Felix Held has submitted this change. ( https://review.coreboot.org/c/coreboot/+/79996?usp=email )
Change subject: soc/amd/common,genoa_poc/domain: rework check for 1st domain ......................................................................
soc/amd/common,genoa_poc/domain: rework check for 1st domain
Previously the code checked if the first downstream bus of the domain was bus 0 in segment group 0 to only run certain code for the first domain. Instead check if the domain number is 0 which should make the code a bit easier to understand.
TEST=add_opensil_memmap still gets called exactly once on Onyx
Signed-off-by: Felix Held felix-coreboot@felixheld.de Change-Id: Id8cc0078843e5e0361a53ba897cde508cee16aad Reviewed-on: https://review.coreboot.org/c/coreboot/+/79996 Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Arthur Heymans arthur@aheymans.xyz --- M src/soc/amd/common/block/data_fabric/domain.c M src/soc/amd/genoa_poc/domain.c 2 files changed, 2 insertions(+), 2 deletions(-)
Approvals: build bot (Jenkins): Verified Arthur Heymans: Looks good to me, approved
diff --git a/src/soc/amd/common/block/data_fabric/domain.c b/src/soc/amd/common/block/data_fabric/domain.c index f17346f..7bcc01b 100644 --- a/src/soc/amd/common/block/data_fabric/domain.c +++ b/src/soc/amd/common/block/data_fabric/domain.c @@ -254,7 +254,7 @@ acpigen_resource_producer_bus_number(domain->downstream->secondary, domain->downstream->max_subordinate);
- if (domain->downstream->secondary == 0 && domain->downstream->segment_group == 0) { + if (domain->path.domain.domain == 0) { /* ACPI 6.4.2.5 I/O Port Descriptor */ acpigen_write_io16(PCI_IO_CONFIG_INDEX, PCI_IO_CONFIG_LAST_PORT, 1, PCI_IO_CONFIG_PORT_COUNT, 1); diff --git a/src/soc/amd/genoa_poc/domain.c b/src/soc/amd/genoa_poc/domain.c index 57e020a..653e2d2 100644 --- a/src/soc/amd/genoa_poc/domain.c +++ b/src/soc/amd/genoa_poc/domain.c @@ -18,7 +18,7 @@ amd_pci_domain_read_resources(domain);
// We only want to add the DRAM memory map once - if (domain->downstream->secondary == 0 && domain->downstream->segment_group == 0) { + if (domain->path.domain.domain == 0) { /* 0x1000 is a large enough first index to be sure to not overlap with the resources added by amd_pci_domain_read_resources */ add_opensil_memmap(domain, 0x1000);