diff options
Diffstat (limited to 'drivers')
26 files changed, 449 insertions, 322 deletions
diff --git a/drivers/acpi/dispatcher/dsinit.c b/drivers/acpi/dispatcher/dsinit.c index 8693c704aea6..4fa80abfe6c0 100644 --- a/drivers/acpi/dispatcher/dsinit.c +++ b/drivers/acpi/dispatcher/dsinit.c @@ -118,14 +118,6 @@ acpi_ds_init_one_object(acpi_handle obj_handle, case ACPI_TYPE_METHOD: /* - * Print a dot for each method unless we are going to print - * the entire pathname - */ - if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) { - ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, ".")); - } - - /* * Set the execution data width (32 or 64) based upon the * revision number of the parent ACPI table. * TBD: This is really for possible future support of integer width @@ -134,6 +126,21 @@ acpi_ds_init_one_object(acpi_handle obj_handle, if (info->table_desc->pointer->revision == 1) { node->flags |= ANOBJ_DATA_WIDTH_32; } +#ifdef ACPI_INIT_PARSE_METHODS + /* + * Note 11/2005: Removed this code to parse all methods during table + * load because it causes problems if there are any errors during the + * parse. Also, it seems like overkill and we probably don't want to + * abort a table load because of an issue with a single method. + */ + + /* + * Print a dot for each method unless we are going to print + * the entire pathname + */ + if (!(acpi_dbg_level & ACPI_LV_INIT_NAMES)) { + ACPI_DEBUG_PRINT_RAW((ACPI_DB_INIT, ".")); + } /* * Always parse methods to detect errors, we will delete @@ -149,7 +156,7 @@ acpi_ds_init_one_object(acpi_handle obj_handle, /* This parse failed, but we will continue parsing more methods */ } - +#endif info->method_count++; break; diff --git a/drivers/acpi/dispatcher/dswload.c b/drivers/acpi/dispatcher/dswload.c index 411731261c29..89d318cbc8a3 100644 --- a/drivers/acpi/dispatcher/dswload.c +++ b/drivers/acpi/dispatcher/dswload.c @@ -311,7 +311,7 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, op->named.name = node->name.integer; #if (defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)) - op->named.path = (u8 *) path; + op->named.path = ACPI_CAST_PTR(u8, path); #endif /* diff --git a/drivers/acpi/executer/exconvrt.c b/drivers/acpi/executer/exconvrt.c index 04e5194989a6..fa9e75d4ec65 100644 --- a/drivers/acpi/executer/exconvrt.c +++ b/drivers/acpi/executer/exconvrt.c @@ -504,18 +504,12 @@ acpi_ex_convert_to_string(union acpi_operand_object * obj_desc, } /* - * Perform the conversion. + * Create a new string object and string buffer * (-1 because of extra separator included in string_length from above) */ - string_length--; - if (string_length > ACPI_MAX_STRING_CONVERSION) { /* ACPI limit */ - return_ACPI_STATUS(AE_AML_STRING_LIMIT); - } - - /* Create a new string object and string buffer */ - return_desc = - acpi_ut_create_string_object((acpi_size) string_length); + acpi_ut_create_string_object((acpi_size) + (string_length - 1)); if (!return_desc) { return_ACPI_STATUS(AE_NO_MEMORY); } diff --git a/drivers/acpi/executer/exdump.c b/drivers/acpi/executer/exdump.c index 5a4cca171af6..17c79cd91b31 100644 --- a/drivers/acpi/executer/exdump.c +++ b/drivers/acpi/executer/exdump.c @@ -117,12 +117,13 @@ static struct acpi_exdump_info acpi_ex_dump_event[2] = { {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(event.semaphore), "Semaphore"} }; -static struct acpi_exdump_info acpi_ex_dump_method[7] = { +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.concurrency), "Concurrency"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.semaphore), "Semaphore"}, {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.owner_id), "Owner Id"}, + {ACPI_EXD_UINT8, ACPI_EXD_OFFSET(method.thread_count), "Thread Count"}, {ACPI_EXD_UINT32, ACPI_EXD_OFFSET(method.aml_length), "Aml Length"}, {ACPI_EXD_POINTER, ACPI_EXD_OFFSET(method.aml_start), "Aml Start"} }; @@ -339,7 +340,7 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc, count = info->offset; while (count) { - target = ((u8 *) obj_desc) + info->offset; + target = ACPI_ADD_PTR(u8, obj_desc, info->offset); name = info->name; switch (info->opcode) { @@ -360,20 +361,19 @@ acpi_ex_dump_object(union acpi_operand_object *obj_desc, case ACPI_EXD_UINT16: acpi_os_printf("%20s : %4.4X\n", name, - *ACPI_CAST_PTR(u16, target)); + ACPI_GET16(target)); break; case ACPI_EXD_UINT32: acpi_os_printf("%20s : %8.8X\n", name, - *ACPI_CAST_PTR(u32, target)); + ACPI_GET32(target)); break; case ACPI_EXD_UINT64: acpi_os_printf("%20s : %8.8X%8.8X\n", "Value", - ACPI_FORMAT_UINT64(*ACPI_CAST_PTR - (u64, target))); + ACPI_FORMAT_UINT64(ACPI_GET64(target))); break; case ACPI_EXD_POINTER: @@ -969,7 +969,8 @@ acpi_ex_dump_package_obj(union acpi_operand_object *obj_desc, acpi_os_printf("[Buffer] Length %.2X = ", obj_desc->buffer.length); if (obj_desc->buffer.length) { - acpi_ut_dump_buffer((u8 *) obj_desc->buffer.pointer, + acpi_ut_dump_buffer(ACPI_CAST_PTR + (u8, obj_desc->buffer.pointer), obj_desc->buffer.length, DB_DWORD_DISPLAY, _COMPONENT); } else { diff --git a/drivers/acpi/executer/exmisc.c b/drivers/acpi/executer/exmisc.c index 00a25f8188f4..0778bff632bf 100644 --- a/drivers/acpi/executer/exmisc.c +++ b/drivers/acpi/executer/exmisc.c @@ -205,11 +205,9 @@ acpi_ex_concat_template(union acpi_operand_object *operand0, ACPI_MEMCPY(new_buf, operand0->buffer.pointer, length0); ACPI_MEMCPY(new_buf + length0, operand1->buffer.pointer, length1); - /* Compute the new checksum */ + /* Set the end_tag checksum to zero, means "ignore checksum" */ - new_buf[return_desc->buffer.length - 1] = - acpi_ut_generate_checksum(return_desc->buffer.pointer, - (return_desc->buffer.length - 1)); + new_buf[return_desc->buffer.length - 1] = 0; /* Return the completed resource template */ @@ -242,7 +240,6 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0, union acpi_operand_object *return_desc; char *new_buf; acpi_status status; - acpi_size new_length; ACPI_FUNCTION_TRACE("ex_do_concatenate"); @@ -269,7 +266,7 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0, break; default: - ACPI_REPORT_ERROR(("Concat - invalid obj type: %X\n", + ACPI_REPORT_ERROR(("Concatanate - invalid object type: %X\n", ACPI_GET_OBJECT_TYPE(operand0))); status = AE_AML_INTERNAL; } @@ -309,8 +306,7 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0, /* Copy the first integer, LSB first */ - ACPI_MEMCPY(new_buf, - &operand0->integer.value, + ACPI_MEMCPY(new_buf, &operand0->integer.value, acpi_gbl_integer_byte_width); /* Copy