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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2016-06-28 07:38:46 +0300 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2016-11-09 20:52:07 +0100 |
| commit | 9d6f365643d78c223b7ebf9e214381ec707b482a (patch) | |
| tree | 96a77b4bb24e865f854bec44cb3e4f2d2061e43d /src/cpu/amd/car | |
| parent | 2c7ad8c8d3f7e508ee64f1af4fe81a60b8c84da1 (diff) | |
ACPI S3: Remove HIGH_MEMORY_SAVE where possible
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 <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/15255
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Diffstat (limited to 'src/cpu/amd/car')
| -rw-r--r-- | src/cpu/amd/car/post_cache_as_ram.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/cpu/amd/car/post_cache_as_ram.c b/src/cpu/amd/car/post_cache_as_ram.c index 19aa0a2fe6..296adc9869 100644 --- a/src/cpu/amd/car/post_cache_as_ram.c +++ b/src/cpu/amd/car/post_cache_as_ram.c @@ -69,7 +69,7 @@ static void prepare_romstage_ramstack(int s3resume) print_car_debug("Prepare CAR migration and stack regions..."); if (s3resume) { - void *resume_backup_memory = cbmem_find(CBMEM_ID_RESUME); + void *resume_backup_memory = acpi_backup_container(CONFIG_RAMBASE, HIGH_MEMORY_SAVE); if (resume_backup_memory) memcpy_(resume_backup_memory + HIGH_MEMORY_SAVE - backup_top, (void *)(CONFIG_RAMTOP - backup_top), backup_top); @@ -85,7 +85,7 @@ static void prepare_ramstage_region(int s3resume) print_car_debug("Prepare ramstage memory region..."); if (s3resume) { - void *resume_backup_memory = cbmem_find(CBMEM_ID_RESUME); + void *resume_backup_memory = acpi_backup_container(CONFIG_RAMBASE, HIGH_MEMORY_SAVE); if (resume_backup_memory) memcpy_(resume_backup_memory, (void *) CONFIG_RAMBASE, HIGH_MEMORY_SAVE - backup_top); |