub-Package. If not, + * the BIOS may have incorrectly returned the object as a single + * package instead of a Package of Packages (a common error if + * there is only one entry). We may be able to repair this by + * wrapping the returned Package with a new outer Package. */ - for (i = 0; i < count; i++) { - sub_package = *elements; - sub_elements = sub_package->package.elements; + if ((*elements)->common.type != ACPI_TYPE_PACKAGE) { - /* Each sub-object must be of type Package */ + /* Create the new outer package and populate it */ status = - acpi_ns_check_object_type(pathname, &sub_package, - ACPI_RTYPE_PACKAGE, i); + acpi_ns_repair_package_list(data, + return_object_ptr); if (ACPI_FAILURE(status)) { return (status); } - /* Examine the different types of sub-packages */ + /* Update locals to point to the new package (of 1 element) */ - switch (package->ret_info.type) { - case ACPI_PTYPE2: - case ACPI_PTYPE2_PKG_COUNT: + return_object = *return_object_ptr; + elements = return_object->package.elements; + count = 1; + } - /* Each subpackage has a fixed number of elements */ + /* Examine the sub-packages */ - expected_count = - package->ret_info.count1 + - package->ret_info.count2; - if (sub_package->package.count != - expected_count) { - count = sub_package->package.count; - goto package_too_small; - } + status = + acpi_ns_check_package_list(data, package, elements, count); + break; - status = - acpi_ns_check_package_elements(pathname, - sub_elements, - package-> - ret_info. - object_type1, - package-> - ret_info. - count1, - package-> - ret_info. - object_type2, - package-> - ret_info. - count2, 0); - if (ACPI_FAILURE(status)) { - return (status); - } - break; + default: - case ACPI_PTYPE2_FIXED: + /* Should not get here if predefined info table is correct */ - /* Each sub-package has a fixed length */ + ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags, + "Invalid internal return type in table entry: %X", + package->ret_info.type)); - expected_count = package->ret_info2.count; - if (sub_package->package.count < expected_count) { - count = sub_package->package.count; - goto package_too_small; - } + return (AE_AML_INTERNAL); + } - /* Check the type of each sub-package element */ + return (status); - for (j = 0; j < expected_count; j++) { - status = - acpi_ns_check_object_type(pathname, - &sub_elements[j], - package->ret_info2.object_type[j], j); - if (ACPI_FAILURE(status)) { - return (status); - } - } - break; +package_too_small: - case ACPI_PTYPE2_MIN: + /* Error exit for the case with an incorrect package count */ - /* Each sub-package has a variable but minimum length */ + ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags, + "Return Package is too small - found %u elements, expected %u", + count, expected_count)); - expected_count = package->ret_info.count1; - if (sub_package->package.count < expected_count) { - count = sub_package->package.count; - goto package_too_small; - } + return (AE_AML_OPERAND_VALUE); +} - /* Check the type of each sub-package element */ +/******************************************************************************* + * + * FUNCTION: acpi_ns_check_package_list + * + * PARAMETERS: Data - Pointer to validation data structure + * Package - Pointer to package-specific info for method + * Elements - Element list of parent package. All elements + * of this list should be of type Package. + * Count - Count of subpackages + * + * RETURN: Status + * + * DESCRIPTION: Examine a list of subpackages + * + ******************************************************************************/ - status = - acpi_ns_check_package_elements(pathname, - sub_elements, - package-> - ret_info. - object_type1, - sub_package-> - package. - count, 0, 0, - 0); - if (ACPI_FAILURE(status)) { - return (status); - } - break; +static acpi_status +acpi_ns_check_package_list(struct acpi_predefined_data *data, + const union acpi_predefined_info *package, + union acpi_operand_object **elements, u32 count) +{ + union acpi_operand_object *sub_package; + union acpi_operand_object **sub_elements; + acpi_status status; + u32 expected_count; + u32 i; + u32 j; - case ACPI_PTYPE2_COUNT: + /* Validate each sub-Package in the parent Package */ - /* First element is the (Integer) count of elements to follow */ + for (i = 0; i < count; i++) { + sub_package = *elements; + sub_elements = sub_package->package.elements; - status = - acpi_ns_check_object_type(pathname, - sub_elements, - ACPI_RTYPE_INTEGER, - 0); - if (ACPI_FAILURE(status)) { - return (status); - } + /* Each sub-object must be of type Package */ - /* Make sure package is large enough for the Count */ + status = acpi_ns_check_object_type(data, &sub_package, + ACPI_RTYPE_PACKAGE, i); + if (ACPI_FAILURE(status)) { + return (status); + } - expected_count = - (u32) (*sub_elements)->integer.value; - if (sub_package->package.count < expected_count) { - count = sub_package->package.count; - goto package_too_small; - } + /* Examine the different types of expected sub-packages */ + + switch (package->ret_info.type) { + case ACPI_PTYPE2: + case ACPI_PTYPE2_PKG_COUNT: + case ACPI_PTYPE2_REV_FIXED: + + /* Each subpackage has a fixed number of elements */ + + expected_count = + package->ret_info.count1 + package->ret_info.count2; + if (sub_package->package.count < expected_count) { + goto package_too_small; + } + + status = + acpi_ns_check_package_elements(data, sub_elements, + package->ret_info. + object_type1, + package->ret_info. + count1, + package->ret_info. + object_type2, + package->ret_info. + count2, 0); + if (ACPI_FAILURE(status)) { + return (status); + } + break; - /* Check the type of each sub-package element */ + case ACPI_PTYPE2_FIXED: + /* Each sub-package has a fixed length */ + + expected_count = package->ret_info2.count; + if (sub_package->package.count < expected_count) { + goto package_too_small; + } + + /* Check the type of each sub-package element */ + + for (j = 0; j < expected_count; j++) { status = - acpi_ns_check_package_elements(pathname, - (sub_elements - + 1), - package-> - ret_info. - object_type1, - (expected_count - - 1), 0, 0, - 1); + acpi_ns_check_object_type(data, + &sub_elements[j], + package-> + ret_info2. + object_type[j], + j); if (ACPI_FAILURE(status)) { return (status); } - break; + } + break; + + case ACPI_PTYPE2_MIN: - default: - break; + /* Each sub-package has a variable but minimum length */ + + expected_count = package->ret_info.count1; + if (sub_package->package.count < expected_count) { + goto package_too_small; } - elements++; - } - break; + /* Check the type of each sub-package element */ - default: + status = + acpi_ns_check_package_elements(data, sub_elements, + package->ret_info. + object_type1, + sub_package->package. + count, 0, 0, 0); + if (ACPI_FAILURE(status)) { + return (status); + } + break; - /* Should not get here if predefined info table is correct */ + case ACPI_PTYPE2_COUNT: + + /* + * First element is the (Integer) count of elements, including + * the count field. + */ + status = acpi_ns_check_object_type(data, sub_elements, + ACPI_RTYPE_INTEGER, + 0); + if (ACPI_FAILURE(status)) { + return (status); + } - ACPI_WARNING((AE_INFO, - "%s: Invalid internal return type in table entry: %X", - pathname, package->ret_info.type)); + /* + * Make sure package is large enough for the Count and is + * is as large as the minimum size + */ + expected_count = (u32)(*sub_elements)->integer.value; + if (sub_package->package.count < expected_count) { + goto package_too_small; + } + if (sub_package->package.count < + package->ret_info.count1) { + expected_count = package->ret_info.count1; + goto package_too_small; + } - return (AE_AML_INTERNAL); + /* Check the type of each sub-package element */ + + status = + acpi_ns_check_package_elements(data, + (sub_elements + 1), + package->ret_info. + object_type1, + (expected_count - 1), + 0, 0, 1); + if (ACPI_FAILURE(status)) { + return (status); + } + break; + + default: /* Should not get here, type was validated by caller */ + + return (AE_AML_INTERNAL); + } + + elements++; } return (AE_OK); - package_too_small: +package_too_small: - /* Error exit for the case with an incorrect package count */ + /* The sub-package count was smaller than required */ - ACPI_WARNING((AE_INFO, "%s: Return Package is too small - " - "found %u, expected %u", pathname, count, - expected_count)); + ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags, + "Return Sub-Package[%u] is too small - found %u elements, expected %u", + i, sub_package->package.count, expected_count)); return (AE_AML_OPERAND_VALUE); } @@ -754,7 +834,7 @@ acpi_ns_check_package(char *pathname, * * FUNCTION: acpi_ns_check_package_elements * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) + * PARAMETERS: Data - Pointer to validation data structure * Elements - Pointer to the package elements array * Type1 - Object type for first group * Count1 - Count for first group @@ -770,7 +850,7 @@ acpi_ns_check_package(char *pathname, ******************************************************************************/ static acpi_status -acpi_ns_check_package_elements(char *pathname, +acpi_ns_check_package_elements(struct acpi_predefined_data *data, union acpi_operand_object **elements, u8 type1, u32 count1, @@ -786,7 +866,7 @@ acpi_ns_check_package_elements(char *pathname, * The second group can have a count of zero. */ for (i = 0; i < count1; i++) { - status = acpi_ns_check_object_type(pathname, this_element, + status = acpi_ns_check_object_type(data, this_element, type1, i + start_index); if (ACPI_FAILURE(status)) { return (status); @@ -795,7 +875,7 @@ acpi_ns_check_package_elements(char *pathname, } for (i = 0; i < count2; i++) { - status = acpi_ns_check_object_type(pathname, this_element, + status = acpi_ns_check_object_type(data, this_element, type2, (i + count1 + start_index)); if (ACPI_FAILURE(status)) { @@ -811,12 +891,13 @@ acpi_ns_check_package_elements(char *pathname, * * FUNCTION: acpi_ns_check_object_type * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) + * PARAMETERS: Data - Pointer to validation data structure * return_object_ptr - Pointer to the object returned from the * evaluation of a method or object * expected_btypes - Bitmap of expected return type(s) * package_index - Index of object within parent package (if - * applicable - ACPI_NOT_PACKAGE otherwise) + * applicable - ACPI_NOT_PACKAGE_ELEMENT + * otherwise) * * RETURN: Status * @@ -826,7 +907,7 @@ acpi_ns_check_package_elements(char *pathname, ******************************************************************************/ static acpi_status -acpi_ns_check_object_type(char *pathname, +acpi_ns_check_object_type(struct acpi_predefined_data *data, union acpi_operand_object **return_object_ptr, u32 expected_btypes, u32 package_index) { @@ -834,9 +915,6 @@ acpi_ns_check_object_type(char *pathname, acpi_status status = AE_OK; u32 return_btype; char type_buffer[48]; /* Room for 5 types */ - u32 this_rtype; - u32 i; - u32 j; /* * If we get a NULL return_object here, it is a NULL package element, @@ -849,10 +927,11 @@ acpi_ns_check_object_type(char *pathname, /* A Namespace node should not get here, but make sure */ if (ACPI_GET_DESCRIPTOR_TYPE(return_object) == ACPI_DESC_TYPE_NAMED) { - ACPI_WARNING((AE_INFO, - "%s: Invalid return type - Found a Namespace node [%4.4s] type %s", - pathname, return_object->node.name.ascii, - acpi_ut_get_type_name(return_object->node.type))); + ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags, + "Invalid return type - Found a Namespace node [%4.4s] type %s", + return_object->node.name.ascii, + acpi_ut_get_type_name(return_object->node. + type))); return (AE_AML_OPERAND_TYPE); } @@ -897,10 +976,11 @@ acpi_ns_check_object_type(char *pathname, /* Type mismatch -- attempt repair of the returned object */ - status = acpi_ns_repair_object(expected_btypes, package_index, + status = acpi_ns_repair_object(data, expected_btypes, + package_index, return_object_ptr); if (ACPI_SUCCESS(status)) { - return (status); + return (AE_OK); /* Repair was successful */ } goto type_error_exit; } @@ -908,7 +988,7 @@ acpi_ns_check_object_type(char *pathname, /* For reference objects, check that the reference type is correct */ if (return_object->common.type == ACPI_TYPE_LOCAL_REFERENCE) { - status = acpi_ns_check_reference(pathname, return_object); + status = acpi_ns_check_reference(data, return_object); } return (status); @@ -917,33 +997,19 @@ acpi_ns_check_object_type(char *pathname, /* Create a string with all expected types for this predefined object */ - j = 1; - type_buffer[0] = 0; - this_rtype = ACPI_RTYPE_INTEGER; - - for (i = 0; i < ACPI_NUM_RTYPES; i++) { - - /* If one of the expected types, concatenate the name of this type */ - - if (expected_btypes & this_rtype) { - ACPI_STRCAT(type_buffer, &acpi_rtype_names[i][j]); - j = 0; /* Use name separator from now on */ - } - this_rtype <<= 1; /* Next Rtype */ - } + acpi_ns_get_expected_types(type_buffer, expected_btypes); - if (package_index == ACPI_NOT_PACKAGE) { - ACPI_WARNING((AE_INFO, - "%s: Return type mismatch - found %s, expected %s", - pathname, - acpi_ut_get_object_type_name(return_object), - type_buffer)); + if (package_index == ACPI_NOT_PACKAGE_ELEMENT) { + ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags, + "Return type mismatch - found %s, expected %s", + acpi_ut_get_object_type_name + (return_object), type_buffer)); } else { - ACPI_WARNING((AE_INFO, - "%s: Return Package type mismatch at index %u - " - "found %s, expected %s", pathname, package_index, - acpi_ut_get_object_type_name(return_object), - type_buffer)); + ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags, + "Return Package type mismatch at index %u - " + "found %s, expected %s", package_index, + acpi_ut_get_object_type_name + (return_object), type_buffer)); } return (AE_AML_OPERAND_TYPE); @@ -953,7 +1019,7 @@ acpi_ns_check_object_type(char *pathname, * * FUNCTION: acpi_ns_check_reference * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) + * PARAMETERS: Data - Pointer to validation data structure * return_object - Object returned from the evaluation of a * method or object * @@ -966,7 +1032,7 @@ acpi_ns_check_object_type(char *pathname, ******************************************************************************/ static acpi_status -acpi_ns_check_reference(char *pathname, +acpi_ns_check_reference(struct acpi_predefined_data *data, union acpi_operand_object *return_object) { @@ -979,94 +1045,46 @@ acpi_ns_check_reference(char *pathname, return (AE_OK); } - ACPI_WARNING((AE_INFO, - "%s: Return type mismatch - " - "unexpected reference object type [%s] %2.2X", - pathname, acpi_ut_get_reference_name(return_object), - return_object->reference.class)); + ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags, + "Return type mismatch - unexpected reference object type [%s] %2.2X", + acpi_ut_get_reference_name(return_object), + return_object->reference.class)); return (AE_AML_OPERAND_TYPE); } /******************************************************************************* * - * FUNCTION: acpi_ns_repair_object + * FUNCTION: acpi_ns_get_expected_types * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) - * package_index - Used to determine if target is in a package - * return_object_ptr - Pointer to the object returned from the - * evaluation of a method or object + * PARAMETERS: Buffer - Pointer to where the string is returned + * expected_btypes - Bitmap of expected return type(s) * - * RETURN: Status. AE_OK if repair was successful. + * RETURN: Buffer is populated with type names. * - * DESCRIPTION: Attempt to repair/convert a return object of a type that was - * not expected. + * DESCRIPTION: Translate the expected types bitmap into a string of ascii + * names of expected types, for use in warning messages. * ******************************************************************************/ -static acpi_status -acpi_ns_repair_object(u32 expected_btypes, - u32 package_index, - union acpi_operand_object **return_object_ptr) +static void acpi_ns_get_expected_types(char *buffer, u32 expected_btypes) { - union acpi_operand_object *return_object = *return_object_ptr; - union acpi_operand_object *new_object; - acpi_size length; - - switch (return_object->common.type) { - case ACPI_TYPE_BUFFER: - - if (!(expected_btypes & ACPI_RTYPE_STRING)) { - return (AE_AML_OPERAND_TYPE); - } - - /* - * Have a Buffer, expected a String, convert. Use a to_string - * conversion, no transform performed on the buffer data. The best - * example of this is the _BIF method, where the string data from - * the battery is often (incorrectly) returned as buffer object(s). - */ - length = 0; - while ((length < return_object->buffer.length) && - (return_object->buffer.pointer[length])) { - length++; - } - - /* Allocate a new string object */ - - new_object = acpi_ut_create_string_object(length); - if (!new_object) { - return (AE_NO_MEMORY); - } + u32 this_rtype; + u32 i; + u32 j; - /* - * Copy the raw buffer data with no transform. String is already NULL - * terminated at Length+1. - */ - ACPI_MEMCPY(new_object->string.pointer, - return_object->buffer.pointer, length); + j = 1; + buffer[0] = 0; + this_rtype = ACPI_RTYPE_INTEGER; - /* Install the new return object */ + for (i = 0; i < ACPI_NUM_RTYPES; i++) { - acpi_ut_remove_reference(return_object); - *return_object_ptr = new_object; + /* If one of the expected types, concatenate the name of this type */ - /* - * If the object is a package element, we need to: - * 1. Decrement the reference count of the orignal object, it was - * incremented when building the package - * 2. Increment the reference count of the new object, it will be - * decremented when releasing the package - */ - if (package_index != ACPI_NOT_PACKAGE) { - acpi_ut_remove_reference(return_object); - acpi_ut_add_reference(new_object); + if (expected_btypes & this_rtype) { + ACPI_STRCAT(buffer, &acpi_rtype_names[i][j]); + j = 0; /* Use name separator from now on */ } - return (AE_OK); - - default: - break; + this_rtype <<= 1; /* Next Rtype */ } - - return (AE_AML_OPERAND_TYPE); } diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c new file mode 100644 index 000000000000..db2b2a99c3a8 --- /dev/null +++ b/drivers/acpi/acpica/nsrepair.c @@ -0,0 +1,203 @@ +/****************************************************************************** + * + * Module Name: nsrepair - Repair for objects returned by predefined methods + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2009, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acnamesp.h" +#include "acpredef.h" + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nsrepair") + +/******************************************************************************* + * + * FUNCTION: acpi_ns_repair_object + * + * PARAMETERS: Data - Pointer to validation data structure + * expected_btypes - Object types expected + * package_index - Index of object within parent package (if + * applicable - ACPI_NOT_PACKAGE_ELEMENT + * otherwise) + * return_object_ptr - Pointer to the object returned from the + * evaluation of a method or object + * + * RETURN: Status. AE_OK if repair was successful. + * + * DESCRIPTION: Attempt to repair/convert a return object of a type that was + * not expected. + * + ******************************************************************************/ +acpi_status +acpi_ns_repair_object(struct acpi_predefined_data *data, + u32 expected_btypes, + u32 package_index, + union acpi_operand_object **return_object_ptr) +{ + union acpi_operand_object *return_object = *return_object_ptr; + union acpi_operand_object *new_object; + acpi_size length; + + switch (return_object->common.type) { + case ACPI_TYPE_BUFFER: + + /* Does the method/object legally return a string? */ + + if (!(expected_btypes & ACPI_RTYPE_STRING)) { + return (AE_AML_OPERAND_TYPE); + } + + /* + * Have a Buffer, expected a String, convert. Use a to_string + * conversion, no transform performed on the buffer data. The best + * example of this is the _BIF method, where the string data from + * the battery is often (incorrectly) returned as buffer object(s). + */ + length = 0; + while ((length < return_object->buffer.length) && + (return_object->buffer.pointer[length])) { + length++; + } + + /* Allocate a new string object */ + + new_object = acpi_ut_create_string_object(length); + if (!new_object) { + return (AE_NO_MEMORY); + } + + /* + * Copy the raw buffer data with no transform. String is already NULL + * terminated at Length+1. + */ + ACPI_MEMCPY(new_object->string.pointer, + return_object->buffer.pointer, length); + + /* + * If the original object is a package element, we need to: + * 1. Set the reference count of the new object to match the + * reference count of the old object. + * 2. Decrement the reference count of the original object. + */ + if (package_index != ACPI_NOT_PACKAGE_ELEMENT) { + new_object->common.reference_count = + return_object->common.reference_count; + + if (return_object->common.reference_count > 1) { + return_object->common.reference_count--; + } + + ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, + data->node_flags, + "Converted Buffer to expected String at index %u", + package_index)); + } else { + ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, + data->node_flags, + "Converted Buffer to expected String")); + } + + /* Delete old object, install the new return object */ + + acpi_ut_remove_reference(return_object); + *return_object_ptr = new_object; + data->flags |= ACPI_OBJECT_REPAIRED; + return (AE_OK); + + default: + break; + } + + return (AE_AML_OPERAND_TYPE); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_repair_package_list + * + * PARAMETERS: Data - Pointer to validation data structure + * obj_desc_ptr - Pointer to the object to repair. The new + * package object is returned here, + * overwriting the old object. + * + * RETURN: Status, new object in *obj_desc_ptr + * + * DESCRIPTION: Repair a common problem with objects that are defined to return + * a variable-length Package of Packages. If the variable-length + * is one, some BIOS code mistakenly simply declares a single + * Package instead of a Package with one sub-Package. This + * function attempts to repair this error by wrapping a Package + * object around the original Package, creating the correct + * Package with one sub-Package. + * + * Names that can be repaired in this manner include: + * _ALR, _CSD, _HPX, _MLS, _PRT, _PSS, _TRT, TSS + * + ******************************************************************************/ + +acpi_status +acpi_ns_repair_package_list(struct acpi_predefined_data *data, + union acpi_operand_object **obj_desc_ptr) +{ + union acpi_operand_object *pkg_obj_desc; + + /* + * Create the new outer package and populate it. The new package will + * have a single element, the lone subpackage. + */ + pkg_obj_desc = acpi_ut_create_package_object(1); + if (!pkg_obj_desc) { + return (AE_NO_MEMORY); + } + + pkg_obj_desc->package.elements[0] = *obj_desc_ptr; + + /* Return the new object in the object pointer */ + + *obj_desc_ptr = pkg_obj_desc; + data->flags |= ACPI_OBJECT_REPAIRED; + + ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags, + "Incorrectly formed Package, attempting repair")); + + return (AE_OK); +} diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c index 78277ed08339..ea55ab4f9849 100644 --- a/drivers/acpi/acpica/nsutils.c +++ b/drivers/acpi/acpica/nsutils.c @@ -88,7 +88,8 @@ acpi_ns_report_error(const char *module_name, /* There is a non-ascii character in the name */ - ACPI_MOVE_32_TO_32(&bad_name, internal_name); + ACPI_MOVE_32_TO_32(&bad_name, + ACPI_CAST_PTR(u32, internal_name)); acpi_os_printf("[0x%4.4X] (NON-ASCII)", bad_name); } else { /* Convert path to external format */ @@ -836,7 +837,7 @@ acpi_ns_get_node(struct acpi_namespace_node *prefix_node, acpi_status status; char *internal_path; - ACPI_FUNCTION_TRACE_PTR(ns_get_node, pathname); + ACPI_FUNCTION_TRACE_PTR(ns_get_node, ACPI_CAST_PTR(char, pathname)); if (!pathname) { *return_node = prefix_node; diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c index daf4ad37896d..4929dbdbc8f0 100644 --- a/drivers/acpi/acpica/nsxfeval.c +++ b/drivers/acpi/acpica/nsxfeval.c @@ -535,10 +535,11 @@ acpi_ns_get_device_callback(acpi_handle obj_handle, acpi_status status; struct acpi_namespace_node *node; u32 flags; - struct acpica_device_id hid; - struct acpi_compatible_id_list *cid; + struct acpica_device_id *hid; + struct acpica_device_id_list *cid; u32 i; - int found; + u8 found; + int no_match; status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); if (ACPI_FAILURE(status)) { @@ -582,10 +583,14 @@ acpi_ns_get_device_callback(acpi_handle obj_handle, return (AE_CTRL_DEPTH); } - if (ACPI_STRNCMP(hid.value, info->hid, sizeof(hid.value)) != 0) { - - /* Get the list of Compatible IDs */ + no_match = ACPI_STRCMP(hid->string, info->hid); + ACPI_FREE(hid); + if (no_match) { + /* + * HID does not match, attempt match within the + * list of Compatible IDs (CIDs) + */ status = acpi_ut_execute_CID(node, &cid); if (status == AE_NOT_FOUND) { return (AE_OK); @@ -597,10 +602,8 @@ acpi_ns_get_device_callback(acpi_handle obj_handle, found = 0; for (i = 0; i < cid->count; i++) { - if (ACPI_STRNCMP(cid->id[i].value, info->hid, - sizeof(struct - acpi_compatible_id)) == - 0) { + if (ACPI_STRCMP(cid->ids[i].string, info->hid) + == 0) { found = 1; break; } diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c index f23593d6add4..ddc84af6336e 100644 --- a/drivers/acpi/acpica/nsxfname.c +++ b/drivers/acpi/acpica/nsxfname.c @@ -51,6 +51,11 @@ #define _COMPONENT ACPI_NAMESPACE ACPI_MODULE_NAME("nsxfname") +/* Local prototypes */ +static char *acpi_ns_copy_device_id(struct acpica_device_id *dest, + struct acpica_device_id *source, + char *string_area); + /****************************************************************************** * * FUNCTION: