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-rw-r--r--src/soc/intel/xeon_sp/cpx/acpi.c316
-rw-r--r--src/soc/intel/xeon_sp/cpx/chip.h3
-rw-r--r--src/soc/intel/xeon_sp/cpx/romstage.c5
3 files changed, 324 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/cpx/acpi.c b/src/soc/intel/xeon_sp/cpx/acpi.c
index 62569e68b7..4c7336396c 100644
--- a/src/soc/intel/xeon_sp/cpx/acpi.c
+++ b/src/soc/intel/xeon_sp/cpx/acpi.c
@@ -448,12 +448,315 @@ static unsigned long acpi_fill_slit(unsigned long current)
return current;
}
+/*
+ * Ports Stack Stack(HOB) IioConfigIou
+ * ==========================================
+ * 0 CSTACK stack 0 IOU0
+ * 1A..1D PSTACK0 stack 1 IOU1
+ * 2A..2D PSTACK1 stack 2 IOU2
+ * 3A..3D PSTACK2 stack 4 IOU3
+ */
+static int get_stack_for_port(int p)
+{
+ if (p == 0)
+ return CSTACK;
+ else if (p >= PORT_1A && p <= PORT_1D)
+ return PSTACK0;
+ else if (p >= PORT_2A && p <= PORT_2D)
+ return PSTACK1;
+ else //if (p >= PORT_3A && p <= PORT_3D)
+ return PSTACK2;
+}
+
+static unsigned long acpi_create_drhd(unsigned long current, int socket, int stack)
+{
+ int IoApicID[] = {
+ // socket 0
+ PC00_IOAPIC_ID, PC01_IOAPIC_ID, PC02_IOAPIC_ID, PC03_IOAPIC_ID,
+ PC04_IOAPIC_ID, PC05_IOAPIC_ID,
+ // socket 1
+ PC06_IOAPIC_ID, PC07_IOAPIC_ID, PC08_IOAPIC_ID, PC09_IOAPIC_ID,
+ PC10_IOAPIC_ID, PC11_IOAPIC_ID,
+ };
+
+ uint32_t enum_id;
+ unsigned long tmp = current;
+
+ size_t hob_size;
+ const uint8_t fsp_hob_iio_universal_data_guid[16] = FSP_HOB_IIO_UNIVERSAL_DATA_GUID;
+ const IIO_UDS *hob = fsp_find_extension_hob_by_guid(
+ fsp_hob_iio_universal_data_guid, &hob_size);
+ assert(hob != NULL && hob_size != 0);
+
+ uint32_t bus = hob->PlatformData.IIO_resource[socket].StackRes[stack].BusBase;
+ uint32_t pcie_seg = hob->PlatformData.CpuQpiInfo[socket].PcieSegment;
+ uint32_t reg_base =
+ hob->PlatformData.IIO_resource[socket].StackRes[stack].VtdBarAddress;
+ printk(BIOS_SPEW, "%s socket: %d, stack: %d, bus: 0x%x, pcie_seg: 0x%x, reg_base: 0x%x\n",
+ __func__, socket, stack, bus, pcie_seg, reg_base);
+
+ // Add DRHD Hardware Unit
+ if (socket == 0 && stack == CSTACK) {
+ printk(BIOS_DEBUG, "[Hardware Unit Definition] Flags: 0x%x, PCI Segment Number: 0x%x, "
+ "Register Base Address: 0x%x\n",
+ DRHD_INCLUDE_PCI_ALL, pcie_seg, reg_base);
+ current += acpi_create_dmar_drhd(current, DRHD_INCLUDE_PCI_ALL,
+ pcie_seg, reg_base);
+ } else {
+ printk(BIOS_DEBUG, "[Hardware Unit Definition] Flags: 0x%x, PCI Segment Number: 0x%x, "
+ "Register Base Address: 0x%x\n", 0, pcie_seg, reg_base);
