ACPI_MODULE_NAME("tbutils")
/* Local prototypes */
-static void acpi_tb_parse_fadt(struct acpi_table_fadt *fadt, u8 flags);
+static void acpi_tb_parse_fadt(acpi_native_uint table_index, u8 flags);
+
+static void acpi_tb_convert_fadt(void);
+
+static void
+acpi_tb_install_table(acpi_physical_address address,
+ u8 flags, char *signature, acpi_native_uint table_index);
static void inline
acpi_tb_init_generic_address(struct acpi_generic_address *new_gas_struct,
- u8 bit_width, acpi_physical_address address);
+ u8 bit_width, u64 address);
+
+/* Table used for conversion of FADT to common format */
+
+typedef struct acpi_fadt_conversion {
+ u8 target;
+ u8 source;
+ u8 length;
+
+} acpi_fadt_conversion;
+
+static struct acpi_fadt_conversion fadt_conversion_table[] = {
+ {ACPI_FADT_OFFSET(xpm1a_event_block),
+ ACPI_FADT_OFFSET(pm1a_event_block),
+ ACPI_FADT_OFFSET(pm1_event_length)},
+ {ACPI_FADT_OFFSET(xpm1b_event_block),
+ ACPI_FADT_OFFSET(pm1b_event_block),
+ ACPI_FADT_OFFSET(pm1_event_length)},
+ {ACPI_FADT_OFFSET(xpm1a_control_block),
+ ACPI_FADT_OFFSET(pm1a_control_block),
+ ACPI_FADT_OFFSET(pm1_control_length)},
+ {ACPI_FADT_OFFSET(xpm1b_control_block),
+ ACPI_FADT_OFFSET(pm1b_control_block),
+ ACPI_FADT_OFFSET(pm1_control_length)},
+ {ACPI_FADT_OFFSET(xpm2_control_block),
+ ACPI_FADT_OFFSET(pm2_control_block),
+ ACPI_FADT_OFFSET(pm2_control_length)},
+ {ACPI_FADT_OFFSET(xpm_timer_block), ACPI_FADT_OFFSET(pm_timer_block),
+ ACPI_FADT_OFFSET(pm_timer_length)},
+ {ACPI_FADT_OFFSET(xgpe0_block), ACPI_FADT_OFFSET(gpe0_block),
+ ACPI_FADT_OFFSET(gpe0_block_length)},
+ {ACPI_FADT_OFFSET(xgpe1_block), ACPI_FADT_OFFSET(gpe1_block),
+ ACPI_FADT_OFFSET(gpe1_block_length)}
+};
+
+#define ACPI_FADT_CONVERSION_ENTRIES (sizeof (fadt_conversion_table) / sizeof (struct acpi_fadt_conversion))
/*******************************************************************************
*
*
* RETURN: None
*
- * DESCRIPTION: Print an ACPI table header
+ * DESCRIPTION: Print an ACPI table header. Special cases for FACS and RSDP.
*
******************************************************************************/
struct acpi_table_header *header)
{
- ACPI_INFO((AE_INFO,
- "%4.4s @ 0x%p Length 0x%04X (v%3.3d %6.6s %8.8s 0x%08X %4.4s 0x%08X)",
- header->signature, ACPI_CAST_PTR(void, address),
- header->length, header->revision, header->oem_id,
- header->oem_table_id, header->oem_revision,
- header->asl_compiler_id, header->asl_compiler_revision));
+ if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_FACS)) {
+
+ /* FACS only has signature and length fields of common table header */
+
+ ACPI_INFO((AE_INFO, "%4.4s @ 0x%p/0x%04X",
+ header->signature, ACPI_CAST_PTR(void, address),
+ header->length));
+ } else if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_RSDP)) {
+
+ /* RSDP has no common fields */
+
+ ACPI_INFO((AE_INFO, "RSDP @ 0x%p/0x%04X (v%3.3d %6.6s)",
+ ACPI_CAST_PTR(void, address),
+ (((struct acpi_table_rsdp *)header)->revision > 0) ?
