From 0897831bb54eb36fd9e2a22da7f0f64be1b20d09 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Fri, 21 Oct 2005 00:00:00 -0400 Subject: [ACPI] ACPICA 20051021 Implemented support for the EM64T and other x86_64 processors. This essentially entails recognizing that these processors support non-aligned memory transfers. Previously, all 64-bit processors were assumed to lack hardware support for non-aligned transfers. Completed conversion of the Resource Manager to nearly full table-driven operation. Specifically, the resource conversion code (convert AML to internal format and the reverse) and the debug code to dump internal resource descriptors are fully table-driven, reducing code and data size and improving maintainability. The OSL interfaces for Acquire and Release Lock now use a 64-bit flag word on 64-bit processors instead of a fixed 32-bit word. (Alexey Starikovskiy) Implemented support within the resource conversion code for the Type-Specific byte within the various ACPI 3.0 *WordSpace macros. Fixed some issues within the resource conversion code for the type-specific flags for both Memory and I/O address resource descriptors. For Memory, implemented support for the MTP and TTP flags. For I/O, split the TRS and TTP flags into two separate fields. Signed-off-by: Bob Moore Signed-off-by: Len Brown --- drivers/acpi/executer/exmisc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers/acpi/executer/exmisc.c') diff --git a/drivers/acpi/executer/exmisc.c b/drivers/acpi/executer/exmisc.c index a3f4d72bedc9..1899ab251393 100644 --- a/drivers/acpi/executer/exmisc.c +++ b/drivers/acpi/executer/exmisc.c @@ -625,9 +625,8 @@ acpi_ex_do_logical_op(u16 opcode, /* Lexicographic compare: compare the data bytes */ - compare = ACPI_MEMCMP((const char *)operand0->buffer.pointer, - (const char *)local_operand1->buffer. - pointer, + compare = ACPI_MEMCMP(operand0->buffer.pointer, + local_operand1->buffer.pointer, (length0 > length1) ? length1 : length0); switch (opcode) { -- cgit v1.2.3 From 96db255c8f014ae3497507104e8df809785a619f Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Wed, 2 Nov 2005 00:00:00 -0500 Subject: [ACPI] ACPICA 20051102 Modified the subsystem initialization sequence to improve GPE support. The GPE initialization has been split into two parts in order to defer execution of the _PRW methods (Power Resources for Wake) until after the hardware is fully initialized and the SCI handler is installed. This allows the _PRW methods to access fields protected by the Global Lock. This will fix systems where a NO_GLOBAL_LOCK exception has been seen during initialization. Fixed a regression with the ConcatenateResTemplate() ASL operator introduced in the 20051021 release. Implemented support for "local" internal ACPI object types within the debugger "Object" command and the acpi_walk_namespace() external interfaces. These local types include RegionFields, BankFields, IndexFields, Alias, and reference objects. Moved common AML resource handling code into a new file, "utresrc.c". This code is shared by both the Resource Manager and the AML Debugger. Signed-off-by: Bob Moore Signed-off-by: Len Brown --- drivers/acpi/executer/exmisc.c | 47 +++++++++++++++++++++++++++--------------- 1 file changed, 30 insertions(+), 17 deletions(-) (limited to 'drivers/acpi/executer/exmisc.c') diff --git a/drivers/acpi/executer/exmisc.c b/drivers/acpi/executer/exmisc.c index 1899ab251393..00a25f8188f4 100644 --- a/drivers/acpi/executer/exmisc.c +++ b/drivers/acpi/executer/exmisc.c @@ -45,6 +45,7 @@ #include #include #include +#include #define _COMPONENT ACPI_EXECUTER ACPI_MODULE_NAME("exmisc") @@ -157,40 +158,52 @@ acpi_ex_concat_template(union acpi_operand_object *operand0, union acpi_operand_object **actual_return_desc, struct acpi_walk_state *walk_state) { + acpi_status status; union acpi_operand_object *return_desc; u8 *new_buf; - u8 *end_tag1; - u8 *end_tag2; + u8 *end_tag; + acpi_size length0; acpi_size length1; - acpi_size length2; ACPI_FUNCTION_TRACE("ex_concat_template"); - /* Find the end_tags in each resource template */ + /* + * Find the end_tag descriptor in each resource template. + * Note: returned pointers point TO the end_tag, not past it. + * + * Compute the length of each resource template + */ + status = acpi_ut_get_resource_end_tag(operand0, &end_tag); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } - end_tag1 = acpi_ut_get_resource_end_tag(operand0); - end_tag2 = acpi_ut_get_resource_end_tag(operand1); - if (!end_tag1 || !end_tag2) { - return_ACPI_STATUS(AE_AML_OPERAND_TYPE); + length0 = ACPI_PTR_DIFF(end_tag, operand0->buffer.pointer); + + status = acpi_ut_get_resource_end_tag(operand1, &end_tag); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); } - /* Compute the length of each part */ + /* Include the end_tag in the second template length */ - length1 = ACPI_PTR_DIFF(end_tag1, operand0->buffer.pointer); - length2 = ACPI_PTR_DIFF(end_tag2, operand1->buffer.pointer) + 2; /* Size of END_TAG */ + length1 = ACPI_PTR_DIFF(end_tag, operand1->buffer.pointer) + + sizeof(struct aml_resource_end_tag); /* Create a new buffer object for the result */ - return_desc = acpi_ut_create_buffer_object(length1 + length2); + return_desc = acpi_ut_create_buffer_object(length0 + length1); if (!return_desc) { return_ACPI_STATUS(AE_NO_MEMORY); } - /* Copy the templates to the new descriptor */ - + /* + * Copy the templates to the new buffer, 0 first, then 1 follows. One + * end_tag descriptor is copied from Operand1. + */ new_buf = return_desc->buffer.pointer; - ACPI_MEMCPY(new_buf, operand0->buffer.pointer, length1); - ACPI_MEMCPY(new_buf + length1, operand1->buffer.pointer, length2); + ACPI_MEMCPY(new_buf, operand0->buffer.pointer, length0); + ACPI_MEMCPY(new_buf + length0, operand1->buffer.pointer, length1); /* Compute the new checksum */ @@ -198,7 +211,7 @@ acpi_ex_concat_template(union acpi_operand_object *operand0, acpi_ut_generate_checksum(return_desc->buffer.pointer, (return_desc->buffer.length - 1)); - /* Return the completed template descriptor */ + /* Return the completed resource template */ *actual_return_desc = return_desc; return_ACPI_STATUS(AE_OK); -- cgit v1.2.3 From c51a4de85de720670f2fbc592a6f8040af72ad87 Mon Sep 17 00:00:00 2001 From: Bob Moore Date: Thu, 17 Nov 2005 13:07:00 -0500 Subject: [ACPI] ACPICA 20051117 Fixed a problem in the AML parser where the method thread count could be decremented below zero if any errors occurred during the method parse phase. This should eliminate AE_AML_METHOD_LIMIT exceptions seen on some machines. This also fixed a related regression with the mechanism that detects and corrects methods that cannot properly handle reentrancy (related to the deployment of the new OwnerId mechanism.) Eliminated the pre-parsing of control methods (to detect errors) during table load. Related to the problem above, this was causing unwind issues if any errors occurred during the parse, and it seemed to be overkill. A table load should not be aborted if there are problems with any single control method, thus rendering this feature rather pointless. Fixed a problem with the new table-driven resource manager where an internal buffer overflow could occur for small resource templates. Implemented a new external interface, acpi_get_vendor_resource() This interface will find and return a vendor-defined resource descriptor within a _CRS or _PRS method via an ACPI 3.0 UUID match. (from Bjorn Helgaas) Removed the length limit (200) on string objects as per the upcoming ACPI 3.0A specification. This affects the following areas of the interpreter: 1) any implicit conversion of a Buffer to a String, 2) a String object result of the ASL Concatentate operator, 3) the String object result of the ASL ToString operator. Signed-off-by: Bob Moore Signed-off-by: Len Brown --- drivers/acpi/executer/exmisc.c | 38 +++++++++++++++----------------------- 1 file changed, 15 insertions(+), 23 deletions(-) (limited to 'drivers/acpi/executer/exmisc.c') 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); -- 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/executer/exmisc.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) (limited to 'drivers/acpi/executer/exmisc.c') diff --git a/drivers/acpi/executer/exmisc.c b/drivers/acpi/executer/exmisc.c index 0778bff632bf..5ad34566738c 100644 --- a/drivers/acpi/executer/exmisc.c +++ b/drivers/acpi/executer/exmisc.c @@ -6,7 +6,7 @@ *****************************************************************************/ /* - * 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 @@ -98,7 +98,8 @@ acpi_ex_get_object_reference(union acpi_operand_object *obj_desc, default: - ACPI_REPORT_ERROR(("Unknown Reference opcode in get_reference %X\n", obj_desc->reference.opcode)); + ACPI_REPORT_ERROR(("Unknown Reference opcode %X\n", + obj_desc->reference.opcode)); return_ACPI_STATUS(AE_AML_INTERNAL); } break; @@ -113,7 +114,8 @@ acpi_ex_get_object_reference(union acpi_operand_object *obj_desc, default: - ACPI_REPORT_ERROR(("Invalid descriptor