+ current += acpi_create_dmar_drhd(current, 0, pcie_seg, reg_base);
+ }
+
+ // Add PCH IOAPIC
+ if (socket == 0 && stack == CSTACK) {
+ printk(BIOS_DEBUG, " [IOAPIC Device] Enumeration ID: 0x%x, PCI Bus Number: 0x%x, "
+ "PCI Path: 0x%x, 0x%x\n",
+ PCH_IOAPIC_ID, PCH_IOAPIC_BUS_NUMBER,
+ PCH_IOAPIC_DEV_NUM, PCH_IOAPIC_FUNC_NUM);
+ current += acpi_create_dmar_ds_ioapic(current, PCH_IOAPIC_ID,
+ PCH_IOAPIC_BUS_NUMBER, PCH_IOAPIC_DEV_NUM, PCH_IOAPIC_FUNC_NUM);
+ }
+
+ // Add IOAPIC entry
+ enum_id = IoApicID[(socket*MAX_IIO_STACK)+stack];
+ printk(BIOS_DEBUG, " [IOAPIC Device] Enumeration ID: 0x%x, PCI Bus Number: 0x%x, "
+ "PCI Path: 0x%x, 0x%x\n", enum_id, bus, APIC_DEV_NUM, APIC_FUNC_NUM);
+ current += acpi_create_dmar_ds_ioapic(current, enum_id, bus,
+ APIC_DEV_NUM, APIC_FUNC_NUM);
+
+ // Add CBDMA devices for CSTACK
+ if (socket != 0 && stack == CSTACK) {
+ for (int cbdma_func_id = 0; cbdma_func_id < 8; ++cbdma_func_id) {
+ printk(BIOS_DEBUG, " [PCI Endpoint Device] Enumeration ID: 0x%x, "
+ "PCI Bus Number: 0x%x, PCI Path: 0x%x, 0x%x\n",
+ 0, bus, CBDMA_DEV_NUM, cbdma_func_id);
+ current += acpi_create_dmar_ds_pci(current,
+ bus, CBDMA_DEV_NUM, cbdma_func_id);
+ }
+ }
+
+ // Add PCIe Ports
+ if (socket != 0 || stack != CSTACK) {
+ IIO_RESOURCE_INSTANCE iio_resource =
+ hob->PlatformData.IIO_resource[socket];
+ for (int p = 0; p < NUMBER_PORTS_PER_SOCKET; ++p) {
+ if (get_stack_for_port(p) != stack)
+ continue;
+
+ uint32_t dev = iio_resource.PcieInfo.PortInfo[p].Device;
+ uint32_t func = iio_resource.PcieInfo.PortInfo[p].Function;
+
+ uint32_t id = pci_mmio_read_config32(PCI_DEV(bus, dev, func),
+ PCI_VENDOR_ID);
+ if (id == 0xffffffff)
+ continue;
+
+ printk(BIOS_DEBUG, " [PCI Bridge Device] Enumeration ID: 0x%x, "
+ "PCI Bus Number: 0x%x, PCI Path: 0x%x, 0x%x\n",
+ 0, bus, dev, func);
+ current += acpi_create_dmar_ds_pci_br(current,
+ bus, dev, func);
+ }
+
+ // Add VMD
+ if (hob->PlatformData.VMDStackEnable[socket][stack] &&
+ stack >= PSTACK0 && stack <= PSTACK2) {
+ printk(BIOS_DEBUG, " [PCI Endpoint Device] Enumeration ID: 0x%x, "
+ "PCI Bus Number: 0x%x, PCI Path: 0x%x, 0x%x\n",
+ 0, bus, VMD_DEV_NUM, VMD_FUNC_NUM);
+ current += acpi_create_dmar_ds_pci(current,
+ bus, VMD_DEV_NUM, VMD_FUNC_NUM);
+ }
+ }
+
+ // Add HPET
+ if (socket == 0 && stack == CSTACK) {
+ uint16_t hpet_capid = read16((void *)HPET_BASE_ADDRESS);
+ uint16_t num_hpets = (hpet_capid >> 0x08) & 0x1F; // Bits [8:12] has hpet count
+ printk(BIOS_SPEW, "%s hpet_capid: 0x%x, num_hpets: 0x%x\n",
