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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-06-28 12:58:30 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-06-28 12:58:30 +0200
commit3b4550e0e0cd24d8073dc571cecb0d4aa4ca3542 (patch)
tree44af05a1ac1c85621fa1d06d50d6b127a4cc83bb /arch/x86
parent8e9914d5efe460600f5948da7ae4c1b6c038a4c0 (diff)
parentfa1675b56537651270e79967b7f1ee4202c83bf6 (diff)
downloadlinux-3b4550e0e0cd24d8073dc571cecb0d4aa4ca3542.tar.bz2
Merge branch 'acpi-pm'
* acpi-pm: ACPI / PM: Rework and clean up acpi_dev_pm_get_state() ACPI / PM: Replace ACPI_STATE_D3 with ACPI_STATE_D3_COLD in device_pm.c ACPI / PM: Rename function acpi_device_power_state() and make it static ACPI / PM: acpi_processor_suspend() can be static xen / ACPI / sleep: Register an acpi_suspend_lowlevel callback. x86 / ACPI / sleep: Provide registration for acpi_suspend_lowlevel.
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/include/asm/acpi.h2
-rw-r--r--arch/x86/kernel/acpi/boot.c7
-rw-r--r--arch/x86/kernel/acpi/sleep.c4
-rw-r--r--arch/x86/kernel/acpi/sleep.h2
4 files changed, 12 insertions, 3 deletions
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index b31bf97775fc..2dfac58f3b11 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -111,7 +111,7 @@ static inline void acpi_disable_pci(void)
}
/* Low-level suspend routine. */
-extern int acpi_suspend_lowlevel(void);
+extern int (*acpi_suspend_lowlevel)(void);
/* Physical address to resume after wakeup */
#define acpi_wakeup_address ((unsigned long)(real_mode_header->wakeup_start))
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 230c8ea878e5..d81a972dd506 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -44,6 +44,7 @@
#include <asm/mpspec.h>
#include <asm/smp.h>
+#include "sleep.h" /* To include x86_acpi_suspend_lowlevel */
static int __initdata acpi_force = 0;
u32 acpi_rsdt_forced;
int acpi_disabled;
@@ -559,6 +560,12 @@ static int acpi_register_gsi_ioapic(struct device *dev, u32 gsi,
int (*__acpi_register_gsi)(struct device *dev, u32 gsi,
int trigger, int polarity) = acpi_register_gsi_pic;
+#ifdef CONFIG_ACPI_SLEEP
+int (*acpi_suspend_lowlevel)(void) = x86_acpi_suspend_lowlevel;
+#else
+int (*acpi_suspend_lowlevel)(void);
+#endif
+
/*
* success: return IRQ number (>=0)
* failure: return < 0
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index b44577bc9744..2a34aaf3c8f1 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -26,12 +26,12 @@ static char temp_stack[4096];
#endif
/**
- * acpi_suspend_lowlevel - save kernel state
+ * x86_acpi_suspend_lowlevel - save kernel state
*
* Create an identity mapped page table and copy the wakeup routine to
* low memory.
*/
-int acpi_suspend_lowlevel(void)
+int x86_acpi_suspend_lowlevel(void)
{
struct wakeup_header *header =
(struct wakeup_header *) __va(real_mode_header->wakeup_header);
diff --git a/arch/x86/kernel/acpi/sleep.h b/arch/x86/kernel/acpi/sleep.h
index 67f59f8c6956..c9c2c982d5e4 100644
--- a/arch/x86/kernel/acpi/sleep.h
+++ b/arch/x86/kernel/acpi/sleep.h
@@ -15,3 +15,5 @@ extern unsigned long acpi_copy_wakeup_routine(unsigned long);
extern void wakeup_long64(void);
extern void do_suspend_lowlevel(void);
+
+extern int x86_acpi_suspend_lowlevel(void);