diff options
author | Stephen Rothwell <sfr@canb.auug.org.au> | 2009-07-20 11:24:22 +1000 |
---|---|---|
committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2009-07-20 11:24:22 +1000 |
commit | b526cd1de871c83dad277d642b1584cf65bd2ee7 (patch) | |
tree | 96228cdae1a705f8204a007a4ad9b8098844f3dc | |
parent | 602ea8765da70c04803237933e162a3c3ff431bc (diff) | |
parent | 6339022dbf168ec5d08de0190f80cf61feaab4df (diff) |
Merge commit 'acpi/test'
63 files changed, 2379 insertions, 1308 deletions
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index 8cfb001092ab..674a8374c6d9 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c @@ -2026,24 +2026,21 @@ acpi_sba_ioc_add(struct acpi_device *device) struct ioc *ioc; acpi_status status; u64 hpa, length; - struct acpi_buffer buffer; struct acpi_device_info *dev_info; status = hp_acpi_csr_space(device->handle, &hpa, &length); if (ACPI_FAILURE(status)) return 1; - buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - status = acpi_get_object_info(device->handle, &buffer); + status = acpi_get_object_info(device->handle, &dev_info); if (ACPI_FAILURE(status)) return 1; - dev_info = buffer.pointer; /* * For HWP0001, only SBA appears in ACPI namespace. It encloses the PCI * root bridges, and its CSR space includes the IOC function. */ - if (strncmp("HWP0001", dev_info->hardware_id.value, 7) == 0) { + if (strncmp("HWP0001", dev_info->hardware_id.string, 7) == 0) { hpa += ZX1_IOC_OFFSET; /* zx1 based systems default to kernel page size iommu pages */ if (!iovp_shift) diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index d2d1ce8170f0..4c53aeb050ab 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -32,7 +32,7 @@ EXPORT_SYMBOL(pm_power_off); static const struct desc_ptr no_idt = {}; static int reboot_mode; -enum reboot_type reboot_type = BOOT_KBD; +enum reboot_type reboot_type = BOOT_ACPI; int reboot_force; #if defined(CONFIG_X86_32) && defined(CONFIG_SMP) diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 7ec7d88c5999..41adbb3d2cbe 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. @@ -196,6 +200,17 @@ config ACPI_HOTPLUG_CPU select ACPI_CONTAINER default y +config ACPI_PROCESSOR_AGGREGATOR + tristate "Processor Aggregator" + depends on ACPI_PROCESSOR + depends on EXPERIMENTAL + help + ACPI 4.0 defines processor Aggregator, which enables OS to perform + specfic processor configuration and control that applies to all + processors in the platform. Currently only logical processor idling + is defined, which is to reduce power consumption. This driver + support the new device. + config ACPI_THERMAL tristate "Thermal Zone" depends on ACPI_PROCESSOR diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 03a985be3fe3..4ea5be388181 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -61,3 +61,5 @@ obj-$(CONFIG_ACPI_SBS) += sbs.o processor-y := processor_core.o processor_throttling.o processor-y += processor_idle.o processor_thermal.o processor-$(CONFIG_CPU_FREQ) += processor_perflib.o + +obj-$(CONFIG_ACPI_PROCESSOR_AGGREGATOR) += processor_aggregator.o diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index 7a0f4aa4fa1e..b155a43c2515 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -50,7 +50,6 @@ 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 +64,6 @@ static struct acpi_driver acpi_memory_device_driver = { .ops = { .add = acpi_memory_device_add, .remove = acpi_memory_device_remove, - .start = acpi_memory_device_start, }, }; @@ -415,28 +413,6 @@ 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 +422,6 @@ 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 +432,20 @@ 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 +453,23 @@ 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..0e7d56185f6d 100644 --- a/drivers/acpi/acpica/Makefile +++ b/drivers/acpi/acpica/Makefile @@ -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..6389f7c1de59 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]; @@ -340,7 +345,6 @@ 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..ff6689eba917 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 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..a78e02f62d5e 100644 --- a/drivers/acpi/acpica/acnamesp.h +++ b/drivers/acpi/acpica/acnamesp.h @@ -144,6 +144,8 @@ 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); 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/evevent.c b/drivers/acpi/acpica/evevent.c index cd55c774e882..5df6af7897bf 100644 --- a/drivers/acpi/acpica/evevent.c +++ b/drivers/acpi/acpica/evevent.c @@ -203,10 +203,7 @@ static acpi_status acpi_ev_fixed_event_initialize(void) /* Disable the fixed event */ if (acpi_gbl_fixed_event_info[i].enable_register_id != 0xFF) { - status = - acpi_write_bit_register(acpi_gbl_fixed_event_info - [i].enable_register_id, - ACPI_DISABLE_EVENT); + status = acpi_disable_event(i, 0); if (ACPI_FAILURE(status)) { return (status); } @@ -288,18 +285,14 @@ static u32 acpi_ev_fixed_event_dispatch(u32 event) ACPI_FUNCTION_ENTRY(); /* Clear the status bit */ - - (void)acpi_write_bit_register(acpi_gbl_fixed_event_info[event]. - status_register_id, ACPI_CLEAR_STATUS); + acpi_clear_event(event); /* * Make sure we've got a handler. If not, report an error. The event is * disabled to prevent further interrupts. */ if (NULL == acpi_gbl_fixed_event_handlers[event].handler) { - (void)acpi_write_bit_register(acpi_gbl_fixed_event_info[event]. - enable_register_id, - ACPI_DISABLE_EVENT); + acpi_disable_event(event, 0); ACPI_ERROR((AE_INFO, "No installed handler for fixed event [%08X]", 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/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..cb2eb559495a 100644 --- a/drivers/acpi/acpica/exfldio.c +++ b/drivers/acpi/acpica/exfldio.c @@ -114,12 +114,13 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc, } /* - * 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/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..283e872f87a3 100644 --- a/drivers/acpi/acpica/hwsleep.c +++ b/drivers/acpi/acpica/hwsleep.c @@ -534,6 +534,12 @@ acpi_status acpi_leave_sleep_state_prep(u8 sleep_state) ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS")); } } + + /* Clear any pending events before enabling interrupts */ + + acpi_hw_disable_all_gpes(); + acpi_clear_event(ACPI_EVENT_POWER_BUTTON); + return_ACPI_STATUS(status); } @@ -578,15 +584,7 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state) /* * GPEs must be enabled before _WAK is called as GPEs * might get fired there - * - * Restore the GPEs: - * 1) Disable/Clear all GPEs - * 2) Enable all runtime GPEs */ - status = acpi_hw_disable_all_gpes(); - if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); - } status = acpi_hw_enable_all_runtime_gpes(); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); @@ -610,15 +608,7 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state) /* Enable power button */ - (void) - acpi_write_bit_register(acpi_gbl_fixed_event_info - [ACPI_EVENT_POWER_BUTTON]. - enable_register_id, ACPI_ENABLE_EVENT); - - (void) - acpi_write_bit_register(acpi_gbl_fixed_event_info - [ACPI_EVENT_POWER_BUTTON]. - status_register_id, ACPI_CLEAR_STATUS); + acpi_enable_event(ACPI_EVENT_POWER_BUTTON, 0); arg.integer.value = ACPI_SST_WORKING; status = acpi_evaluate_object(NULL, METHOD_NAME__SST, &arg_list, NULL); 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..4ead85f29215 100644 --- a/drivers/acpi/acpica/hwxface.c +++ b/drivers/acpi/acpica/hwxface.c @@ -80,7 +80,7 @@ acpi_status acpi_reset(void) /* Write the reset value to the reset register */ - status = acpi_write(acpi_gbl_FADT.reset_value, reset_reg); + status = acpi_hw_write(acpi_gbl_FADT.reset_value, reset_reg); return_ACPI_STATUS(status); } @@ -97,67 +97,92 @@ 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; + + if (reg->bit_width == 64) { - status = acpi_os_read_memory((acpi_physical_address) address, - value, width); - break; + /* Read the top 32 bits */ - case ACPI_ADR_SPACE_SYSTEM_IO: + 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 */ - status = - acpi_hw_read_port((acpi_io_address) address, value, width); - break; + status = acpi_hw_read_port((acpi_io_address) + address, &value, width); + if (ACPI_FAILURE(status)) { + return (status); + } + *return_value = value; - default: - ACPI_ERROR((AE_INFO, - "Unsupported address space: %X", reg->space_id)); - return (AE_BAD_PARAMETER); + 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 +194,7 @@ 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 +202,7 @@ 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 +210,61 @@ 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); - } + /* Validate contents of the GAS register. Allow 64-bit transfers */ - /* Get a local copy of the address. Handles possible alignment issues */ - - 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/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..1dc1a4737aa9 100644 --- a/drivers/acpi/acpica/nspredef.c +++ b/drivers/acpi/acpica/nspredef.c @@ -72,31 +72,33 @@ 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_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, +acpi_ns_repair_object(struct acpi_predefined_data *data, + 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. * Used for warning messages. Must be in the same order as the ACPI_RTYPEs @@ -109,13 +111,21 @@ static const char *acpi_rtype_names[] = { "/Reference", }; -#define ACPI_NOT_PACKAGE ACPI_UINT32_MAX +/* 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 /******************************************************************************* * * 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 +145,13 @@ 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 +169,17 @@ 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 +190,63 @@ 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 - * - * For example, if the "Implicit Return" feature is enabled, methods will - * always return a value + * not a problem. For example, if the "Implicit Return" feature is + * enabled, methods will always return a value. */ if (!predefined->info.expected_btypes) { - goto exit; + 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 +285,58 @@ 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 +369,6 @@ 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 +383,16 @@ 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 * @@ -395,9 +402,8 @@ 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; @@ -414,11 +420,11 @@ acpi_ns_check_package(char *pathname, /* 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 +435,8 @@ 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 +461,16 @@ 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. @@ -485,7 +491,7 @@ 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 +523,7 @@ 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 +535,7 @@ 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, @@ -548,7 +552,7 @@ acpi_ns_check_package(char *pathname, /* 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); @@ -585,9 +589,9 @@ acpi_ns_check_package(char *pathname, /* Each sub-object must be of type Package */ - status = - acpi_ns_check_object_type(pathname, &sub_package, - ACPI_RTYPE_PACKAGE, i); + status = acpi_ns_check_object_type(data, &sub_package, + ACPI_RTYPE_PACKAGE, + i); if (ACPI_FAILURE(status)) { return (status); } @@ -610,7 +614,7 @@ acpi_ns_check_package(char *pathname, } status = - acpi_ns_check_package_elements(pathname, + acpi_ns_check_package_elements(data, sub_elements, package-> ret_info. @@ -643,7 +647,7 @@ acpi_ns_check_package(char *pathname, for (j = 0; j < expected_count; j++) { status = - acpi_ns_check_object_type(pathname, + acpi_ns_check_object_type(data, &sub_elements[j], package->ret_info2.object_type[j], j); if (ACPI_FAILURE(status)) { @@ -665,7 +669,7 @@ acpi_ns_check_package(char *pathname, /* Check the type of each sub-package element */ status = - acpi_ns_check_package_elements(pathname, + acpi_ns_check_package_elements(data, sub_elements, package-> ret_info. @@ -684,7 +688,7 @@ acpi_ns_check_package(char *pathname, /* First element is the (Integer) count of elements to follow */ status = - acpi_ns_check_object_type(pathname, + acpi_ns_check_object_type(data, sub_elements, ACPI_RTYPE_INTEGER, 0); @@ -704,7 +708,7 @@ acpi_ns_check_package(char *pathname, /* Check the type of each sub-package element */ status = - acpi_ns_check_package_elements(pathname, + acpi_ns_check_package_elements(data, (sub_elements + 1), package-> @@ -730,9 +734,9 @@ acpi_ns_check_package(char *pathname, /* Should not get here if predefined info table is correct */ - ACPI_WARNING((AE_INFO, - "%s: Invalid internal return type in table entry: %X", - pathname, package->ret_info.type)); + ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags, + "Invalid internal return type in table entry: %X", + package->ret_info.type)); return (AE_AML_INTERNAL); } @@ -743,9 +747,9 @@ acpi_ns_check_package(char *pathname, /* Error exit for the case with an incorrect package count */ - 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 Package is too small - found %u, expected %u", + count, expected_count)); return (AE_AML_OPERAND_VALUE); } @@ -754,7 +758,7 @@ 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 +774,7 @@ 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 +790,7 @@ 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 +799,7 @@ 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 +815,13 @@ 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 +831,7 @@ 