From 9d6f365643d78c223b7ebf9e214381ec707b482a Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ky=C3=B6sti=20M=C3=A4lkki?= 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/lib/cbfs.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'src/lib/cbfs.c') diff --git a/src/lib/cbfs.c b/src/lib/cbfs.c index 5a2f63f95d..19737a4192 100644 --- a/src/lib/cbfs.c +++ b/src/lib/cbfs.c @@ -187,6 +187,18 @@ size_t cbfs_boot_load_struct(const char *name, void *buf, size_t buf_size) buf, buf_size, compression_algo); } +size_t cbfs_prog_stage_section(struct prog *pstage, uintptr_t *base) +{ + struct cbfs_stage stage; + const struct region_device *fh = prog_rdev(pstage); + + if (rdev_readat(fh, &stage, 0, sizeof(stage)) != sizeof(stage)) + return 0; + + *base = (uintptr_t)stage.load; + return stage.memlen; +} + int cbfs_prog_stage_load(struct prog *pstage) { struct cbfs_stage stage; -- cgit v1.2.3