ACPI: Allocate S3 resume backup in CBMEM earlier

These allocations are not really part of write_tables() and the move
opens possibilities to use CBMEM instead of SPI Flash to restore some
parts of system state after S3 resume.

Change-Id: I0c36bcee3f1da525af077fc1d18677ee85097e4d
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/7097
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/arch/x86/include/arch/acpi.h b/src/arch/x86/include/arch/acpi.h
index f00d5f436a..ff59a012aa 100644
--- a/src/arch/x86/include/arch/acpi.h
+++ b/src/arch/x86/include/arch/acpi.h
@@ -569,6 +569,7 @@ int acpi_is_wakeup_early(void);
 
 void acpi_fail_wakeup(void);
 void acpi_resume(void *wake_vec);
+void acpi_prepare_resume_backup(void);
 void __attribute__((weak)) mainboard_suspend_resume(void);
 void *acpi_find_wakeup_vector(void);
 void *acpi_get_wakeup_rsdp(void);