From 50eca3eb89d73d9f0aa070b126c7ee6a616016ab Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Fri, 30 Sep 2005 19:03:00 -0400 Subject: [ACPI] ACPICA 20050930 Completed a major overhaul of the Resource Manager code - specifically, optimizations in the area of the AML/internal resource conversion code. The code has been optimized to simplify and eliminate duplicated code, CPU stack use has been decreased by optimizing function parameters and local variables, and naming conventions across the manager have been standardized for clarity and ease of maintenance (this includes function, parameter, variable, and struct/typedef names.) All Resource Manager dispatch and information tables have been moved to a single location for clarity and ease of maintenance. One new file was created, named "rsinfo.c". The ACPI return macros (return_ACPI_STATUS, etc.) have been modified to guarantee that the argument is not evaluated twice, making them less prone to macro side-effects. However, since there exists the possibility of additional stack use if a particular compiler cannot optimize them (such as in the debug generation case), the original macros are optionally available. Note that some invocations of the return_VALUE macro may now cause size mismatch warnings; the return_UINT8 and return_UINT32 macros are provided to eliminate these. (From Randy Dunlap) Implemented a new mechanism to enable debug tracing for individual control methods. A new external interface, acpi_debug_trace(), is provided to enable this mechanism. The intent is to allow the host OS to easily enable and disable tracing for problematic control methods. This interface can be easily exposed to a user or debugger interface if desired. See the file psxface.c for details. acpi_ut_callocate() will now return a valid pointer if a length of zero is specified - a length of one is used and a warning is issued. This matches the behavior of acpi_ut_allocate(). Signed-off-by: Bob Moore Signed-off-by: Len Brown --- drivers/acpi/resources/rscreate.c | 59 +++++++++++++++++---------------------- 1 file changed, 26 insertions(+), 33 deletions(-) (limited to 'drivers/acpi/resources/rscreate.c') diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c index 0911526b7ad8..6c7c6c560635 100644 --- a/drivers/acpi/resources/rscreate.c +++ b/drivers/acpi/resources/rscreate.c @@ -53,10 +53,10 @@ ACPI_MODULE_NAME("rscreate") * * FUNCTION: acpi_rs_create_resource_list * - * PARAMETERS: byte_stream_buffer - Pointer to the resource byte stream - * output_buffer - Pointer to the user's buffer + * PARAMETERS: aml_buffer - Pointer to the resource byte stream + * output_buffer - Pointer to the user's buffer * - * RETURN: Status - AE_OK if okay, else a valid acpi_status code + * RETURN: Status: AE_OK if okay, else a valid acpi_status code * If output_buffer is not large enough, output_buffer_length * indicates how large output_buffer should be, else it * indicates how may u8 elements of output_buffer are valid. @@ -67,33 +67,30 @@ ACPI_MODULE_NAME("rscreate") * ******************************************************************************/ acpi_status -acpi_rs_create_resource_list(union acpi_operand_object *byte_stream_buffer, +acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer, struct acpi_buffer *output_buffer) { acpi_status status; - u8 *byte_stream_start; + u8 *aml_start; acpi_size list_size_needed = 0; - u32 byte_stream_buffer_length; + u32 aml_buffer_length; ACPI_FUNCTION_TRACE("rs_create_resource_list"); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "byte_stream_buffer = %p\n", - byte_stream_buffer)); + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "aml_buffer = %p\n", aml_buffer)); /* Params already validated, so we don't re-validate here */ - byte_stream_buffer_length = byte_stream_buffer->buffer.length; - byte_stream_start = byte_stream_buffer->buffer.pointer; + aml_buffer_length = aml_buffer->buffer.length; + aml_start = aml_buffer->buffer.pointer; /* - * Pass the byte_stream_buffer into a module that can calculate + * Pass the aml_buffer into a module that can calculate * the buffer size needed for the linked list */ - status = - acpi_rs_get_list_length(byte_stream_start, - byte_stream_buffer_length, - &list_size_needed); + status = acpi_rs_get_list_length(aml_start, aml_buffer_length, + &list_size_needed); ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Status=%X list_size_needed=%X\n", status, (u32) list_size_needed)); @@ -110,10 +107,8 @@ acpi_rs_create_resource_list(union acpi_operand_object *byte_stream_buffer, /* Do the conversion */ - status = - acpi_rs_byte_stream_to_list(byte_stream_start, - byte_stream_buffer_length, - output_buffer->pointer); + status = acpi_rs_convert_aml_to_resources(aml_start, aml_buffer_length, + output_buffer->pointer); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -360,7 +355,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, /******************************************************************************* * - * FUNCTION: acpi_rs_create_byte_stream + * FUNCTION: acpi_rs_create_aml_resources * * PARAMETERS: linked_list_buffer - Pointer to the resource linked list * output_buffer - Pointer to the user's buffer @@ -377,13 +372,13 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, ******************************************************************************/ acpi_status -acpi_rs_create_byte_stream(struct acpi_resource *linked_list_buffer, - struct acpi_buffer *output_buffer) +acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer, + struct acpi_buffer *output_buffer) { acpi_status status; - acpi_size byte_stream_size_needed = 0; + acpi_size aml_size_needed = 0; - ACPI_FUNCTION_TRACE("rs_create_byte_stream"); + ACPI_FUNCTION_TRACE("rs_create_aml_resources"); ACPI_DEBUG_PRINT((ACPI_DB_INFO, "linked_list_buffer = %p\n", linked_list_buffer)); @@ -394,11 +389,10 @@ acpi_rs_create_byte_stream(struct acpi_resource *linked_list_buffer, * Pass the linked_list_buffer into a module that calculates * the buffer size needed for the byte stream. */ - status = acpi_rs_get_byte_stream_length(linked_list_buffer, - &byte_stream_size_needed); + status = acpi_rs_get_aml_length(linked_list_buffer, &aml_size_needed); - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "byte_stream_size_needed=%X, %s\n", - (u32) byte_stream_size_needed, + ACPI_DEBUG_PRINT((ACPI_DB_INFO, "aml_size_needed=%X, %s\n", + (u32) aml_size_needed, acpi_format_exception(status))); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); @@ -406,8 +400,7 @@ acpi_rs_create_byte_stream(struct acpi_resource *linked_list_buffer, /* Validate/Allocate/Clear caller buffer */ - status = - acpi_ut_initialize_buffer(output_buffer, byte_stream_size_needed); + status = acpi_ut_initialize_buffer(output_buffer, aml_size_needed); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -415,9 +408,9 @@ acpi_rs_create_byte_stream(struct acpi_resource *linked_list_buffer, /* Do the conversion */ status = - acpi_rs_list_to_byte_stream(linked_list_buffer, - byte_stream_size_needed, - output_buffer->pointer); + acpi_rs_convert_resources_to_aml(linked_list_buffer, + aml_size_needed, + output_buffer->pointer); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } -- cgit v1.2.3 From 4a90c7e86202f46fa9af011bdbcdf36e355d1721 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Fri, 13 Jan 2006 16:22:00 -0500 Subject: [ACPI] ACPICA 20060113 Added 2006 copyright. At SuSE's suggestion, enabled all error messages without enabling function tracing, ie with CONFIG_ACPI_DEBUG=n Replaced all instances of the ACPI_DEBUG_PRINT macro invoked at the ACPI_DB_ERROR and ACPI_DB_WARN debug levels with the ACPI_REPORT_ERROR and ACPI_REPORT_WARNING macros, respectively. This preserves all error and warning messages