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authorFelix Held <felix-coreboot@felixheld.de>2023-04-24 17:58:24 +0200
committerFelix Held <felix-coreboot@felixheld.de>2023-06-07 00:07:36 +0000
commit407bd58da12b28a7a5092c388e1e94a9d6fb1128 (patch)
treeb1b39e9c5055af2bfa9c8f074b9a9d85760067e3 /3rdparty/cmocka
parent11ff753407ee7fd1cb2da06f8bedc5ac40ebbd95 (diff)
soc/amd/common/data_fabric/domain: provide scan_bus and read_resources
Provide amd_pci_domain_scan_bus to enumerate the PCI buses in the one PCI root domain and amd_pci_domain_read_resources to read the MMIO regions that the resource allocator can use to allocate the PCI MMIO BARs in the one PCI root domain from the corresponding data fabric MMIO decode registers. This makes sure that the allocator will only put PCI MMIO resources in areas that are decoded to the PCIe root complex. The current code only covers the case of a system with one PCI root where all PCI bus numbers belong to the only PCI root, all IO ports get decoded to the only PCI root and the MMIO regions from the data fabric MMIO decode registers get decoded to the only PCI root. In future patches, this will be extended to also support the multi PCI root case. TEST=With also the rest of the current patch train applied, the resource allocator uses the constraints on the MMIO regions and both Linux and Windows boot on Mandolin. Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Change-Id: I4aada7c8a2a43145ad08d11d0a38d9cdc182b98e Reviewed-on: https://review.coreboot.org/c/coreboot/+/74717 Reviewed-by: Nico Huber <nico.h@gmx.de> Reviewed-by: Raul Rangel <rrangel@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to '3rdparty/cmocka')
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