From 9d6f365643d78c223b7ebf9e214381ec707b482a Mon Sep 17 00:00:00 2001 From: Kyösti Mälkki Date: Tue, 28 Jun 2016 07:38:46 +0300 Subject: ACPI S3: Remove HIGH_MEMORY_SAVE where possible MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add implementation to use actual requirements of ramstage size for S3 resume backup in CBMEM. The backup covers complete pages of 4 KiB. Only the required amount of low memory is backed up when ACPI_TINY_LOWMEM_BACKUP is selected for the platform. Enable this option for AGESA and binaryPI, other platforms (without RELOCATABLE_RAMSTAGE) currently keep their romstage ramstack in low memory for s3 resume path. Change-Id: Ide7ce013f3727c2928cdb00fbcc7e7e84e859ff1 Signed-off-by: Kyösti Mälkki Reviewed-on: https://review.coreboot.org/15255 Reviewed-by: Aaron Durbin Tested-by: build bot (Jenkins) Tested-by: Raptor Engineering Automated Test Stand --- src/Kconfig | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'src/Kconfig') diff --git a/src/Kconfig b/src/Kconfig index d6af6ebacd..d6ada63548 100644 --- a/src/Kconfig +++ b/src/Kconfig @@ -539,6 +539,19 @@ config HAVE_ACPI_RESUME bool default n +config ACPI_TINY_LOWMEM_BACKUP + bool + default n + help + On S3 resume path, backup only the region of low memory ramstage + will occupy. Requires platform places romstage ramstack in CBMEM. + +config ACPI_HUGE_LOWMEM_BACKUP + bool + default !ACPI_TINY_LOWMEM_BACKUP + help + On S3 resume path, backup low memory from RAMBASE..RAMTOP in CBMEM. + config RESUME_PATH_SAME_AS_BOOT bool default y if ARCH_X86 -- cgit v1.2.3