the second integer (LSB first) after the first */ @@ -324,14 +320,11 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0, /* Result of two Strings is a String */ - new_length = (acpi_size) operand0->string.length + - (acpi_size) local_operand1->string.length; - if (new_length > ACPI_MAX_STRING_CONVERSION) { - status = AE_AML_STRING_LIMIT; - goto cleanup; - } - - return_desc = acpi_ut_create_string_object(new_length); + return_desc = acpi_ut_create_string_object((acpi_size) + (operand0->string. + length + + local_operand1-> + string.length)); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; @@ -351,11 +344,10 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0, /* Result of two Buffers is a Buffer */ return_desc = acpi_ut_create_buffer_object((acpi_size) - operand0->buffer. - length + - (acpi_size) - local_operand1-> - buffer.length); + (operand0->buffer. + length + + local_operand1-> + buffer.length)); if (!return_desc) { status = AE_NO_MEMORY; goto cleanup; @@ -365,8 +357,8 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0, /* Concatenate the buffers */ - ACPI_MEMCPY(new_buf, - operand0->buffer.pointer, operand0->buffer.length); + ACPI_MEMCPY(new_buf, operand0->buffer.pointer, + operand0->buffer.length); ACPI_MEMCPY(new_buf + operand0->buffer.length, local_operand1->buffer.pointer, local_operand1->buffer.length); diff --git a/drivers/acpi/executer/exnames.c b/drivers/acpi/executer/exnames.c index dff41121a304..7bb5e17b5680 100644 --- a/drivers/acpi/executer/exnames.c +++ b/drivers/acpi/executer/exnames.c @@ -216,7 +216,7 @@ static acpi_status acpi_ex_name_segment(u8 ** in_aml_address, char *name_string) *aml_address, aml_address)); } - *in_aml_address = (u8 *) aml_address; + *in_aml_address = ACPI_CAST_PTR(u8, aml_address); return_ACPI_STATUS(status); } diff --git a/drivers/acpi/executer/exoparg2.c b/drivers/acpi/executer/exoparg2.c index 8d70c6beef00..d8472842c1fd 100644 --- a/drivers/acpi/executer/exoparg2.c +++ b/drivers/acpi/executer/exoparg2.c @@ -344,10 +344,6 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state) (length < operand[1]->integer.value) && (operand[0]->buffer.pointer[length])) { length++; - if (length > ACPI_MAX_STRING_CONVERSION) { - status = AE_AML_STRING_LIMIT; - goto cleanup; - } } /* Allocate a new string object */ @@ -358,8 +354,10 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state) goto cleanup; } - /* Copy the raw buffer data with no transform. NULL terminated already */ - + /* + * Copy the raw buffer data with no transform. + * (NULL terminated already) + */ ACPI_MEMCPY(return_desc->string.pointer, operand[0]->buffer.pointer, length); break; diff --git a/drivers/acpi/executer/exregion.c b/drivers/acpi/executer/exregion.c index 1897379b5f90..80118be3f544 100644 --- a/drivers/acpi/executer/exregion.c +++ b/drivers/acpi/executer/exregion.c @@ -199,20 +199,20 @@ acpi_ex_system_memory_space_handler(u32 function, *value = 0; switch (bit_width) { case 8: - *value = (acpi_integer) * ((u8 *) logical_addr_ptr); + *value = (acpi_integer) ACPI_GET8(logical_addr_ptr); break; case 16: - *value = (acpi_integer) * ((u16 *) logical_addr_ptr); + *value = (acpi_integer) ACPI_GET16(logical_addr_ptr); break; case 32: - *value = (acpi_integer) * ((u32 *) logical_addr_ptr); + *value = (acpi_integer) ACPI_GET32(logical_addr_ptr); break; #if ACPI_MACHINE_WIDTH != 16 case 64: - *value = (acpi_integer) * ((u64 *) logical_addr_ptr); + *value = (acpi_integer) ACPI_GET64(logical_addr_ptr); break; #endif default: @@ -225,20 +225,20 @@ acpi_ex_system_memory_space_handler(u32 function, switch (bit_width) { case 8: - *(u8 *) logical_addr_ptr = (u8) * value; + ACPI_SET8(logical_addr_ptr) = (u8) * value; break; case 16: - *(u16 *) logical_addr_ptr = (u16) * value; + ACPI_SET16(logical_addr_ptr) = (u16) * value; break; case 32: - *(u32 *) logical_addr_ptr = (u32) * value; + ACPI_SET32(logical_addr_ptr) = (u32) * value; break; #if ACPI_MACHINE_WIDTH != 16 case 64: - *(u64 *) logical_addr_ptr = (u64) * value; + ACPI_SET64(logical_addr_ptr) = (u64) * value; break; #endif diff --git a/drivers/acpi/executer/exstorob.c b/drivers/acpi/executer/exstorob.c index c4ff654a6697..855db7130751 100644 --- a/drivers/acpi/executer/exstorob.c +++ b/drivers/acpi/executer/exstorob.c @@ -71,7 +71,7 @@ acpi_ex_store_buffer_to_buffer(union acpi_operand_object *source_desc, /* We know that source_desc is a buffer by now */ - buffer = (u8 *) source_desc->buffer.pointer; + buffer = ACPI_CAST_PTR(u8, source_desc->buffer.pointer); length = source_desc->buffer.length; /* @@ -160,7 +160,7 @@ acpi_ex_store_string_to_string(union acpi_operand_object *source_desc, /* We know that source_desc is a string by now */ - buffer = (u8 *) source_desc->string.pointer; + buffer = ACPI_CAST_PTR(u8, source_desc->string.pointer); length = source_desc->string.length; /* diff --git a/drivers/acpi/parser/psargs.c b/drivers/acpi/parser/psargs.c index 562d0f822ab1..6eae35febccd 100644 --- a/drivers/acpi/parser/psargs.c +++ b/drivers/acpi/parser/psargs.c @@ -62,61 +62,51 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state * * PARAMETERS: parser_state - Current parser state object * - * RETURN: Decoded package length. On completion, the AML pointer points + * RETURN: Decoded package length. On completion, the AML pointer points * past the length byte or bytes. * - * DESCRIPTION: Decode and return a package length field + * DESCRIPTION: Decode and return a package length field. + * Note: Largest package length is 28 bits, from ACPI specification * ******************************************************************************/ static u32 acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state) { - u32 encoded_length; - u32 length = 0; + u8 *aml = parser_state->aml; + u32 package_length = 0; + acpi_native_uint byte_count; + u8 byte_zero_mask = 0x3F; /* Default [0:5] */ ACPI_FUNCTION_TRACE("ps_get_next_package_length"); - encoded_length = (u32) ACPI_GET8(parser_state->aml); - parser_state->aml++; - - switch (encoded_length >> 6) { /* bits 6-7 contain encoding scheme */ - case 0: /* 1-byte encoding (bits 0-5) */ - - length = (encoded_length & 0x3F); - break; - - case 1: /* 2-byte encoding (next byte + bits 0-3) */ - - length = ((ACPI_GET8(parser_state->aml) << 04) | - (encoded_length & 0x0F)); - parser_state->aml++; - break; - - case 2: /* 3-byte encoding (next 2 bytes + bits 0-3) */ - - length = ((ACPI_GET8(parser_state->aml + 