---

yaml --- r: 321379 b: refs/heads/master c: 3f6f49c h: refs/heads/master i: 321377: 675fca1 321375: 745c6a7 v: v3
git-mirror · Jul 31, 2012 · 0f9702d · 0f9702d
1 parent c018090
commit 0f9702d
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Showing 8 changed files with 35 additions and 119 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 3b6961ba8c682cc71e51079017743c1b282fd259
+refs/heads/master: 3f6f49c7854c9294119437a82c5b35be78f9cea6
diff --git a/trunk/drivers/acpi/acpica/achware.h b/trunk/drivers/acpi/acpica/achware.h
@@ -83,22 +83,22 @@ acpi_status acpi_hw_clear_acpi_status(void);
 /*
  * hwsleep - sleep/wake support (Legacy sleep registers)
  */
-acpi_status acpi_hw_legacy_sleep(u8 sleep_state, u8 flags);
+acpi_status acpi_hw_legacy_sleep(u8 sleep_state);
 
-acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state, u8 flags);
+acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state);
 
-acpi_status acpi_hw_legacy_wake(u8 sleep_state, u8 flags);
+acpi_status acpi_hw_legacy_wake(u8 sleep_state);
 
 /*
  * hwesleep - sleep/wake support (Extended FADT-V5 sleep registers)
  */
 void acpi_hw_execute_sleep_method(char *method_name, u32 integer_argument);
 
-acpi_status acpi_hw_extended_sleep(u8 sleep_state, u8 flags);
+acpi_status acpi_hw_extended_sleep(u8 sleep_state);
 
-acpi_status acpi_hw_extended_wake_prep(u8 sleep_state, u8 flags);
+acpi_status acpi_hw_extended_wake_prep(u8 sleep_state);
 
-acpi_status acpi_hw_extended_wake(u8 sleep_state, u8 flags);
+acpi_status acpi_hw_extended_wake(u8 sleep_state);
 
 /*
  * hwvalid - Port I/O with validation

diff --git a/trunk/drivers/acpi/acpica/hwesleep.c b/trunk/drivers/acpi/acpica/hwesleep.c
@@ -90,7 +90,6 @@ void acpi_hw_execute_sleep_method(char *method_pathname, u32 integer_argument)
  * FUNCTION:    acpi_hw_extended_sleep
  *
  * PARAMETERS:  sleep_state         - Which sleep state to enter
- *              flags               - ACPI_EXECUTE_GTS to run optional method
  *
  * RETURN:      Status
  *
@@ -100,7 +99,7 @@ void acpi_hw_execute_sleep_method(char *method_pathname, u32 integer_argument)
  *
  ******************************************************************************/
 
-acpi_status acpi_hw_extended_sleep(u8 sleep_state, u8 flags)
+acpi_status acpi_hw_extended_sleep(u8 sleep_state)
 {
 	acpi_status status;
 	u8 sleep_type_value;
@@ -125,12 +124,6 @@ acpi_status acpi_hw_extended_sleep(u8 sleep_state, u8 flags)
 
 	acpi_gbl_system_awake_and_running = FALSE;
 
-	/* Optionally execute _GTS (Going To Sleep) */
-
-	if (flags & ACPI_EXECUTE_GTS) {
-		acpi_hw_execute_sleep_method(METHOD_PATHNAME__GTS, sleep_state);
-	}
-
 	/* Flush caches, as per ACPI specification */
 
 	ACPI_FLUSH_CPU_CACHE();
@@ -172,7 +165,6 @@ acpi_status acpi_hw_extended_sleep(u8 sleep_state, u8 flags)
  * FUNCTION:    acpi_hw_extended_wake_prep
  *
  * PARAMETERS:  sleep_state         - Which sleep state we just exited
- *              flags               - ACPI_EXECUTE_BFS to run optional method
  *
  * RETURN:      Status
  *
@@ -181,7 +173,7 @@ acpi_status acpi_hw_extended_sleep(u8 sleep_state, u8 flags)
  *
  ******************************************************************************/
 
-acpi_status acpi_hw_extended_wake_prep(u8 sleep_state, u8 flags)
+acpi_status acpi_hw_extended_wake_prep(u8 sleep_state)
 {
 	acpi_status status;
 	u8 sleep_type_value;
@@ -200,11 +192,6 @@ acpi_status acpi_hw_extended_wake_prep(u8 sleep_state, u8 flags)
 				 &acpi_gbl_FADT.sleep_control);
 	}
 
