diff options
Diffstat (limited to 'drivers/acpi/executer')
23 files changed, 442 insertions, 307 deletions
diff --git a/drivers/acpi/executer/exconfig.c b/drivers/acpi/executer/exconfig.c index a29782fe3ecf..823352435e08 100644 --- a/drivers/acpi/executer/exconfig.c +++ b/drivers/acpi/executer/exconfig.c @@ -82,7 +82,7 @@ acpi_ex_add_table(struct acpi_table_header *table, struct acpi_table_desc table_info; union acpi_operand_object *obj_desc; - ACPI_FUNCTION_TRACE("ex_add_table"); + ACPI_FUNCTION_TRACE(ex_add_table); /* Create an object to be the table handle */ @@ -100,7 +100,7 @@ acpi_ex_add_table(struct acpi_table_header *table, ACPI_MEMSET(&table_info, 0, sizeof(struct acpi_table_desc)); - table_info.type = ACPI_TABLE_SSDT; + table_info.type = ACPI_TABLE_ID_SSDT; table_info.pointer = table; table_info.length = (acpi_size) table->length; table_info.allocation = ACPI_MEM_ALLOCATED; @@ -110,6 +110,7 @@ acpi_ex_add_table(struct acpi_table_header *table, if (ACPI_FAILURE(status)) { if (status == AE_ALREADY_EXISTS) { + /* Table already exists, just return the handle */ return_ACPI_STATUS(AE_OK); @@ -121,6 +122,7 @@ acpi_ex_add_table(struct acpi_table_header *table, status = acpi_ns_load_table(table_info.installed_desc, parent_node); if (ACPI_FAILURE(status)) { + /* Uninstall table on error */ (void)acpi_tb_uninstall_table(table_info.installed_desc); @@ -160,7 +162,7 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state, struct acpi_namespace_node *parameter_node = NULL; union acpi_operand_object *ddb_handle; - ACPI_FUNCTION_TRACE("ex_load_table_op"); + ACPI_FUNCTION_TRACE(ex_load_table_op); #if 0 /* @@ -169,6 +171,7 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state, */ status = acpi_tb_match_signature(operand[0]->string.pointer, NULL); if (status == AE_OK) { + /* Signature matched -- don't allow override */ return_ACPI_STATUS(AE_ALREADY_EXISTS); @@ -211,9 +214,8 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state, * location within the namespace where the table will be loaded. */ status = - acpi_ns_get_node_by_path(operand[3]->string.pointer, - start_node, ACPI_NS_SEARCH_PARENT, - &parent_node); + acpi_ns_get_node(start_node, operand[3]->string.pointer, + ACPI_NS_SEARCH_PARENT, &parent_node); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -234,9 +236,8 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state, /* Find the node referenced by the parameter_path_string */ status = - acpi_ns_get_node_by_path(operand[4]->string.pointer, - start_node, ACPI_NS_SEARCH_PARENT, - ¶meter_node); + acpi_ns_get_node(start_node, operand[4]->string.pointer, + ACPI_NS_SEARCH_PARENT, ¶meter_node); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -252,6 +253,7 @@ acpi_ex_load_table_op(struct acpi_walk_state *walk_state, /* Parameter Data (optional) */ if (parameter_node) { + /* Store the parameter data into the optional parameter object */ status = acpi_ex_store(operand[5], @@ -294,9 +296,10 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, struct acpi_table_header *table_ptr = NULL; acpi_physical_address address; struct acpi_table_header table_header; + acpi_integer temp; u32 i; - ACPI_FUNCTION_TRACE("ex_load_op"); + ACPI_FUNCTION_TRACE(ex_load_op); /* Object can be either an op_region or a Field */ @@ -322,7 +325,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, address = obj_desc->region.address; - /* Get the table length from the table header */ + /* Get part of the table header to get the table length */ table_header.length = 0; for (i = 0; i < 8; i++) { @@ -330,11 +333,14 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, acpi_ev_address_space_dispatch(obj_desc, ACPI_READ, (acpi_physical_address) (i + address), 8, - ((u8 *) & - table_header) + i); + &temp); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } + + /* Get the one valid byte of the returned 64-bit value */ + + ACPI_CAST_PTR(u8, &table_header)[i] = (u8) temp; } /* Sanity check the table length */ @@ -345,7 +351,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, /* Allocate a buffer for the entire table */ - table_ptr = ACPI_MEM_ALLOCATE(table_header.length); + table_ptr = ACPI_ALLOCATE(table_header.length); if (!table_ptr) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -357,11 +363,14 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, acpi_ev_address_space_dispatch(obj_desc, ACPI_READ, (acpi_physical_address) (i + address), 8, - ((u8 *) table_ptr + - i)); + &temp); if (ACPI_FAILURE(status)) { goto cleanup; } + + /* Get the one valid byte of the returned 64-bit value */ + + ACPI_CAST_PTR(u8, table_ptr)[i] = (u8) temp; } break; @@ -407,12 +416,8 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, /* The table must be either an SSDT or a PSDT */ - if ((!ACPI_STRNCMP(table_ptr->signature, - acpi_gbl_table_data[ACPI_TABLE_PSDT].signature, - acpi_gbl_table_data[ACPI_TABLE_PSDT].sig_length)) && - (!ACPI_STRNCMP(table_ptr->signature, - acpi_gbl_table_data[ACPI_TABLE_SSDT].signature, - acpi_gbl_table_data[ACPI_TABLE_SSDT].sig_length))) { + if ((!ACPI_COMPARE_NAME(table_ptr->signature, PSDT_SIG)) && + (!ACPI_COMPARE_NAME(table_ptr->signature, SSDT_SIG))) { ACPI_ERROR((AE_INFO, "Table has invalid signature [%4.4s], must be SSDT or PSDT", table_ptr->signature)); @@ -424,6 +429,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, status = acpi_ex_add_table(table_ptr, acpi_gbl_root_node, &ddb_handle); if (ACPI_FAILURE(status)) { + /* On error, table_ptr was deallocated above */ return_ACPI_STATUS(status); @@ -442,7 +448,7 @@ acpi_ex_load_op(union acpi_operand_object *obj_desc, cleanup: if (ACPI_FAILURE(status)) { - ACPI_MEM_FREE(table_ptr); + ACPI_FREE(table_ptr); } return_ACPI_STATUS(status); } @@ -465,7 +471,7 @@ acpi_status acpi_ex_unload_table(union acpi_operand_object *ddb_handle) union acpi_operand_object *table_desc = ddb_handle; struct acpi_table_desc *table_info; - ACPI_FUNCTION_TRACE("ex_unload_table"); + ACPI_FUNCTION_TRACE(ex_unload_table); /* * Validate the handle diff --git a/drivers/acpi/executer/exconvrt.c b/drivers/acpi/executer/exconvrt.c index e6d52e12d77a..b732e399b1ef 100644 --- a/drivers/acpi/executer/exconvrt.c +++ b/drivers/acpi/executer/exconvrt.c @@ -79,7 +79,7 @@ acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc, u32 count; acpi_status status; - ACPI_FUNCTION_TRACE_PTR("ex_convert_to_integer", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ex_convert_to_integer, obj_desc); switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { case ACPI_TYPE_INTEGER: @@ -199,7 +199,7 @@ acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc, union acpi_operand_object *return_desc; u8 *new_buf; - ACPI_FUNCTION_TRACE_PTR("ex_convert_to_buffer", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ex_convert_to_buffer, obj_desc); switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { case ACPI_TYPE_BUFFER: @@ -319,6 +319,7 @@ acpi_ex_convert_to_ascii(acpi_integer integer, remainder = 0; for (i = decimal_length; i > 0; i--) { + /* Divide by nth factor of 10 */ digit = integer; @@ -346,6 +347,7 @@ acpi_ex_convert_to_ascii(acpi_integer integer, hex_length = (acpi_native_uint) ACPI_MUL_2(data_width); for (i = 0, j = (hex_length - 1); i < hex_length; i++, j--) { + /* Get one hex digit, most significant digits first */ string[k] = @@ -400,7 +402,7 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc, u16 base = 16; u8 separator = ','; - ACPI_FUNCTION_TRACE_PTR("ex_convert_to_string", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ex_convert_to_string, obj_desc); switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { case ACPI_TYPE_STRING: @@ -567,7 +569,7 @@ acpi_ex_convert_to_target_type(acpi_object_type destination_type, { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ex_convert_to_target_type"); + ACPI_FUNCTION_TRACE(ex_convert_to_target_type); /* Default behavior */ @@ -657,7 +659,7 @@ acpi_ex_convert_to_target_type(acpi_object_type destination_type, default: ACPI_ERROR((AE_INFO, - "Unknown Target type ID 0x%X aml_opcode %X dest_type %s", + "Unknown Target type ID 0x%X AmlOpcode %X DestType %s", GET_CURRENT_ARG_TYPE(walk_state->op_info-> runtime_args), walk_state->opcode, diff --git a/drivers/acpi/executer/excreate.c b/drivers/acpi/executer/excreate.c index 680575402835..106dc7219df7 100644 --- a/drivers/acpi/executer/excreate.c +++ b/drivers/acpi/executer/excreate.c @@ -69,7 +69,7 @@ acpi_status acpi_ex_create_alias(struct acpi_walk_state *walk_state) struct acpi_namespace_node *alias_node; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ex_create_alias"); + ACPI_FUNCTION_TRACE(ex_create_alias); /* Get the source/alias operands (both namespace nodes) */ @@ -164,7 +164,7 @@ acpi_status acpi_ex_create_event(struct acpi_walk_state *walk_state) acpi_status status; union acpi_operand_object *obj_desc; - ACPI_FUNCTION_TRACE("ex_create_event"); + ACPI_FUNCTION_TRACE(ex_create_event); obj_desc = acpi_ut_create_internal_object(ACPI_TYPE_EVENT); if (!obj_desc) { @@ -216,7 +216,7 @@ acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state) acpi_status status = AE_OK; union acpi_operand_object *obj_desc; - ACPI_FUNCTION_TRACE_PTR("ex_create_mutex", ACPI_WALK_OPERANDS); + ACPI_FUNCTION_TRACE_PTR(ex_create_mutex, ACPI_WALK_OPERANDS); /* Create the new mutex object */ @@ -243,8 +243,9 @@ acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state) obj_desc->mutex.node = (struct acpi_namespace_node *)walk_state->operands[0]; - status = acpi_ns_attach_object(obj_desc->mutex.node, - obj_desc, ACPI_TYPE_MUTEX); + status = + acpi_ns_attach_object(obj_desc->mutex.node, obj_desc, + ACPI_TYPE_MUTEX); cleanup: /* @@ -280,7 +281,7 @@ acpi_ex_create_region(u8 * aml_start, struct acpi_namespace_node *node; union acpi_operand_object *region_obj2; - ACPI_FUNCTION_TRACE("ex_create_region"); + ACPI_FUNCTION_TRACE(ex_create_region); /* Get the Namespace Node */ @@ -300,7 +301,7 @@ acpi_ex_create_region(u8 * aml_start, */ if ((region_space >= ACPI_NUM_PREDEFINED_REGIONS) && (region_space < ACPI_USER_REGION_BEGIN)) { - ACPI_ERROR((AE_INFO, "Invalid address_space type %X", + ACPI_ERROR((AE_INFO, "Invalid AddressSpace type %X", region_space)); return_ACPI_STATUS(AE_AML_INVALID_SPACE_ID); } @@ -364,7 +365,7 @@ acpi_status acpi_ex_create_table_region(struct