1) << 12) | - (ACPI_GET8(parser_state->aml) << 04) | - (encoded_length & 0x0F)); - parser_state->aml += 2; - break; - - case 3: /* 4-byte encoding (next 3 bytes + bits 0-3) */ + /* + * Byte 0 bits [6:7] contain the number of additional bytes + * used to encode the package length, either 0,1,2, or 3 + */ + byte_count = (aml[0] >> 6); + parser_state->aml += (byte_count + 1); - length = ((ACPI_GET8(parser_state->aml + 2) << 20) | - (ACPI_GET8(parser_state->aml + 1) << 12) | - (ACPI_GET8(parser_state->aml) << 04) | - (encoded_length & 0x0F)); - parser_state->aml += 3; - break; + /* Get bytes 3, 2, 1 as needed */ - default: + while (byte_count) { + /* + * Final bit positions for the package length bytes: + * Byte3->[20:27] + * Byte2->[12:19] + * Byte1->[04:11] + * Byte0->[00:03] + */ + package_length |= (aml[byte_count] << ((byte_count << 3) - 4)); - /* Can't get here, only 2 bits / 4 cases */ - break; + byte_zero_mask = 0x0F; /* Use bits [0:3] of byte 0 */ + byte_count--; } - return_UINT32(length); + /* Byte 0 is a special case, either bits [0:3] or [0:5] are used */ + + package_length |= (aml[0] & byte_zero_mask); + return_UINT32(package_length); } /******************************************************************************* @@ -135,16 +125,15 @@ acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state) u8 *acpi_ps_get_next_package_end(struct acpi_parse_state *parser_state) { u8 *start = parser_state->aml; - acpi_native_uint length; + u32 package_length; ACPI_FUNCTION_TRACE("ps_get_next_package_end"); - /* Function below changes parser_state->Aml */ + /* Function below updates parser_state->Aml */ - length = - (acpi_native_uint) acpi_ps_get_next_package_length(parser_state); + package_length = acpi_ps_get_next_package_length(parser_state); - return_PTR(start + length); /* end of package */ + return_PTR(start + package_length); /* end of package */ } /******************************************************************************* @@ -169,17 +158,15 @@ char *acpi_ps_get_next_namestring(struct acpi_parse_state *parser_state) ACPI_FUNCTION_TRACE("ps_get_next_namestring"); - /* Handle multiple prefix characters */ - - while (acpi_ps_is_prefix_char(ACPI_GET8(end))) { - /* Include prefix '\\' or '^' */ + /* Point past any namestring prefix characters (backslash or carat) */ + while (acpi_ps_is_prefix_char(*end)) { end++; } - /* Decode the path */ + /* Decode the path prefix character */ - switch (ACPI_GET8(end)) { + switch (*end) { case 0: /* null_name */ @@ -199,9 +186,9 @@ char *acpi_ps_get_next_namestring(struct acpi_parse_state *parser_state) case AML_MULTI_NAME_PREFIX_OP: - /* Multiple name segments, 4 chars each */ + /* Multiple name segments, 4 chars each, count in next byte */ - end += 2 + ((acpi_size) ACPI_GET8(end + 1) * ACPI_NAME_SIZE); + end += 2 + (*(end + 1) * ACPI_NAME_SIZE); break; default: @@ -212,7 +199,7 @@ char *acpi_ps_get_next_namestring(struct acpi_parse_state *parser_state) break; } - parser_state->aml = (u8 *) end; + parser_state->aml = end; return_PTR((char *)start); } @@ -342,7 +329,6 @@ acpi_ps_get_next_namepath(struct acpi_walk_state *walk_state, ("search_node %p start_node %p return_node %p\n", scope_info.scope.node, parser_state->start_node, node); - } else { /* * We got a NOT_FOUND during table load or we encountered @@ -382,59 +368,63 @@ void acpi_ps_get_next_simple_arg(struct acpi_parse_state *parser_state, u32 arg_type, union acpi_parse_object *arg) { + u32 length; + u16 opcode; + u8 *aml = parser_state->aml; ACPI_FUNCTION_TRACE_U32("ps_get_next_simple_arg", arg_type); switch (arg_type) { case ARGP_BYTEDATA: - acpi_ps_init_op(arg, AML_BYTE_OP); - arg->common.value.integer = (u32) ACPI_GET8(parser_state->aml); - parser_state->aml++; + /* Get 1 byte from the AML stream */ + + opcode = AML_BYTE_OP; + arg->common.value.integer = (acpi_integer) * aml; + length = 1; break; case ARGP_WORDDATA: - acpi_ps_init_op(arg, AML_WORD_OP); - /* Get 2 bytes from the AML stream */ - ACPI_MOVE_16_TO_32(&arg->common.value.integer, - parser_state->aml); - parser_state->aml += 2; + opcode = AML_WORD_OP; + ACPI_MOVE_16_TO_64(&arg->common.value.integer, aml); + length = 2; break; case ARGP_DWORDDATA: - acpi_ps_init_op(arg, AML_DWORD_OP); - /* Get 4 bytes from the AML stream */ - ACPI_MOVE_32_TO_32(&arg->common.value.integer, - parser_state->aml); - parser_state->aml += 4; + opcode = AML_DWORD_OP; + ACPI_MOVE_32_TO_64(&arg->common.value.integer, aml); + length = 4; break; case ARGP_QWORDDATA: - acpi_ps_init_op(arg, AML_QWORD_OP); - /* Get 8 bytes from the AML stream */ - ACPI_MOVE_64_TO_64(&arg->common.value.integer, - parser_state->aml); - parser_state->aml += 8; + opcode = AML_QWORD_OP; + ACPI_MOVE_64_TO_64(&arg->common.value.integer, aml); + length = 8; break; case ARGP_CHARLIST: - acpi_ps_init_op(arg, AML_STRING_OP); - arg->common.value.string = (char *)parser_state->aml; + /* Get a pointer to the string, point past the string */ + + opcode = AML_STRING_OP; + arg->common.value.string = ACPI_CAST_PTR(char, aml); - while (ACPI_GET8(parser_state->aml) != '\0') { - parser_state->aml++; + /* Find the null terminator */ + + length = 0; + while (aml[length]) { + length++; } - parser_state->aml++; + length++; break; case ARGP_NAME: @@ -443,14 +433,16 @@ acpi_ps_get_next_simple_arg(struct acpi_parse_state *parser_state, acpi_ps_init_op(arg, AML_INT_NAMEPATH_OP); arg->common.value.name = acpi_ps_get_next_namestring(parser_state); - break; + return_VOID; default: ACPI_REPORT_ERROR(("Invalid arg_type %X\n", arg_type)); - break; + return_VOID; } + acpi_ps_init_op(arg, opcode); + parser_state->aml += length; return_VOID; } @@ -540,7 +532,7 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state * access_type is first operand, access_attribute is second */ field->common.value.integer = - (ACPI_GET8(parser_state->aml) << 8); + (((u32) ACPI_GET8(parser_state->aml) << 8)); parser_state->aml++; field->common.value.integer |= ACPI_GET8(parser_state->aml); parser_state->aml++; diff --git a/drivers/acpi/parser/psparse.c b/drivers/acpi/parser/psparse.c index 76d4d640d83c..7cfa7eb0dfc7 100644 --- a/drivers/acpi/parser/psparse.c +++ b/drivers/acpi/parser/psparse.c @@ -503,22 +503,23 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state) } else if (status == AE_CTRL_TERMINATE) { status = AE_OK; } else if ((status != AE_OK) && (walk_state->method_desc)) { - ACPI_REPORT_METHOD_ERROR("Method execution