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cpu/intel: allow non-packaged scoped turbo setting

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In the past the turbo disable setting (bit 38) of the
IA32_MISC_ENABLES msr has been package scoped. That means
knocking the turbo disable bit down enabled turbo for the
entire package. Sadly, that's no longer true on all Intel
processors. Therefore, allow non-packaged scoped turbo
setting by introducing the CPU_INTEL_TURBO_NOT_PACKAGE_SCOPED
Kconfig option. It defaults to false which was the original
assumption.

BUG=chrome-os-partner:25014
BRANCH=baytrail
TEST=Built and ran both ways successfully.

Change-Id: I71a31e76ff47878023081fc47da643187517b597
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/182405
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: http://review.coreboot.org/5047
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
This commit is contained in:
Aaron Durbin
2014-01-14 17:28:33 -06:00
committed by Aaron Durbin
parent cd3f8ad235
commit ba6b07e888
3 changed files with 32 additions and 2 deletions
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src/cpu/intel/Kconfig
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@@ -37,3 +37,4 @@ source src/cpu/intel/socket_LGA775/Kconfig
source src/cpu/intel/socket_rPGA989/Kconfig
# Architecture specific features
source src/cpu/intel/fit/Kconfig
source src/cpu/intel/turbo/Kconfig