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 +839,6 @@ 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 +851,11 @@ 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 +900,11 @@ 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 +912,7 @@ 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 +921,19 @@ 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 +943,7 @@ 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 +956,7 @@ 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) { @@ -979,11 +969,10 @@ 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); } @@ -992,8 +981,11 @@ acpi_ns_check_reference(char *pathname, * * FUNCTION: acpi_ns_repair_object * - * PARAMETERS: Pathname - Full pathname to the node (for error msgs) - * package_index - Used to determine if target is in a package + * 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 * @@ -1005,7 +997,8 @@ acpi_ns_check_reference(char *pathname, ******************************************************************************/ static acpi_status -acpi_ns_repair_object(u32 expected_btypes, +acpi_ns_repair_object(struct acpi_predefined_data *data, + u32 expected_btypes, u32 package_index, union acpi_operand_object **return_object_ptr) { @@ -1016,6 +1009,8 @@ acpi_ns_repair_object(u32 expected_btypes, 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); } @@ -1046,22 +1041,35 @@ acpi_ns_repair_object(u32 expected_btypes, ACPI_MEMCPY(new_object->string.pointer, return_object->buffer.pointer, length); - /* Install the new return object */ - - acpi_ut_remove_reference(return_object); - *return_object_ptr = new_object; - /* - * 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 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) { - acpi_ut_remove_reference(return_object); - acpi_ut_add_reference(new_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: @@ -1070,3 +1078,39 @@ acpi_ns_repair_object(u32 expected_btypes, return (AE_AML_OPERAND_TYPE); } + +/******************************************************************************* + * + * FUNCTION: acpi_ns_get_expected_types + * + * PARAMETERS: Buffer - Pointer to where the string is returned + * expected_btypes - Bitmap of expected return type(s) + * + * RETURN: Buffer is populated with type names. + * + * DESCRIPTION: Translate the expected types bitmap into a string of ascii + * names of expected types, for use in warning messages. + * + ******************************************************************************/ + +static void acpi_ns_get_expected_types(char *buffer, u32 expected_btypes) +{ + u32 this_rtype; + u32 i; + u32 j; + + j = 1; + 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(buffer, &acpi_rtype_names[i][j]); + j = 0; /* Use name separator from now on */ + } + this_rtype <<= 1; /* Next Rtype */ + } +} 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/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/uteval.c b/drivers/acpi/acpica/uteval.c index 006b16c26017..5503307b8bb7 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. * @@ -213,7 +204,7 @@ 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 +289,7 @@ 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 +331,12 @@ 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 +345,7 @@ 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 +360,7 @@ 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 +419,64 @@ 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..9e33b6261939 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" }; 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/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/bus.c b/drivers/acpi/bus.c index 2876fc70c3a9..620183f13e5e 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -141,7 +141,7 @@ int acpi_bus_get_status(struct acpi_device *device) 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/container.c b/drivers/acpi/container.c index fe0cdf83641a..2aee8c24dc56 100644 --- a/drivers/acpi/container.c +++ b/drivers/acpi/container.c @@ -200,20 +200,17 @@ 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 +237,7 @@ container_walk_namespace_cb(acpi_handle handle, } end: - kfree(buffer.pointer); + kfree(info); return AE_OK; } diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index efb959d6c8a9..39536b80bce7 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -231,18 +231,16 @@ 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; } diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 391f331674c7..d6bf0578737b 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -788,6 +788,42 @@ 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 +838,8 @@ 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); @@ -839,7 +874,12 @@ static int acpi_ec_add(struct acpi_device *device) 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 +891,7 @@ 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); @@ -888,75 +929,6 @@ ec_parse_io_ports(struct acpi_resource *resource, void *context) return AE_OK; } -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 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); - - /* EC is fully operational, allow queries */ - clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags); - return ret; -} - -static int acpi_ec_stop(struct acpi_device *device, int type) -{ - struct acpi_ec *ec; - if (!device) - return -EINVAL; - ec = acpi_driver_data(device); - if (!ec) - return -EINVAL; - ec_remove_handlers(ec); - - return 0; -} - int __init acpi_boot_ec_enable(void) { if (!boot_ec || test_bit(EC_FLAGS_HANDLERS_INSTALLED, &boot_ec->flags)) @@ -1077,8 +1049,6 @@ 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/glue.c b/drivers/acpi/glue.c index a8a5c29958c8..9a4ce33f137e 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -93,15 +93,13 @@ 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 +119,7 @@ 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/processor_aggregator.c b/drivers/acpi/processor_aggregator.c new file mode 100644 index 000000000000..d73ae57f7a6d --- /dev/null +++ b/drivers/acpi/processor_aggregator.c @@ -0,0 +1,389 @@ +/* + * 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/kernel.h> +#include <linux/cpumask.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/kthread.h> +#include <linux/freezer.h> +#include <linux/cpu.h> +#include <linux/clockchips.h> +#include <acpi/acpi_bus.h> +#include <acpi/acpi_drivers.h> + +#define ACPI_PROCESSOR_AGGREGATOR_CLASS "processor_aggregator" +#define ACPI_PROCESSOR_AGGREGATOR_DEVICE_NAME "Processor Aggregator" +#define ACPI_PROCESSOR_AGGREGATOR_NOTIFY 0x80 +static DEFINE_MUTEX(isolated_cpus_lock); + +#define MWAIT_SUBSTATE_MASK (0xf) +#define MWAIT_CSTATE_MASK (0xf) +#define MWAIT_SUBSTATE_SIZE (4) +#define CPUID_MWAIT_LEAF (5) +#define CPUID5_ECX_EXTENSIONS_SUPPORTED (0x1) +#define CPUID5_ECX_INTERRUPT_BREAK (0x2) +static unsigned long power_saving_mwait_eax; +static void power_saving_mwait_init(void) +{ + unsigned int eax, ebx, ecx, edx; + unsigned int highest_cstate = 0; + unsigned int highest_subcstate = 0; + int i; + + if (!boot_cpu_has(X86_FEATURE_MWAIT)) + return; + if (boot_cpu_data.cpuid_level < CPUID_MWAIT_LEAF) + return; + + cpuid(CPUID_MWAIT_LEAF, &eax, &ebx, &ecx, &edx); + + if (!