acpi_get_handle @@ -68,6 +73,7 @@ ACPI_MODULE_NAME("nsxfname") * namespace handle. * ******************************************************************************/ + acpi_status acpi_get_handle(acpi_handle parent, acpi_string pathname, acpi_handle * ret_handle) @@ -210,10 +216,38 @@ ACPI_EXPORT_SYMBOL(acpi_get_name) /****************************************************************************** * + * FUNCTION: acpi_ns_copy_device_id + * + * PARAMETERS: Dest - Pointer to the destination DEVICE_ID + * Source - Pointer to the source DEVICE_ID + * string_area - Pointer to where to copy the dest string + * + * RETURN: Pointer to the next string area + * + * DESCRIPTION: Copy a single DEVICE_ID, including the string data. + * + ******************************************************************************/ +static char *acpi_ns_copy_device_id(struct acpica_device_id *dest, + struct acpica_device_id *source, + char *string_area) +{ + /* Create the destination DEVICE_ID */ + + dest->string = string_area; + dest->length = source->length; + + /* Copy actual string and return a pointer to the next string area */ + + ACPI_MEMCPY(string_area, source->string, source->length); + return (string_area + source->length); +} + +/****************************************************************************** + * * FUNCTION: acpi_get_object_info * - * PARAMETERS: Handle - Object Handle - * Buffer - Where the info is returned + * PARAMETERS: Handle - Object Handle + * return_buffer - Where the info is returned * * RETURN: Status * @@ -221,33 +255,37 @@ ACPI_EXPORT_SYMBOL(acpi_get_name) * namespace node and possibly by running several standard * control methods (Such as in the case of a device.) * + * For Device and Processor objects, run the Device _HID, _UID, _CID, _STA, + * _ADR, _sx_w, and _sx_d methods. + * + * Note: Allocates the return buffer, must be freed by the caller. + * ******************************************************************************/ + acpi_status -acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer) +acpi_get_object_info(acpi_handle handle, + struct acpi_device_info **return_buffer) { - acpi_status status; struct acpi_namespace_node *node; struct acpi_device_info *info; - struct acpi_device_info *return_info; - struct acpi_compatible_id_list *cid_list = NULL; - acpi_size size; + struct acpica_device_id_list *cid_list = NULL; + struct acpica_device_id *hid = NULL; + struct acpica_device_id *uid = NULL; + char *next_id_string; + acpi_object_type type; + acpi_name name; + u8 param_count = 0; + u8 valid = 0; + u32 info_size; + u32 i; + acpi_status status; /* Parameter validation */ - if (!handle || !buffer) { + if (!handle || !return_buffer) { return (AE_BAD_PARAMETER); } - status = acpi_ut_validate_buffer(buffer); - if (ACPI_FAILURE(status)) { - return (status); - } - - info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_device_info)); - if (!info) { - return (AE_NO_MEMORY); - } - status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); if (ACPI_FAILURE(status)) { goto cleanup; @@ -256,66 +294,91 @@ acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer) node = acpi_ns_map_handle_to_node(handle); if (!node) { (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); - status = AE_BAD_PARAMETER; - goto cleanup; + return (AE_BAD_PARAMETER); } - /* Init return structure */ - - size = sizeof(struct acpi_device_info); + /* Get the namespace node data while the namespace is locked */ - info->type = node->type; - info->name = node->name.integer; - info->valid = 0; + info_size = sizeof(struct acpi_device_info); + type = node->type; + name = node->name.integer; if (node->type == ACPI_TYPE_METHOD) { - info->param_count = node->object->method.param_count; + param_count = node->object->method.param_count; } status = acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); if (ACPI_FAILURE(status)) { - goto cleanup; + return (status); } - /* If not a device, we are all done */ - - if (info->type == ACPI_TYPE_DEVICE) { + if ((type == ACPI_TYPE_DEVICE) || (type == ACPI_TYPE_PROCESSOR)) { /* - * Get extra info for ACPI Devices objects only: - * Run the Device _HID, _UID, _CID, _STA, _ADR and _sx_d methods. + * Get extra info for ACPI Device/Processor objects only: + * Run the Device _HID, _UID, and _CID methods. * * Note: none of these methods are required, so they may or may - * not be present for this device. The Info->Valid bitfield is used - * to indicate which methods were found and ran successfully. + * not be present for this device. The Info->Valid bitfield is used + * to indicate which methods were found and run successfully. */ /* Execute the Device._HID method */ - status = acpi_ut_execute_HID(node, &info->hardware_id); + status = acpi_ut_execute_HID(node, &hid); if (ACPI_SUCCESS(status)) { - info->valid |= ACPI_VALID_HID; + info_size += hid->length; + valid |= ACPI_VALID_HID; } /* Execute the Device._UID method */ - status = acpi_ut_execute_UID(node, &info->unique_id); + status = acpi_ut_execute_UID(node, &uid); if (ACPI_SUCCESS(status)) { - info->valid |= ACPI_VALID_UID; + info_size += uid->length; + valid |= ACPI_VALID_UID; } /* Execute the Device._CID method */ status = acpi_ut_execute_CID(node, &cid_list); if (ACPI_SUCCESS(status)) { - size += cid_list->size; - info->valid |= ACPI_VALID_CID; + + /* Add size of CID strings and CID pointer array */ + + info_size += + (cid_list->list_size - + sizeof(struct acpica_device_id_list)); + valid |= ACPI_VALID_CID; } + } + + /* + * Now that we have the variable-length data, we can allocate the + * return buffer + */ + info = ACPI_ALLOCATE_ZEROED(info_size); + if (!info) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* Get the fixed-length data */ + + if ((type == ACPI_TYPE_DEVICE) || (type == ACPI_TYPE_PROCESSOR)) { + /* + * Get extra info for ACPI Device/Processor objects only: + * Run the _STA, _ADR and, sx_w, and _sx_d methods. + * + * Note: none of these methods are required, so they may or may + * not be present for this device. The Info->Valid bitfield is used + * to indicate which methods were found and run successfully. + */ /* Execute the Device._STA method */ status = acpi_ut_execute_STA(node, &info->current_status); if (ACPI_SUCCESS(status)) { - info->valid |= ACPI_VALID_STA; + valid |= ACPI_VALID_STA; } /* Execute the Device._ADR method */ @@ -323,36 +386,100 @@ acpi_get_object_info(acpi_handle handle, struct acpi_buffer * buffer) status = acpi_ut_evaluate_numeric_object(METHOD_NAME__ADR, node, &info->address); if (ACPI_SUCCESS(status)) { - info->valid |= ACPI_VALID_ADR; + valid |= ACPI_VALID_ADR; + } + + /* Execute the Device._sx_w methods */ + + status = acpi_ut_execute_power_methods(node, + acpi_gbl_lowest_dstate_names, + ACPI_NUM_sx_w_METHODS, + info->lowest_dstates); + if (ACPI_SUCCESS(status)) { + valid |= ACPI_VALID_SXWS; } /* Execute the Device._sx_d methods */ - status = acpi_ut_execute_sxds(node, info->highest_dstates); + status = acpi_ut_execute_power_methods(node, + acpi_gbl_highest_dstate_names, + ACPI_NUM_sx_d_METHODS, + info->highest_dstates); if (ACPI_SUCCESS(status)) { - info->valid |= ACPI_VALID_SXDS; + valid |= ACPI_VALID_SXDS; } } - /* Validate/Allocate/Clear caller buffer */ + /* + * Create a pointer to the string area of the return buffer. + * Point to the end of the base struct acpi_device_info structure. + */ + next_id_string = ACPI_CAST_PTR(char, info->compatible_id_list.ids); + if (cid_list) { - status = acpi_ut_initialize_buffer(buffer, size); - if (ACPI_FAILURE(status)) { - goto cleanup; + /* Point past the CID DEVICE_ID array */ + + next_id_string += + ((acpi_size) cid_list->count * + sizeof(struct acpica_device_id)); } - /* Populate the return buffer */ + /* + * Copy the HID, UID, and CIDs to the return buffer. The variable-length + * strings are copied to the reserved area at the end of the buffer. + * + * For HID and CID, check if the ID is a PCI Root Bridge. + */ + if (hid) { + next_id_string = acpi_ns_copy_device_id(&info->hardware_id, + hid, next_id_string); + + if (acpi_ut_is_pci_root_bridge(hid->string)) { + info->flags |= ACPI_PCI_ROOT_BRIDGE; + } + } - return_info = buffer->pointer; - ACPI_MEMCPY(return_info, info, sizeof(struct acpi_device_info)); + if (uid) { + next_id_string = acpi_ns_copy_device_id(&info->unique_id, + uid, next_id_string); + } if (cid_list) { - ACPI_MEMCPY(&return_info->compatibility_id, cid_list, - cid_list->size); + info->compatible_id_list.count = cid_list->count; + info->compatible_id_list.list_size = cid_list->list_size; + + /* Copy each CID */ + + for (i = 0; i < cid_list->count; i++) { + next_id_string = + acpi_ns_copy_device_id(&info->compatible_id_list. + ids[i], &cid_list->ids[i], + next_id_string); + + if (acpi_ut_is_pci_root_bridge(cid_list->ids[i].string)) { + info->flags |= ACPI_PCI_ROOT_BRIDGE; + } + } } + /* Copy the fixed-length data */ + + info->info_size = info_size; + info->type = type; + info->name = name; + info->param_count = param_count; + info->valid = valid; + + *return_buffer = info; + status = AE_OK; + cleanup: - ACPI_FREE(info); + if (hid) { + ACPI_FREE(hid); + } + if (uid) { + ACPI_FREE(uid); + } if (cid_list) { ACPI_FREE(cid_list); } diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c index c5f6ce19a401..cd7995b3aed4 100644 --- a/drivers/acpi/acpica/psloop.c +++ b/drivers/acpi/acpica/psloop.c @@ -86,6 +86,9 @@ static acpi_status acpi_ps_complete_final_op(struct acpi_walk_state *walk_state, union acpi_parse_object *op, acpi_status status); +static void +acpi_ps_link_module_code(u8 *aml_start, u32 aml_length, acpi_owner_id owner_id); + /******************************************************************************* * * FUNCTION: acpi_ps_get_aml_opcode @@ -390,6 +393,7 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state, { acpi_status status = AE_OK; union acpi_parse_object *arg = NULL; + const struct acpi_opcode_info *op_info; ACPI_FUNCTION_TRACE_PTR(ps_get_arguments, walk_state); @@ -449,13 +453,11 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state, INCREMENT_ARG_LIST(walk_state->arg_types); } - /* Special processing for certain opcodes */ - - /* TBD (remove): Temporary mechanism to disable this code if needed */ - -#ifdef ACPI_ENABLE_MODULE_LEVEL_CODE - - if ((walk_state->pass_number <= ACPI_IMODE_LOAD_PASS1) && + /* + * Handle executable code at "module-level". This refers to + * executable opcodes that appear outside of any control method. + */ + if ((walk_state->pass_number <= ACPI_IMODE_LOAD_PASS2) && ((walk_state->parse_flags & ACPI_PARSE_DISASSEMBLE) == 0)) { /* * We want to skip If/Else/While constructs during Pass1 because we @@ -469,6 +471,23 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state, case AML_ELSE_OP: case AML_WHILE_OP: + /* + * Currently supported module-level opcodes are: + * IF/ELSE/WHILE. These appear to be the most common, + * and easiest to support since they open an AML + * package. + */ + if (walk_state->pass_number == + ACPI_IMODE_LOAD_PASS1) { + acpi_ps_link_module_code(aml_op_start, + walk_state-> + parser_state. + pkg_end - + aml_op_start, + walk_state-> + owner_id); + } + ACPI_DEBUG_PRINT((ACPI_DB_PARSE, "Pass1: Skipping an If/Else/While body\n")); @@ -480,10 +499,34 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state, break; default: + /* + * Check for an unsupported executable opcode at module + * level. We must be in PASS1, the parent must be a SCOPE, + * The opcode class must be EXECUTE, and the opcode must + * not be an argument to another opcode. + */ + if ((walk_state->pass_number == + ACPI_IMODE_LOAD_PASS1) + && (op->common.parent->common.aml_opcode == + AML_SCOPE_OP)) { + op_info = + acpi_ps_get_opcode_info(op->common. + aml_opcode); + if ((op_info->class == + AML_CLASS_EXECUTE) && (!arg)) { + ACPI_WARNING((AE_INFO, + "Detected an unsupported executable opcode " + "at module-level: [0x%.4X] at table offset 0x%.4X", + op->common.aml_opcode, + (u32)((aml_op_start - walk_state->parser_state.aml_start) + + sizeof(struct acpi_table_header)))); + } + } break; } } -#endif + + /* Special processing for certain opcodes */ switch (op->common.aml_opcode) { case AML_METHOD_OP: @@ -553,6 +596,66 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state, /******************************************************************************* * + * FUNCTION: acpi_ps_link_module_code + * + * PARAMETERS: aml_start - Pointer to the AML + * aml_length - Length of executable AML + * owner_id - owner_id of module level code + * + * RETURN: None. + * + * DESCRIPTION: Wrap the module-level code with a method object and link the + * object to the global list. Note, the mutex field of the method + * object is used to link multiple module-level code objects. + * + ******************************************************************************/ + +static void +acpi_ps_link_module_code(u8 *aml_start, u32 aml_length, acpi_owner_id owner_id) +{ + union acpi_operand_object *prev; + union acpi_operand_object *next; + union acpi_operand_object *method_obj; + + /* Get the tail of the list */ + + prev = next = acpi_gbl_module_code_list; + while (next) { + prev = next; + next = next->method.mutex; + } + + /* + * Insert the module level code into the list. Merge it if it is + * adjacent to the previous element. + */ + if (!prev || + ((prev->method.aml_start + prev->method.aml_length) != aml_start)) { + + /* Create, initialize, and link a new temporary method object */ + + method_obj = acpi_ut_create_internal_object(ACPI_TYPE_METHOD); + if (!method_obj) { + return; + } + + method_obj->method.aml_start = aml_start; + method_obj->method.aml_length = aml_length; + method_obj->method.owner_id = owner_id; + method_obj->method.flags |= AOPOBJ_MODULE_LEVEL; + + if (!prev) { + acpi_gbl_module_code_list = method_obj; + } else { + prev->method.mutex = method_obj; + } + } else { + prev->method.aml_length += aml_length; + } +} + +/******************************************************************************* + * * FUNCTION: acpi_ps_complete_op * * PARAMETERS: walk_state - Current state diff --git a/drivers/acpi/acpica/psxface.c b/drivers/acpi/acpica/psxface.c index ff06032c0f06..dd9731c29a79 100644 --- a/drivers/acpi/acpica/psxface.c +++ b/drivers/acpi/acpica/psxface.c @@ -280,6 +280,10 @@ acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info) goto cleanup; } + if (info->obj_desc->method.flags & AOPOBJ_MODULE_LEVEL) { + walk_state->parse_flags |= ACPI_PARSE_MODULE_LEVEL; + } + /* Invoke an internal method if necessary */ if (info->obj_desc->method.method_flags & AML_METHOD_INTERNAL_ONLY) { diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c index 82b02dcb942e..c016335fb759 100644 --- a/drivers/acpi/acpica/tbfadt.c +++ b/drivers/acpi/acpica/tbfadt.c @@ -275,7 +275,6 @@ void acpi_tb_parse_fadt(u32 table_index) void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length) { - /* * Check if the FADT is larger than the largest table that we expect * (the ACPI 2.0/3.0 version). If so, truncate the table, and issue diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c index ef7d2c2d8f0b..1f15497f00d1 100644 --- a/drivers/acpi/acpica/tbutils.c +++ b/drivers/acpi/acpica/tbutils.c @@ -49,6 +49,12 @@ ACPI_MODULE_NAME("tbutils") /* Local prototypes */ +static void acpi_tb_fix_string(char *string, acpi_size length); + +static void +acpi_tb_cleanup_table_header(struct acpi_table_header *out_header, + struct acpi_table_header *header); + static acpi_physical_address acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size); @@ -161,6 +167,59 @@ u8 acpi_tb_tables_loaded(void) /******************************************************************************* * + * FUNCTION: acpi_tb_fix_string + * + * PARAMETERS: String - String to be repaired + * Length - Maximum length + * + * RETURN: None + * + * DESCRIPTION: Replace every non-printable or non-ascii byte in the string + * with a question mark '?'. + * + ******************************************************************************/ + +static void acpi_tb_fix_string(char *string, acpi_size length) +{ + + while (length && *string) { + if (!ACPI_IS_PRINT(*string)) { + *string = '?'; + } + string++; + length--; + } +} + +/******************************************************************************* + * + * FUNCTION: acpi_tb_cleanup_table_header + * + * PARAMETERS: out_header - Where the cleaned header is returned + * Header - Input ACPI table header + * + * RETURN: Returns the cleaned header in out_header + * + * DESCRIPTION: Copy the table header and ensure that all "string" fields in + * the header consist of printable characters. + * + ******************************************************************************/ + +static void +acpi_tb_cleanup_table_header(struct acpi_table_header *out_header, + struct acpi_table_header *header) +{ + + ACPI_MEMCPY(out_header, header, sizeof(struct acpi_table_header)); + + acpi_tb_fix_string(out_header->signature, ACPI_NAME_SIZE); + acpi_tb_fix_string(out_header->oem_id, ACPI_OEM_ID_SIZE); + acpi_tb_fix_string(out_header->oem_table_id, ACPI_OEM_TABLE_ID_SIZE); + acpi_tb_fix_string(out_header->asl_compiler_id, ACPI_NAME_SIZE); +} + +/******************************************************************************* + * * FUNCTION: acpi_tb_print_table_header * * PARAMETERS: Address - Table physical address @@ -176,6 +235,7 @@ void acpi_tb_print_table_header(acpi_physical_address address, struct acpi_table_header *header) { + struct acpi_table_header local_header; /* * The reason that the Address is cast to a void pointer is so that we @@ -192,6 +252,11 @@ acpi_tb_print_table_header(acpi_physical_address address, /* RSDP has no common fields */ + ACPI_MEMCPY(local_header.oem_id, + ACPI_CAST_PTR(struct acpi_table_rsdp, + header)->oem_id, ACPI_OEM_ID_SIZE); + acpi_tb_fix_string(local_header.oem_id, ACPI_OEM_ID_SIZE); + ACPI_INFO((AE_INFO, "RSDP %p %05X (v%.2d %6.6s)", ACPI_CAST_PTR (void, address), (ACPI_CAST_PTR(struct acpi_table_rsdp, header)-> @@ -200,18 +265,21 @@ acpi_tb_print_table_header(acpi_physical_address address, header)->length : 20, ACPI_CAST_PTR(struct acpi_table_rsdp, header)->revision, - ACPI_CAST_PTR(struct acpi_table_rsdp, - header)->oem_id)); + local_header.oem_id)); } else { /* Standard ACPI table with full common header */ + acpi_tb_cleanup_table_header(&local_header, header); + ACPI_INFO((AE_INFO, "%4.4s %p %05X (v%.2d %6.6s %8.8s %08X %4.4s %08X)", - header->signature, ACPI_CAST_PTR (void, address), - header->length, header->revision, header->oem_id, - header->oem_table_id, header->oem_revision, - header->asl_compiler_id, - header->asl_compiler_revision)); + local_header.signature, ACPI_CAST_PTR(void, address), + local_header.length, local_header.revision, + local_header.oem_id, local_header.oem_table_id, + local_header.oem_revision, + local_header.asl_compiler_id, + local_header.asl_compiler_revision)); + } } diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c index bc1710315088..96e26e70c63d 100644 --- a/drivers/acpi/acpica/utdelete.c +++ b/drivers/acpi/acpica/utdelete.c @@ -215,6 +215,12 @@ static void acpi_ut_delete_internal_obj(union acpi_operand_object *object) ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "***** Region %p\n", object)); + /* Invalidate the region address/length via the host OS */ + + acpi_os_invalidate_address(object->region.space_id, + object->region.address, + (acpi_size) object->region.length); + second_desc = acpi_ns_get_secondary_object(object); if (second_desc) { /* diff --git a/drivers/acpi/acpica/uteval.c b/drivers/acpi/acpica/uteval.c index 006b16c26017..5d54e36ab453 100644 --- a/drivers/acpi/acpica/uteval.c +++ b/drivers/acpi/acpica/uteval.c @@ -44,19 +44,10 @@ #include <acpi/acpi.h> #include "accommon.h" #include "acnamesp.h" -#include "acinterp.h" #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("uteval") -/* Local prototypes */ -static void -acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length); - -static acpi_status -acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc, - struct acpi_compatible_id *one_cid); - /* * Strings supported by the _OSI predefined (internal) method. * @@ -78,6 +69,9 @@ static struct acpi_interface_info acpi_interfaces_supported[] = { {"Windows 2001 SP2", ACPI_OSI_WIN_XP_SP2}, /* Windows XP SP2 */ {"Windows 2001.1 SP1", ACPI_OSI_WINSRV_2003_SP1}, /* Windows Server 2003 SP1 - Added 03/2006 */ {"Windows 2006", ACPI_OSI_WIN_VISTA}, /* Windows Vista - Added 03/2006 */ + {"Windows 2006.1", ACPI_OSI_WINSRV_2008}, /* Windows Server 2008 - Added 09/2009 */ + {"Windows 2006 SP1", ACPI_OSI_WIN_VISTA_SP1}, /* Windows Vista SP1 - Added 09/2009 */ + {"Windows 2009", ACPI_OSI_WIN_7}, /* Windows 7 and Server 2008 R2 - Added 09/2009 */ /* Feature Group Strings */ @@ -213,7 +207,7 @@ acpi_status acpi_osi_invalidate(char *interface) * RETURN: Status * * DESCRIPTION: Evaluates a namespace object and verifies the type of the - * return object. Common code that simplifies accessing objects + * return object. Common code that simplifies accessing objects * that have required return objects of fixed types. * * NOTE: Internal function, no parameter validation @@ -298,7 +292,7 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node, if ((acpi_gbl_enable_interpreter_slack) && (!expected_return_btypes)) { /* - * We received a return object, but one was not expected. This can + * We received a return object, but one was not expected. This can * happen frequently if the "implicit return" feature is enabled. * Just delete the return object and return AE_OK. */ @@ -340,12 +334,12 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node, * * PARAMETERS: object_name - Object name to be evaluated * device_node - Node for the device - * Address - Where the value is returned + * Value - Where the value is returned * * RETURN: Status * * DESCRIPTION: Evaluates a numeric namespace object for a selected device - * and stores result in *Address. + * and stores result in *Value. * * NOTE: Internal function, no parameter validation * @@ -354,7 +348,7 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node, acpi_status acpi_ut_evaluate_numeric_object(char *object_name, struct acpi_namespace_node *device_node, - acpi_integer * address) + acpi_integer *value) { union acpi_operand_object *obj_desc; acpi_status status; @@ -369,295 +363,7 @@ acpi_ut_evaluate_numeric_object(char *object_name, /* Get the returned Integer */ - *address = obj_desc->integer.value; - - /* On exit, we must delete the return object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_copy_id_string - * - * PARAMETERS: Destination - Where to copy the string - * Source - Source string - * max_length - Length of the destination buffer - * - * RETURN: None - * - * DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods. - * Performs removal of a leading asterisk if present -- workaround - * for a known issue on a bunch of machines. - * - ******************************************************************************/ - -static void -acpi_ut_copy_id_string(char *destination, char *source, acpi_size max_length) -{ - - /* - * Workaround for ID strings that have a leading asterisk. This construct - * is not allowed by the ACPI specification (ID strings must be - * alphanumeric), but enough existing machines have this embedded in their - * ID strings that the following code is useful. - */ - if (*source == '*') { - source++; - } - - /* Do the actual copy */ - - ACPI_STRNCPY(destination, source, max_length); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_execute_HID - * - * PARAMETERS: device_node - Node for the device - * Hid - Where the HID is returned - * - * RETURN: Status - * - * DESCRIPTION: Executes the _HID control method that returns the hardware - * ID of the device. - * - * NOTE: Internal function, no parameter validation - * - ******************************************************************************/ - -acpi_status -acpi_ut_execute_HID(struct acpi_namespace_node *device_node, - struct acpica_device_id *hid) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - - ACPI_FUNCTION_TRACE(ut_execute_HID); - - status = acpi_ut_evaluate_object(device_node, METHOD_NAME__HID, - ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING, - &obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (obj_desc->common.type == ACPI_TYPE_INTEGER) { - - /* Convert the Numeric HID to string */ - - acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value, - hid->value); - } else { - /* Copy the String HID from the returned object */ - - acpi_ut_copy_id_string(hid->value, obj_desc->string.pointer, - sizeof(hid->value)); - } - - /* On exit, we must delete the return object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_translate_one_cid - * - * PARAMETERS: obj_desc - _CID object, must be integer or string - * one_cid - Where the CID string is returned - * - * RETURN: Status - * - * DESCRIPTION: Return a numeric or string _CID value as a string. - * (Compatible ID) - * - * NOTE: Assumes a maximum _CID string length of - * ACPI_MAX_CID_LENGTH. - * - ******************************************************************************/ - -static acpi_status -acpi_ut_translate_one_cid(union acpi_operand_object *obj_desc, - struct acpi_compatible_id *one_cid) -{ - - switch (obj_desc->common.type) { - case ACPI_TYPE_INTEGER: - - /* Convert the Numeric CID to string */ - - acpi_ex_eisa_id_to_string((u32) obj_desc->integer.value, - one_cid->value); - return (AE_OK); - - case ACPI_TYPE_STRING: - - if (obj_desc->string.length > ACPI_MAX_CID_LENGTH) { - return (AE_AML_STRING_LIMIT); - } - - /* Copy the String CID from the returned object */ - - acpi_ut_copy_id_string(one_cid->value, obj_desc->string.pointer, - ACPI_MAX_CID_LENGTH); - return (AE_OK); - - default: - - return (AE_TYPE); - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_execute_CID - * - * PARAMETERS: device_node - Node for the device - * return_cid_list - Where the CID list is returned - * - * RETURN: Status - * - * DESCRIPTION: Executes the _CID control method that returns one or more - * compatible hardware IDs for the device. - * - * NOTE: Internal function, no parameter validation - * - ******************************************************************************/ - -acpi_status -acpi_ut_execute_CID(struct acpi_namespace_node * device_node, - struct acpi_compatible_id_list ** return_cid_list) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - u32 count; - u32 size; - struct acpi_compatible_id_list *cid_list; - u32 i; - - ACPI_FUNCTION_TRACE(ut_execute_CID); - - /* Evaluate the _CID method for this device */ - - status = acpi_ut_evaluate_object(device_node, METHOD_NAME__CID, - ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING - | ACPI_BTYPE_PACKAGE, &obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - /* Get the number of _CIDs returned */ - - count = 1; - if (obj_desc->common.type == ACPI_TYPE_PACKAGE) { - count = obj_desc->package.count; - } - - /* Allocate a worst-case buffer for the _CIDs */ - - size = (((count - 1) * sizeof(struct acpi_compatible_id)) + - sizeof(struct acpi_compatible_id_list)); - - cid_list = ACPI_ALLOCATE_ZEROED((acpi_size) size); - if (!cid_list) { - return_ACPI_STATUS(AE_NO_MEMORY); - } - - /* Init CID list */ - - cid_list->count = count; - cid_list->size = size; - - /* - * A _CID can return either a single compatible ID or a package of - * compatible IDs. Each compatible ID can be one of the following: - * 1) Integer (32 bit compressed EISA ID) or - * 2) String (PCI ID format, e.g. "PCI\VEN_vvvv&DEV_dddd&SUBSYS_ssssssss") - */ - - /* The _CID object can be either a single CID or a package (list) of CIDs */ - - if (obj_desc->common.type == ACPI_TYPE_PACKAGE) { - - /* Translate each package element */ - - for (i = 0; i < count; i++) { - status = - acpi_ut_translate_one_cid(obj_desc->package. - elements[i], - &cid_list->id[i]); - if (ACPI_FAILURE(status)) { - break; - } - } - } else { - /* Only one CID, translate to a string */ - - status = acpi_ut_translate_one_cid(obj_desc, cid_list->id); - } - - /* Cleanup on error */ - - if (ACPI_FAILURE(status)) { - ACPI_FREE(cid_list); - } else { - *return_cid_list = cid_list; - } - - /* On exit, we must delete the _CID return object */ - - acpi_ut_remove_reference(obj_desc); - return_ACPI_STATUS(status); -} - -/******************************************************************************* - * - * FUNCTION: acpi_ut_execute_UID - * - * PARAMETERS: device_node - Node for the device - * Uid - Where the UID is returned - * - * RETURN: Status - * - * DESCRIPTION: Executes the _UID control method that returns the hardware - * ID of the device. - * - * NOTE: Internal function, no parameter validation - * - ******************************************************************************/ - -acpi_status -acpi_ut_execute_UID(struct acpi_namespace_node *device_node, - struct acpica_device_id *uid) -{ - union acpi_operand_object *obj_desc; - acpi_status status; - - ACPI_FUNCTION_TRACE(ut_execute_UID); - - status = acpi_ut_evaluate_object(device_node, METHOD_NAME__UID, - ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING, - &obj_desc); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } - - if (obj_desc->common.type == ACPI_TYPE_INTEGER) { - - /* Convert the Numeric UID to string */ - - acpi_ex_unsigned_integer_to_string(obj_desc->integer.value, - uid->value); - } else { - /* Copy the String UID from the returned object */ - - acpi_ut_copy_id_string(uid->value, obj_desc->string.pointer, - sizeof(uid->value)); - } + *value = obj_desc->integer.value; /* On exit, we must delete the return object */ @@ -716,60 +422,64 @@ acpi_ut_execute_STA(struct acpi_namespace_node *device_node, u32 * flags) /******************************************************************************* * - * FUNCTION: acpi_ut_execute_Sxds + * FUNCTION: acpi_ut_execute_power_methods * * PARAMETERS: device_node - Node for the device - * Flags - Where the status flags are returned + * method_names - Array of power method names + * method_count - Number of methods to execute + * out_values - Where the power method values are returned * - * RETURN: Status + * RETURN: Status, out_values * - * DESCRIPTION: Executes _STA for selected device and stores results in - * *Flags. + * DESCRIPTION: Executes the specified power methods for the device and returns + * the result(s). * * NOTE: Internal function, no parameter validation * - ******************************************************************************/ +******************************************************************************/ acpi_status -acpi_ut_execute_sxds(struct acpi_namespace_node *device_node, u8 * highest) +acpi_ut_execute_power_methods(struct acpi_namespace_node *device_node, + const char **method_names, + u8 method_count, u8 *out_values) { union acpi_operand_object *obj_desc; acpi_status status; + acpi_status final_status = AE_NOT_FOUND; u32 i; - ACPI_FUNCTION_TRACE(ut_execute_sxds); + ACPI_FUNCTION_TRACE(ut_execute_power_methods); - for (i = 0; i < 4; i++) { - highest[i] = 0xFF; + for (i = 0; i < method_count; i++) { + /* + * Execute the power method (_sx_d or _sx_w). The only allowable + * return type is an Integer. + */ status = acpi_ut_evaluate_object(device_node, ACPI_CAST_PTR(char, - acpi_gbl_highest_dstate_names - [i]), + method_names[i]), ACPI_BTYPE_INTEGER, &obj_desc); - if (ACPI_FAILURE(status)) { - if (status != AE_NOT_FOUND) { - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "%s on Device %4.4s, %s\n", - ACPI_CAST_PTR(char, - acpi_gbl_highest_dstate_names - [i]), - acpi_ut_get_node_name - (device_node), - acpi_format_exception - (status))); - - return_ACPI_STATUS(status); - } - } else { - /* Extract the Dstate value */ - - highest[i] = (u8) obj_desc->integer.value; + if (ACPI_SUCCESS(status)) { + out_values[i] = (u8)obj_desc->integer.value; /* Delete the return object */ acpi_ut_remove_reference(obj_desc); + final_status = AE_OK; /* At least one value is valid */ + continue; } + + out_values[i] = ACPI_UINT8_MAX; + if (status == AE_NOT_FOUND) { + continue; /* Ignore if not found */ + } + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Failed %s on Device %4.4s, %s\n", + ACPI_CAST_PTR(char, method_names[i]), + acpi_ut_get_node_name(device_node), + acpi_format_exception(status))); } - return_ACPI_STATUS(AE_OK); + return_ACPI_STATUS(final_status); } diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c index 59e46f257c02..3f2c68f4e959 100644 --- a/drivers/acpi/acpica/utglobal.c +++ b/drivers/acpi/acpica/utglobal.c @@ -90,7 +90,15 @@ const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = { "\\_S5_" }; -const char *acpi_gbl_highest_dstate_names[4] = { +const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS] = { + "_S0W", + "_S1W", + "_S2W", + "_S3W", + "_S4W" +}; + +const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS] = { "_S1D", "_S2D", "_S3D", @@ -351,6 +359,7 @@ const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS] = { "SMBus", "SystemCMOS", "PCIBARTarget", + "IPMI", "DataTable" }; @@ -798,6 +807,7 @@ acpi_status acpi_ut_init_globals(void) /* Namespace */ + acpi_gbl_module_code_list = NULL; acpi_gbl_root_node = NULL; acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME; acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED; diff --git a/drivers/acpi/acpica/utids.c b/drivers/acpi/acpica/utids.c new file mode 100644 index 000000000000..52eaae404554 --- /dev/null +++ b/drivers/acpi/acpica/utids.c @@ -0,0 +1,382 @@ +/****************************************************************************** + * + * Module Name: utids - support for device IDs - HID, UID, CID + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2009, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acinterp.h" + +#define _COMPONENT ACPI_UTILITIES +ACPI_MODULE_NAME("utids") + +/* Local prototypes */ +static void acpi_ut_copy_id_string(char *destination, char *source); + +/******************************************************************************* + * + * FUNCTION: acpi_ut_copy_id_string + * + * PARAMETERS: Destination - Where to copy the string + * Source - Source string + * + * RETURN: None + * + * DESCRIPTION: Copies an ID string for the _HID, _CID, and _UID methods. + * Performs removal of a leading asterisk if present -- workaround + * for a known issue on a bunch of machines. + * + ******************************************************************************/ + +static void acpi_ut_copy_id_string(char *destination, char *source) +{ + + /* + * Workaround for ID strings that have a leading asterisk. This construct + * is not allowed by the ACPI specification (ID strings must be + * alphanumeric), but enough existing machines have this embedded in their + * ID strings that the following code is useful. + */ + if (*source == '*') { + source++; + } + + /* Do the actual copy */ + + ACPI_STRCPY(destination, source); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_execute_HID + * + * PARAMETERS: device_node - Node for the device + * return_id - Where the string HID is returned + * + * RETURN: Status + * + * DESCRIPTION: Executes the _HID control method that returns the hardware + * ID of the device. The HID is either an 32-bit encoded EISAID + * Integer or a String. A string is always returned. An EISAID + * is converted to a string. + * + * NOTE: Internal function, no parameter validation + * + ******************************************************************************/ + +acpi_status +acpi_ut_execute_HID(struct acpi_namespace_node *device_node, + struct acpica_device_id **return_id) +{ + union acpi_operand_object *obj_desc; + struct acpica_device_id *hid; + u32 length; + acpi_status status; + + ACPI_FUNCTION_TRACE(ut_execute_HID); + + status = acpi_ut_evaluate_object(device_node, METHOD_NAME__HID, + ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING, + &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Get the size of the String to be returned, includes null terminator */ + + if (obj_desc->common.type == ACPI_TYPE_INTEGER) { + length = ACPI_EISAID_STRING_SIZE; + } else { + length = obj_desc->string.length + 1; + } + + /* Allocate a buffer for the HID */ + + hid = + ACPI_ALLOCATE_ZEROED(sizeof(struct acpica_device_id) + + (acpi_size) length); + if (!hid) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* Area for the string starts after DEVICE_ID struct */ + + hid->string = ACPI_ADD_PTR(char, hid, sizeof(struct acpica_device_id)); + + /* Convert EISAID to a string or simply copy existing string */ + + if (obj_desc->common.type == ACPI_TYPE_INTEGER) { + acpi_ex_eisa_id_to_string(hid->string, obj_desc->integer.value); + } else { + acpi_ut_copy_id_string(hid->string, obj_desc->string.pointer); + } + + hid->length = length; + *return_id = hid; + +cleanup: + + /* On exit, we must delete the return object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_execute_UID + * + * PARAMETERS: device_node - Node for the device + * return_id - Where the string UID is returned + * + * RETURN: Status + * + * DESCRIPTION: Executes the _UID control method that returns the unique + * ID of the device. The UID is either a 64-bit Integer (NOT an + * EISAID) or a string. Always returns a string. A 64-bit integer + * is converted to a decimal string. + * + * NOTE: Internal function, no parameter validation + * + ******************************************************************************/ + +acpi_status +acpi_ut_execute_UID(struct acpi_namespace_node *device_node, + struct acpica_device_id **return_id) +{ + union acpi_operand_object *obj_desc; + struct acpica_device_id *uid; + u32 length; + acpi_status status; + + ACPI_FUNCTION_TRACE(ut_execute_UID); + + status = acpi_ut_evaluate_object(device_node, METHOD_NAME__UID, + ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING, + &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Get the size of the String to be returned, includes null terminator */ + + if (obj_desc->common.type == ACPI_TYPE_INTEGER) { + length = ACPI_MAX64_DECIMAL_DIGITS + 1; + } else { + length = obj_desc->string.length + 1; + } + + /* Allocate a buffer for the UID */ + + uid = + ACPI_ALLOCATE_ZEROED(sizeof(struct acpica_device_id) + + (acpi_size) length); + if (!uid) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* Area for the string starts after DEVICE_ID struct */ + + uid->string = ACPI_ADD_PTR(char, uid, sizeof(struct acpica_device_id)); + + /* Convert an Integer to string, or just copy an existing string */ + + if (obj_desc->common.type == ACPI_TYPE_INTEGER) { + acpi_ex_integer_to_string(uid->string, obj_desc->integer.value); + } else { + acpi_ut_copy_id_string(uid->string, obj_desc->string.pointer); + } + + uid->length = length; + *return_id = uid; + +cleanup: + + /* On exit, we must delete the return object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ut_execute_CID + * + * PARAMETERS: device_node - Node for the device + * return_cid_list - Where the CID list is returned + * + * RETURN: Status, list of CID strings + * + * DESCRIPTION: Executes the _CID control method that returns one or more + * compatible hardware IDs for the device. + * + * NOTE: Internal function, no parameter validation + * + * A _CID method can return either a single compatible ID or a package of + * compatible IDs. Each compatible ID can be one of the following: + * 1) Integer (32 bit compressed EISA ID) or + * 2) String (PCI ID format, e.g. "PCI\VEN_vvvv&DEV_dddd&SUBSYS_ssssssss") + * + * The Integer CIDs are converted to string format by this function. + * + ******************************************************************************/ + +acpi_status +acpi_ut_execute_CID(struct acpi_namespace_node *device_node, + struct acpica_device_id_list **return_cid_list) +{ + union acpi_operand_object **cid_objects; + union acpi_operand_object *obj_desc; + struct acpica_device_id_list *cid_list; + char *next_id_string; + u32 string_area_size; + u32 length; + u32 cid_list_size; + acpi_status status; + u32 count; + u32 i; + + ACPI_FUNCTION_TRACE(ut_execute_CID); + + /* Evaluate the _CID method for this device */ + + status = acpi_ut_evaluate_object(device_node, METHOD_NAME__CID, + ACPI_BTYPE_INTEGER | ACPI_BTYPE_STRING + | ACPI_BTYPE_PACKAGE, &obj_desc); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* + * Get the count and size of the returned _CIDs. _CID can return either + * a Package of Integers/Strings or a single Integer or String. + * Note: This section also validates that all CID elements are of the + * correct type (Integer or String). + */ + if (obj_desc->common.type == ACPI_TYPE_PACKAGE) { + count = obj_desc->package.count; + cid_objects = obj_desc->package.elements; + } else { /* Single Integer or String CID */ + + count = 1; + cid_objects = &obj_desc; + } + + string_area_size = 0; + for (i = 0; i < count; i++) { + + /* String lengths include null terminator */ + + switch (cid_objects[i]->common.type) { + case ACPI_TYPE_INTEGER: + string_area_size += ACPI_EISAID_STRING_SIZE; + break; + + case ACPI_TYPE_STRING: + string_area_size += cid_objects[i]->string.length + 1; + break; + + default: + status = AE_TYPE; + goto cleanup; + } + } + + /* + * Now that we know the length of the CIDs, allocate return buffer: + * 1) Size of the base structure + + * 2) Size of the CID DEVICE_ID array + + * 3) Size of the actual CID strings + */ + cid_list_size = sizeof(struct acpica_device_id_list) + + ((count - 1) * sizeof(struct acpica_device_id)) + string_area_size; + + cid_list = ACPI_ALLOCATE_ZEROED(cid_list_size); + if (!cid_list) { + status = AE_NO_MEMORY; + goto cleanup; + } + + /* Area for CID strings starts after the CID DEVICE_ID array */ + + next_id_string = ACPI_CAST_PTR(char, cid_list->ids) + + ((acpi_size) count * sizeof(struct acpica_device_id)); + + /* Copy/convert the CIDs to the return buffer */ + + for (i = 0; i < count; i++) { + if (cid_objects[i]->common.type == ACPI_TYPE_INTEGER) { + + /* Convert the Integer (EISAID) CID to a string */ + + acpi_ex_eisa_id_to_string(next_id_string, + cid_objects[i]->integer. + value); + length = ACPI_EISAID_STRING_SIZE; + } else { /* ACPI_TYPE_STRING */ + + /* Copy the String CID from the returned object */ + + acpi_ut_copy_id_string(next_id_string, + cid_objects[i]->string.pointer); + length = cid_objects[i]->string.length + 1; + } + + cid_list->ids[i].string = next_id_string; + cid_list->ids[i].length = length; + next_id_string += length; + } + + /* Finish the CID list */ + + cid_list->count = count; + cid_list->list_size = cid_list_size; + *return_cid_list = cid_list; + +cleanup: + + /* On exit, we must delete the _CID return object */ + + acpi_ut_remove_reference(obj_desc); + return_ACPI_STATUS(status); +} diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c index a54ca84eb362..9d0919ebf7b0 100644 --- a/drivers/acpi/acpica/utinit.c +++ b/drivers/acpi/acpica/utinit.c @@ -99,33 +99,19 @@ static void acpi_ut_terminate(void) * * FUNCTION: acpi_ut_subsystem_shutdown * - * PARAMETERS: none + * PARAMETERS: None * - * RETURN: none + * RETURN: None * - * DESCRIPTION: Shutdown the various subsystems. Don't delete the mutex - * objects here -- because the AML debugger may be still running. + * DESCRIPTION: Shutdown the various components. Do not delete the mutex + * objects here, because the AML debugger may be still running. * ******************************************************************************/ void acpi_ut_subsystem_shutdown(void) { - ACPI_FUNCTION_TRACE(ut_subsystem_shutdown); - /* Just exit if subsystem is already shutdown */ - - if (acpi_gbl_shutdown) { - ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated")); - return_VOID; - } - - /* Subsystem appears active, go ahead and shut it down */ - - acpi_gbl_shutdown = TRUE; - acpi_gbl_startup_flags = 0; - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); - #ifndef ACPI_ASL_COMPILER /* Close the acpi_event Handling */ diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c index fbe782348b0b..61f6315fce9f 100644 --- a/drivers/acpi/acpica/utmisc.c +++ b/drivers/acpi/acpica/utmisc.c @@ -50,6 +50,11 @@ #define _COMPONENT ACPI_UTILITIES ACPI_MODULE_NAME("utmisc") +/* + * Common suffix for messages + */ +#define ACPI_COMMON_MSG_SUFFIX \ + acpi_os_printf(" (%8.8X/%s-%u)\n", ACPI_CA_VERSION, module_name, line_number) /******************************************************************************* * * FUNCTION: acpi_ut_validate_exception @@ -120,6 +125,34 @@ const char *acpi_ut_validate_exception(acpi_status status) /******************************************************************************* * + * FUNCTION: acpi_ut_is_pci_root_bridge + * + * PARAMETERS: Id - The HID/CID in string format + * + * RETURN: TRUE if the Id is a match for a PCI/PCI-Express Root Bridge + * + * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID. + * + ******************************************************************************/ + +u8 acpi_ut_is_pci_root_bridge(char *id) +{ + + /* + * Check if this is a PCI root bridge. + * ACPI 3.0+: check for a PCI Express root also. + */ + if (!(ACPI_STRCMP(id, + PCI_ROOT_HID_STRING)) || + !(ACPI_STRCMP(id, PCI_EXPRESS_ROOT_HID_STRING))) { + return (TRUE); + } + + return (FALSE); +} + +/******************************************************************************* + * * FUNCTION: acpi_ut_is_aml_table * * PARAMETERS: Table - An ACPI table @@ -1037,8 +1070,7 @@ acpi_error(const char *module_name, u32 line_number, const char *format, ...) va_start(args, format); acpi_os_vprintf(format, args); - acpi_os_printf(" %8.8X %s-%u\n", ACPI_CA_VERSION, module_name, - line_number); + ACPI_COMMON_MSG_SUFFIX; va_end(args); } @@ -1052,8 +1084,7 @@ acpi_exception(const char *module_name, va_start(args, format); acpi_os_vprintf(format, args); - acpi_os_printf(" %8.8X %s-%u\n", ACPI_CA_VERSION, module_name, - line_number); + ACPI_COMMON_MSG_SUFFIX; va_end(args); } @@ -1066,8 +1097,7 @@ acpi_warning(const char *module_name, u32 line_number, const char *format, ...) va_start(args, format); acpi_os_vprintf(format, args); - acpi_os_printf(" %8.8X %s-%u\n", ACPI_CA_VERSION, module_name, - line_number); + ACPI_COMMON_MSG_SUFFIX; va_end(args); } @@ -1088,3 +1118,46 @@ ACPI_EXPORT_SYMBOL(acpi_error) ACPI_EXPORT_SYMBOL(acpi_exception) ACPI_EXPORT_SYMBOL(acpi_warning) ACPI_EXPORT_SYMBOL(acpi_info) + +/******************************************************************************* + * + * FUNCTION: acpi_ut_predefined_warning + * + * PARAMETERS: module_name - Caller's module name (for error output) + * line_number - Caller's line number (for error output) + * Pathname - Full pathname to the node + * node_flags - From Namespace node for the method/object + * Format - Printf format string + additional args + * + * RETURN: None + * + * DESCRIPTION: Warnings for the predefined validation module. Messages are + * only emitted the first time a problem with a particular + * method/object is detected. This prevents a flood of error + * messages for methods that are repeatedly evaluated. + * +******************************************************************************/ + +void ACPI_INTERNAL_VAR_XFACE +acpi_ut_predefined_warning(const char *module_name, + u32 line_number, + char *pathname, + u8 node_flags, const char *format, ...) +{ + va_list args; + + /* + * Warning messages for this method/object will be disabled after the + * first time a validation fails or an object is successfully repaired. + */ + if (node_flags & ANOBJ_EVALUATED) { + return; + } + + acpi_os_printf("ACPI Warning for %s: ", pathname); + + va_start(args, format); + acpi_os_vprintf(format, args); + ACPI_COMMON_MSG_SUFFIX; + va_end(args); +} diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c index 078a22728c6b..b1f5f680bc78 100644 --- a/drivers/acpi/acpica/utxface.c +++ b/drivers/acpi/acpica/utxface.c @@ -251,6 +251,16 @@ acpi_status acpi_initialize_objects(u32 flags) } /* + * Execute any module-level code that was detected during the table load + * phase. Although illegal since ACPI 2.0, there are many machines that + * contain this type of code. Each block of detected executable AML code + * outside of any control method is wrapped with a temporary control + * method object and placed on a global list. The methods on this list + * are executed below. + */ + acpi_ns_exec_module_code_list(); + + /* * Initialize the objects that remain uninitialized. This runs the * executable AML that may be part of the declaration of these objects: * operation_regions, buffer_fields, Buffers, and Packages. @@ -318,7 +328,7 @@ ACPI_EXPORT_SYMBOL(acpi_initialize_objects) * * RETURN: Status * - * DESCRIPTION: Shutdown the ACPI subsystem. Release all resources. + * DESCRIPTION: Shutdown the ACPICA subsystem and release all resources. * ******************************************************************************/ acpi_status acpi_terminate(void) @@ -327,6 +337,19 @@ acpi_status acpi_terminate(void) ACPI_FUNCTION_TRACE(acpi_terminate); + /* Just exit if subsystem is already shutdown */ + + if (acpi_gbl_shutdown) { + ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated")); + return_ACPI_STATUS(AE_OK); + } + + /* Subsystem appears active, go ahead and shut it down */ + + acpi_gbl_shutdown = TRUE; + acpi_gbl_startup_flags = 0; + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); + /* Terminate the AML Debugger if present */ ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = TRUE); @@ -353,6 +376,7 @@ acpi_status acpi_terminate(void) } ACPI_EXPORT_SYMBOL(acpi_terminate) + #ifndef ACPI_ASL_COMPILER #ifdef ACPI_FUTURE_USAGE /******************************************************************************* diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 58b4517ce712..3f4602b8f287 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -31,6 +31,7 @@ #include <linux/types.h> #include <linux/jiffies.h> #include <linux/async.h> +#include <linux/dmi.h> #ifdef CONFIG_ACPI_PROCFS_POWER #include <linux/proc_fs.h> @@ -45,6 +46,8 @@ #include <linux/power_supply.h> #endif +#define PREFIX "ACPI: " + #define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF #define ACPI_BATTERY_CLASS "battery" @@ -85,6 +88,10 @@ static const struct acpi_device_id battery_device_ids[] = { 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 struct acpi_battery { struct mutex lock; @@ -112,6 +119,7 @@ struct acpi_battery { int state; int power_unit; u8 alarm_present; + long quirks; }; #define to_acpi_battery(x) container_of(x, struct acpi_battery, bat); @@ -390,6 +398,11 @@ static int acpi_battery_get_state(struct acpi_battery *battery) state_offsets, ARRAY_SIZE(state_offsets)); battery->update_time = jiffies; kfree(buffer.pointer); + + if ((battery->quirks & QUIRK_SIGNED16_CURRENT) && + battery->rate_now != -1) + battery->rate_now = abs((s16)battery->rate_now); + return result; } @@ -495,6 +508,14 @@ static void sysfs_remove_battery(struct acpi_battery *battery) } #endif +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; + } +} + static int acpi_battery_update(struct acpi_battery *battery) { int result, old_present = acpi_battery_present(battery); @@ -513,6 +534,7 @@ static int acpi_battery_update(struct acpi_battery *battery) result = acpi_battery_get_info(battery); if (result) return result; + acpi_battery_quirks(battery); acpi_battery_init_alarm(battery); } #ifdef CONFIG_ACPI_SYSFS_POWER diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index f6baa77deefb..e56b2a7b53db 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -34,6 +34,8 @@ #include <acpi/acpi_bus.h> #include <linux/dmi.h> +#include "internal.h" + enum acpi_blacklist_predicates { all_versions, less_than_or_equal, @@ -78,9 +80,10 @@ static struct acpi_blacklist_item acpi_blacklist[] __initdata = { static int __init blacklist_by_year(void) { - int year = dmi_get_year(DMI_BIOS_DATE); + int year; + /* Doesn't exist? Likely an old system */ - if (year == -1) { + if (!dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL)) { printk(KERN_ERR PREFIX "no DMI BIOS year, " "acpi=force is required to enable ACPI\n" ); return 1; diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 2876fc70c3a9..741191524353 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -38,6 +38,7 @@ #include <linux/pci.