-	/* Optionally execute _BFS (Back From Sleep) */
-
-	if (flags & ACPI_EXECUTE_BFS) {
-		acpi_hw_execute_sleep_method(METHOD_PATHNAME__BFS, sleep_state);
-	}
 	return_ACPI_STATUS(AE_OK);
 }
 
@@ -222,7 +209,7 @@ acpi_status acpi_hw_extended_wake_prep(u8 sleep_state, u8 flags)
  *
  ******************************************************************************/
 
-acpi_status acpi_hw_extended_wake(u8 sleep_state, u8 flags)
+acpi_status acpi_hw_extended_wake(u8 sleep_state)
 {
 	ACPI_FUNCTION_TRACE(hw_extended_wake);
 

diff --git a/trunk/drivers/acpi/acpica/hwsleep.c b/trunk/drivers/acpi/acpica/hwsleep.c
@@ -56,15 +56,14 @@ ACPI_MODULE_NAME("hwsleep")
  * FUNCTION:    acpi_hw_legacy_sleep
  *
  * PARAMETERS:  sleep_state         - Which sleep state to enter
- *              flags               - ACPI_EXECUTE_GTS to run optional method
  *
  * RETURN:      Status
  *
  * DESCRIPTION: Enter a system sleep state via the legacy FADT PM registers
  *              THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
  *
  ******************************************************************************/
-acpi_status acpi_hw_legacy_sleep(u8 sleep_state, u8 flags)
+acpi_status acpi_hw_legacy_sleep(u8 sleep_state)
 {
 	struct acpi_bit_register_info *sleep_type_reg_info;
 	struct acpi_bit_register_info *sleep_enable_reg_info;
@@ -110,12 +109,6 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state, u8 flags)
 		return_ACPI_STATUS(status);
 	}
 
-	/* Optionally execute _GTS (Going To Sleep) */
-
-	if (flags & ACPI_EXECUTE_GTS) {
-		acpi_hw_execute_sleep_method(METHOD_PATHNAME__GTS, sleep_state);
-	}
-
 	/* Get current value of PM1A control */
 
 	status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL,
@@ -214,7 +207,6 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state, u8 flags)
  * FUNCTION:    acpi_hw_legacy_wake_prep
  *
  * PARAMETERS:  sleep_state         - Which sleep state we just exited
- *              flags               - ACPI_EXECUTE_BFS to run optional method
  *
  * RETURN:      Status
  *
@@ -224,7 +216,7 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state, u8 flags)
  *
  ******************************************************************************/
 
-acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state, u8 flags)
+acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state)
 {
 	acpi_status status;
 	struct acpi_bit_register_info *sleep_type_reg_info;
@@ -275,11 +267,6 @@ acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state, u8 flags)
 		}
 	}
 
-	/* Optionally execute _BFS (Back From Sleep) */
-
-	if (flags & ACPI_EXECUTE_BFS) {
-		acpi_hw_execute_sleep_method(METHOD_PATHNAME__BFS, sleep_state);
-	}
 	return_ACPI_STATUS(status);
 }
 
@@ -288,7 +275,6 @@ acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state, u8 flags)
  * FUNCTION:    acpi_hw_legacy_wake
  *
  * PARAMETERS:  sleep_state         - Which sleep state we just exited
- *              flags               - Reserved, set to zero
  *
  * RETURN:      Status
  *
@@ -297,7 +283,7 @@ acpi_status acpi_hw_legacy_wake_prep(u8 sleep_state, u8 flags)
  *
  ******************************************************************************/
 
-acpi_status acpi_hw_legacy_wake(u8 sleep_state, u8 flags)
+acpi_status acpi_hw_legacy_wake(u8 sleep_state)
 {
 	acpi_status status;
 

diff --git a/trunk/drivers/acpi/acpica/hwxfsleep.c b/trunk/drivers/acpi/acpica/hwxfsleep.c
@@ -50,7 +50,7 @@ ACPI_MODULE_NAME("hwxfsleep")
 
 /* Local prototypes */
 static acpi_status
-acpi_hw_sleep_dispatch(u8 sleep_state, u8 flags, u32 function_id);
+acpi_hw_sleep_dispatch(u8 sleep_state, u32 function_id);
 