failed", - walk_state->method_node, NULL, - status); + /* Either the method parse or actual execution failed */ - /* Ensure proper cleanup */ - - walk_state->parse_flags |= ACPI_PARSE_EXECUTE; + ACPI_REPORT_METHOD_ERROR + ("Method parse/execution failed", + walk_state->method_node, NULL, status); /* Check for possible multi-thread reentrancy problem */ if ((status == AE_ALREADY_EXISTS) && (!walk_state->method_desc->method.semaphore)) { /* - * This method is marked not_serialized, but it tried to create + * Method tried to create an object twice. The probable cause is + * that the method cannot handle reentrancy. + * + * The method is marked not_serialized, but it tried to create * a named object, causing the second thread entrance to fail. - * We will workaround this by marking the method permanently + * Workaround this problem by marking the method permanently * as Serialized. */ walk_state->method_desc->method.method_flags |= @@ -536,15 +537,22 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state) acpi_ds_scope_stack_clear(walk_state); /* - * If we just returned from the execution of a control method, - * there's lots of cleanup to do + * If we just returned from the execution of a control method or if we + * encountered an error during the method parse phase, there's lots of + * cleanup to do */ - if ((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) == - ACPI_PARSE_EXECUTE) { + if (((walk_state->parse_flags & ACPI_PARSE_MODE_MASK) == + ACPI_PARSE_EXECUTE) || (ACPI_FAILURE(status))) { if (walk_state->method_desc) { /* Decrement the thread count on the method parse tree */ - walk_state->method_desc->method.thread_count--; + if (walk_state->method_desc->method. + thread_count) { + walk_state->method_desc->method. + thread_count--; + } else { + ACPI_REPORT_ERROR(("Invalid zero thread count in method\n")); + } } acpi_ds_terminate_control_method(walk_state); @@ -553,7 +561,6 @@ acpi_status acpi_ps_parse_aml(struct acpi_walk_state *walk_state) /* Delete this walk state and all linked control states */ acpi_ps_cleanup_scope(&walk_state->parser_state); - previous_walk_state = walk_state; ACPI_DEBUG_PRINT((ACPI_DB_PARSE, diff --git a/drivers/acpi/parser/psxface.c b/drivers/acpi/parser/psxface.c index 4c426f4c6af6..14d544d60867 100644 --- a/drivers/acpi/parser/psxface.c +++ b/drivers/acpi/parser/psxface.c @@ -87,7 +87,7 @@ acpi_debug_trace(char *name, u32 debug_level, u32 debug_layer, u32 flags) /* TBDs: Validate name, allow full path or just nameseg */ - acpi_gbl_trace_method_name = *(u32 *) name; + acpi_gbl_trace_method_name = *ACPI_CAST_PTR(u32, name); acpi_gbl_trace_flags = flags; if (debug_level) { diff --git a/drivers/acpi/resources/rscalc.c b/drivers/acpi/resources/rscalc.c index eca7439ee9da..c2c4d9079c6c 100644 --- a/drivers/acpi/resources/rscalc.c +++ b/drivers/acpi/resources/rscalc.c @@ -300,7 +300,7 @@ acpi_rs_get_aml_length(struct acpi_resource * resource, acpi_size * size_needed) /* Point to the next object */ resource = - ACPI_PTR_ADD(struct acpi_resource, resource, + ACPI_ADD_PTR(struct acpi_resource, resource, resource->length); } @@ -374,8 +374,7 @@ acpi_rs_get_list_length(u8 * aml_buffer, * Get the number of bits set in the 16-bit IRQ mask */ ACPI_MOVE_16_TO_16(&temp16, buffer); - extra_struct_bytes = - acpi_rs_count_set_bits(temp16) * sizeof(u32); + extra_struct_bytes = acpi_rs_count_set_bits(temp16); break; case ACPI_RESOURCE_NAME_DMA: @@ -383,8 +382,7 @@ acpi_rs_get_list_length(u8 * aml_buffer, * DMA Resource: * Get the number of bits set in the 8-bit DMA mask */ - extra_struct_bytes = - acpi_rs_count_set_bits(*buffer) * sizeof(u32); + extra_struct_bytes = acpi_rs_count_set_bits(*buffer); break; case ACPI_RESOURCE_NAME_VENDOR_SMALL: @@ -399,9 +397,9 @@ acpi_rs_get_list_length(u8 * aml_buffer, case ACPI_RESOURCE_NAME_END_TAG: /* - * End Tag: This is the normal exit + * End Tag: This is the normal exit, add size of end_tag */ - *size_needed = buffer_size; + *size_needed = buffer_size + ACPI_RS_SIZE_MIN; return_ACPI_STATUS(AE_OK); case ACPI_RESOURCE_NAME_VENDOR_LARGE: @@ -466,7 +464,7 @@ acpi_rs_get_list_length(u8 * aml_buffer, temp16 = (u16) (acpi_gbl_resource_struct_sizes[resource_index] + extra_struct_bytes); - buffer_size += (u32) ACPI_ALIGN_RESOURCE_SIZE(temp16); + buffer_size += (u32) ACPI_ROUND_UP_TO_NATIVE_WORD(temp16); /* * Point to the next resource within the stream diff --git a/drivers/acpi/resources/rsdump.c b/drivers/acpi/resources/rsdump.c index f617ca80c5a6..cebd890d3db5 100644 --- a/drivers/acpi/resources/rsdump.c +++ b/drivers/acpi/resources/rsdump.c @@ -383,7 +383,7 @@ acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table) while (count) { previous_target = target; - target = ((u8 *) resource) + table->offset; + target = ACPI_ADD_PTR(u8, resource, table->offset); name = table->name; switch (table->opcode) { @@ -410,22 +410,19 @@ acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table) /* Data items, 8/16/32/64 bit */ case ACPI_RSD_UINT8: - acpi_rs_out_integer8(name, *ACPI_CAST_PTR(u8, target)); + acpi_rs_out_integer8(name, ACPI_GET8(target)); break; case ACPI_RSD_UINT16: - acpi_rs_out_integer16(name, - *ACPI_CAST_PTR(u16, target)); + acpi_rs_out_integer16(name, ACPI_GET16(target)); break; case ACPI_RSD_UINT32: - acpi_rs_out_integer32(name, - *ACPI_CAST_PTR(u32, target)); + acpi_rs_out_integer32(name, ACPI_GET32(target)); break; case ACPI_RSD_UINT64: - acpi_rs_out_integer64(name, - *ACPI_CAST_PTR(u64, target)); + acpi_rs_out_integer64(name, ACPI_GET64(target)); break; /* Flags: 1-bit and 2-bit flags supported */ @@ -462,8 +459,8 @@ acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table) * Note: The list length is obtained from the previous table entry */ if (previous_target) { - acpi_rs_dump_byte_list(*ACPI_CAST_PTR - (u16, previous_target), + acpi_rs_dump_byte_list(ACPI_GET16 + (previous_target), target); } break; @@ -634,7 +631,7 @@ void acpi_rs_dump_resource_list(struct acpi_resource *resource_list) /* Point to the next resource structure */ resource_list = - ACPI_PTR_ADD(struct acpi_resource, resource_list, + ACPI_ADD_PTR(struct acpi_resource, resource_list, resource_list->length); /* Exit when END_TAG descriptor is reached */ @@ -675,9 +672,8 @@ void acpi_rs_dump_irq_list(u8 * route_table) count); acpi_rs_dump_descriptor(prt_element, acpi_rs_dump_prt); - prt_element = ACPI_CAST_PTR(struct acpi_pci_routing_table, - ((u8 *) prt_element) + - prt_element->length); + prt_element = ACPI_ADD_PTR(struct acpi_pci_routing_table, + prt_element, prt_element->length); } } diff --git a/drivers/acpi/resources/rslist.c b/drivers/acpi/resources/rslist.c index b83996233c1d..573c06705641 100644 --- a/drivers/acpi/resources/rslist.c +++ b/drivers/acpi/resources/rslist.c @@ -112,7 +112,7 @@ acpi_rs_convert_aml_to_resources(u8 * aml, u32 aml_length, u8 * output_buffer) /* Point to the next structure in the output buffer */ resource = - ACPI_PTR_ADD(struct acpi_resource, resource, + ACPI_ADD_PTR(struct acpi_resource, resource, resource->length); } @@ -201,7 +201,7 @@ acpi_rs_convert_resources_to_aml(struct acpi_resource *resource, /* Point to the next input resource descriptor */ resource = - ACPI_PTR_ADD(struct acpi_resource, resource, + ACPI_ADD_PTR(struct acpi_resource, resource, resource->length); } diff --git a/drivers/acpi/resources/rsmisc.c b/drivers/acpi/resources/rsmisc.c index 16ad3bfbee2a..e1b5aa2af9a5 100644 --- a/drivers/acpi/resources/rsmisc.c +++ b/drivers/acpi/resources/rsmisc.c @@ -104,8 +104,9 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource, * Source is the external AML byte stream buffer, * destination is the internal resource descriptor */ - source = ((u8 *) aml) + info->aml_offset; - destination = ((u8 *) resource) + info->resource_offset; + source = ACPI_ADD_PTR(void, aml, info->aml_offset); + destination = + ACPI_ADD_PTR(void, resource, info->resource_offset); switch (info->opcode) { case ACPI_RSC_INITGET: @@ -129,22 +130,22 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource, /* * Mask and shift the flag bit */ - *((u8 *) destination) = (u8) - ((*((u8 *) source) >> info->value) & 0x01); + ACPI_SET8(destination) = (u8) + ((ACPI_GET8(source) >> info->value) & 0x01); break; case ACPI_RSC_2BITFLAG: /* * Mask and shift the flag bits */ - *((u8 *) destination) = (u8) - ((*((u8 *) source) >> info->value) & 0x03); + ACPI_SET8(destination) = (u8) + ((ACPI_GET8(source) >> info->value) & 0x03); break; case ACPI_RSC_COUNT: - item_count = *((u8 *) source); - *((u8 *) destination) = (u8) item_count; + item_count = ACPI_GET8(source); + ACPI_SET8(destination) = (u8) item_count; resource->length = resource->length + (info->value * (item_count - 1)); @@ -153,7 +154,7 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource, case ACPI_RSC_COUNT16: item_count = aml_resource_length; - *((u16 *) destination) = item_count; + ACPI_SET16(destination) = item_count; resource->length = resource->length + (info->value * (item_count - 1)); @@ -186,9 +187,8 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource, case ACPI_RSC_DATA8: - target = ((char *)resource) + info->value; - ACPI_MEMCPY(destination, source, - *(ACPI_CAST_PTR(u16, target))); + target = ACPI_ADD_PTR(char, resource, info->value); + ACPI_MEMCPY(destination, source, ACPI_GET16(target)); break; case ACPI_RSC_ADDRESS: @@ -217,8 +217,8 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource, * complicated case used by the Interrupt() macro */ target = - ((char *)resource) + info->aml_offset + - (item_count * 4); + ACPI_ADD_PTR(char, resource, + info->aml_offset + (item_count * 4)); resource->length += acpi_rs_get_resource_source(aml_resource_length, @@ -230,15 +230,14 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource, * 8-bit encoded bitmask (DMA macro) */ item_count = - acpi_rs_decode_bitmask(*((u8 *) source), + acpi_rs_decode_bitmask(ACPI_GET8(source), destination); if (item_count) { - resource->length += - resource->length + (item_count - 1); + resource->length += (item_count - 1); } - target = ((char *)resource) + info->value; - *((u8 *) target) = (u8) item_count; + target = ACPI_ADD_PTR(char, resource, info->value); + ACPI_SET8(target) = (u8) item_count; break; case ACPI_RSC_BITMASK16: @@ -250,12 +249,11 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource, item_count = acpi_rs_decode_bitmask(temp16, destination); if (item_count) { - resource->length = - resource->length + (item_count - 1); + resource->length += (item_count - 1); } - target = ((char *)resource) + info->value; - *((u8 *) target) = (u8) item_count; + target = ACPI_ADD_PTR(char, resource, info->value); + ACPI_SET8(target) = (u8) item_count; break; case ACPI_RSC_EXIT_NE: @@ -270,7 +268,7 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource, break; case ACPI_RSC_COMPARE_VALUE: - if (*((u8 *) source) != info->value) { + if (ACPI_GET8(source) != info->value) { goto exit; } break; @@ -349,8 +347,8 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource, * Source is the internal resource descriptor, * destination is the external AML byte stream buffer */ - source = ((u8 *) resource) + info->resource_offset; - destination = ((u8 *) aml) + info->aml_offset; + source = ACPI_ADD_PTR(void, resource, info->resource_offset); + destination = ACPI_ADD_PTR(void, aml, info->aml_offset); switch (info->opcode) { case ACPI_RSC_INITSET: @@ -368,37 +366,38 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource, /* * Clear the flag byte */ - *((u8 *) destination) = 0; + ACPI_SET8(destination) = 0; break; case ACPI_RSC_1BITFLAG: /* * Mask and shift the flag bit */ - *((u8 *) destination) |= (u8) - ((*((u8 *) source) & 0x01) << info->value); + ACPI_SET8(destination) |= (u8) + ((ACPI_GET8(source) & 0x01) << info->value); break; case ACPI_RSC_2BITFLAG: /* * Mask and shift the flag bits */ - *((u8 *) destination) |= (u8) - ((*((u8 *) source) & 0x03) << info->value); + ACPI_SET8(destination) |= (u8) + ((ACPI_GET8(source) & 0x03) << info->value); break; case ACPI_RSC_COUNT: - item_count = *((u8 *) source); - *((u8 *) destination) = (u8) item_count; + item_count = ACPI_GET8(source); + ACPI_SET8(destination) = (u8) item_count; - aml_length = (u16) (aml_length + - (info->value * (item_count - 1))); + aml_length = + (u16) (aml_length + + (info->value * (item_count - 1))); break; case ACPI_RSC_COUNT16: - item_count = *((u16 *) source); + item_count = ACPI_GET16(source); aml_length = (u16) (aml_length + item_count); acpi_rs_set_resource_length(aml_length, aml); break; @@ -453,20 +452,21 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource, /* * 8-bit encoded bitmask (DMA macro) */ - *((u8 *) destination) = (u8) + ACPI_SET8(destination) = (u8) acpi_rs_encode_bitmask(source, - *(((u8 *) resource) + - info->value)); + *ACPI_ADD_PTR(u8, resource, + info->value)); break; case ACPI_RSC_BITMASK16: /* * 16-bit encoded bitmask (IRQ macro) */ - temp16 = - acpi_rs_encode_bitmask(source, - *(((u8 *) resource) + - info->value)); + temp16 = acpi_rs_encode_bitmask(source, + *ACPI_ADD_PTR(u8, + resource, + info-> + value)); ACPI_MOVE_16_TO_16(destination, &temp16); break; @@ -485,9 +485,9 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource, */ switch (COMPARE_OPCODE(info)) { case ACPI_RSC_COMPARE_VALUE: - if (* - ((u8 *) (((u8 *) resource) + - COMPARE_TARGET(info))) != + + if (*ACPI_ADD_PTR(u8, resource, + COMPARE_TARGET(info)) != COMPARE_VALUE(info)) { goto exit; } diff --git a/drivers/acpi/resources/rsutils.c b/drivers/acpi/resources/rsutils.c index a1eac0f1df54..2236a0c90daa 100644 --- a/drivers/acpi/resources/rsutils.c +++ b/drivers/acpi/resources/rsutils.c @@ -152,18 +152,18 @@ acpi_rs_move_data(void *destination, void *source, u16 item_count, u8 move_type) * misaligned memory transfers */ case ACPI_RSC_MOVE16: - ACPI_MOVE_16_TO_16(&((u16 *) destination)[i], - &((u16 *) source)[i]); + ACPI_MOVE_16_TO_16(&ACPI_CAST_PTR(u16, destination)[i], + &ACPI_CAST_PTR(u16, source)[i]); break; case ACPI_RSC_MOVE32: - ACPI_MOVE_32_TO_32(&((u32 *) destination)[i], - &((u32 *) source)[i]); + ACPI_MOVE_32_TO_32(&ACPI_CAST_PTR(u32, destination)[i], + &ACPI_CAST_PTR(u32, source)[i]); break; case ACPI_RSC_MOVE64: - ACPI_MOVE_64_TO_64(&((u64 *) destination)[i], - &((u64 *) source)[i]); + ACPI_MOVE_64_TO_64(&ACPI_CAST_PTR(u64, destination)[i], + &ACPI_CAST_PTR(u64, source)[i]); break; default: @@ -318,7 +318,7 @@ acpi_rs_get_resource_source(acpi_rs_length resource_length, total_length = resource_length + sizeof(struct aml_resource_large_header); - aml_resource_source = ((u8 *) aml) + minimum_length; + aml_resource_source = ACPI_ADD_PTR(u8, aml, minimum_length); /* * resource_source is present if the length of the descriptor is longer than @@ -338,9 +338,9 @@ acpi_rs_get_resource_source(acpi_rs_length resource_length, * String destination pointer is not specified; Set the String * pointer to the end of the current resource_source structure. */ - resource_source->string_ptr = (char *) - ((u8 *) resource_source) + - sizeof(struct acpi_resource_source); + resource_source->string_ptr = + ACPI_ADD_PTR(char, resource_source, + sizeof(struct acpi_resource_source)); } /* @@ -407,7 +407,7 @@ acpi_rs_set_resource_source(union aml_resource * aml, if (resource_source->string_length) { /* Point to the end of the AML descriptor */ - aml_resource_source = ((u8 *) aml) + minimum_length; + aml_resource_source = ACPI_ADD_PTR(u8, aml, minimum_length); /* Copy the resource_source_index */ diff --git a/drivers/acpi/resources/rsxface.c b/drivers/acpi/resources/rsxface.c index 09d250ab9872..50a956b705b0 100644 --- a/drivers/acpi/resources/rsxface.c +++ b/drivers/acpi/resources/rsxface.c @@ -64,6 +64,10 @@ ACPI_MODULE_NAME("rsxface") ACPI_COPY_FIELD(out, in, translation_offset); \ ACPI_COPY_FIELD(out, in, address_length); \ ACPI_COPY_FIELD(out, in, resource_source); +/* Local prototypes */ +static acpi_status +acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context); + /******************************************************************************* * * FUNCTION: acpi_get_irq_routing_table @@ -86,6 +90,7 @@ ACPI_MODULE_NAME("rsxface") * the object indicated by the passed device_handle. * ******************************************************************************/ + acpi_status acpi_get_irq_routing_table(acpi_handle device_handle, struct acpi_buffer *ret_buffer) @@ -222,12 +227,12 @@ EXPORT_SYMBOL(acpi_get_possible_resources); * * FUNCTION: acpi_walk_resources * - * PARAMETERS: device_handle - a handle to the device object for the + * PARAMETERS: device_handle - Handle to the device object for the * device we are querying - * Path - method name of the resources we want + * Name - Method name of the resources we want * (METHOD_NAME__CRS or METHOD_NAME__PRS) - * user_function - called for each resource - * Context - passed to user_function + * user_function - Called for each resource + * Context - Passed to user_function * * RETURN: Status * @@ -239,79 +244,74 @@ EXPORT_SYMBOL(acpi_get_possible_resources); acpi_status acpi_walk_resources(acpi_handle device_handle, - char *path, + char *name, ACPI_WALK_RESOURCE_CALLBACK user_function, void *context) { acpi_status status; - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + struct acpi_buffer buffer; struct acpi_resource *resource; - struct acpi_resource *buffer_end; + struct acpi_resource *resource_end; ACPI_FUNCTION_TRACE("acpi_walk_resources"); - if (!device_handle || - (ACPI_STRNCMP(path, METHOD_NAME__CRS, sizeof(METHOD_NAME__CRS)) && - ACPI_STRNCMP(path, METHOD_NAME__PRS, sizeof(METHOD_NAME__PRS)))) { + /* Parameter validation */ + + if (!device_handle || !user_function || !name || + (ACPI_STRNCMP(name, METHOD_NAME__CRS, sizeof(METHOD_NAME__CRS)) && + ACPI_STRNCMP(name, METHOD_NAME__PRS, sizeof(METHOD_NAME__PRS)))) { return_ACPI_STATUS(AE_BAD_PARAMETER); } - status = acpi_rs_get_method_data(device_handle, path, &buffer); + /* Get the _CRS or _PRS resource list */ + + buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER; + status = acpi_rs_get_method_data(device_handle, name, &buffer); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } - /* Setup pointers */ + /* Buffer now contains the resource list */ - resource = (struct acpi_resource *)buffer.pointer; - buffer_end = ACPI_CAST_PTR(struct acpi_resource, - ((u8 *) buffer.pointer + buffer.length)); + resource = ACPI_CAST_PTR(struct acpi_resource, buffer.pointer); + resource_end = + ACPI_ADD_PTR(struct acpi_resource, buffer.pointer, buffer.length); - /* Walk the resource list */ + /* Walk the resource list until the end_tag is found (or buffer end) */ - for (;;) { - if (!resource || resource->type == ACPI_RESOURCE_TYPE_END_TAG) { + while (resource < resource_end) { + /* Sanity check the resource */ + + if (resource->type > ACPI_RESOURCE_TYPE_MAX) { + status = AE_AML_INVALID_RESOURCE_TYPE; break; } - status = user_function(resource, context); - - switch (status) { - case AE_OK: - case AE_CTRL_DEPTH: + /* Invoke the user function, abort on any error returned */ - /* Just keep going */ + status = user_function(resource, context); + if (ACPI_FAILURE(status)) { + if (status == AE_CTRL_TERMINATE) { + /* This is an OK termination by the user function */ - status = AE_OK; + status = AE_OK; + } break; + } - case AE_CTRL_TERMINATE: - - /* Exit now, with OK stats */ - - status = AE_OK; - goto cleanup; - - default: - - /* All