Introduce module parameter acpi.aml_debug. With acpi.aml_debug set, we can get AML debug object output (Store (AAA, Debug)), even with CONFIG_ACPI_DEBUG cleared. Together with the runtime custom method, we can debug AML code problems without rebuilding the kernel. Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx> --- drivers/acpi/acpica/acglobal.h | 2 +- drivers/acpi/sysfs.c | 4 ++++ include/acpi/acpixf.h | 2 +- 3 files changed, 6 insertions(+), 2 deletions(-) Index: linux-2.6/drivers/acpi/sysfs.c =================================================================== --- linux-2.6.orig/drivers/acpi/sysfs.c +++ linux-2.6/drivers/acpi/sysfs.c @@ -219,6 +219,10 @@ static int param_get_acpica_version(char module_param_call(acpica_version, NULL, param_get_acpica_version, NULL, 0444); +/* /sys/module/acpi/parameters/aml_debug */ + +module_param_named(aml_debug, acpi_gbl_enable_aml_debug_object, uint, 0644); + /* /sys/firmware/acpi/tables/ */ static LIST_HEAD(acpi_table_attr_list); static struct kobject *tables_kobj; Index: linux-2.6/drivers/acpi/acpica/acglobal.h =================================================================== --- linux-2.6.orig/drivers/acpi/acpica/acglobal.h +++ linux-2.6/drivers/acpi/acpica/acglobal.h @@ -115,7 +115,7 @@ u8 ACPI_INIT_GLOBAL(acpi_gbl_use_default /* * Optionally enable output from the AML Debug Object. */ -u8 ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE); +u32 ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE); /* * Optionally copy the entire DSDT to local memory (instead of simply Index: linux-2.6/include/acpi/acpixf.h =================================================================== --- linux-2.6.orig/include/acpi/acpixf.h +++ linux-2.6/include/acpi/acpixf.h @@ -67,7 +67,7 @@ extern u8 acpi_gbl_leave_wake_gpes_disab extern u8 acpi_gbl_use_default_register_widths; extern acpi_name acpi_gbl_trace_method_name; extern u32 acpi_gbl_trace_flags; -extern u8 acpi_gbl_enable_aml_debug_object; +extern u32 acpi_gbl_enable_aml_debug_object; extern u8 acpi_gbl_copy_dsdt_locally; extern u32 acpi_current_gpe_count; -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
