soc/amd/genoa: add root complex support code

This functionality will eventually be used by the common data fabric
domain resource reporting code.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ieedd432c144e53e43d8099ec617a15056bb36fd1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78307
Reviewed-by: Eric Lai <ericllai@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Felix Held 2023-08-23 22:15:39 +02:00
parent 58d00e604d
commit be9fcf10ab
2 changed files with 63 additions and 0 deletions

View File

@ -14,6 +14,7 @@ romstage-y += romstage.c
ramstage-y += aoac.c
ramstage-y += chip.c
ramstage-y += root_complex.c
CPPFLAGS_common += -I$(src)/soc/amd/genoa/include

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@ -0,0 +1,62 @@
/* SPDX-License-Identifier: GPL-2.0-only */
#include <amdblocks/data_fabric.h>
#include <amdblocks/root_complex.h>
#include <console/console.h>
#include <device/device.h>
#include <types.h>
uint32_t get_iohc_misc_smn_base(struct device *domain)
{
switch (domain->path.domain.domain) {
case 0:
return SMN_IOHC_MISC_BASE_13C1;
case 1:
return SMN_IOHC_MISC_BASE_13B1;
case 2:
return SMN_IOHC_MISC_BASE_13E1;
case 3:
return SMN_IOHC_MISC_BASE_13D1;
default:
printk(BIOS_ERR, "Invalid domain 0x%x with no corresponding IOHC device.\n",
domain->path.domain.domain);
return 0;
}
}
static const struct non_pci_mmio_reg non_pci_mmio[] = {
{ 0x2d8, 0xfffffff00000ull, 1 * MiB, NON_PCI_RES_IDX_AUTO },
{ 0x2e0, 0xfffffff00000ull, 1 * MiB, NON_PCI_RES_IDX_AUTO },
{ 0x2e8, 0xfffffff00000ull, 1 * MiB, NON_PCI_RES_IDX_AUTO },
/* The hardware has a 256 byte alignment requirement for the IOAPIC MMIO base, but we
tell the FSP to configure a 4k-aligned base address and this is reported as 4 KiB
resource. */
{ 0x2f0, 0xffffffffff00ull, 4 * KiB, IOMMU_IOAPIC_IDX },
{ 0x2f8, 0xfffffff00000ull, 1 * MiB, NON_PCI_RES_IDX_AUTO },
{ 0x300, 0xfffffff00000ull, 1 * MiB, NON_PCI_RES_IDX_AUTO },
{ 0x308, 0xfffffffff000ull, 4 * KiB, NON_PCI_RES_IDX_AUTO },
{ 0x310, 0xfffffff00000ull, 1 * MiB, NON_PCI_RES_IDX_AUTO },
{ 0x318, 0xfffffff80000ull, 512 * KiB, NON_PCI_RES_IDX_AUTO },
};
const struct non_pci_mmio_reg *get_iohc_non_pci_mmio_regs(size_t *count)
{
*count = ARRAY_SIZE(non_pci_mmio);
return non_pci_mmio;
}
signed int get_iohc_fabric_id(struct device *domain)
{
switch (domain->path.domain.domain) {
case 0:
return 0x22;
case 1:
return 0x23;
case 2:
return 0x21;
case 3:
return 0x20;
default:
return -1;
}
}