+ __func__, hpet_capid, num_hpets);
+ //BIT 15
+ if (num_hpets && (num_hpets != 0x1f) &&
+ (read32((void *)(HPET_BASE_ADDRESS + 0x100)) & (0x00008000))) {
+ printk(BIOS_DEBUG, " [Message-capable HPET Device] Enumeration ID: 0x%x, "
+ "PCI Bus Number: 0x%x, PCI Path: 0x%x, 0x%x\n",
+ 0, HPET_BUS_NUM, HPET_DEV_NUM, HPET0_FUNC_NUM);
+ current += acpi_create_dmar_ds_msi_hpet(current, 0, HPET_BUS_NUM,
+ HPET_DEV_NUM, HPET0_FUNC_NUM);
+ }
+ }
+
+ acpi_dmar_drhd_fixup(tmp, current);
+
+ return current;
+}
+
+static unsigned long acpi_create_atsr(unsigned long current)
+{
+ size_t hob_size;
+ const uint8_t uds_guid[16] = FSP_HOB_IIO_UNIVERSAL_DATA_GUID;
+ const IIO_UDS *hob = fsp_find_extension_hob_by_guid(uds_guid, &hob_size);
+ assert(hob != NULL && hob_size != 0);
+
+ for (int socket = 0; socket < hob->PlatformData.numofIIO; ++socket) {
+ uint32_t pcie_seg = hob->PlatformData.CpuQpiInfo[socket].PcieSegment;
+ unsigned long tmp = current;
+ bool first = true;
+ IIO_RESOURCE_INSTANCE iio_resource =
+ hob->PlatformData.IIO_resource[socket];
+
+ for (int stack = 0; stack <= PSTACK2; ++stack) {
+ uint32_t bus = iio_resource.StackRes[stack].BusBase;
+ uint32_t vtd_base = iio_resource.StackRes[stack].VtdBarAddress;
+ if (!vtd_base)
+ continue;
+ uint64_t vtd_mmio_cap = read64((void *)(vtd_base + VTD_EXT_CAP_LOW));
+ printk(BIOS_SPEW, "%s socket: %d, stack: %d, bus: 0x%x, vtd_base: 0x%x, "
+ "vtd_mmio_cap: 0x%llx\n",
+ __func__, socket, stack, bus, vtd_base, vtd_mmio_cap);
+
+ // ATSR is applicable only for platform supporting device IOTLBs
+ // through the VT-d extended capability register
+ assert(vtd_mmio_cap != 0xffffffffffffffff);
+ if ((vtd_mmio_cap & 0x4) == 0) // BIT 2
+ continue;
+
+ for (int p = 0; p < NUMBER_PORTS_PER_SOCKET; ++p) {
+ if (socket == 0 && p == 0)
+ continue;
+ if (get_stack_for_port(p) != stack)
+ continue;
+
+ uint32_t dev = iio_resource.PcieInfo.PortInfo[p].Device;
+ uint32_t func = iio_resource.PcieInfo.PortInfo[p].Function;
+
+ u32 id = pci_mmio_read_config32(PCI_DEV(bus, dev, func),
+ PCI_VENDOR_ID);
+ if (id == 0xffffffff)
+ continue;
+
+ if (first) {
+ printk(BIOS_DEBUG, "[Root Port ATS Capability] Flags: 0x%x, "
+ "PCI Segment Number: 0x%x\n",
+ 0, pcie_seg);
+ current += acpi_create_dmar_atsr(current, 0, pcie_seg);
+ first = 0;
+ }
+
+ printk(BIOS_DEBUG, " [PCI Bridge Device] Enumeration ID: 0x%x, "
+ "PCI Bus Number: 0x%x, PCI Path: 0x%x, 0x%x\n",
+ 0, bus, dev, func);
+ current += acpi_create_dmar_ds_pci_br(current, bus, dev, func);
+ }
+ }