type in get_reference: %X\n", ACPI_GET_DESCRIPTOR_TYPE(obj_desc))); + ACPI_REPORT_ERROR(("Invalid descriptor type %X\n", + ACPI_GET_DESCRIPTOR_TYPE(obj_desc))); return_ACPI_STATUS(AE_TYPE); } @@ -266,7 +268,7 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0, break; default: - ACPI_REPORT_ERROR(("Concatanate - invalid object type: %X\n", + ACPI_REPORT_ERROR(("Invalid object type: %X\n", ACPI_GET_OBJECT_TYPE(operand0))); status = AE_AML_INTERNAL; } @@ -368,7 +370,7 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0, /* Invalid object type, should not happen here */ - ACPI_REPORT_ERROR(("Concatenate - Invalid object type: %X\n", + ACPI_REPORT_ERROR(("Invalid object type: %X\n", ACPI_GET_OBJECT_TYPE(operand0))); status = AE_AML_INTERNAL; goto cleanup; -- 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/executer/exmisc.c | 43 ++++++++++++++++++++++++------------------ 1 file changed, 25 insertions(+), 18 deletions(-) (limited to 'drivers/acpi/executer/exmisc.c') diff --git a/drivers/acpi/executer/exmisc.c b/drivers/acpi/executer/exmisc.c index 5ad34566738c..48c18d29222a 100644 --- a/drivers/acpi/executer/exmisc.c +++ b/drivers/acpi/executer/exmisc.c @@ -98,8 +98,8 @@ acpi_ex_get_object_reference(union acpi_operand_object *obj_desc, default: - ACPI_REPORT_ERROR(("Unknown Reference opcode %X\n", - obj_desc->reference.opcode)); + ACPI_ERROR((AE_INFO, "Unknown Reference opcode %X", + obj_desc->reference.opcode)); return_ACPI_STATUS(AE_AML_INTERNAL); } break; @@ -114,8 +114,8 @@ acpi_ex_get_object_reference(union acpi_operand_object *obj_desc, default: - ACPI_REPORT_ERROR(("Invalid descriptor type %X\n", - ACPI_GET_DESCRIPTOR_TYPE(obj_desc))); + ACPI_ERROR((AE_INFO, "Invalid descriptor type %X", + ACPI_GET_DESCRIPTOR_TYPE(obj_desc))); return_ACPI_STATUS(AE_TYPE); } @@ -166,15 +166,18 @@ acpi_ex_concat_template(union acpi_operand_object *operand0, u8 *end_tag; acpi_size length0; acpi_size length1; + acpi_size new_length; ACPI_FUNCTION_TRACE("ex_concat_template"); /* * Find the end_tag descriptor in each resource template. - * Note: returned pointers point TO the end_tag, not past it. - * - * Compute the length of each resource template + * Note1: returned pointers point TO the end_tag, not past it. + * Note2: zero-length buffers are allowed; treated like one end_tag */ + + /* Get the length of the first resource template */ + status = acpi_ut_get_resource_end_tag(operand0, &end_tag); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); @@ -182,19 +185,22 @@ acpi_ex_concat_template(union acpi_operand_object *operand0, length0 = ACPI_PTR_DIFF(end_tag, operand0->buffer.pointer); + /* Get the length of the second resource template */ + status = acpi_ut_get_resource_end_tag(operand1, &end_tag); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } - /* Include the end_tag in the second template length */ + length1 = ACPI_PTR_DIFF(end_tag, operand1->buffer.pointer); + + /* Combine both lengths, minimum size will be 2 for end_tag */ - length1 = ACPI_PTR_DIFF(end_tag, operand1->buffer.pointer) + - sizeof(struct aml_resource_end_tag); + new_length = length0 + length1 + sizeof(struct aml_resource_end_tag); - /* Create a new buffer object for the result */ + /* Create a new buffer object for the result (with one end_tag) */ - return_desc = acpi_ut_create_buffer_object(length0 + length1); + return_desc = acpi_ut_create_buffer_object(new_length); if (!return_desc) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -207,9 +213,10 @@ 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); - /* Set the end_tag checksum to zero, means "ignore checksum" */ + /* Insert end_tag and set the checksum to zero, means "ignore checksum" */ - new_buf[return_desc->buffer.length - 1] = 0; + new_buf[new_length - 1] = 0; + new_buf[new_length - 2] = ACPI_RESOURCE_NAME_END_TAG | 1; /* Return the completed resource template */ @@ -268,8 +275,8 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0, break; default: - ACPI_REPORT_ERROR(("Invalid object type: %X\n", - ACPI_GET_OBJECT_TYPE(operand0))); + ACPI_ERROR((AE_INFO, "Invalid object type: %X", + ACPI_GET_OBJECT_TYPE(operand0))); status = AE_AML_INTERNAL; } @@ -370,8 +377,8 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0, /* Invalid object type, should not happen here */ - ACPI_REPORT_ERROR(("Invalid object type: %X\n", - ACPI_GET_OBJECT_TYPE(operand0))); + ACPI_ERROR((AE_INFO, "Invalid object type: %X", + ACPI_GET_OBJECT_TYPE(operand0))); status = AE_AML_INTERNAL; goto cleanup; } -- cgit v1.2.3