[coreboot-gerrit] [M] Change in coreboot[master]: soc/intel/common: Add code to order the different types of cores

[Sridhar Siricilla (Code Review)]

Attention is currently required from: Subrata Banik, Sridhar Siricilla, Kyösti Mälkki, Elyes Haouas.

Hello build bot (Jenkins), Subrata Banik, Ronak Kanabar, Sukumar Ghorai, Kyösti Mälkki, Elyes Haouas,

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

https://review.coreboot.org/c/coreboot/+/72132

to look at the new patch set (#15).

Change subject: soc/intel/common: Add code to order the different types of cores
......................................................................

soc/intel/common: Add code to order the different types of cores

Currently coreboot presents the BSP core first, then efficient cores and
Performance cores as indicated below:
for c in {0..7};
do
    cat /sys/devices/system/cpu/cpu$c/topology/thread_siblings_list;
done
0-1
4
5
6
7
0-1
2-3
2-3

Existing code presents mix of different cores to OS and causes CPU load
balancing and power/performance impact. So, the patch fixes this
disorder by ordering the Performance cores first, compute die efficient
cores next, and finally SOC efficient cores if they are present.

BUG=b:262886449
TEST=Verified the code on Rex system

After the fix:
for c in {0..7};
do
    cat /sys/devices/system/cpu/cpu$c/topology/thread_siblings_list;
done
0-1
0-1
2-3
2-3
4
5
6
7

Change-Id: I21487a5eb0439ea0cb5976787d1769ee94777469
Signed-off-by: Sridhar Siricilla 
---
M src/soc/intel/common/block/acpi/acpi.c
M src/soc/intel/common/block/acpi/cpu_hybrid.c
M src/soc/intel/common/block/include/intelblocks/acpi.h
3 files changed, 88 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/32/72132/15