others are valid exceptions */ + /* end_tag indicates end-of-list */ - goto cleanup; + if (resource->type == ACPI_RESOURCE_TYPE_END_TAG) { + break; } /* Get the next resource descriptor */ - resource = ACPI_NEXT_RESOURCE(resource); - - /* Check for end-of-buffer */ - - if (resource >= buffer_end) { - goto cleanup; - } + resource = + ACPI_ADD_PTR(struct acpi_resource, resource, + resource->length); } - cleanup: - - acpi_os_free(buffer.pointer); + ACPI_MEM_FREE(buffer.pointer); return_ACPI_STATUS(status); } @@ -381,6 +381,12 @@ acpi_resource_to_address64(struct acpi_resource *resource, struct acpi_resource_address16 *address16; struct acpi_resource_address32 *address32; + if (!resource || !out) { + return (AE_BAD_PARAMETER); + } + + /* Convert 16 or 32 address descriptor to 64 */ + switch (resource->type) { case ACPI_RESOURCE_TYPE_ADDRESS16: @@ -410,3 +416,113 @@ acpi_resource_to_address64(struct acpi_resource *resource, } EXPORT_SYMBOL(acpi_resource_to_address64); + +/******************************************************************************* + * + * FUNCTION: acpi_get_vendor_resource + * + * PARAMETERS: device_handle - Handle for the parent device object + * Name - Method name for the parent resource + * (METHOD_NAME__CRS or METHOD_NAME__PRS) + * Uuid - Pointer to the UUID to be matched. + * includes both subtype and 16-byte UUID + * ret_buffer - Where the vendor resource is returned + * + * RETURN: Status + * + * DESCRIPTION: Walk a resource template for the specified evice to find a + * vendor-defined resource that matches the supplied UUID and + * UUID subtype. Returns a struct acpi_resource of type Vendor. + * + ******************************************************************************/ + +acpi_status +acpi_get_vendor_resource(acpi_handle device_handle, + char *name, + struct acpi_vendor_uuid * uuid, + struct acpi_buffer * ret_buffer) +{ + struct acpi_vendor_walk_info info; + acpi_status status; + + /* Other parameters are validated by acpi_walk_resources */ + + if (!uuid || !ret_buffer) { + return (AE_BAD_PARAMETER); + } + + info.uuid = uuid; + info.buffer = ret_buffer; + info.status = AE_NOT_EXIST; + + /* Walk the _CRS or _PRS resource list for this device */ + + status = + acpi_walk_resources(device_handle, name, + acpi_rs_match_vendor_resource, &info); + if (ACPI_FAILURE(status)) { + return (status); + } + + return (info.status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_rs_match_vendor_resource + * + * PARAMETERS: ACPI_WALK_RESOURCE_CALLBACK + * + * RETURN: Status + * + * DESCRIPTION: Match a vendor resource via the ACPI 3.0 UUID + * + ******************************************************************************/ + +static acpi_status +acpi_rs_match_vendor_resource(struct acpi_resource *resource, void *context) +{ + struct acpi_vendor_walk_info *info = context; + struct acpi_resource_vendor_typed *vendor; + struct acpi_buffer *buffer; + acpi_status status; + + /* Ignore all descriptors except Vendor */ + + if (resource->type != ACPI_RESOURCE_TYPE_VENDOR) { + return (AE_OK); + } + + vendor = &resource->data.vendor_typed; + + /* + * For a valid match, these conditions must hold: + * + * 1) Length of descriptor data must be at least as long as a UUID struct + * 2) The UUID subtypes must match + * 3) The UUID data must match + */ + if ((vendor->byte_length < (ACPI_UUID_LENGTH + 1)) || + (vendor->uuid_subtype != info->uuid->subtype) || + (ACPI_MEMCMP(vendor->uuid, info->uuid->data, ACPI_UUID_LENGTH))) { + return (AE_OK); + } + + /* Validate/Allocate/Clear caller buffer */ + + buffer = info->buffer; + status = acpi_ut_initialize_buffer(buffer, resource->length); + if (ACPI_FAILURE(status)) { + return (status); + } + + /* Found the correct resource, copy and return it */ + + ACPI_MEMCPY(buffer->pointer, resource, resource->length); + buffer->length = resource->length; + + /* Found the desired descriptor, terminate resource walk */ + + info->status = AE_OK; + return (AE_CTRL_TERMINATE); +} diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 31218e1d2a18..e332306ae2b9 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -844,7 +844,7 @@ static void acpi_device_set_id(struct acpi_device *device, * ---- * Fix for the system root bus device -- the only root-level device. */ - if ((parent == ACPI_ROOT_OBJECT) && (type == ACPI_BUS_TYPE_DEVICE)) { + if (((acpi_handle)parent == ACPI_ROOT_OBJECT) && (type == ACPI_BUS_TYPE_DEVICE)) { hid = ACPI_BUS_HID; strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME); strcpy(device->pnp.device_class, ACPI_BUS_CLASS); diff --git a/drivers/acpi/tables/tbconvrt.c b/drivers/acpi/tables/tbconvrt.c index a03939399fa9..cd33397d9231 100644 --- a/drivers/acpi/tables/tbconvrt.c +++ b/drivers/acpi/tables/tbconvrt.c @@ -554,7 +554,9 @@ acpi_status acpi_tb_convert_table_fadt(void) ACPI_DEBUG_PRINT((ACPI_DB_TABLES, "Hex dump of common internal FADT, size %d (%X)\n", acpi_gbl_FADT->length, acpi_gbl_FADT->length)); - ACPI_DUMP_BUFFER((u8 *) (acpi_gbl_FADT), acpi_gbl_FADT->length); + + ACPI_DUMP_BUFFER(ACPI_CAST_PTR(u8, acpi_gbl_FADT), + acpi_gbl_FADT->length); return_ACPI_STATUS(AE_OK); } diff --git a/drivers/acpi/tables/tbgetall.c b/drivers/acpi/tables/tbgetall.c index 8d72343537e7..33c9ed8a6f99 100644 --- a/drivers/acpi/tables/tbgetall.c +++ b/drivers/acpi/tables/tbgetall.c @@ -292,7 +292,9 @@ acpi_status acpi_tb_get_required_tables(void) "Hex dump of entire DSDT, size %d (0x%X), Integer width = %d\n", acpi_gbl_DSDT->length, acpi_gbl_DSDT->length, acpi_gbl_integer_bit_width)); - ACPI_DUMP_BUFFER((u8 *) acpi_gbl_DSDT, acpi_gbl_DSDT->length); + + ACPI_DUMP_BUFFER(ACPI_CAST_PTR(u8, acpi_gbl_DSDT), + acpi_gbl_DSDT->length); /* Always delete the RSDP mapping, we are done with it */ diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c index e6dfe688b76b..9d0bf536d674 100644 --- a/drivers/acpi/tables/tbutils.c +++ b/drivers/acpi/tables/tbutils.c @@ -240,16 +240,16 @@ acpi_tb_verify_table_checksum(struct acpi_table_header * table_header) u8 acpi_tb_generate_checksum(void *buffer, u32 length) { - const u8 *limit; - const u8 *rover; + u8 *end_buffer; + u8 *rover; u8 sum = 0; if (buffer && length) { /* Buffer and Length are valid */ - limit = (u8 *) buffer + length; + end_buffer = ACPI_ADD_PTR(u8, buffer, length); - for (rover = buffer; rover < limit; rover++) { + for (rover = buffer; rover < end_buffer; rover++) { sum = (u8) (sum + *rover); } } diff --git a/drivers/acpi/utilities/utcopy.c