[coreboot-gerrit] Change in coreboot[master]: soc/block/systemagent: Do more fine grained resource allocation

[Arthur Heymans (Code Review)]

Attention is currently required from: Angel Pons, Patrick Rudolph.
Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/59845 )

Change subject: soc/block/systemagent: Do more fine grained resource allocation
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Patch Set 1:

(1 comment)

File src/soc/intel/common/block/systemagent/systemagent.c:

https://review.coreboot.org/c/coreboot/+/59845/comment/8ada0417_880060be 
PS1, Line 191: 		reserved_ram_resource(dev, index++, base_k / KiB, size_k / KiB);
> IIRC, the cacheability of TSEG is ultimately decided by SMRRs, which override MTRR settings. With this patch, I'd expect MTRR usage to increase.

Not quite. Often TOLUD is a multiple of 1G, so marking TSEG, which is below TOLUD, as WB instead of UC improves the solution.