ACPICA: ACPICA: Tune _REG evaluations order in the initialization steps (9559130b) · Commits · 戴 / test

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>

drivers/acpi/acpica/utxfinit.c

+18 −17

Original line number	Diff line number	Diff line
		@@ -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.
		@@ -318,6 +301,24 @@ 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.

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