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authorSubrata Banik <subrata.banik@intel.com>2017-10-12 17:59:02 +0530
committerAaron Durbin <adurbin@chromium.org>2017-10-18 01:13:51 +0000
commit47569cf3a9be5d42a75c932d4148fa20c2d8b475 (patch)
treeb5c04ad951389a26e1eab016f5856eeb94e3ca2b /src/soc/amd
parentd2cadc39f3894612ca7714d5a4712bd3c09f42de (diff)
soc/intel/cannonlake: Use EBDA area to store cbmem_top address
This patch uses BIOS EBDA area to store relevent details like cbmem top during romstage after MRC init is done. Also provide provision to use the same EBDA data across various stages without reexecuting memory map algorithm. BRANCH=none BUG=b:63974384 TEST=Ensures HW based memmap algorithm is executing once in romstage and store required data into EBDA for other stage to avoid redundant calculation and get cbmem_top start from EBDA area. Change-Id: I763ad8181396ea8d8c0d5cf088264791ba62dceb Signed-off-by: Subrata Banik <subrata.banik@intel.com> Reviewed-on: https://review.coreboot.org/21985 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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