diff options
Diffstat (limited to 'drivers/acpi')
41 files changed, 1284 insertions, 266 deletions
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 7702118509a..c7b10b4298e 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -19,6 +19,7 @@ obj-y += acpi.o \ # All the builtin files are in the "acpi." module_param namespace. acpi-y += osl.o utils.o reboot.o +acpi-y += hest.o # sleep related files acpi-y += wakeup.o diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index 28ccdbc05ac..3597d73f28f 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -537,7 +537,7 @@ static int __init acpi_memory_device_init(void) status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, - acpi_memory_register_notify_handler, + acpi_memory_register_notify_handler, NULL, NULL, NULL); if (ACPI_FAILURE(status)) { @@ -561,7 +561,7 @@ static void __exit acpi_memory_device_exit(void) */ status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, - acpi_memory_deregister_notify_handler, + acpi_memory_deregister_notify_handler, NULL, NULL, NULL); if (ACPI_FAILURE(status)) diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile index e7973bc1684..7423052ece5 100644 --- a/drivers/acpi/acpica/Makefile +++ b/drivers/acpi/acpica/Makefile @@ -28,7 +28,7 @@ acpi-$(ACPI_FUTURE_USAGE) += hwtimer.o acpi-y += nsaccess.o nsload.o nssearch.o nsxfeval.o \ nsalloc.o nseval.o nsnames.o nsutils.o nsxfname.o \ nsdump.o nsinit.o nsobject.o nswalk.o nsxfobj.o \ - nsparse.o nspredef.o nsrepair.o + nsparse.o nspredef.o nsrepair.o nsrepair2.o acpi-$(ACPI_FUTURE_USAGE) += nsdumpdv.o diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h index 3acd9c6760e..7d9ba6e5755 100644 --- a/drivers/acpi/acpica/acmacros.h +++ b/drivers/acpi/acpica/acmacros.h @@ -341,6 +341,7 @@ #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 +#define ACPI_INFO_PREDEFINED(plist) acpi_ut_predefined_info plist #else @@ -349,6 +350,8 @@ #define ACPI_ERROR_NAMESPACE(s, e) #define ACPI_ERROR_METHOD(s, n, p, e) #define ACPI_WARN_PREDEFINED(plist) +#define ACPI_INFO_PREDEFINED(plist) + #endif /* ACPI_NO_ERROR_MESSAGES */ /* diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h index 09a2764c734..ab83919dda6 100644 --- a/drivers/acpi/acpica/acnamesp.h +++ b/drivers/acpi/acpica/acnamesp.h @@ -104,7 +104,8 @@ acpi_ns_walk_namespace(acpi_object_type type, acpi_handle start_object, u32 max_depth, u32 flags, - acpi_walk_callback user_function, + acpi_walk_callback pre_order_visit, + acpi_walk_callback post_order_visit, void *context, void **return_value); struct acpi_namespace_node *acpi_ns_get_next_node(struct acpi_namespace_node @@ -272,7 +273,8 @@ acpi_ns_get_attached_data(struct acpi_namespace_node *node, acpi_object_handler handler, void **data); /* - * nsrepair - return object repair for predefined methods/objects + * nsrepair - General return object repair for all + * predefined methods/objects */ acpi_status acpi_ns_repair_object(struct acpi_predefined_data *data, @@ -285,6 +287,16 @@ acpi_ns_repair_package_list(struct acpi_predefined_data *data, union acpi_operand_object **obj_desc_ptr); /* + * nsrepair2 - Return object repair for specific + * predefined methods/objects + */ +acpi_status +acpi_ns_complex_repairs(struct acpi_predefined_data *data, + struct acpi_namespace_node *node, + acpi_status validate_status, + union acpi_operand_object **return_object_ptr); + +/* * nssearch - Namespace searching and entry */ acpi_status diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h index 863a264b829..3a451a21a3f 100644 --- a/drivers/acpi/acpica/acutils.h +++ b/drivers/acpi/acpica/acutils.h @@ -386,6 +386,8 @@ u8 acpi_ut_valid_internal_object(void *object); union acpi_operand_object *acpi_ut_create_package_object(u32 count); +union acpi_operand_object *acpi_ut_create_integer_object(u64 value); + union acpi_operand_object *acpi_ut_create_buffer_object(acpi_size buffer_size); union acpi_operand_object *acpi_ut_create_string_object(acpi_size string_size); @@ -481,6 +483,11 @@ acpi_ut_predefined_warning(const char *module_name, char *pathname, u8 node_flags, const char *format, ...); +void ACPI_INTERNAL_VAR_XFACE +acpi_ut_predefined_info(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/dsinit.c b/drivers/acpi/acpica/dsinit.c index 3aae13f30c5..f23fa0be6fc 100644 --- a/drivers/acpi/acpica/dsinit.c +++ b/drivers/acpi/acpica/dsinit.c @@ -192,7 +192,7 @@ acpi_ds_initialize_objects(u32 table_index, status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, start_node, ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, acpi_ds_init_one_object, - &info, NULL); + NULL, &info, NULL); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace")); } diff --git a/drivers/acpi/acpica/dsmthdat.c b/drivers/acpi/acpica/dsmthdat.c index 7d077bb2f52..0ba19f84ad8 100644 --- a/drivers/acpi/acpica/dsmthdat.c +++ b/drivers/acpi/acpica/dsmthdat.c @@ -409,13 +409,11 @@ acpi_ds_method_data_get_value(u8 type, /* If slack enabled, init the local_x/arg_x to an Integer of value zero */ if (acpi_gbl_enable_interpreter_slack) { - object = - acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + object = acpi_ut_create_integer_object((u64) 0); if (!object) { return_ACPI_STATUS(AE_NO_MEMORY); } - object->integer.value = 0; node->object = object; } diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c index 507e1f0bbdf..9bc1ba07634 100644 --- a/drivers/acpi/acpica/dsobject.c +++ b/drivers/acpi/acpica/dsobject.c @@ -486,7 +486,7 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, * * Note: technically, this is an error, from ACPI spec: "It is an error * for NumElements to be less than the number of elements in the - * PackageList". However, we just print an error message and + * PackageList". However, we just print a message and * no exception is returned. This provides Windows compatibility. Some * BIOSs will alter the num_elements on the fly, creating this type * of ill-formed package object. @@ -510,9 +510,9 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state, arg = arg->common.next; } - ACPI_WARNING((AE_INFO, - "Package List length (0x%X) larger than NumElements count (0x%X), truncated\n", - i, element_count)); + ACPI_INFO((AE_INFO, + "Actual Package length (0x%X) is larger than NumElements field (0x%X), truncated\n", + i, element_count)); } else if (i < element_count) { /* * Arg list (elements) was exhausted, but we did not reach num_elements count. diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c index 6de3a99d4cd..10fc7851784 100644 --- a/drivers/acpi/acpica/dswload.c +++ b/drivers/acpi/acpica/dswload.c @@ -639,26 +639,42 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state, break; case AML_SCOPE_OP: - /* - * The Path is an object reference to an existing object. - * Don't enter the name into the namespace, but look it up - * for use later. - */ - status = - acpi_ns_lookup(walk_state->scope_info, buffer_ptr, - object_type, ACPI_IMODE_EXECUTE, - ACPI_NS_SEARCH_PARENT, walk_state, &(node)); - if (ACPI_FAILURE(status)) { -#ifdef ACPI_ASL_COMPILER - if (status == AE_NOT_FOUND) { - status = AE_OK; - } else { - ACPI_ERROR_NAMESPACE(buffer_ptr, status); + + /* Special case for Scope(\) -> refers to the Root node */ + + if (op && (op->named.node == acpi_gbl_root_node)) { + node = op->named.node; + + status = + acpi_ds_scope_stack_push(node, object_type, + walk_state); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } + } else { + /* + * The Path is an object reference to an existing object. + * Don't enter the name into the namespace, but look it up + * for use later. + */ + status = + acpi_ns_lookup(walk_state->scope_info, buffer_ptr, + object_type, ACPI_IMODE_EXECUTE, + ACPI_NS_SEARCH_PARENT, walk_state, + &(node)); + if (ACPI_FAILURE(status)) { +#ifdef ACPI_ASL_COMPILER + if (status == AE_NOT_FOUND) { + status = AE_OK; + } else { + ACPI_ERROR_NAMESPACE(buffer_ptr, + status); + } #else - ACPI_ERROR_NAMESPACE(buffer_ptr, status); + ACPI_ERROR_NAMESPACE(buffer_ptr, status); #endif - return_ACPI_STATUS(status); + return_ACPI_STATUS(status); + } } /* diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c index a60aaa7635f..24792090018 100644 --- a/drivers/acpi/acpica/evgpeblk.c +++ b/drivers/acpi/acpica/evgpeblk.c @@ -945,8 +945,8 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device, status = acpi_ns_walk_namespace(ACPI_TYPE_METHOD, gpe_device, ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK, - acpi_ev_save_method_info, gpe_block, - NULL); + acpi_ev_save_method_info, NULL, + gpe_block, NULL); /* Return the new block */ @@ -1022,8 +1022,8 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device, status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, - acpi_ev_match_prw_and_gpe, &gpe_info, - NULL); + acpi_ev_match_prw_and_gpe, NULL, + &gpe_info, NULL); } /* diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c index 98c7f9c6265..0bc807c33a5 100644 --- a/drivers/acpi/acpica/evregion.c +++ b/drivers/acpi/acpica/evregion.c @@ -51,6 +51,10 @@ ACPI_MODULE_NAME("evregion") /* Local prototypes */ +static u8 +acpi_ev_has_default_handler(struct acpi_namespace_node *node, + acpi_adr_space_type space_id); + static acpi_status acpi_ev_reg_run(acpi_handle obj_handle, u32 level, void *context, void **return_value); @@ -142,6 +146,50 @@ acpi_status acpi_ev_install_region_handlers(void) /******************************************************************************* * + * FUNCTION: