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authorSubrata Banik <subratabanik@google.com>2023-06-12 18:07:33 +0530
committerSubrata Banik <subratabanik@google.com>2023-08-31 08:16:51 +0000
commit6aca25c887ba9e7cce92e18ab77fc49c352ad12a (patch)
tree24aa1fe74673963ab7022fab81c04f3a4f7ee79a /src/mainboard/google/kahlee/Makefile.inc
parent1b25422215279191da7f71840da7214fbcb22b9c (diff)
mb/google/rex: Enable Fast V-Mode for MTL-U 15W
This patch sets the Fast V-Mode (FVM) configuration parameter as suggested in Intel doc 640982. As per the doc, Intel MTL-U 15W CPU supports FVM on IA and SA. Fast V-Mode (FVM): Intel Meteor Lake introduces the ability to manage the peak power events it calls "reactive peak power management". The Fast V-Mode is one such technique to perform the reactive peak power management. It relies on the detector integrated inside the processor which senses when the processor load current exceeds a present threshold by monitoring the processor power domain IMVP (Intel Mobile Voltage Positioning) VR sense point. The baseline ITRIP for IA is 66A and 21A for SA. BUG=b:286809233 TEST=Able to build and boot google/rex without seeing any performance regression. Change-Id: Ia7157bddf2e9586e4a91cc55e48693561072cd05 Signed-off-by: Subrata Banik <subratabanik@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/75763 Reviewed-by: Kapil Porwal <kapilporwal@google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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