in the non-debug version of the ACPICA code (this has been referred to as the "debug lite" option.) Over 200 cases were converted to create a total of over 380 error/warning messages across the ACPICA code. This increases the code and data size of the default non-debug version by about 13K. Added ACPI_NO_ERROR_MESSAGES flag to enable deleting all messages. The size of the debug version remains about the same. Signed-off-by: Bob Moore Signed-off-by: Len Brown --- drivers/acpi/resources/rscreate.c | 42 ++++++++------------------------------- 1 file changed, 8 insertions(+), 34 deletions(-) (limited to 'drivers/acpi/resources/rscreate.c') diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c index 6c7c6c560635..7f46ca0bf33a 100644 --- a/drivers/acpi/resources/rscreate.c +++ b/drivers/acpi/resources/rscreate.c @@ -5,7 +5,7 @@ ******************************************************************************/ /* - * Copyright (C) 2000 - 2005, R. Byron Moore + * Copyright (C) 2000 - 2006, R. Byron Moore * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -207,21 +207,14 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, /* Each element of the top-level package must also be a package */ if (ACPI_GET_OBJECT_TYPE(*top_object_list) != ACPI_TYPE_PACKAGE) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "(PRT[%X]) Need sub-package, found %s\n", - index, - acpi_ut_get_object_type_name - (*top_object_list))); + ACPI_REPORT_ERROR(("(PRT[%X]) Need sub-package, found %s\n", index, acpi_ut_get_object_type_name(*top_object_list))); return_ACPI_STATUS(AE_AML_OPERAND_TYPE); } /* Each sub-package must be of length 4 */ if ((*top_object_list)->package.count != 4) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "(PRT[%X]) Need package of length 4, found length %d\n", - index, - (*top_object_list)->package.count)); + ACPI_REPORT_ERROR(("(PRT[%X]) Need package of length 4, found length %d\n", index, (*top_object_list)->package.count)); return_ACPI_STATUS(AE_AML_PACKAGE_LIMIT); } @@ -238,11 +231,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { user_prt->address = obj_desc->integer.value; } else { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "(PRT[%X].Address) Need Integer, found %s\n", - index, - acpi_ut_get_object_type_name - (obj_desc))); + ACPI_REPORT_ERROR(("(PRT[%X].Address) Need Integer, found %s\n", index, acpi_ut_get_object_type_name(obj_desc))); return_ACPI_STATUS(AE_BAD_DATA); } @@ -252,11 +241,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { user_prt->pin = (u32) obj_desc->integer.value; } else { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "(PRT[%X].Pin) Need Integer, found %s\n", - index, - acpi_ut_get_object_type_name - (obj_desc))); + ACPI_REPORT_ERROR(("(PRT[%X].Pin) Need Integer, found %s\n", index, acpi_ut_get_object_type_name(obj_desc))); return_ACPI_STATUS(AE_BAD_DATA); } @@ -267,10 +252,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, case ACPI_TYPE_LOCAL_REFERENCE: if (obj_desc->reference.opcode != AML_INT_NAMEPATH_OP) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "(PRT[%X].Source) Need name, found reference op %X\n", - index, - obj_desc->reference.opcode)); + ACPI_REPORT_ERROR(("(PRT[%X].Source) Need name, found reference op %X\n", index, obj_desc->reference.opcode)); return_ACPI_STATUS(AE_BAD_DATA); } @@ -316,11 +298,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, default: - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "(PRT[%X].Source) Need Ref/String/Integer, found %s\n", - index, - acpi_ut_get_object_type_name - (obj_desc))); + ACPI_REPORT_ERROR(("(PRT[%X].Source) Need Ref/String/Integer, found %s\n", index, acpi_ut_get_object_type_name(obj_desc))); return_ACPI_STATUS(AE_BAD_DATA); } @@ -335,11 +313,7 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { user_prt->source_index = (u32) obj_desc->integer.value; } else { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "(PRT[%X].source_index) Need Integer, found %s\n", - index, - acpi_ut_get_object_type_name - (obj_desc))); + ACPI_REPORT_ERROR(("(PRT[%X].source_index) Need Integer, found %s\n", index, acpi_ut_get_object_type_name(obj_desc))); return_ACPI_STATUS(AE_BAD_DATA); } -- cgit v1.2.3 From b8e4d89357fc434618a59c1047cac72641191805 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Fri, 27 Jan 2006 16:43:00 -0500 Subject: [ACPI] ACPICA 20060127 Implemented support in the Resource Manager to allow unresolved namestring references within resource package objects for the _PRT method. This support is in addition to the previously implemented unresolved reference support within the AML parser. If the interpreter slack mode is enabled (true on Linux unless acpi=strict), these unresolved references will be passed through to the caller as a NULL package entry. http://bugzilla.kernel.org/show_bug.cgi?id=5741 Implemented and deployed new macros and functions for error and warning messages across the subsystem. These macros are simpler and generate less code than their predecessors. The new macros ACPI_ERROR, ACPI_EXCEPTION, ACPI_WARNING, and ACPI_INFO replace the ACPI_REPORT_* macros. Implemented the acpi_cpu_flags type to simplify host OS integration of the Acquire/Release Lock OSL interfaces. Suggested by Steven Rostedt and Andrew Morton. Fixed a problem where Alias ASL operators are sometimes not correctly resolved. causing AE_AML_INTERNAL http://bugzilla.kernel.org/show_bug.cgi?id=5189 http://bugzilla.kernel.org/show_bug.cgi?id=5674 Fixed several problems with the implementation of the ConcatenateResTemplate ASL operator. As per the ACPI specification, zero length buffers are now treated as a single EndTag. One-length buffers always cause a fatal exception. Non-zero length buffers that do not end with a full 2-byte EndTag cause a fatal exception. Fixed a possible structure overwrite in the AcpiGetObjectInfo external interface. (With assistance from Thomas Renninger) Signed-off-by: Bob Moore Signed-off-by: Len Brown --- drivers/acpi/resources/rscreate.c | 144 +++++++++++++++++++++++--------------- 1 file changed, 87 insertions(+), 57 deletions(-) (limited to 'drivers/acpi/resources/rscreate.c') diff --git a/drivers/acpi/resources/rscreate.c b/drivers/acpi/resources/rscreate.c index 7f46ca0bf33a..8c128dea3252 100644 --- a/drivers/acpi/resources/rscreate.c +++ b/drivers/acpi/resources/rscreate.c @@ -207,14 +207,20 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, /* Each element of the top-level package must also be a package */ if (ACPI_GET_OBJECT_TYPE(*top_object_list) != ACPI_TYPE_PACKAGE) { - ACPI_REPORT_ERROR(("(PRT[%X]) Need sub-package, found %s\n", index, acpi_ut_get_object_type_name(*top_object_list))); + ACPI_ERROR((AE_INFO, + "(PRT[%X]) Need sub-package, found %s", + index, + acpi_ut_get_object_type_name + (*top_object_list))); return_ACPI_STATUS(AE_AML_OPERAND_TYPE); } /* Each sub-package must be of length 4 */ if ((*top_object_list)->package.count != 4) { - ACPI_REPORT_ERROR(("(PRT[%X]) Need package of length 4, found length %d\n", index, (*top_object_list)->package.count)); + ACPI_ERROR((AE_INFO, + "(PRT[%X]) Need package of length 4, found length %d", + index, (*top_object_list)->package.count)); return_ACPI_STATUS(AE_AML_PACKAGE_LIMIT); } @@ -231,7 +237,10 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { user_prt->address = obj_desc->integer.value; } else { - ACPI_REPORT_ERROR(("(PRT[%X].Address) Need Integer, found %s\n", index, acpi_ut_get_object_type_name(obj_desc))); + ACPI_ERROR((AE_INFO, + "(PRT[%X].Address) Need Integer, found %s", + index, + acpi_ut_get_object_type_name(obj_desc))); return_ACPI_STATUS(AE_BAD_DATA); } @@ -241,65 +250,83 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { user_prt->pin = (u32) obj_desc->integer.value; } else { - ACPI_REPORT_ERROR(("(PRT[%X].Pin) Need