acpi_ev_has_default_handler + * + * PARAMETERS: Node - Namespace node for the device + * space_id - The address space ID + * + * RETURN: TRUE if default handler is installed, FALSE otherwise + * + * DESCRIPTION: Check if the default handler is installed for the requested + * space ID. + * + ******************************************************************************/ + +static u8 +acpi_ev_has_default_handler(struct acpi_namespace_node *node, + acpi_adr_space_type space_id) +{ + union acpi_operand_object *obj_desc; + union acpi_operand_object *handler_obj; + + /* Must have an existing internal object */ + + obj_desc = acpi_ns_get_attached_object(node); + if (obj_desc) { + handler_obj = obj_desc->device.handler; + + /* Walk the linked list of handlers for this object */ + + while (handler_obj) { + if (handler_obj->address_space.space_id == space_id) { + if (handler_obj->address_space.handler_flags & + ACPI_ADDR_HANDLER_DEFAULT_INSTALLED) { + return (TRUE); + } + } + + handler_obj = handler_obj->address_space.next; + } + } + + return (FALSE); +} + +/******************************************************************************* + * * FUNCTION: acpi_ev_initialize_op_regions * * PARAMETERS: None @@ -169,12 +217,18 @@ acpi_status acpi_ev_initialize_op_regions(void) for (i = 0; i < ACPI_NUM_DEFAULT_SPACES; i++) { /* - * TBD: Make sure handler is the DEFAULT handler, otherwise - * _REG will have already been run. + * Make sure the installed handler is the DEFAULT handler. If not the + * default, the _REG methods will have already been run (when the + * handler was installed) */ - status = acpi_ev_execute_reg_methods(acpi_gbl_root_node, - acpi_gbl_default_address_spaces - [i]); + if (acpi_ev_has_default_handler(acpi_gbl_root_node, + acpi_gbl_default_address_spaces + [i])) { + status = + acpi_ev_execute_reg_methods(acpi_gbl_root_node, + acpi_gbl_default_address_spaces + [i]); + } } (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); @@ -235,23 +289,20 @@ acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function) * connection status 1 for connecting the handler, 0 for disconnecting * the handler (Passed as a parameter) */ - args[0] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + args[0] = + acpi_ut_create_integer_object((u64) region_obj->region.space_id); if (!args[0]) { status = AE_NO_MEMORY; goto cleanup1; } - args[1] = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + args[1] = acpi_ut_create_integer_object((u64) function); if (!args[1]) { status = AE_NO_MEMORY; goto cleanup2; } - /* Setup the parameter objects */ - - args[0]->integer.value = region_obj->region.space_id; - args[1]->integer.value = function; - args[2] = NULL; + args[2] = NULL; /* Terminate list */ /* Execute the method, no return value */ @@ -971,8 +1022,8 @@ acpi_ev_install_space_handler(struct acpi_namespace_node * node, */ status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, - acpi_ev_install_handler, handler_obj, - NULL); + acpi_ev_install_handler, NULL, + handler_obj, NULL); unlock_and_exit: return_ACPI_STATUS(status); @@ -1008,7 +1059,7 @@ acpi_ev_execute_reg_methods(struct acpi_namespace_node *node, */ status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, node, ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, acpi_ev_reg_run, - &space_id, NULL); + NULL, &space_id, NULL); return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/exconfig.c b/drivers/acpi/acpica/exconfig.c index 24afef81af3..46adfa541cb 100644 --- a/drivers/acpi/acpica/exconfig.c +++ b/drivers/acpi/acpica/exconfig.c @@ -170,14 +170,12 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state, /* Table not found, return an Integer=0 and AE_OK */ - ddb_handle = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + ddb_handle = acpi_ut_create_integer_object((u64) 0); if (!ddb_handle) { return_ACPI_STATUS(AE_NO_MEMORY); } - ddb_handle->integer.value = 0; *return_desc = ddb_handle; - return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/acpica/exconvrt.c b/drivers/acpi/acpica/exconvrt.c index 37d0d39e60a..51d5f224f9f 100644 --- a/drivers/acpi/acpica/exconvrt.c +++ b/drivers/acpi/acpica/exconvrt.c @@ -167,7 +167,7 @@ acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc, /* Create a new integer */ - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + return_desc = acpi_ut_create_integer_object(result); if (!return_desc) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -177,7 +177,6 @@ acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc, /* Save the Result */ - return_desc->integer.value = result; acpi_ex_truncate_for32bit_table(return_desc); *result_desc = return_desc; return_ACPI_STATUS(AE_OK); diff --git a/drivers/acpi/acpica/exfield.c b/drivers/acpi/acpica/exfield.c index 0b33d6c887b..1588a2d660e 100644 --- a/drivers/acpi/acpica/exfield.c +++ b/drivers/acpi/acpica/exfield.c @@ -162,13 +162,12 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, } else { /* Field will fit within an Integer (normal case) */ - buffer_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + buffer_desc = acpi_ut_create_integer_object((u64) 0); if (!buffer_desc) { return_ACPI_STATUS(AE_NO_MEMORY); } length = acpi_gbl_integer_byte_width; - buffer_desc->integer.value = 0; buffer = &buffer_desc->integer.value; } diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c index 9635d21e568..752fe48b2d2 100644 --- a/drivers/acpi/acpica/exoparg1.c +++ b/drivers/acpi/acpica/exoparg1.c @@ -100,12 +100,12 @@ acpi_status acpi_ex_opcode_0A_0T_1R(struct acpi_walk_state *walk_state) /* Create a return object of type Integer */ - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + return_desc = + acpi_ut_create_integer_object(acpi_os_get_timer()); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; } - return_desc->integer.value = acpi_os_get_timer(); break; default: /* Unknown opcode */ @@ -599,7 +599,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) switch (walk_state->opcode) { case AML_LNOT_OP: /* LNot (Operand) */ - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + return_desc = acpi_ut_create_integer_object((u64) 0); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; @@ -702,13 +702,11 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) /* Allocate a descriptor to hold the type. */ - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + return_desc = acpi_ut_create_integer_object((u64) type); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; } - - return_desc->integer.value = type; break; case AML_SIZE_OF_OP: /* size_of (source_object) */ @@ -777,13 +775,11 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) * Now that we have the size of the object, create a result * object to hold the value */ - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + return_desc = acpi_ut_create_integer_object(value); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; } - - return_desc->integer.value = value; break; case AML_REF_OF_OP: /* ref_of (source_object) */ @@ -946,24 +942,24 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) * NOTE: index into a buffer is NOT a pointer to a * sub-buffer of the main buffer, it is only a pointer to a * single element (byte) of the buffer! + * + * Since we are returning the value of the buffer at the + * indexed location, we don't need to add an additional + * reference to the buffer itself. */ return_desc = - acpi_ut_create_internal_object - (ACPI_TYPE_INTEGER); + acpi_ut_create_integer_object((u64) + temp_desc-> + buffer. + pointer + [operand + [0]-> + reference. + value]); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; } - - /* - * Since we are returning the value of the buffer at the - * indexed location, we don't need to add an additional - * reference to the buffer itself. - */ - return_desc->integer.value = - temp_desc->buffer. - pointer[operand[0]->reference. - value]; break; case ACPI_TYPE_PACKAGE: diff --git a/drivers/acpi/acpica/exoparg6.c b/drivers/acpi/acpica/exoparg6.c index ae43f7670a6..295542e6bd5 100644 --- a/drivers/acpi/acpica/exoparg6.c +++ b/drivers/acpi/acpica/exoparg6.c @@ -253,18 +253,15 @@ acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state) } /* Create an integer for the return value */ + /* Default return value is ACPI_INTEGER_MAX if no match found */ - return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + return_desc = acpi_ut_create_integer_object(ACPI_INTEGER_MAX); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; } - /* Default return value if no match found */ - - return_desc->integer.value = ACPI_INTEGER_MAX; - /* * Examine each element until a match is found. Both match conditions * must be satisfied for a match to occur. Within the loop, diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c index 2bad613db73..2deb986861c 100644 --- a/drivers/acpi/acpica/nsdump.c +++ b/drivers/acpi/acpica/nsdump.c @@ -634,8 +634,8 @@ acpi_ns_dump_objects(acpi_object_type type, (void)acpi_ns_walk_namespace(type, start_handle, max_depth, ACPI_NS_WALK_NO_UNLOCK | ACPI_NS_WALK_TEMP_NODES, - acpi_ns_dump_one_object, (void *)&info, - NULL); + acpi_ns_dump_one_object, NULL, + (void *)&info, NULL); } #endif /* ACPI_FUTURE_USAGE */ diff --git a/drivers/acpi/acpica/nsdumpdv.c b/drivers/acpi/acpica/nsdumpdv.c index 0fe87f1aef1..36be7f0e97e 100644 --- a/drivers/acpi/acpica/nsdumpdv.c +++ b/drivers/acpi/acpica/nsdumpdv.c @@ -131,7 +131,8 @@ void