acpi_walk_state *walk_state) struct acpi_table_header *table; union acpi_operand_object *region_obj2; - ACPI_FUNCTION_TRACE("ex_create_table_region"); + ACPI_FUNCTION_TRACE(ex_create_table_region); /* Get the Node from the object stack */ @@ -452,7 +453,7 @@ acpi_status acpi_ex_create_processor(struct acpi_walk_state *walk_state) union acpi_operand_object *obj_desc; acpi_status status; - ACPI_FUNCTION_TRACE_PTR("ex_create_processor", walk_state); + ACPI_FUNCTION_TRACE_PTR(ex_create_processor, walk_state); /* Create the processor object */ @@ -464,9 +465,9 @@ acpi_status acpi_ex_create_processor(struct acpi_walk_state *walk_state) /* Initialize the processor object from the operands */ obj_desc->processor.proc_id = (u8) operand[1]->integer.value; + obj_desc->processor.length = (u8) operand[3]->integer.value; obj_desc->processor.address = (acpi_io_address) operand[2]->integer.value; - obj_desc->processor.length = (u8) operand[3]->integer.value; /* Install the processor object in the parent Node */ @@ -499,7 +500,7 @@ acpi_status acpi_ex_create_power_resource(struct acpi_walk_state *walk_state) acpi_status status; union acpi_operand_object *obj_desc; - ACPI_FUNCTION_TRACE_PTR("ex_create_power_resource", walk_state); + ACPI_FUNCTION_TRACE_PTR(ex_create_power_resource, walk_state); /* Create the power resource object */ @@ -549,7 +550,7 @@ acpi_ex_create_method(u8 * aml_start, acpi_status status; u8 method_flags; - ACPI_FUNCTION_TRACE_PTR("ex_create_method", walk_state); + ACPI_FUNCTION_TRACE_PTR(ex_create_method, walk_state); /* Create a new method object */ diff --git a/drivers/acpi/executer/exdump.c b/drivers/acpi/executer/exdump.c index a7cca8d4f855..7b9718e976bf 100644 --- a/drivers/acpi/executer/exdump.c +++ b/drivers/acpi/executer/exdump.c @@ -61,6 +61,10 @@ static void acpi_ex_out_pointer(char *title, void *value); static void acpi_ex_out_address(char *title, acpi_physical_address value); +static void +acpi_ex_dump_object(union acpi_operand_object *obj_desc, + struct acpi_exdump_info *info); + static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc); static void @@ -119,7 +123,7 @@ static struct acpi_exdump_info acpi_ex_dump_event[2] = { static struct acpi_exdump_info acpi_ex_dump_method[8] = { {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_method), NULL}, - {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.param_count), "param_count"}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.param_count), "ParamCount"}, {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.concurrency), "Concurrency"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.semaphore), "Semaphore"}, {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.owner_id), "Owner Id"}, @@ -263,12 +267,10 @@ static struct acpi_exdump_info acpi_ex_dump_field_common[7] = { {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(common_field.node), "Parent Node"} }; -static struct acpi_exdump_info acpi_ex_dump_node[6] = { +static struct acpi_exdump_info acpi_ex_dump_node[5] = { {ACPI_EXD_INIT, ACPI_EXD_TABLE_SIZE(acpi_ex_dump_node), NULL}, {ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(flags), "Flags"}, {ACPI_EXD_UINT8, ACPI_EXD_NSOFFSET(owner_id), "Owner Id"}, - {ACPI_EXD_UINT16, ACPI_EXD_NSOFFSET(reference_count), - "Reference Count"}, {ACPI_EXD_POINTER, ACPI_EXD_NSOFFSET(child), "Child List"}, {ACPI_EXD_POINTER, ACPI_EXD_NSOFFSET(peer), "Next Peer"} }; @@ -330,7 +332,7 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc, if (!info) { acpi_os_printf - ("ex_dump_object: Display not implemented for object type %s\n", + ("ExDumpObject: Display not implemented for object type %s\n", acpi_ut_get_object_type_name(obj_desc)); return; } @@ -454,7 +456,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth) u32 length; u32 index; - ACPI_FUNCTION_NAME("ex_dump_operand") + ACPI_FUNCTION_NAME(ex_dump_operand) if (! ((ACPI_LV_EXEC & acpi_dbg_level) @@ -463,6 +465,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth) } if (!obj_desc) { + /* This could be a null element of a package */ ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Null Object Descriptor\n")); @@ -522,7 +525,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth) case AML_REF_OF_OP: - acpi_os_printf("Reference: (ref_of) %p\n", + acpi_os_printf("Reference: (RefOf) %p\n", obj_desc->reference.object); break; @@ -532,6 +535,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth) obj_desc->reference.offset); if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { + /* Value is an Integer */ acpi_os_printf(" value is [%8.8X%8.8x]", @@ -610,7 +614,7 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth) case ACPI_TYPE_PACKAGE: - acpi_os_printf("Package [Len %X] element_array %p\n", + acpi_os_printf("Package [Len %X] ElementArray %p\n", obj_desc->package.count, obj_desc->package.elements); @@ -662,13 +666,13 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth) case ACPI_TYPE_LOCAL_BANK_FIELD: - acpi_os_printf("bank_field\n"); + acpi_os_printf("BankField\n"); break; case ACPI_TYPE_LOCAL_REGION_FIELD: acpi_os_printf - ("region_field: Bits=%X acc_width=%X Lock=%X Update=%X at byte=%X bit=%X of below:\n", + ("RegionField: Bits=%X AccWidth=%X Lock=%X Update=%X at byte=%X bit=%X of below:\n", obj_desc->field.bit_length, obj_desc->field.access_byte_width, obj_desc->field.field_flags & AML_FIELD_LOCK_RULE_MASK, @@ -681,12 +685,12 @@ void acpi_ex_dump_operand(union acpi_operand_object *obj_desc, u32 depth) case ACPI_TYPE_LOCAL_INDEX_FIELD: - acpi_os_printf("index_field\n"); + acpi_os_printf("IndexField\n"); break; case ACPI_TYPE_BUFFER_FIELD: - acpi_os_printf("buffer_field: %X bits at byte %X bit %X of\n", + acpi_os_printf("BufferField: %X bits at byte %X bit %X of\n", obj_desc->buffer_field.bit_length, obj_desc->buffer_field.base_byte_offset, obj_desc->buffer_field.start_field_bit_offset); @@ -777,7 +781,7 @@ acpi_ex_dump_operands(union acpi_operand_object **operands, { acpi_native_uint i; - ACPI_FUNCTION_NAME("ex_dump_operands"); + ACPI_FUNCTION_NAME(ex_dump_operands); if (!ident) { ident = "?"; @@ -901,7 +905,7 @@ static void acpi_ex_dump_reference_obj(union acpi_operand_object *obj_desc) acpi_os_printf("Could not convert name to pathname\n"); } else { acpi_os_printf("%s\n", (char *)ret_buf.pointer); - ACPI_MEM_FREE(ret_buf.pointer); + ACPI_FREE(ret_buf.pointer); } } else if (obj_desc->reference.object) { acpi_os_printf("\nReferenced Object: %p\n", @@ -1017,7 +1021,7 @@ acpi_ex_dump_package_obj(union acpi_operand_object *obj_desc, void acpi_ex_dump_object_descriptor(union acpi_operand_object *obj_desc, u32 flags) { - ACPI_FUNCTION_TRACE("ex_dump_object_descriptor"); + ACPI_FUNCTION_TRACE(ex_dump_object_descriptor); if (!obj_desc) { return_VOID; @@ -1046,7 +1050,7 @@ acpi_ex_dump_object_descriptor(union acpi_operand_object *obj_desc, u32 flags) if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) != ACPI_DESC_TYPE_OPERAND) { acpi_os_printf - ("ex_dump_object_descriptor: %p is not an ACPI operand object: [%s]\n", + ("ExDumpObjectDescriptor: %p is not an ACPI operand object: [%s]\n", obj_desc, acpi_ut_get_descriptor_name(obj_desc)); return_VOID; } diff --git a/drivers/acpi/executer/exfield.c b/drivers/acpi/executer/exfield.c index e259201ce9a0..9ea9c3a67ca9 100644 --- a/drivers/acpi/executer/exfield.c +++ b/drivers/acpi/executer/exfield.c @@ -73,7 +73,7 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, void *buffer; u8 locked; - ACPI_FUNCTION_TRACE_PTR("ex_read_data_from_field", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ex_read_data_from_field, obj_desc); /* Parameter validation */ @@ -142,6 +142,7 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, length = (acpi_size) ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->field.bit_length); if (length > acpi_gbl_integer_byte_width) { + /* Field is too large for an Integer, create a Buffer instead */ buffer_desc = acpi_ut_create_buffer_object(length); @@ -163,11 +164,11 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state, } ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "field_read [TO]: Obj %p, Type %X, Buf %p, byte_len %X\n", + "FieldRead [TO]: Obj %p, Type %X, Buf %p, ByteLen %X\n", obj_desc, ACPI_GET_OBJECT_TYPE(obj_desc), buffer, (u32) length)); ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "field_read [FROM]: bit_len %X, bit_off %X, byte_off %X\n", + "FieldRead [FROM]: BitLen %X, BitOff %X, ByteOff %X\n", obj_desc->common_field.bit_length, obj_desc->common_field.start_field_bit_offset, obj_desc->common_field.base_byte_offset)); @@ -219,7 +220,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, u8 locked; union acpi_operand_object *buffer_desc; - ACPI_FUNCTION_TRACE_PTR("ex_write_data_to_field", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ex_write_data_to_field, obj_desc); /* Parameter validation */ @@ -329,9 +330,10 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, ACPI_ROUND_BITS_UP_TO_BYTES(obj_desc->common_field.bit_length); if (length < required_length) { + /* We need to create a new buffer */ - new_buffer = ACPI_MEM_CALLOCATE(required_length); + new_buffer = ACPI_ALLOCATE_ZEROED(required_length); if (!new_buffer) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -347,14 +349,14 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, } ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "field_write [FROM]: Obj %p (%s:%X), Buf %p, byte_len %X\n", + "FieldWrite [FROM]: Obj %p (%s:%X), Buf %p, ByteLen %X\n", source_desc, acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE (source_desc)), ACPI_GET_OBJECT_TYPE(source_desc), buffer, length)); ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "field_write [TO]: Obj %p (%s:%X), bit_len %X, bit_off %X, byte_off %X\n", + "FieldWrite [TO]: Obj %p (%s:%X), BitLen %X, BitOff %X, ByteOff %X\n", obj_desc, acpi_ut_get_type_name(ACPI_GET_OBJECT_TYPE(obj_desc)), ACPI_GET_OBJECT_TYPE(obj_desc), @@ -375,7 +377,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc, /* Free temporary buffer if we used one */ if (new_buffer) { - ACPI_MEM_FREE(new_buffer); + ACPI_FREE(new_buffer); } return_ACPI_STATUS(status); diff --git a/drivers/acpi/executer/exfldio.c b/drivers/acpi/executer/exfldio.c index bd1af35f7fcf..051053f7cccb 100644 --- a/drivers/acpi/executer/exfldio.c +++ b/drivers/acpi/executer/exfldio.c @@ -87,7 +87,7 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc, acpi_status status = AE_OK; union acpi_operand_object *rgn_desc; - ACPI_FUNCTION_TRACE_U32("ex_setup_region", field_datum_byte_offset); + ACPI_FUNCTION_TRACE_U32(ex_setup_region, field_datum_byte_offset); rgn_desc = obj_desc->common_field.region_obj; @@ -112,7 +112,18 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc, } } + /* Exit if Address/Length have been disallowed by the host OS */ + + if (rgn_desc->common.flags & AOPOBJ_INVALID) { + return_ACPI_STATUS(AE_AML_ILLEGAL_ADDRESS); + } + + /* + * Exit now for SMBus address space, it has a non-linear address space + * and the request cannot be directly validated + */ if (rgn_desc->region.space_id == ACPI_ADR_SPACE_SMBUS) { + /* SMBus has a non-linear address space */ return_ACPI_STATUS(AE_OK); @@ -134,10 +145,10 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc, * length of one field datum (access width) must fit within the region. * (Region length is specified in bytes) */ - if (rgn_desc->region.length < (obj_desc->common_field.base_byte_offset + - field_datum_byte_offset + - obj_desc->common_field. - access_byte_width)) { + if (rgn_desc->region.length < + (obj_desc->common_field.base_byte_offset + + field_datum_byte_offset + + obj_desc->common_field.access_byte_width)) { if (acpi_gbl_enable_interpreter_slack) { /* * Slack mode only: We will go ahead and allow access to this @@ -217,7 +228,7 @@ acpi_ex_access_region(union acpi_operand_object *obj_desc, union acpi_operand_object *rgn_desc; acpi_physical_address address; - ACPI_FUNCTION_TRACE("ex_access_region"); + ACPI_FUNCTION_TRACE(ex_access_region); /* * Ensure that the region operands are fully evaluated and verify @@ -246,7 +257,7 @@ acpi_ex_access_region(union acpi_operand_object *obj_desc, } ACPI_DEBUG_PRINT_RAW((ACPI_DB_BFIELD, - " Region [%s:%X], Width %X, byte_base %X, Offset %X at %8.8X%8.8X\n", + " Region [%s:%X], Width %X, ByteBase %X, Offset %X at %8.8X%8.8X\n", acpi_ut_get_region_name(rgn_desc->region. space_id), rgn_desc->region.space_id, @@ -352,7 +363,7 @@ acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, acpi_status status; acpi_integer local_value; - ACPI_FUNCTION_TRACE_U32("ex_field_datum_io", field_datum_byte_offset); + ACPI_FUNCTION_TRACE_U32(ex_field_datum_io, field_datum_byte_offset); if (read_write == ACPI_READ) { if (!value) { @@ -487,10 +498,11 @@ acpi_ex_field_datum_io(union acpi_operand_object *obj_desc, } ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "I/O to Data Register: value_ptr %p\n", + "I/O to Data Register: ValuePtr %p\n", value)); if (read_write == ACPI_READ) { + /* Read the datum from the data_register */ status = @@ -559,7 +571,7 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc, acpi_integer merged_value; acpi_integer current_value; - ACPI_FUNCTION_TRACE_U32("ex_write_with_update_rule", mask); + ACPI_FUNCTION_TRACE_U32(ex_write_with_update_rule, mask); /* Start with the new bits */ @@ -568,6 +580,7 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc, /* If the mask is all ones, we don't need to worry about the update rule */ if (mask != ACPI_INTEGER_MAX) { + /* Decode the update rule */ switch (obj_desc->common_field. @@ -614,7 +627,7 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc, default: ACPI_ERROR((AE_INFO, - "Unknown update_rule value: %X", + "Unknown UpdateRule value: %X", (obj_desc->common_field. field_flags & AML_FIELD_UPDATE_RULE_MASK))); @@ -623,7 +636,7 @@ acpi_ex_write_with_update_rule(union acpi_operand_object *obj_desc, } ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Mask %8.8X%8.8X, datum_offset %X, Width %X, Value %8.8X%8.8X, merged_value %8.8X%8.8X\n", + "Mask %8.8X%8.8X, DatumOffset %X, Width %X, Value %8.8X%8.8X, MergedValue %8.8X%8.8X\n", ACPI_FORMAT_UINT64(mask), field_datum_byte_offset, obj_desc->common_field.access_byte_width, @@ -666,7 +679,7 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc, u32 field_datum_count; u32 i; - ACPI_FUNCTION_TRACE("ex_extract_from_field"); + ACPI_FUNCTION_TRACE(ex_extract_from_field); /* Validate target buffer and clear it */ @@ -704,6 +717,7 @@ acpi_ex_extract_from_field(union acpi_operand_object *obj_desc, /* Read the rest of the field */ for (i = 1; i < field_datum_count; i++) { + /* Get next input datum from the field */ field_offset += obj_desc->common_field.access_byte_width; @@ -771,6 +785,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, { acpi_status status; acpi_integer mask; + acpi_integer width_mask; acpi_integer merged_datum; acpi_integer raw_datum = 0; u32 field_offset = 0; @@ -780,7 +795,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, u32 field_datum_count; u32 i; - ACPI_FUNCTION_TRACE("ex_insert_into_field"); + ACPI_FUNCTION_TRACE(ex_insert_into_field); /* Validate input buffer */ @@ -795,15 +810,20 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, /* Compute the number of datums (access width data items) */ + width_mask = + ACPI_MASK_BITS_ABOVE(obj_desc->common_field.access_bit_width); mask = - ACPI_MASK_BITS_BELOW(obj_desc->common_field.start_field_bit_offset); - datum_count = - ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length, - obj_desc->common_field.access_bit_width); - field_datum_count = - ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length + - obj_desc->common_field.start_field_bit_offset, - obj_desc->common_field.access_bit_width); + width_mask & ACPI_MASK_BITS_BELOW(obj_desc->common_field. + start_field_bit_offset); + + datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length, + obj_desc->common_field.access_bit_width); + + field_datum_count = ACPI_ROUND_UP_TO(obj_desc->common_field.bit_length + + obj_desc->common_field. + start_field_bit_offset, + obj_desc->common_field. + access_bit_width); /* Get initial Datum from the input buffer */ @@ -817,6 +837,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, /* Write the entire field */ for (i = 1; i < field_datum_count; i++) { + /* Write merged datum to the target field */ merged_datum &= mask; @@ -833,7 +854,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc, merged_datum = raw_datum >> (obj_desc->common_field.access_bit_width - obj_desc->common_field.start_field_bit_offset); - mask = ACPI_INTEGER_MAX; + mask = width_mask; if (i == datum_count) { break; diff --git a/drivers/acpi/executer/exmisc.c b/drivers/acpi/executer/exmisc.c index 48c18d29222a..bd98aab017cf 100644 --- a/drivers/acpi/executer/exmisc.c +++ b/drivers/acpi/executer/exmisc.c @@ -72,7 +72,7 @@ acpi_ex_get_object_reference(union acpi_operand_object *obj_desc, union acpi_operand_object *reference_obj; union acpi_operand_object *referenced_obj; - ACPI_FUNCTION_TRACE_PTR("ex_get_object_reference", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ex_get_object_reference, obj_desc); *return_desc = NULL; @@ -168,7 +168,7 @@ acpi_ex_concat_template(union acpi_operand_object *operand0, acpi_size length1; acpi_size new_length; - ACPI_FUNCTION_TRACE("ex_concat_template"); + ACPI_FUNCTION_TRACE(ex_concat_template); /* * Find the end_tag descriptor in each resource template. @@ -250,7 +250,7 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0, char *new_buf; acpi_status status; - ACPI_FUNCTION_TRACE("ex_do_concatenate"); + ACPI_FUNCTION_TRACE(ex_do_concatenate); /* * Convert the second operand if necessary. The first operand @@ -445,10 +445,24 @@ acpi_ex_do_math_op(u16 opcode, acpi_integer integer0, acpi_integer integer1) case AML_SHIFT_LEFT_OP: /* shift_left (Operand, shift_count, Result) */ + /* + * We need to check if the shiftcount is larger than the integer bit + * width since the behavior of this is not well-defined in the C language. + */ + if (integer1 >= acpi_gbl_integer_bit_width) { + return (0); + } return (integer0 << integer1); case AML_SHIFT_RIGHT_OP: /* shift_right (Operand, shift_count, Result) */ + /* + * We need to check if the shiftcount is larger than the integer bit + * width since the behavior of this is not well-defined in the C language. + */ + if (integer1 >= acpi_gbl_integer_bit_width) { + return (0); + } return (integer0 >> integer1); case AML_SUBTRACT_OP: /* Subtract (Integer0, Integer1, Result) */ @@ -489,7 +503,7 @@ acpi_ex_do_logical_numeric_op(u16 opcode, acpi_status status = AE_OK; u8 local_result = FALSE; - ACPI_FUNCTION_TRACE("ex_do_logical_numeric_op"); + ACPI_FUNCTION_TRACE(ex_do_logical_numeric_op); switch (opcode) { case AML_LAND_OP: /* LAnd (Integer0, Integer1) */ @@ -557,7 +571,7 @@ acpi_ex_do_logical_op(u16 opcode, u8 local_result = FALSE; int compare; - ACPI_FUNCTION_TRACE("ex_do_logical_op"); + ACPI_FUNCTION_TRACE(ex_do_logical_op); /* * Convert the second operand if necessary. The first operand @@ -649,6 +663,7 @@ acpi_ex_do_logical_op(u16 opcode, /* Length and all bytes must be equal */ if ((length0 == length1) && (compare == 0)) { + /* Length and all bytes match ==> TRUE */ local_result = TRUE; diff --git a/drivers/acpi/executer/exmutex.c b/drivers/acpi/executer/exmutex.c index f843b22e20b9..93098d68cadf 100644 --- a/drivers/acpi/executer/exmutex.c +++ b/drivers/acpi/executer/exmutex.c @@ -61,7 +61,7 @@ acpi_ex_link_mutex(union acpi_operand_object *obj_desc, * * RETURN: None * - * DESCRIPTION: Remove a mutex from the "acquired_mutex" list + * DESCRIPTION: Remove a mutex from the "AcquiredMutex" list * ******************************************************************************/ @@ -95,7 +95,7 @@ void acpi_ex_unlink_mutex(union acpi_operand_object *obj_desc) * * RETURN: None * - * DESCRIPTION: Add a mutex to the "acquired_mutex" list for this walk + * DESCRIPTION: Add a mutex to the "AcquiredMutex" list for this walk * ******************************************************************************/ @@ -144,7 +144,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc, { acpi_status status; - ACPI_FUNCTION_TRACE_PTR("ex_acquire_mutex", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ex_acquire_mutex, obj_desc); if (!obj_desc) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -165,7 +165,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc, */ if (walk_state->thread->current_sync_level > obj_desc->mutex.sync_level) { ACPI_ERROR((AE_INFO, - "Cannot acquire Mutex [%4.4s], incorrect sync_level", + "Cannot