(ecx & CPUID5_ECX_EXTENSIONS_SUPPORTED) || + !(ecx & CPUID5_ECX_INTERRUPT_BREAK)) + return; + + edx >>= MWAIT_SUBSTATE_SIZE; + for (i = 0; i < 7 && edx; i++, edx >>= MWAIT_SUBSTATE_SIZE) { + if (edx & MWAIT_SUBSTATE_MASK) { + highest_cstate = i; + highest_subcstate = edx & MWAIT_SUBSTATE_MASK; + } + } + power_saving_mwait_eax = (highest_cstate << MWAIT_SUBSTATE_SIZE) | + (highest_subcstate - 1); + + for_each_online_cpu(i) + clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ON, &i); + +#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86) + switch (boot_cpu_data.x86_vendor) { + case X86_VENDOR_AMD: + case X86_VENDOR_INTEL: + /* + * AMD Fam10h TSC will tick in all + * C/P/S0/S1 states when this bit is set. + */ + if (boot_cpu_has(X86_FEATURE_NONSTOP_TSC)) + return; + + /*FALL THROUGH*/ + default: + /* TSC could halt in idle, so notify users */ + mark_tsc_unstable("TSC halts in idle"); + } +#endif +} + +static int power_saving_thread(void *data) +{ + struct sched_param param = {.sched_priority = MAX_RT_PRIO - 1}; + int do_sleep; + + /* + * we just create a RT task to do power saving. Scheduler will migrate + * the task to any CPU. + */ + sched_setscheduler(current, SCHED_RR, ¶m); + + while (!kthread_should_stop()) { + int cpu; + u64 expire_time; + + try_to_freeze(); + + do_sleep = 0; + + current_thread_info()->status &= ~TS_POLLING; + /* + * TS_POLLING-cleared state must be visible before we test + * NEED_RESCHED: + */ + smp_mb(); + + expire_time = jiffies + HZ * 95 /100; + + while (!need_resched()) { + local_irq_disable(); + cpu = smp_processor_id(); + clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu); + stop_critical_timings(); + + __monitor((void *)¤t_thread_info()->flags, 0, 0); + smp_mb(); + if (!need_resched()) + __mwait(power_saving_mwait_eax, 1); + + start_critical_timings(); + clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu); + local_irq_enable(); + + if (jiffies > expire_time) { + do_sleep = 1; + break; + } + } + + current_thread_info()->status |= TS_POLLING; + + /* + * current sched_rt has threshold for rt task running time. + * When a rt task uses 95% CPU time, the rt thread will be + * scheduled out for 5% CPU time to not starve other tasks. But + * the mechanism only works when all CPUs have RT task running, + * as if one CPU hasn't RT task, RT task from other CPUs will + * borrow CPU time from this CPU and cause RT task use > 95% + * CPU time. To make 'avoid staration' work, takes a nap here. + */ + if (do_sleep) + schedule_timeout_killable(HZ * 5 /100); + } + return 0; +} + +static struct task_struct *ps_tsks[NR_CPUS]; +static unsigned int ps_tsk_num; +static int create_power_saving_task(void) +{ + ps_tsks[ps_tsk_num] = kthread_run(power_saving_thread, NULL, + "power_saving/%d", ps_tsk_num); + if (ps_tsks[ps_tsk_num]) { + ps_tsk_num++; + return 0; + } + return -EINVAL; +} + +static void destroy_power_saving_task(void) +{ + if (ps_tsk_num > 0) { + ps_tsk_num--; + kthread_stop(ps_tsks[ps_tsk_num]); + } +} + +static void set_power_saving_task_num(unsigned int num) +{ + if (num > ps_tsk_num) { + while (ps_tsk_num < num) { + if (create_power_saving_task()) + return; + } + } else if (num < ps_tsk_num) { + while (ps_tsk_num > num) + destroy_power_saving_task(); + } +} + +static int acpi_processor_aggregator_idle_cpus(unsigned int num_cpus) +{ + get_online_cpus(); + + num_cpus = min_t(unsigned int, num_cpus, num_online_cpus()); + set_power_saving_task_num(num_cpus); + + put_online_cpus(); + return 0; +} + +static uint32_t acpi_processor_aggregator_idle_cpus_num(void) +{ + return ps_tsk_num; +} + +static ssize_t acpi_processor_aggregator_idlecpus_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + unsigned long num; + if (strict_strtoul(buf, 0, &num)) + return -EINVAL; + mutex_lock(&isolated_cpus_lock); + acpi_processor_aggregator_idle_cpus(num); + mutex_unlock(&isolated_cpus_lock); + return count; +} + +static ssize_t acpi_processor_aggregator_idlecpus_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return scnprintf(buf, PAGE_SIZE, "%d", + acpi_processor_aggregator_idle_cpus_num()); +} +static DEVICE_ATTR(idlecpus, S_IRUGO|S_IWUSR, + acpi_processor_aggregator_idlecpus_show, + acpi_processor_aggregator_idlecpus_store); + +static int acpi_processor_aggregator_add_sysfs(struct acpi_device *device) +{ + int result; + + result = device_create_file(&device->dev, &dev_attr_idlecpus); + if (result) + return -ENODEV; + return 0; +} + +static void acpi_processor_aggregator_remove_sysfs(struct acpi_device *device) +{ + device_remove_file(&device->dev, &dev_attr_idlecpus); +} + +/* Query firmware how many CPUs should be idle */ +static int acpi_processor_aggregator_pur(acpi_handle handle, int *num_cpus) +{ + struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; + acpi_status status; + union acpi_object *package; + int rev, num, ret = -EINVAL; + + status = acpi_evaluate_object(handle, "_PUR", NULL, &buffer); + if (ACPI_FAILURE(status)) + return -EINVAL; + package = buffer.pointer; + if (package->type != ACPI_TYPE_PACKAGE || package->package.count != 2) + goto out; + rev = package->package.elements[0].integer.value; + num = package->package.elements[1].integer.value; + if (rev != 1) + goto out; + *num_cpus = num; + ret = 0; +out: + kfree(buffer.pointer); + return ret; +} + +/* Notify firmware how many CPUs are idle */ +static void acpi_processor_aggregator_ost(acpi_handle handle, int stat, + uint32_t idle_cpus) +{ + union acpi_object params[3] = { + {.type = ACPI_TYPE_INTEGER,}, + {.type = ACPI_TYPE_INTEGER,}, + {.type = ACPI_TYPE_BUFFER,}, + }; + struct acpi_object_list arg_list = {3, params}; + + params[0].integer.value = ACPI_PROCESSOR_AGGREGATOR_NOTIFY; + params[1].integer.value = stat; + params[2].buffer.length = 4; + params[2].buffer.pointer = (void *)&idle_cpus; + acpi_evaluate_object(handle, "_OST", &arg_list, NULL); +} + +static void acpi_processor_aggregator_handle_notify(acpi_handle handle) +{ + int num_cpus, ret; + uint32_t idle_cpus; + + mutex_lock(&isolated_cpus_lock); + if (acpi_processor_aggregator_pur(handle, &num_cpus)) { + mutex_unlock(&isolated_cpus_lock); + return; + } + ret = acpi_processor_aggregator_idle_cpus(num_cpus); + idle_cpus = acpi_processor_aggregator_idle_cpus_num(); + if (!ret) + acpi_processor_aggregator_ost(handle, 