acpi_ns_dump_root_devices(void) status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, sys_bus_handle, ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK, - acpi_ns_dump_one_device, NULL, NULL); + acpi_ns_dump_one_device, NULL, NULL, + NULL); } #endif diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c index 846d1132feb..f771e978c40 100644 --- a/drivers/acpi/acpica/nseval.c +++ b/drivers/acpi/acpica/nseval.c @@ -366,33 +366,49 @@ static void acpi_ns_exec_module_code(union acpi_operand_object *method_obj, struct acpi_evaluate_info *info) { - union acpi_operand_object *root_obj; + union acpi_operand_object *parent_obj; + struct acpi_namespace_node *parent_node; + acpi_object_type type; acpi_status status; ACPI_FUNCTION_TRACE(ns_exec_module_code); + /* + * Get the parent node. We cheat by using the next_object field + * of the method object descriptor. + */ + parent_node = ACPI_CAST_PTR(struct acpi_namespace_node, + method_obj->method.next_object); + type = acpi_ns_get_type(parent_node); + + /* Must clear next_object (acpi_ns_attach_object needs the field) */ + + method_obj->method.next_object = NULL; + /* Initialize the evaluation information block */ ACPI_MEMSET(info, 0, sizeof(struct acpi_evaluate_info)); - info->prefix_node = acpi_gbl_root_node; + info->prefix_node = parent_node; /* - * Get the currently attached root object. Add a reference, because the + * Get the currently attached parent object. Add a reference, because the * ref count will be decreased when the method object is installed to - * the root node. + * the parent node. */ - root_obj = acpi_ns_get_attached_object(acpi_gbl_root_node); - acpi_ut_add_reference(root_obj); + parent_obj = acpi_ns_get_attached_object(parent_node); + if (parent_obj) { + acpi_ut_add_reference(parent_obj); + } - /* Install the method (module-level code) in the root node */ + /* Install the method (module-level code) in the parent node */ - status = acpi_ns_attach_object(acpi_gbl_root_node, method_obj, + status = acpi_ns_attach_object(parent_node, method_obj, ACPI_TYPE_METHOD); if (ACPI_FAILURE(status)) { goto exit; } - /* Execute the root node as a control method */ + /* Execute the parent node as a control method */ status = acpi_ns_evaluate(info); @@ -401,15 +417,19 @@ acpi_ns_exec_module_code(union acpi_operand_object *method_obj, /* Detach the temporary method object */ - acpi_ns_detach_object(acpi_gbl_root_node); + acpi_ns_detach_object(parent_node); - /* Restore the original root object */ + /* Restore the original parent object */ - status = - acpi_ns_attach_object(acpi_gbl_root_node, root_obj, - ACPI_TYPE_DEVICE); + if (parent_obj) { + status = acpi_ns_attach_object(parent_node, parent_obj, type); + } else { + parent_node->type = (u8)type; + } exit: - acpi_ut_remove_reference(root_obj); + if (parent_obj) { + acpi_ut_remove_reference(parent_obj); + } return_VOID; } diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c index 1d5b360eb25..4f8abac231d 100644 --- a/drivers/acpi/acpica/nsinit.c +++ b/drivers/acpi/acpica/nsinit.c @@ -96,7 +96,7 @@ acpi_status acpi_ns_initialize_objects(void) /* Walk entire namespace from the supplied root */ status = acpi_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, acpi_ns_init_one_object, + ACPI_UINT32_MAX, acpi_ns_init_one_object, NULL, &info, NULL); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, "During WalkNamespace")); @@ -156,7 +156,8 @@ acpi_status acpi_ns_initialize_devices(void) status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, FALSE, - acpi_ns_find_ini_methods, &info, NULL); + acpi_ns_find_ini_methods, NULL, &info, + NULL); if (ACPI_FAILURE(status)) { goto error_exit; } @@ -189,7 +190,8 @@ acpi_status acpi_ns_initialize_devices(void) status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, FALSE, - acpi_ns_init_one_device, &info, NULL); + acpi_ns_init_one_device, NULL, &info, + NULL); ACPI_FREE(info.evaluate_info); if (ACPI_FAILURE(status)) { diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c index f8427afeebd..b05f42903c8 100644 --- a/drivers/acpi/acpica/nspredef.c +++ b/drivers/acpi/acpica/nspredef.c @@ -232,6 +232,12 @@ acpi_ns_check_predefined_names(struct acpi_namespace_node *node, status = acpi_ns_check_package(data, return_object_ptr); } + /* + * Perform additional, more complicated repairs on a per-name + * basis. + */ + status = acpi_ns_complex_repairs(data, node, status, return_object_ptr); + check_validation_status: /* * If the object validation failed or if we successfully repaired one @@ -601,7 +607,8 @@ acpi_ns_check_package(struct acpi_predefined_data *data, * there is only one entry). We may be able to repair this by * wrapping the returned Package with a new outer Package. */ - if ((*elements)->common.type != ACPI_TYPE_PACKAGE) { + if (*elements + && ((*elements)->common.type != ACPI_TYPE_PACKAGE)) { /* Create the new outer package and populate it */ @@ -673,6 +680,7 @@ acpi_ns_check_package_list(struct acpi_predefined_data *data, union acpi_operand_object *sub_package; union acpi_operand_object **sub_elements; acpi_status status; + u8 non_trailing_null = FALSE; u32 expected_count; u32 i; u32 j; @@ -680,6 +688,45 @@ acpi_ns_check_package_list(struct acpi_predefined_data *data, /* Validate each sub-Package in the parent Package */ for (i = 0; i < count; i++) { + /* + * Handling for NULL package elements. For now, we will simply allow + * a parent package with trailing NULL elements. This can happen if + * the package was defined to be longer than the initializer list. + * This is legal as per the ACPI specification. It is often used + * to allow for dynamic initialization of a Package. + * + * A future enhancement may be to simply truncate the package to + * remove the trailing NULL elements. + */ + if (!(*elements)) { + if (!non_trailing_null) { + + /* Ensure the remaining elements are all NULL */ + + for (j = 1; j < (count - i + 1); j++) { + if (elements[j]) { + non_trailing_null = TRUE; + } + } + + if (!non_trailing_null) { + + /* Ignore the trailing NULL elements */ + + return (AE_OK); + } + } + + /* There are trailing non-null elements, issue warning */ + + ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, + data->node_flags, + "Found NULL element at package index %u", + i)); + elements++; + continue; + } + sub_package = *elements; sub_elements = sub_package->package.elements; diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c index db2b2a99c3a..d563f1a564a 100644 --- a/drivers/acpi/acpica/nsrepair.c +++ b/drivers/acpi/acpica/nsrepair.c @@ -44,6 +44,7 @@ #include <acpi/acpi.h> #include "accommon.h" #include "acnamesp.h" +#include "acinterp.h" #include "acpredef.h" #define _COMPONENT ACPI_NAMESPACE @@ -76,7 +77,13 @@ acpi_ns_repair_object(struct acpi_predefined_data *data, union acpi_operand_object *return_object = *return_object_ptr; union acpi_operand_object *new_object; acpi_size length; + acpi_status status; + /* + * At this point, we know that the type of the returned object was not + * one of the expected types for this predefined name. Attempt to + * repair the object. Only a limited number of repairs are possible. + */ switch (return_object->common.type) { case ACPI_TYPE_BUFFER: @@ -111,43 +118,94 @@ acpi_ns_repair_object(struct acpi_predefined_data *data, */ ACPI_MEMCPY(new_object->string.pointer, return_object->buffer.pointer, length); + break; - /* - * If the original object is a package element, we need to: - * 1. Set the reference count of the new object to match the - * reference count of the old object. - * 2. Decrement the reference count of the original object. - */ - if (package_index != ACPI_NOT_PACKAGE_ELEMENT) { - new_object->common.reference_count = - return_object->common.reference_count; + case ACPI_TYPE_INTEGER: + + /* 1) Does the method/object legally return a buffer? */ + + if (expected_btypes & ACPI_RTYPE_BUFFER) { + /* + * Convert the Integer to a packed-byte buffer. _MAT needs + * this sometimes, if a read has been performed on a Field + * object that is less than or equal to the global integer + * size (32 or 64 bits). + */ + status = + acpi_ex_convert_to_buffer(return_object, + &new_object); + if (ACPI_FAILURE(status)) { + return (status); + } + } - if (return_object->common.reference_count > 1) { - return_object->common.reference_count--; + /* 2) Does the method/object legally return a string? */ + + else if (expected_btypes & ACPI_RTYPE_STRING) { + /* + * The only supported Integer-to-String conversion is to convert + * an integer of value 0 to a NULL string. The last element of + * _BIF and _BIX packages occasionally need this fix. + */ + if (return_object->integer.value != 0) { + return (AE_AML_OPERAND_TYPE); } - ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, - data->node_flags, - "Converted Buffer to expected String at index %u", - package_index)); + /* Allocate a new NULL string object */ + + new_object = acpi_ut_create_string_object(0); + if (!new_object) { + return (AE_NO_MEMORY); + } } else { - ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, - data->node_flags, - "Converted Buffer to expected String")); + return (AE_AML_OPERAND_TYPE); } + break; - /* Delete old object, install the new return object */ + default: - acpi_ut_remove_reference(return_object); - *return_object_ptr = new_object; - data->flags |= ACPI_OBJECT_REPAIRED; - return (AE_OK); + /* We cannot repair this object */ - default: - break; + return (AE_AML_OPERAND_TYPE); + } + + /* Object