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ACPI: Move module parameter gts and bfs to sleep.c 

Move linux specific module parameter gts and bfs out of ACPICA core
code to sleep.c.

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Lin Ming 2012-03-21 10:58:46 +08:00 committed by Len Brown
parent 8a73b17e4c
commit a2ef5c4fd4
2 changed files with 31 additions and 20 deletions
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13
drivers/acpi/acpica/hwesleep.c
View File

@ -44,17 +44,10 @@
#include <acpi/acpi.h>
#include "accommon.h"
#include <linux/module.h>
#define _COMPONENT ACPI_HARDWARE
ACPI_MODULE_NAME("hwesleep")
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_hw_execute_sleep_method
@ -76,12 +69,6 @@ void acpi_hw_execute_sleep_method(char *method_pathname, u32 integer_argument)
ACPI_FUNCTION_TRACE(hw_execute_sleep_method);
if (!ACPI_STRCMP(METHOD_PATHNAME__GTS, method_pathname) && !gts)
return_VOID;
if (!ACPI_STRCMP(METHOD_PATHNAME__BFS, method_pathname) && !bfs)
return_VOID;
/* One argument, integer_argument; No return value expected */
arg_list.count = 1;

38
drivers/acpi/sleep.c
View File

@ -17,6 +17,7 @@
#include <linux/suspend.h>
#include <linux/reboot.h>
#include <linux/acpi.h>
#include <linux/module.h>
#include <asm/io.h>
@ -26,6 +27,24 @@
#include "internal.h"
#include "sleep.h"
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".);
static u8 wake_sleep_flags(void)
{
u8 flags = ACPI_NO_OPTIONAL_METHODS;
if (gts)
flags |= ACPI_EXECUTE_GTS;
if (bfs)
flags |= ACPI_EXECUTE_BFS;
return flags;
}
static u8 sleep_states[ACPI_S_STATE_COUNT];
static void acpi_sleep_tts_switch(u32 acpi_state)
@ -243,6 +262,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
{
acpi_status status = AE_OK;
u32 acpi_state = acpi_target_sleep_state;
u8 flags = wake_sleep_flags();
int error;
ACPI_FLUSH_CPU_CACHE();
@ -250,8 +270,7 @@ 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,
ACPI_NO_OPTIONAL_METHODS);
status = acpi_enter_sleep_state(acpi_state, flags);
break;
case ACPI_STATE_S3:
@ -266,7 +285,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
acpi_write_bit_register(ACPI_BITREG_SCI_ENABLE, 1);
/* Reprogram control registers and execute _BFS */
acpi_leave_sleep_state_prep(acpi_state, ACPI_NO_OPTIONAL_METHODS);
acpi_leave_sleep_state_prep(acpi_state, flags);
/* ACPI 3.0 specs (P62) says that it's the responsibility
* of the OSPM to clear the status bit [ implying that the
@ -530,27 +549,30 @@ static int acpi_hibernation_begin(void)
static int acpi_hibernation_enter(void)
{
u8 flags = wake_sleep_flags();
acpi_status status = AE_OK;
ACPI_FLUSH_CPU_CACHE();
/* This shouldn't return. If it returns, we have a problem */
status = acpi_enter_sleep_state(ACPI_STATE_S4, ACPI_NO_OPTIONAL_METHODS);
status = acpi_enter_sleep_state(ACPI_STATE_S4, flags);
/* Reprogram control registers and execute _BFS */
acpi_leave_sleep_state_prep(ACPI_STATE_S4, ACPI_NO_OPTIONAL_METHODS);
acpi_leave_sleep_state_prep(ACPI_STATE_S4, flags);
return ACPI_SUCCESS(status) ? 0 : -EFAULT;
}
static void acpi_hibernation_leave(void)
{
u8 flags = wake_sleep_flags();
/*
* If ACPI is not enabled by the BIOS and the boot kernel, we need to
* enable it here.
*/
acpi_enable();
/* Reprogram control registers and execute _BFS */
acpi_leave_sleep_state_prep(ACPI_STATE_S4, ACPI_NO_OPTIONAL_METHODS);
acpi_leave_sleep_state_prep(ACPI_STATE_S4, flags);
/* Check the hardware signature */
if (facs && s4_hardware_signature != facs->hardware_signature) {
printk(KERN_EMERG "ACPI: Hardware changed while hibernated, "
@ -771,10 +793,12 @@ static void acpi_power_off_prepare(void)
static void acpi_power_off(void)
{
u8 flags = wake_sleep_flags();
/* 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, ACPI_NO_OPTIONAL_METHODS);
acpi_enter_sleep_state(ACPI_STATE_S5, flags);
}
/*