+ ((struct acpi_table_rsdp *)header)->length : 20,
+ ((struct acpi_table_rsdp *)header)->revision,
+ ((struct acpi_table_rsdp *)header)->oem_id));
+ } else {
+ ACPI_INFO((AE_INFO,
+ "%4.4s @ 0x%p/0x%04X (v%3.3d %6.6s %8.8s 0x%08X %4.4s 0x%08X)",
+ header->signature, ACPI_CAST_PTR(void, address),
+ header->length, header->revision, header->oem_id,
+ header->oem_table_id, header->oem_revision,
+ header->asl_compiler_id,
+ header->asl_compiler_revision));
+ }
}
/*******************************************************************************
static void inline
acpi_tb_init_generic_address(struct acpi_generic_address *new_gas_struct,
- u8 bit_width, acpi_physical_address address)
+ u8 bit_width, u64 address)
{
ACPI_STORE_ADDRESS(new_gas_struct->address, address);
new_gas_struct->access_width = 0;
}
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_validate_checksum
+ *
+ * PARAMETERS: Table - ACPI table to verify
+ * Length - Length of entire table
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Verifies that the table checksums to zero. Optionally returns
+ * exception on bad checksum.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_tb_verify_checksum(struct acpi_table_header *table, u32 length)
+{
+ u8 checksum;
+
+ /* Compute the checksum on the table */
+
+ checksum = acpi_tb_checksum(ACPI_CAST_PTR(u8, table), length);
+
+ /* Checksum ok? (should be zero) */
+
+ if (checksum) {
+ ACPI_WARNING((AE_INFO,
+ "Incorrect checksum in table [%4.4s] - %2.2X, should be %2.2X",
+ table->signature, table->checksum,
+ (u8) (table->checksum - checksum)));
+
+#if (ACPI_CHECKSUM_ABORT)
+
+ return (AE_BAD_CHECKSUM);
+#endif
+ }
+
+ return (AE_OK);
+}
+
/*******************************************************************************
*
* FUNCTION: acpi_tb_checksum
*
* FUNCTION: acpi_tb_convert_fadt
*
- * PARAMETERS: Fadt - FADT table to be converted
+ * PARAMETERS: None, uses acpi_gbl_FADT
*
* RETURN: None
*
- * DESCRIPTION: Converts a BIOS supplied ACPI 1.0 FADT to a local
- * ACPI 2.0 FADT. If the BIOS supplied a 2.0 FADT then it is simply
- * copied to the local FADT. The ACPI CA software uses this
- * local FADT. Thus a significant amount of special #ifdef
- * type codeing is saved.
+ * DESCRIPTION: Converts all versions of the FADT to a common internal format.
+ *
+ * NOTE: acpi_gbl_FADT must be of size (struct acpi_table_fadt), and must contain
+ * a copy of the actual FADT.
+ *
+ * ACPICA will use the "X" fields of the FADT for all addresses.
+ *
+ * "X" fields are optional extensions to the original V1.0 fields. Even if
+ * they are present in the structure, they can be optionally not used by
+ * setting them to zero. Therefore, we must selectively expand V1.0 fields
+ * if the corresponding X field is zero.
+ *
+ * For ACPI 1.0 FADTs, all address fields are expanded to the corresponding
+ * "X" fields.
+ *
+ * For ACPI 2.0 FADTs, any "X" fields that are NULL are filled in by
+ * expanding the corresponding ACPI 1.0 field.
*
******************************************************************************/
-void acpi_tb_convert_fadt(struct acpi_table_fadt *fadt)
+static void acpi_tb_convert_fadt(void)
{
+ u8 pm1_register_length;
+ struct acpi_generic_address *target;
+ acpi_native_uint i;
+
+ /* Expand the FACS and DSDT addresses as necessary */
- /*
- * Convert table pointers to 64-bit fields
- */
if (!acpi_gbl_FADT.Xfacs) {
acpi_gbl_FADT.Xfacs = (u64) acpi_gbl_FADT.facs;
}
}
/*
- * Convert the V1.0 block addresses to V2.0 GAS structures
+ * Expand the V1.0 addresses to the "X" generic address structs,
+ * as necessary.
*/
- acpi_tb_init_generic_address(&acpi_gbl_FADT.xpm1a_event_block,
- acpi_gbl_FADT.pm1_event_length,
- (acpi_physical_address) acpi_gbl_FADT.
- pm1a_event_block);
- acpi_tb_init_generic_address(&acpi_gbl_FADT.xpm1b_event_block,
- acpi_gbl_FADT.pm1_event_length,
- (acpi_physical_address) acpi_gbl_FADT.
- pm1b_event_block);
- acpi_tb_init_generic_address(&acpi_gbl_FADT.xpm1a_control_block,
- acpi_gbl_FADT.pm1_control_length,
- (acpi_physical_address) acpi_gbl_FADT.
