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| author | Bob Moore <robert.moore@intel.com> | 2015-07-01 06:44:23 (GMT) |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-07-01 21:17:54 (GMT) |
| commit | fe536995f2fe26fff111a9a06bf3f71e179c92cf (patch) | |
| tree | 3a5bc345631e851b0fc068dce8556b75ee41f73d /drivers/acpi/acpica | |
| parent | 8f6f03610483962a9ebfaf38592909a3f0bcfa53 (diff) | |
| download | linux-fe536995f2fe26fff111a9a06bf3f71e179c92cf.tar.xz | |
ACPICA: Namespace: Add support of OSDT table
ACPICA commit 27415c82fcecf467446f66d1007a0691cc5f3709
This patch adds OSDT (Override System Definition Table) support.
When OSDT is loaded, conflict namespace objects will be overridden
by the AML interpreter. Bob Moore, Lv Zheng.
Link: https://github.com/acpica/acpica/commit/27415c82
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/acpica')
| -rw-r--r-- | drivers/acpi/acpica/nsparse.c | 7 | ||||
| -rw-r--r-- | drivers/acpi/acpica/tbxfload.c | 6 | ||||
| -rw-r--r-- | drivers/acpi/acpica/utmisc.c | 3 |
3 files changed, 14 insertions, 2 deletions
diff --git a/drivers/acpi/acpica/nsparse.c b/drivers/acpi/acpica/nsparse.c index c95a119..57a4cfe 100644 --- a/drivers/acpi/acpica/nsparse.c +++ b/drivers/acpi/acpica/nsparse.c @@ -117,6 +117,13 @@ acpi_ns_one_complete_parse(u32 pass_number, (u8) pass_number); } + /* Found OSDT table, enable the namespace override feature */ + + if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_OSDT) && + pass_number == ACPI_IMODE_LOAD_PASS1) { + walk_state->namespace_override = TRUE; + } + if (ACPI_FAILURE(status)) { acpi_ds_delete_walk_state(walk_state); goto cleanup; diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c index b63e35d..960bd99 100644 --- a/drivers/acpi/acpica/tbxfload.c +++ b/drivers/acpi/acpica/tbxfload.c @@ -173,7 +173,11 @@ static acpi_status acpi_tb_load_namespace(void) && !ACPI_COMPARE_NAME(& (acpi_gbl_root_table_list.tables[i]. - signature), ACPI_SIG_PSDT)) + signature), ACPI_SIG_PSDT) + && + !ACPI_COMPARE_NAME(& + (acpi_gbl_root_table_list.tables[i]. + signature), ACPI_SIG_OSDT)) || ACPI_FAILURE(acpi_tb_validate_table (&acpi_gbl_root_table_list.tables[i]))) { diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c index cbb7034..28099e2 100644 --- a/drivers/acpi/acpica/utmisc.c +++ b/drivers/acpi/acpica/utmisc.c @@ -97,7 +97,8 @@ u8 acpi_ut_is_aml_table(struct acpi_table_header *table) if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_DSDT) || ACPI_COMPARE_NAME(table->signature, ACPI_SIG_PSDT) || - ACPI_COMPARE_NAME(table->signature, ACPI_SIG_SSDT)) { + ACPI_COMPARE_NAME(table->signature, ACPI_SIG_SSDT) || + ACPI_COMPARE_NAME(table->signature, ACPI_SIG_OSDT)) { return (TRUE); } |