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-rw-r--r--src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h6
-rw-r--r--src/soc/intel/xeon_sp/cpx/soc_util.c21
-rw-r--r--src/soc/intel/xeon_sp/include/soc/util.h1
-rw-r--r--src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h4
-rw-r--r--src/soc/intel/xeon_sp/skx/soc_util.c21
-rw-r--r--src/soc/intel/xeon_sp/uncore_acpi.c39
6 files changed, 33 insertions, 59 deletions
diff --git a/src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h b/src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h
index 762e2e2fd8..ffefd3e792 100644
--- a/src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h
+++ b/src/soc/intel/xeon_sp/cpx/include/soc/pci_devs.h
@@ -151,9 +151,6 @@
#define VTD_DEV(bus) PCI_DEV((bus), VTD_DEV_NUM, VTD_FUNC_NUM)
#endif
-#define APIC_DEV_NUM 0x05
-#define APIC_FUNC_NUM 0x04
-
/* Root port Registers */
#define RP_UNCERRMSK 0x150
#define SURPRISE_DWN_ERR_MSK (1 << 5)
@@ -165,6 +162,9 @@
#define DEVICES_PER_IIO_STACK 4
+// Per stack PCI IOAPIC (BxD5F4)
+#define APIC_ABAR 0x40
+
// DMI3 B0D0F0 registers
#define DMI3_DEVID 0x2020
#define DMIRCBAR 0x50
diff --git a/src/soc/intel/xeon_sp/cpx/soc_util.c b/src/soc/intel/xeon_sp/cpx/soc_util.c
index e56e9670cf..134b40cd76 100644
--- a/src/soc/intel/xeon_sp/cpx/soc_util.c
+++ b/src/soc/intel/xeon_sp/cpx/soc_util.c
@@ -35,27 +35,6 @@ bool is_ubox_stack_res(const STACK_RES *res)
return res->Personality == TYPE_UBOX;
}
-uint8_t soc_get_iio_ioapicid(int socket, int stack)
-{
- uint8_t ioapic_id = socket ? 0xf : 0x9;
- switch (stack) {
- case CSTACK:
- break;
- case PSTACK0:
- ioapic_id += 1;
- break;
- case PSTACK1:
- ioapic_id += 2;
- break;
- case PSTACK2:
- ioapic_id += 3;
- break;
- default:
- return 0xff;
- }
- return ioapic_id;
-}
-
void soc_set_mrc_cold_boot_flag(bool cold_boot_required)
{
uint8_t mrc_status = cmos_read(CMOS_OFFSET_MRC_STATUS);
diff --git a/src/soc/intel/xeon_sp/include/soc/util.h b/src/soc/intel/xeon_sp/include/soc/util.h
index 95d127d825..8e5833a245 100644
--- a/src/soc/intel/xeon_sp/include/soc/util.h
+++ b/src/soc/intel/xeon_sp/include/soc/util.h
@@ -15,7 +15,6 @@ const IIO_UDS *get_iio_uds(void);
unsigned int soc_get_num_cpus(void);
bool soc_cpu_is_enabled(const size_t idx);
void set_bios_init_completion(void);
-uint8_t soc_get_iio_ioapicid(int socket, int stack);
bool is_memtype_non_volatile(uint16_t mem_type);
bool is_memtype_reserved(uint16_t mem_type);
diff --git a/src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h b/src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h
index e245bfb5dd..78393c1330 100644
--- a/src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h
+++ b/src/soc/intel/xeon_sp/skx/include/soc/pci_devs.h
@@ -186,8 +186,8 @@
#define VMD_DEV_NUM 0x05
#define VMD_FUNC_NUM 0x05
-#define APIC_DEV_NUM 0x05
-#define APIC_FUNC_NUM 0x00
+// Per stack PCI IOAPIC (BxD5F4)
+#define APIC_ABAR 0x40