b/drivers/acpi/utilities/utcopy.c index 5442b32de611..568df9e42f89 100644 --- a/drivers/acpi/utilities/utcopy.c +++ b/drivers/acpi/utilities/utcopy.c @@ -398,14 +398,17 @@ acpi_ut_copy_iobject_to_eobject(union acpi_operand_object *internal_object, * Build a simple object (no nested objects) */ status = acpi_ut_copy_isimple_to_esimple(internal_object, - (union acpi_object *) - ret_buffer->pointer, - ((u8 *) ret_buffer-> - pointer + - ACPI_ROUND_UP_TO_NATIVE_WORD - (sizeof - (union - acpi_object))), + ACPI_CAST_PTR(union + acpi_object, + ret_buffer-> + pointer), + ACPI_ADD_PTR(u8, + ret_buffer-> + pointer, + ACPI_ROUND_UP_TO_NATIVE_WORD + (sizeof + (union + acpi_object))), &ret_buffer->length); /* * build simple does not include the object size in the length diff --git a/drivers/acpi/utilities/utglobal.c b/drivers/acpi/utilities/utglobal.c index 413e1dd8ae36..d6813d88a104 100644 --- a/drivers/acpi/utilities/utglobal.c +++ b/drivers/acpi/utilities/utglobal.c @@ -638,7 +638,7 @@ char *acpi_ut_get_node_name(void *object) /* Name must be a valid ACPI name */ - if (!acpi_ut_valid_acpi_name(*(u32 *) node->name.ascii)) { + if (!acpi_ut_valid_acpi_name(node->name.integer)) { return ("????"); } @@ -831,6 +831,7 @@ void acpi_ut_init_globals(void) acpi_gbl_ps_find_count = 0; acpi_gbl_acpi_hardware_present = TRUE; acpi_gbl_owner_id_mask = 0; + acpi_gbl_last_owner_id = 0; acpi_gbl_trace_method_name = 0; acpi_gbl_trace_dbg_level = 0; acpi_gbl_trace_dbg_layer = 0; @@ -845,7 +846,6 @@ void acpi_ut_init_globals(void) /* Namespace */ acpi_gbl_root_node = NULL; - acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME; acpi_gbl_root_node_struct.descriptor = ACPI_DESC_TYPE_NAMED; acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE; diff --git a/drivers/acpi/utilities/utmisc.c b/drivers/acpi/utilities/utmisc.c index 2a9110c06391..89efba7bf449 100644 --- a/drivers/acpi/utilities/utmisc.c +++ b/drivers/acpi/utilities/utmisc.c @@ -63,6 +63,7 @@ ACPI_MODULE_NAME("utmisc") acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id) { acpi_native_uint i; + acpi_native_uint j; acpi_status status; ACPI_FUNCTION_TRACE("ut_allocate_owner_id"); @@ -82,29 +83,46 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id) return_ACPI_STATUS(status); } - /* Find a free owner ID */ + /* + * Find a free owner ID, cycle through all possible IDs on repeated + * allocations. Note: Index for next possible ID is equal to the value + * of the last allocated ID. + */ + for (i = 0, j = acpi_gbl_last_owner_id; i < 32; i++, j++) { + if (j >= 32) { + j = 0; /* Wraparound to ID start */ + } + + if (!(acpi_gbl_owner_id_mask & (1 << j))) { + /* + * Found a free ID. The actual ID is the bit index plus one, + * making zero an invalid Owner ID. Save this as the last ID + * allocated and update the global ID mask. + */ + acpi_gbl_last_owner_id = (acpi_owner_id) (j + 1); + *owner_id = acpi_gbl_last_owner_id; - for (i = 0; i < 32; i++) { - if (!(acpi_gbl_owner_id_mask & (1 << i))) { ACPI_DEBUG_PRINT((ACPI_DB_VALUES, "Current owner_id mask: %8.8X New ID: %2.2X\n", acpi_gbl_owner_id_mask, - (unsigned int)(i + 1))); + (unsigned int) + acpi_gbl_last_owner_id)); - acpi_gbl_owner_id_mask |= (1 << i); - *owner_id = (acpi_owner_id) (i + 1); + acpi_gbl_owner_id_mask |= (1 << j); goto exit; } } /* - * If we are here, all owner_ids have been allocated. This probably should + * All owner_ids have been allocated. This typically should * not happen since the IDs are reused after deallocation. The IDs are * allocated upon table load (one per table) and method execution, and * they are released when a table is unloaded or a method completes * execution. + * + * If this error happens, there may be very deep nesting of invoked control + * methods, or there may be a bug where the IDs are not released. */ - *owner_id = 0; status = AE_OWNER_ID_LIMIT; ACPI_REPORT_ERROR(("Could not allocate new owner_id (32 max), AE_OWNER_ID_LIMIT\n")); diff --git a/drivers/acpi/utilities/utresrc.c b/drivers/acpi/utilities/utresrc.c index 07a314c710d8..6c0ce7b12194 100644 --- a/drivers/acpi/utilities/utresrc.c +++ b/drivers/acpi/utilities/utresrc.c @@ -157,7 +157,7 @@ acpi_status acpi_ut_validate_resource(void *aml, u8 * return_index) /* * 1) Validate the resource_type field (Byte 0) */ - resource_type = *((u8 *) aml); + resource_type = ACPI_GET8(aml); /* * Byte 0 contains the descriptor name (Resource Type) @@ -266,14 +266,14 @@ u8 acpi_ut_get_resource_type(void *aml) * Byte 0 contains the descriptor name (Resource Type) * Examine the large/small bit in the resource header */ - if (*((u8 *) aml) & ACPI_RESOURCE_NAME_LARGE) { + if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { /* Large Resource Type -- bits 6:0 contain the name */ - return (*((u8 *) aml)); + return (ACPI_GET8(aml)); } else { /* Small Resource Type -- bits 6:3 contain the name */ - return ((u8) (*((u8 *) aml) & ACPI_RESOURCE_NAME_SMALL_MASK)); + return ((u8) (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_SMALL_MASK)); } } @@ -301,15 +301,15 @@ u16 acpi_ut_get_resource_length(void *aml) * Byte 0 contains the descriptor name (Resource Type) * Examine the large/small bit in the resource header */ - if (*((u8 *) aml) & ACPI_RESOURCE_NAME_LARGE) { + if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { /* Large Resource type -- bytes 1-2 contain the 16-bit length */ - ACPI_MOVE_16_TO_16(&resource_length, &((u8 *) aml)[1]); + ACPI_MOVE_16_TO_16(&resource_length, ACPI_ADD_PTR(u8, aml, 1)); } else { /* Small Resource type -- bits 2:0 of byte 0 contain the length */ - resource_length = (u16) (*((u8 *) aml) & + resource_length = (u16) (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_SMALL_LENGTH_MASK); } @@ -334,7 +334,7 @@ u8 acpi_ut_get_resource_header_length(void *aml) /* Examine the large/small bit in the resource header */ - if (*((u8 *) aml) & ACPI_RESOURCE_NAME_LARGE) { + if (ACPI_GET8(aml) & ACPI_RESOURCE_NAME_LARGE) { return (sizeof(struct aml_resource_large_header)); } else { return (sizeof(struct aml_resource_small_header)); @@ -372,8 +372,9 @@ u32 acpi_ut_get_descriptor_length(void *aml) * FUNCTION: acpi_ut_get_resource_end_tag * * PARAMETERS: obj_desc - The resource template buffer object + * end_tag - Where the pointer to the end_tag is returned * - * RETURN: Pointer to the end tag + * RETURN: Status, pointer to the end tag * * DESCRIPTION: Find the end_tag resource descriptor in an AML resource template * |