was successfully repaired */ + + /* + * If the original object is a package element, we need to: + * 1. Set the reference count of the new object to match the + * reference count of the old object. + * 2. Decrement the reference count of the original object. + */ + if (package_index != ACPI_NOT_PACKAGE_ELEMENT) { + new_object->common.reference_count = + return_object->common.reference_count; + + if (return_object->common.reference_count > 1) { + return_object->common.reference_count--; + } + + ACPI_INFO_PREDEFINED((AE_INFO, data->pathname, data->node_flags, + "Converted %s to expected %s at index %u", + acpi_ut_get_object_type_name + (return_object), + acpi_ut_get_object_type_name(new_object), + package_index)); + } else { + ACPI_INFO_PREDEFINED((AE_INFO, data->pathname, data->node_flags, + "Converted %s to expected %s", + acpi_ut_get_object_type_name + (return_object), + acpi_ut_get_object_type_name + (new_object))); } - return (AE_AML_OPERAND_TYPE); + /* 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); } /******************************************************************************* @@ -196,8 +254,8 @@ acpi_ns_repair_package_list(struct acpi_predefined_data *data, *obj_desc_ptr = pkg_obj_desc; data->flags |= ACPI_OBJECT_REPAIRED; - ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, data->node_flags, - "Incorrectly formed Package, attempting repair")); + ACPI_INFO_PREDEFINED((AE_INFO, data->pathname, data->node_flags, + "Repaired Incorrectly formed Package")); return (AE_OK); } diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c new file mode 100644 index 00000000000..d07b6861381 --- /dev/null +++ b/drivers/acpi/acpica/nsrepair2.c @@ -0,0 +1,540 @@ +/****************************************************************************** + * + * Module Name: nsrepair2 - Repair for objects returned by specific + * predefined methods + * + *****************************************************************************/ + +/* + * Copyright (C) 2000 - 2009, Intel Corp. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions, and the following disclaimer, + * without modification. + * 2. Redistributions in binary form must reproduce at minimum a disclaimer + * substantially similar to the "NO WARRANTY" disclaimer below + * ("Disclaimer") and any redistribution must be conditioned upon + * including a substantially similar Disclaimer requirement for further + * binary redistribution. + * 3. Neither the names of the above-listed copyright holders nor the names + * of any contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * NO WARRANTY + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING + * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGES. + */ + +#include <acpi/acpi.h> +#include "accommon.h" +#include "acnamesp.h" + +#define _COMPONENT ACPI_NAMESPACE +ACPI_MODULE_NAME("nsrepair2") + +/* + * Information structure and handler for ACPI predefined names that can + * be repaired on a per-name basis. + */ +typedef +acpi_status(*acpi_repair_function) (struct acpi_predefined_data *data, + union acpi_operand_object **return_object_ptr); + +typedef struct acpi_repair_info { + char name[ACPI_NAME_SIZE]; + acpi_repair_function repair_function; + +} acpi_repair_info; + +/* Local prototypes */ + +static const struct acpi_repair_info *acpi_ns_match_repairable_name(struct + acpi_namespace_node + *node); + +static acpi_status +acpi_ns_repair_ALR(struct acpi_predefined_data *data, + union acpi_operand_object **return_object_ptr); + +static acpi_status +acpi_ns_repair_PSS(struct acpi_predefined_data *data, + union acpi_operand_object **return_object_ptr); + +static acpi_status +acpi_ns_repair_TSS(struct acpi_predefined_data *data, + union acpi_operand_object **return_object_ptr); + +static acpi_status +acpi_ns_check_sorted_list(struct acpi_predefined_data *data, + union acpi_operand_object *return_object, + u32 expected_count, + u32 sort_index, + u8 sort_direction, char *sort_key_name); + +static acpi_status +acpi_ns_remove_null_elements(union acpi_operand_object *package); + +static acpi_status +acpi_ns_sort_list(union acpi_operand_object **elements, + u32 count, u32 index, u8 sort_direction); + +/* Values for sort_direction above */ + +#define ACPI_SORT_ASCENDING 0 +#define ACPI_SORT_DESCENDING 1 + +/* + * This table contains the names of the predefined methods for which we can + * perform more complex repairs. + * + * _ALR: Sort the list ascending by ambient_illuminance if necessary + * _PSS: Sort the list descending by Power if necessary + * _TSS: Sort the list descending by Power if necessary + */ +static const struct acpi_repair_info acpi_ns_repairable_names[] = { + {"_ALR", acpi_ns_repair_ALR}, + {"_PSS", acpi_ns_repair_PSS}, + {"_TSS", acpi_ns_repair_TSS}, + {{0, 0, 0, 0}, NULL} /* Table terminator */ +}; + +/****************************************************************************** + * + * FUNCTION: acpi_ns_complex_repairs + * + * PARAMETERS: Data - Pointer to validation data structure + * Node - Namespace node for the method/object + * validate_status - Original status of earlier validation + * return_object_ptr - Pointer to the object returned from the + * evaluation of a method or object + * + * RETURN: Status. AE_OK if repair was successful. If name is not + * matched, validate_status is returned. + * + * DESCRIPTION: Attempt to repair/convert a return object of a type that was + * not expected. + * + *****************************************************************************/ + +acpi_status +acpi_ns_complex_repairs(struct acpi_predefined_data *data, + struct acpi_namespace_node *node, + acpi_status validate_status, + union acpi_operand_object **return_object_ptr) +{ + const struct acpi_repair_info *predefined; + acpi_status status; + + /* Check if this name is in the list of repairable names */ + + predefined = acpi_ns_match_repairable_name(node); + if (!predefined) { + return (validate_status); + } + + status = predefined->repair_function(data, return_object_ptr); + return (status); +} + +/****************************************************************************** + * + * FUNCTION: acpi_ns_match_repairable_name + * + * PARAMETERS: Node - Namespace node for the method/object + * + * RETURN: Pointer to entry in repair table. NULL indicates not found. + * + * DESCRIPTION: Check an object name against the repairable object list. + * + *****************************************************************************/ + +static const struct acpi_repair_info *acpi_ns_match_repairable_name(struct + acpi_namespace_node + *node) +{ + const struct acpi_repair_info *this_name; + + /* Search info table for a repairable predefined method/object name */ + + this_name = acpi_ns_repairable_names; + while (this_name->repair_function) { + if (ACPI_COMPARE_NAME(node->name.ascii, this_name->name)) { + return (this_name); + } + this_name++; + } + + return (NULL); /* Not found */ +} + +/****************************************************************************** + * + * FUNCTION: acpi_ns_repair_ALR + * + * PARAMETERS: Data - Pointer to validation data structure + * return_object_ptr - Pointer to the object returned from the + * evaluation of a method or object + * + * RETURN: Status. AE_OK if object is OK or was repaired successfully + * + * DESCRIPTION: Repair for the _ALR object. If necessary, sort the object list + * ascending by the ambient illuminance values. + * + *****************************************************************************/ + +static acpi_status +acpi_ns_repair_ALR(struct acpi_predefined_data *data, + union acpi_operand_object **return_object_ptr) +{ + union acpi_operand_object *return_object = *return_object_ptr; + acpi_status status; + + status = acpi_ns_check_sorted_list(data, return_object, 2, 1, + ACPI_SORT_ASCENDING, + "AmbientIlluminance"); + + return (status); +} + +/****************************************************************************** + * + * FUNCTION: acpi_ns_repair_TSS + * + * PARAMETERS: Data - Pointer to validation data structure + * return_object_ptr - Pointer to the object returned from the + * evaluation of a method or object + * + * RETURN: Status. AE_OK if object is OK or was repaired successfully + * + * DESCRIPTION: Repair for the _TSS object. If necessary, sort the object list + * descending by the power dissipation values. + * + *****************************************************************************/ + +static acpi_status +acpi_ns_repair_TSS(struct acpi_predefined_data *data, + union acpi_operand_object **return_object_ptr) +{ + union acpi_operand_object *return_object = *return_object_ptr; + acpi_status status; + + status = acpi_ns_check_sorted_list(data, return_object, 5, 1, + ACPI_SORT_DESCENDING, + "PowerDissipation"); + + return (status); +} + +/****************************************************************************** + * + * FUNCTION: acpi_ns_repair_PSS + * + * PARAMETERS: Data - Pointer to validation data structure + * return_object_ptr - Pointer to the object returned from the + * evaluation of a method or object + * + * RETURN: Status. AE_OK if object is OK or was repaired successfully + * + * DESCRIPTION: Repair for the _PSS object. If necessary, sort the object list + * by the CPU frequencies. Check that the power dissipation values + * are all proportional to CPU frequency (i.e., sorting by + * frequency should be the same as sorting