ACPI / bus: Adjust ACPI subsystem initialization for new table loading mode

This patch enables the following initialization order for the
new table loading mode (which is enabled by setting
acpi_gbl_parse_table_as_term_list to TRUE):

  1. Install default region handlers (SystemMemory, SystemIo, PciConfig,
     EmbeddedControl via ECDT) without evaluating _REG;

  2. Load the table and execute the module level AML opcodes instantly.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
[ rjw: Subject ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 85b7d07..658b4c4 100644 (file)
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -985,7 +985,8 @@ void __init acpi_early_init(void)
                goto error0;
        }
 
-       if (acpi_gbl_group_module_level_code) {
+       if (!acpi_gbl_parse_table_as_term_list &&
+           acpi_gbl_group_module_level_code) {
                status = acpi_load_tables();
                if (ACPI_FAILURE(status)) {
                        printk(KERN_ERR PREFIX
@@ -1074,7 +1075,8 @@ static int __init acpi_bus_init(void)
        status = acpi_ec_ecdt_probe();
        /* Ignore result. Not having an ECDT is not fatal. */
 
-       if (!acpi_gbl_group_module_level_code) {
+       if (acpi_gbl_parse_table_as_term_list ||
+           !acpi_gbl_group_module_level_code) {
                status = acpi_load_tables();
                if (ACPI_FAILURE(status)) {
                        printk(KERN_ERR PREFIX