From a695a736b4b8a9549e3384b4ec66b148f547d16c Mon Sep 17 00:00:00 2001 From: Aaron Durbin Date: Wed, 18 Apr 2018 23:07:44 -0600 Subject: soc/intel/apollake: add support for tracking memory details It's going to be necessary to know the i/o hole size as well the amount of memory configured in the sytsem. Therefore, add two helper functions: memory_in_system_in_mib() iohole_in_mib() Both return values in units of MiB. BUG=b:72728953 Change-Id: I481ba517c37f769e76d9e12b3631f5f99b5427a9 Signed-off-by: Aaron Durbin Reviewed-on: https://review.coreboot.org/25738 Reviewed-by: Lijian Zhao Reviewed-by: Hannah Williams Reviewed-by: Furquan Shaikh Tested-by: build bot (Jenkins) --- src/soc/intel/apollolake/include/soc/meminit.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'src/soc/intel/apollolake/include') diff --git a/src/soc/intel/apollolake/include/soc/meminit.h b/src/soc/intel/apollolake/include/soc/meminit.h index 6b892fcdff..3b0b507ddd 100644 --- a/src/soc/intel/apollolake/include/soc/meminit.h +++ b/src/soc/intel/apollolake/include/soc/meminit.h @@ -132,4 +132,10 @@ void meminit_lpddr4_by_sku(FSP_M_CONFIG *cfg, const struct lpddr4_cfg *lpcfg, size_t sku_id); void save_lpddr4_dimm_info(const struct lpddr4_cfg *lpcfg, size_t mem_sku); +/* Retrieve the amount of memory configured in the system in MiB. It's only + * valid during romstage. */ +size_t memory_in_system_in_mib(void); +/* Retrieve the requested i/o hole in MiB. Only valid in romstage. */ +size_t iohole_in_mib(void); + #endif /* _SOC_APOLLOLAKE_MEMINIT_H_ */ -- cgit v1.2.3