acquire Mutex [%4.4s], incorrect SyncLevel", acpi_ut_get_node_name(obj_desc->mutex.node))); return_ACPI_STATUS(AE_AML_MUTEX_ORDER); } @@ -173,6 +173,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc, /* Support for multiple acquires by the owning thread */ if (obj_desc->mutex.owner_thread) { + /* Special case for Global Lock, allow all threads */ if ((obj_desc->mutex.owner_thread->thread_id == @@ -192,6 +193,7 @@ acpi_ex_acquire_mutex(union acpi_operand_object *time_desc, status = acpi_ex_system_acquire_mutex(time_desc, obj_desc); if (ACPI_FAILURE(status)) { + /* Includes failure from a timeout on time_desc */ return_ACPI_STATUS(status); @@ -232,7 +234,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, { acpi_status status; - ACPI_FUNCTION_TRACE("ex_release_mutex"); + ACPI_FUNCTION_TRACE(ex_release_mutex); if (!obj_desc) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -277,7 +279,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, */ if (obj_desc->mutex.sync_level > walk_state->thread->current_sync_level) { ACPI_ERROR((AE_INFO, - "Cannot release Mutex [%4.4s], incorrect sync_level", + "Cannot release Mutex [%4.4s], incorrect SyncLevel", acpi_ut_get_node_name(obj_desc->mutex.node))); return_ACPI_STATUS(AE_AML_MUTEX_ORDER); } @@ -286,6 +288,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc, obj_desc->mutex.acquisition_depth--; if (obj_desc->mutex.acquisition_depth != 0) { + /* Just decrement the depth and return */ return_ACPI_STATUS(AE_OK); diff --git a/drivers/acpi/executer/exnames.c b/drivers/acpi/executer/exnames.c index 054fe5e1a314..d3d70364626c 100644 --- a/drivers/acpi/executer/exnames.c +++ b/drivers/acpi/executer/exnames.c @@ -77,7 +77,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs) char *name_string; u32 size_needed; - ACPI_FUNCTION_TRACE("ex_allocate_name_string"); + ACPI_FUNCTION_TRACE(ex_allocate_name_string); /* * Allow room for all \ and ^ prefixes, all segments and a multi_name_prefix. @@ -85,6 +85,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs) * This may actually be somewhat longer than needed. */ if (prefix_count == ACPI_UINT32_MAX) { + /* Special case for root */ size_needed = 1 + (ACPI_NAME_SIZE * num_name_segs) + 2 + 1; @@ -97,7 +98,7 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs) * Allocate a buffer for the name. * This buffer must be deleted by the caller! */ - name_string = ACPI_MEM_ALLOCATE(size_needed); + name_string = ACPI_ALLOCATE(size_needed); if (!name_string) { ACPI_ERROR((AE_INFO, "Could not allocate size %d", size_needed)); @@ -119,11 +120,13 @@ static char *acpi_ex_allocate_name_string(u32 prefix_count, u32 num_name_segs) /* Set up Dual or Multi prefixes if needed */ if (num_name_segs > 2) { + /* Set up multi prefixes */ *temp_ptr++ = AML_MULTI_NAME_PREFIX_OP; *temp_ptr++ = (char)num_name_segs; } else if (2 == num_name_segs) { + /* Set up dual prefixes */ *temp_ptr++ = AML_DUAL_NAME_PREFIX; @@ -159,7 +162,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string) u32 index; char char_buf[5]; - ACPI_FUNCTION_TRACE("ex_name_segment"); + ACPI_FUNCTION_TRACE(ex_name_segment); /* * If first character is a digit, then we know that we aren't looking at a @@ -176,7 +179,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string) for (index = 0; (index < ACPI_NAME_SIZE) - && (acpi_ut_valid_acpi_character(*aml_address)); index++) { + && (acpi_ut_valid_acpi_char(*aml_address, 0)); index++) { char_buf[index] = *aml_address++; ACPI_DEBUG_PRINT((ACPI_DB_LOAD, "%c\n", char_buf[index])); } @@ -184,6 +187,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string) /* Valid name segment */ if (index == 4) { + /* Found 4 valid characters */ char_buf[4] = '\0'; @@ -249,11 +253,12 @@ acpi_ex_get_name_string(acpi_object_type data_type, u32 prefix_count = 0; u8 has_prefix = FALSE; - ACPI_FUNCTION_TRACE_PTR("ex_get_name_string", aml_address); + ACPI_FUNCTION_TRACE_PTR(ex_get_name_string, aml_address); if (ACPI_TYPE_LOCAL_REGION_FIELD == data_type || ACPI_TYPE_LOCAL_BANK_FIELD == data_type || ACPI_TYPE_LOCAL_INDEX_FIELD == data_type) { + /* Disallow prefixes for types associated with field_unit names */ name_string = acpi_ex_allocate_name_string(0, 1); @@ -272,7 +277,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, case AML_ROOT_PREFIX: ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "root_prefix(\\) at %p\n", + "RootPrefix(\\) at %p\n", aml_address)); /* @@ -290,7 +295,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, do { ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "parent_prefix (^) at %p\n", + "ParentPrefix (^) at %p\n", aml_address)); aml_address++; @@ -314,7 +319,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, case AML_DUAL_NAME_PREFIX: ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "dual_name_prefix at %p\n", + "DualNamePrefix at %p\n", aml_address)); aml_address++; @@ -341,7 +346,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, case AML_MULTI_NAME_PREFIX_OP: ACPI_DEBUG_PRINT((ACPI_DB_LOAD, - "multi_name_prefix at %p\n", + "MultiNamePrefix at %p\n", aml_address)); /* Fetch count of segments remaining in name path */ @@ -377,7 +382,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, if (prefix_count == ACPI_UINT32_MAX) { ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "name_seg is \"\\\" followed by NULL\n")); + "NameSeg is \"\\\" followed by NULL\n")); } /* Consume the NULL byte */ @@ -410,6 +415,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, } if (AE_CTRL_PENDING == status && has_prefix) { + /* Ran out of segments after processing a prefix */ ACPI_ERROR((AE_INFO, "Malformed Name at %p", name_string)); @@ -418,7 +424,7 @@ acpi_ex_get_name_string(acpi_object_type data_type, if (ACPI_FAILURE(status)) { if (name_string) { - ACPI_MEM_FREE(name_string); + ACPI_FREE(name_string); } return_ACPI_STATUS(status); } diff --git a/drivers/acpi/executer/exoparg1.c b/drivers/acpi/executer/exoparg1.c index 23d0823bcd5e..6374d8be88e0 100644 --- a/drivers/acpi/executer/exoparg1.c +++ b/drivers/acpi/executer/exoparg1.c @@ -89,7 +89,7 @@ acpi_status acpi_ex_opcode_0A_0T_1R(struct acpi_walk_state *walk_state) acpi_status status = AE_OK; union acpi_operand_object *return_desc = NULL; - ACPI_FUNCTION_TRACE_STR("ex_opcode_0A_0T_1R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_0A_0T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Examine the AML opcode */ @@ -150,7 +150,7 @@ acpi_status acpi_ex_opcode_1A_0T_0R(struct acpi_walk_state *walk_state) union acpi_operand_object **operand = &walk_state->operands[0]; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE_STR("ex_opcode_1A_0T_0R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_0R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Examine the AML opcode */ @@ -216,7 +216,7 @@ acpi_status acpi_ex_opcode_1A_1T_0R(struct acpi_walk_state *walk_state) acpi_status status = AE_OK; union acpi_operand_object **operand = &walk_state->operands[0]; - ACPI_FUNCTION_TRACE_STR("ex_opcode_1A_1T_0R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_0R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Examine the AML opcode */ @@ -264,7 +264,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) acpi_integer power_of_ten; acpi_integer digit; - ACPI_FUNCTION_TRACE_STR("ex_opcode_1A_1T_1R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_1T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Examine the AML opcode */ @@ -322,8 +322,9 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) /* Since the bit position is one-based, subtract from 33 (65) */ - return_desc->integer.value = temp32 == 0 ? 0 : - (ACPI_INTEGER_BIT_SIZE + 1) - temp32; + return_desc->integer.value = + temp32 == + 0 ? 0 : (ACPI_INTEGER_BIT_SIZE + 1) - temp32; break; case AML_FROM_BCD_OP: /* from_bcd (BCDValue, Result) */ @@ -342,6 +343,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) for (i = 0; (i < acpi_gbl_integer_nybble_width) && (digit > 0); i++) { + /* Get the least significant 4-bit BCD digit */ temp32 = ((u32) digit) & 0xF; @@ -487,6 +489,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) status = acpi_ex_convert_to_string(operand[0], &return_desc, ACPI_EXPLICIT_CONVERT_DECIMAL); if (return_desc == operand[0]) { + /* No conversion performed, add ref to handle return value */ acpi_ut_add_reference(return_desc); } @@ -497,6 +500,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) status = acpi_ex_convert_to_string(operand[0], &return_desc, ACPI_EXPLICIT_CONVERT_HEX); if (return_desc == operand[0]) { + /* No conversion performed, add ref to handle return value */ acpi_ut_add_reference(return_desc); } @@ -506,6 +510,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) status = acpi_ex_convert_to_buffer(operand[0], &return_desc); if (return_desc == operand[0]) { + /* No conversion performed, add ref to handle return value */ acpi_ut_add_reference(return_desc); } @@ -516,6 +521,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) status = acpi_ex_convert_to_integer(operand[0], &return_desc, ACPI_ANY_BASE); if (return_desc == operand[0]) { + /* No conversion performed, add ref to handle return value */ acpi_ut_add_reference(return_desc); } @@ -541,6 +547,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) } if (ACPI_SUCCESS(status)) { + /* Store the return value computed above into the target object */ status = acpi_ex_store(return_desc, operand[1], walk_state); @@ -548,16 +555,18 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state) cleanup: - if (!walk_state->result_obj) { - walk_state->result_obj = return_desc; - } - /* Delete return object on error */ if (ACPI_FAILURE(status)) { acpi_ut_remove_reference(return_desc); } + /* Save return object on success */ + + else if (!walk_state->result_obj) { + walk_state->result_obj = return_desc; + } + return_ACPI_STATUS(status); } @@ -582,7 +591,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) u32 type; acpi_integer value; - ACPI_FUNCTION_TRACE_STR("ex_opcode_1A_0T_1R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_1A_0T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Examine the AML opcode */ @@ -625,6 +634,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) temp_desc = operand[0]; if (ACPI_GET_DESCRIPTOR_TYPE(temp_desc) == ACPI_DESC_TYPE_OPERAND) { + /* Internal