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authorLv Zheng <lv.zheng@intel.com>2016-02-19 14:17:05 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-02-24 14:14:50 +0100
commit9559130b11f05ddc1db14cfc3fe6ac25a1417a03 (patch)
tree3151435619d5a999c88bdeda16b58f2bb75a18a7 /drivers/acpi/acpica
parentcc82f18e8ccdd0968d90bcd5835684566f75598b (diff)
downloadlinux-9559130b11f05ddc1db14cfc3fe6ac25a1417a03.tar.bz2
ACPICA: ACPICA: Tune _REG evaluations order in the initialization steps
ACPICA commit 77e0c7a482ac30ef857cf3c33d075e5fe5b5e449 This patch tunes _REG evaluations to be later than all table loading facilities: 1. acpi_load_tables(): _REG is currently invoked after this function. 2. acpi_ns_exec_module_code_list(): this executes module level code, the execution should be a part of the table loading while we currently support this in a deferred way. 3. acpi_ns_initialize_objects(): this parses Region/Field/Buffer/Package where pkg_length primitive can be seen in the grammar, the parsing should be a part of the table loading while we currently support this in a deferred way. Control method evaluation should happen after loading the tables. So this patch changes the order of _REG evaluation when acpi_gbl_group_module_level_code experiment is enabled. Lv Zheng. Link: https://github.com/acpica/acpica/commit/77e0c7a4 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/utxfinit.c35
1 files changed, 18 insertions, 17 deletions
diff --git a/drivers/acpi/acpica/utxfinit.c b/drivers/acpi/acpica/utxfinit.c
index e1ffd7a125bb..94158301b6c1 100644
--- a/drivers/acpi/acpica/utxfinit.c
+++ b/drivers/acpi/acpica/utxfinit.c
@@ -262,23 +262,6 @@ acpi_status __init acpi_initialize_objects(u32 flags)
ACPI_FUNCTION_TRACE(acpi_initialize_objects);
- /*
- * Run all _REG methods
- *
- * Note: Any objects accessed by the _REG methods will be automatically
- * initialized, even if they contain executable AML (see the call to
- * acpi_ns_initialize_objects below).
- */
- acpi_gbl_reg_methods_enabled = TRUE;
- if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
- ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
- "[Init] Executing _REG OpRegion methods\n"));
-
- status = acpi_ev_initialize_op_regions();
- if (ACPI_FAILURE(status)) {
- return_ACPI_STATUS(status);
- }
- }
#ifdef ACPI_EXEC_APP
/*
* This call implements the "initialization file" option for acpi_exec.
@@ -319,6 +302,24 @@ acpi_status __init acpi_initialize_objects(u32 flags)
}
/*
+ * Run all _REG methods
+ *
+ * Note: Any objects accessed by the _REG methods will be automatically
+ * initialized, even if they contain executable AML (see the call to
+ * acpi_ns_initialize_objects below).
+ */
+ acpi_gbl_reg_methods_enabled = TRUE;
+ if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
+ ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+ "[Init] Executing _REG OpRegion methods\n"));
+
+ status = acpi_ev_initialize_op_regions();
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
+ }
+
+ /*
* Initialize all device objects in the namespace. This runs the device
* _STA and _INI methods.
*/