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-rw-r--r--src/soc/intel/xeon_sp/chip_gen1.c8
-rw-r--r--src/soc/intel/xeon_sp/spr/ioat.c21
2 files changed, 26 insertions, 3 deletions
diff --git a/src/soc/intel/xeon_sp/chip_gen1.c b/src/soc/intel/xeon_sp/chip_gen1.c
index 117de9ca00..a68c764662 100644
--- a/src/soc/intel/xeon_sp/chip_gen1.c
+++ b/src/soc/intel/xeon_sp/chip_gen1.c
@@ -7,6 +7,7 @@
#include <device/pci_ids.h>
#include <soc/pci_devs.h>
#include <intelblocks/acpi.h>
+#include <intelblocks/vtd.h>
#include <soc/acpi.h>
#include <soc/chip_common.h>
#include <soc/soc_util.h>
@@ -54,6 +55,13 @@ static void iio_pci_domain_read_resources(struct device *dev)
if (sr->PciResourceMem64Base < sr->PciResourceMem64Limit)
domain_mem_window_from_to(dev, index++,
sr->PciResourceMem64Base, sr->PciResourceMem64Limit + 1);
+
+ /* Declare domain reserved MMIO */
+ uint64_t reserved_mmio = sr->VtdBarAddress + vtd_probe_bar_size(pcidev_on_root(0, 0));
+ if ((reserved_mmio >= sr->PciResourceMem32Base) &&
+ (reserved_mmio <= sr->PciResourceMem32Limit))
+ mmio_range(dev, index++, reserved_mmio,
+ sr->PciResourceMem32Limit - reserved_mmio + 1);
}
/*
diff --git a/src/soc/intel/xeon_sp/spr/ioat.c b/src/soc/intel/xeon_sp/spr/ioat.c
index a0babee5fe..ac968d1f48 100644
--- a/src/soc/intel/xeon_sp/spr/ioat.c
+++ b/src/soc/intel/xeon_sp/spr/ioat.c
@@ -8,6 +8,7 @@
#include <defs_iio.h>
#include <hob_iiouds.h>
#include <intelblocks/acpi.h>
+#include <intelblocks/vtd.h>
#include <soc/acpi.h>
#include <IioPcieConfigUpd.h>
@@ -29,7 +30,7 @@ static struct device_operations ioat_domain_ops = {
#endif
};
-static void create_ioat_domain(const union xeon_domain_path dp, struct bus *const upstream,
+static struct device *const create_ioat_domain(const union xeon_domain_path dp, struct bus *const upstream,
const unsigned int bus_base, const unsigned int bus_limit,
const resource_t mem32_base, const resource_t mem32_limit,
const resource_t mem64_base, const resource_t mem64_limit,
@@ -66,6 +67,8 @@ static void create_ioat_domain(const union xeon_domain_path dp, struct bus *cons
if (mem64_base <= mem64_limit)
domain_mem_window_from_to(domain, index++, mem64_base, mem64_limit + 1);
+
+ return domain;
}
void create_ioat_domains(const union xeon_domain_path path,
@@ -130,6 +133,18 @@ void create_ioat_domains(const union xeon_domain_path path,
mem64_limit = sr->PciResourceMem64Limit;
bus_base = sr->BusBase;
bus_limit = bus_base;
- create_ioat_domain(path, bus, bus_base, bus_limit, sr->PciResourceMem32Base, sr->PciResourceMem32Limit,
- mem64_base, mem64_limit, DOMAIN_TYPE_DINO, pci_segment_group);
+ struct device *const dev = create_ioat_domain(path, bus, bus_base, bus_limit,
+ sr->PciResourceMem32Base, sr->PciResourceMem32Limit,
+ mem64_base, mem64_limit, DOMAIN_TYPE_DINO, pci_segment_group);
+
+ /* Declare domain reserved MMIO */
+ uint64_t reserved_mmio = sr->VtdBarAddress + vtd_probe_bar_size(pcidev_on_root(0, 0));
+ if ((reserved_mmio >= sr->PciResourceMem32Base) &&
+ (reserved_mmio <= sr->PciResourceMem32Limit)) {
+ int index = 0;
+ for (struct resource *res = dev->resource_list; res; res = res->next)
+ index++;
+ mmio_range(dev, index, reserved_mmio,
+ sr->PciResourceMem32Limit - reserved_mmio + 1);
+ }
}