reference object - prevent deletion */ acpi_ut_add_reference(temp_desc); @@ -689,6 +699,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) if (ACPI_FAILURE(status)) { goto cleanup; } + /* Allocate a descriptor to hold the type. */ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); @@ -777,8 +788,25 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) /* Check for a method local or argument, or standalone String */ - if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) != + if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) == ACPI_DESC_TYPE_NAMED) { + temp_desc = + acpi_ns_get_attached_object((struct + acpi_namespace_node *) + operand[0]); + if (temp_desc + && + ((ACPI_GET_OBJECT_TYPE(temp_desc) == + ACPI_TYPE_STRING) + || (ACPI_GET_OBJECT_TYPE(temp_desc) == + ACPI_TYPE_LOCAL_REFERENCE))) { + operand[0] = temp_desc; + acpi_ut_add_reference(temp_desc); + } else { + status = AE_AML_OPERAND_TYPE; + goto cleanup; + } + } else { switch (ACPI_GET_OBJECT_TYPE(operand[0])) { case ACPI_TYPE_LOCAL_REFERENCE: /* @@ -827,26 +855,35 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) break; case ACPI_TYPE_STRING: + break; + default: + status = AE_AML_OPERAND_TYPE; + goto cleanup; + } + } + + if (ACPI_GET_DESCRIPTOR_TYPE(operand[0]) != + ACPI_DESC_TYPE_NAMED) { + if (ACPI_GET_OBJECT_TYPE(operand[0]) == + ACPI_TYPE_STRING) { /* * This is a deref_of (String). The string is a reference * to a named ACPI object. * * 1) Find the owning Node - * 2) Dereference the node to an actual object. Could be a + * 2) Dereference the node to an actual object. Could be a * Field, so we need to resolve the node to a value. */ status = - acpi_ns_get_node_by_path(operand[0]->string. - pointer, - walk_state-> - scope_info->scope. - node, - ACPI_NS_SEARCH_PARENT, - ACPI_CAST_INDIRECT_PTR - (struct - acpi_namespace_node, - &return_desc)); + acpi_ns_get_node(walk_state->scope_info-> + scope.node, + operand[0]->string.pointer, + ACPI_NS_SEARCH_PARENT, + ACPI_CAST_INDIRECT_PTR + (struct + acpi_namespace_node, + &return_desc)); if (ACPI_FAILURE(status)) { goto cleanup; } @@ -857,11 +894,6 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) (struct acpi_namespace_node, &return_desc), walk_state); goto cleanup; - - default: - - status = AE_AML_OPERAND_TYPE; - goto cleanup; } } @@ -937,13 +969,12 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) acpi_ut_add_reference (return_desc); } - break; default: ACPI_ERROR((AE_INFO, - "Unknown Index target_type %X in obj %p", + "Unknown Index TargetType %X in obj %p", operand[0]->reference. target_type, operand[0])); status = AE_AML_OPERAND_TYPE; @@ -957,7 +988,6 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) if (ACPI_GET_DESCRIPTOR_TYPE(return_desc) == ACPI_DESC_TYPE_NAMED) { - return_desc = acpi_ns_get_attached_object((struct acpi_namespace_node @@ -972,7 +1002,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) default: ACPI_ERROR((AE_INFO, - "Unknown opcode in ref(%p) - %X", + "Unknown opcode in reference(%p) - %X", operand[0], operand[0]->reference.opcode)); @@ -998,6 +1028,11 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state) acpi_ut_remove_reference(return_desc); } - walk_state->result_obj = return_desc; + /* Save return object on success */ + + else { + walk_state->result_obj = return_desc; + } + return_ACPI_STATUS(status); } diff --git a/drivers/acpi/executer/exoparg2.c b/drivers/acpi/executer/exoparg2.c index e263a5ddd405..7d2cbc113160 100644 --- a/drivers/acpi/executer/exoparg2.c +++ b/drivers/acpi/executer/exoparg2.c @@ -92,7 +92,7 @@ acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state) u32 value; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE_STR("ex_opcode_2A_0T_0R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_0R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Examine the opcode */ @@ -121,7 +121,7 @@ acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state) #ifdef ACPI_GPE_NOTIFY_CHECK /* * GPE method wake/notify check. Here, we want to ensure that we - * don't receive any "device_wake" Notifies from a GPE _Lxx or _Exx + * don't receive any "DeviceWake" Notifies from a GPE _Lxx or _Exx * GPE method during system runtime. If we do, the GPE is marked * as "wake-only" and disabled. * @@ -138,6 +138,7 @@ acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state) acpi_ev_check_for_wake_only_gpe(walk_state-> gpe_event_info); if (ACPI_FAILURE(status)) { + /* AE_WAKE_ONLY_GPE only error, means ignore this notify */ return_ACPI_STATUS(AE_OK) @@ -185,7 +186,7 @@ acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state) union acpi_operand_object *return_desc2 = NULL; acpi_status status; - ACPI_FUNCTION_TRACE_STR("ex_opcode_2A_2T_1R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_2T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Execute the opcode */ @@ -252,6 +253,7 @@ acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state) acpi_ut_remove_reference(return_desc2); if (ACPI_FAILURE(status)) { + /* Delete the return object */ acpi_ut_remove_reference(return_desc1); @@ -281,12 +283,13 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state) acpi_status status = AE_OK; acpi_size length; - ACPI_FUNCTION_TRACE_STR("ex_opcode_2A_1T_1R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_1T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Execute the opcode */ if (walk_state->op_info->flags & AML_MATH) { + /* All simple math opcodes (add, etc.) */ return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); @@ -383,54 +386,70 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state) goto cleanup; } + /* Initialize the Index reference object */ + index = operand[1]->integer.value; + return_desc->reference.offset = (u32) index; + return_desc->reference.opcode = AML_INDEX_OP; - /* At this point, the Source operand is a Package, Buffer, or String */ + /* + * At this point, the Source operand is a String, Buffer, or Package. + * Verify that the index is within range. + */ + switch (ACPI_GET_OBJECT_TYPE(operand[0])) { + case ACPI_TYPE_STRING: - if (ACPI_GET_OBJECT_TYPE(operand[0]) == ACPI_TYPE_PACKAGE) { - /* Object to be indexed is a Package */ + if (index >= operand[0]->string.length) { + status = AE_AML_STRING_LIMIT; + } + + return_desc->reference.target_type = + ACPI_TYPE_BUFFER_FIELD; + break; + + case ACPI_TYPE_BUFFER: + + if (index >= operand[0]->buffer.length) { + status = AE_AML_BUFFER_LIMIT; + } + + return_desc->reference.target_type = + ACPI_TYPE_BUFFER_FIELD; + break; + + case ACPI_TYPE_PACKAGE: if (index >= operand[0]->package.count) { - ACPI_ERROR((AE_INFO, - "Index value (%X%8.8X) beyond package end (%X)", - ACPI_FORMAT_UINT64(index), - operand[0]->package.count)); status = AE_AML_PACKAGE_LIMIT; - goto cleanup; } return_desc->reference.target_type = ACPI_TYPE_PACKAGE; - return_desc->reference.object = operand[0]; return_desc->reference.where = &operand[0]->package.elements[index]; - } else { - /* Object to be indexed is a Buffer/String */ + break; - if (index >= operand[0]->buffer.length) { - ACPI_ERROR((AE_INFO, - "Index value (%X%8.8X) beyond end of buffer (%X)", - ACPI_FORMAT_UINT64(index), - operand[0]->buffer.length)); - status = AE_AML_BUFFER_LIMIT; - goto cleanup; - } + default: - return_desc->reference.target_type = - ACPI_TYPE_BUFFER_FIELD; - return_desc->reference.object = operand[0]; + status = AE_AML_INTERNAL; + goto cleanup; + } + + /* Failure means that the Index was beyond the end of the object */ + + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "Index (%X%8.8X) is beyond end of object", + ACPI_FORMAT_UINT64(index))); + goto cleanup; } /* - * Add a reference to the target package/buffer/string for the life - * of the index. + * Save the target object and add a reference to it for the life + * of the index */ + return_desc->reference.object = operand[0]; acpi_ut_add_reference(operand[0]); - /* Complete the Index reference object */ - - return_desc->reference.opcode = AML_INDEX_OP; - return_desc->reference.offset = (u32) index; - /* Store the reference to the Target */ status = acpi_ex_store(return_desc, operand[2], walk_state); @@ -495,7 +514,7 @@ acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state) acpi_status status = AE_OK; u8 logical_result = FALSE; - ACPI_FUNCTION_TRACE_STR("ex_opcode_2A_0T_1R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); /* Create the internal return object */ @@ -509,6 +528,7 @@ acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state) /* Execute the Opcode */ if (walk_state->op_info->flags & AML_LOGICAL_NUMERIC) { + /* logical_op (Operand0, Operand1) */ status = acpi_ex_do_logical_numeric_op(walk_state->opcode, @@ -518,6 +538,7 @@ acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state) value, &logical_result); goto store_logical_result; } else if (walk_state->op_info->flags & AML_LOGICAL) { + /* logical_op (Operand0, Operand1) */ status = acpi_ex_do_logical_op(walk_state->opcode, operand[0], diff --git a/drivers/acpi/executer/exoparg3.c b/drivers/acpi/executer/exoparg3.c index 6a3a883cb8a3..e2d945dfd509 100644 --- a/drivers/acpi/executer/exoparg3.c +++ b/drivers/acpi/executer/exoparg3.c @@ -88,20 +88,19 @@ acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state) struct acpi_signal_fatal_info *fatal; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE_STR("ex_opcode_3A_0T_0R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_0T_0R, acpi_ps_get_opcode_name(walk_state->opcode)); switch (walk_state->opcode) { case AML_FATAL_OP: /* Fatal (fatal_type fatal_code fatal_arg) */ ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "fatal_op: Type %X Code %X Arg %X <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n", + "FatalOp: Type %X Code %X Arg %X <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<\n", (u32) operand[0]->integer.value, (u32) operand[1]->integer.value, (u32) operand[2]->integer.value)); - fatal = - ACPI_MEM_ALLOCATE(sizeof(struct acpi_signal_fatal_info)); + fatal = ACPI_ALLOCATE(sizeof(struct acpi_signal_fatal_info)); if (fatal) { fatal->type = (u32) operand[0]->integer.value; fatal->code = (u32) operand[1]->integer.value; @@ -114,7 +113,7 @@ acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state) /* Might return while OS is shutting down, just continue */ - ACPI_MEM_FREE(fatal); + ACPI_FREE(fatal); break; default: @@ -151,7 +150,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state) acpi_integer index; acpi_size length; - ACPI_FUNCTION_TRACE_STR("ex_opcode_3A_1T_1R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_3A_1T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); switch (walk_state->opcode) { @@ -196,7 +195,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state) /* Always allocate a new buffer for the String */ - buffer = ACPI_MEM_CALLOCATE((acpi_size) length + 1); + buffer = ACPI_ALLOCATE_ZEROED((acpi_size) length + 1); if (!buffer) { status = AE_NO_MEMORY; goto cleanup; @@ -208,9 +207,10 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state) /* If the requested length is zero, don't allocate a buffer */ if (length > 0) { + /* Allocate a new buffer for the Buffer */ - buffer = ACPI_MEM_CALLOCATE(length); + buffer = ACPI_ALLOCATE_ZEROED(length); if (!buffer) { status = AE_NO_MEMORY; goto cleanup; @@ -225,6 +225,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state) } if (buffer) { + /* We have a buffer, copy the portion requested */ ACPI_MEMCPY(buffer, operand[0]->string.pointer + index, diff --git a/drivers/acpi/executer/exoparg6.c b/drivers/acpi/executer/exoparg6.c index e043d924444f..f0c0ba6eb408 100644 --- a/drivers/acpi/executer/exoparg6.c +++ b/drivers/acpi/executer/exoparg6.c @@ -220,7 +220,7 @@ acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state) acpi_integer index; union acpi_operand_object *this_element; - ACPI_FUNCTION_TRACE_STR("ex_opcode_6A_0T_1R", + ACPI_FUNCTION_TRACE_STR(ex_opcode_6A_0T_1R, acpi_ps_get_opcode_name(walk_state->opcode)); switch (walk_state->opcode) { @@ -276,6 +276,7 @@ acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state) * match was found. */ for (; index < operand[0]->package.count; index++) { + /* Get the current package element */ this_element = operand[0]->package.elements[index]; diff --git a/drivers/acpi/executer/exprep.c b/drivers/acpi/executer/exprep.c index 7719ae5d4f16..44d064f427b9 100644 --- a/drivers/acpi/executer/exprep.c +++ b/drivers/acpi/executer/exprep.c @@ -97,7 +97,7 @@ acpi_ex_generate_access(u32 field_bit_offset, u32 minimum_accesses = 0xFFFFFFFF; u32 accesses; - ACPI_FUNCTION_TRACE("ex_generate_access"); + ACPI_FUNCTION_TRACE(ex_generate_access); /* Round Field start offset and length to "minimal" byte boundaries */ @@ -146,7 +146,7 @@ acpi_ex_generate_access(u32 field_bit_offset, accesses = field_end_offset - field_start_offset; ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "access_width %d end is within region\n", + "AccessWidth %d end is within region\n", access_byte_width)); ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, @@ -173,7 +173,7 @@ acpi_ex_generate_access(u32 field_bit_offset, } } else { ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "access_width %d end is NOT within region\n", + "AccessWidth %d end is NOT within region\n", access_byte_width)); if (access_byte_width == 1) { ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, @@ -228,7 +228,7 @@ acpi_ex_decode_field_access(union acpi_operand_object *obj_desc, u32 byte_alignment; u32 bit_length; - ACPI_FUNCTION_TRACE("ex_decode_field_access"); + ACPI_FUNCTION_TRACE(ex_decode_field_access); access = (field_flags & AML_FIELD_ACCESS_TYPE_MASK); @@ -322,7 +322,7 @@ acpi_ex_prep_common_field_object(union acpi_operand_object *obj_desc, u32 byte_alignment; u32 nearest_byte_address; - ACPI_FUNCTION_TRACE("ex_prep_common_field_object"); + ACPI_FUNCTION_TRACE(ex_prep_common_field_object); /* * Note: the structure being initialized is the @@ -415,13 +415,13 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) u32 type; acpi_status status; - ACPI_FUNCTION_TRACE("ex_prep_field_value"); + ACPI_FUNCTION_TRACE(ex_prep_field_value); /* Parameter validation */ if (info->field_type != ACPI_TYPE_LOCAL_INDEX_FIELD) { if (!info->region_node) { - ACPI_ERROR((AE_INFO, "Null region_node")); + ACPI_ERROR((AE_INFO, "Null RegionNode")); return_ACPI_STATUS(AE_AML_NO_OPERAND); } @@ -467,7 +467,7 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) acpi_ut_add_reference(obj_desc->field.region_obj); ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "region_field: bit_off %X, Off %X, Gran %X, Region %p\n", + "RegionField: BitOff %X, Off %X, Gran %X, Region %p\n", obj_desc->field.start_field_bit_offset, obj_desc->field.base_byte_offset, obj_desc->field.access_byte_width, @@ -488,7 +488,7 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) acpi_ut_add_reference(obj_desc->bank_field.bank_obj); ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Bank Field: bit_off %X, Off %X, Gran %X, Region %p, bank_reg %p\n", + "Bank Field: BitOff %X, Off %X, Gran %X, Region %p, BankReg %p\n", obj_desc->bank_field.start_field_bit_offset, obj_desc->bank_field.base_byte_offset, obj_desc->field.access_byte_width, @@ -519,16 +519,29 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) acpi_ut_add_reference(obj_desc->index_field.index_obj); /* + * April 2006: Changed to match MS behavior + * * The value written to the Index register is the byte offset of the - * target field - * Note: may change code to: ACPI_DIV_8 (Info->field_bit_position) + * target field in units of the granularity of the index_field + * + * Previously, the value was calculated as an index in terms of the + * width of the Data register, as below: + * + * obj_desc->index_field.Value = (u32) + * (Info->field_bit_position / ACPI_MUL_8 ( + * obj_desc->Field.access_byte_width)); + * + * February 2006: Tried value as a byte offset: + * obj_desc->index_field.Value = (u32) + * ACPI_DIV_8 (Info->field_bit_position); */ - obj_desc->index_field.value = (u32) - (info->field_bit_position / - ACPI_MUL_8(obj_desc->field.access_byte_width)); + obj_desc->index_field.value = + (u32) ACPI_ROUND_DOWN(ACPI_DIV_8(info->field_bit_position), + obj_desc->index_field. + access_byte_width); ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "index_field: bit_off %X, Off %X, Value %X, Gran %X, Index %p, Data %p\n", + "IndexField: BitOff %X, Off %X, Value %X, Gran %X, Index %p, Data %p\n", obj_desc->index_field.start_field_bit_offset, obj_desc->index_field.base_byte_offset, obj_desc->index_field.value, @@ -550,7 +563,7 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info) acpi_ns_get_type(info->field_node)); ACPI_DEBUG_PRINT((ACPI_DB_BFIELD, - "Set named_obj %p [%4.4s], obj_desc %p\n", + "Set NamedObj %p [%4.4s], ObjDesc %p\n", info->field_node, acpi_ut_get_node_name(info->field_node), obj_desc)); diff --git a/drivers/acpi/executer/exregion.c b/drivers/acpi/executer/exregion.c index 6a4cfdff606d..3cc97ba48b36 100644 --- a/drivers/acpi/executer/exregion.c +++ b/drivers/acpi/executer/exregion.c @@ -81,7 +81,7 @@ acpi_ex_system_memory_space_handler(u32 function, u32 remainder; #endif - ACPI_FUNCTION_TRACE("ex_system_memory_space_handler"); + ACPI_FUNCTION_TRACE(ex_system_memory_space_handler); /* Validate and translate the bit width */ @@ -103,7 +103,7 @@ acpi_ex_system_memory_space_handler(u32 function, break; default: - ACPI_ERROR((AE_INFO, "Invalid system_memory width %d", + ACPI_ERROR((AE_INFO, "Invalid SystemMemory width %d", bit_width)); return_ACPI_STATUS(AE_AML_OPERAND_VALUE); } @@ -135,6 +135,7 @@ acpi_ex_system_memory_space_handler(u32 function, * Delete the existing mapping and create a new one. */ if (mem_info->mapped_length) { + /* Valid mapping, delete it */ acpi_os_unmap_memory(mem_info->mapped_logical_address, @@ -181,8 +182,8 @@ acpi_ex_system_memory_space_handler(u32 function, (acpi_integer) mem_info->mapped_physical_address); ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "system_memory %d (%d width) Address=%8.8X%8.8X\n", - function, bit_width, ACPI_FORMAT_UINT64(address))); + "System-Memory (width %d) R/W %d Address=%8.8X%8.8X\n", + bit_width, function, ACPI_FORMAT_UINT64(address))); /* * Perform the memory read or write @@ -283,11 +284,11 @@ acpi_ex_system_io_space_handler(u32 function, acpi_status status = AE_OK; u32 value32; - ACPI_FUNCTION_TRACE("ex_system_io_space_handler"); + ACPI_FUNCTION_TRACE(ex_system_io_space_handler); ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "system_iO %d (%d width) Address=%8.8X%8.8X\n", - function, bit_width, ACPI_FORMAT_UINT64(address))); + "System-IO (width %d) R/W %d Address=%8.8X%8.8X\n", + bit_width, function, ACPI_FORMAT_UINT64(address))); /* Decode the function parameter */ @@ -342,7 +343,7 @@ acpi_ex_pci_config_space_handler(u32 function, struct acpi_pci_id *pci_id; u16 pci_register; - ACPI_FUNCTION_TRACE("ex_pci_config_space_handler"); + ACPI_FUNCTION_TRACE(ex_pci_config_space_handler); /* * The arguments to acpi_os(Read|Write)pci_configuration are: @@ -360,7 +361,7 @@ acpi_ex_pci_config_space_handler(u32 function, pci_register = (u16) (u32) address; ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "pci_config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n", + "Pci-Config %d (%d) Seg(%04x) Bus(%04x) Dev(%04x) Func(%04x) Reg(%04x)\n", function, bit_width, pci_id->segment, pci_id->bus, pci_id->device, pci_id->function, pci_register)); @@ -414,7 +415,7 @@ acpi_ex_cmos_space_handler(u32 function, { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ex_cmos_space_handler"); + ACPI_FUNCTION_TRACE(ex_cmos_space_handler); return_ACPI_STATUS(status); } @@ -446,7 +447,7 @@ acpi_ex_pci_bar_space_handler(u32 function, { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ex_pci_bar_space_handler"); + ACPI_FUNCTION_TRACE(ex_pci_bar_space_handler); return_ACPI_STATUS(status); } @@ -476,23 +477,16 @@ acpi_ex_data_table_space_handler(u32 function, acpi_integer * value, void *handler_context, void *region_context) { - acpi_status status = AE_OK; - u32 byte_width = ACPI_DIV_8(bit_width); - u32 i; - char *logical_addr_ptr; - - ACPI_FUNCTION_TRACE("ex_data_table_space_handler"); - - logical_addr_ptr = ACPI_PHYSADDR_TO_PTR(address); + ACPI_FUNCTION_TRACE(ex_data_table_space_handler); /* Perform the memory read or write */ switch (function) { case ACPI_READ: - for (i = 0; i < byte_width; i++) { - ((char *)value)[i] = logical_addr_ptr[i]; - } + ACPI_MEMCPY(ACPI_CAST_PTR(char, value), + ACPI_PHYSADDR_TO_PTR(address), + ACPI_DIV_8(bit_width)); break; case ACPI_WRITE: @@ -501,5 +495,5 @@ acpi_ex_data_table_space_handler(u32 function, return_ACPI_STATUS(AE_SUPPORT); } - return_ACPI_STATUS(status); + return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/executer/exresnte.c b/drivers/acpi/executer/exresnte.c index 01b26c80d22b..3089b05a1368 100644 --- a/drivers/acpi/executer/exresnte.c +++ b/drivers/acpi/executer/exresnte.c @@ -87,7 +87,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, struct acpi_namespace_node *node; acpi_object_type entry_type; - ACPI_FUNCTION_TRACE("ex_resolve_node_to_value"); + ACPI_FUNCTION_TRACE(ex_resolve_node_to_value); /* * The stack pointer points to a struct acpi_namespace_node (Node). Get the @@ -97,12 +97,13 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, source_desc = acpi_ns_get_attached_object(node); entry_type = acpi_ns_get_type((acpi_handle) node); - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Entry=%p source_desc=%p [%s]\n", + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Entry=%p SourceDesc=%p [%s]\n", node, source_desc, acpi_ut_get_type_name(entry_type))); if ((entry_type == ACPI_TYPE_LOCAL_ALIAS) || (entry_type == ACPI_TYPE_LOCAL_METHOD_ALIAS)) { + /* There is always exactly one level of indirection */ node = ACPI_CAST_PTR(struct acpi_namespace_node, node->object); @@ -113,10 +114,11 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, /* * Several object types require no further processing: - * 1) Devices rarely have an attached object, return the Node + * 1) Device/Thermal objects don't have a "real" subobject, return the Node * 2) Method locals and arguments have a pseudo-Node */ - if (entry_type == ACPI_TYPE_DEVICE || + if ((entry_type == ACPI_TYPE_DEVICE) || + (entry_type == ACPI_TYPE_THERMAL) || (node->flags & (ANOBJ_METHOD_ARG | ANOBJ_METHOD_LOCAL))) { return_ACPI_STATUS(AE_OK); } @@ -141,6 +143,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, status = acpi_ds_get_package_arguments(source_desc); if (ACPI_SUCCESS(status)) { + /* Return an additional reference to the object */ obj_desc = source_desc; @@ -158,6 +161,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, status = acpi_ds_get_buffer_arguments(source_desc); if (ACPI_SUCCESS(status)) { + /* Return an additional reference to the object */ obj_desc = source_desc; @@ -199,7 +203,7 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, case ACPI_TYPE_LOCAL_INDEX_FIELD: ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "field_read Node=%p source_desc=%p Type=%X\n", + "FieldRead Node=%p SourceDesc=%p Type=%X\n", node, source_desc, entry_type)); status = @@ -213,7 +217,6 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, case ACPI_TYPE_METHOD: case ACPI_TYPE_POWER: case ACPI_TYPE_PROCESSOR: - case ACPI_TYPE_THERMAL: case ACPI_TYPE_EVENT: case ACPI_TYPE_REGION: @@ -240,6 +243,8 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, /* This is a ddb_handle */ /* Return an additional reference to the object */ + case AML_REF_OF_OP: + obj_desc = source_desc; acpi_ut_add_reference(obj_desc); break; diff --git a/drivers/acpi/executer/exresolv.c b/drivers/acpi/executer/exresolv.c index 1deed492fe88..6499de878017 100644 --- a/drivers/acpi/executer/exresolv.c +++ b/drivers/acpi/executer/exresolv.c @@ -78,7 +78,7 @@ acpi_ex_resolve_to_value(union acpi_operand_object **stack_ptr, { acpi_status status; - ACPI_FUNCTION_TRACE_PTR("ex_resolve_to_value", stack_ptr); + ACPI_FUNCTION_TRACE_PTR(ex_resolve_to_value, stack_ptr); if (!stack_ptr || !*stack_ptr) { ACPI_ERROR((AE_INFO, "Internal - null pointer")); @@ -144,7 +144,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, union acpi_operand_object *obj_desc; u16 opcode; - ACPI_FUNCTION_TRACE("ex_resolve_object_to_value"); + ACPI_FUNCTION_TRACE(ex_resolve_object_to_value); stack_desc = *stack_ptr; @@ -190,7 +190,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, } ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "[Arg/Local %X] value_obj is %p\n", + "[Arg/Local %X] ValueObj is %p\n", stack_desc->reference.offset, obj_desc)); @@ -239,7 +239,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, /* Invalid reference object */ ACPI_ERROR((AE_INFO, - "Unknown target_type %X in Index/Reference obj %p", + "Unknown TargetType %X in Index/Reference obj %p", stack_desc->reference.target_type, stack_desc)); status = AE_AML_INTERNAL; @@ -257,10 +257,24 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, case AML_INT_NAMEPATH_OP: /* Reference to a named object */ - /* Get the object pointed to by the namespace node */ + /* Dereference the name */ + + if ((stack_desc->reference.node->type == + ACPI_TYPE_DEVICE) + || (stack_desc->reference.node->type == + ACPI_TYPE_THERMAL)) { + + /* These node types do not have 'real' subobjects */ + + *stack_ptr = (void *)stack_desc->reference.node; + } else { + /* Get the object pointed to by the namespace node */ + + *stack_ptr = + (stack_desc->reference.node)->object; + acpi_ut_add_reference(*stack_ptr); + } - *stack_ptr = (stack_desc->reference.node)->object; - acpi_ut_add_reference(*stack_ptr); acpi_ut_remove_reference(stack_desc); break; @@ -293,7 +307,7 @@ acpi_ex_resolve_object_to_value(union acpi_operand_object **stack_ptr, case ACPI_TYPE_LOCAL_INDEX_FIELD: ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "field_read source_desc=%p Type=%X\n", + "FieldRead SourceDesc=%p Type=%X\n", stack_desc, ACPI_GET_OBJECT_TYPE(stack_desc))); @@ -337,7 +351,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, acpi_object_type type; acpi_status status; - ACPI_FUNCTION_TRACE("acpi_ex_resolve_multiple"); + ACPI_FUNCTION_TRACE(acpi_ex_resolve_multiple); /* Operand can be either a namespace node or an operand descriptor */ @@ -382,10 +396,16 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, while (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_LOCAL_REFERENCE) { switch (obj_desc->reference.opcode) { case AML_REF_OF_OP: + case AML_INT_NAMEPATH_OP: /* Dereference the reference pointer */ - node = obj_desc->reference.object; + if (obj_desc->reference.opcode == AML_REF_OF_OP) { + node = obj_desc->reference.object; + } else { /* AML_INT_NAMEPATH_OP */ + + node = obj_desc->reference.node; + } /* All "References" point to a NS node */ @@ -401,6 +421,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, obj_desc = acpi_ns_get_attached_object(node); if (!obj_desc) { + /* No object, use the NS node type */ type = acpi_ns_get_type(node); @@ -432,6 +453,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, */ obj_desc = *(obj_desc->reference.where); if (!obj_desc) { + /* NULL package elements are allowed */ type = 0; /* Uninitialized */ @@ -439,39 +461,6 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, } break; - case AML_INT_NAMEPATH_OP: - - /* Dereference the reference pointer */ - - node = obj_desc->reference.node; - - /* All "References" point to a NS node */ - - if (ACPI_GET_DESCRIPTOR_TYPE(node) != - ACPI_DESC_TYPE_NAMED) { - ACPI_ERROR((AE_INFO, "Not a NS node %p [%s]", - node, - acpi_ut_get_descriptor_name(node))); - return_ACPI_STATUS(AE_AML_INTERNAL); - } - - /* Get the attached object */ - - obj_desc = acpi_ns_get_attached_object(node); - if (!obj_desc) { - /* No object, use the NS node type */ - - type = acpi_ns_get_type(node); - goto exit; - } - - /* Check for circular references */ - - if (obj_desc == operand) { - return_ACPI_STATUS(AE_AML_CIRCULAR_REFERENCE); - } - break; - case AML_LOCAL_OP: case AML_ARG_OP: @@ -513,7 +502,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state, case AML_DEBUG_OP: - /* The Debug Object is of type "debug_object" */ + /* The Debug Object is of type "DebugObject" */ type = ACPI_TYPE_DEBUG_OBJECT; goto exit; diff --git a/drivers/acpi/executer/exresop.c b/drivers/acpi/executer/exresop.c index a1c000f5a415..4c93d0972333 100644 --- a/drivers/acpi/executer/exresop.c +++ b/drivers/acpi/executer/exresop.c @@ -77,6 +77,7 @@ acpi_ex_check_object_type(acpi_object_type type_needed, ACPI_FUNCTION_ENTRY(); if (type_needed == ACPI_TYPE_ANY) { + /* All types OK, so we don't perform any typechecks */ return (AE_OK); @@ -143,7 +144,7 @@ acpi_ex_resolve_operands(u16 opcode, acpi_object_type type_needed; u16 target_op = 0; - ACPI_FUNCTION_TRACE_U32("ex_resolve_operands", opcode); + ACPI_FUNCTION_TRACE_U32(ex_resolve_operands, opcode); op_info = acpi_ps_get_opcode_info(opcode); if (op_info->class == AML_CLASS_UNKNOWN) { @@ -158,7 +159,7 @@ acpi_ex_resolve_operands(u16 opcode, } ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Opcode %X [%s] required_operand_types=%8.8X\n", + "Opcode %X [%s] RequiredOperandTypes=%8.8X\n", opcode, op_info->name, arg_types)); /* @@ -224,6 +225,7 @@ acpi_ex_resolve_operands(u16 opcode, } if (object_type == (u8) ACPI_TYPE_LOCAL_REFERENCE) { + /* Decode the Reference */ op_info = acpi_ps_get_opcode_info(opcode); @@ -247,7 +249,7 @@ acpi_ex_resolve_operands(u16 opcode, ACPI_DEBUG_ONLY_MEMBERS(ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, - "Operand is a Reference, ref_opcode [%s]\n", + "Operand is a Reference, RefOpcode [%s]\n", (acpi_ps_get_opcode_info (obj_desc-> reference. @@ -332,6 +334,7 @@ acpi_ex_resolve_operands(u16 opcode, } if (obj_desc->reference.opcode == AML_NAME_OP) { + /* Convert a named reference to the actual named object */ temp_node = obj_desc->reference.object; @@ -623,7 +626,7 @@ acpi_ex_resolve_operands(u16 opcode, default: ACPI_ERROR((AE_INFO, - "Needed [Region/region_field], found [%s] %p", + "Needed [Region/RegionField], found [%s] %p", acpi_ut_get_object_type_name (obj_desc), obj_desc)); @@ -662,6 +665,7 @@ acpi_ex_resolve_operands(u16 opcode, } if (target_op == AML_DEBUG_OP) { + /* Allow store of any object to the Debug object */ break; diff --git a/drivers/acpi/executer/exstore.c b/drivers/acpi/executer/exstore.c index 3f020c0e2b95..0456405ba019 100644 --- a/drivers/acpi/executer/exstore.c +++ b/drivers/acpi/executer/exstore.c @@ -82,7 +82,7 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc, { u32 i; - ACPI_FUNCTION_TRACE_PTR("ex_do_debug_object", source_desc); + ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc); ACPI_DEBUG_PRINT_RAW((ACPI_DB_DEBUG_OBJECT, "[ACPI Debug] %*s", level, " ")); @@ -245,7 +245,7 @@ acpi_ex_store(union acpi_operand_object *source_desc, acpi_status status = AE_OK; union acpi_operand_object *ref_desc = dest_desc; - ACPI_FUNCTION_TRACE_PTR("ex_store", dest_desc); + ACPI_FUNCTION_TRACE_PTR(ex_store, dest_desc); /* Validate parameters */ @@ -297,7 +297,7 @@ acpi_ex_store(union acpi_operand_object *source_desc, ACPI_DUMP_STACK_ENTRY(source_desc); ACPI_DUMP_STACK_ENTRY(dest_desc); - ACPI_DUMP_OPERANDS(&dest_desc, ACPI_IMODE_EXECUTE, "ex_store", + ACPI_DUMP_OPERANDS(&dest_desc, ACPI_IMODE_EXECUTE, "ExStore", 2, "Target is not a Reference or Constant object"); @@ -396,7 +396,7 @@ acpi_ex_store_object_to_index(union acpi_operand_object *source_desc, u8 value = 0; u32 i; - ACPI_FUNCTION_TRACE("ex_store_object_to_index"); + ACPI_FUNCTION_TRACE(ex_store_object_to_index); /* * Destination must be a reference pointer, and @@ -423,6 +423,7 @@ acpi_ex_store_object_to_index(union acpi_operand_object *source_desc, } if (obj_desc) { + /* Decrement reference count by the ref count of the parent package */ for (i = 0; i < ((union acpi_operand_object *) @@ -502,8 +503,7 @@ acpi_ex_store_object_to_index(union acpi_operand_object *source_desc, break; default: - ACPI_ERROR((AE_INFO, - "Target is not a Package or buffer_field")); + ACPI_ERROR((AE_INFO, "Target is not a Package or BufferField")); status = AE_AML_OPERAND_TYPE; break; } @@ -548,7 +548,7 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc, union acpi_operand_object *new_desc; acpi_object_type target_type; - ACPI_FUNCTION_TRACE_PTR("ex_store_object_to_node", source_desc); + ACPI_FUNCTION_TRACE_PTR(ex_store_object_to_node, source_desc); /* Get current type of the node, and object attached to Node */ @@ -572,6 +572,7 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc, /* If no implicit conversion, drop into the default case below */ if ((!implicit_conversion) || (walk_state->opcode == AML_COPY_OP)) { + /* Force execution of default (no implicit conversion) */ target_type = ACPI_TYPE_ANY; diff --git a/drivers/acpi/executer/exstoren.c b/drivers/acpi/executer/exstoren.c index 42967baf760d..591aaf0e18b3 100644 --- a/drivers/acpi/executer/exstoren.c +++ b/drivers/acpi/executer/exstoren.c @@ -72,7 +72,7 @@ acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr, union acpi_operand_object *source_desc = *source_desc_ptr; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ex_resolve_object"); + ACPI_FUNCTION_TRACE(ex_resolve_object); /* Ensure we have a Target that can be stored to */ @@ -97,6 +97,7 @@ acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr, */ if (ACPI_GET_OBJECT_TYPE(source_desc) == ACPI_TYPE_LOCAL_REFERENCE) { + /* Resolve a reference object first */ status = @@ -121,6 +122,7 @@ acpi_ex_resolve_object(union acpi_operand_object **source_desc_ptr, !((ACPI_GET_OBJECT_TYPE(source_desc) == ACPI_TYPE_LOCAL_REFERENCE) && (source_desc->reference.opcode == AML_LOAD_OP))) { + /* Conversion successful but still not a valid type */ ACPI_ERROR((AE_INFO, @@ -199,7 +201,7 @@ acpi_ex_store_object_to_object(union acpi_operand_object *source_desc, union acpi_operand_object *actual_src_desc; acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE_PTR("ex_store_object_to_object", source_desc); + ACPI_FUNCTION_TRACE_PTR(ex_store_object_to_object, source_desc); actual_src_desc = source_desc; if (!dest_desc) { @@ -289,6 +291,7 @@ acpi_ex_store_object_to_object(union acpi_operand_object *source_desc, } if (actual_src_desc != source_desc) { + /* Delete the intermediate (temporary) source object */ acpi_ut_remove_reference(actual_src_desc); diff --git a/drivers/acpi/executer/exstorob.c b/drivers/acpi/executer/exstorob.c index 6ab707087750..99ebe5adfcda 100644 --- a/drivers/acpi/executer/exstorob.c +++ b/drivers/acpi/executer/exstorob.c @@ -67,7 +67,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, u32 length; u8 *buffer; - ACPI_FUNCTION_TRACE_PTR("ex_store_buffer_to_buffer", source_desc); + ACPI_FUNCTION_TRACE_PTR(ex_store_buffer_to_buffer, source_desc); /* We know that source_desc is a buffer by now */ @@ -80,7 +80,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, */ if ((target_desc->buffer.length == 0) || (target_desc->common.flags & AOPOBJ_STATIC_POINTER)) { - target_desc->buffer.pointer = ACPI_MEM_ALLOCATE(length); + target_desc->buffer.pointer = ACPI_ALLOCATE(length); if (!target_desc->buffer.pointer) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -91,6 +91,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, /* Copy source buffer to target buffer */ if (length <= target_desc->buffer.length) { + /* Clear existing buffer and copy in the new one */ ACPI_MEMSET(target_desc->buffer.pointer, 0, @@ -102,7 +103,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, * NOTE: ACPI versions up to 3.0 specified that the buffer must be * truncated if the string is smaller than the buffer. However, "other" * implementations of ACPI never did this and thus became the defacto - * standard. ACPi 3.0_a changes this behavior such that the buffer + * standard. ACPI 3.0_a changes this behavior such that the buffer * is no longer truncated. */ @@ -113,6 +114,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, * copy must not truncate the original buffer. */ if (original_src_type == ACPI_TYPE_STRING) { + /* Set the new length of the target */ target_desc->buffer.length = length; @@ -156,7 +158,7 @@ acpi_ex_store_string_to_string(union acpi_operand_object *source_desc, u32 length; u8 *buffer; - ACPI_FUNCTION_TRACE_PTR("ex_store_string_to_string", source_desc); + ACPI_FUNCTION_TRACE_PTR(ex_store_string_to_string, source_desc); /* We know that source_desc is a string by now */ @@ -183,13 +185,14 @@ acpi_ex_store_string_to_string(union acpi_operand_object *source_desc, */ if (target_desc->string.pointer && (!(target_desc->common.flags & AOPOBJ_STATIC_POINTER))) { + /* Only free if not a pointer into the DSDT */ - ACPI_MEM_FREE(target_desc->string.pointer); + ACPI_FREE(target_desc->string.pointer); } - target_desc->string.pointer = ACPI_MEM_CALLOCATE((acpi_size) - length + 1); + target_desc->string.pointer = ACPI_ALLOCATE_ZEROED((acpi_size) + length + 1); if (!target_desc->string.pointer) { return_ACPI_STATUS(AE_NO_MEMORY); } diff --git a/drivers/acpi/executer/exsystem.c b/drivers/acpi/executer/exsystem.c index ea9144f42e1f..52beee3674a0 100644 --- a/drivers/acpi/executer/exsystem.c +++ b/drivers/acpi/executer/exsystem.c @@ -68,7 +68,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_handle semaphore, u16 timeout) acpi_status status; acpi_status status2; - ACPI_FUNCTION_TRACE("ex_system_wait_semaphore"); + ACPI_FUNCTION_TRACE(ex_system_wait_semaphore); status = acpi_os_wait_semaphore(semaphore, 1, 0); if (ACPI_SUCCESS(status)) { @@ -76,6 +76,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_handle semaphore, u16 timeout) } if (status == AE_TIME) { + /* We must wait, so unlock the interpreter */ acpi_ex_exit_interpreter(); @@ -90,6 +91,7 @@ acpi_status acpi_ex_system_wait_semaphore(acpi_handle semaphore, u16 timeout) status2 = acpi_ex_enter_interpreter(); if (ACPI_FAILURE(status2)) { + /* Report fatal error, could not acquire interpreter */ return_ACPI_STATUS(status2); @@ -191,7 +193,7 @@ acpi_ex_system_acquire_mutex(union acpi_operand_object * time_desc, { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE_PTR("ex_system_acquire_mutex", obj_desc); + ACPI_FUNCTION_TRACE_PTR(ex_system_acquire_mutex, obj_desc); if (!obj_desc) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -229,7 +231,7 @@ acpi_status acpi_ex_system_release_mutex(union acpi_operand_object *obj_desc) { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ex_system_release_mutex"); + ACPI_FUNCTION_TRACE(ex_system_release_mutex); if (!obj_desc) { return_ACPI_STATUS(AE_BAD_PARAMETER); @@ -263,7 +265,7 @@ acpi_status acpi_ex_system_signal_event(union acpi_operand_object *obj_desc) { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ex_system_signal_event"); + ACPI_FUNCTION_TRACE(ex_system_signal_event); if (obj_desc) { status = acpi_os_signal_semaphore(obj_desc->event.semaphore, 1); @@ -293,7 +295,7 @@ acpi_ex_system_wait_event(union acpi_operand_object *time_desc, { acpi_status status = AE_OK; - ACPI_FUNCTION_TRACE("ex_system_wait_event"); + ACPI_FUNCTION_TRACE(ex_system_wait_event); if (obj_desc) { status = diff --git a/drivers/acpi/executer/exutils.c b/drivers/acpi/executer/exutils.c index f73a61aeb7ec..982c8b65876f 100644 --- a/drivers/acpi/executer/exutils.c +++ b/drivers/acpi/executer/exutils.c @@ -87,9 +87,9 @@ acpi_status acpi_ex_enter_interpreter(void) { acpi_status status; - ACPI_FUNCTION_TRACE("ex_enter_interpreter"); + ACPI_FUNCTION_TRACE(ex_enter_interpreter); - status = acpi_ut_acquire_mutex(ACPI_MTX_EXECUTE); + status = acpi_ut_acquire_mutex(ACPI_MTX_INTERPRETER); if (ACPI_FAILURE(status)) { ACPI_ERROR((AE_INFO, "Could not acquire interpreter mutex")); } @@ -123,9 +123,9 @@ void acpi_ex_exit_interpreter(void) { acpi_status status; - ACPI_FUNCTION_TRACE("ex_exit_interpreter"); + ACPI_FUNCTION_TRACE(ex_exit_interpreter); - status = acpi_ut_release_mutex(ACPI_MTX_EXECUTE); + status = acpi_ut_release_mutex(ACPI_MTX_INTERPRETER); if (ACPI_FAILURE(status)) { ACPI_ERROR((AE_INFO, "Could not release interpreter mutex")); } @@ -189,11 +189,12 @@ u8 acpi_ex_acquire_global_lock(u32 field_flags) u8 locked = FALSE; acpi_status status; - ACPI_FUNCTION_TRACE("ex_acquire_global_lock"); + ACPI_FUNCTION_TRACE(ex_acquire_global_lock); /* Only attempt lock if the always_lock bit is set */ if (field_flags & AML_FIELD_LOCK_RULE_MASK) { + /* We should attempt to get the lock, wait forever */ status = acpi_ev_acquire_global_lock(ACPI_WAIT_FOREVER); @@ -225,15 +226,17 @@ void acpi_ex_release_global_lock(u8 locked_by_me) { acpi_status status; - ACPI_FUNCTION_TRACE("ex_release_global_lock"); + ACPI_FUNCTION_TRACE(ex_release_global_lock); /* Only attempt unlock if the caller locked it */ if (locked_by_me) { + /* OK, now release the lock */ status = acpi_ev_release_global_lock(); if (ACPI_FAILURE(status)) { + /* Report the error, but there isn't much else we can do */ ACPI_EXCEPTION((AE_INFO, status, @@ -263,7 +266,7 @@ static u32 acpi_ex_digits_needed(acpi_integer value, u32 base) u32 num_digits; acpi_integer current_value; - ACPI_FUNCTION_TRACE("ex_digits_needed"); + ACPI_FUNCTION_TRACE(ex_digits_needed); /* acpi_integer is unsigned, so we don't worry about a '-' prefix */ |
