soc/intel/xeon_sp: Add domain role checking utils

For Xeon-SP, there are 4 main domain roles (PCIe/CXL/IOAT/UBOX).
This patch adds util function to check whether a given domain
belongs to one of these roles, or a give device belongs to
a domain of the specific role.

TEST=intel/archercity CRB

Change-Id: I6b31c29564c774c27e86f55749ca9eca057a0cfe
Signed-off-by: Shuo Liu <shuo.liu@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81046
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <patrick.rudolph@9elements.com>

2 files changed, 49 insertions, 0 deletions

diff --git a/src/soc/intel/xeon_sp/chip_common.c b/src/soc/intel/xeon_sp/chip_common.c
index b461f0e05d..d0e01bc7cf 100644
--- a/src/soc/intel/xeon_sp/chip_common.c
+++ b/src/soc/intel/xeon_sp/chip_common.c
@@ -400,3 +400,41 @@ void attach_iio_stacks(void)
 		}
 	}
 }
+
+bool is_pcie_domain(struct device *dev)
+{
+	if ((!dev) || (dev->path.type != DEVICE_PATH_DOMAIN))
+		return false;
+
+	return strstr(dev->name, DOMAIN_TYPE_PCIE);
+}
+
+bool is_ioat_domain(struct device *dev)
+{
+	if ((!dev) || (dev->path.type != DEVICE_PATH_DOMAIN))
+		return false;
+
+	return (strstr(dev->name, DOMAIN_TYPE_CPM0) ||
+		strstr(dev->name, DOMAIN_TYPE_CPM1) ||
+		strstr(dev->name, DOMAIN_TYPE_DINO) ||
+		strstr(dev->name, DOMAIN_TYPE_HQM0) ||
+		strstr(dev->name, DOMAIN_TYPE_HQM1));
+}
+
+bool is_ubox_domain(struct device *dev)
+{
+	if ((!dev) || (dev->path.type != DEVICE_PATH_DOMAIN))
+		return false;
+
+	return (strstr(dev->name, DOMAIN_TYPE_UBX0) ||
+		strstr(dev->name, DOMAIN_TYPE_UBX1));
+
+}
+
+bool is_cxl_domain(struct device *dev)
+{
+	if ((!dev) || (dev->path.type != DEVICE_PATH_DOMAIN))
+		return false;
+
+	return strstr(dev->name, DOMAIN_TYPE_CXL);
+}
diff --git a/src/soc/intel/xeon_sp/include/soc/chip_common.h b/src/soc/intel/xeon_sp/include/soc/chip_common.h
index 4dae5501fa..40c7ffa377 100644
--- a/src/soc/intel/xeon_sp/include/soc/chip_common.h
+++ b/src/soc/intel/xeon_sp/include/soc/chip_common.h
@@ -3,6 +3,7 @@
 #ifndef _CHIP_COMMON_H_
 #define _CHIP_COMMON_H_
 
+#include <device/device.h>
 #include <device/path.h>
 #include <hob_iiouds.h>
 
@@ -66,4 +67,14 @@ struct device *dev_find_all_devices_on_domain(struct device *domain,
 int iio_pci_domain_socket_from_dev(struct device *dev);
 int iio_pci_domain_stack_from_dev(struct device *dev);
 
+bool is_pcie_domain(struct device *dev);
+bool is_ioat_domain(struct device *dev);
+bool is_ubox_domain(struct device *dev);
+bool is_cxl_domain(struct device *dev);
+
+#define is_dev_on_pcie_domain(dev) is_pcie_domain(dev_get_pci_domain(dev))
+#define is_dev_on_ioat_domain(dev) is_ioat_domain(dev_get_pci_domain(dev))
+#define is_dev_on_ubox_domain(dev) is_ubox_domain(dev_get_pci_domain(dev))
+#define is_dev_on_cxl_domain(dev) is_cxl_domain(dev_get_pci_domain(dev))
+
 #endif /* _CHIP_COMMON_H_ */