struct acpi_table_header *header)
{
+ /*
+ * The reason that the Address is cast to a void pointer is so that we
+ * can use %p which will work properly on both 32-bit and 64-bit hosts.
+ */
if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_FACS)) {
- /* FACS only has signature and length fields of common table header */
+ /* FACS only has signature and length fields */
- ACPI_INFO((AE_INFO, "%4.4s %08lX, %04X",
- header->signature, (unsigned long)address,
+ ACPI_INFO((AE_INFO, "%4.4s %p %05X",
+ 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 %08lX, %04X (r%d %6.6s)",
- (unsigned long)address,
+ ACPI_INFO((AE_INFO, "RSDP %p %05X (v%.2d %6.6s)",
+ ACPI_CAST_PTR (void, address),
(ACPI_CAST_PTR(struct acpi_table_rsdp, header)->
revision >
0) ? ACPI_CAST_PTR(struct acpi_table_rsdp,
/* Standard ACPI table with full common header */
ACPI_INFO((AE_INFO,
- "%4.4s %08lX, %04X (r%d %6.6s %8.8s %8X %4.4s %8X)",
- header->signature, (unsigned long)address,
+ "%4.4s %p %05X (v%.2d %6.6s %8.8s %08X %4.4s %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,
* FUNCTION: acpi_tb_install_table
*
* 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
*
- * DESCRIPTION: Install an ACPI table into the global data structure.
+ * DESCRIPTION: Install an ACPI table into the global data structure. The
+ * table override mechanism is implemented here to allow the host
+ * OS to replace any table before it is installed in the root
+ * table array.
*
******************************************************************************/
void
acpi_tb_install_table(acpi_physical_address address,
- u8 flags, char *signature, u32 table_index)
+ char *signature, u32 table_index)
{
- struct acpi_table_header *table;
+ u8 flags;
+ acpi_status status;
+ struct acpi_table_header *table_to_install;
+ struct acpi_table_header *mapped_table;
+ struct acpi_table_header *override_table = NULL;
if (!address) {
ACPI_ERROR((AE_INFO,
/* Map just the table header */
- table = acpi_os_map_memory(address, sizeof(struct acpi_table_header));
- if (!table) {
+ mapped_table =
+ acpi_os_map_memory(address, sizeof(struct acpi_table_header));
+ if (!mapped_table) {
return;
}
- /* If a particular signature is expected, signature must match */
+ /* If a particular signature is expected (DSDT/FACS), it must match */
- if (signature && !ACPI_COMPARE_NAME(table->signature, signature)) {
+ if (signature && !ACPI_COMPARE_NAME(mapped_table->signature, signature)) {
ACPI_ERROR((AE_INFO,
- "Invalid signature 0x%X for ACPI table [%s]",
- *ACPI_CAST_PTR(u32, table->signature), signature));
+ "Invalid signature 0x%X for ACPI table, expected [%s]",
+ *ACPI_CAST_PTR(u32, mapped_table->signature),
+ signature));
goto unmap_and_exit;
}
+ /*
+ * ACPI Table Override:
+ *
+ * Before we install the table, let the host OS override it with a new
+ * one if desired. Any table within the RSDT/XSDT can be replaced,
+ * including the DSDT which is pointed to by the FADT.
+ */
+ status = acpi_os_table_override(mapped_table, &override_table);
+ if (ACPI_SUCCESS(status) && override_table) {
+ ACPI_INFO((AE_INFO,
+ "%4.4s @ 0x%p Table override, replaced with:",
+ mapped_table->signature, ACPI_CAST_PTR(void,
+ address)));
+
+ acpi_gbl_root_table_list.tables[table_index].pointer =
+ override_table;
+ address = ACPI_PTR_TO_PHYSADDR(override_table);
+
+ table_to_install = override_table;
+ flags = ACPI_TABLE_ORIGIN_OVERRIDE;
+ } else {
+ table_to_install = mapped_table;
+ flags = ACPI_TABLE_ORIGIN_MAPPED;
+ }
+
/* 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].length =
+ table_to_install->length;
acpi_gbl_root_table_list.tables[table_index].flags = flags;
ACPI_MOVE_32_TO_32(&
(acpi_gbl_root_table_list.tables[table_index].
- signature), table->signature);
+ signature), table_to_install->signature);
- acpi_tb_print_table_header(address, table);
+ acpi_tb_print_table_header(address, table_to_install);
if (table_index == ACPI_TABLE_INDEX_DSDT) {
/* Global integer width is based upon revision of the DSDT */
- acpi_ut_set_integer_width(table->revision);
+ acpi_ut_set_integer_width(table_to_install->revision);
}
unmap_and_exit:
- acpi_os_unmap_memory(table, sizeof(struct acpi_table_header));
+ acpi_os_unmap_memory(mapped_table, sizeof(struct acpi_table_header));
}
/*******************************************************************************
} else {
/*
* 32-bit platform, XSDT: Truncate 64-bit to 32-bit and return
- * 64-bit platform, XSDT: Move (unaligned) 64-bit to local, return 64-bit
+ * 64-bit platform, XSDT: Move (unaligned) 64-bit to local,
+ * return 64-bit
*/
ACPI_MOVE_64_TO_64(&address64, table_entry);
/* Will truncate 64-bit address to 32 bits, issue warning */
ACPI_WARNING((AE_INFO,
- "64-bit Physical Address in XSDT is too large (%8.8X%8.8X), truncating",
+ "64-bit Physical Address in XSDT is too large (%8.8X%8.8X),"
+ " truncating",
ACPI_FORMAT_UINT64(address64)));
}
#endif
* FUNCTION: acpi_tb_parse_root_table
*
* PARAMETERS: Rsdp - Pointer to the RSDP
- * Flags - Flags
*
* RETURN: Status
*
******************************************************************************/
acpi_status __init
-acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags)
+acpi_tb_parse_root_table(acpi_physical_address rsdp_address)
{
struct acpi_table_rsdp *rsdp;
u32 table_entry_size;
/* Calculate the number of tables described in the root table */
- table_count =
- (u32) ((table->length -
- sizeof(struct acpi_table_header)) / table_entry_size);
-
+ table_count = (u32)((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
+ * 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);
*/
for (i = 2; i < acpi_gbl_root_table_list.count; i++) {
acpi_tb_install_table(acpi_gbl_root_table_list.tables[i].
- address, flags, NULL, i);
+ address, NULL, i);
/* Special case for FADT - get the DSDT and FACS */
if (ACPI_COMPARE_NAME
(&acpi_gbl_root_table_list.tables[i].signature,
ACPI_SIG_FADT)) {
- acpi_tb_parse_fadt(i, flags);
+ acpi_tb_parse_fadt(i);
}
}
projects / linux-2.6-omap-h63xx.git / blobdiff