0, idle_cpus); + else + acpi_processor_aggregator_ost(handle, 1, 0); + mutex_unlock(&isolated_cpus_lock); +} + +static void acpi_processor_aggregator_notify(acpi_handle handle, u32 event, + void *data) +{ + struct acpi_device *device = data; + + switch (event) { + case ACPI_PROCESSOR_AGGREGATOR_NOTIFY: + acpi_processor_aggregator_handle_notify(handle); + acpi_bus_generate_proc_event(device, event, 0); + acpi_bus_generate_netlink_event(device->pnp.device_class, + dev_name(&device->dev), event, 0); + break; + default: + printk(KERN_WARNING"Unsupported event [0x%x]\n", event); + break; + } +} + +static int acpi_processor_aggregator_add(struct acpi_device *device) +{ + acpi_status status; + + strcpy(acpi_device_name(device), ACPI_PROCESSOR_AGGREGATOR_DEVICE_NAME); + strcpy(acpi_device_class(device), ACPI_PROCESSOR_AGGREGATOR_CLASS); + + if (acpi_processor_aggregator_add_sysfs(device)) + return -ENODEV; + + status = acpi_install_notify_handler(device->handle, + ACPI_DEVICE_NOTIFY, acpi_processor_aggregator_notify, device); + if (ACPI_FAILURE(status)) { + acpi_processor_aggregator_remove_sysfs(device); + return -ENODEV; + } + + return 0; +} + +static int acpi_processor_aggregator_remove(struct acpi_device *device, int type) +{ + mutex_lock(&isolated_cpus_lock); + acpi_processor_aggregator_idle_cpus(0); + mutex_unlock(&isolated_cpus_lock); + + acpi_remove_notify_handler(device->handle, + ACPI_DEVICE_NOTIFY, acpi_processor_aggregator_notify); + acpi_processor_aggregator_remove_sysfs(device); + return 0; +} + +static const struct acpi_device_id processor_aggregator_device_ids[] = { + {"ACPI000C", 0}, + {"", 0}, +}; +MODULE_DEVICE_TABLE(acpi, processor_aggregator_device_ids); + +static struct acpi_driver acpi_processor_aggregator_driver = { + .name = "processor_aggregator", + .class = ACPI_PROCESSOR_AGGREGATOR_CLASS, + .ids = processor_aggregator_device_ids, + .ops = { + .add = acpi_processor_aggregator_add, + .remove = acpi_processor_aggregator_remove, + }, +}; + +static int __init acpi_processor_aggregator_init(void) +{ + power_saving_mwait_init(); + if (power_saving_mwait_eax == 0) + return -EINVAL; + + return acpi_bus_register_driver(&acpi_processor_aggregator_driver); +} + +static void __exit acpi_processor_aggregator_exit(void) +{ + acpi_bus_unregister_driver(&acpi_processor_aggregator_driver); +} + +module_init(acpi_processor_aggregator_init); +module_exit(acpi_processor_aggregator_exit); +MODULE_AUTHOR("Shaohua Li<shaohua.li@intel.com>"); +MODULE_DESCRIPTION("ACPI Processor Aggregator Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 84e0f3c07442..3bcef820540d 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -79,9 +79,10 @@ 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 +102,6 @@ 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 +110,7 @@ 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 +118,7 @@ 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 +317,7 @@ 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 +390,6 @@ 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 +406,16 @@ 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 +709,6 @@ 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 +771,8 @@ 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 +788,100 @@ 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; + } + + 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"); + } + 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 +958,6 @@ 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 +972,6 @@ 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 +1001,6 @@ 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 +1017,6 @@ 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, @@ -1158,11 +1142,11 @@ 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. @@ -1190,7 +1174,9 @@ 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; } @@ -1207,7 +1193,9 @@ 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..035d05881984 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -678,6 +678,7 @@ 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 +758,7 @@ 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 @@ -1158,7 +1159,9 @@ 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; +#endif unsigned int i; if (boot_option_idle_override) @@ -1215,7 +1218,7 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr, 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 +1226,7 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr, acpi_driver_data(device)); if (!entry) return -EIO; +#endif return 0; } @@ -1235,9 +1239,11 @@ 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_thermal.c b/drivers/acpi/processor_thermal.c index 39838c666032..07e26140e977 100644 --- a/drivers/acpi/processor_thermal.c +++ b/drivers/acpi/processor_thermal.c @@ -438,7 +438,7 @@ 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 +517,4 @@ 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..16560014f7bd 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c @@ -1214,7 +1214,7 @@ 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) { @@ -1322,3 +1322,4 @@ const struct file_operations acpi_processor_throttling_fops = { .llseek = seq_lseek, .release = single_release, }; +#endif diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 781435d7e369..3ceebfe55ea5 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -60,13 +60,13 @@ static int create_modalias(struct acpi_device *acpi_dev, char *modalias, } if (acpi_dev->flags.compatible_ids) { - struct acpi_compatible_id_list *cid_list; + struct acpica_device_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); + cid_list->ids[i].string); if (count < 0 || count >= size) { printk(KERN_ERR PREFIX "%s cid[%i] exceeds event buffer size", acpi_dev->pnp.device_name, i); @@ -287,14 +287,14 @@ int acpi_match_device_ids(struct acpi_device *device, } if (device->flags.compatible_ids) { - struct acpi_compatible_id_list *cid_list = device->pnp.cid_list; + struct acpica_device_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)) + cid_list->ids[i].string)) return 0; } } @@ -426,9 +426,6 @@ 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 +449,6 @@ 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); } @@ -687,7 +682,7 @@ 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 */ @@ -999,33 +994,89 @@ static int acpi_dock_match(struct acpi_device *device) return acpi_get_handle(device->handle, "_DCK", &tmp); } +static struct acpica_device_id_list* +acpi_add_cid( + struct acpi_device_info *info, + struct acpica_device_id *new_cid) +{ + struct acpica_device_id_list *cid; + char *next_id_string; + acpi_size cid_length; + acpi_size new_cid_length; + u32 i; + + + /* Allocate new CID list with room for the new CID */ + + if (!new_cid) + new_cid_length = info->compatible_id_list.list_size; + else if (info->compatible_id_list.list_size) + new_cid_length = info->compatible_id_list.list_size + + new_cid->length + sizeof(struct acpica_device_id); + else + new_cid_length = sizeof(struct acpica_device_id_list) + new_cid->length; + + cid = ACPI_ALLOCATE_ZEROED(new_cid_length); + if (!cid) { + return NULL; + } + + cid->list_size = new_cid_length; + cid->count = info->compatible_id_list.count; + if (new_cid) + cid->count++; + next_id_string = (char *) cid->ids + (cid->count * sizeof(struct acpica_device_id)); + + /* Copy all existing CIDs */ + + for (i = 0; i < info->compatible_id_list.count; i++) { + cid_length = info->compatible_id_list.ids[i].length; + cid->ids[i].string = next_id_string; + cid->ids[i].length = cid_length; + + ACPI_MEMCPY(next_id_string, info->compatible_id_list.ids[i].string, + cid_length); + + next_id_string += cid_length; + } + + /* Append the new CID */ + + if (new_cid) { + cid->ids[i].string = next_id_string; + cid->ids[i].length = new_cid->length; + + ACPI_MEMCPY(next_id_string, new_cid->string, new_cid->length); + } + + return cid; +} + static void acpi_device_set_id(struct acpi_device *device, struct acpi_device *parent, acpi_handle handle, int type) { - struct acpi_device_info *info; - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + struct acpi_device_info *info = NULL; char *hid = NULL; char *uid = NULL; - struct acpi_compatible_id_list *cid_list = NULL; - const char *cid_add = NULL; + struct acpica_device_id_list *cid_list = NULL; + char *cid_add = NULL; acpi_status status; switch (type) { case ACPI_BUS_TYPE_DEVICE: - status = acpi_get_object_info(handle, &buffer); + status = acpi_get_object_info(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; + hid = info->hardware_id.string; if (info->valid & ACPI_VALID_UID) - uid = info->unique_id.value; + uid = info->unique_id.string; if (info->valid & ACPI_VALID_CID) - cid_list = &info->compatibility_id; + cid_list = &info->compatible_id_list; if (info->valid & ACPI_VALID_ADR) { device->pnp.bus_address = info->address; device->flags.bus_address = 1; @@ -1076,55 +1127,44 @@ static void acpi_device_set_id(struct acpi_device *device, } if (hid) { - strcpy(device->pnp.hardware_id, hid); - device->flags.hardware_id = 1; - } + device->pnp.hardware_id = ACPI_ALLOCATE_ZEROED(strlen (hid) + 1); + if (device->pnp.hardware_id) { + strcpy(device->pnp.hardware_id, hid); + device->flags.hardware_id = 1; + } + } else + device->pnp.hardware_id = NULL; + if (uid) { - strcpy(device->pnp.unique_id, uid); - device->flags.unique_id = 1; - } + device->pnp.unique_id = ACPI_ALLOCATE_ZEROED(strlen (uid) + 1); + if (device->pnp.unique_id) { + strcpy(device->pnp.unique_id, uid); + device->flags.unique_id = 1; + } + } else + device->pnp.unique_id = NULL; + 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; - } + struct acpica_device_id_list *list; + + if (cid_add) { + struct acpica_device_id cid; + cid.length = strlen (cid_add) + 1; + cid.string = cid_add; + + list = acpi_add_cid(info, &cid); + } else { + list = acpi_add_cid(info, NULL); } - 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"); + if (cid_add) + device->flags.compatible_ids = 1; + } } - kfree(buffer.pointer); + kfree(info); } static int acpi_device_set_context(struct acpi_device *device, int type) diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 01574a066534..bf2e2e167105 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -257,20 +257,6 @@ static int acpi_suspend_enter(suspend_state_t pm_state) /* Reprogram control registers and execute _BFS */ acpi_leave_sleep_state_prep(acpi_state); - /* ACPI 3.0 specs (P62) says that it's the responsibility - * of the OSPM to clear the status bit [ implying that the - * POWER_BUTTON event should not reach userspace ] - */ - if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3)) - acpi_clear_event(ACPI_EVENT_POWER_BUTTON); - - /* - * Disable and clear GPE status before interrupt is enabled. Some GPEs - * (like wakeup GPE) haven't handler, this can avoid such GPE misfire. - * acpi_leave_sleep_state will reenable specific GPEs later - */ - acpi_disable_all_gpes(); - local_irq_restore(flags); printk(KERN_DEBUG "Back to C!\n"); diff --git a/drivers/char/agp/hp-agp.c b/drivers/char/agp/hp-agp.c index 8f3d4c184914..7bead4c816ca 100644 --- a/drivers/char/agp/hp-agp.c +++ b/drivers/char/agp/hp-agp.c @@ -478,7 +478,6 @@ zx1_gart_probe (acpi_handle obj, u32 depth, void *context, void **ret) { acpi_handle handle, parent; acpi_status status; - struct acpi_buffer buffer; struct acpi_device_info *info; u64 lba_hpa, sba_hpa, length; int match; @@ -490,13 +489,11 @@ zx1_gart_probe (acpi_handle obj, u32 depth, void *context, void **ret) /* Look for an enclosing IOC scope and find its CSR space */ handle = obj; do { - buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; - status = acpi_get_object_info(handle, &buffer); + status = acpi_get_object_info(handle, &info); if (ACPI_SUCCESS(status)) { /* TBD check _CID also */ - info = buffer.pointer; - info->hardware_id.value[sizeof(info->hardware_id)-1] = '\0'; - match = (strcmp(info->hardware_id.value, "HWP0001") == 0); + info->hardware_id.string[sizeof(info->hardware_id.length)-1] = '\0'; + match = (strcmp(info->hardware_id.string, "HWP0001") == 0); kfree(info); if (match) { status = hp_acpi_csr_space(handle, &sba_hpa, &length); diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c index c509c9916464..c0cf45a11b93 100644 --- a/drivers/ide/ide-acpi.c +++ b/drivers/ide/ide-acpi.c @@ -114,8 +114,6 @@ static int ide_get_dev_handle(struct device *dev, acpi_handle *handle, unsigned int bus, devnum, func; acpi_integer addr; acpi_handle dev_handle; - struct acpi_buffer buffer = {.length = ACPI_ALLOCATE_BUFFER, - .pointer = NULL}; acpi_status status; struct acpi_device_info *dinfo = NULL; int ret = -ENODEV; @@ -134,12 +132,11 @@ static int ide_get_dev_handle(struct device *dev, acpi_handle *handle, goto err; } - status = acpi_get_object_info(dev_handle, &buffer); + status = acpi_get_object_info(dev_handle, &dinfo); if (ACPI_FAILURE(status)) { DEBPRINT("get_object_info for device failed\n"); goto err; } - dinfo = buffer.pointer; if (dinfo && (dinfo->valid & ACPI_VALID_ADR) && dinfo->address == addr) { *pcidevfn = addr; diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c index 5befa7e379b7..a9d926b7d805 100644 --- a/drivers/pci/hotplug/acpiphp_ibm.c +++ b/drivers/pci/hotplug/acpiphp_ibm.c @@ -398,23 +398,21 @@ static acpi_status __init ibm_find_acpi_device(acpi_handle handle, acpi_handle *phandle = (acpi_handle *)context; acpi_status status; struct acpi_device_info *info; - struct acpi_buffer info_buffer = { ACPI_ALLOCATE_BUFFER, NULL }; int retval = 0; - status = acpi_get_object_info(handle, &info_buffer); + status = acpi_get_object_info(handle, &info); if (ACPI_FAILURE(status)) { err("%s: Failed to get device information status=0x%x\n", __func__, status); return retval; } - info = info_buffer.pointer; - info->hardware_id.value[sizeof(info->hardware_id.value) - 1] = '\0'; + info->hardware_id.string[sizeof(info->hardware_id.length) - 1] = '\0'; if (info->current_status && (info->valid & ACPI_VALID_HID) && - (!strcmp(info->hardware_id.value, IBM_HARDWARE_ID1) || - !strcmp(info->hardware_id.value, IBM_HARDWARE_ID2))) { + (!strcmp(info->hardware_id.string, IBM_HARDWARE_ID1) || + !strcmp(info->hardware_id.string, IBM_HARDWARE_ID2))) { dbg("found hardware: %s, handle: %p\n", - info->hardware_id.value, handle); + info->hardware_id.string, handle); *phandle = handle; /* returning non-zero causes the search to stop * and returns this value to the caller of diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index dafaa4a92df5..f9f68e0e7344 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -976,15 +976,12 @@ static acpi_status sony_walk_callback(acpi_handle handle, u32 level, void *context, void **return_value) { struct acpi_device_info *info; - struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; - - if (ACPI_SUCCESS(acpi_get_object_info(handle, &buffer))) { - info = buffer.pointer; + if (ACPI_SUCCESS(acpi_get_object_info(handle, &info))) { printk(KERN_WARNING DRV_PFX "method: name: %4.4s, args %X\n", (char *)&info->name, info->param_count); - kfree(buffer.pointer); + kfree(info); } return AE_OK; diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c index 9496494f340e..c07fdb94d665 100644 --- a/drivers/pnp/pnpacpi/core.c +++ b/drivers/pnp/pnpacpi/core.c @@ -194,13 +194,13 @@ static int __init pnpacpi_add_device(struct acpi_device *device) pnpacpi_parse_resource_option_data(dev); if (device->flags.compatible_ids) { - struct acpi_compatible_id_list *cid_list = device->pnp.cid_list; + struct acpica_device_id_list *cid_list = device->pnp.cid_list; int i; for (i = 0; i < cid_list->count; i++) { - if (!ispnpidacpi(cid_list->id[i].value)) + if (!ispnpidacpi(cid_list->ids[i].string)) continue; - pnp_add_id(dev, cid_list->id[i].value); + pnp_add_id(dev, cid_list->ids[i].string); } } diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index c65e4ce6c3af..d0d4c51cbb94 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -89,7 +89,6 @@ struct acpi_device; typedef int (*acpi_op_add) (struct acpi_device * device); typedef int (*acpi_op_remove) (struct acpi_device * device, int type); typedef int (*acpi_op_start) (struct acpi_device * device); -typedef int (*acpi_op_stop) (struct acpi_device * device, int type); typedef int (*acpi_op_suspend) (struct acpi_device * device, pm_message_t state); typedef int (*acpi_op_resume) (struct acpi_device * device); @@ -106,7 +105,6 @@ struct acpi_device_ops { acpi_op_add add; acpi_op_remove remove; acpi_op_start start; - acpi_op_stop stop; acpi_op_suspend suspend; acpi_op_resume resume; acpi_op_bind bind; @@ -173,17 +171,15 @@ struct acpi_device_dir { typedef char acpi_bus_id[8]; typedef unsigned long acpi_bus_address; -typedef char acpi_hardware_id[15]; -typedef char acpi_unique_id[9]; typedef char acpi_device_name[40]; typedef char acpi_device_class[20]; struct acpi_device_pnp { acpi_bus_id bus_id; /* Object name */ acpi_bus_address bus_address; /* _ADR */ - acpi_hardware_id hardware_id; /* _HID */ - struct acpi_compatible_id_list *cid_list; /* _CIDs */ - acpi_unique_id unique_id; /* _UID */ + char *hardware_id; /* _HID */ + struct acpica_device_id_list *cid_list; /* _CIDs */ + char *unique_id; /* _UID */ acpi_device_name device_name; /* Driver-determined */ acpi_device_class device_class; /* " */ }; @@ -314,7 +310,7 @@ struct acpi_bus_event { extern struct kobject *acpi_kobj; extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int); -void acpi_bus_private_data_handler(acpi_handle, u32, void *); +void acpi_bus_private_data_handler(acpi_handle, void *); int acpi_bus_get_private_data(acpi_handle, void **); extern int acpi_notifier_call_chain(struct acpi_device *, u32, u32); extern int register_acpi_notifier(struct notifier_block *); @@ -327,7 +323,7 @@ extern void unregister_acpi_bus_notifier(struct notifier_block *nb); */ int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device); -void acpi_bus_data_handler(acpi_handle handle, u32 function, void *context); +void acpi_bus_data_handler(acpi_handle handle, void *context); int acpi_bus_get_status(struct acpi_device *device); int acpi_bus_get_power(acpi_handle handle, int *state); int acpi_bus_set_power(acpi_handle handle, int state); diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index 82ec6a3c0500..063e577e791e 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -47,7 +47,7 @@ /* Current ACPICA subsystem version in YYYYMMDD format */ -#define ACPI_CA_VERSION 0x20090521 +#define ACPI_CA_VERSION 0x20090625 #include "actypes.h" #include "actbl.h" @@ -64,6 +64,7 @@ extern u8 acpi_gbl_enable_interpreter_slack; extern u8 acpi_gbl_all_methods_serialized; extern u8 acpi_gbl_create_osi_method; extern u8 acpi_gbl_leave_wake_gpes_disabled; +extern u8 acpi_gbl_use_default_register_widths; extern acpi_name acpi_gbl_trace_method_name; extern u32 acpi_gbl_trace_flags; @@ -199,7 +200,8 @@ acpi_evaluate_object_typed(acpi_handle object, acpi_object_type return_type); acpi_status -acpi_get_object_info(acpi_handle handle, struct acpi_buffer *return_buffer); +acpi_get_object_info(acpi_handle handle, + struct acpi_device_info **return_buffer); acpi_status acpi_install_method(u8 *buffer); @@ -359,9 +361,9 @@ acpi_status acpi_set_firmware_waking_vector(u32 physical_address); acpi_status acpi_set_firmware_waking_vector64(u64 physical_address); #endif -acpi_status acpi_read(u32 *value, struct acpi_generic_address *reg); +acpi_status acpi_read(u64 *value, struct acpi_generic_address *reg); -acpi_status acpi_write(u32 value, struct acpi_generic_address *reg); +acpi_status acpi_write(u64 value, struct acpi_generic_address *reg); acpi_status acpi_get_sleep_type_data(u8 sleep_state, u8 * slp_typ_a, u8 * slp_typ_b); diff --git a/include/acpi/actbl.h b/include/acpi/actbl.h index 222733d01f36..0649a5670026 100644 --- a/include/acpi/actbl.h +++ b/include/acpi/actbl.h @@ -161,17 +161,24 @@ struct acpi_table_facs { u32 flags; u64 xfirmware_waking_vector; /* 64-bit version of the Firmware Waking Vector (ACPI 2.0+) */ u8 version; /* Version of this table (ACPI 2.0+) */ - u8 reserved[31]; /* Reserved, must be zero */ + u8 reserved[3]; /* Reserved, must be zero */ + u32 ospm_flags; /* Flags to be set by OSPM (ACPI 4.0) */ + u8 reserved1[24]; /* Reserved, must be zero */ }; -/* Flag macros */ +/* global_lock flags */ + +#define