soc/amd/common/acpi: factor out common MADT code

The acpi_fill_madt implementation from the Genoa PoC also works for the
other AMD SoCs that select SOC_AMD_COMMON_BLOCK_DATA_FABRIC_DOMAIN, so
factor out this function to the common AMD ACPI code and change those
other SoCs to use the new common functionality instead of having their
own implementations.

The old code on the single-domain SoCs used the GNB_IO_APIC_ADDR base
address to create the MADT entry for the additional IOAPIC in the root
complex. The new code iterates over all domains and looks for a resource
with the IOMMU_IOAPIC_IDX index in each domain and if it finds it, it
creates an MADT entry for that IOAPIC. This resource is created earlier
in the boot process when the non-PCI resources are read from the IOHC
registers and reported to the allocator.

TEST=The resulting MADT doesn't change on Mandolin

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: I4cc0d3f30b4e6ba29542dcfde84ccac90820d258
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79861
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

2 files changed, 1 insertions, 17 deletions

diff --git a/src/soc/amd/genoa_poc/Kconfig b/src/soc/amd/genoa_poc/Kconfig
index 19ffe6c40b92..09e04f3e57f3 100644
--- a/src/soc/amd/genoa_poc/Kconfig
+++ b/src/soc/amd/genoa_poc/Kconfig
@@ -17,6 +17,7 @@ config SOC_SPECIFIC_OPTIONS
 	select SOC_AMD_COMMON_BLOCK_ACPIMMIO
 	select SOC_AMD_COMMON_BLOCK_ACPI_CPU_POWER_STATE
 	select SOC_AMD_COMMON_BLOCK_ACPI_IVRS
+	select SOC_AMD_COMMON_BLOCK_ACPI_MADT
 	select SOC_AMD_COMMON_BLOCK_AOAC
 	select SOC_AMD_COMMON_BLOCK_BANKED_GPIOS
 	select SOC_AMD_COMMON_BLOCK_CPUFREQ_FAM17H_19H
diff --git a/src/soc/amd/genoa_poc/acpi.c b/src/soc/amd/genoa_poc/acpi.c
index d9b934f42a2c..7762e9d4c7a4 100644
--- a/src/soc/amd/genoa_poc/acpi.c
+++ b/src/soc/amd/genoa_poc/acpi.c
@@ -6,29 +6,12 @@
 #include <amdblocks/acpi.h>
 #include <amdblocks/acpimmio.h>
 #include <amdblocks/cpu.h>
-#include <amdblocks/data_fabric.h>
 #include <arch/ioapic.h>
 #include <console/console.h>
 #include <device/device.h>
 #include <soc/acpi.h>
 #include <vendorcode/amd/opensil/genoa_poc/opensil.h>
 
-/* TODO: this can go in a common place */
-unsigned long acpi_fill_madt(unsigned long current)
-{
-	struct device *dev = NULL;
-	while ((dev = dev_find_path(dev, DEVICE_PATH_DOMAIN)) != NULL) {
-		struct resource *res = probe_resource(dev, IOMMU_IOAPIC_IDX);
-		if (!res)
-			continue;
-
-		current += acpi_create_madt_ioapic_from_hw((acpi_madt_ioapic_t *)current,
-						   res->base);
-	}
-
-	return current;
-}
-
 void acpi_fill_fadt(acpi_fadt_t *fadt)
 {
 	/* Fill in pm1_evt, pm1_cnt, pm_tmr, gpe0_blk from openSIL input structure */