by power.) + * + *****************************************************************************/ + +static acpi_status +acpi_ns_repair_PSS(struct acpi_predefined_data *data, + union acpi_operand_object **return_object_ptr) +{ + union acpi_operand_object *return_object = *return_object_ptr; + union acpi_operand_object **outer_elements; + u32 outer_element_count; + union acpi_operand_object **elements; + union acpi_operand_object *obj_desc; + u32 previous_value; + acpi_status status; + u32 i; + + /* + * Entries (sub-packages) in the _PSS Package must be sorted by power + * dissipation, in descending order. If it appears that the list is + * incorrectly sorted, sort it. We sort by cpu_frequency, since this + * should be proportional to the power. + */ + status = acpi_ns_check_sorted_list(data, return_object, 6, 0, + ACPI_SORT_DESCENDING, + "CpuFrequency"); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* + * We now know the list is correctly sorted by CPU frequency. Check if + * the power dissipation values are proportional. + */ + previous_value = ACPI_UINT32_MAX; + outer_elements = return_object->package.elements; + outer_element_count = return_object->package.count; + + for (i = 0; i < outer_element_count; i++) { + elements = (*outer_elements)->package.elements; + obj_desc = elements[1]; /* Index1 = power_dissipation */ + + if ((u32) obj_desc->integer.value > previous_value) { + ACPI_WARN_PREDEFINED((AE_INFO, data->pathname, + data->node_flags, + "SubPackage[%u,%u] - suspicious power dissipation values", + i - 1, i)); + } + + previous_value = (u32) obj_desc->integer.value; + outer_elements++; + } + + return (AE_OK); +} + +/****************************************************************************** + * + * FUNCTION: acpi_ns_check_sorted_list + * + * PARAMETERS: Data - Pointer to validation data structure + * return_object - Pointer to the top-level returned object + * expected_count - Minimum length of each sub-package + * sort_index - Sub-package entry to sort on + * sort_direction - Ascending or descending + * sort_key_name - Name of the sort_index field + * + * RETURN: Status. AE_OK if the list is valid and is sorted correctly or + * has been repaired by sorting the list. + * + * DESCRIPTION: Check if the package list is valid and sorted correctly by the + * sort_index. If not, then sort the list. + * + *****************************************************************************/ + +static acpi_status +acpi_ns_check_sorted_list(struct acpi_predefined_data *data, + union acpi_operand_object *return_object, + u32 expected_count, + u32 sort_index, + u8 sort_direction, char *sort_key_name) +{ + u32 outer_element_count; + union acpi_operand_object **outer_elements; + union acpi_operand_object **elements; + union acpi_operand_object *obj_desc; + u32 i; + u32 previous_value; + acpi_status status; + + /* The top-level object must be a package */ + + if (return_object->common.type != ACPI_TYPE_PACKAGE) { + return (AE_AML_OPERAND_TYPE); + } + + /* + * Detect any NULL package elements and remove them from the + * package. + * + * TBD: We may want to do this for all predefined names that + * return a variable-length package of packages. + */ + status = acpi_ns_remove_null_elements(return_object); + if (status == AE_NULL_ENTRY) { + ACPI_INFO_PREDEFINED((AE_INFO, data->pathname, data->node_flags, + "NULL elements removed from package")); + + /* Exit if package is now zero length */ + + if (!return_object->package.count) { + return (AE_NULL_ENTRY); + } + } + + outer_elements = return_object->package.elements; + outer_element_count = return_object->package.count; + if (!outer_element_count) { + return (AE_AML_PACKAGE_LIMIT); + } + + previous_value = 0; + if (sort_direction == ACPI_SORT_DESCENDING) { + previous_value = ACPI_UINT32_MAX; + } + + /* Examine each subpackage */ + + for (i = 0; i < outer_element_count; i++) { + + /* Each element of the top-level package must also be a package */ + + if ((*outer_elements)->common.type != ACPI_TYPE_PACKAGE) { + return (AE_AML_OPERAND_TYPE); + } + + /* Each sub-package must have the minimum length */ + + if ((*outer_elements)->package.count < expected_count) { + return (AE_AML_PACKAGE_LIMIT); + } + + elements = (*outer_elements)->package.elements; + obj_desc = elements[sort_index]; + + if (obj_desc->common.type != ACPI_TYPE_INTEGER) { + return (AE_AML_OPERAND_TYPE); + } + + /* + * The list must be sorted in the specified order. If we detect a + * discrepancy, issue a warning and sort the entire list + */ + if (((sort_direction == ACPI_SORT_ASCENDING) && + (obj_desc->integer.value < previous_value)) || + ((sort_direction == ACPI_SORT_DESCENDING) && + (obj_desc->integer.value > previous_value))) { + status = + acpi_ns_sort_list(return_object->package.elements, + outer_element_count, sort_index, + sort_direction); + if (ACPI_FAILURE(status)) { + return (status); + } + + data->flags |= ACPI_OBJECT_REPAIRED; + + ACPI_INFO_PREDEFINED((AE_INFO, data->pathname, + data->node_flags, + "Repaired unsorted list - now sorted by %s", + sort_key_name)); + return (AE_OK); + } + + previous_value = (u32) obj_desc->integer.value; + outer_elements++; + } + + return (AE_OK); +} + +/****************************************************************************** + * + * FUNCTION: acpi_ns_remove_null_elements + * + * PARAMETERS: obj_desc - A Package object + * + * RETURN: Status. AE_NULL_ENTRY means that one or more elements were + * removed. + * + * DESCRIPTION: Remove all NULL package elements and update the package count. + * + *****************************************************************************/ + +static acpi_status +acpi_ns_remove_null_elements(union acpi_operand_object *obj_desc) +{ + union acpi_operand_object **source; + union acpi_operand_object **dest; + acpi_status status = AE_OK; + u32 count; + u32 new_count; + u32 i; + + count = obj_desc->package.count; + new_count = count; + + source = obj_desc->package.elements; + dest = source; + + /* Examine all elements of the package object */ + + for (i = 0; i < count; i++) { + if (!*source) { + status = AE_NULL_ENTRY; + new_count--; + } else { + *dest = *source; + dest++; + } + source++; + } + + if (status == AE_NULL_ENTRY) { + + /* NULL terminate list and update the package count */ + + *dest = NULL; + obj_desc->package.count = new_count; + } + + return (status); +} + +/****************************************************************************** + * + * FUNCTION: acpi_ns_sort_list + * + * PARAMETERS: Elements - Package object element list + * Count - Element count for above + * Index - Sort by which package element + * sort_direction - Ascending or Descending sort + * + * RETURN: Status + * + * DESCRIPTION: Sort the objects that are in a package element list. + * + * NOTE: Assumes that all NULL elements have been removed from the package. + * + *****************************************************************************/ + +static acpi_status +acpi_ns_sort_list(union acpi_operand_object **elements, + u32 count, u32 index, u8 sort_direction) +{ + union acpi_operand_object *obj_desc1; + union acpi_operand_object *obj_desc2; + union acpi_operand_object *temp_obj; + u32 i; + u32 j; + + /* Simple bubble sort */ + + for (i = 1; i < count; i++) { + for (j = (count - 1); j >= i; j--) { + obj_desc1 = elements[j - 1]->package.elements[index]; + obj_desc2 = elements[j]->package.elements[index]; + + if (((sort_direction == ACPI_SORT_ASCENDING) && + (obj_desc1->integer.value > + obj_desc2->integer.value)) + || ((sort_direction == ACPI_SORT_DESCENDING) + && (obj_desc1->integer.value < + obj_desc2->integer.value))) { + temp_obj = elements[j - 1]; + elements[j - 1] = elements[j]; + elements[j] = temp_obj; + } + } + } + + return (AE_OK); +} diff --git a/drivers/acpi/acpica/nswalk.c b/drivers/acpi/acpica/nswalk.c index 35539df5c75..d7e6b52b448 100644 --- a/drivers/acpi/acpica/nswalk.c +++ b/drivers/acpi/acpica/nswalk.c @@ -165,24 +165,27 @@ struct acpi_namespace_node *acpi_ns_get_next_node_typed(acpi_object_type type, * max_depth - Depth to which search is to reach * Flags - Whether to unlock the NS before invoking * the callback routine - * user_function - Called when an object of "Type" is found - * Context - Passed to user function - * return_value - from the user_function if terminated early. - * Otherwise, returns NULL. + * pre_order_visit - Called during tree pre-order visit + * when an object of "Type" is found + * post_order_visit - Called during tree post-order visit + * when an object of "Type" is found + * Context - Passed to user function(s) above + * return_value - from the user_function if terminated + * early. Otherwise, returns NULL. * RETURNS: Status * * DESCRIPTION: Performs a modified depth-first walk of the namespace tree, * starting (and ending) at the node specified by start_handle. - * The user_function is called whenever a node that matches - * the type parameter is found. If the user function returns + * The callback function is called whenever a node that matches + * the type parameter is found. If the callback function returns * a non-zero value, the search is terminated immediately and * this value is returned to the caller. * * The point of this procedure is to provide a generic namespace * walk routine that can be called from multiple places to - * provide multiple services; the User Function can be tailored - * to each task, whether it