- pm1a_control_block);
- acpi_tb_init_generic_address(&acpi_gbl_FADT.xpm1b_control_block,
- acpi_gbl_FADT.pm1_control_length,
- (acpi_physical_address) acpi_gbl_FADT.
- pm1b_control_block);
- acpi_tb_init_generic_address(&acpi_gbl_FADT.xpm2_control_block,
- acpi_gbl_FADT.pm2_control_length,
- (acpi_physical_address) acpi_gbl_FADT.
- pm2_control_block);
- acpi_tb_init_generic_address(&acpi_gbl_FADT.xpm_timer_block,
- acpi_gbl_FADT.pm_timer_length,
- (acpi_physical_address) acpi_gbl_FADT.
- pm_timer_block);
- acpi_tb_init_generic_address(&acpi_gbl_FADT.xgpe0_block, 0,
- (acpi_physical_address) acpi_gbl_FADT.
- gpe0_block);
- acpi_tb_init_generic_address(&acpi_gbl_FADT.xgpe1_block, 0,
- (acpi_physical_address) acpi_gbl_FADT.
- gpe1_block);
+ for (i = 0; i < ACPI_FADT_CONVERSION_ENTRIES; i++) {
+ target =
+ ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT,
+ fadt_conversion_table[i].target);
+
+ if (!target->address) {
+ acpi_tb_init_generic_address(target,
+ *ACPI_ADD_PTR(u8,
+ &acpi_gbl_FADT,
+ fadt_conversion_table
+ [i].length),
+ *ACPI_ADD_PTR(u64,
+ &acpi_gbl_FADT,
+ fadt_conversion_table
+ [i].source));
+ }
+ }
/*
- * Create separate GAS structs for the PM1 Enable registers
+ * Calculate separate GAS structs for the PM1 Enable registers.
+ * These addresses do not appear (directly) in the FADT, so it is
+ * useful to calculate them once, here.
*/
+ pm1_register_length = (u8) ACPI_DIV_2(acpi_gbl_FADT.pm1_event_length);
+
+ /* PM1A is required */
+
acpi_tb_init_generic_address(&acpi_gbl_xpm1a_enable,
- (u8) ACPI_DIV_2(acpi_gbl_FADT.
- pm1_event_length),
- (acpi_physical_address)
- (acpi_gbl_FADT.xpm1a_event_block.address +
- ACPI_DIV_2(acpi_gbl_FADT.
- pm1_event_length)));
+ pm1_register_length,
+ (u64) (acpi_gbl_FADT.xpm1a_event_block.
+ address + pm1_register_length));
+
+ /* PM1B is optional; leave null if not present */
- /*
- * PM1B is optional; leave null if not present
- */
if (acpi_gbl_FADT.xpm1b_event_block.address) {
acpi_tb_init_generic_address(&acpi_gbl_xpm1b_enable,
- (u8) ACPI_DIV_2(acpi_gbl_FADT.
- pm1_event_length),
- (acpi_physical_address)
- (acpi_gbl_FADT.xpm1b_event_block.
- address +
- ACPI_DIV_2(acpi_gbl_FADT.
- pm1_event_length)));
+ pm1_register_length,
+ (u64) (acpi_gbl_FADT.
+ xpm1b_event_block.address +
+ pm1_register_length));
}
/* Global FADT is the new common V2.0 FADT */
/*******************************************************************************
*
- * FUNCTION: acpi_tb_parse_fadt
+ * FUNCTION: acpi_tb_install_table
*
- * PARAMETERS: Fadt - Pointer to FADT table
- * Flags - Flags
+ * PARAMETERS: Address - Physical address of DSDT or FACS
+ * Flags - Flags
+ * Signature - Table signature, NULL if no need to
+ * match
+ * table_index - Index into root table array
*
- * RETURN: none
+ * RETURN: None
*
- * DESCRIPTION: This function is called to initialise the FADT, DSDT and FACS
- * tables (FADT contains the addresses of the DSDT and FACS)
+ * DESCRIPTION: Install an ACPI table into the global data structure.
