soc/amd: rework DRAM and fixed resource reporting

Introduce read_soc_memmap_resources which gets called by
amd_pci_domain_read_resources for the first domain of the SoC to report
the DRAM and PCI config space access resources to the allocator. For
Genoa this allows to use amd_pci_domain_read_resources as read_resources
in the genoa_pci_domain_ops instead of needing to wrap that call to be
able to call add_opensil_memmap for the first domain. For the other
family 17h+ SoCs the moves the reporting of the DRAM resources and the
PCI config space access resources from the northbridge device to the
domain device.

TEST=Resources still get reported on Mandolin, but now under the domain
instead of the northbridge PCI device

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ib19fd94e06fa3a1d95ade7fafe22db013045a942
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80268
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

2 files changed, 7 insertions, 0 deletions

diff --git a/src/soc/amd/common/block/data_fabric/domain.c b/src/soc/amd/common/block/data_fabric/domain.c
index 8533dffcc4e8..65735574d10d 100644
--- a/src/soc/amd/common/block/data_fabric/domain.c
+++ b/src/soc/amd/common/block/data_fabric/domain.c
@@ -200,6 +200,11 @@ void amd_pci_domain_read_resources(struct device *domain)
 	add_data_fabric_mmio_regions(domain, &idx);
 
 	read_non_pci_resources(domain, &idx);
+
+	/* Only add the SoC's DRAM memory map and fixed resources once */
+	if (domain->path.domain.domain == 0) {
+		read_soc_memmap_resources(domain, &idx);
+	}
 }
 
 static void write_ssdt_domain_io_producer_range_helper(const char *domain_name,
diff --git a/src/soc/amd/common/block/include/amdblocks/root_complex.h b/src/soc/amd/common/block/include/amdblocks/root_complex.h
index 0eef5e8ae55a..cac659e756b3 100644
--- a/src/soc/amd/common/block/include/amdblocks/root_complex.h
+++ b/src/soc/amd/common/block/include/amdblocks/root_complex.h
@@ -22,6 +22,8 @@ struct non_pci_mmio_reg {
 
 void read_non_pci_resources(struct device *domain, unsigned long *idx);
 
+void read_soc_memmap_resources(struct device *domain, unsigned long *idx);
+
 uint32_t get_iohc_misc_smn_base(struct device *domain);
 const struct non_pci_mmio_reg *get_iohc_non_pci_mmio_regs(size_t *count);