// DMI3 B0D0F0 registers
#define DMI3_DEVID 0x2020
diff --git a/src/soc/intel/xeon_sp/skx/soc_util.c b/src/soc/intel/xeon_sp/skx/soc_util.c
index ed6fa4c544..387b5668f5 100644
--- a/src/soc/intel/xeon_sp/skx/soc_util.c
+++ b/src/soc/intel/xeon_sp/skx/soc_util.c
@@ -119,27 +119,6 @@ void config_reset_cpl3_csrs(void)
}
#endif
-uint8_t soc_get_iio_ioapicid(int socket, int stack)
-{
- uint8_t ioapic_id = socket ? 0xf : 0x9;
- switch (stack) {
- case CSTACK:
- break;
- case PSTACK0:
- ioapic_id += 1;
- break;
- case PSTACK1:
- ioapic_id += 2;
- break;
- case PSTACK2:
- ioapic_id += 3;
- break;
- default:
- return 0xff;
- }
- return ioapic_id;
-}
-
bool is_memtype_reserved(uint16_t mem_type)
{
return !!(mem_type & MEM_TYPE_RESERVED);
diff --git a/src/soc/intel/xeon_sp/uncore_acpi.c b/src/soc/intel/xeon_sp/uncore_acpi.c
index 9823d947b2..a694d08abc 100644
--- a/src/soc/intel/xeon_sp/uncore_acpi.c
+++ b/src/soc/intel/xeon_sp/uncore_acpi.c
@@ -10,6 +10,7 @@
#include <device/pci.h>
#include <device/pciexp.h>
#include <device/pci_ids.h>
+#include <device/pci_ops.h>
#include <soc/acpi.h>
#include <soc/chip_common.h>
#include <soc/hest.h>
@@ -275,21 +276,37 @@ static unsigned long acpi_create_drhd(unsigned long current, struct device *iomm
if (is_dev_on_domain0(iommu)) {
union p2sb_bdf ioapic_bdf = soc_get_ioapic_bdf();
printk(BIOS_DEBUG, " [IOAPIC Device] Enumeration ID: 0x%x, PCI Bus Number: 0x%x, "
- "PCI Path: 0x%x, 0x%x\n", get_ioapic_id(IO_APIC_ADDR), ioapic_bdf.bus,
- ioapic_bdf.dev, ioapic_bdf.fn);
+ "PCI Path: 0x%x, 0x%x, Address: 0x%x\n", get_ioapic_id(IO_APIC_ADDR), ioapic_bdf.bus,
+ ioapic_bdf.dev, ioapic_bdf.fn, IO_APIC_ADDR);
current += acpi_create_dmar_ds_ioapic_from_hw(current,
IO_APIC_ADDR, ioapic_bdf.bus, ioapic_bdf.dev, ioapic_bdf.fn);
}
-/* SPR and later SoCs have no per stack IOAPIC */
-#if CONFIG(SOC_INTEL_SKYLAKE_SP) || CONFIG(SOC_INTEL_COOPERLAKE_SP)
- uint32_t enum_id;
- // Add IOAPIC entry
- enum_id = soc_get_iio_ioapicid(socket, 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);
+#if (CONFIG(SOC_INTEL_SKYLAKE_SP) || CONFIG(SOC_INTEL_COOPERLAKE_SP))
+ /* 14nm Xeon-SP have per stack PCI IOAPIC */
+ {
+ const struct device *domain = dev_get_domain(iommu);
+ struct device *dev = NULL;
+ while ((dev = dev_bus_each_child(domain->downstream, dev))) {
+ if (!is_pci_ioapic(dev))
+ continue;
+
+ const uint32_t b = dev->upstream->secondary;
+ const uint32_t d = PCI_SLOT(dev->path.pci.devfn);
+ const uint32_t f = PCI_FUNC(dev->path.pci.devfn);
+
+ u16 abar = pci_read_config16(dev, APIC_ABAR);
+ if (!abar)
+ continue;
+ const u32 addr = IO_APIC_ADDR | ((abar & 0xfff) << 8);
+
+ printk(BIOS_DEBUG, " [IOAPIC Device] Enumeration ID: 0x%x, PCI Bus Number: 0x%x, "
+ "PCI Path: 0x%x, 0x%x, Address: 0x%x\n", get_ioapic_id(addr), b, d, f, addr);
+
+ current += acpi_create_dmar_ds_ioapic_from_hw(
+ current, addr, b, d, f);
+ }
+ }
#endif
if (flags != DRHD_INCLUDE_PCI_ALL) {