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authorLv Zheng <lv.zheng@intel.com>2016-12-14 15:04:33 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-12-21 02:36:38 +0100
commit66360faa4333babc53836c7b59a0cff68cb0a9c6 (patch)
treeb7c895a9a106ce6457b1a23697e2b47e6e5d5e1d /drivers/acpi
parent174cc7187e6f088942c8e74daa7baff7b44b33c9 (diff)
ACPICA: Tables: Allow FADT to be customized with virtual address
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>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/acpica/tbfadt.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index 5fb838e592dc..81473a4880ce 100644
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -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 */