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#include <linux/dmi.h> #include "internal.h" @@ -93,36 +94,33 @@ int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device) EXPORT_SYMBOL(acpi_bus_get_device); -int acpi_bus_get_status(struct acpi_device *device) +acpi_status acpi_bus_get_status_handle(acpi_handle handle, + unsigned long long *sta) { - acpi_status status = AE_OK; - unsigned long long sta = 0; - + acpi_status status; - if (!device) - return -EINVAL; + status = acpi_evaluate_integer(handle, "_STA", NULL, sta); + if (ACPI_SUCCESS(status)) + return AE_OK; - /* - * Evaluate _STA if present. - */ - if (device->flags.dynamic_status) { - status = - acpi_evaluate_integer(device->handle, "_STA", NULL, &sta); - if (ACPI_FAILURE(status)) - return -ENODEV; - STRUCT_TO_INT(device->status) = (int)sta; + if (status == AE_NOT_FOUND) { + *sta = ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | + ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING; + return AE_OK; } + return status; +} - /* - * According to ACPI spec some device can be present and functional - * even if the parent is not present but functional. - * In such conditions the child device should not inherit the status - * from the parent. - */ - else - STRUCT_TO_INT(device->status) = - ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | - ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING; +int acpi_bus_get_status(struct acpi_device *device) +{ + acpi_status status; + unsigned long long sta; + + status = acpi_bus_get_status_handle(device->handle, &sta); + if (ACPI_FAILURE(status)) + return -ENODEV; + + STRUCT_TO_INT(device->status) = (int) sta; if (device->status.functional && !device->status.present) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]: " @@ -134,14 +132,12 @@ int acpi_bus_get_status(struct acpi_device *device) ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]\n", device->pnp.bus_id, (u32) STRUCT_TO_INT(device->status))); - return 0; } - EXPORT_SYMBOL(acpi_bus_get_status); void acpi_bus_private_data_handler(acpi_handle handle, - u32 function, void *context) + void *context) { return; } diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index 9195deba9d94..9335b87c5174 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -33,6 +33,8 @@ #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#define PREFIX "ACPI: " + #define ACPI_BUTTON_CLASS "button" #define ACPI_BUTTON_FILE_INFO "info" #define ACPI_BUTTON_FILE_STATE "state" @@ -113,6 +115,9 @@ static const struct file_operations acpi_button_state_fops = { .release = single_release, }; +static BLOCKING_NOTIFIER_HEAD(acpi_lid_notifier); +static struct acpi_device *lid_device; + /* -------------------------------------------------------------------------- FS Interface (/proc) -------------------------------------------------------------------------- */ @@ -229,11 +234,38 @@ static int acpi_button_remove_fs(struct acpi_device *device) /* -------------------------------------------------------------------------- Driver Interface -------------------------------------------------------------------------- */ +int acpi_lid_notifier_register(struct notifier_block *nb) +{ + return blocking_notifier_chain_register(&acpi_lid_notifier, nb); +} +EXPORT_SYMBOL(acpi_lid_notifier_register); + +int acpi_lid_notifier_unregister(struct notifier_block *nb) +{ + return blocking_notifier_chain_unregister(&acpi_lid_notifier, nb); +} +EXPORT_SYMBOL(acpi_lid_notifier_unregister); + +int acpi_lid_open(void) +{ + acpi_status status; + unsigned long long state; + + status = acpi_evaluate_integer(lid_device->handle, "_LID", NULL, + &state); + if (ACPI_FAILURE(status)) + return -ENODEV; + + return !!state; +} +EXPORT_SYMBOL(acpi_lid_open); + static int acpi_lid_send_state(struct acpi_device *device) { struct acpi_button *button = acpi_driver_data(device); unsigned long long state; acpi_status status; + int ret; status = acpi_evaluate_integer(device->handle, "_LID", NULL, &state); if (ACPI_FAILURE(status)) @@ -242,7 +274,12 @@ static int acpi_lid_send_state(struct acpi_device *device) /* input layer checks if event is redundant */ input_report_switch(button->input, SW_LID, !state); input_sync(button->input); - return 0; + + ret = blocking_notifier_call_chain(&acpi_lid_notifier, state, device); + if (ret == NOTIFY_DONE) + ret = blocking_notifier_call_chain(&acpi_lid_notifier, state, + device); + return ret; } static void acpi_button_notify(struct acpi_device *device, u32 event) @@ -364,8 +401,14 @@ static int acpi_button_add(struct acpi_device *device) error = input_register_device(input); if (error) goto err_remove_fs; - if (button->type == ACPI_BUTTON_TYPE_LID) + if (button->type == ACPI_BUTTON_TYPE_LID) { acpi_lid_send_state(device); + /* + * This assumes there's only one lid device, or if there are + * more we only care about the last one... + */ + lid_device = device; + } if (device->wakeup.flags.valid) { /* Button's GPE is run-wake GPE */ diff --git a/drivers/acpi/cm_sbs.c b/drivers/acpi/cm_sbs.c index 332fe4b21708..6c9ee68e46fb 100644 --- a/drivers/acpi/cm_sbs.c +++ b/drivers/acpi/cm_sbs.c @@ -28,6 +28,8 @@ #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#define PREFIX "ACPI: " + ACPI_MODULE_NAME("cm_sbs"); #define ACPI_AC_CLASS "ac_adapter" #define ACPI_BATTERY_CLASS "battery" diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c index fe0cdf83641a..642bb305cb65 100644 --- a/drivers/acpi/container.c +++ b/drivers/acpi/container.c @@ -35,6 +35,8 @@ #include <acpi/acpi_drivers.h> #include <acpi/container.h> +#define PREFIX "ACPI: " + #define ACPI_CONTAINER_DEVICE_NAME "ACPI container device" #define ACPI_CONTAINER_CLASS "container" @@ -200,20 +202,17 @@ container_walk_namespace_cb(acpi_handle handle, u32 lvl, void *context, void **rv) { char *hid = NULL; - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; struct acpi_device_info *info; acpi_status status; int *action = context; - - status = acpi_get_object_info(handle, &buffer); - if (ACPI_FAILURE(status) || !buffer.pointer) { + status = acpi_get_object_info(handle, &info); + if (ACPI_FAILURE(status)) { return AE_OK; } - info = buffer.pointer; if (info->valid & ACPI_VALID_HID) - hid = info->hardware_id.value; + hid = info->hardware_id.string; if (hid == NULL) { goto end; @@ -240,7 +239,7 @@ container_walk_namespace_cb(acpi_handle handle, } end: - kfree(buffer.pointer); + kfree(info); return AE_OK; } diff --git a/drivers/acpi/debug.c b/drivers/acpi/debug.c index a8287be0870e..8a690c3b8e23 100644 --- a/drivers/acpi/debug.c +++ b/drivers/acpi/debug.c @@ -3,6 +3,7 @@ */ #include <linux/proc_fs.h> +#include <linux/seq_file.h> #include <linux/init.h> #include <linux/module.h> #include <linux/kernel.h> @@ -201,72 +202,54 @@ module_param_call(trace_state, param_set_trace_state, param_get_trace_state, #define ACPI_SYSTEM_FILE_DEBUG_LAYER "debug_layer" #define ACPI_SYSTEM_FILE_DEBUG_LEVEL "debug_level" -static int -acpi_system_read_debug(char *page, - char **start, off_t off, int count, int *eof, void *data) +static int acpi_system_debug_proc_show(struct seq_file *m, void *v) { - char *p = page; - int size = 0; unsigned int i; - if (off != 0) - goto end; + seq_printf(m, "%-25s\tHex SET\n", "Description"); - p += sprintf(p, "%-25s\tHex SET\n", "Description"); - - switch ((unsigned long)data) { + switch ((unsigned long)m->private) { case 0: for (i = 0; i < ARRAY_SIZE(acpi_debug_layers); i++) { - p += sprintf(p, "%-25s\t0x%08lX [%c]\n", + seq_printf(m, "%-25s\t0x%08lX [%c]\n", acpi_debug_layers[i].name, acpi_debug_layers[i].value, (acpi_dbg_layer & acpi_debug_layers[i]. value) ? '*' : ' '); } - p += sprintf(p, "%-25s\t0x%08X [%c]\n", "ACPI_ALL_DRIVERS", + seq_printf(m, "%-25s\t0x%08X [%c]\n", "ACPI_ALL_DRIVERS", ACPI_ALL_DRIVERS, (acpi_dbg_layer & ACPI_ALL_DRIVERS) == ACPI_ALL_DRIVERS ? '*' : (acpi_dbg_layer & ACPI_ALL_DRIVERS) == 0 ? ' ' : '-'); - p += sprintf(p, + seq_printf(m, "--\ndebug_layer = 0x%08X (* = enabled, - = partial)\n", acpi_dbg_layer); break; case 1: for (i = 0; i < ARRAY_SIZE(acpi_debug_levels); i++) { - p += sprintf(p, "%-25s\t0x%08lX [%c]\n", + seq_printf(m, "%-25s\t0x%08lX [%c]\n", acpi_debug_levels[i].name, acpi_debug_levels[i].value, (acpi_dbg_level & acpi_debug_levels[i]. value) ? '*' : ' '); } - p += sprintf(p, "--\ndebug_level = 0x%08X (* = enabled)\n", + seq_printf(m, "--\ndebug_level = 0x%08X (* = enabled)\n", acpi_dbg_level); break; - default: - p += sprintf(p, "Invalid debug option\n"); - break; } + return 0; +} - end: - size = (p - page); - if (size <= off + count) - *eof = 1; - *start = page + off; - size -= off; - if (size > count) - size = count; - if (size < 0) - size = 0; - - return size; +static int acpi_system_debug_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, acpi_system_debug_proc_show, PDE(inode)->data); } -static int -acpi_system_write_debug(struct file *file, +static ssize_t acpi_system_debug_proc_write(struct file *file, const char __user * buffer, - unsigned long count, void *data) + size_t count, loff_t *pos) { char debug_string[12] = { '\0' }; @@ -279,7 +262,7 @@ acpi_system_write_debug(struct file *file, debug_string[count] = '\0'; - switch ((unsigned long)data) { + switch ((unsigned long)PDE(file->f_path.dentry->d_inode)->data) { case 0: acpi_dbg_layer = simple_strtoul(debug_string, NULL, 0); break; @@ -292,6 +275,15 @@ acpi_system_write_debug(struct file *file, return count; } + +static const struct file_operations acpi_system_debug_proc_fops = { + .owner = THIS_MODULE, + .open = acpi_system_debug_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .write = acpi_system_debug_proc_write, +}; #endif int __init acpi_debug_init(void) @@ -303,24 +295,18 @@ int __init acpi_debug_init(void) /* 'debug_layer' [R/W] */ name = ACPI_SYSTEM_FILE_DEBUG_LAYER; - entry = - create_proc_read_entry(name, S_IFREG | S_IRUGO | S_IWUSR, - acpi_root_dir, acpi_system_read_debug, - (void *)0); - if (entry) - entry->write_proc = acpi_system_write_debug; - else + entry = proc_create_data(name, S_IFREG | S_IRUGO | S_IWUSR, + acpi_root_dir, &acpi_system_debug_proc_fops, + (void *)0); + if (!entry) goto Error; /* 'debug_level' [R/W] */ name = ACPI_SYSTEM_FILE_DEBUG_LEVEL; - entry = - create_proc_read_entry(name, S_IFREG | S_IRUGO | S_IWUSR, - acpi_root_dir, acpi_system_read_debug, - (void *)1); - if (entry) - entry->write_proc = acpi_system_write_debug; - else + entry = proc_create_data(name, S_IFREG | S_IRUGO | S_IWUSR, + acpi_root_dir, &acpi_system_debug_proc_fops, + (void *)1); + if (!entry) goto Error; Done: diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index efb959d6c8a9..7338b6a3e049 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -33,6 +33,8 @@ #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#define PREFIX "ACPI: " + #define ACPI_DOCK_DRIVER_DESCRIPTION "ACPI Dock Station Driver" ACPI_MODULE_NAME("dock"); @@ -65,7 +67,7 @@ struct dock_station { struct list_head dependent_devices; struct list_head hotplug_devices; - struct list_head sibiling; + struct list_head sibling; struct platform_device *dock_device; }; static LIST_HEAD(dock_stations); @@ -231,18 +233,16 @@ static int is_ata(acpi_handle handle) static int is_battery(acpi_handle handle) { struct acpi_device_info *info; - struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; int ret = 1; - if (!ACPI_SUCCESS(acpi_get_object_info(handle, &buffer))) + if (!ACPI_SUCCESS(acpi_get_object_info(handle, &info))) return 0; - info = buffer.pointer; if (!(info->valid & ACPI_VALID_HID)) ret = 0; else - ret = !strcmp("PNP0C0A", info->hardware_id.value); + ret = !strcmp("PNP0C0A", info->hardware_id.string); - kfree(buffer.pointer); + kfree(info); return ret; } @@ -275,7 +275,7 @@ int is_dock_device(acpi_handle handle) if (is_dock(handle)) return 1; - list_for_each_entry(dock_station, &dock_stations, sibiling) { + list_for_each_entry(dock_station, &dock_stations, sibling) { if (find_dock_dependent_device(dock_station, handle)) return 1; } @@ -619,7 +619,7 @@ register_hotplug_dock_device(acpi_handle handle, struct acpi_dock_ops *ops, * make sure this handle is for a device dependent on the dock, * this would include the dock station itself */ - list_for_each_entry(dock_station, &dock_stations, sibiling) { + list_for_each_entry(dock_station, &dock_stations, sibling) { /* * An ATA bay can be in a dock and itself can be ejected * seperately, so there are two 'dock stations' which need the @@ -651,7 +651,7 @@ void unregister_hotplug_dock_device(acpi_handle handle) if (!dock_station_count) return; - list_for_each_entry(dock_station, &dock_stations, sibiling) { + list_for_each_entry(dock_station, &dock_stations, sibling) { dd = find_dock_dependent_device(dock_station, handle); if (dd) dock_del_hotplug_device(dock_station, dd); @@ -787,7 +787,7 @@ static int acpi_dock_notifier_call(struct notifier_block *this, if (event != ACPI_NOTIFY_BUS_CHECK && event != ACPI_NOTIFY_DEVICE_CHECK && event != ACPI_NOTIFY_EJECT_REQUEST) return 0; - list_for_each_entry(dock_station, &dock_stations, sibiling) { + list_for_each_entry(dock_station, &dock_stations, sibling) { if (dock_station->handle == handle) { struct dock_data *dock_data; @@ -958,7 +958,7 @@ static int dock_add(acpi_handle handle) dock_station->last_dock_time = jiffies - HZ; INIT_LIST_HEAD(&dock_station->dependent_devices); INIT_LIST_HEAD(&dock_station->hotplug_devices); - INIT_LIST_HEAD(&dock_station->sibiling); + INIT_LIST_HEAD(&dock_station->sibling); spin_lock_init(&dock_station->dd_lock); mutex_init(&dock_station->hp_lock); ATOMIC_INIT_NOTIFIER_HEAD(&dock_notifier_list); @@ -1044,7 +1044,7 @@ static int dock_add(acpi_handle handle) add_dock_dependent_device(dock_station, dd); dock_station_count++; - list_add(&dock_station->sibiling, &dock_stations); + list_add(&dock_station->sibling, &dock_stations); return 0; dock_add_err_unregister: @@ -1149,7 +1149,7 @@ static void __exit dock_exit(void) struct dock_station *tmp; unregister_acpi_bus_notifier(&dock_acpi_notifier); - list_for_each_entry_safe(dock_station, tmp, &dock_stations, sibiling) + list_for_each_entry_safe(dock_station, tmp, &dock_stations, sibling) dock_remove(dock_station); } diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 391f331674c7..baef28c1e630 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -42,12 +42,12 @@ #include <asm/io.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#include <linux/dmi.h> #define ACPI_EC_CLASS "embedded_controller" #define ACPI_EC_DEVICE_NAME "Embedded Controller" #define ACPI_EC_FILE_INFO "info" -#undef PREFIX #define PREFIX "ACPI: EC: " /* EC status register */ @@ -68,15 +68,13 @@ enum ec_command { #define ACPI_EC_DELAY 500 /* Wait 500ms max. during EC ops */ #define ACPI_EC_UDELAY_GLK 1000 /* Wait 1ms max. to get global lock */ #define ACPI_EC_CDELAY 10 /* Wait 10us before polling EC */ +#define ACPI_EC_MSI_UDELAY 550 /* Wait 550us for MSI EC */ #define ACPI_EC_STORM_THRESHOLD 8 /* number of false interrupts per one transaction */ enum { EC_FLAGS_QUERY_PENDING, /* Query is pending */ - EC_FLAGS_GPE_MODE, /* Expect GPE to be sent - * for status change */ - EC_FLAGS_NO_GPE, /* Don't use GPE mode */ EC_FLAGS_GPE_STORM, /* GPE storm detected */ EC_FLAGS_HANDLERS_INSTALLED /* Handlers for GPE and * OpReg are installed */ @@ -121,6 +119,8 @@ static struct acpi_ec { } *boot_ec, *first_ec; static int EC_FLAGS_MSI; /* Out-of-spec MSI controller */ +static int EC_FLAGS_VALIDATE_ECDT; /* ASUStec ECDTs need to be validated */ +static int EC_FLAGS_SKIP_DSDT_SCAN; /* Not all BIOS survive early DSDT scan */ /* -------------------------------------------------------------------------- Transaction Management @@ -170,7 +170,7 @@ static void start_transaction(struct acpi_ec *ec) acpi_ec_write_cmd(ec, ec->curr->command); } -static void gpe_transaction(struct acpi_ec *ec, u8 status) +static void advance_transaction(struct acpi_ec *ec, u8 status) { unsigned long flags; spin_lock_irqsave(&ec->curr_lock, flags); @@ -201,29 +201,6 @@ unlock: spin_unlock_irqrestore(&ec->curr_lock, flags); } -static int acpi_ec_wait(struct acpi_ec *ec) -{ - if (wait_event_timeout(ec->wait, ec_transaction_done(ec), - msecs_to_jiffies(ACPI_EC_DELAY))) - return 0; - /* try restart command if we get any false interrupts */ - if (ec->curr->irq_count && - (acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF) == 0) { - pr_debug(PREFIX "controller reset, restart transaction\n"); - start_transaction(ec); - if (wait_event_timeout(ec->wait, ec_transaction_done(ec), - msecs_to_jiffies(ACPI_EC_DELAY))) - return 0; - } - /* missing GPEs, switch back to poll mode */ - if (printk_ratelimit()) - pr_info(PREFIX "missing confirmations, " - "switch off interrupt mode.\n"); - set_bit(EC_FLAGS_NO_GPE, &ec->flags); - clear_bit(EC_FLAGS_GPE_MODE, &ec->flags); - return 1; -} - static void acpi_ec_gpe_query(void *ec_cxt); static int ec_check_sci(struct acpi_ec *ec, u8 state) @@ -236,43 +213,49 @@ static int ec_check_sci(struct acpi_ec *ec, u8 state) return 0; } -static void ec_delay(void) -{ - /* EC in MSI notebooks don't tolerate delays other than 550 usec */ - if (EC_FLAGS_MSI) - udelay(ACPI_EC_DELAY); - else - /* Use shortest sleep available */ - msleep(1); -} - static int ec_poll(struct acpi_ec *ec) { - unsigned long delay = jiffies + msecs_to_jiffies(ACPI_EC_DELAY); - udelay(ACPI_EC_CDELAY); - while (time_before(jiffies, delay)) { - gpe_transaction(ec, acpi_ec_read_status(ec)); - ec_delay(); - if (ec_transaction_done(ec)) - return 0; + unsigned long flags; + int repeat = 2; /* number of command restarts */ + while (repeat--) { + unsigned long delay = jiffies + + msecs_to_jiffies(ACPI_EC_DELAY); + do { + /* don't sleep with disabled interrupts */ + if (EC_FLAGS_MSI || irqs_disabled()) { + udelay(ACPI_EC_MSI_UDELAY); + if (ec_transaction_done(ec)) + return 0; + } else { + if (wait_event_timeout(ec->wait, + ec_transaction_done(ec), + msecs_to_jiffies(1))) + return 0; + } + advance_transaction(ec, acpi_ec_read_status(ec)); + } while (time_before(jiffies, delay)); + if (acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF) + break; + pr_debug(PREFIX "controller reset, restart transaction\n"); + spin_lock_irqsave(&ec->curr_lock, flags); + start_transaction(ec); + spin_unlock_irqrestore(&ec->curr_lock, flags); } return -ETIME; } static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, - struct transaction *t, - int force_poll) + struct transaction *t) { unsigned long tmp; int ret = 0; pr_debug(PREFIX "transaction start\n"); /* disable GPE during transaction if storm is detected */ if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) { - clear_bit(EC_FLAGS_GPE_MODE, &ec->flags); acpi_disable_gpe(NULL, ec->gpe); } if (EC_FLAGS_MSI) - udelay(ACPI_EC_DELAY); + udelay(ACPI_EC_MSI_UDELAY); /* start transaction */ spin_lock_irqsave(&ec->curr_lock, tmp); /* following two actions should be kept atomic */ @@ -281,11 +264,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, if (ec->curr->command == ACPI_EC_COMMAND_QUERY) clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags); spin_unlock_irqrestore(&ec->curr_lock, tmp); - /* if we selected poll mode or failed in GPE-mode do a poll loop */ - if (force_poll || - !test_bit(EC_FLAGS_GPE_MODE, &ec->flags) || - acpi_ec_wait(ec)) - ret = ec_poll(ec); + ret = ec_poll(ec); pr_debug(PREFIX "transaction end\n"); spin_lock_irqsave(&ec->curr_lock, tmp); ec->curr = NULL; @@ -295,8 +274,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, ec_check_sci(ec, acpi_ec_read_status(ec)); /* it is safe to enable GPE outside of transaction */ acpi_enable_gpe(NULL, ec->gpe); - } else if (test_bit(EC_FLAGS_GPE_MODE, &ec->flags) && - t->irq_count > ACPI_EC_STORM_THRESHOLD) { + } else if (t->irq_count > ACPI_EC_STORM_THRESHOLD) { pr_info(PREFIX "GPE storm detected, " "transactions will use polling mode\n"); set_bit(EC_FLAGS_GPE_STORM, &ec->flags); @@ -314,16 +292,14 @@ static int ec_wait_ibf0(struct acpi_ec *ec) { unsigned long delay = jiffies + msecs_to_jiffies(ACPI_EC_DELAY); /* interrupt wait manually if GPE mode is not active */ - unsigned long timeout = test_bit(EC_FLAGS_GPE_MODE, &ec->flags) ? - msecs_to_jiffies(ACPI_EC_DELAY) : msecs_to_jiffies(1); while (time_before(jiffies, delay)) - if (wait_event_timeout(ec->wait, ec_check_ibf0(ec), timeout)) + if (wait_event_timeout(ec->wait, ec_check_ibf0(ec), + msecs_to_jiffies(1))) return 0; return -ETIME; } -static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t, - int force_poll) +static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t) { int status; u32 glk; @@ -345,7 +321,7 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t, status = -ETIME; goto end; } - status = acpi_ec_transaction_unlocked(ec, t, force_poll); + status = acpi_ec_transaction_unlocked(ec, t); end: if (ec->global_lock) acpi_release_global_lock(glk); @@ -354,10 +330,6 @@ unlock: return status; } -/* - * Note: samsung nv5000 doesn't work with ec burst mode. - * http://bugzilla.kernel.org/show_bug.cgi?id=4980 - */ static int acpi_ec_burst_enable(struct acpi_ec *ec) { u8 d; @@ -365,7 +337,7 @@ static int acpi_ec_burst_enable(struct acpi_ec *ec) .wdata = NULL, .rdata = &d, .wlen = 0, .rlen = 1}; - return acpi_ec_transaction(ec, &t, 0); + return acpi_ec_transaction(ec, &t); } static int acpi_ec_burst_disable(struct acpi_ec *ec) @@ -375,7 +347,7 @@ static int acpi_ec_burst_disable(struct acpi_ec *ec) .wlen = 0, .rlen = 0}; return (acpi_ec_read_status(ec) & ACPI_EC_FLAG_BURST) ? - acpi_ec_transaction(ec, &t, 0) : 0; + acpi_ec_transaction(ec, &t) : 0; } static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 * data) @@ -386,7 +358,7 @@ static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 * data) .wdata = &address, .rdata = &d, .wlen = 1, .rlen = 1}; - result = acpi_ec_transaction(ec, &t, 0); + result = acpi_ec_transaction(ec, &t); *data = d; return result; } @@ -398,7 +370,7 @@ static int acpi_ec_write(struct acpi_ec *ec, u8 address, u8 data) .wdata = wdata, .rdata = NULL, .wlen = 2, .rlen = 0}; - return acpi_ec_transaction(ec, &t, 0); + return acpi_ec_transaction(ec, &t); } /* @@ -466,7 +438,7 @@ int ec_transaction(u8 command, if (!first_ec) return -ENODEV; - return acpi_ec_transaction(first_ec, &t, force_poll); + return acpi_ec_transaction(first_ec, &t); } EXPORT_SYMBOL(ec_transaction); @@ -487,7 +459,7 @@ static int acpi_ec_query(struct acpi_ec *ec, u8 * data) * bit to be cleared (and thus clearing the interrupt source). */ - result = acpi_ec_transaction(ec, &t, 0); + result = acpi_ec_transaction(ec, &t); if (result) return result; @@ -570,28 +542,10 @@ static u32 acpi_ec_gpe_handler(void *data) pr_debug(PREFIX "~~~> interrupt\n"); status = acpi_ec_read_status(ec); - if (test_bit(EC_FLAGS_GPE_MODE, &ec->flags)) { - gpe_transaction(ec, status); - if (ec_transaction_done(ec) && - (status & ACPI_EC_FLAG_IBF) == 0) - wake_up(&ec->wait); - } - + advance_transaction(ec, status); + if (ec_transaction_done(ec) && (status & ACPI_EC_FLAG_IBF) == 0) + wake_up(&ec->wait); ec_check_sci(ec, status); - if (!test_bit(EC_FLAGS_GPE_MODE, &ec->flags) && - !test_bit(EC_FLAGS_NO_GPE, &ec->flags)) { - /* this is non-query, must be confirmation */ - if (!test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) { - if (printk_ratelimit()) - pr_info(PREFIX "non-query interrupt received," - " switching to interrupt mode\n"); - } else { - /* hush, STORM switches the mode every transaction */ - pr_debug(PREFIX "non-query interrupt received," - " switching to interrupt mode\n"); - } - set_bit(EC_FLAGS_GPE_MODE, &ec->flags); - } return ACPI_INTERRUPT_HANDLED; } @@ -617,7 +571,8 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address, if (bits != 8 && acpi_strict) return AE_BAD_PARAMETER; - acpi_ec_burst_enable(ec); + if (EC_FLAGS_MSI) + acpi_ec_burst_enable(ec); if (function == ACPI_READ) { result = acpi_ec_read(ec, address, &temp); @@ -638,7 +593,8 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address, } } - acpi_ec_burst_disable(ec); + if (EC_FLAGS_MSI) + acpi_ec_burst_disable(ec); switch (result) { case -EINVAL: @@ -788,6 +744,42 @@ ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval) return AE_CTRL_TERMINATE; } +static int ec_install_handlers(struct acpi_ec *ec) +{ + acpi_status status; + if (test_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags)) + return 0; + status = acpi_install_gpe_handler(NULL, ec->gpe, + ACPI_GPE_EDGE_TRIGGERED, + &acpi_ec_gpe_handler, ec); + if (ACPI_FAILURE(status)) + return -ENODEV; + acpi_set_gpe_type(NULL, ec->gpe, ACPI_GPE_TYPE_RUNTIME); + acpi_enable_gpe(NULL, ec->gpe); + status = acpi_install_address_space_handler(ec->handle, + ACPI_ADR_SPACE_EC, + &acpi_ec_space_handler, + NULL, ec); + if (ACPI_FAILURE(status)) { + if (status == AE_NOT_FOUND) { + /* + * Maybe OS fails in evaluating the _REG object. + * The AE_NOT_FOUND error will be ignored and OS + * continue to initialize EC. + */ + printk(KERN_ERR "Fail in evaluating the _REG object" + " of EC device. Broken bios is suspected.