is a print function, a compare - * function, etc. + * provide multiple services; the callback function(s) can be + * tailored to each task, whether it is a print function, + * a compare function, etc. * ******************************************************************************/ @@ -191,7 +194,8 @@ acpi_ns_walk_namespace(acpi_object_type type, acpi_handle start_node, u32 max_depth, u32 flags, - acpi_walk_callback user_function, + acpi_walk_callback pre_order_visit, + acpi_walk_callback post_order_visit, void *context, void **return_value) { acpi_status status; @@ -200,6 +204,7 @@ acpi_ns_walk_namespace(acpi_object_type type, struct acpi_namespace_node *parent_node; acpi_object_type child_type; u32 level; + u8 node_previously_visited = FALSE; ACPI_FUNCTION_TRACE(ns_walk_namespace); @@ -212,7 +217,7 @@ acpi_ns_walk_namespace(acpi_object_type type, /* Null child means "get first node" */ parent_node = start_node; - child_node = NULL; + child_node = acpi_ns_get_next_node(parent_node, NULL); child_type = ACPI_TYPE_ANY; level = 1; @@ -221,102 +226,129 @@ acpi_ns_walk_namespace(acpi_object_type type, * started. When Level is zero, the loop is done because we have * bubbled up to (and passed) the original parent handle (start_entry) */ - while (level > 0) { + while (level > 0 && child_node) { + status = AE_OK; - /* Get the next node in this scope. Null if not found */ + /* Found next child, get the type if we are not searching for ANY */ - status = AE_OK; - child_node = acpi_ns_get_next_node(parent_node, child_node); - if (child_node) { + if (type != ACPI_TYPE_ANY) { + child_type = child_node->type; + } - /* Found next child, get the type if we are not searching for ANY */ + /* + * Ignore all temporary namespace nodes (created during control + * method execution) unless told otherwise. These temporary nodes + * can cause a race condition because they can be deleted during + * the execution of the user function (if the namespace is + * unlocked before invocation of the user function.) Only the + * debugger namespace dump will examine the temporary nodes. + */ + if ((child_node->flags & ANOBJ_TEMPORARY) && + !(flags & ACPI_NS_WALK_TEMP_NODES)) { + status = AE_CTRL_DEPTH; + } - if (type != ACPI_TYPE_ANY) { - child_type = child_node->type; - } + /* Type must match requested type */ + else if (child_type == type) { /* - * Ignore all temporary namespace nodes (created during control - * method execution) unless told otherwise. These temporary nodes - * can cause a race condition because they can be deleted during - * the execution of the user function (if the namespace is - * unlocked before invocation of the user function.) Only the - * debugger namespace dump will examine the temporary nodes. + * Found a matching node, invoke the user callback function. + * Unlock the namespace if flag is set. */ - if ((child_node->flags & ANOBJ_TEMPORARY) && - !(flags & ACPI_NS_WALK_TEMP_NODES)) { - status = AE_CTRL_DEPTH; + if (flags & ACPI_NS_WALK_UNLOCK) { + mutex_status = + acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(mutex_status)) { + return_ACPI_STATUS(mutex_status); + } } - /* Type must match requested type */ - - else if (child_type == type) { - /* - * Found a matching node, invoke the user callback function. - * Unlock the namespace if flag is set. - */ - if (flags & ACPI_NS_WALK_UNLOCK) { - mutex_status = - acpi_ut_release_mutex - (ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(mutex_status)) { - return_ACPI_STATUS - (mutex_status); - } + /* + * Invoke the user function, either pre-order or post-order + * or both. + */ + if (!node_previously_visited) { + if (pre_order_visit) { + status = + pre_order_visit(child_node, level, + context, + return_value); } + } else { + if (post_order_visit) { + status = + post_order_visit(child_node, level, + context, + return_value); + } + } - status = - user_function(child_node, level, context, - return_value); - - if (flags & ACPI_NS_WALK_UNLOCK) { - mutex_status = - acpi_ut_acquire_mutex - (ACPI_MTX_NAMESPACE); - if (ACPI_FAILURE(mutex_status)) { - return_ACPI_STATUS - (mutex_status); - } + if (flags & ACPI_NS_WALK_UNLOCK) { + mutex_status = + acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(mutex_status)) { + return_ACPI_STATUS(mutex_status); } + } - switch (status) { - case AE_OK: - case AE_CTRL_DEPTH: + switch (status) { + case AE_OK: + case AE_CTRL_DEPTH: - /* Just keep going */ - break; + /* Just keep going */ + break; - case AE_CTRL_TERMINATE: + case AE_CTRL_TERMINATE: - /* Exit now, with OK status */ + /* Exit now, with OK status */ - return_ACPI_STATUS(AE_OK); + return_ACPI_STATUS(AE_OK); - default: + default: - /* All others are valid exceptions */ + /* All others are valid exceptions */ - return_ACPI_STATUS(status); - } + return_ACPI_STATUS(status); + } + } + + /* + * Depth first search: Attempt to go down another level in the + * namespace if we are allowed to. Don't go any further if we have + * reached the caller specified maximum depth or if the user + * function has specified that the maximum depth has been reached. + */ + if (!node_previously_visited && + (level < max_depth) && (status != AE_CTRL_DEPTH)) { + if (child_node->child) { + + /* There is at least one child of this node, visit it */ + + level++; + parent_node = child_node; + child_node = + acpi_ns_get_next_node(parent_node, NULL); + continue; } + } - /* - * Depth first search: Attempt to go down another level in the - * namespace if we are allowed to. Don't go any further if we have - * reached the caller specified maximum depth or if the user - * function has specified that the maximum depth has been reached. - */ - if ((level < max_depth) && (status != AE_CTRL_DEPTH)) { - if (child_node->child) { + /* No more children, re-visit this node */ - /* There is at least one child of this node, visit it */ + if (!node_previously_visited) { + node_previously_visited = TRUE; + continue; + } - level++; - parent_node = child_node; - child_node = NULL; - } - } - } else { + /* No more children, visit peers */ + + child_node = acpi_ns_get_next_node(parent_node, child_node); + if (child_node) { + node_previously_visited = FALSE; + } + + /* No peers, re-visit parent */ + + else { /* * No more children of this node (acpi_ns_get_next_node failed), go * back upwards in the namespace tree to the node's parent. @@ -324,6 +356,8 @@ acpi_ns_walk_namespace(acpi_object_type type, level--; child_node = parent_node; parent_node = acpi_ns_get_parent_node(parent_node); + + node_previously_visited = TRUE; } } diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c index 4929dbdbc8f..f2bd1da7700 100644 --- a/drivers/acpi/acpica/nsxfeval.c +++ b/drivers/acpi/acpica/nsxfeval.c @@ -433,8 +433,11 @@ static void acpi_ns_resolve_references(struct acpi_evaluate_info *info) * PARAMETERS: Type - acpi_object_type to search for * start_object - Handle in namespace where search begins * max_depth - Depth to which search is to reach - * user_function - Called when an object of "Type" is found - * Context - Passed to user function + * pre_order_visit - Called during tree pre-order visit + * when an object of "Type" is found + * post_order_visit - Called during tree post-order visit + * when an object of "Type" is found + * Context - Passed to user function(s) above * return_value - Location where return value of * user_function is put if terminated early * @@ -443,16 +446,16 @@ static void acpi_ns_resolve_references(struct acpi_evaluate_info *info) * * DESCRIPTION: Performs a modified depth-first walk of the namespace tree, * starting (and ending) at the object specified by start_handle. - * The user_function is called whenever an object that matches - * the type parameter is found. If the user function returns + * The callback function is called whenever an object that matches + * the type parameter is found. If the callback function returns * a non-zero value, the search is terminated immediately and this * value is returned to the caller. * * The point of this procedure is to provide a generic namespace * walk routine that can be called from multiple places to - * provide multiple services; the User Function can be tailored - * to each task, whether it is a print function, a compare - * function, etc. + * provide multiple services; the callback function(s) can be + * tailored to each task, whether it is a print function, + * a compare function, etc. * ******************************************************************************/ @@ -460,7 +463,8 @@ acpi_status acpi_walk_namespace(acpi_object_type type, acpi_handle start_object, u32 max_depth, - acpi_walk_callback user_function, + acpi_walk_callback pre_order_visit, + acpi_walk_callback post_order_visit, void *context, void **return_value) { acpi_status status; @@ -469,7 +473,8 @@ acpi_walk_namespace(acpi_object_type type, /* Parameter validation */ - if ((type > ACPI_TYPE_LOCAL_MAX) || (!max_depth) || (!user_function)) { + if ((type > ACPI_TYPE_LOCAL_MAX) || + (!max_depth) || (!pre_order_visit && !post_order_visit)) { return_ACPI_STATUS(AE_BAD_PARAMETER); } @@ -501,8 +506,9 @@ acpi_walk_namespace(acpi_object_type type, } status = acpi_ns_walk_namespace(type, start_object, max_depth, - ACPI_NS_WALK_UNLOCK, user_function, - context, return_value); + ACPI_NS_WALK_UNLOCK, pre_order_visit, + post_order_visit, context, + return_value); (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); @@ -681,8 +687,8 @@ acpi_get_devices(const char *HID, status = acpi_ns_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, ACPI_NS_WALK_UNLOCK, - acpi_ns_get_device_callback, &info, - return_value); + acpi_ns_get_device_callback, NULL, + &info, return_value); (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); return_ACPI_STATUS(status); diff --git a/drivers/acpi/acpica/psloop.c b/drivers/acpi/acpica/psloop.c index cd7995b3aed..0988e4a8901 100644 --- a/drivers/acpi/acpica/psloop.c +++ b/drivers/acpi/acpica/psloop.c @@ -87,7 +87,8 @@ acpi_ps_complete_final_op(struct acpi_walk_state *walk_state, union acpi_parse_object *op, acpi_status status); static void -acpi_ps_link_module_code(u8 *aml_start, u32 aml_length, acpi_owner_id owner_id); +acpi_ps_link_module_code(union acpi_parse_object *parent_op, + u8 *aml_start, u32 aml_length, acpi_owner_id owner_id); /******************************************************************************* * @@ -479,11 +480,14 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state, */ if (walk_state->pass_number == ACPI_IMODE_LOAD_PASS1) { - acpi_ps_link_module_code(aml_op_start, - walk_state-> + acpi_ps_link_module_code(op->common. + parent, + aml_op_start, + (u32) + (walk_state-> parser_state. pkg_end - - aml_op_start, + aml_op_start), walk_state-> owner_id); } @@ -598,7 +602,8 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state, * * FUNCTION: acpi_ps_link_module_code * - * PARAMETERS: aml_start - Pointer to the AML + * PARAMETERS: parent_op - Parent parser op + * aml_start - Pointer to the AML * aml_length - Length of executable AML * owner_id - owner_id of module level code * @@ -611,11 +616,13 @@ acpi_ps_get_arguments(struct acpi_walk_state *walk_state, ******************************************************************************/ static void -acpi_ps_link_module_code(u8 *aml_start, u32 aml_length, acpi_owner_id owner_id) +acpi_ps_link_module_code(union acpi_parse_object *parent_op, + u8 *aml_start, u32 aml_length, acpi_owner_id owner_id) { union acpi_operand_object *prev; union acpi_operand_object *next; union acpi_operand_object *method_obj; + struct acpi_namespace_node *parent_node; /* Get the tail of the list */ @@ -639,11 +646,24 @@ acpi_ps_link_module_code(u8 *aml_start, u32 aml_length, acpi_owner_id owner_id) return; } + if (parent_op->common.node) { + parent_node = parent_op->common.node; + } else { + parent_node = acpi_gbl_root_node; + } + method_obj->method.aml_start = aml_start; method_obj->method.aml_length = aml_length; method_obj->method.owner_id = owner_id; method_obj->method.flags |= AOPOBJ_MODULE_LEVEL; + /* + * Save the parent node in next_object. This is cheating, but we + * don't want to expand the method object. + */ + method_obj->method.next_object = + ACPI_CAST_PTR(union acpi_operand_object, parent_node); + if (!prev) { acpi_gbl_module_code_list = method_obj; } else { diff --git a/drivers/acpi/acpica/psparse.c b/drivers/acpi/acpica/psparse.c index 70838e9b608..4df8f139026 100644 --- a/drivers/acpi/acpica/psparse.c +++ b/drivers/acpi/acpica/psparse.c @@ -610,17 +610,13 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state) implicit_return_obj) { previous_walk_state-> implicit_return_obj = - acpi_ut_create_internal_object - (ACPI_TYPE_INTEGER); + acpi_ut_create_integer_object + ((u64) 0); if (!previous_walk_state-> implicit_return_obj) { return_ACPI_STATUS (AE_NO_MEMORY); } - - previous_walk_state-> - implicit_return_obj-> - integer.value = 0; } /* Restart the calling control method */ diff --git a/drivers/acpi/acpica/psxface.c b/drivers/acpi/acpica/psxface.c index dd9731c29a7..12934ad6da8 100644 --- a/drivers/acpi/acpica/psxface.c +++ b/drivers/acpi/acpica/psxface.c @@ -306,14 +306,12 @@ acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info) */ if (acpi_gbl_enable_interpreter_slack) { walk_state->implicit_return_obj = - acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + acpi_ut_create_integer_object((u64) 0); if (!walk_state->implicit_return_obj) { status = AE_NO_MEMORY; acpi_ds_delete_walk_state(walk_state); goto cleanup; } - - walk_state->implicit_return_obj->integer.value = 0; } /* Parse the AML */ diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c index 61f6315fce9..6c6a5137b72 100644 --- a/drivers/acpi/acpica/utmisc.c +++ b/drivers/acpi/acpica/utmisc.c @@ -1161,3 +1161,45 @@ acpi_ut_predefined_warning(const char *module_name, ACPI_COMMON_MSG_SUFFIX; va_end(args); } + +/******************************************************************************* + * + * FUNCTION: acpi_ut_predefined_info + * + * 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: Info messages 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 + * messages for methods that are repeatedly evaluated. + * + ******************************************************************************/ + +void ACPI_INTERNAL_VAR_XFACE +acpi_ut_predefined_info(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 Info for %s: ", pathname); + + va_start(args, format); + acpi_os_vprintf(format, args); + ACPI_COMMON_MSG_SUFFIX; + va_end(args); +} diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c index 0207b625274..42e658b543f 100644 --- a/drivers/acpi/acpica/utobject.c +++ b/drivers/acpi/acpica/utobject.c @@ -190,6 +190,35 @@ union acpi_operand_object *acpi_ut_create_package_object(u32 count) /******************************************************************************* * + * FUNCTION: acpi_ut_create_integer_object + * + * PARAMETERS: initial_value - Initial value for the integer + * + * RETURN: Pointer to a new Integer object, null on failure + * + * DESCRIPTION: Create an initialized integer object + * + ******************************************************************************/ + +union acpi_operand_object *acpi_ut_create_integer_object(u64 initial_value) +{ + union acpi_operand_object *integer_desc; + + ACPI_FUNCTION_TRACE(ut_create_integer_object); + + /* Create and initialize a new integer object */ + + integer_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); + if (!integer_desc) { + return_PTR(NULL); + } + + integer_desc->integer.value = initial_value; + return_PTR(integer_desc); +} + +/******************************************************************************* + * * FUNCTION: acpi_ut_create_buffer_object * * PARAMETERS: buffer_size - Size of buffer to be created diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c index 642bb305cb6..5faf6c21257 100644 --- a/drivers/acpi/container.c +++ b/drivers/acpi/container.c @@ -258,7 +258,7 @@ static int __init acpi_container_init(void) acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, - container_walk_namespace_cb, &action, NULL); + container_walk_namespace_cb, NULL, &action, NULL); return (0); } @@ -271,7 +271,7 @@ static void __exit acpi_container_exit(void) acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, - container_walk_namespace_cb, &action, NULL); + container_walk_namespace_cb, NULL, &action, NULL); acpi_bus_unregister_driver(&acpi_container_driver); diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index 7338b6a3e04..30be3c148f7 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -1030,8 +1030,8 @@ static int dock_add(acpi_handle handle) /* Find dependent devices */ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, find_dock_devices, dock_station, - NULL); + ACPI_UINT32_MAX, find_dock_devices, NULL, + dock_station, NULL); /* add the dock station as a device dependent on itself */ dd = alloc_dock_dependent_device(handle); @@ -1127,11 +1127,11 @@ static int __init dock_init(void) /* look for a dock station */ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, find_dock, NULL, NULL); + ACPI_UINT32_MAX, find_dock, NULL, NULL, NULL); /* look for bay */ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, find_bay, NULL, NULL); + ACPI_UINT32_MAX, find_bay, NULL, NULL, NULL); if (!dock_station_count) { printk(KERN_INFO PREFIX "No dock devices found.\n"); return 0; diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index baef28c1e63..75b147f5c8f 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -820,7 +820,7 @@ static int acpi_ec_add(struct acpi_device *device) /* Find and register all query methods */ acpi_walk_namespace(ACPI_TYPE_METHOD, ec->handle, 1, - acpi_ec_register_query_methods, ec, NULL); + acpi_ec_register_query_methods, NULL, ec, NULL); if (!first_ec) first_ec = ec; diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index c6645f26224..4c8fcff662c 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -113,7 +113,7 @@ acpi_handle acpi_get_child(acpi_handle parent, acpi_integer address) if (!parent) return NULL; acpi_walk_namespace(ACPI_TYPE_DEVICE, parent, - 1, do_acpi_find_child, &find, NULL); + 1, do_acpi_find_child, NULL, &find, NULL); return find.handle; } diff --git a/drivers/acpi/hest.c b/drivers/acpi/hest.c new file mode 100644 index 00000000000..4bb18c980ac --- /dev/null +++ b/drivers/acpi/hest.c @@ -0,0 +1,135 @@ +#include <linux/acpi.h> +#include <linux/pci.h> + +#define PREFIX "ACPI: " + +static inline unsigned long parse_acpi_hest_ia_machine_check(struct acpi_hest_ia_machine_check *p) +{ + return sizeof(*p) + + (sizeof(struct acpi_hest_ia_error_bank) * p->num_hardware_banks); +} + +static inline unsigned long parse_acpi_hest_ia_corrected(struct acpi_hest_ia_corrected *p) +{ + return sizeof(*p) + + (sizeof(struct acpi_hest_ia_error_bank) * p->num_hardware_banks); +} + +static inline unsigned long parse_acpi_hest_ia_nmi(struct acpi_hest_ia_nmi *p) +{ + return sizeof(*p); +} + +static inline unsigned long parse_acpi_hest_generic(struct acpi_hest_generic *p) +{ + return sizeof(*p); +} + +static inline unsigned int hest_match_pci(struct acpi_hest_aer_common *p, struct pci_dev *pci) +{ + return (0 == pci_domain_nr(pci->bus) && + p->bus == pci->bus->number && + p->device == PCI_SLOT(pci->devfn) && + p->function == PCI_FUNC(pci->devfn)); +} + +static unsigned long parse_acpi_hest_aer(void *hdr, int type, struct pci_dev *pci, int *firmware_first) +{ + struct acpi_hest_aer_common *p = hdr + sizeof(struct acpi_hest_header); + unsigned long rc=0; + u8 pcie_type = 0; + u8 bridge = 0; + switch (type) { + case ACPI_HEST_TYPE_AER_ROOT_PORT: + rc = sizeof(struct acpi_hest_aer_root); + pcie_type = PCI_EXP_TYPE_ROOT_PORT; + break; + case ACPI_HEST_TYPE_AER_ENDPOINT: + rc = sizeof(struct acpi_hest_aer); + pcie_type = PCI_EXP_TYPE_ENDPOINT; + break; + case ACPI_HEST_TYPE_AER_BRIDGE: + rc = sizeof(struct acpi_hest_aer_bridge); + if ((pci->class >> 16) == PCI_BASE_CLASS_BRIDGE) + bridge = 1; + break; + } + + if (p->flags & ACPI_HEST_GLOBAL) { + if ((pci->is_pcie && (pci->pcie_type == pcie_type)) || bridge) + *firmware_first = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST); + } + else + if (hest_match_pci(p, pci)) + *firmware_first = !!