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authorLv Zheng <lv.zheng@intel.com>2013-06-08 00:58:48 +0000
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-06-16 00:55:40 +0200
commitb75dd2977fc3c5848f739681fc799f27b1322e44 (patch)
treefbe91dd6fad27e0d6c311e873340e05e51eda48e /drivers/acpi/osl.c
parent1d1ea1b723d9f239f736b8cf284327cbbf9d15d1 (diff)
ACPICA: Add option to disable loading of SSDTs from the RSDT/XSDT
Optionally do not load any SSDTs from the RSDT/XSDT during initialization. This can be useful for overriding SSDTs using DSDT overriding, thus useful for debugging ACPI problems on some machines. Lv Zheng. ACPICA BZ 1005. References: https://bugs.acpica.org/show_bug.cgi?id=1005 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/osl.c')
-rw-r--r--drivers/acpi/osl.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index e72186340fec..da6b6634e5b3 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1715,6 +1715,17 @@ acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object)
}
#endif
+static int __init acpi_no_auto_ssdt_setup(char *s)
+{
+ printk(KERN_NOTICE PREFIX "SSDT auto-load disabled\n");
+
+ acpi_gbl_disable_ssdt_table_load = TRUE;
+
+ return 1;
+}
+
+__setup("acpi_no_auto_ssdt", acpi_no_auto_ssdt_setup);
+
acpi_status __init acpi_os_initialize(void)
{
acpi_os_map_generic_address(&acpi_gbl_FADT.xpm1a_event_block);