\n"); + } else { + acpi_remove_gpe_handler(NULL, ec->gpe, + &acpi_ec_gpe_handler); + return -ENODEV; + } + } + + set_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags); + return 0; +} + static void ec_remove_handlers(struct acpi_ec *ec) { if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle, @@ -802,9 +794,8 @@ static void ec_remove_handlers(struct acpi_ec *ec) static int acpi_ec_add(struct acpi_device *device) { struct acpi_ec *ec = NULL; + int ret; - if (!device) - return -EINVAL; strcpy(acpi_device_name(device), ACPI_EC_DEVICE_NAME); strcpy(acpi_device_class(device), ACPI_EC_CLASS); @@ -837,9 +828,12 @@ static int acpi_ec_add(struct acpi_device *device) acpi_ec_add_fs(device); pr_info(PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n", ec->gpe, ec->command_addr, ec->data_addr); - pr_info(PREFIX "driver started in %s mode\n", - (test_bit(EC_FLAGS_GPE_MODE, &ec->flags))?"interrupt":"poll"); - return 0; + + ret = ec_install_handlers(ec); + + /* EC is fully operational, allow queries */ + clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags); + return ret; } static int acpi_ec_remove(struct acpi_device *device, int type) @@ -851,6 +845,7 @@ static int acpi_ec_remove(struct acpi_device *device, int type) return -EINVAL; ec = acpi_driver_data(device); + ec_remove_handlers(ec); mutex_lock(&ec->lock); list_for_each_entry_safe(handler, tmp, &ec->list, node) { list_del(&handler->node); @@ -888,91 +883,60 @@ ec_parse_io_ports(struct acpi_resource *resource, void *context) return AE_OK; } -static int ec_install_handlers(struct acpi_ec *ec) +int __init acpi_boot_ec_enable(void) { - acpi_status status; - if (test_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags)) + if (!boot_ec || test_bit(EC_FLAGS_HANDLERS_INSTALLED, &boot_ec->flags)) + return 0; + if (!ec_install_handlers(boot_ec)) { + first_ec = boot_ec; return 0; - status = acpi_install_gpe_handler(NULL, ec->gpe, - ACPI_GPE_EDGE_TRIGGERED, - &acpi_ec_gpe_handler, ec); - if (ACPI_FAILURE(status)) - return -ENODEV; - acpi_set_gpe_type(NULL, ec->gpe, ACPI_GPE_TYPE_RUNTIME); - acpi_enable_gpe(NULL, ec->gpe); - status = acpi_install_address_space_handler(ec->handle, - ACPI_ADR_SPACE_EC, - &acpi_ec_space_handler, - NULL, ec); - if (ACPI_FAILURE(status)) { - if (status == AE_NOT_FOUND) { - /* - * Maybe OS fails in evaluating the _REG object. - * The AE_NOT_FOUND error will be ignored and OS - * continue to initialize EC. - */ - printk(KERN_ERR "Fail in evaluating the _REG object" - " of EC device. Broken bios is suspected.\n"); - } else { - acpi_remove_gpe_handler(NULL, ec->gpe, - &acpi_ec_gpe_handler); - return -ENODEV; - } } - - set_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags); - return 0; + return -EFAULT; } -static int acpi_ec_start(struct acpi_device *device) -{ - struct acpi_ec *ec; - int ret = 0; - - if (!device) - return -EINVAL; - - ec = acpi_driver_data(device); - - if (!ec) - return -EINVAL; - - ret = ec_install_handlers(ec); +static const struct acpi_device_id ec_device_ids[] = { + {"PNP0C09", 0}, + {"", 0}, +}; - /* EC is fully operational, allow queries */ - clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags); - return ret; +/* Some BIOS do not survive early DSDT scan, skip it */ +static int ec_skip_dsdt_scan(const struct dmi_system_id *id) +{ + EC_FLAGS_SKIP_DSDT_SCAN = 1; + return 0; } -static int acpi_ec_stop(struct acpi_device *device, int type) +/* ASUStek often supplies us with broken ECDT, validate it */ +static int ec_validate_ecdt(const struct dmi_system_id *id) { - struct acpi_ec *ec; - if (!device) - return -EINVAL; - ec = acpi_driver_data(device); - if (!ec) - return -EINVAL; - ec_remove_handlers(ec); - + EC_FLAGS_VALIDATE_ECDT = 1; return 0; } -int __init acpi_boot_ec_enable(void) +/* MSI EC needs special treatment, enable it */ +static int ec_flag_msi(const struct dmi_system_id *id) { - if (!boot_ec || test_bit(EC_FLAGS_HANDLERS_INSTALLED, &boot_ec->flags)) - return 0; - if (!ec_install_handlers(boot_ec)) { - first_ec = boot_ec; - return 0; - } - return -EFAULT; + EC_FLAGS_MSI = 1; + EC_FLAGS_VALIDATE_ECDT = 1; + return 0; } -static const struct acpi_device_id ec_device_ids[] = { - {"PNP0C09", 0}, - {"", 0}, +static struct dmi_system_id __initdata ec_dmi_table[] = { + { + ec_skip_dsdt_scan, "Compal JFL92", { + DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"), + DMI_MATCH(DMI_BOARD_NAME, "JFL92") }, NULL}, + { + ec_flag_msi, "MSI hardware", { + DMI_MATCH(DMI_BIOS_VENDOR, "Micro-Star"), + DMI_MATCH(DMI_CHASSIS_VENDOR, "MICRO-Star") }, NULL}, + { + ec_validate_ecdt, "ASUS hardware", { + DMI_MATCH(DMI_BIOS_VENDOR, "ASUS") }, NULL}, + {}, }; + int __init acpi_ec_ecdt_probe(void) { acpi_status status; @@ -985,11 +949,7 @@ int __init acpi_ec_ecdt_probe(void) /* * Generate a boot ec context */ - if (dmi_name_in_vendors("Micro-Star") || - dmi_name_in_vendors("Notebook")) { - pr_info(PREFIX "Enabling special treatment for EC from MSI.\n"); - EC_FLAGS_MSI = 1; - } + dmi_check_system(ec_dmi_table); status = acpi_get_table(ACPI_SIG_ECDT, 1, (struct acpi_table_header **)&ecdt_ptr); if (ACPI_SUCCESS(status)) { @@ -1000,7 +960,7 @@ int __init acpi_ec_ecdt_probe(void) boot_ec->handle = ACPI_ROOT_OBJECT; acpi_get_handle(ACPI_ROOT_OBJECT, ecdt_ptr->id, &boot_ec->handle); /* Don't trust ECDT, which comes from ASUSTek */ - if (!dmi_name_in_vendors("ASUS") && EC_FLAGS_MSI == 0) + if (!EC_FLAGS_VALIDATE_ECDT) goto install; saved_ec = kmalloc(sizeof(struct acpi_ec), GFP_KERNEL); if (!saved_ec) @@ -1008,6 +968,10 @@ int __init acpi_ec_ecdt_probe(void) memcpy(saved_ec, boot_ec, sizeof(struct acpi_ec)); /* fall through */ } + + if (EC_FLAGS_SKIP_DSDT_SCAN) + return -ENODEV; + /* This workaround is needed only on some broken machines, * which require early EC, but fail to provide ECDT */ printk(KERN_DEBUG PREFIX "Look up EC in DSDT\n"); @@ -1054,8 +1018,6 @@ static int acpi_ec_suspend(struct acpi_device *device, pm_message_t state) { struct acpi_ec *ec = acpi_driver_data(device); /* Stop using GPE */ - set_bit(EC_FLAGS_NO_GPE, &ec->flags); - clear_bit(EC_FLAGS_GPE_MODE, &ec->flags); acpi_disable_gpe(NULL, ec->gpe); return 0; } @@ -1064,8 +1026,6 @@ static int acpi_ec_resume(struct acpi_device *device) { struct acpi_ec *ec = acpi_driver_data(device); /* Enable use of GPE back */ - clear_bit(EC_FLAGS_NO_GPE, &ec->flags); - set_bit(EC_FLAGS_GPE_MODE, &ec->flags); acpi_enable_gpe(NULL, ec->gpe); return 0; } @@ -1077,8 +1037,6 @@ static struct acpi_driver acpi_ec_driver = { .ops = { .add = acpi_ec_add, .remove = acpi_ec_remove, - .start = acpi_ec_start, - .stop = acpi_ec_stop, .suspend = acpi_ec_suspend, .resume = acpi_ec_resume, }, diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c index aeb7e5fb4a04..c511071bfd79 100644 --- a/drivers/acpi/event.c +++ b/drivers/acpi/event.c @@ -14,6 +14,8 @@ #include <net/netlink.h> #include <net/genetlink.h> +#include "internal.h" + #define _COMPONENT ACPI_SYSTEM_COMPONENT ACPI_MODULE_NAME("event"); diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index 53698ea08371..f419849a0d3f 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -34,6 +34,8 @@ #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#define PREFIX "ACPI: " + #define ACPI_FAN_CLASS "fan" #define ACPI_FAN_FILE_STATE "state" diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index a8a5c29958c8..c6645f26224b 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -12,6 +12,8 @@ #include <linux/rwsem.h> #include <linux/acpi.h> +#include "internal.h" + #define ACPI_GLUE_DEBUG 0 #if ACPI_GLUE_DEBUG #define DBG(x...) printk(PREFIX x) @@ -93,15 +95,13 @@ do_acpi_find_child(acpi_handle handle, u32 lvl, void *context, void **rv) { acpi_status status; struct acpi_device_info *info; - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; struct acpi_find_child *find = context; - status = acpi_get_object_info(handle, &buffer); + status = acpi_get_object_info(handle, &info); if (ACPI_SUCCESS(status)) { - info = buffer.pointer; if (info->address == find->address) find->handle = handle; - kfree(buffer.pointer); + kfree(info); } return AE_OK; } @@ -121,7 +121,7 @@ EXPORT_SYMBOL(acpi_get_child); /* Link ACPI devices with physical devices */ static void acpi_glue_data_handler(acpi_handle handle, - u32 function, void *context) + void *context) { /* we provide an empty handler */ } diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 11a69b53004e..074cf8682d52 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -1,4 +1,24 @@ -/* For use by Linux/ACPI infrastructure, not drivers */ +/* + * acpi/internal.h + * For use by Linux/ACPI infrastructure, not drivers + * + * Copyright (c) 2009, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope 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., + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#define PREFIX "ACPI: " int init_acpi_device_notify(void); int acpi_scan_init(void); diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c index d440ccd27d91..202dd0c976a3 100644 --- a/drivers/acpi/numa.c +++ b/drivers/acpi/numa.c @@ -30,6 +30,8 @@ #include <linux/acpi.h> #include <acpi/acpi_bus.h> +#define PREFIX "ACPI: " + #define ACPI_NUMA 0x80000000 #define _COMPONENT ACPI_NUMA ACPI_MODULE_NAME("numa"); diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 71670719d61a..7c1c59ea9ec6 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -58,6 +58,7 @@ struct acpi_os_dpc { acpi_osd_exec_callback function; void *context; struct work_struct work; + int wait; }; #ifdef CONFIG_ACPI_CUSTOM_DSDT @@ -88,6 +89,7 @@ struct acpi_res_list { char name[5]; /* only can have a length of 4 chars, make use of this one instead of res->name, no need to kalloc then */ struct list_head resource_list; + int count; }; static LIST_HEAD(resource_list_head); @@ -189,11 +191,36 @@ acpi_status __init acpi_os_initialize(void) return AE_OK; } +static void bind_to_cpu0(struct work_struct *work) +{ + set_cpus_allowed_ptr(current, cpumask_of(0)); + kfree(work); +} + +static void bind_workqueue(struct workqueue_struct *wq) +{ + struct work_struct *work; + + work = kzalloc(sizeof(struct work_struct), GFP_KERNEL); + INIT_WORK(work, bind_to_cpu0); + queue_work(wq, work); +} + acpi_status acpi_os_initialize1(void) { + /* + * On some machines, a software-initiated SMI causes corruption unless + * the SMI runs on CPU 0. An SMI can be initiated by any AML, but + * typically it's done in GPE-related methods that are run via + * workqueues, so we can avoid the known corruption cases by binding + * the workqueues to CPU 0. + */ kacpid_wq = create_singlethread_workqueue("kacpid"); + bind_workqueue(kacpid_wq); kacpi_notify_wq = create_singlethread_workqueue("kacpi_notify"); + bind_workqueue(kacpi_notify_wq); kacpi_hotplug_wq = create_singlethread_workqueue("kacpi_hotplug"); + bind_workqueue(kacpi_hotplug_wq); BUG_ON(!kacpid_wq); BUG_ON(!kacpi_notify_wq); BUG_ON(!kacpi_hotplug_wq); @@ -672,31 +699,12 @@ void acpi_os_derive_pci_id(acpi_handle rhandle, /* upper bound */ static void acpi_os_execute_deferred(struct work_struct *work) { struct acpi_os_dpc *dpc = container_of(work, struct acpi_os_dpc, work); - if (!dpc) { - printk(KERN_ERR PREFIX "Invalid (NULL) context\n"); - return; - } - - dpc->function(dpc->context); - kfree(dpc); - - return; -} - -static void acpi_os_execute_hp_deferred(struct work_struct *work) -{ - struct acpi_os_dpc *dpc = container_of(work, struct acpi_os_dpc, work); - if (!dpc) { - printk(KERN_ERR PREFIX "Invalid (NULL) context\n"); - return; - } - acpi_os_wait_events_complete(NULL); + if (dpc->wait) + acpi_os_wait_events_complete(NULL); dpc->function(dpc->context); kfree(dpc); - - return; } /******************************************************************************* @@ -720,15 +728,11 @@ static acpi_status __acpi_os_execute(acpi_execute_type type, acpi_status status = AE_OK; struct acpi_os_dpc *dpc; struct workqueue_struct *queue; - work_func_t func; int ret; ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Scheduling function [%p(%p)] for deferred execution.\n", function, context)); - if (!function) - return AE_BAD_PARAMETER; - /* * Allocate/initialize DPC structure. Note that this memory will be * freed by the callee. The kernel handles the work_struct list in a @@ -753,8 +757,8 @@ static acpi_status __acpi_os_execute(acpi_execute_type type, */ queue = hp ? kacpi_hotplug_wq : (type == OSL_NOTIFY_HANDLER ? kacpi_notify_wq : kacpid_wq); - func = hp ? acpi_os_execute_hp_deferred : acpi_os_execute_deferred; - INIT_WORK(&dpc->work, func); + dpc->wait = hp ? 1 : 0; + INIT_WORK(&dpc->work, acpi_os_execute_deferred); ret = queue_work(queue, &dpc->work); if (!ret) { @@ -1157,7 +1161,13 @@ int acpi_check_resource_conflict(struct resource *res) res_list_elem->name, (long long) res_list_elem->start, (long long) res_list_elem->end); - printk(KERN_INFO "ACPI: Device needs an ACPI driver\n"); + if (acpi_enforce_resources == ENFORCE_RESOURCES_LAX) + printk(KERN_NOTICE "ACPI: This conflict may" + " cause random problems and system" + " instability\n"); + printk(KERN_INFO "ACPI: If an ACPI driver is available" + " for this device, you should use it instead of" + " the native driver\n"); } if (acpi_enforce_resources == ENFORCE_RESOURCES_STRICT) return -EBUSY; @@ -1333,6 +1343,89 @@ acpi_os_validate_interface (char *interface) return AE_SUPPORT; } +static inline int acpi_res_list_add(struct acpi_res_list *res) +{ + struct acpi_res_list *res_list_elem; + + list_for_each_entry(res_list_elem, &resource_list_head, + resource_list) { + + if (res->resource_type == res_list_elem->resource_type && + res->start == res_list_elem->start && + res->end == res_list_elem->end) { + + /* + * The Region(addr,len) already exist in the list, + * just increase the count + */ + + res_list_elem->count++; + return 0; + } + } + + res->count = 1; + list_add(&res->resource_list, &resource_list_head); + return 1; +} + +static inline void acpi_res_list_del(struct acpi_res_list *res) +{ + struct acpi_res_list *res_list_elem; + + list_for_each_entry(res_list_elem, &resource_list_head, + resource_list) { + + if (res->resource_type == res_list_elem->resource_type && + res->start == res_list_elem->start && + res->end == res_list_elem->end) { + + /* + * If the res count is decreased to 0, + * remove and free it + */ + + if (--res_list_elem->count == 0) { + list_del(&res_list_elem->resource_list); + kfree(res_list_elem); + } + return; + } + } +} + +acpi_status +acpi_os_invalidate_address( + u8 space_id, + acpi_physical_address address, + acpi_size length) +{ + struct acpi_res_list res; + + switch (space_id) { + case ACPI_ADR_SPACE_SYSTEM_IO: + case ACPI_ADR_SPACE_SYSTEM_MEMORY: + /* Only interference checks against SystemIO and SytemMemory + are needed */ + res.start = address; + res.end = address + length - 1; + res.resource_type = space_id; + spin_lock(&acpi_res_lock); + acpi_res_list_del(&res); + spin_unlock(&acpi_res_lock); + break; + case ACPI_ADR_SPACE_PCI_CONFIG: + case ACPI_ADR_SPACE_EC: + case ACPI_ADR_SPACE_SMBUS: + case ACPI_ADR_SPACE_CMOS: + case ACPI_ADR_SPACE_PCI_BAR_TARGET: + case ACPI_ADR_SPACE_DATA_TABLE: + case ACPI_ADR_SPACE_FIXED_HARDWARE: + break; + } + return AE_OK; +} + /****************************************************************************** * * FUNCTION: acpi_os_validate_address @@ -1357,6 +1450,7 @@ acpi_os_validate_address ( char *name) { struct acpi_res_list *res; + int added; if (acpi_enforce_resources == ENFORCE_RESOURCES_NO) return AE_OK; @@ -1374,14 +1468,17 @@ acpi_os_validate_address ( res->end = address + length - 1; res->resource_type = space_id; spin_lock(&acpi_res_lock); - list_add(&res->resource_list, &resource_list_head); + added = acpi_res_list_add(res); spin_unlock(&acpi_res_lock); - pr_debug("Added %s resource: start: 0x%llx, end: 0x%llx, " - "name: %s\n", (space_id == ACPI_ADR_SPACE_SYSTEM_IO) + pr_debug("%s %s resource: start: 0x%llx, end: 0x%llx, " + "name: %s\n", added ? "Added" : "Already exist", + (space_id == ACPI_ADR_SPACE_SYSTEM_IO) ? "SystemIO" : "System Memory", (unsigned long long)res->start, (unsigned long long)res->end, res->name); + if (!added) + kfree(res); break; case ACPI_ADR_SPACE_PCI_CONFIG: case ACPI_ADR_SPACE_EC: diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index b794eb88ab90..843699ed93f2 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -40,6 +40,8 @@ #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#define PREFIX "ACPI: " + #define _COMPONENT ACPI_PCI_COMPONENT ACPI_MODULE_NAME("pci_irq"); diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index 16e0f9d3d17c..394ae89409c2 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -43,6 +43,8 @@ #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#define PREFIX "ACPI: " + #define _COMPONENT ACPI_PCI_COMPONENT ACPI_MODULE_NAME("pci_link"); #define ACPI_PCI_LINK_CLASS "pci_irq_routing" diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 55b5b90c2a44..31122214e0ec 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -36,6 +36,8 @@ #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#define PREFIX "ACPI: " + #define _COMPONENT ACPI_PCI_COMPONENT ACPI_MODULE_NAME("pci_root"); #define ACPI_PCI_ROOT_CLASS "pci_bridge" @@ -61,20 +63,6 @@ static struct acpi_driver acpi_pci_root_driver = { }, }; -struct acpi_pci_root { - struct list_head node; - struct acpi_device *device; - struct pci_bus *bus; - u16 segment; - u8 bus_nr; - - u32 osc_support_set; /* _OSC state of support bits */ - u32 osc_control_set; /* _OSC state of control bits */ - u32 osc_control_qry; /* the latest _OSC query result */ - - u32 osc_queried:1; /* has _OSC control been queried? */ -}; - static LIST_HEAD(acpi_pci_roots); static struct acpi_pci_driver *sub_driver; @@ -317,7 +305,7 @@ static acpi_status acpi_pci_osc_support(struct acpi_pci_root *root, u32 flags) return status; } -static struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle) +struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle) { struct acpi_pci_root *root; @@ -327,6 +315,7 @@ static struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle) } return NULL; } +EXPORT_SYMBOL_GPL(acpi_pci_find_root); struct acpi_handle_node { struct list_head node; diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c index 12158e0d009b..45da2bae36c8 100644 --- a/drivers/acpi/pci_slot.c +++ b/drivers/acpi/pci_slot.c @@ -31,6 +31,7 @@ #include <linux/acpi.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#include <linux/dmi.h> static int debug; static int check_sta_before_sun; @@ -57,7 +58,7 @@ ACPI_MODULE_NAME("pci_slot"); MY_NAME , ## arg); \ } while (0) -#define SLOT_NAME_SIZE 20 /* Inspired by #define in acpiphp.h */ +#define SLOT_NAME_SIZE 21 /* Inspired by #define in acpiphp.h */ struct acpi_pci_slot { acpi_handle root_handle; /* handle of the root bridge */ @@ -149,7 +150,7 @@ register_slot(acpi_handle handle, u32 lvl, void *context, void **rv) return AE_OK; } - snprintf(name, sizeof(name), "%u", (u32)sun); + snprintf(name, sizeof(name), "%llu", sun); pci_slot = pci_create_slot(pci_bus, device, name, NULL); if (IS_ERR(pci_slot)) { err("pci_create_slot returned %ld\n", PTR_ERR(pci_slot)); diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index d74365d4a6e7..22b297916519 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -43,6 +43,9 @@ #include <linux/seq_file.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#include "sleep.h" + +#define PREFIX "ACPI: " #define _COMPONENT ACPI_POWER_COMPONENT ACPI_MODULE_NAME("power"); @@ -361,17 +364,15 @@ int acpi_device_sleep_wake(struct acpi_device *dev, */ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state) { - int i, err; + int i, err = 0; if (!dev || !dev->wakeup.flags.valid) return -EINVAL; - /* - * Do not execute the code below twice in a row without calling - * acpi_disable_wakeup_device_power() in between for the same device - */ - if (dev->wakeup.flags.prepared) - return 0; + mutex_lock(&acpi_device_lock); + + if (dev->wakeup.prepare_count++) + goto out; /* Open power resource */ for (i = 0; i < dev->wakeup.resources.count; i++) { @@ -379,7 +380,8 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state) if (ret) { printk(KERN_ERR PREFIX "Transition power state\n"); dev->wakeup.flags.valid = 0; - return -ENODEV; + err = -ENODEV; + goto err_out; } } @@ -388,9 +390,13 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state) * in arbitrary power state afterwards. */ err = acpi_device_sleep_wake(dev, 1, sleep_state, 3); - if (!err) - dev->wakeup.flags.prepared = 1; + err_out: + if (err) + dev->wakeup.prepare_count = 0; + + out: + mutex_unlock(&acpi_device_lock); return err; } @@ -402,35 +408,42 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state) */ int acpi_disable_wakeup_device_power(struct acpi_device *dev) { - int i, ret; + int i, err = 0; if (!dev || !dev->wakeup.flags.valid) return -EINVAL; + mutex_lock(&acpi_device_lock); + + if (--dev->wakeup.prepare_count > 0) + goto out; + /* - * Do not execute the code below twice in a row without calling - * acpi_enable_wakeup_device_power() in between for the same device + * Executing the code below even if prepare_count is already zero when + * the function is called may be useful, for example for initialisation. */ - if (!dev->wakeup.flags.prepared) - return 0; + if (dev->wakeup.prepare_count < 0) + dev->wakeup.prepare_count = 0; - dev->wakeup.flags.prepared = 0; - - ret = acpi_device_sleep_wake(dev, 0, 0, 0); - if (ret) - return ret; + err = acpi_device_sleep_wake(dev, 0, 0, 0); + if (err) + goto out; /* Close power resource */ for (i = 0; i < dev->wakeup.resources.count; i++) { - ret = acpi_power_off_device(dev->wakeup.resources.handles[i], dev); + int ret = acpi_power_off_device( + dev->wakeup.resources.handles[i], dev); if (ret) { printk(KERN_ERR PREFIX "Transition power state\n"); dev->wakeup.flags.valid = 0; - return -ENODEV; + err = -ENODEV; + goto out; } } - return ret; + out: + mutex_unlock(&acpi_device_lock); + return err; } /* -------------------------------------------------------------------------- diff --git a/drivers/acpi/power_meter.c b/drivers/acpi/power_meter.c new file mode 100644 index 000000000000..e6bfd77986b8 --- /dev/null +++ b/drivers/acpi/power_meter.c @@ -0,0 +1,1018 @@ +/* + * A hwmon driver for ACPI 4.0 power meters + * Copyright (C) 2009 IBM + * + * Author: Darrick J. Wong <djwong@us.ibm.com> + * + * 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 + */ + +#include <linux/module.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/jiffies.h> +#include <linux/mutex.h> +#include <linux/dmi.h> +#include <linux/kdev_t.h> +#include <linux/sched.h> +#include <linux/time.h> +#include <acpi/acpi_drivers.h> +#include <acpi/acpi_bus.h> + +#define ACPI_POWER_METER_NAME "power_meter" +ACPI_MODULE_NAME(ACPI_POWER_METER_NAME); +#define ACPI_POWER_METER_DEVICE_NAME "Power Meter" +#define ACPI_POWER_METER_CLASS "power_meter_resource" + +#define NUM_SENSORS 17 + +#define POWER_METER_CAN_MEASURE (1 << 0) +#define POWER_METER_CAN_TRIP (1 << 1) +#define POWER_METER_CAN_CAP (1 << 2) +#define POWER_METER_CAN_NOTIFY (1 << 3) +#define POWER_METER_IS_BATTERY (1 << 8) +#define UNKNOWN_HYSTERESIS 0xFFFFFFFF + +#define METER_NOTIFY_CONFIG 0x80 +#define METER_NOTIFY_TRIP 0x81 +#define METER_NOTIFY_CAP 0x82 +#define METER_NOTIFY_CAPPING 0x83 +#define METER_NOTIFY_INTERVAL 0x84 + +#define POWER_AVERAGE_NAME "power1_average" +#define POWER_CAP_NAME "power1_cap" +#define POWER_AVG_INTERVAL_NAME "power1_average_interval" +#define POWER_ALARM_NAME "power1_alarm" + +static int cap_in_hardware; +static int force_cap_on; + +static int can_cap_in_hardware(void) +{ + return force_cap_on || cap_in_hardware; +} + +static struct acpi_device_id power_meter_ids[] = { + {"ACPI000D", 0}, + {"", 0}, +}; +MODULE_DEVICE_TABLE(acpi, power_meter_ids); + +struct acpi_power_meter_capabilities { + acpi_integer flags; + acpi_integer units; + acpi_integer type; + acpi_integer accuracy; + acpi_integer sampling_time; + acpi_integer min_avg_interval; + acpi_integer max_avg_interval; + acpi_integer hysteresis; + acpi_integer configurable_cap; + acpi_integer min_cap; + acpi_integer max_cap; +}; + +struct acpi_power_meter_resource { + struct acpi_device *acpi_dev; + acpi_bus_id name; + struct mutex lock; + struct device *hwmon_dev; + struct acpi_power_meter_capabilities caps; + acpi_string model_number; + acpi_string serial_number; + acpi_string oem_info; + acpi_integer power; + acpi_integer cap; + acpi_integer avg_interval; + int sensors_valid; + unsigned long sensors_last_updated; + struct sensor_device_attribute sensors[NUM_SENSORS]; + int num_sensors; + int trip[2]; + int num_domain_devices; + struct acpi_device **domain_devices; + struct kobject *holders_dir; +}; + +struct ro_sensor_template { + char *label; + ssize_t (*show)(struct device *dev, + struct device_attribute *devattr, + char *buf); + int index; +}; + +struct rw_sensor_template { + char *label; + ssize_t (*show)(struct device *dev, + struct device_attribute *devattr, + char *buf); + ssize_t (*set)(struct device *dev, + struct device_attribute *devattr, + const char *buf, size_t count); + int index; +}; + +/* Averaging interval */ +static int update_avg_interval(struct acpi_power_meter_resource *resource) +{ + unsigned long long data; + acpi_status status; + + status = acpi_evaluate_integer(resource->acpi_dev->handle, "_GAI", + NULL, &data); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, "Evaluating _GAI")); + return -ENODEV; + } + + resource->avg_interval = data; + return 0; +} + +static ssize_t show_avg_interval(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct acpi_device *acpi_dev = to_acpi_device(dev); + struct acpi_power_meter_resource *resource = acpi_dev->driver_data; + + mutex_lock(&resource->lock); + update_avg_interval(resource); + mutex_unlock(&resource->lock); + + return sprintf(buf, "%llu\n", resource->avg_interval); +} + +static ssize_t set_avg_interval(struct device *dev, + struct device_attribute *devattr, + const char *buf, size_t count) +{ + struct acpi_device *acpi_dev = to_acpi_device(dev); + struct acpi_power_meter_resource *resource = acpi_dev->driver_data; + union acpi_object arg0 = { ACPI_TYPE_INTEGER }; + struct acpi_object_list args = { 1, &arg0 }; + int res; + unsigned long temp; + unsigned long long data; + acpi_status status; + + res = strict_strtoul(buf, 10, &temp); + if (res) + return res; + + if (temp > resource->caps.max_avg_interval || + temp < resource->caps.min_avg_interval) + return -EINVAL; + arg0.integer.value = temp; + + mutex_lock(&resource->lock); + status = acpi_evaluate_integer(resource->acpi_dev->handle, "_PAI", + &args, &data); + if (!ACPI_FAILURE(status)) + resource->avg_interval = temp; + mutex_unlock(&resource->lock); + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PAI")); + return -EINVAL; + } + + /* _PAI returns 0 on success, nonzero otherwise */ + if (data) + return -EINVAL; + + return count; +} + +/* Cap functions */ +static int update_cap(struct acpi_power_meter_resource *resource) +{ + unsigned long long data; + acpi_status status; + + status = acpi_evaluate_integer(resource->acpi_dev->handle, "_GHL", + NULL, &data); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, "Evaluating _GHL")); + return -ENODEV; + } + + resource->cap = data; + return 0; +} + +static ssize_t show_cap(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct acpi_device *acpi_dev = to_acpi_device(dev); + struct acpi_power_meter_resource *resource = acpi_dev->driver_data; + + mutex_lock(&resource->lock); + update_cap(resource); + mutex_unlock(&resource->lock); + + return sprintf(buf, "%llu\n", resource->cap * 1000); +} + +static ssize_t set_cap(struct device *dev, struct device_attribute *devattr, + const char *buf, size_t count) +{ + struct acpi_device *acpi_dev = to_acpi_device(dev); + struct acpi_power_meter_resource *resource = acpi_dev->driver_data; + union acpi_object arg0 = { ACPI_TYPE_INTEGER }; + struct acpi_object_list args = { 1, &arg0 }; + int res; + unsigned long temp; + unsigned long long data; + acpi_status status; + + res = strict_strtoul(buf, 10, &temp); + if (res) + return res; + + temp /= 1000; + if (temp > resource->caps.max_cap || temp < resource->caps.min_cap) + return -EINVAL; + arg0.integer.value = temp; + + mutex_lock(&resource->lock); + status = acpi_evaluate_integer(resource->acpi_dev->handle, "_SHL", + &args, &data); + if (!ACPI_FAILURE(status)) + resource->cap = temp; + mutex_unlock(&resource->lock); + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, "Evaluating _SHL")); + return -EINVAL; + } + + /* _SHL returns 0 on success, nonzero otherwise */ + if (data) + return -EINVAL; + + return count; +} + +/* Power meter trip points */ +static int set_acpi_trip(struct acpi_power_meter_resource *resource) +{ + union acpi_object arg_objs[] = { + {ACPI_TYPE_INTEGER}, + {ACPI_TYPE_INTEGER} + }; + struct acpi_object_list args = { 2, arg_objs }; + unsigned long long data; + acpi_status status; + + /* Both trip levels must be set */ + if (resource->trip[0] < 0 || resource->trip[1] < 0) + return 0; + + /* This driver stores min, max; ACPI wants max, min. */ + arg_objs[0].integer.value = resource->trip[1]; + arg_objs[1].integer.value = resource->trip[0]; + + status = acpi_evaluate_integer(resource->acpi_dev->handle, "_PTP", + &args, &data); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PTP")); + return -EINVAL; + } + + return data; +} + +static ssize_t set_trip(struct device *dev, struct device_attribute *devattr, + const char *buf, size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct acpi_device *acpi_dev = to_acpi_device(dev); + struct acpi_power_meter_resource *resource = acpi_dev->driver_data; + int res; + unsigned long temp; + + res = strict_strtoul(buf, 10, &temp); + if (res) + return res; + + temp /= 1000; + if (temp < 0) + return -EINVAL; + + mutex_lock(&resource->lock); + resource->trip[attr->index - 7] = temp; + res = set_acpi_trip(resource); + mutex_unlock(&resource->lock); + + if (res) + return res; + + return count; +} + +/* Power meter */ +static int update_meter(struct acpi_power_meter_resource *resource) +{ + unsigned long long data; + acpi_status status; + unsigned long local_jiffies = jiffies; + + if (time_before(local_jiffies, resource->sensors_last_updated + + msecs_to_jiffies(resource->caps.sampling_time)) && + resource->sensors_valid) + return 0; + + status = acpi_evaluate_integer(resource->acpi_dev->handle, "_PMM", + NULL, &data); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PMM")); + return -ENODEV; + } + + resource->power = data; + resource->sensors_valid = 1; + resource->sensors_last_updated = jiffies; + return 0; +} + +static ssize_t show_power(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct acpi_device *acpi_dev = to_acpi_device(dev); + struct acpi_power_meter_resource *resource = acpi_dev->driver_data; + + mutex_lock(&resource->lock); + update_meter(resource); + mutex_unlock(&resource->lock); + + return sprintf(buf, "%llu\n", resource->power * 1000); +} + +/* Miscellaneous */ +static ssize_t show_str(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct acpi_device *acpi_dev = to_acpi_device(dev); + struct acpi_power_meter_resource *resource = acpi_dev->driver_data; + acpi_string val; + + switch (attr->index) { + case 0: + val = resource->model_number; + break; + case 1: + val = resource->serial_number; + break; + case 2: + val = resource->oem_info; + break; + default: + BUG(); + } + + return sprintf(buf, "%s\n", val); +} + +static ssize_t show_val(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct acpi_device *acpi_dev = to_acpi_device(dev); + struct acpi_power_meter_resource *resource = acpi_dev->driver_data; + acpi_integer val = 0; + + switch (attr->index) { + case 0: + val = resource->caps.min_avg_interval; + break; + case 1: + val = resource->caps.max_avg_interval; + break; + case 2: + val = resource->caps.min_cap * 1000; + break; + case 3: + val = resource->caps.max_cap * 1000; + break; + case 4: + if (resource->caps.hysteresis == UNKNOWN_HYSTERESIS) + return sprintf(buf, "unknown\n"); + + val = resource->caps.hysteresis * 1000; + break; + case 5: + if (resource->caps.flags & POWER_METER_IS_BATTERY) + val = 1; + else + val = 0; + break; + case 6: + if (resource->power > resource->cap) + val = 1; + else + val = 0; + break; + case 7: + case 8: + if (resource->trip[attr->index - 7] < 0) + return sprintf(buf, "unknown\n"); + + val = resource->trip[attr->index - 7] * 1000; + break; + default: + BUG(); + } + + return sprintf(buf, "%llu\n", val); +} + +static ssize_t show_accuracy(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + struct acpi_device *acpi_dev = to_acpi_device(dev); + struct acpi_power_meter_resource *resource = acpi_dev->driver_data; + unsigned int acc = resource->caps.accuracy; + + return sprintf(buf, "%u.%u%%\n", acc / 1000, acc % 1000); +} + +static ssize_t show_name(struct device *dev, + struct device_attribute *devattr, + char *buf) +{ + return sprintf(buf, "%s\n", ACPI_POWER_METER_NAME); +} + +/* Sensor descriptions. If you add a sensor, update NUM_SENSORS above! */ +static struct ro_sensor_template meter_ro_attrs[] = { +{POWER_AVERAGE_NAME, show_power, 0}, +{"power1_accuracy", show_accuracy, 0}, +{"power1_average_interval_min", show_val, 0}, +{"power1_average_interval_max", show_val, 1}, +{"power1_is_battery", show_val, 5}, +{NULL, NULL, 0}, +}; + +static struct rw_sensor_template meter_rw_attrs[] = { +{POWER_AVG_INTERVAL_NAME, show_avg_interval, set_avg_interval, 0}, +{NULL, NULL, NULL, 0}, +}; + +static struct ro_sensor_template misc_cap_attrs[] = { +{"power1_cap_min", show_val, 2}, +{"power1_cap_max", show_val, 3}, +{"power1_cap_hyst", show_val, 4}, +{POWER_ALARM_NAME, show_val, 6}, +{NULL, NULL, 0}, +}; + +static struct ro_sensor_template ro_cap_attrs[] = { +{POWER_CAP_NAME, show_cap, 0}, +{NULL, NULL, 0}, +}; + +static struct rw_sensor_template rw_cap_attrs[] = { +{POWER_CAP_NAME, show_cap, set_cap, 0}, +{NULL, NULL, NULL, 0}, +}; + +static struct rw_sensor_template trip_attrs[] = { +{"power1_average_min", show_val, set_trip, 7}, +{"power1_average_max", show_val, set_trip, 8}, +{NULL, NULL, NULL, 0}, +}; + +static struct ro_sensor_template misc_attrs[] = { +{"name", show_name, 0}, +{"power1_model_number", show_str, 0}, +{"power1_oem_info", show_str, 2}, +{"power1_serial_number", show_str, 1}, +{NULL, NULL, 0}, +}; + +/* Read power domain data */ +static void remove_domain_devices(struct acpi_power_meter_resource *resource) +{ + int i; + + if (!resource->num_domain_devices) + return; + + for (i = 0; i < resource->num_domain_devices; i++) { + struct acpi_device *obj = resource->domain_devices[i]; + if (!obj) + continue; + + sysfs_remove_link(resource->holders_dir, + kobject_name(&obj->dev.kobj)); + put_device(&obj->dev); + } + + kfree(resource->domain_devices); + kobject_put(resource->holders_dir); +} + +static int read_domain_devices(struct acpi_power_meter_resource *resource) +{ + int res = 0; + int i; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + union acpi_object *pss; + acpi_status status; + + status = acpi_evaluate_object(resource->acpi_dev->handle, "_PMD", NULL, + &buffer); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PMD")); + return -ENODEV; + } + + pss = buffer.pointer; + if (!pss || + pss->type != ACPI_TYPE_PACKAGE) { + dev_err(&resource->acpi_dev->dev, ACPI_POWER_METER_NAME + "Invalid _PMD data\n"); + res = -EFAULT; + goto end; + } + + if (!pss->package.count) + goto end; + + resource->domain_devices = kzalloc(sizeof(struct acpi_device *) * + pss->package.count, GFP_KERNEL); + if (!resource->domain_devices) { + res = -ENOMEM; + goto end; + } + + resource->holders_dir = kobject_create_and_add("measures", + &resource->acpi_dev->dev.kobj); + if (!resource->holders_dir) { + res = -ENOMEM; + goto exit_free; + } + + resource->num_domain_devices = pss->package.count; + + for (i = 0; i < pss->package.count; i++) { + struct acpi_device *obj; + union acpi_object *element = &(pss->package.elements[i]); + + /* Refuse non-references */ + if (element->type != ACPI_TYPE_LOCAL_REFERENCE) + continue; + + /* Create a symlink to domain objects */ + resource->domain_devices[i] = NULL; + status = acpi_bus_get_device(element->reference.handle, + &resource->domain_devices[i]); + if (ACPI_FAILURE(status)) + continue; + + obj = resource->domain_devices[i]; + get_device(&obj->dev); + + res = sysfs_create_link(resource->holders_dir, &obj->dev.kobj, + kobject_name(&obj->dev.kobj)); + if (res) { + put_device(&obj->dev); + resource->domain_devices[i] = NULL; + } + } + + res = 0; + goto end; + +exit_free: + kfree(resource->domain_devices); +end: + kfree(buffer.pointer); + return res; +} + +/* Registration and deregistration */ +static int register_ro_attrs(struct acpi_power_meter_resource *resource, + struct ro_sensor_template *ro) +{ + struct device *dev = &resource->acpi_dev->dev; + struct sensor_device_attribute *sensors = + &resource->sensors[resource->num_sensors]; + int res = 0; + + while (ro->label) { + sensors->dev_attr.attr.name = ro->label; + sensors->dev_attr.attr.mode = S_IRUGO; + sensors->dev_attr.show = ro->show; + sensors->index = ro->index; + + res = device_create_file(dev, &sensors->dev_attr); + if (res) { + sensors->dev_attr.attr.name = NULL; + goto error; + } + sensors++; + resource->num_sensors++; + ro++; + } + +error: + return res; +} + +static int register_rw_attrs(struct acpi_power_meter_resource *resource, + struct rw_sensor_template *rw) +{ + struct device *dev = &resource->acpi_dev->dev; + struct sensor_device_attribute *sensors = + &resource->sensors[resource->num_sensors]; + int res = 0; + + while (rw->label) { + sensors->dev_attr.attr.name = rw->label; + sensors->dev_attr.attr.mode = S_IRUGO | S_IWUSR; + sensors->dev_attr.show = rw->show; + sensors->dev_attr.store = rw->set; + sensors->index = rw->index; + + res = device_create_file(dev, &sensors->dev_attr); + if (res) { + sensors->dev_attr.attr.name = NULL; + goto error; + } + sensors++; + resource->num_sensors++; + rw++; + } + +error: + return res; +} + +static void remove_attrs(struct acpi_power_meter_resource *resource) +{ + int i; + + for (i = 0; i < resource->num_sensors; i++) { + if (!resource->sensors[i].dev_attr.attr.name) + continue; + device_remove_file(&resource->acpi_dev->dev, + &resource->sensors[i].dev_attr); + } + + remove_domain_devices(resource); + + resource->num_sensors = 0; +} + +static int setup_attrs(struct acpi_power_meter_resource *resource) +{ + int res = 0; + + res = read_domain_devices(resource); + if (res) + return res; + + if (resource->caps.flags & POWER_METER_CAN_MEASURE) { + res = register_ro_attrs(resource, meter_ro_attrs); + if (res) + goto error; + res = register_rw_attrs(resource, meter_rw_attrs); + if (res) + goto error; + } + + if (resource->caps.flags & POWER_METER_CAN_CAP) { + if (!can_cap_in_hardware()) { + dev_err(&resource->acpi_dev->dev, + "Ignoring unsafe software power cap!\n"); + goto skip_unsafe_cap; + } + + if (resource->caps.configurable_cap) { + res = register_rw_attrs(resource, rw_cap_attrs); + if (res) + goto error; + } else { + res = register_ro_attrs(resource, ro_cap_attrs); + if (res) + goto error; + } + res = register_ro_attrs(resource, misc_cap_attrs); + if (res) + goto error; + } +skip_unsafe_cap: + + if (resource->caps.flags & POWER_METER_CAN_TRIP) { + res = register_rw_attrs(resource, trip_attrs); + if (res) + goto error; + } + + res = register_ro_attrs(resource, misc_attrs); + if (res) + goto error; + + return res; +error: + remove_domain_devices(resource); + remove_attrs(resource); + return res; +} + +static void free_capabilities(struct acpi_power_meter_resource *resource) +{ + acpi_string *str; + int i; + + str = &resource->model_number; + for (i = 0; i < 3; i++, str++) + kfree(*str); +} + +static int read_capabilities(struct acpi_power_meter_resource *resource) +{ + int res = 0; + int i; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + struct acpi_buffer state = { 0, NULL }; + struct acpi_buffer format = { sizeof("NNNNNNNNNNN"), "NNNNNNNNNNN" }; + union acpi_object *pss; + acpi_string *str; + acpi_status status; + + status = acpi_evaluate_object(resource->acpi_dev->handle, "_PMC", NULL, + &buffer); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PMC")); + return -ENODEV; + } + + pss = buffer.pointer; + if (!pss || + pss->type != ACPI_TYPE_PACKAGE || + pss->package.count != 14) { + dev_err(&resource->acpi_dev->dev, ACPI_POWER_METER_NAME + "Invalid _PMC data\n"); + res = -EFAULT; + goto end; + } + + /* Grab all the integer data at once */ + state.length = sizeof(struct acpi_power_meter_capabilities); + state.pointer = &resource->caps; + + status = acpi_extract_package(pss, &format, &state); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, "Invalid data")); + res = -EFAULT; + goto end; + } + + if (resource->caps.units) { + dev_err(&resource->acpi_dev->dev, ACPI_POWER_METER_NAME + "Unknown units %llu.\n", + resource->caps.units); + res = -EINVAL; + goto end; + } + + /* Grab the string data */ + str = &resource->model_number; + + for (i = 11; i < 14; i++) { + union acpi_object *element = &(pss->package.elements[i]); + + if (element->type != ACPI_TYPE_STRING) { + res = -EINVAL; + goto error; + } + + *str = kzalloc(sizeof(u8) * (element->string.length + 1), + GFP_KERNEL); + if (!*str) { + res = -ENOMEM; + goto error; + } + + strncpy(*str, element->string.pointer, element->string.length); + str++; + } + + dev_info(&resource->acpi_dev->dev, "Found ACPI power meter.\n"); + goto end; +error: + str = &resource->model_number; + for (i = 0; i < 3; i++, str++) + kfree(*str); +end: + kfree(buffer.pointer); + return res; +} + +/* Handle ACPI event notifications */ +static void acpi_power_meter_notify(struct acpi_device *device, u32 event) +{ + struct acpi_power_meter_resource *resource; + int res; + + if (!device || !acpi_driver_data(device)) + return; + + resource = acpi_driver_data(device); + + mutex_lock(&resource->lock); + switch (event) { + case METER_NOTIFY_CONFIG: + free_capabilities(resource); + res = read_capabilities(resource); + if (res) + break; + + remove_attrs(resource); + setup_attrs(resource); + break; + case METER_NOTIFY_TRIP: + sysfs_notify(&device->dev.kobj, NULL, POWER_AVERAGE_NAME); + update_meter(resource); + break; + case METER_NOTIFY_CAP: + sysfs_notify(&device->dev.kobj, NULL, POWER_CAP_NAME); + update_cap(resource); + break; + case METER_NOTIFY_INTERVAL: + sysfs_notify(&device->dev.kobj, NULL, POWER_AVG_INTERVAL_NAME); + update_avg_interval(resource); + break; + case METER_NOTIFY_CAPPING: + sysfs_notify(&device->dev.kobj, NULL, POWER_ALARM_NAME); + dev_info(&device->dev, "Capping in progress.\n"); + break; + default: + BUG(); + } + mutex_unlock(&resource->lock); + + acpi_bus_generate_netlink_event(ACPI_POWER_METER_CLASS, + dev_name(&device->dev), event, 0); +} + +static int acpi_power_meter_add(struct acpi_device *device) +{ + int res; + struct acpi_power_meter_resource *resource; + + if (!device) + return -EINVAL; + + resource = kzalloc(sizeof(struct acpi_power_meter_resource), + GFP_KERNEL); + if (!resource) + return -ENOMEM; + + resource->sensors_valid = 0; + resource->acpi_dev = device; + mutex_init(&resource->lock); + strcpy(acpi_device_name(device), ACPI_POWER_METER_DEVICE_NAME); + strcpy(acpi_device_class(device), ACPI_POWER_METER_CLASS); + device->driver_data = resource; + + free_capabilities(resource); + res = read_capabilities(resource); + if (res) + goto exit_free; + + resource->trip[0] = resource->trip[1] = -1; + + res = setup_attrs(resource); + if (res) + goto exit_free; + + resource->hwmon_dev = hwmon_device_register(&device->dev); + if (IS_ERR(resource->hwmon_dev)) { + res = PTR_ERR(resource->hwmon_dev); + goto exit_remove; + } + + res = 0; + goto exit; + +exit_remove: + remove_attrs(resource); +exit_free: + kfree(resource); +exit: + return res; +} + +static int acpi_power_meter_remove(struct acpi_device *device, int type) +{ + struct acpi_power_meter_resource *resource; + + if (!device || !acpi_driver_data(device)) + return -EINVAL; + + resource = acpi_driver_data(device); + hwmon_device_unregister(resource->hwmon_dev); + + free_capabilities(resource); + remove_attrs(resource); + + kfree(resource); + return 0; +} + +static int acpi_power_meter_resume(struct acpi_device *device) +{ + struct acpi_power_meter_resource *resource; + + if (!device || !acpi_driver_data(device)) + return -EINVAL; + + resource = acpi_driver_data(device); + free_capabilities(resource); + read_capabilities(resource); + + return 0; +} + +static struct acpi_driver acpi_power_meter_driver = { + .name = "power_meter", + .class = ACPI_POWER_METER_CLASS, + .ids = power_meter_ids, + .ops = { + .add = acpi_power_meter_add, + .remove = acpi_power_meter_remove, + .resume = acpi_power_meter_resume, + .notify = acpi_power_meter_notify, + }, +}; + +/* Module init/exit routines */ +static int __init enable_cap_knobs(const struct dmi_system_id *d) +{ + cap_in_hardware = 1; + return 0; +} + +static struct dmi_system_id __initdata pm_dmi_table[] = { + { + enable_cap_knobs, "IBM Active Energy Manager", + { + DMI_MATCH(DMI_SYS_VENDOR, "IBM") + }, + }, + {} +}; + +static int __init acpi_power_meter_init(void) +{ + int result; + + if (acpi_disabled) + return -ENODEV; + + dmi_check_system(pm_dmi_table); + + result = acpi_bus_register_driver(&acpi_power_meter_driver); + if (result < 0) + return -ENODEV; + + return 0; +} + +static void __exit acpi_power_meter_exit(void) +{ + acpi_bus_unregister_driver(&acpi_power_meter_driver); +} + +MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); +MODULE_DESCRIPTION("ACPI 4.0 power meter driver"); +MODULE_LICENSE("GPL"); + +module_param(force_cap_on, bool, 0644); +MODULE_PARM_DESC(force_cap_on, "Enable power cap even it is unsafe to do so."); + +module_init(acpi_power_meter_init); +module_exit(acpi_power_meter_exit); diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c index d0d550d22a6d..f8b6f555ba52 100644 --- a/drivers/acpi/proc.c +++ b/drivers/acpi/proc.c @@ -398,6 +398,8 @@ acpi_system_write_wakeup_device(struct file *file, if (len > 4) len = 4; + if (len < 0) + return -EFAULT; if (copy_from_user(strbuf, buffer, len)) return -EFAULT; diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 84e0f3c07442..c567b46dfa0f 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -59,6 +59,8 @@ #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" @@ -79,9 +81,10 @@ MODULE_DESCRIPTION("ACPI Processor Driver"); MODULE_LICENSE("GPL"); static int acpi_processor_add(struct acpi_device *device); -static int acpi_processor_start(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); @@ -101,7 +104,6 @@ static struct acpi_driver acpi_processor_driver = { .ops = { .add = acpi_processor_add, .remove = acpi_processor_remove, - .start = acpi_processor_start, .suspend = acpi_processor_suspend, .resume = acpi_processor_resume, .notify = acpi_processor_notify, @@ -110,7 +112,7 @@ static struct acpi_driver acpi_processor_driver = { #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, @@ -118,6 +120,7 @@ static const struct file_operations acpi_processor_info_fops = { .llseek = seq_lseek, .release = single_release, }; +#endif DEFINE_PER_CPU(struct acpi_processor *, processors); struct acpi_processor_errata errata __read_mostly; @@ -316,6 +319,7 @@ static int acpi_processor_set_pdc(struct acpi_processor *pr) 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) @@ -388,7 +392,6 @@ static int acpi_processor_add_fs(struct acpi_device *device) return -EIO; return 0; } - static int acpi_processor_remove_fs(struct acpi_device *device) { @@ -405,6 +408,16 @@ static int acpi_processor_remove_fs(struct acpi_device *device) 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 */ @@ -698,92 +711,6 @@ static int acpi_processor_get_info(struct acpi_device *device) static DEFINE_PER_CPU(void *, processor_device_array); -static int __cpuinit acpi_processor_start(struct acpi_device *device) -{ - int result = 0; - struct acpi_processor *pr; - struct sys_device *sysdev; - - pr = acpi_driver_data(device); - - 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"); - return -ENODEV; - } - per_cpu(processor_device_array, pr->id) = device; - - per_cpu(processors, pr->id) = pr; - - result = acpi_processor_add_fs(device); - if (result) - goto end; - - sysdev = get_cpu_sysdev(pr->id); - if (sysfs_create_link(&device->dev.kobj, &sysdev->kobj, "sysdev")) - return -EFAULT; - - /* _PDC call should be done before doing anything else (if reqd.). */ - arch_acpi_processor_init_pdc(pr); - acpi_processor_set_pdc(pr); - arch_acpi_processor_cleanup_pdc(pr); - -#ifdef CONFIG_CPU_FREQ - acpi_processor_ppc_has_changed(pr); -#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 end; - } - - dev_info(&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"); - result = sysfs_create_link(&pr->cdev->device.kobj, - &device->dev.kobj, - "device"); - if (result) - printk(KERN_ERR PREFIX "Create sysfs link\n"); - - if (pr->flags.throttling) { - printk(KERN_INFO PREFIX "%s [%s] (supports", - acpi_device_name(device), acpi_device_bid(device)); - printk(" %d throttling states", pr->throttling.state_count); - printk(")\n"); - } - - end: - - return result; -} - static void acpi_processor_notify(struct acpi_device *device, u32 event) { struct acpi_processor *pr = acpi_driver_data(device); @@ -846,10 +773,8 @@ static struct notifier_block acpi_cpu_notifier = static int acpi_processor_add(struct acpi_device *device) { struct acpi_processor *pr = NULL; - - - if (!device) - return -EINVAL; + int result = 0; + struct sys_device *sysdev; pr = kzalloc(sizeof(struct acpi_processor), GFP_KERNEL); if (!pr) @@ -865,7 +790,93 @@ static int acpi_processor_add(struct acpi_device *device) 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; + } + + /* _PDC call should be done before doing anything else (if reqd.). */ + arch_acpi_processor_init_pdc(pr); + acpi_processor_set_pdc(pr); + arch_acpi_processor_cleanup_pdc(pr); + +#ifdef CONFIG_CPU_FREQ + acpi_processor_ppc_has_changed(pr); +#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_info(&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) @@ -942,7 +953,6 @@ int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device) { acpi_handle phandle; struct acpi_device *pdev; - struct acpi_processor *pr; if (acpi_get_parent(handle, &phandle)) { @@ -957,15 +967,6 @@ int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device) return -ENODEV; } - acpi_bus_start(*device); - - pr = acpi_driver_data(*device); - if (!pr) - return -ENODEV; - - if ((pr->id >= 0) && (pr->id < nr_cpu_ids)) { - kobject_uevent(&(*device)->dev.kobj, KOBJ_ONLINE); - } return 0; } @@ -995,25 +996,6 @@ static void __ref acpi_processor_hotplug_notify(acpi_handle handle, "Unable to add the device\n"); break; } - - pr = acpi_driver_data(device); - if (!pr) { - printk(KERN_ERR PREFIX "Driver data is NULL\n"); - break; - } - - if (pr->id >= 0 && (pr->id < nr_cpu_ids)) { - kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE); - break; - } - - result = acpi_processor_start(device); - if ((!result) && ((pr->id >= 0) && (pr->id < nr_cpu_ids))) { - kobject_uevent(&device->dev.kobj, KOBJ_ONLINE); - } else { - printk(KERN_ERR PREFIX "Device [%s] failed to start\n", - acpi_device_bid(device)); - } break; case ACPI_NOTIFY_EJECT_REQUEST: ACPI_DEBUG_PRINT((ACPI_DB_INFO, @@ -1030,9 +1012,6 @@ static void __ref acpi_processor_hotplug_notify(acpi_handle handle, "Driver data is NULL, dropping EJECT\n"); return; } - - if ((pr->id < nr_cpu_ids) && (cpu_present(pr->id))) - kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE); break; default: ACPI_DEBUG_PRINT((ACPI_DB_INFO, @@ -1151,6 +1130,9 @@ static int __init acpi_processor_init(void) { int result = 0; + if (acpi_disabled) + return 0; + memset(&errata, 0, sizeof(errata)); #ifdef CONFIG_SMP @@ -1158,11 +1140,11 @@ static int __init acpi_processor_init(void) (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 /* * Check whether the system is DMI table. If yes, OSPM * should not use mwait for CPU-states. @@ -1190,13 +1172,18 @@ 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(); @@ -1207,7 +1194,9 @@ static void __exit acpi_processor_exit(void) cpuidle_unregister_driver(&acpi_idle_driver); +#ifdef CONFIG_ACPI_PROCFS remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir); +#endif return; } diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 0efa59e7e3af..bbd066e7f854 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -60,6 +60,8 @@ #include <acpi/processor.h> #include <asm/processor.h> +#define PREFIX "ACPI: " + #define ACPI_PROCESSOR_CLASS "processor" #define _COMPONENT ACPI_PROCESSOR_COMPONENT ACPI_MODULE_NAME("processor_idle"); @@ -162,8 +164,9 @@ static void lapic_timer_check_state(int state, struct acpi_processor *pr, pr->power.timer_broadcast_on_state = state; } -static void lapic_timer_propagate_broadcast(struct acpi_processor *pr) +static void lapic_timer_propagate_broadcast(void *arg) { + struct acpi_processor *pr = (struct acpi_processor *) arg; unsigned long reason; reason = pr->power.timer_broadcast_on_state < INT_MAX ? @@ -635,7 +638,8 @@ static int acpi_processor_power_verify(struct acpi_processor *pr) working++; } - lapic_timer_propagate_broadcast(pr); + smp_call_function_single(pr->id, lapic_timer_propagate_broadcast, + pr, 1); return (working); } @@ -678,6 +682,7 @@ static int acpi_processor_get_power_info(struct acpi_processor *pr) return 0; } +#ifdef CONFIG_ACPI_PROCFS static int acpi_processor_power_seq_show(struct seq_file *seq, void *offset) { struct acpi_processor *pr = seq->private; @@ -757,7 +762,7 @@ static const struct file_operations acpi_processor_power_fops = { .llseek = seq_lseek, .release = single_release, }; - +#endif /** * acpi_idle_bm_check - checks if bus master activity was detected @@ -1158,8 +1163,9 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr, { acpi_status status = 0; static int first_run; +#ifdef CONFIG_ACPI_PROCFS struct proc_dir_entry *entry = NULL; - unsigned int i; +#endif if (boot_option_idle_override) return 0; @@ -1207,15 +1213,8 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr, acpi_processor_setup_cpuidle(pr); if (cpuidle_register_device(&pr->power.dev)) return -EIO; - - printk(KERN_INFO PREFIX "CPU%d (power states:", pr->id); - for (i = 1; i <= pr->power.count; i++) - if (pr->power.states[i].valid) - printk(" C%d[C%d]", i, - pr->power.states[i].type); - printk(")\n"); } - +#ifdef CONFIG_ACPI_PROCFS /* 'power' [R] */ entry = proc_create_data(ACPI_PROCESSOR_FILE_POWER, S_IRUGO, acpi_device_dir(device), @@ -1223,6 +1222,7 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr, acpi_driver_data(device)); if (!entry) return -EIO; +#endif return 0; } @@ -1235,9 +1235,11 @@ int acpi_processor_power_exit(struct acpi_processor *pr, cpuidle_unregister_device(&pr->power.dev); pr->flags.power_setup_done = 0; +#ifdef CONFIG_ACPI_PROCFS if (acpi_device_dir(device)) remove_proc_entry(ACPI_PROCESSOR_FILE_POWER, acpi_device_dir(device)); +#endif return 0; } diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index 60e543d3234e..8ba0ed0b9ddb 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -39,6 +39,8 @@ #include <acpi/acpi_drivers.h> #include <acpi/processor.h> +#define PREFIX "ACPI: " + #define ACPI_PROCESSOR_CLASS "processor" #define ACPI_PROCESSOR_FILE_PERFORMANCE "performance" #define _COMPONENT ACPI_PROCESSOR_COMPONENT @@ -509,7 +511,7 @@ int acpi_processor_preregister_performance( struct acpi_processor *match_pr; struct acpi_psd_package *match_pdomain; - if (!alloc_cpumask_var(&covered_cpus, GFP_KERNEL)) + if (!zalloc_cpumask_var(&covered_cpus, GFP_KERNEL)) return -ENOMEM; mutex_lock(&performance_mutex); @@ -556,7 +558,6 @@ int acpi_processor_preregister_performance( * Now that we have _PSD data from all CPUs, lets setup P-state * domain info. */ - cpumask_clear(covered_cpus); for_each_possible_cpu(i) { pr = per_cpu(processors, i); if (!pr) diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c index 39838c666032..140c5c5b423c 100644 --- a/drivers/acpi/processor_thermal.c +++ b/drivers/acpi/processor_thermal.c @@ -40,6 +40,8 @@ #include <acpi/processor.h> #include <acpi/acpi_drivers.h> +#define PREFIX "ACPI: " + #define ACPI_PROCESSOR_CLASS "processor" #define _COMPONENT ACPI_PROCESSOR_COMPONENT ACPI_MODULE_NAME("processor_thermal"); @@ -66,7 +68,7 @@ static int acpi_processor_apply_limit(struct acpi_processor *pr) if (pr->limit.thermal.tx > tx) tx = pr->limit.thermal.tx; - result = acpi_processor_set_throttling(pr, tx); + result = acpi_processor_set_throttling(pr, tx, false); if (result) goto end; } @@ -421,12 +423,12 @@ processor_set_cur_state(struct thermal_cooling_device *cdev, if (state <= max_pstate) { if (pr->flags.throttling && pr->throttling.state) - result = acpi_processor_set_throttling(pr, 0); + result = acpi_processor_set_throttling(pr, 0, false); cpufreq_set_cur_state(pr->id, state); } else { cpufreq_set_cur_state(pr->id, max_pstate); result = acpi_processor_set_throttling(pr, - state - max_pstate); + state - max_pstate, false); } return result; } @@ -438,7 +440,7 @@ struct thermal_cooling_device_ops processor_cooling_ops = { }; /* /proc interface */ - +#ifdef CONFIG_ACPI_PROCFS static int acpi_processor_limit_seq_show(struct seq_file *seq, void *offset) { struct acpi_processor *pr = (struct acpi_processor *)seq->private; @@ -517,3 +519,4 @@ const struct file_operations acpi_processor_limit_fops = { .llseek = seq_lseek, .release = single_release, }; +#endif diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c index 227543789ba9..4c6c14c1e307 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c @@ -41,6 +41,8 @@ #include <acpi/acpi_drivers.h> #include <acpi/processor.h> +#define PREFIX "ACPI: " + #define ACPI_PROCESSOR_CLASS "processor" #define _COMPONENT ACPI_PROCESSOR_COMPONENT ACPI_MODULE_NAME("processor_throttling"); @@ -62,7 +64,8 @@ struct throttling_tstate { #define THROTTLING_POSTCHANGE (2) static int acpi_processor_get_throttling(struct acpi_processor *pr); -int acpi_processor_set_throttling(struct acpi_processor *pr, int state); +int acpi_processor_set_throttling(struct acpi_processor *pr, + int state, bool force); static int acpi_processor_update_tsd_coord(void) { @@ -74,7 +77,7 @@ static int acpi_processor_update_tsd_coord(void) struct acpi_tsd_package *pdomain, *match_pdomain; struct acpi_processor_throttling *pthrottling, *match_pthrottling; - if (!alloc_cpumask_var(&covered_cpus, GFP_KERNEL)) + if (!zalloc_cpumask_var(&covered_cpus, GFP_KERNEL)) return -ENOMEM; /* @@ -102,7 +105,6 @@ static int acpi_processor_update_tsd_coord(void) if (retval) goto err_ret; - cpumask_clear(covered_cpus); for_each_possible_cpu(i) { pr = per_cpu(processors, i); if (!pr) @@ -361,7 +363,7 @@ int acpi_processor_tstate_has_changed(struct acpi_processor *pr) */ target_state = throttling_limit; } - return acpi_processor_set_throttling(pr, target_state); + return acpi_processor_set_throttling(pr, target_state, false); } /* @@ -839,10 +841,10 @@ static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr) if (ret >= 0) { state = acpi_get_throttling_state(pr, value); if (state == -1) { - ACPI_WARNING((AE_INFO, - "Invalid throttling state, reset")); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Invalid throttling state, reset\n")); state = 0; - ret = acpi_processor_set_throttling(pr, state); + ret = acpi_processor_set_throttling(pr, state, true); if (ret) return ret; } @@ -915,7 +917,7 @@ static int acpi_processor_get_fadt_info(struct acpi_processor *pr) } static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr, - int state) + int state, bool force) { u32 value = 0; u32 duty_mask = 0; @@ -930,7 +932,7 @@ static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr, if (!pr->flags.throttling) return -ENODEV; - if (state == pr->throttling.state) + if (!force && (state == pr->throttling.state)) return 0; if (state < pr->throttling_platform_limit) @@ -988,7 +990,7 @@ static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr, } static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr, - int state) + int state, bool force) { int ret; acpi_integer value; @@ -1002,7 +1004,7 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr, if (!pr->flags.throttling) return -ENODEV; - if (state == pr->throttling.state) + if (!force && (state == pr->throttling.state)) return 0; if (state < pr->throttling_platform_limit) @@ -1018,7 +1020,8 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr, return 0; } -int acpi_processor_set_throttling(struct acpi_processor *pr, int state) +int acpi_processor_set_throttling(struct acpi_processor *pr, + int state, bool force) { cpumask_var_t saved_mask; int ret = 0; @@ -1070,7 +1073,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state) /* FIXME: use work_on_cpu() */ set_cpus_allowed_ptr(current, cpumask_of(pr->id)); ret = p_throttling->acpi_processor_set_throttling(pr, - t_state.target_state); + t_state.target_state, force); } else { /* * When the T-state coordination is SW_ALL or HW_ALL, @@ -1103,7 +1106,7 @@ int acpi_processor_set_throttling(struct acpi_processor *pr, int state) set_cpus_allowed_ptr(current, cpumask_of(i)); ret = match_pr->throttling. acpi_processor_set_throttling( - match_pr, t_state.target_state); + match_pr, t_state.target_state, force); } } /* @@ -1201,7 +1204,7 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr) ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Disabling throttling (was T%d)\n", pr->throttling.state)); - result = acpi_processor_set_throttling(pr, 0); + result = acpi_processor_set_throttling(pr, 0, false); if (result) goto end; } @@ -1214,7 +1217,7 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr) } /* proc interface */ - +#ifdef CONFIG_ACPI_PROCFS static int acpi_processor_throttling_seq_show(struct seq_file *seq, void *offset) { @@ -1307,7 +1310,7 @@ static ssize_t acpi_processor_write_throttling(struct file *file, if (strcmp(tmpbuf, charp) != 0) return -EINVAL; - result = acpi_processor_set_throttling(pr, state_val); + result = acpi_processor_set_throttling(pr, state_val, false); if (result) return result; @@ -1322,3 +1325,4 @@ const struct file_operations acpi_processor_throttling_fops = { .llseek = seq_lseek, .release = single_release, }; +#endif diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c index 4b214b74ebaa..52b9db8afc20 100644 --- a/drivers/acpi/sbs.c +++ b/drivers/acpi/sbs.c @@ -46,6 +46,8 @@ #include "sbshc.h" +#define PREFIX "ACPI: " + #define ACPI_SBS_CLASS "sbs" #define ACPI_AC_CLASS "ac_adapter" #define ACPI_BATTERY_CLASS "battery" diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c index 0619734895b2..d9339806df45 100644 --- a/drivers/acpi/sbshc.c +++ b/drivers/acpi/sbshc.c @@ -15,6 +15,8 @@ #include <linux/interrupt.h> #include "sbshc.h" +#define PREFIX "ACPI: " + #define ACPI_SMB_HC_CLASS "smbus_host_controller" #define ACPI_SMB_HC_DEVICE_NAME "ACPI SMBus HC" diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 781435d7e369..14a7481c97d7 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -22,6 +22,8 @@ extern struct acpi_device *acpi_root; #define ACPI_BUS_HID "LNXSYBUS" #define ACPI_BUS_DEVICE_NAME "System Bus" +#define ACPI_IS_ROOT_DEVICE(device) (!(device)->parent) + static LIST_HEAD(acpi_device_list); static LIST_HEAD(acpi_bus_id_list); DEFINE_MUTEX(acpi_device_lock); @@ -43,40 +45,19 @@ static int create_modalias(struct acpi_device *acpi_dev, char *modalias, { int len; int count; - - if (!acpi_dev->flags.hardware_id && !acpi_dev->flags.compatible_ids) - return -ENODEV; + struct acpi_hardware_id *id; len = snprintf(modalias, size, "acpi:"); size -= len; - if (acpi_dev->flags.hardware_id) { - count = snprintf(&modalias[len], size, "%s:", - acpi_dev->pnp.hardware_id); + list_for_each_entry(id, &acpi_dev->pnp.ids, list) { + count = snprintf(&modalias[len], size, "%s:", id->id); if (count < 0 || count >= size) return -EINVAL; len += count; size -= count; } - if (acpi_dev->flags.compatible_ids) { - struct acpi_compatible_id_list *cid_list; - int i; - - cid_list = acpi_dev->pnp.cid_list; - for (i = 0; i < cid_list->count; i++) { - count = snprintf(&modalias[len], size, "%s:", - cid_list->id[i].value); - if (count < 0 || count >= size) { - printk(KERN_ERR PREFIX "%s cid[%i] exceeds event buffer size", - acpi_dev->pnp.device_name, i); - break; - } - len += count; - size -= count; - } - } - modalias[len] = '\0'; return len; } @@ -183,7 +164,7 @@ static ssize_t acpi_device_hid_show(struct device *dev, struct device_attribute *attr, char *buf) { struct acpi_device *acpi_dev = to_acpi_device(dev); - return sprintf(buf, "%s\n", acpi_dev->pnp.hardware_id); + return sprintf(buf, "%s\n", acpi_device_hid(acpi_dev)); } static DEVICE_ATTR(hid, 0444, acpi_device_hid_show, NULL); @@ -219,17 +200,13 @@ static int acpi_device_setup_files(struct acpi_device *dev) goto end; } - if (dev->flags.hardware_id) { - result = device_create_file(&dev->dev, &dev_attr_hid); - if (result) - goto end; - } + result = device_create_file(&dev->dev, &dev_attr_hid); + if (result) + goto end; - if (dev->flags.hardware_id || dev->flags.compatible_ids) { - result = device_create_file(&dev->dev, &dev_attr_modalias); - if (result) - goto end; - } + result = device_create_file(&dev->dev, &dev_attr_modalias); + if (result) + goto end; /* * If device has _EJ0, 'eject' file is created that is used to trigger @@ -255,11 +232,8 @@ static void acpi_device_remove_files(struct acpi_device *dev) if (ACPI_SUCCESS(status)) device_remove_file(&dev->dev, &dev_attr_eject); - if (dev->flags.hardware_id || dev->flags.compatible_ids) - device_remove_file(&dev->dev, &dev_attr_modalias); - - if (dev->flags.hardware_id) - device_remove_file(&dev->dev, &dev_attr_hid); + device_remove_file(&dev->dev, &dev_attr_modalias); + device_remove_file(&dev->dev, &dev_attr_hid); if (dev->handle) device_remove_file(&dev->dev, &dev_attr_path); } @@ -271,6 +245,7 @@ int acpi_match_device_ids(struct acpi_device *device, const struct acpi_device_id *ids) { const struct acpi_device_id *id; + struct acpi_hardware_id *hwid; /* * If the device is not present, it is unnecessary to load device @@ -279,36 +254,30 @@ int acpi_match_device_ids(struct acpi_device *device, if (!device->status.present) return -ENODEV; - if (device->flags.hardware_id) { - for (id = ids; id->id[0]; id++) { - if (!strcmp((char*)id->id, device->pnp.hardware_id)) + for (id = ids; id->id[0]; id++) + list_for_each_entry(hwid, &device->pnp.ids, list) + if (!strcmp((char *) id->id, hwid->id)) return 0; - } - } - - if (device->flags.compatible_ids) { - struct acpi_compatible_id_list *cid_list = device->pnp.cid_list; - int i; - - for (id = ids; id->id[0]; id++) { - /* compare multiple _CID entries against driver ids */ - for (i = 0; i < cid_list->count; i++) { - if (!strcmp((char*)id->id, - cid_list->id[i].value)) - return 0; - } - } - } return -ENOENT; } EXPORT_SYMBOL(acpi_match_device_ids); +static void acpi_free_ids(struct acpi_device *device) +{ + struct acpi_hardware_id *id, *tmp; + + list_for_each_entry_safe(id, tmp, &device->pnp.ids, list) { + kfree(id->id); + kfree(id); + } +} + static void acpi_device_release(struct device *dev) { struct acpi_device *acpi_dev = to_acpi_device(dev); - kfree(acpi_dev->pnp.cid_list); + acpi_free_ids(acpi_dev); kfree(acpi_dev); } @@ -366,22 +335,21 @@ static acpi_status acpi_device_notify_fixed(void *data) { struct acpi_device *device = data; - acpi_device_notify(device->handle, ACPI_FIXED_HARDWARE_EVENT, device); + /* Fixed hardware devices have no handles */ + acpi_device_notify(NULL, ACPI_FIXED_HARDWARE_EVENT, device); return AE_OK; } static int acpi_device_install_notify_handler(struct acpi_device *device) { acpi_status status; - char *hid; - hid = acpi_device_hid(device); - if (!strcmp(hid, ACPI_BUTTON_HID_POWERF)) + if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON) status = acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, acpi_device_notify_fixed, device); - else if (!strcmp(hid, ACPI_BUTTON_HID_SLEEPF)) + else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON) status = acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, acpi_device_notify_fixed, @@ -399,10 +367,10 @@ static int acpi_device_install_notify_handler(struct acpi_device *device) static void acpi_device_remove_notify_handler(struct acpi_device *device) { - if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWERF)) + if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON) acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, acpi_device_notify_fixed); - else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEPF)) + else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON) acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, acpi_device_notify_fixed); else @@ -426,9 +394,6 @@ static int acpi_device_probe(struct device * dev) if (acpi_drv->ops.notify) { ret = acpi_device_install_notify_handler(acpi_dev); if (ret) { - if (acpi_drv->ops.stop) - acpi_drv->ops.stop(acpi_dev, - acpi_dev->removal_type); if (acpi_drv->ops.remove) acpi_drv->ops.remove(acpi_dev, acpi_dev->removal_type); @@ -452,8 +417,6 @@ static int acpi_device_remove(struct device * dev) if (acpi_drv) { if (acpi_drv->ops.notify) acpi_device_remove_notify_handler(acpi_dev); - if (acpi_drv->ops.stop) - acpi_drv->ops.stop(acpi_dev, acpi_dev->removal_type); if (acpi_drv->ops.remove) acpi_drv->ops.remove(acpi_dev, acpi_dev->removal_type); } @@ -474,12 +437,12 @@ struct bus_type acpi_bus_type = { .uevent = acpi_device_uevent, }; -static int acpi_device_register(struct acpi_device *device, - struct acpi_device *parent) +static int acpi_device_register(struct acpi_device *device) { int result; struct acpi_device_bus_id *acpi_device_bus_id, *new_bus_id; int found = 0; + /* * Linkage * ------- @@ -501,8 +464,9 @@ static int acpi_device_register(struct acpi_device *device, * If failed, create one and link it into acpi_bus_id_list */ list_for_each_entry(acpi_device_bus_id, &acpi_bus_id_list, node) { - if(!strcmp(acpi_device_bus_id->bus_id, device->flags.hardware_id? device->pnp.hardware_id : "device")) { - acpi_device_bus_id->instance_no ++; + if (!strcmp(acpi_device_bus_id->bus_id, + acpi_device_hid(device))) { + acpi_device_bus_id->instance_no++; found = 1; kfree(new_bus_id); break; @@ -510,7 +474,7 @@ static int acpi_device_register(struct acpi_device *device, } if (!found) { acpi_device_bus_id = new_bus_id; - strcpy(acpi_device_bus_id->bus_id, device->flags.hardware_id ? device->pnp.hardware_id : "device"); + strcpy(acpi_device_bus_id->bus_id, acpi_device_hid(device)); acpi_device_bus_id->instance_no = 0; list_add_tail(&acpi_device_bus_id->node, &acpi_bus_id_list); } @@ -524,7 +488,7 @@ static int acpi_device_register(struct acpi_device *device, mutex_unlock(&acpi_device_lock); if (device->parent) - device->dev.parent = &parent->dev; + device->dev.parent = &device->parent->dev; device->dev.bus = &acpi_bus_type; device->dev.release = &acpi_device_release; result = device_register(&device->dev); @@ -664,6 +628,33 @@ EXPORT_SYMBOL(acpi_bus_unregister_driver); /* -------------------------------------------------------------------------- Device Enumeration -------------------------------------------------------------------------- */ +static struct acpi_device *acpi_bus_get_parent(acpi_handle handle) +{ + acpi_status status; + int ret; + struct acpi_device *device; + + /* + * Fixed hardware devices do not appear in the namespace and do not + * have handles, but we fabricate acpi_devices for them, so we have + * to deal with them specially. + */ + if (handle == NULL) + return acpi_root; + + do { + status = acpi_get_parent(handle, &handle); + if (status == AE_NULL_ENTRY) + return NULL; + if (ACPI_FAILURE(status)) + return acpi_root; + + ret = acpi_bus_get_device(handle, &device); + if (ret == 0) + return device; + } while (1); +} + acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle *ejd) { @@ -687,7 +678,7 @@ acpi_bus_get_ejd(acpi_handle handle, acpi_handle *ejd) } EXPORT_SYMBOL_GPL(acpi_bus_get_ejd); -void acpi_bus_data_handler(acpi_handle handle, u32 function, void *context) +void acpi_bus_data_handler(acpi_handle handle, void *context) { /* TBD */ @@ -781,6 +772,7 @@ static int acpi_bus_get_wakeup_device_flags(struct acpi_device *device) kfree(buffer.pointer); device->wakeup.flags.valid = 1; + device->wakeup.prepare_count = 0; /* Call _PSW/_DSW object to disable its ability to wake the sleeping * system for the ACPI device with the _PRW object. * The _PSW object is depreciated in ACPI 3.0 and is replaced by _DSW. @@ -875,11 +867,6 @@ static int acpi_bus_get_flags(struct acpi_device *device) if (ACPI_SUCCESS(status)) device->flags.dynamic_status = 1; - /* Presence of _CID indicates 'compatible_ids' */ - status = acpi_get_handle(device->handle, "_CID", &temp); - if (ACPI_SUCCESS(status)) - device->flags.compatible_ids = 1; - /* Presence of _RMV indicates 'removable' */ status = acpi_get_handle(device->handle, "_RMV", &temp); if (ACPI_SUCCESS(status)) @@ -917,8 +904,7 @@ static int acpi_bus_get_flags(struct acpi_device *device) return 0; } -static void acpi_device_get_busid(struct acpi_device *device, - acpi_handle handle, int type) +static void acpi_device_get_busid(struct acpi_device *device) { char bus_id[5] = { '?', 0 }; struct acpi_buffer buffer = { sizeof(bus_id), bus_id }; @@ -930,10 +916,12 @@ static void acpi_device_get_busid(struct acpi_device *device, * The device's Bus ID is simply the object name. * TBD: Shouldn't this value be unique (within the ACPI namespace)? */ - switch (type) { - case ACPI_BUS_TYPE_SYSTEM: + if (ACPI_IS_ROOT_DEVICE(device)) { strcpy(device->pnp.bus_id, "ACPI"); - break; + return; + } + + switch (device->device_type) { case ACPI_BUS_TYPE_POWER_BUTTON: strcpy(device->pnp.bus_id, "PWRF"); break; @@ -941,7 +929,7 @@ static void acpi_device_get_busid(struct acpi_device *device, strcpy(device->pnp.bus_id, "SLPF"); break; default: - acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer); + acpi_get_name(device->handle, ACPI_SINGLE_NAME, &buffer); /* Clean up trailing underscores (if any) */ for (i = 3; i > 1; i--) { if (bus_id[i] == '_') @@ -999,157 +987,134 @@ static int acpi_dock_match(struct acpi_device *device) return acpi_get_handle(device->handle, "_DCK", &tmp); } -static void acpi_device_set_id(struct acpi_device *device, - struct acpi_device *parent, acpi_handle handle, - int type) +char *acpi_device_hid(struct acpi_device *device) +{ + struct acpi_hardware_id *hid; + + hid = list_first_entry(&device->pnp.ids, struct acpi_hardware_id, list); + return hid->id; +} +EXPORT_SYMBOL(acpi_device_hid); + +static void acpi_add_id(struct acpi_device *device, const char *dev_id) +{ + struct acpi_hardware_id *id; + + id = kmalloc(sizeof(*id), GFP_KERNEL); + if (!id) + return; + + id->id = kmalloc(strlen(dev_id) + 1, GFP_KERNEL); + if (!id->id) { + kfree(id); + return; + } + + strcpy(id->id, dev_id); + list_add_tail(&id->list, &device->pnp.ids); +} + +static void acpi_device_set_id(struct acpi_device *device) { - struct acpi_device_info *info; - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; - char *hid = NULL; - char *uid = NULL; - struct acpi_compatible_id_list *cid_list = NULL; - const char *cid_add = NULL; acpi_status status; + struct acpi_device_info *info; + struct acpica_device_id_list *cid_list; + int i; - switch (type) { + switch (device->device_type) { case ACPI_BUS_TYPE_DEVICE: - status = acpi_get_object_info(handle, &buffer); + if (ACPI_IS_ROOT_DEVICE(device)) { + acpi_add_id(device, ACPI_SYSTEM_HID); + break; + } else if (ACPI_IS_ROOT_DEVICE(device->parent)) { + /* \_SB_, the only root-level namespace device */ + acpi_add_id(device, ACPI_BUS_HID); + strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME); + strcpy(device->pnp.device_class, ACPI_BUS_CLASS); + break; + } + + status = acpi_get_object_info(device->handle, &info); if (ACPI_FAILURE(status)) { printk(KERN_ERR PREFIX "%s: Error reading device info\n", __func__); return; } - info = buffer.pointer; if (info->valid & ACPI_VALID_HID) - hid = info->hardware_id.value; - if (info->valid & ACPI_VALID_UID) - uid = info->unique_id.value; - if (info->valid & ACPI_VALID_CID) - cid_list = &info->compatibility_id; + acpi_add_id(device, info->hardware_id.string); + if (info->valid & ACPI_VALID_CID) { + cid_list = &info->compatible_id_list; + for (i = 0; i < cid_list->count; i++) + acpi_add_id(device, cid_list->ids[i].string); + } if (info->valid & ACPI_VALID_ADR) { device->pnp.bus_address = info->address; device->flags.bus_address = 1; } - /* If we have a video/bay/dock device, add our selfdefined - HID to the CID list. Like that the video/bay/dock drivers - will get autoloaded and the device might still match - against another driver. - */ + kfree(info); + + /* + * Some devices don't reliably have _HIDs & _CIDs, so add + * synthetic HIDs to make sure drivers can find them. + */ if (acpi_is_video_device(device)) - cid_add = ACPI_VIDEO_HID; + acpi_add_id(device, ACPI_VIDEO_HID); else if (ACPI_SUCCESS(acpi_bay_match(device))) - cid_add = ACPI_BAY_HID; + acpi_add_id(device, ACPI_BAY_HID); else if (ACPI_SUCCESS(acpi_dock_match(device))) - cid_add = ACPI_DOCK_HID; + acpi_add_id(device, ACPI_DOCK_HID); break; case ACPI_BUS_TYPE_POWER: - hid = ACPI_POWER_HID; + acpi_add_id(device, ACPI_POWER_HID); break; case ACPI_BUS_TYPE_PROCESSOR: - hid = ACPI_PROCESSOR_OBJECT_HID; - break; - case ACPI_BUS_TYPE_SYSTEM: - hid = ACPI_SYSTEM_HID; + acpi_add_id(device, ACPI_PROCESSOR_OBJECT_HID); break; case ACPI_BUS_TYPE_THERMAL: - hid = ACPI_THERMAL_HID; + acpi_add_id(device, ACPI_THERMAL_HID); break; case ACPI_BUS_TYPE_POWER_BUTTON: - hid = ACPI_BUTTON_HID_POWERF; + acpi_add_id(device, ACPI_BUTTON_HID_POWERF); break; case ACPI_BUS_TYPE_SLEEP_BUTTON: - hid = ACPI_BUTTON_HID_SLEEPF; + acpi_add_id(device, ACPI_BUTTON_HID_SLEEPF); break; } /* - * \_SB - * ---- - * Fix for the system root bus device -- the only root-level device. + * We build acpi_devices for some objects that don't have _HID or _CID, + * e.g., PCI bridges and slots. Drivers can't bind to these objects, + * but we do use them indirectly by traversing the acpi_device tree. + * This generic ID isn't useful for driver binding, but it provides + * the useful property