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2022-08-17soc/amd/cezanne,picasso,sabrina/smihandler: add comment about SMN accessFelix Held
The SMI sleep entry handler will access the SMN space via the index/data register at PCI config space offsets 0xb8 and 0xbc of the device at bus 0, device 0, function 0. This register pair is also used by other software components running on the x86 cores after boot, so it should be saved and restored at the beginning/end of the SMI handler if it accesses SMN. The sleep entry SMI handler is a special case, since the OS is already done at the moment we enter the sleep SMI handler which is the last code that gets run on the x86 cores before entering S3/4/5. BUG=b:237004699 Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: I0980562ef8a61489082a81c71d6d00d0786d68cb Reviewed-on: https://review.coreboot.org/c/coreboot/+/65529 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Raul Rangel <rrangel@chromium.org>
2022-08-11treewide: Rename Sabrina to MendocinoJon Murphy
'Mendocino' was an embargoed name and could previously not be used in references to Skyrim. coreboot has references to sabrina both in directory structure and in files. This will make life difficult for people looking for Mendocino support in the long term. The code name should be replaced with "mendocino". BUG=b:239072117 TEST=Builds Cq-Depend: chromium:3764023 Cq-Depend: chromium:3763392 Cq-Depend: chrome-internal:4876777 Signed-off-by: Jon Murphy <jpmurphy@google.com> Change-Id: I2d0f76fde07a209a79f7e1596cc8064e53f06ada Reviewed-on: https://review.coreboot.org/c/coreboot/+/65861 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martin.roth@amd.corp-partner.google.com>