Integer, found %s\n", index, acpi_ut_get_object_type_name(obj_desc))); + ACPI_ERROR((AE_INFO, + "(PRT[%X].Pin) Need Integer, found %s", + index, + acpi_ut_get_object_type_name(obj_desc))); return_ACPI_STATUS(AE_BAD_DATA); } - /* 3) Third subobject: Dereference the PRT.source_name */ - + /* + * 3) Third subobject: Dereference the PRT.source_name + * The name may be unresolved (slack mode), so allow a null object + */ obj_desc = sub_object_list[2]; - switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { - case ACPI_TYPE_LOCAL_REFERENCE: - - if (obj_desc->reference.opcode != AML_INT_NAMEPATH_OP) { - ACPI_REPORT_ERROR(("(PRT[%X].Source) Need name, found reference op %X\n", index, obj_desc->reference.opcode)); + if (obj_desc) { + switch (ACPI_GET_OBJECT_TYPE(obj_desc)) { + case ACPI_TYPE_LOCAL_REFERENCE: + + if (obj_desc->reference.opcode != + AML_INT_NAMEPATH_OP) { + ACPI_ERROR((AE_INFO, + "(PRT[%X].Source) Need name, found reference op %X", + index, + obj_desc->reference. + opcode)); + return_ACPI_STATUS(AE_BAD_DATA); + } + + node = obj_desc->reference.node; + + /* Use *remaining* length of the buffer as max for pathname */ + + path_buffer.length = output_buffer->length - + (u32) ((u8 *) user_prt->source - + (u8 *) output_buffer->pointer); + path_buffer.pointer = user_prt->source; + + status = + acpi_ns_handle_to_pathname((acpi_handle) + node, + &path_buffer); + + /* +1 to include null terminator */ + + user_prt->length += + (u32) ACPI_STRLEN(user_prt->source) + 1; + break; + + case ACPI_TYPE_STRING: + + ACPI_STRCPY(user_prt->source, + obj_desc->string.pointer); + + /* + * Add to the Length field the length of the string + * (add 1 for terminator) + */ + user_prt->length += obj_desc->string.length + 1; + break; + + case ACPI_TYPE_INTEGER: + /* + * If this is a number, then the Source Name is NULL, since the + * entire buffer was zeroed out, we can leave this alone. + * + * Add to the Length field the length of the u32 NULL + */ + user_prt->length += sizeof(u32); + break; + + default: + + ACPI_ERROR((AE_INFO, + "(PRT[%X].Source) Need Ref/String/Integer, found %s", + index, + acpi_ut_get_object_type_name + (obj_desc))); return_ACPI_STATUS(AE_BAD_DATA); } - - node = obj_desc->reference.node; - - /* Use *remaining* length of the buffer as max for pathname */ - - path_buffer.length = output_buffer->length - - (u32) ((u8 *) user_prt->source - - (u8 *) output_buffer->pointer); - path_buffer.pointer = user_prt->source; - - status = - acpi_ns_handle_to_pathname((acpi_handle) node, - &path_buffer); - - /* +1 to include null terminator */ - - user_prt->length += - (u32) ACPI_STRLEN(user_prt->source) + 1; - break; - - case ACPI_TYPE_STRING: - - ACPI_STRCPY(user_prt->source, obj_desc->string.pointer); - - /* - * Add to the Length field the length of the string - * (add 1 for terminator) - */ - user_prt->length += obj_desc->string.length + 1; - break; - - case ACPI_TYPE_INTEGER: - /* - * If this is a number, then the Source Name is NULL, since the - * entire buffer was zeroed out, we can leave this alone. - * - * Add to the Length field the length of the u32 NULL - */ - user_prt->length += sizeof(u32); - break; - - default: - - ACPI_REPORT_ERROR(("(PRT[%X].Source) Need Ref/String/Integer, found %s\n", index, acpi_ut_get_object_type_name(obj_desc))); - return_ACPI_STATUS(AE_BAD_DATA); } /* Now align the current length */ @@ -313,7 +340,10 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object, if (ACPI_GET_OBJECT_TYPE(obj_desc) == ACPI_TYPE_INTEGER) { user_prt->source_index = (u32) obj_desc->integer.value; } else { - ACPI_REPORT_ERROR(("(PRT[%X].source_index) Need Integer, found %s\n", index, acpi_ut_get_object_type_name(obj_desc))); + ACPI_ERROR((AE_INFO, + "(PRT[%X].source_index) Need Integer, found %s", + index, + acpi_ut_get_object_type_name(obj_desc))); return_ACPI_STATUS(AE_BAD_DATA); } -- cgit v1.2.3