From: Jes Sorensen <jes@trained-monkey.org>
Add support for using the bit address for the DSDT table which we need on
some of the systems. The old code only supported a 32 bit physical
address.
---
drivers/acpi/tables.c | 13 ++++++++++---
1 files changed, 10 insertions(+), 3 deletions(-)
diff -puN drivers/acpi/tables.c~acpi-support-FADT-rev3-XDSDT-table drivers/acpi/tables.c
--- 25/drivers/acpi/tables.c~acpi-support-FADT-rev3-XDSDT-table 2004-01-23 01:24:20.000000000 -0800
+++ 25-akpm/drivers/acpi/tables.c 2004-01-23 01:24:20.000000000 -0800
@@ -276,10 +276,17 @@ acpi_get_table_header_early (
/* Map the DSDT header via the pointer in the FADT */
if (id == ACPI_DSDT) {
- struct acpi_table_fadt *fadt = (struct acpi_table_fadt *) *header;
+ struct fadt_descriptor_rev2 *fadt = (struct fadt_descriptor_rev2 *) *header;
+
+ if (fadt->revision == 3 && fadt->Xdsdt) {
+ *header = (void *) __acpi_map_table(fadt->Xdsdt,
+ sizeof(struct acpi_table_header));
+ } else if (fadt->V1_dsdt) {
+ *header = (void *) __acpi_map_table(fadt->V1_dsdt,
+ sizeof(struct acpi_table_header));
+ } else
+ *header = 0;
- *header = (void *) __acpi_map_table(fadt->dsdt_addr,
- sizeof(struct acpi_table_header));
if (!*header) {
printk(KERN_WARNING PREFIX "Unable to map DSDT\n");
return -ENODEV;
_