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ACPICA: Tables: Allow FADT to be customized with virtual address

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ACPICA commit d98de9ca14891130efc5dcdc871b97eb27b4b0f5

FADT parsing code requires FADT to be installed as
ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL, using new
acpi_tb_get_table()/acpi_tb_put_table(), other address types can also be allowed,
thus facilitates FADT customization with virtual address. Lv Zheng.

Link: https://github.com/acpica/acpica/commit/d98de9ca
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Lv Zheng 2016-12-14 15:04:33 +08:00 committed by Rafael J. Wysocki
parent 174cc7187e
commit 66360faa43
1 changed files with 7 additions and 7 deletions
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14
drivers/acpi/acpica/tbfadt.c
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@ -311,6 +311,8 @@ void acpi_tb_parse_fadt(void)
{
u32 length;
struct acpi_table_header *table;
struct acpi_table_desc *fadt_desc;
acpi_status status;
/*
* The FADT has multiple versions with different lengths,
@ -319,14 +321,12 @@ void acpi_tb_parse_fadt(void)
* 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[acpi_gbl_fadt_index].length;
table =
acpi_os_map_memory(acpi_gbl_root_table_list.
tables[acpi_gbl_fadt_index].address, length);
if (!table) {
fadt_desc = &acpi_gbl_root_table_list.tables[acpi_gbl_fadt_index];
status = acpi_tb_get_table(fadt_desc, &table);
if (ACPI_FAILURE(status)) {
return;
}
length = fadt_desc->length;
/*
* Validate the FADT checksum before we copy the table. Ignore
@ -340,7 +340,7 @@ void acpi_tb_parse_fadt(void)
/* All done with the real FADT, unmap it */
acpi_os_unmap_memory(table, length);
acpi_tb_put_table(fadt_desc);
/* Obtain the DSDT and FACS tables via their addresses within the FADT */