From 428f211297bc95fd41f23830eab4180339020dd0 Mon Sep 17 00:00:00 2001 From: Alexey Starikovskiy Date: Fri, 2 Feb 2007 19:48:22 +0300 Subject: ACPICA: Miscellaneous table manager updates and optimizations Signed-off-by: Bob Moore Signed-off-by: Len Brown --- drivers/acpi/tables/tbinstal.c | 91 +++++++++++++++++++++++++----------------- drivers/acpi/tables/tbutils.c | 46 --------------------- drivers/acpi/tables/tbxface.c | 54 ++++++++++++++++++------- 3 files changed, 93 insertions(+), 98 deletions(-) (limited to 'drivers/acpi/tables') diff --git a/drivers/acpi/tables/tbinstal.c b/drivers/acpi/tables/tbinstal.c index 9e0b3ce0d8e..b07d9c8330b 100644 --- a/drivers/acpi/tables/tbinstal.c +++ b/drivers/acpi/tables/tbinstal.c @@ -61,16 +61,19 @@ ACPI_MODULE_NAME("tbinstal") *****************************************************************************/ acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc) { - acpi_status status; + acpi_status status = AE_OK; ACPI_FUNCTION_TRACE(tb_verify_table); /* Map the table if necessary */ if (!table_desc->pointer) { - table_desc->pointer = - acpi_tb_map(table_desc->address, table_desc->length, - table_desc->flags & ACPI_TABLE_ORIGIN_MASK); + if ((table_desc->flags & ACPI_TABLE_ORIGIN_MASK) == + ACPI_TABLE_ORIGIN_MAPPED) { + table_desc->pointer = + acpi_os_map_memory(table_desc->address, + table_desc->length); + } if (!table_desc->pointer) { return_ACPI_STATUS(AE_NO_MEMORY); } @@ -78,14 +81,15 @@ acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc) /* FACS is the odd table, has no standard ACPI header and no checksum */ - if (ACPI_COMPARE_NAME(&(table_desc->signature), ACPI_SIG_FACS)) { - return_ACPI_STATUS(AE_OK); - } + if (!ACPI_COMPARE_NAME(&table_desc->signature, ACPI_SIG_FACS)) { - /* Always calculate checksum, ignore bad checksum if requested */ + /* Always calculate checksum, ignore bad checksum if requested */ + + status = + acpi_tb_verify_checksum(table_desc->pointer, + table_desc->length); + } - status = - acpi_tb_verify_checksum(table_desc->pointer, table_desc->length); return_ACPI_STATUS(status); } @@ -93,7 +97,7 @@ acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc) * * FUNCTION: acpi_tb_add_table * - * PARAMETERS: Table - Pointer to the table header + * PARAMETERS: table_desc - Table descriptor * table_index - Where the table index is returned * * RETURN: Status @@ -103,7 +107,7 @@ acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc) ******************************************************************************/ acpi_status -acpi_tb_add_table(struct acpi_table_header *table, +acpi_tb_add_table(struct acpi_table_desc *table_desc, acpi_native_uint * table_index) { acpi_native_uint i; @@ -112,6 +116,25 @@ acpi_tb_add_table(struct acpi_table_header *table, ACPI_FUNCTION_TRACE(tb_add_table); + if (!table_desc->pointer) { + status = acpi_tb_verify_table(table_desc); + if (ACPI_FAILURE(status) || !table_desc->pointer) { + return_ACPI_STATUS(status); + } + } + + /* The table must be either an SSDT or a PSDT */ + + if ((!