diff --git a/Documentation/ABI/testing/sysfs-bus-cxl b/Documentation/ABI/testing/sysfs-bus-cxl
index 1ab69aca6152..223b8762d037 100644
--- a/Documentation/ABI/testing/sysfs-bus-cxl
+++ b/Documentation/ABI/testing/sysfs-bus-cxl
@@ -241,3 +241,30 @@ Description:
 		allocations are enforced to occur in increasing 'decoderX.Y/id'
 		order and frees are enforced to occur in decreasing
 		'decoderX.Y/id' order.
+
+
+What:		/sys/bus/cxl/devices/decoderX.Y/interleave_ways
+Date:		May, 2022
+KernelVersion:	v5.20
+Contact:	linux-cxl@vger.kernel.org
+Description:
+		(RO) The number of targets across which this decoder's host
+		physical address (HPA) memory range is interleaved. The device
+		maps every Nth block of HPA (of size ==
+		'interleave_granularity') to consecutive DPA addresses. The
+		decoder's position in the interleave is determined by the
+		device's (endpoint or switch) switch ancestry. For root
+		decoders their interleave is specified by platform firmware and
+		they only specify a downstream target order for host bridges.
+
+
+What:		/sys/bus/cxl/devices/decoderX.Y/interleave_granularity
+Date:		May, 2022
+KernelVersion:	v5.20
+Contact:	linux-cxl@vger.kernel.org
+Description:
+		(RO) The number of consecutive bytes of host physical address
+		space this decoder claims at address N before the decode rotates
+		to the next target in the interleave at address N +
+		interleave_granularity (assuming N is aligned to
+		interleave_granularity).
diff --git a/drivers/cxl/core/port.c b/drivers/cxl/core/port.c
index c7f1844d58de..719563d85ce1 100644
--- a/drivers/cxl/core/port.c
+++ b/drivers/cxl/core/port.c
@@ -260,10 +260,33 @@ static ssize_t dpa_size_store(struct device *dev, struct device_attribute *attr,
 }
 static DEVICE_ATTR_RW(dpa_size);
 
+static ssize_t interleave_granularity_show(struct device *dev,
+					   struct device_attribute *attr,
+					   char *buf)
+{
+	struct cxl_decoder *cxld = to_cxl_decoder(dev);
+
+	return sysfs_emit(buf, "%d\n", cxld->interleave_granularity);
+}
+
+static DEVICE_ATTR_RO(interleave_granularity);
+
+static ssize_t interleave_ways_show(struct device *dev,
+				    struct device_attribute *attr, char *buf)
+{
+	struct cxl_decoder *cxld = to_cxl_decoder(dev);
+
+	return sysfs_emit(buf, "%d\n", cxld->interleave_ways);
+}
+
+static DEVICE_ATTR_RO(interleave_ways);
+
 static struct attribute *cxl_decoder_base_attrs[] = {
 	&dev_attr_start.attr,
 	&dev_attr_size.attr,
 	&dev_attr_locked.attr,
+	&dev_attr_interleave_granularity.attr,
+	&dev_attr_interleave_ways.attr,
 	NULL,
 };