that "every acpi_device has an ID." */ - if (((acpi_handle)parent == ACPI_ROOT_OBJECT) && (type == ACPI_BUS_TYPE_DEVICE)) { - hid = ACPI_BUS_HID; - strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME); - strcpy(device->pnp.device_class, ACPI_BUS_CLASS); - } - - if (hid) { - strcpy(device->pnp.hardware_id, hid); - device->flags.hardware_id = 1; - } - if (uid) { - strcpy(device->pnp.unique_id, uid); - device->flags.unique_id = 1; - } - if (cid_list || cid_add) { - struct acpi_compatible_id_list *list; - int size = 0; - int count = 0; - - if (cid_list) { - size = cid_list->size; - } else if (cid_add) { - size = sizeof(struct acpi_compatible_id_list); - cid_list = ACPI_ALLOCATE_ZEROED((acpi_size) size); - if (!cid_list) { - printk(KERN_ERR "Memory allocation error\n"); - kfree(buffer.pointer); - return; - } else { - cid_list->count = 0; - cid_list->size = size; - } - } - if (cid_add) - size += sizeof(struct acpi_compatible_id); - list = kmalloc(size, GFP_KERNEL); - - if (list) { - if (cid_list) { - memcpy(list, cid_list, cid_list->size); - count = cid_list->count; - } - if (cid_add) { - strncpy(list->id[count].value, cid_add, - ACPI_MAX_CID_LENGTH); - count++; - device->flags.compatible_ids = 1; - } - list->size = size; - list->count = count; - device->pnp.cid_list = list; - } else - printk(KERN_ERR PREFIX "Memory allocation error\n"); - } - - kfree(buffer.pointer); + if (list_empty(&device->pnp.ids)) + acpi_add_id(device, "device"); } -static int acpi_device_set_context(struct acpi_device *device, int type) +static int acpi_device_set_context(struct acpi_device *device) { - acpi_status status = AE_OK; - int result = 0; + acpi_status status; + /* * Context * ------- * Attach this 'struct acpi_device' to the ACPI object. This makes - * resolutions from handle->device very efficient. Note that we need - * to be careful with fixed-feature devices as they all attach to the - * root object. + * resolutions from handle->device very efficient. Fixed hardware + * devices have no handles, so we skip them. */ - if (type != ACPI_BUS_TYPE_POWER_BUTTON && - type != ACPI_BUS_TYPE_SLEEP_BUTTON) { - status = acpi_attach_data(device->handle, - acpi_bus_data_handler, device); + if (!device->handle) + return 0; - if (ACPI_FAILURE(status)) { - printk(KERN_ERR PREFIX "Error attaching device data\n"); - result = -ENODEV; - } - } - return result; + status = acpi_attach_data(device->handle, + acpi_bus_data_handler, device); + if (ACPI_SUCCESS(status)) + return 0; + + printk(KERN_ERR PREFIX "Error attaching device data\n"); + return -ENODEV; } static int acpi_bus_remove(struct acpi_device *dev, int rmdevice) @@ -1175,17 +1140,14 @@ static int acpi_bus_remove(struct acpi_device *dev, int rmdevice) return 0; } -static int -acpi_add_single_object(struct acpi_device **child, - struct acpi_device *parent, acpi_handle handle, int type, - struct acpi_bus_ops *ops) +static int acpi_add_single_object(struct acpi_device **child, + acpi_handle handle, int type, + unsigned long long sta, + struct acpi_bus_ops *ops) { - int result = 0; - struct acpi_device *device = NULL; - - - if (!child) - return -EINVAL; + int result; + struct acpi_device *device; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; device = kzalloc(sizeof(struct acpi_device), GFP_KERNEL); if (!device) { @@ -1193,85 +1155,31 @@ acpi_add_single_object(struct acpi_device **child, return -ENOMEM; } + INIT_LIST_HEAD(&device->pnp.ids); + device->device_type = type; device->handle = handle; - device->parent = parent; + device->parent = acpi_bus_get_parent(handle); device->bus_ops = *ops; /* workround for not call .start */ + STRUCT_TO_INT(device->status) = sta; - - acpi_device_get_busid(device, handle, type); + acpi_device_get_busid(device); /* * Flags * ----- - * Get prior to calling acpi_bus_get_status() so we know whether - * or not _STA is present. Note that we only look for object - * handles -- cannot evaluate objects until we know the device is - * present and properly initialized. + * Note that we only look for object handles -- cannot evaluate objects + * until we know the device is present and properly initialized. */ result = acpi_bus_get_flags(device); if (result) goto end; /* - * Status - * ------ - * See if the device is present. We always assume that non-Device - * and non-Processor objects (e.g. thermal zones, power resources, - * etc.) are present, functioning, etc. (at least when parent object - * is present). Note that _STA has a different meaning for some - * objects (e.g. power resources) so we need to be careful how we use - * it. - */ - switch (type) { - case ACPI_BUS_TYPE_PROCESSOR: - case ACPI_BUS_TYPE_DEVICE: - result = acpi_bus_get_status(device); - if (ACPI_FAILURE(result)) { - result = -ENODEV; - goto end; - } - /* - * When the device is neither present nor functional, the - * device should not be added to Linux ACPI device tree. - * When the status of the device is not present but functinal, - * it should be added to Linux ACPI tree. For example : bay - * device , dock device. - * In such conditions it is unncessary to check whether it is - * bay device or dock device. - */ - if (!device->status.present && !device->status.functional) { - result = -ENODEV; - goto end; - } - break; - default: - STRUCT_TO_INT(device->status) = - ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | - ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING; - break; - } - - /* * Initialize Device * ----------------- * TBD: Synch with Core's enumeration/initialization process. */ - - /* - * Hardware ID, Unique ID, & Bus Address - * ------------------------------------- - */ - acpi_device_set_id(device, parent, handle, type); - - /* - * The ACPI device is attached to acpi handle before getting - * the power/wakeup/peformance flags. Otherwise OS can't get - * the corresponding ACPI device by the acpi handle in the course - * of getting the power/wakeup/performance flags. - */ - result = acpi_device_set_context(device, type); - if (result) - goto end; + acpi_device_set_id(device); /* * Power Management @@ -1303,8 +1211,10 @@ acpi_add_single_object(struct acpi_device **child, goto end; } + if ((result = acpi_device_set_context(device))) + goto end; - result = acpi_device_register(device, parent); + result = acpi_device_register(device); /* * Bind _ADR-Based Devices when hot add @@ -1315,130 +1225,117 @@ acpi_add_single_object(struct acpi_device **child, } end: - if (!result) + if (!result) { + acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Adding %s [%s] parent %s\n", dev_name(&device->dev), + (char *) buffer.pointer, + device->parent ? dev_name(&device->parent->dev) : + "(null)")); + kfree(buffer.pointer); *child = device; - else { - kfree(device->pnp.cid_list); - kfree(device); - } + } else + acpi_device_release(&device->dev); return result; } -static int acpi_bus_scan(struct acpi_device *start, struct acpi_bus_ops *ops) -{ - acpi_status status = AE_OK; - struct acpi_device *parent = NULL; - struct acpi_device *child = NULL; - acpi_handle phandle = NULL; - acpi_handle chandle = NULL; - acpi_object_type type = 0; - u32 level = 1; +#define ACPI_STA_DEFAULT (ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED | \ + ACPI_STA_DEVICE_UI | ACPI_STA_DEVICE_FUNCTIONING) +static int acpi_bus_type_and_status(acpi_handle handle, int *type, + unsigned long long *sta) +{ + acpi_status status; + acpi_object_type acpi_type; - if (!start) - return -EINVAL; - - parent = start; - phandle = start->handle; + status = acpi_get_type(handle, &acpi_type); + if (ACPI_FAILURE(status)) + return -ENODEV; - /* - * Parse through the ACPI namespace, identify all 'devices', and - * create a new 'struct acpi_device' for each. - */ - while ((level > 0) && parent) { + switch (acpi_type) { + case ACPI_TYPE_ANY: /* for ACPI_ROOT_OBJECT */ + case ACPI_TYPE_DEVICE: + *type = ACPI_BUS_TYPE_DEVICE; + status = acpi_bus_get_status_handle(handle, sta); + if (ACPI_FAILURE(status)) + return -ENODEV; + break; + case ACPI_TYPE_PROCESSOR: + *type = ACPI_BUS_TYPE_PROCESSOR; + status = acpi_bus_get_status_handle(handle, sta); + if (ACPI_FAILURE(status)) + return -ENODEV; + break; + case ACPI_TYPE_THERMAL: + *type = ACPI_BUS_TYPE_THERMAL; + *sta = ACPI_STA_DEFAULT; + break; + case ACPI_TYPE_POWER: + *type = ACPI_BUS_TYPE_POWER; + *sta = ACPI_STA_DEFAULT; + break; + default: + return -ENODEV; + } - status = acpi_get_next_object(ACPI_TYPE_ANY, phandle, - chandle, &chandle); + return 0; +} - /* - * If this scope is exhausted then move our way back up. - */ - if (ACPI_FAILURE(status)) { - level--; - chandle = phandle; - acpi_get_parent(phandle, &phandle); - if (parent->parent) - parent = parent->parent; - continue; - } +static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl, + void *context, void **return_value) +{ + struct acpi_bus_ops *ops = context; + int type; + unsigned long long sta; + struct acpi_device *device; + acpi_status status; + int result; - status = acpi_get_type(chandle, &type); - if (ACPI_FAILURE(status)) - continue; + result = acpi_bus_type_and_status(handle, &type, &sta); + if (result) + return AE_OK; - /* - * If this is a scope object then parse it (depth-first). - */ - if (type == ACPI_TYPE_LOCAL_SCOPE) { - level++; - phandle = chandle; - chandle = NULL; - continue; - } + if (!(sta & ACPI_STA_DEVICE_PRESENT) && + !(sta & ACPI_STA_DEVICE_FUNCTIONING)) + return AE_CTRL_DEPTH; - /* - * We're only interested in objects that we consider 'devices'. - */ - switch (type) { - case ACPI_TYPE_DEVICE: - type = ACPI_BUS_TYPE_DEVICE; - break; - case ACPI_TYPE_PROCESSOR: - type = ACPI_BUS_TYPE_PROCESSOR; - break; - case ACPI_TYPE_THERMAL: - type = ACPI_BUS_TYPE_THERMAL; - break; - case ACPI_TYPE_POWER: - type = ACPI_BUS_TYPE_POWER; - break; - default: - continue; - } + /* + * We may already have an acpi_device from a previous enumeration. If + * so, we needn't add it again, but we may still have to start it. + */ + device = NULL; + acpi_bus_get_device(handle, &device); + if (ops->acpi_op_add && !device) + acpi_add_single_object(&device, handle, type, sta, ops); - if (ops->acpi_op_add) - status = acpi_add_single_object(&child, parent, - chandle, type, ops); - else - status = acpi_bus_get_device(chandle, &child); + if (!device) + return AE_CTRL_DEPTH; + if (ops->acpi_op_start && !(ops->acpi_op_add)) { + status = acpi_start_single_object(device); if (ACPI_FAILURE(status)) - continue; + return AE_CTRL_DEPTH; + } - if (ops->acpi_op_start && !(ops->acpi_op_add)) { - status = acpi_start_single_object(child); - if (ACPI_FAILURE(status)) - continue; - } + if (!*return_value) + *return_value = device; + return AE_OK; +} - /* - * If the device is present, enabled, and functioning then - * parse its scope (depth-first). Note that we need to - * represent absent devices to facilitate PnP notifications - * -- but only the subtree head (not all of its children, - * which will be enumerated when the parent is inserted). - * - * TBD: Need notifications and other detection mechanisms - * in place before we can fully implement this. - */ - /* - * When the device is not present but functional, it is also - * necessary to scan the children of this device. - */ - if (child->status.present || (!child->status.present && - child->status.functional)) { - status = acpi_get_next_object(ACPI_TYPE_ANY, chandle, - NULL, NULL); - if (ACPI_SUCCESS(status)) { - level++; - phandle = chandle; - chandle = NULL; - parent = child; - } - } - } +static int acpi_bus_scan(acpi_handle handle, struct acpi_bus_ops *ops, + struct acpi_device **child) +{ + acpi_status status; + void *device = NULL; + + status = acpi_bus_check_add(handle, 0, ops, &device); + if (ACPI_SUCCESS(status)) + acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, + acpi_bus_check_add, ops, &device); + if (child) + *child = device; return 0; } @@ -1446,36 +1343,25 @@ int acpi_bus_add(struct acpi_device **child, struct acpi_device *parent, acpi_handle handle, int type) { - int result; struct acpi_bus_ops ops; memset(&ops, 0, sizeof(ops)); ops.acpi_op_add = 1; - result = acpi_add_single_object(child, parent, handle, type, &ops); - if (!result) - result = acpi_bus_scan(*child, &ops); - - return result; + acpi_bus_scan(handle, &ops, child); + return 0; } EXPORT_SYMBOL(acpi_bus_add); int acpi_bus_start(struct acpi_device *device) { - int result; struct acpi_bus_ops ops; + memset(&ops, 0, sizeof(ops)); + ops.acpi_op_start = 1; - if (!device) - return -EINVAL; - - result = acpi_start_single_object(device); - if (!result) { - memset(&ops, 0, sizeof(ops)); - ops.acpi_op_start = 1; - result = acpi_bus_scan(device, &ops); - } - return result; + acpi_bus_scan(device->handle, &ops, NULL); + return 0; } EXPORT_SYMBOL(acpi_bus_start); @@ -1534,15 +1420,12 @@ int acpi_bus_trim(struct acpi_device *start, int rmdevice) } EXPORT_SYMBOL_GPL(acpi_bus_trim); -static int acpi_bus_scan_fixed(struct acpi_device *root) +static int acpi_bus_scan_fixed(void) { int result = 0; struct acpi_device *device = NULL; struct acpi_bus_ops ops; - if (!root) - return -ENODEV; - memset(&ops, 0, sizeof(ops)); ops.acpi_op_add = 1; ops.acpi_op_start = 1; @@ -1551,16 +1434,16 @@ static int acpi_bus_scan_fixed(struct acpi_device *root) * Enumerate all fixed-feature devices. */ if ((acpi_gbl_FADT.flags & ACPI_FADT_POWER_BUTTON) == 0) { - result = acpi_add_single_object(&device, acpi_root, - NULL, + result = acpi_add_single_object(&device, NULL, ACPI_BUS_TYPE_POWER_BUTTON, + ACPI_STA_DEFAULT, &ops); } if ((acpi_gbl_FADT.flags & ACPI_FADT_SLEEP_BUTTON) == 0) { - result = acpi_add_single_object(&device, acpi_root, - NULL, + result = acpi_add_single_object(&device, NULL, ACPI_BUS_TYPE_SLEEP_BUTTON, + ACPI_STA_DEFAULT, &ops); } @@ -1583,24 +1466,15 @@ int __init acpi_scan_init(void) } /* - * Create the root device in the bus's device tree - */ - result = acpi_add_single_object(&acpi_root, NULL, ACPI_ROOT_OBJECT, - ACPI_BUS_TYPE_SYSTEM, &ops); - if (result) - goto Done; - - /* * Enumerate devices in the ACPI namespace. */ - result = acpi_bus_scan_fixed(acpi_root); + result = acpi_bus_scan(ACPI_ROOT_OBJECT, &ops, &acpi_root); if (!result) - result = acpi_bus_scan(acpi_root, &ops); + result = acpi_bus_scan_fixed(); if (result) acpi_device_unregister(acpi_root, ACPI_BUS_REMOVAL_NORMAL); -Done: return result; } diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 01574a066534..a90afcc723ab 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -397,6 +397,22 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = { }, }, { + .callback = init_set_sci_en_on_resume, + .ident = "Hewlett-Packard HP G7000 Notebook PC", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP G7000 Notebook PC"), + }, + }, + { + .callback = init_set_sci_en_on_resume, + .ident = "Hewlett-Packard HP Pavilion dv3 Notebook PC", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv3 Notebook PC"), + }, + }, + { .callback = init_old_suspend_ordering, .ident = "Panasonic CF51-2L", .matches = { @@ -681,19 +697,25 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable) { acpi_handle handle; struct acpi_device *adev; + int error; - if (!device_may_wakeup(dev)) + if (!device_can_wakeup(dev)) return -EINVAL; handle = DEVICE_ACPI_HANDLE(dev); if (!handle || ACPI_FAILURE(acpi_bus_get_device(handle, &adev))) { - printk(KERN_DEBUG "ACPI handle has no context!\n"); + dev_dbg(dev, "ACPI handle has no context in %s!\n", __func__); return -ENODEV; } - return enable ? + error = enable ? acpi_enable_wakeup_device_power(adev, acpi_target_sleep_state) : acpi_disable_wakeup_device_power(adev); + if (!error) + dev_info(dev, "wake-up capability %s by ACPI\n", + enable ? "enabled" : "disabled"); + + return error; } #endif diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c index 0944daec064f..d11282975f35 100644 --- a/drivers/acpi/system.c +++ b/drivers/acpi/system.c @@ -31,6 +31,8 @@ #include <acpi/acpi_drivers.h> +#define PREFIX "ACPI: " + #define _COMPONENT ACPI_SYSTEM_COMPONENT ACPI_MODULE_NAME("system"); @@ -121,7 +123,7 @@ static void acpi_table_attr_init(struct acpi_table_attr *table_attr, table_attr->attr.size = 0; table_attr->attr.read = acpi_table_show; table_attr->attr.attr.name = table_attr->name; - table_attr->attr.attr.mode = 0444; + table_attr->attr.attr.mode = 0400; return; } diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index 646d39c031ca..f336bca7c450 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -213,6 +213,9 @@ acpi_table_parse_entries(char *id, unsigned long table_end; acpi_size tbl_size; + if (acpi_disabled) + return -ENODEV; + if (!handler) return -EINVAL; @@ -277,6 +280,9 @@ int __init acpi_table_parse(char *id, acpi_table_handler handler) struct acpi_table_header *table = NULL; acpi_size tbl_size; + if (acpi_disabled) + return -ENODEV; + if (!handler) return -EINVAL; diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 564ea1424288..65f67815902a 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -47,6 +47,8 @@ #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#define PREFIX "ACPI: " + #define ACPI_THERMAL_CLASS "thermal_zone" #define ACPI_THERMAL_DEVICE_NAME "Thermal Zone" #define ACPI_THERMAL_FILE_STATE "state" diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index f844941089bb..811fec10462b 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -30,6 +30,8 @@ #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#include "internal.h" + #define _COMPONENT ACPI_BUS_COMPONENT ACPI_MODULE_NAME("utils"); diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 8851315ce858..f6e54bf8dd96 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -40,10 +40,12 @@ #include <linux/pci.h> #include <linux/pci_ids.h> #include <asm/uaccess.h> - +#include <linux/dmi.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> +#define PREFIX "ACPI: " + #define ACPI_VIDEO_CLASS "video" #define ACPI_VIDEO_BUS_NAME "Video Bus" #define ACPI_VIDEO_DEVICE_NAME "Video Device" @@ -198,7 +200,7 @@ struct acpi_video_device { struct acpi_device *dev; struct acpi_video_device_brightness *brightness; struct backlight_device *backlight; - struct thermal_cooling_device *cdev; + struct thermal_cooling_device *cooling_dev; struct output_device *output_dev; }; @@ -283,7 +285,7 @@ static int acpi_video_device_brightness_open_fs(struct inode *inode, struct file *file); static ssize_t acpi_video_device_write_brightness(struct file *file, const char __user *buffer, size_t count, loff_t *data); -static struct file_operations acpi_video_device_brightness_fops = { +static const struct file_operations acpi_video_device_brightness_fops = { .owner = THIS_MODULE, .open = acpi_video_device_brightness_open_fs, .read = seq_read, @@ -387,20 +389,20 @@ static struct output_properties acpi_output_properties = { /* thermal cooling device callbacks */ -static int video_get_max_state(struct thermal_cooling_device *cdev, unsigned +static int video_get_max_state(struct thermal_cooling_device *cooling_dev, unsigned long *state) { - struct acpi_device *device = cdev->devdata; + struct acpi_device *device = cooling_dev->devdata; struct acpi_video_device *video = acpi_driver_data(device); *state = video->brightness->count - 3; return 0; } -static int video_get_cur_state(struct thermal_cooling_device *cdev, unsigned +static int video_get_cur_state(struct thermal_cooling_device *cooling_dev, unsigned long *state) { - struct acpi_device *device = cdev->devdata; + struct acpi_device *device = cooling_dev->devdata; struct acpi_video_device *video = acpi_driver_data(device); unsigned long long level; int offset; @@ -417,9 +419,9 @@ static int video_get_cur_state(struct thermal_cooling_device *cdev, unsigned } static int -video_set_cur_state(struct thermal_cooling_device *cdev, unsigned long state) +video_set_cur_state(struct thermal_cooling_device *cooling_dev, unsigned long state) { - struct acpi_device *device = cdev->devdata; + struct acpi_device *device = cooling_dev->devdata; struct acpi_video_device *video = acpi_driver_data(device); int level; @@ -603,6 +605,7 @@ acpi_video_device_lcd_get_level_current(struct acpi_video_device *device, unsigned long long *level) { acpi_status status = AE_OK; + int i; if (device->cap._BQC || device->cap._BCQ) { char *buf = device->cap._BQC ? "_BQC" : "_BCQ"; @@ -618,8 +621,15 @@ acpi_video_device_lcd_get_level_current(struct acpi_video_device *device, } *level += bqc_offset_aml_bug_workaround; - device->brightness->curr = *level; - return 0; + for (i = 2; i < device->brightness->count; i++) + if (device->brightness->levels[i] == *level) { + 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; } else { /* Fixme: * should we return an error or ignore this failure? @@ -870,7 +880,7 @@ acpi_video_init_brightness(struct acpi_video_device *device) br->flags._BCM_use_index = br->flags._BCL_use_index; /* _BQC uses INDEX while _BCL uses VALUE in some laptops */ - br->curr = level_old = max_level; + br->curr = level = max_level; if (!device->cap._BQC) goto set_level; @@ -892,15 +902,25 @@ acpi_video_init_brightness(struct acpi_video_device *device) br->flags._BQC_use_index = (level == max_level ? 0 : 1); - if (!br->flags._BQC_use_index) + if (!br->flags._BQC_use_index) { + /* + * Set the backlight to the initial state. + * On some buggy laptops, _BQC returns an uninitialized value + * when invoked for the first time, i.e. level_old is invalid. + * set the backlight to max_level in this case + */ + for (i = 2; i < br->count; i++) + if (level_old == br->levels[i]) + level = level_old; goto set_level; + } if (br->flags._BCL_reversed) level_old = (br->count - 1) - level_old; - level_old = br->levels[level_old]; + level = br->levels[level_old]; set_level: - result = acpi_video_device_lcd_set_level(device, level_old); + result = acpi_video_device_lcd_set_level(device, level); if (result) goto out_free_levels; @@ -934,9 +954,6 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) { acpi_handle h_dummy1; - - memset(&device->cap, 0, sizeof(device->cap)); - if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_ADR", &h_dummy1))) { device->cap._ADR = 1; } @@ -990,19 +1007,29 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) if (result) printk(KERN_ERR PREFIX "Create sysfs link\n"); - device->cdev = thermal_cooling_device_register("LCD", + device->cooling_dev = thermal_cooling_device_register("LCD", device->dev, &video_cooling_ops); - if (IS_ERR(device->cdev)) + if (IS_ERR(device->cooling_dev)) { + /* + * Set cooling_dev to NULL so we don't crash trying to + * free it. + * Also, why the hell we are returning early and + * not attempt to register video output if cooling + * device registration failed? + * -- dtor + */ + device->cooling_dev = NULL; return; + } dev_info(&device->dev->dev, "registered as cooling_device%d\n", - device->cdev->id); + device->cooling_dev->id); result = sysfs_create_link(&device->dev->dev.kobj, - &device->cdev->device.kobj, + &device->cooling_dev->device.kobj, "thermal_cooling"); if (result) printk(KERN_ERR PREFIX "Create sysfs link\n"); - result = sysfs_create_link(&device->cdev->device.kobj, + result = sysfs_create_link(&device->cooling_dev->device.kobj, &device->dev->dev.kobj, "device"); if (result) printk(KERN_ERR PREFIX "Create sysfs link\n"); @@ -1039,7 +1066,6 @@ static void acpi_video_bus_find_cap(struct acpi_video_bus *video) { acpi_handle h_dummy1; - memset(&video->cap, 0, sizeof(video->cap)); if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOS", &h_dummy1))) { video->cap._DOS = 1; } @@ -1960,6 +1986,10 @@ acpi_video_switch_brightness(struct acpi_video_device *device, int event) result = acpi_video_device_lcd_set_level(device, level_next); + if (!result) + backlight_force_update(device->backlight, + BACKLIGHT_UPDATE_HOTKEY); + out: if (result) printk(KERN_ERR PREFIX "Failed to switch the brightness\n"); @@ -2004,15 +2034,18 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device) status = acpi_remove_notify_handler(device->dev->handle, ACPI_DEVICE_NOTIFY, acpi_video_device_notify); - sysfs_remove_link(&device->backlight->dev.kobj, "device"); - backlight_device_unregister(device->backlight); - if (device->cdev) { + if (device->backlight) { + sysfs_remove_link(&device->backlight->dev.kobj, "device"); + backlight_device_unregister(device->backlight); + device->backlight = NULL; + } + if (device->cooling_dev) { sysfs_remove_link(&device->dev->dev.kobj, "thermal_cooling"); - sysfs_remove_link(&device->cdev->device.kobj, + sysfs_remove_link(&device->cooling_dev->device.kobj, "device"); - thermal_cooling_device_unregister(device->cdev); - device->cdev = NULL; + thermal_cooling_device_unregister(device->cooling_dev); + device->cooling_dev = NULL; } video_output_unregister(device->output_dev); diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 7cd2b63435ea..7032f25da9b5 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -38,6 +38,8 @@ #include <linux/dmi.h> #include <linux/pci.h> +#define PREFIX "ACPI: " + ACPI_MODULE_NAME("video"); #define _COMPONENT ACPI_VIDEO_COMPONENT diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c index 88725dcdf8bc..e0ee0c036f5a 100644 --- a/drivers/acpi/wakeup.c +++ b/drivers/acpi/wakeup.c @@ -68,7 +68,7 @@ void acpi_enable_wakeup_device(u8 sleep_state) /* If users want to disable run-wake GPE, * we only disable it for wake and leave it for runtime */ - if ((!dev->wakeup.state.enabled && !dev->wakeup.flags.prepared) + if ((!dev->wakeup.state.enabled && !dev->wakeup.prepare_count) || sleep_state > (u32) dev->wakeup.sleep_state) { if (dev->wakeup.flags.run_wake) { /* set_gpe_type will disable GPE, leave it like that */ @@ -100,7 +100,7 @@ void acpi_disable_wakeup_device(u8 sleep_state) if (!dev->wakeup.flags.valid) continue; - if ((!dev->wakeup.state.enabled && !dev->wakeup.flags.prepared) + if ((!dev->wakeup.state.enabled && !dev->wakeup.prepare_count) || sleep_state > (u32) dev->wakeup.sleep_state) { if (dev->wakeup.flags.run_wake) { acpi_set_gpe_type(dev->wakeup.gpe_device, |