 /*
  * Dispatch table used to efficiently branch to the various sleep
@@ -235,7 +235,7 @@ ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios)
  *
  ******************************************************************************/
 static acpi_status
-acpi_hw_sleep_dispatch(u8 sleep_state, u8 flags, u32 function_id)
+acpi_hw_sleep_dispatch(u8 sleep_state, u32 function_id)
 {
 	acpi_status status;
 	struct acpi_sleep_functions *sleep_functions =
@@ -248,11 +248,11 @@ acpi_hw_sleep_dispatch(u8 sleep_state, u8 flags, u32 function_id)
 	 * use the extended sleep registers
 	 */
 	if (acpi_gbl_reduced_hardware || acpi_gbl_FADT.sleep_control.address) {
-		status = sleep_functions->extended_function(sleep_state, flags);
+		status = sleep_functions->extended_function(sleep_state);
 	} else {
 		/* Legacy sleep */
 
-		status = sleep_functions->legacy_function(sleep_state, flags);
+		status = sleep_functions->legacy_function(sleep_state);
 	}
 
 	return (status);
@@ -262,7 +262,7 @@ acpi_hw_sleep_dispatch(u8 sleep_state, u8 flags, u32 function_id)
 	 * For the case where reduced-hardware-only code is being generated,
 	 * we know that only the extended sleep registers are available
 	 */
-	status = sleep_functions->extended_function(sleep_state, flags);
+	status = sleep_functions->extended_function(sleep_state);
 	return (status);
 
 #endif				/* !ACPI_REDUCED_HARDWARE */
@@ -349,15 +349,14 @@ ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep)
  * FUNCTION:    acpi_enter_sleep_state
  *
  * PARAMETERS:  sleep_state         - Which sleep state to enter
- *              flags               - ACPI_EXECUTE_GTS to run optional method
  *
  * RETURN:      Status
  *
  * DESCRIPTION: Enter a system sleep state (see ACPI 2.0 spec p 231)
  *              THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
  *
  ******************************************************************************/
-acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state, u8 flags)
+acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
 {
 	acpi_status status;
 
@@ -371,7 +370,7 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state, u8 flags)
 	}
 
 	status =
-	    acpi_hw_sleep_dispatch(sleep_state, flags, ACPI_SLEEP_FUNCTION_ID);
+	    acpi_hw_sleep_dispatch(sleep_state, ACPI_SLEEP_FUNCTION_ID);
 	return_ACPI_STATUS(status);
 }
 
@@ -391,14 +390,14 @@ ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state)
  *              Called with interrupts DISABLED.
  *
  ******************************************************************************/
-acpi_status acpi_leave_sleep_state_prep(u8 sleep_state, u8 flags)
+acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
 {
 	acpi_status status;
 
 	ACPI_FUNCTION_TRACE(acpi_leave_sleep_state_prep);
 
 	status =
-	    acpi_hw_sleep_dispatch(sleep_state, flags,
+	    acpi_hw_sleep_dispatch(sleep_state,
 				   ACPI_WAKE_PREP_FUNCTION_ID);
 	return_ACPI_STATUS(status);
 }
@@ -423,8 +422,7 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
 
 	ACPI_FUNCTION_TRACE(acpi_leave_sleep_state);
 
-
-	status = acpi_hw_sleep_dispatch(sleep_state, 0, ACPI_WAKE_FUNCTION_ID);
+	status = acpi_hw_sleep_dispatch(sleep_state, ACPI_WAKE_FUNCTION_ID);
 	return_ACPI_STATUS(status);
 }
 

diff --git a/trunk/drivers/acpi/sleep.c b/trunk/drivers/acpi/sleep.c
@@ -28,34 +28,6 @@
 #include "internal.h"
 #include "sleep.h"
 
-u8 wake_sleep_flags = ACPI_NO_OPTIONAL_METHODS;
-static unsigned int gts, bfs;
-static int set_param_wake_flag(const char *val, struct kernel_param *kp)
-{
-	int ret = param_set_int(val, kp);
-
-	if (ret)
-		return ret;
-
-	if (kp->arg == (const char *)&gts) {
-		if (gts)
-			wake_sleep_flags |= ACPI_EXECUTE_GTS;
-		else
-			wake_sleep_flags &= ~ACPI_EXECUTE_GTS;
-	}
-	if (kp->arg == (const char *)&bfs) {
-		if (bfs)
-			wake_sleep_flags |= ACPI_EXECUTE_BFS;
-		else
-			wake_sleep_flags &= ~ACPI_EXECUTE_BFS;
-	}
-	return ret;
-}
-module_param_call(gts, set_param_wake_flag, param_get_int, &gts, 0644);
-module_param_call(bfs, set_param_wake_flag, param_get_int, &bfs, 0644);
-MODULE_PARM_DESC(gts, "Enable evaluation of _GTS on suspend.");
-MODULE_PARM_DESC(bfs, "Enable evaluation of _BFS on resume".);
-
 static u8 sleep_states[ACPI_S_STATE_COUNT];
 static bool pwr_btn_event_pending;
 