ACPI_GLOCK_PENDING (1) /* 00: Pending global lock ownership */ +#define ACPI_GLOCK_OWNED (1<<1) /* 01: Global lock is owned */ + +/* Flags */ -#define ACPI_FACS_S4_BIOS_PRESENT (1) /* 00: S4BIOS support is present */ +#define ACPI_FACS_S4_BIOS_PRESENT (1) /* 00: S4BIOS support is present */ +#define ACPI_FACS_64BIT_WAKE (1<<1) /* 01: 64-bit wake vector supported (ACPI 4.0) */ -/* Global lock flags */ +/* ospm_flags */ -#define ACPI_GLOCK_PENDING 0x01 /* 00: Pending global lock ownership */ -#define ACPI_GLOCK_OWNED 0x02 /* 01: Global lock is owned */ +#define ACPI_FACS_64BIT_ENVIRONMENT (1) /* 00: 64-bit wake environment is required (ACPI 4.0) */ /******************************************************************************* * diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h index 59ade0752473..ec36693f868c 100644 --- a/include/acpi/actbl1.h +++ b/include/acpi/actbl1.h @@ -1011,7 +1011,7 @@ struct acpi_madt_interrupt_source { #define ACPI_MADT_CPEI_OVERRIDE (1) -/* 9: Processor Local X2_APIC (07/2008) */ +/* 9: Processor Local X2APIC (ACPI 4.0) */ struct acpi_madt_local_x2apic { struct acpi_subtable_header header; @@ -1021,7 +1021,7 @@ struct acpi_madt_local_x2apic { u32 uid; /* ACPI processor UID */ }; -/* 10: Local X2APIC NMI (07/2008) */ +/* 10: Local X2APIC NMI (ACPI 4.0) */ struct acpi_madt_local_x2apic_nmi { struct acpi_subtable_header header; @@ -1211,7 +1211,7 @@ struct acpi_srat_mem_affinity { #define ACPI_SRAT_MEM_HOT_PLUGGABLE (1<<1) /* 01: Memory region is hot pluggable */ #define ACPI_SRAT_MEM_NON_VOLATILE (1<<2) /* 02: Memory region is non-volatile */ -/* 2: Processor Local X2_APIC Affinity (07/2008) */ +/* 2: Processor Local X2_APIC Affinity (ACPI 4.0) */ struct acpi_srat_x2apic_cpu_affinity { struct acpi_subtable_header header; @@ -1219,6 +1219,8 @@ struct acpi_srat_x2apic_cpu_affinity { u32 proximity_domain; u32 apic_id; u32 flags; + u32 clock_domain; + u32 reserved2; }; /* Flags for struct acpi_srat_cpu_affinity and struct acpi_srat_x2apic_cpu_affinity */ diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index 37ba576d06e8..ef4601149f49 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -338,7 +338,7 @@ typedef u32 acpi_physical_address; /* PM Timer ticks per second (HZ) */ -#define PM_TIMER_FREQUENCY 3579545 +#define PM_TIMER_FREQUENCY 3579545 /******************************************************************************* * @@ -732,7 +732,8 @@ typedef u8 acpi_adr_space_type; #define ACPI_ADR_SPACE_SMBUS (acpi_adr_space_type) 4 #define ACPI_ADR_SPACE_CMOS (acpi_adr_space_type) 5 #define ACPI_ADR_SPACE_PCI_BAR_TARGET (acpi_adr_space_type) 6 -#define ACPI_ADR_SPACE_DATA_TABLE (acpi_adr_space_type) 7 +#define ACPI_ADR_SPACE_IPMI (acpi_adr_space_type) 7 +#define ACPI_ADR_SPACE_DATA_TABLE (acpi_adr_space_type) 8 #define ACPI_ADR_SPACE_FIXED_HARDWARE (acpi_adr_space_type) 127 /* @@ -921,7 +922,7 @@ typedef void (*acpi_notify_handler) (acpi_handle device, u32 value, void *context); typedef -void (*acpi_object_handler) (acpi_handle object, u32 function, void *data); +void (*acpi_object_handler) (acpi_handle object, void *data); typedef acpi_status(*acpi_init_handler) (acpi_handle object, u32 function); @@ -969,38 +970,60 @@ acpi_status(*acpi_walk_callback) (acpi_handle obj_handle, #define ACPI_INTERRUPT_NOT_HANDLED 0x00 #define ACPI_INTERRUPT_HANDLED 0x01 -/* Length of _HID, _UID, _CID, and UUID values */ +/* Length of 32-bit EISAID values when converted back to a string */ + +#define ACPI_EISAID_STRING_SIZE 8 /* Includes null terminator */ + +/* Length of UUID (string) values */ -#define ACPI_DEVICE_ID_LENGTH 0x09 -#define ACPI_MAX_CID_LENGTH 48 #define ACPI_UUID_LENGTH 16 -/* Common string version of device HIDs and UIDs */ +/* Structures used for device/processor HID, UID, CID */ struct acpica_device_id { - char value[ACPI_DEVICE_ID_LENGTH]; + u32 length; /* Length of string + null */ + char *string; }; -/* Common string version of device CIDs */ - -struct acpi_compatible_id { - char value[ACPI_MAX_CID_LENGTH]; +struct acpica_device_id_list { + u32 count; /* Number of IDs in Ids array */ + u32 list_size; /* Size of list, including ID strings */ + struct acpica_device_id ids[1]; /* ID array */ }; -struct acpi_compatible_id_list { - u32 count; - u32 size; - struct acpi_compatible_id id[1]; +/* + * Structure returned from acpi_get_object_info. + * Optimized for both 32- and 64-bit builds + */ +struct acpi_device_info { + u32 info_size; /* Size of info, including ID strings */ + u32 name; /* ACPI object Name */ + acpi_object_type type; /* ACPI object Type */ + u8 param_count; /* If a method, required parameter count */ + u8 valid; /* Indicates which optional fields are valid */ + u8 flags; /* Miscellaneous info */ + u8 highest_dstates[4]; /* _sx_d values: 0xFF indicates not valid */ + u8 lowest_dstates[5]; /* _sx_w values: 0xFF indicates not valid */ + u32 current_status; /* _STA value */ + acpi_integer address; /* _ADR value */ + struct acpica_device_id hardware_id; /* _HID value */ + struct acpica_device_id unique_id; /* _UID value */ + struct acpica_device_id_list compatible_id_list; /* _CID list <must be last> */ }; -/* Structure and flags for acpi_get_object_info */ +/* Values for Flags field above (acpi_get_object_info) */ + +#define ACPI_PCI_ROOT_BRIDGE 0x01 -#define ACPI_VALID_STA 0x0001 -#define ACPI_VALID_ADR 0x0002 -#define ACPI_VALID_HID 0x0004 -#define ACPI_VALID_UID 0x0008 -#define ACPI_VALID_CID 0x0010 -#define ACPI_VALID_SXDS 0x0020 +/* Flags for Valid field above (acpi_get_object_info) */ + +#define ACPI_VALID_STA 0x01 +#define ACPI_VALID_ADR 0x02 +#define ACPI_VALID_HID 0x04 +#define ACPI_VALID_UID 0x08 +#define ACPI_VALID_CID 0x10 +#define ACPI_VALID_SXDS 0x20 +#define ACPI_VALID_SXWS 0x40 /* Flags for _STA method */ @@ -1011,29 +1034,6 @@ struct acpi_compatible_id_list { #define ACPI_STA_DEVICE_OK 0x08 /* Synonym */ #define ACPI_STA_BATTERY_PRESENT 0x10 -#define ACPI_COMMON_OBJ_INFO \ - acpi_object_type type; /* ACPI object type */ \ - acpi_name name /* ACPI object Name */ - -struct acpi_obj_info_header { - ACPI_COMMON_OBJ_INFO; -}; - -/* Structure returned from Get Object Info */ - -struct acpi_device_info { - ACPI_COMMON_OBJ_INFO; - - u32 param_count; /* If a method, required parameter count */ - u32 valid; /* Indicates which fields below are valid */ - u32 current_status; /* _STA value */ - acpi_integer address; /* _ADR value if any */ - struct acpica_device_id hardware_id; /* _HID value if any */ - struct acpica_device_id unique_id; /* _UID value if any */ - u8 highest_dstates[4]; /* _sx_d values: 0xFF indicates not valid */ - struct acpi_compatible_id_list compatibility_id; /* List of _CIDs if any */ -}; - /* Context structs for address space handlers */ struct acpi_pci_id { |