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_PSDT)) + && + (!ACPI_COMPARE_NAME(table_desc->pointer->signature, ACPI_SIG_SSDT))) + { + ACPI_ERROR((AE_INFO, + "Table has invalid signature [%4.4s], must be SSDT or PSDT", + table_desc->pointer->signature)); + return_ACPI_STATUS(AE_BAD_SIGNATURE); + } + (void)acpi_ut_acquire_mutex(ACPI_MTX_TABLES); /* Check if table is already registered */ @@ -127,18 +150,17 @@ acpi_tb_add_table(struct acpi_table_header *table, } } - length = ACPI_MIN(table->length, - acpi_gbl_root_table_list.tables[i].pointer-> - length); - if (ACPI_MEMCMP - (table, acpi_gbl_root_table_list.tables[i].pointer, - length)) { + length = ACPI_MIN(table_desc->length, + acpi_gbl_root_table_list.tables[i].length); + if (ACPI_MEMCMP(table_desc->pointer, + acpi_gbl_root_table_list.tables[i].pointer, + length)) { continue; } /* Table is already registered */ - ACPI_FREE(table); + acpi_tb_delete_table(table_desc); *table_index = i; goto release; } @@ -146,14 +168,14 @@ acpi_tb_add_table(struct acpi_table_header *table, /* * Add the table to the global table list */ - status = acpi_tb_store_table(ACPI_TO_INTEGER(table), - table, table->length, - ACPI_TABLE_ORIGIN_ALLOCATED, table_index); + status = acpi_tb_store_table(table_desc->address, table_desc->pointer, + table_desc->length, table_desc->flags, + table_index); if (ACPI_FAILURE(status)) { goto release; } - acpi_tb_print_table_header(0, table); + acpi_tb_print_table_header(table_desc->address, table_desc->pointer); release: (void)acpi_ut_release_mutex(ACPI_MTX_TABLES); @@ -282,25 +304,20 @@ acpi_tb_store_table(acpi_physical_address address, * ******************************************************************************/ -void acpi_tb_delete_table(acpi_native_uint table_index) +void acpi_tb_delete_table(struct acpi_table_desc *table_desc) { - struct acpi_table_desc *table_desc; - - /* table_index assumed valid */ - - table_desc = &acpi_gbl_root_table_list.tables[table_index]; - /* Table must be mapped or allocated */ - if (!table_desc->pointer) { return; } - - if (table_desc->flags & ACPI_TABLE_ORIGIN_MAPPED) { - acpi_tb_unmap(table_desc->pointer, table_desc->length, - table_desc->flags & ACPI_TABLE_ORIGIN_MASK); - } else if (table_desc->flags & ACPI_TABLE_ORIGIN_ALLOCATED) { + switch (table_desc->flags & ACPI_TABLE_ORIGIN_MASK) { + case ACPI_TABLE_ORIGIN_MAPPED: + acpi_os_unmap_memory(table_desc->pointer, table_desc->length); + break; + case ACPI_TABLE_ORIGIN_ALLOCATED: ACPI_FREE(table_desc->pointer); + break; + default:; } table_desc->pointer = NULL; @@ -329,7 +346,7 @@ void acpi_tb_terminate(void) /* Delete the individual tables */ for (i = 0; i < acpi_gbl_root_table_list.count; ++i) { - acpi_tb_delete_table(i); + acpi_tb_delete_table(&acpi_gbl_root_table_list.tables[i]); } /* diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c index 1033748e73e..0cb743962fa 100644 --- a/drivers/acpi/tables/tbutils.c +++ b/drivers/acpi/tables/tbutils.c @@ -462,49 +462,3 @@ acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags) return_ACPI_STATUS(AE_OK); } - -/****************************************************************************** - * - * FUNCTION: acpi_tb_map - * - * PARAMETERS: Address - Address to be mapped - * Length - Length to be mapped - * Flags - Logical or physical addressing mode - * - * RETURN: Pointer to mapped region - * - * DESCRIPTION: Maps memory according to flag - * - *****************************************************************************/ - -void *acpi_tb_map(acpi_physical_address address, u32 length, u32 flags) -{ - - if (flags == ACPI_TABLE_ORIGIN_MAPPED) { - return (acpi_os_map_memory(address, length)); - } else { - return (ACPI_CAST_PTR(void, address)); - } -} - -/****************************************************************************** - * - * FUNCTION: acpi_tb_unmap - * - * PARAMETERS: Pointer - To mapped region - * Length - Length to be unmapped - * Flags - Logical or physical addressing mode - * - * RETURN: None - * - * DESCRIPTION: Unmaps memory according to flag - * - *****************************************************************************/ - -void acpi_tb_unmap(void *pointer, u32 length, u32 flags) -{ - - if (flags == ACPI_TABLE_ORIGIN_MAPPED) { - acpi_os_unmap_memory(pointer, length); - } -} diff --git a/drivers/acpi/tables/tbxface.c b/drivers/acpi/tables/tbxface.c index 9d451e8a4e4..77224bd0667 100644 --- a/drivers/acpi/tables/tbxface.c +++ b/drivers/acpi/tables/tbxface.c @@ -220,16 +220,25 @@ acpi_status acpi_load_table(struct acpi_table_header *table_ptr) { acpi_status status; acpi_native_uint table_index; + struct acpi_table_desc table_desc; + + if (!table_ptr) + return AE_BAD_PARAMETER; + + ACPI_MEMSET(&table_desc, 0, sizeof(struct acpi_table_desc)); + table_desc.pointer = table_ptr; + table_desc.length = table_ptr->length; + table_desc.flags = ACPI_TABLE_ORIGIN_UNKNOWN; /* * Install the new table into the local data structures */ - status = acpi_tb_add_table(table_ptr, &table_index); + status = acpi_tb_add_table(&table_desc, &table_index); if (ACPI_FAILURE(status)) { - return_ACPI_STATUS(status); + return status; } status = acpi_ns_load_table(table_index, acpi_gbl_root_node); - return_ACPI_STATUS(status); + return status; } ACPI_EXPORT_SYMBOL(acpi_load_table) @@ -240,8 +249,7 @@ ACPI_EXPORT_SYMBOL(acpi_load_table) * * PARAMETERS: Signature - ACPI signature of needed table * Instance - Which instance (for SSDTs) - * out_table_header - Where the pointer to the table header - * is returned + * out_table_header - The pointer to the table header to fill * * RETURN: Status and pointer to mapped table header * @@ -254,10 +262,11 @@ ACPI_EXPORT_SYMBOL(acpi_load_table) acpi_status acpi_get_table_header(char *signature, acpi_native_uint instance, - struct acpi_table_header **out_table_header) + struct acpi_table_header *out_table_header) { acpi_native_uint i; acpi_native_uint j; + struct acpi_table_header *header; /* Parameter validation */ @@ -279,16 +288,31 @@ acpi_get_table_header(char *signature, continue; } - *out_table_header = - acpi_tb_map(acpi_gbl_root_table_list.tables[i].address, - (u32) sizeof(struct acpi_table_header), - acpi_gbl_root_table_list.tables[i]. - flags & ACPI_TABLE_ORIGIN_MASK); - - if (!(*out_table_header)) { - return (AE_NO_MEMORY); + if (!acpi_gbl_root_table_list.tables[i].pointer) { + if ((acpi_gbl_root_table_list.tables[i]. + flags & ACPI_TABLE_ORIGIN_MASK) == + ACPI_TABLE_ORIGIN_MAPPED) { + header = + acpi_os_map_memory(acpi_gbl_root_table_list. + tables[i].address, + sizeof(struct + acpi_table_header)); + if (!header) { + return AE_NO_MEMORY; + } + ACPI_MEMCPY(out_table_header, header, + sizeof(struct acpi_table_header)); + acpi_os_unmap_memory(header, + sizeof(struct + acpi_table_header)); + } else { + return AE_NOT_FOUND; + } + } else { + ACPI_MEMCPY(out_table_header, + acpi_gbl_root_table_list.tables[i].pointer, + sizeof(struct acpi_table_header)); } - return (AE_OK); } -- cgit v1.2.3