[S] Change in coreboot[master]: soc/amd/common/iommu.c: Make sure iommu is enabled

[Felix Held (Code Review)]

Attention is currently required from: Arthur Heymans, Fred Reitberger, Jason Glenesk, Matt DeVillier, Naresh Solanki, Raul Rangel.

Felix Held has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/75829?usp=email )

Change subject: soc/amd/common/iommu.c: Make sure iommu is enabled
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Patch Set 3: Code-Review+1

(3 comments)

File src/soc/amd/common/block/iommu/iommu.c:

https://review.coreboot.org/c/coreboot/+/75829/comment/c09e07eb_42bf5d18 :
PS3, Line 21: 	res->flags = IORESOURCE_MEM;
probably something for a separate patch, but shouldn't we add IORESOURCE_PCI64 here too, so that the upper register will also be written by pci_dev_set_resources?

https://review.coreboot.org/c/coreboot/+/75829/comment/1bf6ef0d_1256a708 :
PS3, Line 27: 0x44
would be good to have a define for the iommu pci config space registers 0x44 and 0x48

https://review.coreboot.org/c/coreboot/+/75829/comment/ceef4389_d1f38507 :
PS3, Line 28: 1
would be good to have a define for the iommu enable bit