*
******************************************************************************/
-static void acpi_tb_parse_fadt(struct acpi_table_fadt *fadt, u8 flags)
+static void
+acpi_tb_install_table(acpi_physical_address address,
+ u8 flags, char *signature, acpi_native_uint table_index)
{
- acpi_physical_address dsdt_address =
- (acpi_physical_address) fadt->Xdsdt;
- acpi_physical_address facs_address =
- (acpi_physical_address) fadt->Xfacs;
struct acpi_table_header *table;
- if (!dsdt_address) {
- goto no_dsdt;
+ if (!address) {
+ ACPI_ERROR((AE_INFO,
+ "Null physical address for ACPI table [%s]",
+ signature));
+ return;
}
- table =
- acpi_os_map_memory(dsdt_address, sizeof(struct acpi_table_header));
+ /* Map just the table header */
+
+ table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
if (!table) {
- goto no_dsdt;
+ return;
+ }
+
+ /* If a particular signature is expected, signature must match */
+
+ if (signature && !ACPI_COMPARE_NAME(table->signature, signature)) {
+ ACPI_ERROR((AE_INFO,
+ "Invalid signature 0x%X for ACPI table [%s]",
+ *ACPI_CAST_PTR(u32, table->signature), signature));
+ goto unmap_and_exit;
}
- /* Initialize the DSDT table */
+ /* Initialize the table entry */
+
+ acpi_gbl_root_table_list.tables[table_index].address = address;
+ acpi_gbl_root_table_list.tables[table_index].length = table->length;
+ acpi_gbl_root_table_list.tables[table_index].flags = flags;
ACPI_MOVE_32_TO_32(&
- (acpi_gbl_root_table_list.
- tables[ACPI_TABLE_INDEX_DSDT].signature),
- ACPI_SIG_DSDT);
+ (acpi_gbl_root_table_list.tables[table_index].
+ signature), table->signature);
- acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].address =
- dsdt_address;
- acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].length =
- table->length;
- acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_DSDT].flags = flags;
+ acpi_tb_print_table_header(address, table);
- acpi_tb_print_table_header(dsdt_address, table);
+ if (table_index == ACPI_TABLE_INDEX_DSDT) {
- /* Global integer width is based upon revision of the DSDT */
+ /* Global integer width is based upon revision of the DSDT */
- acpi_ut_set_integer_width(table->revision);
+ acpi_ut_set_integer_width(table->revision);
+ }
+
+ unmap_and_exit:
acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
+}
- no_dsdt:
- if (!facs_address) {
- return;
- }
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_tb_parse_fadt
+ *
+ * PARAMETERS: table_index - Index for the FADT
+ * Flags - Flags
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Initialize the FADT, DSDT and FACS tables
+ * (FADT contains the addresses of the DSDT and FACS)
+ *
+ ******************************************************************************/
+
+static void acpi_tb_parse_fadt(acpi_native_uint table_index, u8 flags)
+{
+ u32 length;
+ struct acpi_table_header *table;
+
+ /*
+ * Special case for the FADT because of multiple versions and the fact
+ * that it contains pointers to both the DSDT and FACS tables.
+ *
+ * Get a local copy of the FADT and convert it to a common format
+ * Map entire FADT, assumed to be smaller than one page.
+ */
+ length = acpi_gbl_root_table_list.tables[table_index].length;
table =
- acpi_os_map_memory(facs_address, sizeof(struct acpi_table_header));
+ acpi_os_map_memory(acpi_gbl_root_table_list.tables[table_index].
+ address, length);
if (!table) {
return;
}
- /* Initialize the FACS table */
+ /*
+ * Validate the FADT checksum before we copy the table. Ignore
+ * checksum error as we want to try to get the DSDT and FACS.
+ */
+ (void)acpi_tb_verify_checksum(table, length);
- ACPI_MOVE_32_TO_32(&
- (acpi_gbl_root_table_list.
