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authorNico Huber <nico.h@gmx.de>2018-08-23 22:14:01 +0200
committerFelix Held <felix-coreboot@felixheld.de>2018-09-14 20:20:22 +0000
commitf26a7c76873b9a647d338370a2adf706f8b3f705 (patch)
tree9e5ca7dc82d83257267a39eac23eb186ffbb8556 /src/mainboard/asrock/g41c-gs
parent6b0102db76ce99796a96d2db77a3e712135e8fac (diff)
downloadcoreboot-f26a7c76873b9a647d338370a2adf706f8b3f705.tar.xz
drivers/intel/gma: Do not rely on CBLV in OpRegion Mailbox3
CBLV is not kept up to date by Linux' i915. We should fix that too, but it will likely take some years until we can always expect it to work. For now read the register values directly. To accomodate that we are not the only one writing those, revise XBQC() to search for the closest value in BRIG (instead of a lower equal one) and round more accurately for better matches. Change-Id: I4e2d8fa34e75463d4cf7242af3e2c67577cfa2a5 Signed-off-by: Nico Huber <nico.h@gmx.de> Reviewed-on: https://review.coreboot.org/28301 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
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