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ACPI / sleep: Introduce acpi_os_prepare_extended_sleep() for extended sleep path

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Like acpi_os_prepare_sleep(), register a callback for use in systems
like tboot, and xen, which have system specific requirements outside
of ACPICA.  This mirrors the functionality in acpi_os_prepare_sleep(),
called from acpi_hw_sleep()

Signed-off-by: Ben Guthro <benjamin.guthro@citrix.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Ben Guthro 2013-07-30 08:24:52 -04:00 • committed by Rafael J. Wysocki
parent 5ae90d8e46
commit d6b47b1224
3 changed files with 40 additions and 0 deletions
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7
include/linux/acpi.h
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@ -481,6 +481,13 @@ void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
acpi_status acpi_os_prepare_sleep(u8 sleep_state,
u32 pm1a_control, u32 pm1b_control);
void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
u32 val_a, u32 val_b));
acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
u32 val_a, u32 val_b);
#ifdef CONFIG_X86
void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
#else