- tables[ACPI_TABLE_INDEX_FACS].signature),
- ACPI_SIG_FACS);
+ /* Copy the entire FADT locally */
- acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_FACS].address =
- facs_address;
- acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_FACS].length =
- table->length;
- acpi_gbl_root_table_list.tables[ACPI_TABLE_INDEX_FACS].flags = flags;
+ ACPI_MEMSET(&acpi_gbl_FADT, sizeof(struct acpi_table_fadt), 0);
- ACPI_INFO((AE_INFO, "%4.4s @ 0x%p",
- table->signature, ACPI_CAST_PTR(void, facs_address)));
+ ACPI_MEMCPY(&acpi_gbl_FADT, table,
+ ACPI_MIN(length, sizeof(struct acpi_table_fadt)));
+ acpi_os_unmap_memory(table, length);
- acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
+ /* Convert local FADT to the common internal format */
+
+ acpi_tb_convert_fadt();
+
+ /* Extract the DSDT and FACS tables from the FADT */
+
+ acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xdsdt,
+ flags, ACPI_SIG_DSDT, ACPI_TABLE_INDEX_DSDT);
+
+ acpi_tb_install_table((acpi_physical_address) acpi_gbl_FADT.Xfacs,
+ flags, ACPI_SIG_FACS, ACPI_TABLE_INDEX_FACS);
}
/*******************************************************************************
*
******************************************************************************/
-acpi_status acpi_tb_parse_root_table(struct acpi_table_rsdp *rsdp, u8 flags)
+acpi_status
+acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags)
{
+ struct acpi_table_rsdp *rsdp;
+ acpi_native_uint table_entry_size;
+ acpi_native_uint i;
+ u32 table_count;
struct acpi_table_header *table;
acpi_physical_address address;
u32 length;
u8 *table_entry;
- acpi_native_uint i;
- acpi_native_uint pointer_size;
- u32 table_count;
- u8 checksum;
acpi_status status;
ACPI_FUNCTION_TRACE(tb_parse_root_table);
+ /*
+ * Map the entire RSDP and extract the address of the RSDT or XSDT
+ */
+ rsdp = acpi_os_map_memory(rsdp_address, sizeof(struct acpi_table_rsdp));
+ if (!rsdp) {
+ return_ACPI_STATUS(AE_NO_MEMORY);
+ }
+
+ acpi_tb_print_table_header(rsdp_address,
+ ACPI_CAST_PTR(struct acpi_table_header,
+ rsdp));
+
/* Differentiate between RSDT and XSDT root tables */
if (rsdp->revision > 1 && rsdp->xsdt_physical_address) {
* XSDT if the revision is > 1 and the XSDT pointer is present, as per
* the ACPI specification.
*/
- address = (acpi_native_uint) rsdp->xsdt_physical_address;
- pointer_size = sizeof(u64);
+ address = (acpi_physical_address) rsdp->xsdt_physical_address;
+ table_entry_size = sizeof(u64);
} else {
/* Root table is an RSDT (32-bit physical addresses) */
- address = (acpi_native_uint) rsdp->rsdt_physical_address;
- pointer_size = sizeof(u32);
+ address = (acpi_physical_address) rsdp->rsdt_physical_address;
+ table_entry_size = sizeof(u32);
}
- /* Map the table header to get the full table length */
+ /*
+ * It is not possible to map more than one entry in some environments,
+ * so unmap the RSDP here before mapping other tables
+ */
+ acpi_os_unmap_memory(rsdp, sizeof(struct acpi_table_rsdp));
+
+ /* Map the RSDT/XSDT table header to get the full table length */
table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
if (!table) {
- return (AE_NO_MEMORY);
+ return_ACPI_STATUS(AE_NO_MEMORY);
}
+ acpi_tb_print_table_header(address, table);
+
/* Get the length of the full table, verify length and map entire table */
length = table->length;
if (length < sizeof(struct acpi_table_header)) {
ACPI_ERROR((AE_INFO, "Invalid length 0x%X in RSDT/XSDT",
length));
- return (AE_INVALID_TABLE_LENGTH);
+ return_ACPI_STATUS(AE_INVALID_TABLE_LENGTH);
}
table = acpi_os_map_memory(address, length);
if (!table) {
- return (AE_NO_MEMORY);
+ return_ACPI_STATUS(AE_NO_MEMORY);
}
/* Validate the root table checksum */
- checksum = acpi_tb_checksum(ACPI_CAST_PTR(u8, table), length);
-#if (ACPI_CHECKSUM_ABORT)
-
- if (checksum) {
+ status = acpi_tb_verify_checksum(table, length);
+ if (ACPI_FAILURE(status)) {
acpi_os_unmap_memory(table, length);
- return (AE_BAD_CHECKSUM);
+ return_ACPI_STATUS(status);
}
-#endif
-
- acpi_tb_print_table_header(address, table);