@@ -305,7 +277,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
 	switch (acpi_state) {
 	case ACPI_STATE_S1:
 		barrier();
-		status = acpi_enter_sleep_state(acpi_state, wake_sleep_flags);
+		status = acpi_enter_sleep_state(acpi_state);
 		break;
 
 	case ACPI_STATE_S3:
@@ -319,8 +291,8 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
 	/* This violates the spec but is required for bug compatibility. */
 	acpi_write_bit_register(ACPI_BITREG_SCI_ENABLE, 1);
 
-	/* Reprogram control registers and execute _BFS */
-	acpi_leave_sleep_state_prep(acpi_state, wake_sleep_flags);
+	/* Reprogram control registers */
+	acpi_leave_sleep_state_prep(acpi_state);
 
 	/* ACPI 3.0 specs (P62) says that it's the responsibility
 	 * of the OSPM to clear the status bit [ implying that the
@@ -603,9 +575,9 @@ static int acpi_hibernation_enter(void)
 	ACPI_FLUSH_CPU_CACHE();
 
 	/* This shouldn't return.  If it returns, we have a problem */
-	status = acpi_enter_sleep_state(ACPI_STATE_S4, wake_sleep_flags);
-	/* Reprogram control registers and execute _BFS */
-	acpi_leave_sleep_state_prep(ACPI_STATE_S4, wake_sleep_flags);
+	status = acpi_enter_sleep_state(ACPI_STATE_S4);
+	/* Reprogram control registers */
+	acpi_leave_sleep_state_prep(ACPI_STATE_S4);
 
 	return ACPI_SUCCESS(status) ? 0 : -EFAULT;
 }
@@ -617,8 +589,8 @@ static void acpi_hibernation_leave(void)
 	 * enable it here.
 	 */
 	acpi_enable();
-	/* Reprogram control registers and execute _BFS */
-	acpi_leave_sleep_state_prep(ACPI_STATE_S4, wake_sleep_flags);
+	/* Reprogram control registers */
+	acpi_leave_sleep_state_prep(ACPI_STATE_S4);
 	/* Check the hardware signature */
 	if (facs && s4_hardware_signature != facs->hardware_signature) {
 		printk(KERN_EMERG "ACPI: Hardware changed while hibernated, "
@@ -876,33 +848,7 @@ static void acpi_power_off(void)
 	/* acpi_sleep_prepare(ACPI_STATE_S5) should have already been called */
 	printk(KERN_DEBUG "%s called\n", __func__);
 	local_irq_disable();
-	acpi_enter_sleep_state(ACPI_STATE_S5, wake_sleep_flags);
-}
-
-/*
- * ACPI 2.0 created the optional _GTS and _BFS,
- * but industry adoption has been neither rapid nor broad.
- *
- * Linux gets into trouble when it executes poorly validated
- * paths through the BIOS, so disable _GTS and _BFS by default,
- * but do speak up and offer the option to enable them.
- */
-static void __init acpi_gts_bfs_check(void)
-{
-	acpi_handle dummy;
-
-	if (ACPI_SUCCESS(acpi_get_handle(ACPI_ROOT_OBJECT, METHOD_PATHNAME__GTS, &dummy)))
-	{
-		printk(KERN_NOTICE PREFIX "BIOS offers _GTS\n");
-		printk(KERN_NOTICE PREFIX "If \"acpi.gts=1\" improves suspend, "
-			"please notify linux-acpi@vger.kernel.org\n");
-	}
-	if (ACPI_SUCCESS(acpi_get_handle(ACPI_ROOT_OBJECT, METHOD_PATHNAME__BFS, &dummy)))
-	{
-		printk(KERN_NOTICE PREFIX "BIOS offers _BFS\n");
-		printk(KERN_NOTICE PREFIX "If \"acpi.bfs=1\" improves resume, "
-			"please notify linux-acpi@vger.kernel.org\n");
-	}
+	acpi_enter_sleep_state(ACPI_STATE_S5);
 }
 
 int __init acpi_sleep_init(void)
@@ -963,6 +909,5 @@ int __init acpi_sleep_init(void)
 	 * object can also be evaluated when the system enters S5.
 	 */
 	register_reboot_notifier(&tts_notifier);
-	acpi_gts_bfs_check();
 	return 0;
 }