[S] Change in coreboot[master]: soc/intel/eklhartlake: Provide an option to disable the L1 prefetcher

[Werner Zeh (Code Review)]

Attention is currently required from: Lean Sheng Tan, Werner Zeh.

Hello build bot (Jenkins), Angel Pons, Lean Sheng Tan,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/68667

to look at the new patch set (#3).

Change subject: soc/intel/eklhartlake: Provide an option to disable the L1 prefetcher
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soc/intel/eklhartlake: Provide an option to disable the L1 prefetcher

Depending on the real workload that is executed on the system the L1
prefetcher might be too aggressive and will populate the L1 cache ahead
with data that is not really needed. In the end, this will result in a
higher cache miss rate thus slowing down the real application.

This patch provides a devicetree option to disable the L1 prefetcher if
needed. This can be requested on mainboard level if needed.

Change-Id: I3fc8fb79c42c298a20928ae4912ee23916463038
Signed-off-by: Werner Zeh 
---
M src/soc/intel/elkhartlake/chip.h
M src/soc/intel/elkhartlake/cpu.c
2 files changed, 29 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/67/68667/3