/* Calculate the number of tables described in the root table */
table_count =
- (table->length - sizeof(struct acpi_table_header)) / pointer_size;
-
- /* Setup loop */
+ (table->length -
+ sizeof(struct acpi_table_header)) / table_entry_size;
+ /*
+ * First two entries in the table array are reserved for the DSDT and FACS,
+ * which are not actually present in the RSDT/XSDT - they come from the FADT
+ */
table_entry =
ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header);
acpi_gbl_root_table_list.count = 2;
/*
- * Initialize the ACPI table entries
- * First two entries in the table array are reserved for the DSDT and FACS
+ * Initialize the root table array from the RSDT/XSDT
*/
- for (i = 0; i < table_count; ++i, table_entry += pointer_size) {
-
- /* Ensure there is room for another table entry */
-
+ for (i = 0; i < table_count; i++) {
if (acpi_gbl_root_table_list.count >=
acpi_gbl_root_table_list.size) {
+
+ /* There is no more room in the root table array, attempt resize */
+
status = acpi_tb_resize_root_table_list();
if (ACPI_FAILURE(status)) {
ACPI_WARNING((AE_INFO,
}
}
- /* Get the physical address (32-bit for RSDT, 64-bit for XSDT) */
-
- if (pointer_size == sizeof(u32)) {
+ /*
+ * Get the table physical address (32-bit for RSDT, 64-bit for XSDT)
+ */
+ if ((table_entry_size == sizeof(u32)) ||
+ (sizeof(acpi_physical_address) == sizeof(u32))) {
+ /*
+ * 32-bit platform, RSDT: Move 32-bit to 32-bit
+ * 32-bit platform, XSDT: Truncate 64-bit to 32-bit
+ * 64-bit platform, RSDT: Expand 32-bit to 64-bit
+ *
+ * Note: Addresses are 32-bit aligned in both RSDT and XSDT
+ */
acpi_gbl_root_table_list.
tables[acpi_gbl_root_table_list.count].address =
(acpi_physical_address) (*ACPI_CAST_PTR
(u32, table_entry));
} else {
- acpi_gbl_root_table_list.
- tables[acpi_gbl_root_table_list.count].address =
- (acpi_physical_address) (*ACPI_CAST_PTR
- (u64, table_entry));
+ /*
+ * 64-bit platform, XSDT: Move 64-bit to 64-bit
+ *
+ * Note: 64-bit addresses are only 32-bit aligned in the XSDT
+ */
+ ACPI_MOVE_64_TO_64(&acpi_gbl_root_table_list.
+ tables[acpi_gbl_root_table_list.
+ count].address, table_entry);
}
+ table_entry += table_entry_size;
acpi_gbl_root_table_list.count++;
}
*/
acpi_os_unmap_memory(table, length);
- /* Initialize all tables other than the DSDT and FACS */
-
+ /*
+ * Complete the initialization of the root table array by examining
+ * the header of each table
+ */
for (i = 2; i < acpi_gbl_root_table_list.count; i++) {
- address = acpi_gbl_root_table_list.tables[i].address;
- length = sizeof(struct acpi_table_header);
-
- table = acpi_os_map_memory(address, length);
- if (!table) {
- continue;
- }
-
- acpi_gbl_root_table_list.tables[i].length = table->length;
- acpi_gbl_root_table_list.tables[i].flags = flags;
-
- ACPI_MOVE_32_TO_32(&
- (acpi_gbl_root_table_list.tables[i].
- signature), table->signature);
-
- acpi_tb_print_table_header(address, table);
-
- /*
- * Special case for the FADT because of multiple versions -
- * get a local copy and convert to common format
- */
- if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_FADT)) {
- acpi_os_unmap_memory(table, length);
- length = table->length;
-
- table = acpi_os_map_memory(address, length);
- if (!table) {
- continue;
- }
-
- /* Copy the entire FADT locally */
-
- ACPI_MEMCPY(&acpi_gbl_FADT, table,
- ACPI_MIN(table->length,
- sizeof(struct acpi_table_fadt)));
+ acpi_tb_install_table(acpi_gbl_root_table_list.tables[i].
+ address, flags, NULL, i);
- /* Small table means old revision, convert to new */
+ /* Special case for FADT - get the DSDT and FACS */
- if (table->length < sizeof(struct acpi_table_fadt)) {
- acpi_tb_convert_fadt(ACPI_CAST_PTR
- (struct acpi_table_fadt,
- table));
- }
-
- /* Unmap original FADT */
-
- acpi_os_unmap_memory(table, length);
- acpi_tb_parse_fadt(&acpi_gbl_FADT, flags);
- } else {
- acpi_os_unmap_memory(table, length);
+ if (ACPI_COMPARE_NAME
+ (&acpi_gbl_root_table_list.tables[i].signature,
+ ACPI_SIG_FADT)) {
+ acpi_tb_parse_fadt(i, flags);
}
}
projects / linux-2.6 / commitdiff