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2018-04-11Correct "MTTR" to "MTRR"Jonathan Neuschäfer
The term MTRR has been misspelled in a few places. Change-Id: I3e3c11f80de331fa45ae89779f2b8a74a0097c74 Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net> Reviewed-on: https://review.coreboot.org/25568 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2017-09-27soc/amd/stoneyridge: Revert CAR teardown wbinvdMarshall Dawson
Change the cache-as-ram teardown to use invd instead of wbinvd. Save the return and recover the call's return address in chipset_teardown_car. CAR teardown had been modified to use wbinvd to send CAR contents to DRAM backing prior to teardown. This allowed CAR variables, stack, and local variables to be preserved while running the AMD_DISABLE_STACK macro. Using the wbinvd instruction has the side effect of sending all dirty cache contents to DRAM and not only our CAR data. This would likely cause corruption, e.g. during S3 resume. Stoney Ridge now uses a postcar stage and this is no longer a requirement. BUG=b:64768556 Change-Id: I8e6bcb3947f508b1db1a42fd0714bba70074837a Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Reviewed-on: https://review.coreboot.org/20967 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2017-07-15vendorcode/amd/pi: Tidy up gcccar.incKyösti Mälkki
Remove register preservations that are not required and fix comments about register usage accordingly. Change-Id: Ibc9ed982ac55e947c100739250db122033348a82 Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/20576 Reviewed-by: Marc Jones <marc@marcjonesconsulting.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2017-07-15vendorcode/amd/pi: Clarify CAR disableMarc Jones
Clean up commentary on AMD_DISABLE_STACK to be clear that it does a wbinvd to preserve coreboot CBMEM and value of car_migrated. Change-Id: I1265ed3d1bdf4b22f1a56f68bc53e18cfadc44b2 Signed-off-by: Marc Jones <marcj303@gmail.com> Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com> Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/19269 Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2016-11-07vendorcode/amd: Copy 00660F01 directory to 00670F00Marc Jones
Prepare for new 00670FF00 support. Original-Signed-off-by: Marc Jones <marcj303@gmail.com> Original-Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com> Original-Tested-by: Marshall Dawson <marshalldawson3rd@gmail.com> (cherry picked from commit ca53cac5c847c55e56ad6f5feb382c04f33ae77a) Change-Id: Ib48b1611bf70ec302c50f6e07bd2b3d9b09e0a24 Signed-off-by: Marc Jones <marcj303@gmail.com> Reviewed-on: https://review.coreboot.org/17193 Tested-by: build bot (Jenkins) Reviewed-by: Martin Roth <martinroth@google.com>