+ if (tmp != current)
+ acpi_dmar_atsr_fixup(tmp, current);
+ }
+
+ return current;
+}
+
+static unsigned long acpi_create_rmrr(unsigned long current)
+{
+ uint32_t size = ALIGN_UP(MEM_BLK_COUNT * sizeof(MEM_BLK), 0x1000);
+
+ uint32_t *ptr;
+
+ // reserve memory
+ ptr = cbmem_find(CBMEM_ID_STORAGE_DATA);
+ if (!ptr) {
+ ptr = cbmem_add(CBMEM_ID_STORAGE_DATA, size);
+ assert(ptr != NULL);
+ memset(ptr, 0, size);
+ }
+
+ unsigned long tmp = current;
+ printk(BIOS_DEBUG, "[Reserved Memory Region] PCI Segment Number: 0x%x, Base Address: 0x%x, "
+ "End Address (limit): 0x%x\n",
+ 0, (uint32_t) ptr, (uint32_t) ((uint32_t) ptr + size - 1));
+ current += acpi_create_dmar_rmrr(current, 0, (uint32_t) ptr,
+ (uint32_t) ((uint32_t) ptr + size - 1));
+
+ printk(BIOS_DEBUG, " [PCI Endpoint Device] Enumeration ID: 0x%x, PCI Bus Number: 0x%x, "
+ "PCI Path: 0x%x, 0x%x\n",
+ 0, XHCI_BUS_NUMBER, PCH_DEV_SLOT_XHCI, XHCI_FUNC_NUM);
+ current += acpi_create_dmar_ds_pci(current, XHCI_BUS_NUMBER,
+ PCH_DEV_SLOT_XHCI, XHCI_FUNC_NUM);
+
+ acpi_dmar_rmrr_fixup(tmp, current);
+
+ return current;
+}
+
+static unsigned long acpi_create_rhsa(unsigned long current)
+{
+ size_t hob_size;
+ const uint8_t uds_guid[16] = FSP_HOB_IIO_UNIVERSAL_DATA_GUID;
+ const IIO_UDS *hob = fsp_find_extension_hob_by_guid(uds_guid, &hob_size);
+ assert(hob != NULL && hob_size != 0);
+
+ for (int socket = 0; socket < hob->PlatformData.numofIIO; ++socket) {
+ IIO_RESOURCE_INSTANCE iio_resource =
+ hob->PlatformData.IIO_resource[socket];
+ for (int stack = 0; stack <= PSTACK2; ++stack) {
+ uint32_t vtd_base = iio_resource.StackRes[stack].VtdBarAddress;
+ if (!vtd_base)
+ continue;
+
+ printk(BIOS_DEBUG, "[Remapping Hardware Static Affinity] Base Address: 0x%x, "
+ "Proximity Domain: 0x%x\n", vtd_base, socket);
+ current += acpi_create_dmar_rhsa(current, vtd_base, socket);
+ }
+ }
+
+ return current;
+}
+
+static unsigned long acpi_fill_dmar(unsigned long current)
+{
+ size_t hob_size;
+ const uint8_t uds_guid[16] = FSP_HOB_IIO_UNIVERSAL_DATA_GUID;
+ const IIO_UDS *hob = fsp_find_extension_hob_by_guid(uds_guid, &hob_size);
+ assert(hob != NULL && hob_size != 0);
+
+ // DRHD
+ for (int iio = 1; iio <= hob->PlatformData.numofIIO; ++iio) {
+ int socket = iio;
+ if (socket == hob->PlatformData.numofIIO) // socket 0 should be last DRHD entry
+ socket = 0;
+
+ if (socket == 0) {
+ for (int stack = 1; stack <= PSTACK2; ++stack)
+ current = acpi_create_drhd(current, socket, stack);
+ current = acpi_create_drhd(current, socket, CSTACK);
