x86, intel_txt: clean up the impact on generic code, unbreak non-x86
[linux-2.6.git] / drivers / acpi / acpica / hwsleep.c
index baa5fc0..cc22f9a 100644 (file)
@@ -45,6 +45,7 @@
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "actables.h"
+#include <linux/tboot.h>
 
 #define _COMPONENT          ACPI_HARDWARE
 ACPI_MODULE_NAME("hwsleep")
@@ -211,6 +212,12 @@ acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
 
 ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep)
 
+static unsigned int gts, bfs;
+module_param(gts, uint, 0644);
+module_param(bfs, uint, 0644);
+MODULE_PARM_DESC(gts, "Enable evaluation of _GTS on suspend.");
+MODULE_PARM_DESC(bfs, "Enable evaluation of _BFS on resume".);
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_enter_sleep_state
@@ -278,16 +285,18 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
                return_ACPI_STATUS(status);
        }
 
-       /* Execute the _GTS method */
+       if (gts) {
+               /* Execute the _GTS method */
 
-       arg_list.count = 1;
-       arg_list.pointer = &arg;
-       arg.type = ACPI_TYPE_INTEGER;
-       arg.integer.value = sleep_state;
+               arg_list.count = 1;
+               arg_list.pointer = &arg;
+               arg.type = ACPI_TYPE_INTEGER;
+               arg.integer.value = sleep_state;
 
-       status = acpi_evaluate_object(NULL, METHOD_NAME__GTS, &arg_list, NULL);
-       if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
-               return_ACPI_STATUS(status);
+               status = acpi_evaluate_object(NULL, METHOD_NAME__GTS, &arg_list, NULL);
+               if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+                       return_ACPI_STATUS(status);
+               }
        }
 
        /* Get current value of PM1A control */
@@ -334,6 +343,8 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
 
        ACPI_FLUSH_CPU_CACHE();
 
+       tboot_sleep(sleep_state, pm1a_control, pm1b_control);
+
        /* Write #2: Write both SLP_TYP + SLP_EN */
 
        status = acpi_hw_write_pm1_control(pm1a_control, pm1b_control);
@@ -513,18 +524,19 @@ acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
                }
        }
 
-       /* Execute the _BFS method */
+       if (bfs) {
+               /* Execute the _BFS method */
 
-       arg_list.count = 1;
-       arg_list.pointer = &arg;
-       arg.type = ACPI_TYPE_INTEGER;
-       arg.integer.value = sleep_state;
+               arg_list.count = 1;
+               arg_list.pointer = &arg;
+               arg.type = ACPI_TYPE_INTEGER;
+               arg.integer.value = sleep_state;
 
-       status = acpi_evaluate_object(NULL, METHOD_NAME__BFS, &arg_list, NULL);
-       if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
-               ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS"));
+               status = acpi_evaluate_object(NULL, METHOD_NAME__BFS, &arg_list, NULL);
+               if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+                       ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS"));
+               }
        }
-
        return_ACPI_STATUS(status);
 }