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/resources/rsutils.c | 88 ++++++++++------------------------------ 1 file changed, 21 insertions(+), 67 deletions(-) (limited to 'drivers/acpi/resources/rsutils.c') diff --git a/drivers/acpi/resources/rsutils.c b/drivers/acpi/resources/rsutils.c index 7613033f5dc..a1eac0f1df5 100644 --- a/drivers/acpi/resources/rsutils.c +++ b/drivers/acpi/resources/rsutils.c @@ -65,6 +65,8 @@ u8 acpi_rs_decode_bitmask(u16 mask, u8 * list) acpi_native_uint i; u8 bit_count; + ACPI_FUNCTION_ENTRY(); + /* Decode the mask bits */ for (i = 0, bit_count = 0; mask; i++) { @@ -97,6 +99,8 @@ u16 acpi_rs_encode_bitmask(u8 * list, u8 count) acpi_native_uint i; u16 mask; + ACPI_FUNCTION_ENTRY(); + /* Encode the list into a single bitmask */ for (i = 0, mask = 0; i < count; i++) { @@ -128,6 +132,8 @@ acpi_rs_move_data(void *destination, void *source, u16 item_count, u8 move_type) { acpi_native_uint i; + ACPI_FUNCTION_ENTRY(); + /* One move per item */ for (i = 0; i < item_count; i++) { @@ -166,53 +172,6 @@ acpi_rs_move_data(void *destination, void *source, u16 item_count, u8 move_type) } } -/******************************************************************************* - * - * FUNCTION: acpi_rs_get_resource_info - * - * PARAMETERS: resource_type - Byte 0 of a resource descriptor - * - * RETURN: Pointer to the resource conversion handler - * - * DESCRIPTION: Extract the Resource Type/Name from the first byte of - * a resource descriptor. - * - ******************************************************************************/ - -struct acpi_resource_info *acpi_rs_get_resource_info(u8 resource_type) -{ - struct acpi_resource_info *size_info; - - ACPI_FUNCTION_ENTRY(); - - /* Determine if this is a small or large resource */ - - if (resource_type & ACPI_RESOURCE_NAME_LARGE) { - /* Large Resource Type -- bits 6:0 contain the name */ - - if (resource_type > ACPI_RESOURCE_NAME_LARGE_MAX) { - return (NULL); - } - - size_info = &acpi_gbl_lg_resource_info[(resource_type & - ACPI_RESOURCE_NAME_LARGE_MASK)]; - } else { - /* Small Resource Type -- bits 6:3 contain the name */ - - size_info = &acpi_gbl_sm_resource_info[((resource_type & - ACPI_RESOURCE_NAME_SMALL_MASK) - >> 3)]; - } - - /* Zero entry indicates an invalid resource type */ - - if (!size_info->minimum_internal_struct_length) { - return (NULL); - } - - return (size_info); -} - /******************************************************************************* * * FUNCTION: acpi_rs_set_resource_length @@ -238,25 +197,20 @@ acpi_rs_set_resource_length(acpi_rsdesc_size total_length, ACPI_FUNCTION_ENTRY(); - /* Determine if this is a small or large resource */ + /* Length is the total descriptor length minus the header length */ - if (aml->small_header.descriptor_type & ACPI_RESOURCE_NAME_LARGE) { - /* Large Resource type -- bytes 1-2 contain the 16-bit length */ + resource_length = (acpi_rs_length) + (total_length - acpi_ut_get_resource_header_length(aml)); - resource_length = (acpi_rs_length) - (total_length - sizeof(struct aml_resource_large_header)); + /* Length is stored differently for large and small descriptors */ - /* Insert length into the Large descriptor length field */ + if (aml->small_header.descriptor_type & ACPI_RESOURCE_NAME_LARGE) { + /* Large descriptor -- bytes 1-2 contain the 16-bit length */ ACPI_MOVE_16_TO_16(&aml->large_header.resource_length, &resource_length); } else { - /* Small Resource type -- bits 2:0 of byte 0 contain the length */ - - resource_length = (acpi_rs_length) - (total_length - sizeof(struct aml_resource_small_header)); - - /* Insert length into the descriptor type byte */ + /* Small descriptor -- bits 2:0 of byte 0 contain the length */ aml->small_header.descriptor_type = (u8) @@ -292,7 +246,7 @@ acpi_rs_set_resource_header(u8 descriptor_type, { ACPI_FUNCTION_ENTRY(); - /* Set the Descriptor Type */ + /* Set the Resource Type */ aml->small_header.descriptor_type = descriptor_type; @@ -409,14 +363,14 @@ acpi_rs_get_resource_source(acpi_rs_length resource_length, (char *)&aml_resource_source[1]); return ((acpi_rs_length) total_length); - } else { - /* resource_source is not present */ - - resource_source->index = 0; - resource_source->string_length = 0; - resource_source->string_ptr = NULL; - return (0); } + + /* resource_source is not present */ + + resource_source->index = 0; + resource_source->string_length = 0; + resource_source->string_ptr = NULL; + return (0); } /******************************************************************************* -- cgit