(p->flags & ACPI_HEST_FIRMWARE_FIRST); + return rc; +} + +static int acpi_hest_firmware_first(struct acpi_table_header *stdheader, struct pci_dev *pci) +{ + struct acpi_table_hest *hest = (struct acpi_table_hest *)stdheader; + void *p = (void *)hest + sizeof(*hest); /* defined by the ACPI 4.0 spec */ + struct acpi_hest_header *hdr = p; + + int i; + int firmware_first = 0; + static unsigned char printed_unused = 0; + static unsigned char printed_reserved = 0; + + for (i=0, hdr=p; p < (((void *)hest) + hest->header.length) && i < hest->error_source_count; i++) { + switch (hdr->type) { + case ACPI_HEST_TYPE_IA32_CHECK: + p += parse_acpi_hest_ia_machine_check(p); + break; + case ACPI_HEST_TYPE_IA32_CORRECTED_CHECK: + p += parse_acpi_hest_ia_corrected(p); + break; + case ACPI_HEST_TYPE_IA32_NMI: + p += parse_acpi_hest_ia_nmi(p); + break; + /* These three should never appear */ + case ACPI_HEST_TYPE_NOT_USED3: + case ACPI_HEST_TYPE_NOT_USED4: + case ACPI_HEST_TYPE_NOT_USED5: + if (!printed_unused) { + printk(KERN_DEBUG PREFIX + "HEST Error Source list contains an obsolete type (%d).\n", hdr->type); + printed_unused = 1; + } + break; + case ACPI_HEST_TYPE_AER_ROOT_PORT: + case ACPI_HEST_TYPE_AER_ENDPOINT: + case ACPI_HEST_TYPE_AER_BRIDGE: + p += parse_acpi_hest_aer(p, hdr->type, pci, &firmware_first); + break; + case ACPI_HEST_TYPE_GENERIC_ERROR: + p += parse_acpi_hest_generic(p); + break; + /* These should never appear either */ + case ACPI_HEST_TYPE_RESERVED: + default: + if (!printed_reserved) { + printk(KERN_DEBUG PREFIX + "HEST Error Source list contains a reserved type (%d).\n", hdr->type); + printed_reserved = 1; + } + break; + } + } + return firmware_first; +} + +int acpi_hest_firmware_first_pci(struct pci_dev *pci) +{ + acpi_status status = AE_NOT_FOUND; + struct acpi_table_header *hest = NULL; + status = acpi_get_table(ACPI_SIG_HEST, 1, &hest); + + if (ACPI_SUCCESS(status)) { + if (acpi_hest_firmware_first(hest, pci)) { + return 1; + } + } + return 0; +} +EXPORT_SYMBOL_GPL(acpi_hest_firmware_first_pci); diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c index 45da2bae36c..11f21974320 100644 --- a/drivers/acpi/pci_slot.c +++ b/drivers/acpi/pci_slot.c @@ -219,12 +219,12 @@ walk_p2p_bridge(acpi_handle handle, u32 lvl, void *context, void **rv) dbg("p2p bridge walk, pci_bus = %x\n", dev->subordinate->number); status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, - user_function, &child_context, NULL); + user_function, NULL, &child_context, NULL); if (ACPI_FAILURE(status)) goto out; status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, - walk_p2p_bridge, &child_context, NULL); + walk_p2p_bridge, NULL, &child_context, NULL); out: pci_dev_put(dev); return AE_OK; @@ -277,12 +277,12 @@ walk_root_bridge(acpi_handle handle, acpi_walk_callback user_function) dbg("root bridge walk, pci_bus = %x\n", pci_bus->number); status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, - user_function, &context, NULL); + user_function, NULL, &context, NULL); if (ACPI_FAILURE(status)) return status; status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1, - walk_p2p_bridge, &context, NULL); + walk_p2p_bridge, NULL, &context, NULL); if (ACPI_FAILURE(status)) err("%s: walk_p2p_bridge failure - %d\n", __func__, status); diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index ec742a4e563..cb4283f5a79 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -1102,7 +1102,7 @@ void acpi_processor_install_hotplug_notify(void) acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, - processor_walk_namespace_cb, &action, NULL); + processor_walk_namespace_cb, NULL, &action, NULL); #endif register_hotcpu_notifier(&acpi_cpu_notifier); } @@ -1115,7 +1115,7 @@ void acpi_processor_uninstall_hotplug_notify(void) acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, - processor_walk_namespace_cb, &action, NULL); + processor_walk_namespace_cb, NULL, &action, NULL); #endif unregister_hotcpu_notifier(&acpi_cpu_notifier); } diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index 8ba0ed0b9dd..01e366d2b6f 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -167,6 +167,19 @@ int acpi_processor_ppc_has_changed(struct acpi_processor *pr) return cpufreq_update_policy(pr->id); } +int acpi_processor_get_bios_limit(int cpu, unsigned int *limit) +{ + struct acpi_processor *pr; + + pr = per_cpu(processors, cpu); + if (!pr || !pr->performance || !pr->performance->state_count) + return -ENODEV; + *limit = pr->performance->states[pr->performance_platform_limit]. + core_frequency * 1000; + return 0; +} +EXPORT_SYMBOL(acpi_processor_get_bios_limit); + void acpi_processor_ppc_init(void) { if (!cpufreq_register_notifier diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 14a7481c97d..ff9f6226085 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1332,7 +1332,7 @@ static int acpi_bus_scan(acpi_handle handle, struct acpi_bus_ops *ops, status = acpi_bus_check_add(handle, 0, ops, &device); if (ACPI_SUCCESS(status)) acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, - acpi_bus_check_add, ops, &device); + acpi_bus_check_add, NULL, ops, &device); if (child) *child = device; diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 575593a8b4e..fc2f26b9b40 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -7,7 +7,7 @@ * video_detect.c: * Provides acpi_is_video_device() for early scanning of ACPI devices in scan.c * There a Linux specific (Spec does not provide a HID for video devices) is - * assinged + * assigned * * After PCI devices are glued with ACPI devices * acpi_get_pci_dev() can be called to identify ACPI graphics @@ -83,16 +83,16 @@ long acpi_is_video_device(struct acpi_device *device) if (!device) return 0; - /* Does this device able to support video switching ? */ + /* Is this device able to support video switching ? */ if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOD", &h_dummy)) || ACPI_SUCCESS(acpi_get_handle(device->handle, "_DOS", &h_dummy))) video_caps |= ACPI_VIDEO_OUTPUT_SWITCHING; - /* Does this device able to retrieve a video ROM ? */ + /* Is this device able to retrieve a video ROM ? */ if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_ROM", &h_dummy))) video_caps |= ACPI_VIDEO_ROM_AVAILABLE; - /* Does this device able to configure which video head to be POSTed ? */ + /* Is this device able to configure which video head to be POSTed ? */ if (ACPI_SUCCESS(acpi_get_handle(device->handle, "_VPO", &h_dummy)) && ACPI_SUCCESS(acpi_get_handle(device->handle, "_GPD", &h_dummy)) && ACPI_SUCCESS(acpi_get_handle(device->handle, "_SPD", &h_dummy))) @@ -101,7 +101,7 @@ long acpi_is_video_device(struct acpi_device *device) /* Only check for backlight functionality if one of the above hit. */ if (video_caps) acpi_walk_namespace(ACPI_TYPE_DEVICE, device->handle, - ACPI_UINT32_MAX, acpi_backlight_cap_match, + ACPI_UINT32_MAX, acpi_backlight_cap_match, NULL, &video_caps, NULL); return video_caps; @@ -137,7 +137,7 @@ find_video(acpi_handle handle, u32 lvl, void *context, void **rv) * * if NULL is passed as argument all ACPI devices are enumerated and * all graphics capabilities of physically present devices are - * summerized and returned. This is cached and done only once. + * summarized and returned. This is cached and done only once. */ long acpi_video_get_capabilities(acpi_handle graphics_handle) { @@ -151,7 +151,7 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle) if (!graphics_handle) { /* Only do the global walk through all graphics devices once */ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, find_video, + ACPI_UINT32_MAX, find_video, NULL, &caps, NULL); /* There might be boot param flags set already... */ acpi_video_support |= caps; @@ -173,7 +173,7 @@ long acpi_video_get_capabilities(acpi_handle graphics_handle) return 0; } acpi_walk_namespace(ACPI_TYPE_DEVICE, graphics_handle, - ACPI_UINT32_MAX, find_video, + ACPI_UINT32_MAX, find_video, NULL, &caps, NULL); } ACPI_DEBUG_PRINT((ACPI_DB_INFO, "We have 0x%lX video support %s %s\n", |