+ } else {
+ for (int stack = 0; stack <= PSTACK2; ++stack)
+ current = acpi_create_drhd(current, socket, stack);
+ }
+ }
+
+ // RMRR
+ current = acpi_create_rmrr(current);
+
+ // ATSR - causes hang
+ current = acpi_create_atsr(current);
+
+ // RHSA
+ current = acpi_create_rhsa(current);
+
+ return current;
+}
+
unsigned long northbridge_write_acpi_tables(const struct device *device,
unsigned long current,
struct acpi_rsdp *rsdp)
{
acpi_srat_t *srat;
acpi_slit_t *slit;
+ acpi_dmar_t *dmar;
+
+ const struct soc_intel_xeon_sp_cpx_config *const config = config_of(device);
/* SRAT */
current = ALIGN(current, 8);
@@ -471,5 +774,18 @@ unsigned long northbridge_write_acpi_tables(const struct device *device,
current += slit->header.length;
acpi_add_table(rsdp, slit);
+ /* DMAR */
+ if (config->vtd_support) {
+ current = ALIGN(current, 8);
+ dmar = (acpi_dmar_t *)current;
+ printk(BIOS_DEBUG, "ACPI: * DMAR\n");
+ printk(BIOS_DEBUG, "[DMA Remapping table] Flags: 0x%x\n",
+ (DMAR_INTR_REMAP | DMAR_X2APIC_OPT_OUT));
+ acpi_create_dmar(dmar, (DMAR_INTR_REMAP | DMAR_X2APIC_OPT_OUT), acpi_fill_dmar);
+ current += dmar->header.length;
+ current = acpi_align_current(current);
+ acpi_add_table(rsdp, dmar);
+ }
+
return current;
}
diff --git a/src/soc/intel/xeon_sp/cpx/chip.h b/src/soc/intel/xeon_sp/cpx/chip.h
index aa605a4aad..434b343bb2 100644
--- a/src/soc/intel/xeon_sp/cpx/chip.h
+++ b/src/soc/intel/xeon_sp/cpx/chip.h
@@ -84,6 +84,9 @@ struct soc_intel_xeon_sp_cpx_config {
uint32_t pstate_req_ratio;
+ uint8_t vtd_support;
+ uint8_t x2apic;
+
/* Generic IO decode ranges */
uint32_t gen1_dec;
uint32_t gen2_dec;
diff --git a/src/soc/intel/xeon_sp/cpx/romstage.c b/src/soc/intel/xeon_sp/cpx/romstage.c
index 6c65994412..a198c993f3 100644
--- a/src/soc/intel/xeon_sp/cpx/romstage.c
+++ b/src/soc/intel/xeon_sp/cpx/romstage.c
@@ -15,6 +15,7 @@ void platform_fsp_memory_init_params_cb(FSPM_UPD *mupd, uint32_t version)
{
FSPM_CONFIG *m_cfg = &mupd->FspmConfig;
const struct device *dev;
+ const config_t *config = config_of_soc();
/* ErrorLevel - 0 (disable) to 8 (verbose) */
m_cfg->DebugPrintLevel = 8;
@@ -68,5 +69,9 @@ void platform_fsp_memory_init_params_cb(FSPM_UPD *mupd, uint32_t version)
dev = pcidev_path_on_root(PCH_DEVFN_THERMAL);
m_cfg->ThermalDeviceEnable = dev && dev->enabled;
+ /* Enable VT-d according to DTB */
+ m_cfg->VtdSupport = config->vtd_support;
+ m_cfg->X2apic = config->x2apic;
+
mainboard_memory_init_params(mupd);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 03:55:18 +0000